Merge "el3_payload: Add initial platform support for RD-N1-Edge"
diff --git a/Makefile b/Makefile
index 7456858..0179bbf 100644
--- a/Makefile
+++ b/Makefile
@@ -26,11 +26,11 @@
 CHECKCODE_ARGS		:=	--no-patch
 # Do not check the coding style on imported library files or documentation files
 INC_LIB_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
-					include/lib/stdlib,		\
+					include/lib/libc,		\
 					$(wildcard include/lib/*)))
 LIB_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
 					lib/compiler-rt			\
-					lib/stdlib,			\
+					lib/libc,			\
 					$(wildcard lib/*)))
 ROOT_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
 					lib				\
@@ -117,12 +117,16 @@
 include spm/cactus/cactus.mk
 include spm/ivy/ivy.mk
 
+################################################################################
+# Include libc
+################################################################################
+include lib/libc/libc.mk
+
 # Include platform specific makefile last because:
 # - the platform makefile may use all previous definitions in this file.
 # - the platform makefile may wish overwriting some of them.
 include ${PLAT_MAKEFILE_FULL}
 
-
 .SUFFIXES:
 
 ################################################################################
@@ -175,7 +179,8 @@
 
 COMMON_ASFLAGS		+=	-nostdinc -ffreestanding -Wa,--fatal-warnings	\
 				-Werror -Wmissing-include-dirs			\
-				-D__ASSEMBLY__ $(COMMON_ASFLAGS_$(ARCH))
+				-D__ASSEMBLY__ $(COMMON_ASFLAGS_$(ARCH))	\
+				${INCLUDES}
 COMMON_CFLAGS		+=	-nostdinc -ffreestanding -Wall	-Werror 	\
 				-Wmissing-include-dirs $(COMMON_CFLAGS_$(ARCH))	\
 				-std=gnu99 -Os
@@ -183,7 +188,7 @@
 
 # Get the content of CFLAGS user defined value last so they are appended after
 # the options defined in the Makefile
-COMMON_CFLAGS 		+=	${CFLAGS}
+COMMON_CFLAGS 		+=	${CFLAGS} ${INCLUDES}
 
 COMMON_LDFLAGS		+=	--fatal-warnings -O1 --gc-sections --build-id=none
 
@@ -199,29 +204,31 @@
 
 ################################################################################
 
-TFTF_SOURCES		:= ${FRAMEWORK_SOURCES}	${TESTS_SOURCES} ${PLAT_SOURCES}
+TFTF_SOURCES		:= ${FRAMEWORK_SOURCES}	${TESTS_SOURCES} ${PLAT_SOURCES} ${LIBC_SRCS}
 TFTF_INCLUDES		+= ${PLAT_INCLUDES}
 TFTF_CFLAGS		+= ${COMMON_CFLAGS}
 TFTF_ASFLAGS		+= ${COMMON_ASFLAGS}
 TFTF_LDFLAGS		+= ${COMMON_LDFLAGS}
 
-NS_BL1U_SOURCES		+= ${PLAT_SOURCES}
+NS_BL1U_SOURCES		+= ${PLAT_SOURCES} ${LIBC_SRCS}
 NS_BL1U_INCLUDES	+= ${PLAT_INCLUDES}
 NS_BL1U_CFLAGS		+= ${COMMON_CFLAGS}
 NS_BL1U_ASFLAGS		+= ${COMMON_ASFLAGS}
 NS_BL1U_LDFLAGS		+= ${COMMON_LDFLAGS}
 
-NS_BL2U_SOURCES		+= ${PLAT_SOURCES}
+NS_BL2U_SOURCES		+= ${PLAT_SOURCES} ${LIBC_SRCS}
 NS_BL2U_INCLUDES	+= ${PLAT_INCLUDES}
 NS_BL2U_CFLAGS		+= ${COMMON_CFLAGS}
 NS_BL2U_ASFLAGS		+= ${COMMON_ASFLAGS}
 NS_BL2U_LDFLAGS		+= ${COMMON_LDFLAGS}
 
+CACTUS_SOURCES		+= ${LIBC_SRCS}
 CACTUS_INCLUDES		+= ${PLAT_INCLUDES}
 CACTUS_CFLAGS		+= ${COMMON_CFLAGS}
 CACTUS_ASFLAGS		+= ${COMMON_ASFLAGS}
 CACTUS_LDFLAGS		+= ${COMMON_LDFLAGS}
 
+IVY_SOURCES		+= ${LIBC_SRCS}
 IVY_INCLUDES		+= ${PLAT_INCLUDES}
 IVY_CFLAGS		+= ${COMMON_CFLAGS}
 IVY_ASFLAGS		+= ${COMMON_ASFLAGS}
@@ -254,14 +261,14 @@
 checkcodebase:		locate-checkpatch
 	@echo "  CHECKING STYLE"
 	@if test -d .git ; then						\
-		git ls-files | grep -E -v 'stdlib|docs|\.md|\.rst' |	\
+		git ls-files | grep -E -v 'libc|docs|\.md|\.rst' |	\
 		while read GIT_FILE ;					\
 		do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ;	\
 		done ;							\
 	else								\
 		 find . -type f -not -iwholename "*.git*"		\
 		 -not -iwholename "*build*"				\
-		 -not -iwholename "*stdlib*"				\
+		 -not -iwholename "*libc*"				\
 		 -not -iwholename "*docs*"				\
 		 -not -iwholename "*.md"				\
 		 -not -iwholename "*.rst"				\
diff --git a/docs/design.rst b/docs/design.rst
index edb3c95..5a13d79 100644
--- a/docs/design.rst
+++ b/docs/design.rst
@@ -66,7 +66,7 @@
 
 -  **Library code.**
 
-   Firstly, there is ``include/stdlib/`` which provides standard C library
+   Firstly, there is ``include/libc/`` which provides standard C library
    functions like ``memcpy()``, ``printf()`` and so on.
    Additionally, various other APIs are provided under ``include/lib/``. The
    below list gives some examples but might not be exhaustive.
diff --git a/fwu/ns_bl1u/ns_bl1u.mk b/fwu/ns_bl1u/ns_bl1u.mk
index edc77be..7a6b65b 100644
--- a/fwu/ns_bl1u/ns_bl1u.mk
+++ b/fwu/ns_bl1u/ns_bl1u.mk
@@ -15,8 +15,6 @@
 	-Iinclude/common/${ARCH}			\
 	-Iinclude/lib					\
 	-Iinclude/lib/${ARCH}				\
-	-Iinclude/lib/stdlib				\
-	-Iinclude/lib/stdlib/sys			\
 	-Iinclude/lib/utils				\
 	-Iinclude/lib/xlat_tables			\
 	-Iinclude/plat/common				\
@@ -39,7 +37,6 @@
 			lib/locks/${ARCH}/spinlock.S			\
 			lib/smc/${ARCH}/asm_smc.S			\
 			lib/smc/${ARCH}/smc.c				\
-			${STD_LIB_SOURCES}				\
 			lib/utils/mp_printf.c				\
 			lib/utils/uuid.c				\
 			${XLAT_TABLES_LIB_SRCS}				\
diff --git a/fwu/ns_bl2u/ns_bl2u.mk b/fwu/ns_bl2u/ns_bl2u.mk
index 8c3924d..0351e55 100644
--- a/fwu/ns_bl2u/ns_bl2u.mk
+++ b/fwu/ns_bl2u/ns_bl2u.mk
@@ -15,8 +15,6 @@
 	-Iinclude/common/${ARCH}			\
 	-Iinclude/lib					\
 	-Iinclude/lib/${ARCH}				\
-	-Iinclude/lib/stdlib				\
-	-Iinclude/lib/stdlib/sys			\
 	-Iinclude/lib/utils				\
 	-Iinclude/lib/xlat_tables			\
 	-Iinclude/plat/common				\
@@ -37,7 +35,6 @@
 			lib/locks/${ARCH}/spinlock.S			\
 			lib/smc/${ARCH}/asm_smc.S			\
 			lib/smc/${ARCH}/smc.c				\
-			${STD_LIB_SOURCES}				\
 			lib/utils/mp_printf.c				\
 			lib/utils/uuid.c				\
 			${XLAT_TABLES_LIB_SRCS}				\
diff --git a/include/common/debug.h b/include/common/debug.h
index 53eebf7..9b2d842 100644
--- a/include/common/debug.h
+++ b/include/common/debug.h
@@ -65,6 +65,12 @@
 # define VERBOSE(...)
 #endif
 
+#if ENABLE_BACKTRACE
+void backtrace(const char *cookie);
+#else
+#define backtrace(x)
+#endif
+
 /*
  * For the moment this panic function is very basic: report an error and
  * spin. This can be expanded in the future to provide more information.
diff --git a/include/common/param_header.h b/include/common/param_header.h
index 32763dd..7834cbb 100644
--- a/include/common/param_header.h
+++ b/include/common/param_header.h
@@ -36,7 +36,7 @@
 
 #ifndef __ASSEMBLY__
 
-#include <types.h>
+#include <stdint.h>
 
 /***************************************************************************
  * This structure provides version information and the size of the
diff --git a/include/drivers/console.h b/include/drivers/console.h
index abbe356..72decb9 100644
--- a/include/drivers/console.h
+++ b/include/drivers/console.h
@@ -14,7 +14,7 @@
 
 #ifndef __ASSEMBLY__
 
-#include <types.h>
+#include <stdint.h>
 
 int console_init(uintptr_t base_addr,
 		unsigned int uart_clk, unsigned int baud_rate);
diff --git a/include/lib/irq.h b/include/lib/irq.h
index 1628221..6a37e05 100644
--- a/include/lib/irq.h
+++ b/include/lib/irq.h
@@ -7,6 +7,7 @@
 #ifndef __IRQ_H__
 #define  __IRQ_H__
 
+#include <cdefs.h>
 #include <platform_def.h> /* For CACHE_WRITEBACK_GRANULE */
 #include <stdint.h>
 
diff --git a/include/lib/libc/aarch32/endian_.h b/include/lib/libc/aarch32/endian_.h
new file mode 100644
index 0000000..0cf2c75
--- /dev/null
+++ b/include/lib/libc/aarch32/endian_.h
@@ -0,0 +1,146 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2001 David E. O'Brien
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)endian.h	8.1 (Berkeley) 6/10/93
+ * $NetBSD: endian.h,v 1.7 1999/08/21 05:53:51 simonb Exp $
+ * $FreeBSD$
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef ENDIAN__H
+#define ENDIAN__H
+
+#include <stdint.h>
+
+/*
+ * Definitions for byte order, according to byte significance from low
+ * address to high.
+ */
+#define _LITTLE_ENDIAN  1234    /* LSB first: i386, vax */
+#define _BIG_ENDIAN     4321    /* MSB first: 68000, ibm, net */
+#define _PDP_ENDIAN     3412    /* LSB first in word, MSW first in long */
+
+#ifdef __ARMEB__
+#define _BYTE_ORDER	_BIG_ENDIAN
+#else
+#define	_BYTE_ORDER	_LITTLE_ENDIAN
+#endif /* __ARMEB__ */
+
+#if __BSD_VISIBLE
+#define LITTLE_ENDIAN   _LITTLE_ENDIAN
+#define BIG_ENDIAN      _BIG_ENDIAN
+#define PDP_ENDIAN      _PDP_ENDIAN
+#define BYTE_ORDER      _BYTE_ORDER
+#endif
+
+#ifdef __ARMEB__
+#define _QUAD_HIGHWORD 0
+#define _QUAD_LOWWORD 1
+#define __ntohl(x)	((uint32_t)(x))
+#define __ntohs(x)	((uint16_t)(x))
+#define __htonl(x)	((uint32_t)(x))
+#define __htons(x)	((uint16_t)(x))
+#else
+#define _QUAD_HIGHWORD  1
+#define _QUAD_LOWWORD 0
+#define __ntohl(x)        (__bswap32(x))
+#define __ntohs(x)        (__bswap16(x))
+#define __htonl(x)        (__bswap32(x))
+#define __htons(x)        (__bswap16(x))
+#endif /* __ARMEB__ */
+
+static __inline uint64_t
+__bswap64(uint64_t _x)
+{
+
+	return ((_x >> 56) | ((_x >> 40) & 0xff00) | ((_x >> 24) & 0xff0000) |
+	    ((_x >> 8) & 0xff000000) | ((_x << 8) & ((uint64_t)0xff << 32)) |
+	    ((_x << 24) & ((uint64_t)0xff << 40)) |
+	    ((_x << 40) & ((uint64_t)0xff << 48)) | ((_x << 56)));
+}
+
+static __inline uint32_t
+__bswap32_var(uint32_t v)
+{
+	uint32_t t1;
+
+	__asm __volatile("eor %1, %0, %0, ror #16\n"
+	    		"bic %1, %1, #0x00ff0000\n"
+			"mov %0, %0, ror #8\n"
+			"eor %0, %0, %1, lsr #8\n"
+			 : "+r" (v), "=r" (t1));
+
+	return (v);
+}
+
+static __inline uint16_t
+__bswap16_var(uint16_t v)
+{
+	uint32_t ret = v & 0xffff;
+
+	__asm __volatile(
+	    "mov    %0, %0, ror #8\n"
+	    "orr    %0, %0, %0, lsr #16\n"
+	    "bic    %0, %0, %0, lsl #16"
+	    : "+r" (ret));
+
+	return ((uint16_t)ret);
+}
+
+#ifdef __OPTIMIZE__
+
+#define __bswap32_constant(x)	\
+    ((((x) & 0xff000000U) >> 24) |	\
+     (((x) & 0x00ff0000U) >>  8) |	\
+     (((x) & 0x0000ff00U) <<  8) |	\
+     (((x) & 0x000000ffU) << 24))
+
+#define __bswap16_constant(x)	\
+    ((((x) & 0xff00) >> 8) |		\
+     (((x) & 0x00ff) << 8))
+
+#define __bswap16(x)	\
+    ((uint16_t)(__builtin_constant_p(x) ?	\
+     __bswap16_constant(x) :			\
+     __bswap16_var(x)))
+
+#define __bswap32(x)	\
+    ((uint32_t)(__builtin_constant_p(x) ? 	\
+     __bswap32_constant(x) :			\
+     __bswap32_var(x)))
+
+#else
+#define __bswap16(x)	__bswap16_var(x)
+#define __bswap32(x)	__bswap32_var(x)
+
+#endif /* __OPTIMIZE__ */
+#endif /* ENDIAN__H */
diff --git a/include/lib/libc/aarch32/limits_.h b/include/lib/libc/aarch32/limits_.h
new file mode 100644
index 0000000..26cec17
--- /dev/null
+++ b/include/lib/libc/aarch32/limits_.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#define SCHAR_MAX  0x7F
+#define SCHAR_MIN  (-SCHAR_MIN - 1)
+#define CHAR_MAX   0x7F
+#define CHAR_MIN   (-CHAR_MAX - 1)
+#define UCHAR_MAX  0xFFU
+#define SHRT_MAX   0x7FFF
+#define SHRT_MIN   (-SHRT_MAX - 1)
+#define USHRT_MAX  0xFFFFU
+#define INT_MAX    0x7FFFFFFF
+#define INT_MIN    (-INT_MAX - 1)
+#define UINT_MAX   0xFFFFFFFFU
+#define LONG_MAX   0x7FFFFFFFL
+#define LONG_MIN   (-LONG_MAX - 1L)
+#define ULONG_MAX  0xFFFFFFFFUL
+#define LLONG_MAX  0x7FFFFFFFFFFFFFFFLL
+#define LLONG_MIN  (-LLONG_MAX - 1LL)
+#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL
+
+#define __LONG_BIT 32
+#define __WORD_BIT 32
diff --git a/include/lib/libc/aarch32/stddef_.h b/include/lib/libc/aarch32/stddef_.h
new file mode 100644
index 0000000..1babfad
--- /dev/null
+++ b/include/lib/libc/aarch32/stddef_.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDDEF__H
+#define STDDEF__H
+
+#ifndef SIZET_
+typedef unsigned int size_t;
+#define SIZET_
+#endif
+
+#ifndef _PTRDIFF_T
+typedef long ptrdiff_t;
+#define _PTRDIFF_T
+#endif
+
+#endif /* STDDEF__H */
diff --git a/include/lib/libc/aarch32/stdint_.h b/include/lib/libc/aarch32/stdint_.h
new file mode 100644
index 0000000..4f49485
--- /dev/null
+++ b/include/lib/libc/aarch32/stdint_.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#define INT8_MAX  0x7F
+#define INT8_MIN  (-INT8_MAX - 1)
+#define UINT8_MAX 0xFFU
+
+#define INT16_MAX  0x7FFF
+#define INT16_MIN  (-INT16_MAX - 1)
+#define UINT16_MAX 0xFFFFU
+
+#define INT32_MAX  0x7FFFFFFF
+#define INT32_MIN  (-INT32_MAX - 1)
+#define UINT32_MAX 0xFFFFFFFFU
+
+#define INT64_MAX  0x7FFFFFFFFFFFFFFFLL
+#define INT64_MIN  (-INT64_MAX - 1LL)
+#define UINT64_MAX 0xFFFFFFFFFFFFFFFFULL
+
+#define INT_LEAST8_MIN  INT8_MIN
+#define INT_LEAST8_MAX  INT8_MAX
+#define UINT_LEAST8_MAX UINT8_MAX
+
+#define INT_LEAST16_MIN  INT16_MIN
+#define INT_LEAST16_MAX  INT16_MAX
+#define UINT_LEAST16_MAX UINT16_MAX
+
+#define INT_LEAST32_MIN  INT32_MIN
+#define INT_LEAST32_MAX  INT32_MAX
+#define UINT_LEAST32_MAX UINT32_MAX
+
+#define INT_LEAST64_MIN  INT64_MIN
+#define INT_LEAST64_MAX  INT64_MAX
+#define UINT_LEAST64_MAX UINT64_MAX
+
+#define INT_FAST8_MIN  INT32_MIN
+#define INT_FAST8_MAX  INT32_MAX
+#define UINT_FAST8_MAX UINT32_MAX
+
+#define INT_FAST16_MIN  INT32_MIN
+#define INT_FAST16_MAX  INT32_MAX
+#define UINT_FAST16_MAX UINT32_MAX
+
+#define INT_FAST32_MIN  INT32_MIN
+#define INT_FAST32_MAX  INT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INT_FAST64_MIN  INT64_MIN
+#define INT_FAST64_MAX  INT64_MAX
+#define UINT_FAST64_MAX UINT64_MAX
+
+#define INTPTR_MIN  INT32_MIN
+#define INTPTR_MAX  INT32_MAX
+#define UINTPTR_MAX UINT32_MAX
+
+#define INTMAX_MIN  INT64_MIN
+#define INTMAX_MAX  INT64_MAX
+#define UINTMAX_MAX UINT64_MAX
+
+#define PTRDIFF_MIN INT32_MIN
+#define PTRDIFF_MAX INT32_MAX
+
+#define SIZE_MAX UINT32_MAX
+
+#define INT8_C(x)  x
+#define INT16_C(x) x
+#define INT32_C(x) x
+#define INT64_C(x) x ## LL
+
+#define UINT8_C(x)  x
+#define UINT16_C(x) x
+#define UINT32_C(x) x ## U
+#define UINT64_C(x) x ## ULL
+
+#define INTMAX_C(x)  x ## LL
+#define UINTMAX_C(x) x ## ULL
+
+typedef signed char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+typedef long long int64_t;
+
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+typedef unsigned long long uint64_t;
+
+typedef signed char int8_least_t;
+typedef short int16_least_t;
+typedef int int32_least_t;
+typedef long long int64_least_t;
+
+typedef unsigned char uint8_least_t;
+typedef unsigned short uint16_least_t;
+typedef unsigned int uint32_least_t;
+typedef unsigned long long uint64_least_t;
+
+typedef int int8_fast_t;
+typedef int int16_fast_t;
+typedef int int32_fast_t;
+typedef long long int64_fast_t;
+
+typedef unsigned int uint8_fast_t;
+typedef unsigned int uint16_fast_t;
+typedef unsigned int uint32_fast_t;
+typedef unsigned long long uint64_fast_t;
+
+typedef long intptr_t;
+typedef unsigned long uintptr_t;
+
+typedef long long intmax_t;
+typedef unsigned long long uintmax_t;
+
+typedef long register_t;
+typedef unsigned long u_register_t;
diff --git a/include/lib/libc/aarch32/stdio_.h b/include/lib/libc/aarch32/stdio_.h
new file mode 100644
index 0000000..50d3cc2
--- /dev/null
+++ b/include/lib/libc/aarch32/stdio_.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDIO__H
+#define STDIO__H
+
+#ifndef SIZET_
+typedef unsigned int size_t;
+#define SIZET_
+#endif
+
+#ifndef SSIZET_
+typedef int ssize_t;
+#define SSIZET_
+#endif
+
+#endif /* STDIO__H */
diff --git a/include/lib/libc/aarch32/stdlib_.h b/include/lib/libc/aarch32/stdlib_.h
new file mode 100644
index 0000000..9c07857
--- /dev/null
+++ b/include/lib/libc/aarch32/stdlib_.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDLIB__H
+#define STDLIB__H
+
+#ifndef SIZET_
+typedef unsigned int size_t;
+#define SIZET_
+#endif
+
+#define EXIT_FAILURE 1
+#define EXIT_SUCCESS 0
+
+#endif /* STDLIB__H */
diff --git a/include/lib/libc/aarch32/string_.h b/include/lib/libc/aarch32/string_.h
new file mode 100644
index 0000000..4e139b0
--- /dev/null
+++ b/include/lib/libc/aarch32/string_.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STRING__H
+#define STRING__H
+
+#ifndef SIZET_
+typedef unsigned int size_t;
+#define SIZET_
+#endif
+
+#endif /* STRING__H */
diff --git a/include/lib/libc/aarch32/time_.h b/include/lib/libc/aarch32/time_.h
new file mode 100644
index 0000000..a9169c2
--- /dev/null
+++ b/include/lib/libc/aarch32/time_.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef TIME__H
+#define TIME__H
+
+#ifndef SIZET_
+typedef unsigned int size_t;
+#define SIZET_
+#endif
+
+typedef long int time_t;
+
+#endif /* TIME__H */
diff --git a/include/lib/libc/aarch64/endian_.h b/include/lib/libc/aarch64/endian_.h
new file mode 100644
index 0000000..7c79fd4
--- /dev/null
+++ b/include/lib/libc/aarch64/endian_.h
@@ -0,0 +1,128 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2001 David E. O'Brien
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)endian.h	8.1 (Berkeley) 6/10/93
+ * $NetBSD: endian.h,v 1.7 1999/08/21 05:53:51 simonb Exp $
+ * $FreeBSD$
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef ENDIAN__H
+#define ENDIAN__H
+
+#include <stdint.h>
+
+/*
+ * Definitions for byte order, according to byte significance from low
+ * address to high.
+ */
+#define	_LITTLE_ENDIAN  1234    /* LSB first: i386, vax */
+#define	_BIG_ENDIAN     4321    /* MSB first: 68000, ibm, net */
+#define	_PDP_ENDIAN     3412    /* LSB first in word, MSW first in long */
+
+#define	_BYTE_ORDER	_LITTLE_ENDIAN
+
+#if __BSD_VISIBLE
+#define	LITTLE_ENDIAN   _LITTLE_ENDIAN
+#define	BIG_ENDIAN      _BIG_ENDIAN
+#define	PDP_ENDIAN      _PDP_ENDIAN
+#define	BYTE_ORDER      _BYTE_ORDER
+#endif
+
+#define	_QUAD_HIGHWORD  1
+#define	_QUAD_LOWWORD 0
+#define	__ntohl(x)        (__bswap32(x))
+#define	__ntohs(x)        (__bswap16(x))
+#define	__htonl(x)        (__bswap32(x))
+#define	__htons(x)        (__bswap16(x))
+
+static __inline uint64_t
+__bswap64(uint64_t x)
+{
+	uint64_t ret;
+
+	__asm __volatile("rev %0, %1\n"
+			 : "=&r" (ret), "+r" (x));
+
+	return (ret);
+}
+
+static __inline uint32_t
+__bswap32_var(uint32_t v)
+{
+	uint32_t ret;
+
+	__asm __volatile("rev32 %x0, %x1\n"
+			 : "=&r" (ret), "+r" (v));
+
+	return (ret);
+}
+
+static __inline uint16_t
+__bswap16_var(uint16_t v)
+{
+	uint32_t ret;
+
+	__asm __volatile("rev16 %w0, %w1\n"
+			 : "=&r" (ret), "+r" (v));
+
+	return ((uint16_t)ret);
+}
+
+#ifdef __OPTIMIZE__
+
+#define	__bswap32_constant(x)	\
+    ((((x) & 0xff000000U) >> 24) |	\
+     (((x) & 0x00ff0000U) >>  8) |	\
+     (((x) & 0x0000ff00U) <<  8) |	\
+     (((x) & 0x000000ffU) << 24))
+
+#define	__bswap16_constant(x)	\
+    ((((x) & 0xff00) >> 8) |		\
+     (((x) & 0x00ff) << 8))
+
+#define	__bswap16(x)	\
+    ((uint16_t)(__builtin_constant_p(x) ?	\
+     __bswap16_constant((uint16_t)(x)) :	\
+     __bswap16_var(x)))
+
+#define	__bswap32(x)	\
+    ((uint32_t)(__builtin_constant_p(x) ? 	\
+     __bswap32_constant((uint32_t)(x)) :	\
+     __bswap32_var(x)))
+
+#else
+#define	__bswap16(x)	__bswap16_var(x)
+#define	__bswap32(x)	__bswap32_var(x)
+
+#endif /* __OPTIMIZE__ */
+#endif /* ENDIAN__H */
diff --git a/include/lib/libc/aarch64/limits_.h b/include/lib/libc/aarch64/limits_.h
new file mode 100644
index 0000000..e36cfe7
--- /dev/null
+++ b/include/lib/libc/aarch64/limits_.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#define SCHAR_MAX  0x7F
+#define SCHAR_MIN  (-SCHAR_MIN - 1)
+#define CHAR_MAX   0x7F
+#define CHAR_MIN   (-CHAR_MAX - 1)
+#define UCHAR_MAX  0xFFU
+#define SHRT_MAX   0x7FFF
+#define SHRT_MIN   (-SHRT_MAX - 1)
+#define USHRT_MAX  0xFFFFU
+#define INT_MAX    0x7FFFFFFF
+#define INT_MIN    (-INT_MAX - 1)
+#define UINT_MAX   0xFFFFFFFFU
+#define LONG_MAX   0x7FFFFFFFFFFFFFFFL
+#define LONG_MIN   (-LONG_MAX - 1L)
+#define ULONG_MAX  0xFFFFFFFFFFFFFFFFUL
+#define LLONG_MAX  0x7FFFFFFFFFFFFFFFLL
+#define LLONG_MIN  (-LLONG_MAX - 1LL)
+#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL
+
+#define __LONG_BIT 64
+#define __WORD_BIT 32
diff --git a/include/lib/libc/aarch64/setjmp_.h b/include/lib/libc/aarch64/setjmp_.h
new file mode 100644
index 0000000..174b3eb
--- /dev/null
+++ b/include/lib/libc/aarch64/setjmp_.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SETJMP__H
+#define SETJMP__H
+
+#define JMP_CTX_X19	0x0
+#define JMP_CTX_X21	0x10
+#define JMP_CTX_X23	0x20
+#define JMP_CTX_X25	0x30
+#define JMP_CTX_X27	0x40
+#define JMP_CTX_X29	0x50
+#define JMP_CTX_SP	0x60
+#define JMP_CTX_END	0x70 /* Aligned to 16 bytes */
+
+#define JMP_SIZE	(JMP_CTX_END >> 3)
+
+#ifndef __ASSEMBLY__
+
+#include <cdefs.h>
+
+/* Jump buffer hosting x18 - x30 and sp_el0 registers */
+typedef uint64_t jmp_buf[JMP_SIZE] __aligned(16);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* SETJMP__H */
diff --git a/include/lib/libc/aarch64/stddef_.h b/include/lib/libc/aarch64/stddef_.h
new file mode 100644
index 0000000..b7d8209
--- /dev/null
+++ b/include/lib/libc/aarch64/stddef_.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDDEF__H
+#define STDDEF__H
+
+#ifndef SIZET_
+typedef unsigned long size_t;
+#define SIZET_
+#endif
+
+#ifndef _PTRDIFF_T
+typedef long ptrdiff_t;
+#define _PTRDIFF_T
+#endif
+
+#endif /* STDDEF__H */
diff --git a/include/lib/libc/aarch64/stdint_.h b/include/lib/libc/aarch64/stdint_.h
new file mode 100644
index 0000000..b99be30
--- /dev/null
+++ b/include/lib/libc/aarch64/stdint_.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#define INT8_MAX  0x7F
+#define INT8_MIN  (-INT8_MAX - 1)
+#define UINT8_MAX 0xFFU
+
+#define INT16_MAX  0x7FFF
+#define INT16_MIN  (-INT16_MAX - 1)
+#define UINT16_MAX 0xFFFFU
+
+#define INT32_MAX  0x7FFFFFFF
+#define INT32_MIN  (-INT32_MAX - 1)
+#define UINT32_MAX 0xFFFFFFFFU
+
+#define INT64_MAX  0x7FFFFFFFFFFFFFFFLL
+#define INT64_MIN  (-INT64_MAX - 1LL)
+#define UINT64_MAX 0xFFFFFFFFFFFFFFFFULL
+
+#define INT_LEAST8_MIN  INT8_MIN
+#define INT_LEAST8_MAX  INT8_MAX
+#define UINT_LEAST8_MAX UINT8_MAX
+
+#define INT_LEAST16_MIN  INT16_MIN
+#define INT_LEAST16_MAX  INT16_MAX
+#define UINT_LEAST16_MAX UINT16_MAX
+
+#define INT_LEAST32_MIN  INT32_MIN
+#define INT_LEAST32_MAX  INT32_MAX
+#define UINT_LEAST32_MAX UINT32_MAX
+
+#define INT_LEAST64_MIN  INT64_MIN
+#define INT_LEAST64_MAX  INT64_MAX
+#define UINT_LEAST64_MAX UINT64_MAX
+
+#define INT_FAST8_MIN  INT32_MIN
+#define INT_FAST8_MAX  INT32_MAX
+#define UINT_FAST8_MAX UINT32_MAX
+
+#define INT_FAST16_MIN  INT32_MIN
+#define INT_FAST16_MAX  INT32_MAX
+#define UINT_FAST16_MAX UINT32_MAX
+
+#define INT_FAST32_MIN  INT32_MIN
+#define INT_FAST32_MAX  INT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INT_FAST64_MIN  INT64_MIN
+#define INT_FAST64_MAX  INT64_MAX
+#define UINT_FAST64_MAX UINT64_MAX
+
+#define INTPTR_MIN  INT64_MIN
+#define INTPTR_MAX  INT64_MAX
+#define UINTPTR_MAX UINT64_MAX
+
+#define INTMAX_MIN  INT64_MIN
+#define INTMAX_MAX  INT64_MAX
+#define UINTMAX_MAX UINT64_MAX
+
+#define PTRDIFF_MIN INT64_MIN
+#define PTRDIFF_MAX INT64_MAX
+
+#define SIZE_MAX UINT64_MAX
+
+#define INT8_C(x)  x
+#define INT16_C(x) x
+#define INT32_C(x) x
+#define INT64_C(x) x ## LL
+
+#define UINT8_C(x)  x
+#define UINT16_C(x) x
+#define UINT32_C(x) x ## U
+#define UINT64_C(x) x ## ULL
+
+#define INTMAX_C(x)  x ## L
+#define UINTMAX_C(x) x ## ULL
+
+typedef signed char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+typedef long long int64_t;
+
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+typedef unsigned long long uint64_t;
+
+typedef signed char int8_least_t;
+typedef short int16_least_t;
+typedef int int32_least_t;
+typedef long long int64_least_t;
+
+typedef unsigned char uint8_least_t;
+typedef unsigned short uint16_least_t;
+typedef unsigned int uint32_least_t;
+typedef unsigned long long uint64_least_t;
+
+typedef int int8_fast_t;
+typedef int int16_fast_t;
+typedef int int32_fast_t;
+typedef long long int64_fast_t;
+
+typedef unsigned int uint8_fast_t;
+typedef unsigned int uint16_fast_t;
+typedef unsigned int uint32_fast_t;
+typedef unsigned long long uint64_fast_t;
+
+typedef long intptr_t;
+typedef unsigned long uintptr_t;
+
+typedef long intmax_t;
+typedef unsigned long uintmax_t;
+
+typedef long register_t;
+typedef unsigned long u_register_t;
diff --git a/include/lib/libc/aarch64/stdio_.h b/include/lib/libc/aarch64/stdio_.h
new file mode 100644
index 0000000..09b0172
--- /dev/null
+++ b/include/lib/libc/aarch64/stdio_.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDIO__H
+#define STDIO__H
+
+#ifndef SIZET_
+typedef unsigned long size_t;
+#define SIZET_
+#endif
+
+#ifndef SSIZET_
+typedef long ssize_t;
+#define SSIZET_
+#endif
+
+#endif /* STDIO__H */
diff --git a/include/lib/libc/aarch64/stdlib_.h b/include/lib/libc/aarch64/stdlib_.h
new file mode 100644
index 0000000..81a39d1
--- /dev/null
+++ b/include/lib/libc/aarch64/stdlib_.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDLIB__H
+#define STDLIB__H
+
+#ifndef SIZET_
+typedef unsigned long size_t;
+#define SIZET_
+#endif
+
+#define EXIT_FAILURE 1
+#define EXIT_SUCCESS 0
+
+#endif /* STDLIB__H */
diff --git a/include/lib/libc/aarch64/string_.h b/include/lib/libc/aarch64/string_.h
new file mode 100644
index 0000000..71c51a6
--- /dev/null
+++ b/include/lib/libc/aarch64/string_.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STRING__H
+#define STRING__H
+
+#ifndef SIZET_
+typedef unsigned long size_t;
+#define SIZET_
+#endif
+
+#endif /* STRING__H */
diff --git a/include/lib/libc/aarch64/time_.h b/include/lib/libc/aarch64/time_.h
new file mode 100644
index 0000000..68ab1b8
--- /dev/null
+++ b/include/lib/libc/aarch64/time_.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef TIME__H
+#define TIME__H
+
+#ifndef SIZET_
+typedef unsigned long size_t;
+#define SIZET_
+#endif
+
+typedef long int time_t;
+
+#endif /* TIME__H */
diff --git a/include/lib/libc/assert.h b/include/lib/libc/assert.h
new file mode 100644
index 0000000..ce631e3
--- /dev/null
+++ b/include/lib/libc/assert.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef ASSERT_H
+#define ASSERT_H
+
+#include <cdefs.h>
+
+#include <common/debug.h>
+
+#if ENABLE_ASSERTIONS
+#define assert(e)	((e) ? (void)0 : __assert(__FILE__, __LINE__, #e))
+#else
+#define assert(e)	((void)0)
+#endif /* ENABLE_ASSERTIONS */
+
+__dead2 void __assert(const char *file, unsigned int line,
+		      const char *assertion);
+
+#endif /* ASSERT_H */
diff --git a/include/lib/libc/cdefs.h b/include/lib/libc/cdefs.h
new file mode 100644
index 0000000..c3dd6f1
--- /dev/null
+++ b/include/lib/libc/cdefs.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CDEFS_H
+#define CDEFS_H
+
+#define __dead2		__attribute__((__noreturn__))
+#define __deprecated	__attribute__((__deprecated__))
+#define __packed	__attribute__((__packed__))
+#define __used		__attribute__((__used__))
+#define __unused	__attribute__((__unused__))
+#define __aligned(x)	__attribute__((__aligned__(x)))
+#define __section(x)	__attribute__((__section__(x)))
+/*
+ * For compatibility with TF-A codebase.
+ */
+#define __init
+
+
+#define __printflike(fmtarg, firstvararg) \
+		__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+
+#define __weak_reference(sym, alias)	\
+	__asm__(".weak alias");		\
+	__asm__(".equ alias, sym")
+
+#define __STRING(x)	#x
+#define __XSTRING(x)	__STRING(x)
+
+#endif /* CDEFS_H */
diff --git a/include/lib/libc/endian.h b/include/lib/libc/endian.h
new file mode 100644
index 0000000..4100f57
--- /dev/null
+++ b/include/lib/libc/endian.h
@@ -0,0 +1,191 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2002 Thomas Moestl <tmm@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef ENDIAN_H
+#define ENDIAN_H
+
+#include <cdefs.h>
+#include <stdint.h>
+#include <endian_.h>
+
+/*
+ * General byte order swapping functions.
+ */
+#define	bswap16(x)	__bswap16(x)
+#define	bswap32(x)	__bswap32(x)
+#define	bswap64(x)	__bswap64(x)
+
+/*
+ * Host to big endian, host to little endian, big endian to host, and little
+ * endian to host byte order functions as detailed in byteorder(9).
+ */
+#if _BYTE_ORDER == _LITTLE_ENDIAN
+#define	htobe16(x)	bswap16((x))
+#define	htobe32(x)	bswap32((x))
+#define	htobe64(x)	bswap64((x))
+#define	htole16(x)	((uint16_t)(x))
+#define	htole32(x)	((uint32_t)(x))
+#define	htole64(x)	((uint64_t)(x))
+
+#define	be16toh(x)	bswap16((x))
+#define	be32toh(x)	bswap32((x))
+#define	be64toh(x)	bswap64((x))
+#define	le16toh(x)	((uint16_t)(x))
+#define	le32toh(x)	((uint32_t)(x))
+#define	le64toh(x)	((uint64_t)(x))
+#else /* _BYTE_ORDER != _LITTLE_ENDIAN */
+#define	htobe16(x)	((uint16_t)(x))
+#define	htobe32(x)	((uint32_t)(x))
+#define	htobe64(x)	((uint64_t)(x))
+#define	htole16(x)	bswap16((x))
+#define	htole32(x)	bswap32((x))
+#define	htole64(x)	bswap64((x))
+
+#define	be16toh(x)	((uint16_t)(x))
+#define	be32toh(x)	((uint32_t)(x))
+#define	be64toh(x)	((uint64_t)(x))
+#define	le16toh(x)	bswap16((x))
+#define	le32toh(x)	bswap32((x))
+#define	le64toh(x)	bswap64((x))
+#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */
+
+/* Alignment-agnostic encode/decode bytestream to/from little/big endian. */
+
+static __inline uint16_t
+be16dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return ((p[0] << 8) | p[1]);
+}
+
+static __inline uint32_t
+be32dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return (((unsigned)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
+}
+
+static __inline uint64_t
+be64dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return (((uint64_t)be32dec(p) << 32) | be32dec(p + 4));
+}
+
+static __inline uint16_t
+le16dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return ((p[1] << 8) | p[0]);
+}
+
+static __inline uint32_t
+le32dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return (((unsigned)p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
+}
+
+static __inline uint64_t
+le64dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return (((uint64_t)le32dec(p + 4) << 32) | le32dec(p));
+}
+
+static __inline void
+be16enc(void *pp, uint16_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	p[0] = (u >> 8) & 0xff;
+	p[1] = u & 0xff;
+}
+
+static __inline void
+be32enc(void *pp, uint32_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	p[0] = (u >> 24) & 0xff;
+	p[1] = (u >> 16) & 0xff;
+	p[2] = (u >> 8) & 0xff;
+	p[3] = u & 0xff;
+}
+
+static __inline void
+be64enc(void *pp, uint64_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	be32enc(p, (uint32_t)(u >> 32));
+	be32enc(p + 4, (uint32_t)(u & 0xffffffffU));
+}
+
+static __inline void
+le16enc(void *pp, uint16_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	p[0] = u & 0xff;
+	p[1] = (u >> 8) & 0xff;
+}
+
+static __inline void
+le32enc(void *pp, uint32_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	p[0] = u & 0xff;
+	p[1] = (u >> 8) & 0xff;
+	p[2] = (u >> 16) & 0xff;
+	p[3] = (u >> 24) & 0xff;
+}
+
+static __inline void
+le64enc(void *pp, uint64_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	le32enc(p, (uint32_t)(u & 0xffffffffU));
+	le32enc(p + 4, (uint32_t)(u >> 32));
+}
+
+#endif /* ENDIAN_H */
diff --git a/include/lib/stdlib/sys/errno.h b/include/lib/libc/errno.h
similarity index 87%
rename from include/lib/stdlib/sys/errno.h
rename to include/lib/libc/errno.h
index f595514..029912f 100644
--- a/include/lib/stdlib/sys/errno.h
+++ b/include/lib/libc/errno.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
@@ -15,7 +17,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -34,17 +36,13 @@
  *	@(#)errno.h	8.5 (Berkeley) 1/21/94
  * $FreeBSD$
  */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
 
-#ifndef _SYS_ERRNO_H_
-#define _SYS_ERRNO_H_
-
-#ifndef _KERNEL
-#include <sys/cdefs.h>
-__BEGIN_DECLS
-int *	__error(void);
-__END_DECLS
-#define	errno		(* __error())
-#endif
+#ifndef ERRNO_H
+#define ERRNO_H
 
 #define	EPERM		1		/* Operation not permitted */
 #define	ENOENT		2		/* No such file or directory */
@@ -61,9 +59,7 @@
 #define	ENOMEM		12		/* Cannot allocate memory */
 #define	EACCES		13		/* Permission denied */
 #define	EFAULT		14		/* Bad address */
-#ifndef _POSIX_SOURCE
 #define	ENOTBLK		15		/* Block device required */
-#endif
 #define	EBUSY		16		/* Device busy */
 #define	EEXIST		17		/* File exists */
 #define	EXDEV		18		/* Cross-device link */
@@ -74,9 +70,7 @@
 #define	ENFILE		23		/* Too many open files in system */
 #define	EMFILE		24		/* Too many open files */
 #define	ENOTTY		25		/* Inappropriate ioctl for device */
-#ifndef _POSIX_SOURCE
 #define	ETXTBSY		26		/* Text file busy */
-#endif
 #define	EFBIG		27		/* File too large */
 #define	ENOSPC		28		/* No space left on device */
 #define	ESPIPE		29		/* Illegal seek */
@@ -90,7 +84,6 @@
 
 /* non-blocking and interrupt i/o */
 #define	EAGAIN		35		/* Resource temporarily unavailable */
-#ifndef _POSIX_SOURCE
 #define	EWOULDBLOCK	EAGAIN		/* Operation would block */
 #define	EINPROGRESS	36		/* Operation now in progress */
 #define	EALREADY	37		/* Operation already in progress */
@@ -125,18 +118,14 @@
 #define	ECONNREFUSED	61		/* Connection refused */
 
 #define	ELOOP		62		/* Too many levels of symbolic links */
-#endif /* _POSIX_SOURCE */
 #define	ENAMETOOLONG	63		/* File name too long */
 
 /* should be rearranged */
-#ifndef _POSIX_SOURCE
 #define	EHOSTDOWN	64		/* Host is down */
 #define	EHOSTUNREACH	65		/* No route to host */
-#endif /* _POSIX_SOURCE */
 #define	ENOTEMPTY	66		/* Directory not empty */
 
 /* quotas & mush */
-#ifndef _POSIX_SOURCE
 #define	EPROCLIM	67		/* Too many processes */
 #define	EUSERS		68		/* Too many users */
 #define	EDQUOT		69		/* Disc quota exceeded */
@@ -149,12 +138,10 @@
 #define	EPROGUNAVAIL	74		/* RPC prog. not avail */
 #define	EPROGMISMATCH	75		/* Program version wrong */
 #define	EPROCUNAVAIL	76		/* Bad procedure for program */
-#endif /* _POSIX_SOURCE */
 
 #define	ENOLCK		77		/* No locks available */
 #define	ENOSYS		78		/* Function not implemented */
 
-#ifndef _POSIX_SOURCE
 #define	EFTYPE		79		/* Inappropriate file type or format */
 #define	EAUTH		80		/* Authentication error */
 #define	ENEEDAUTH	81		/* Need authenticator */
@@ -166,28 +153,17 @@
 #define	ENOATTR		87		/* Attribute not found */
 
 #define	EDOOFUS		88		/* Programming error */
-#endif /* _POSIX_SOURCE */
 
 #define	EBADMSG		89		/* Bad message */
 #define	EMULTIHOP	90		/* Multihop attempted */
 #define	ENOLINK		91		/* Link has been severed */
 #define	EPROTO		92		/* Protocol error */
 
-#ifndef _POSIX_SOURCE
 #define	ENOTCAPABLE	93		/* Capabilities insufficient */
 #define	ECAPMODE	94		/* Not permitted in capability mode */
-#endif /* _POSIX_SOURCE */
+#define	ENOTRECOVERABLE	95		/* State not recoverable */
+#define	EOWNERDEAD	96		/* Previous owner died */
 
-#ifndef _POSIX_SOURCE
-#define	ELAST		94		/* Must be equal largest errno */
-#endif /* _POSIX_SOURCE */
+#define	ELAST		96		/* Must be equal largest errno */
 
-#ifdef _KERNEL
-/* pseudo-errors returned inside kernel to modify return to process */
-#define	ERESTART	(-1)		/* restart syscall */
-#define	EJUSTRETURN	(-2)		/* don't modify regs, just return */
-#define	ENOIOCTL	(-3)		/* ioctl not handled by this layer */
-#define	EDIRIOCTL	(-4)		/* do direct ioctl in GEOM */
-#endif
-
-#endif
+#endif /* ERRNO_H */
diff --git a/include/lib/libc/limits.h b/include/lib/libc/limits.h
new file mode 100644
index 0000000..41bb658
--- /dev/null
+++ b/include/lib/libc/limits.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef LIMITS_H
+#define LIMITS_H
+
+#include <limits_.h>
+
+#define CHAR_BIT   8
+#define MB_LEN_MAX 1
+
+#endif /* LIMITS_H */
diff --git a/include/lib/libc/setjmp.h b/include/lib/libc/setjmp.h
new file mode 100644
index 0000000..5661201
--- /dev/null
+++ b/include/lib/libc/setjmp.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SETJMP_H
+#define SETJMP_H
+
+#include <setjmp_.h>
+
+#ifndef __ASSEMBLY__
+
+#include <cdefs.h>
+
+int setjmp(jmp_buf env);
+__dead2 void longjmp(jmp_buf env, int val);
+
+#endif /* __ASSEMBLY__ */
+#endif /* SETJMP_H */
diff --git a/include/lib/libc/stdarg.h b/include/lib/libc/stdarg.h
new file mode 100644
index 0000000..e260b9b
--- /dev/null
+++ b/include/lib/libc/stdarg.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDARG_H
+#define STDARG_H
+
+#define va_list __builtin_va_list
+#define va_start(ap, last) __builtin_va_start(ap, last)
+#define va_end(ap) __builtin_va_end(ap)
+#define va_copy(to, from) __builtin_va_copy(to, from)
+#define va_arg(to, type) __builtin_va_arg(to, type)
+
+#endif /* STDARG_H */
diff --git a/include/lib/stdlib/stdbool.h b/include/lib/libc/stdbool.h
similarity index 100%
rename from include/lib/stdlib/stdbool.h
rename to include/lib/libc/stdbool.h
diff --git a/include/lib/libc/stddef.h b/include/lib/libc/stddef.h
new file mode 100644
index 0000000..c9957bd
--- /dev/null
+++ b/include/lib/libc/stddef.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDDEF_H
+#define STDDEF_H
+
+#include <stddef_.h>
+
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
+
+#define offsetof(st, m) __builtin_offsetof(st, m)
+
+#endif /* STDDEF_H */
diff --git a/include/lib/libc/stdint.h b/include/lib/libc/stdint.h
new file mode 100644
index 0000000..d44a973
--- /dev/null
+++ b/include/lib/libc/stdint.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDINT_H
+#define STDINT_H
+
+#include <stdint_.h>
+
+#endif /* STDINT_H */
diff --git a/include/lib/libc/stdio.h b/include/lib/libc/stdio.h
new file mode 100644
index 0000000..feb036e
--- /dev/null
+++ b/include/lib/libc/stdio.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDIO_H
+#define STDIO_H
+
+#include <cdefs.h>
+#include <stdio_.h>
+
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
+
+#define EOF            -1
+
+int printf(const char *fmt, ...) __printflike(1, 2);
+int snprintf(char *s, size_t n, const char *fmt, ...) __printflike(3, 4);
+
+#ifdef STDARG_H
+int vprintf(const char *fmt, va_list args) __printflike(1, 0);
+int vsnprintf(char *str, size_t size, const char *format, va_list ap) __printflike(3, 0);
+#endif
+
+int putchar(int c);
+int puts(const char *s);
+
+#endif /* STDIO_H */
diff --git a/include/lib/libc/stdlib.h b/include/lib/libc/stdlib.h
new file mode 100644
index 0000000..0ef077f
--- /dev/null
+++ b/include/lib/libc/stdlib.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDLIB_H
+#define STDLIB_H
+
+#include <stdlib_.h>
+
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
+
+#define _ATEXIT_MAX 1
+
+#define	RAND_MAX	0x7ffffffd
+
+extern void abort(void);
+extern int atexit(void (*func)(void));
+extern void exit(int status);
+
+int rand(void);
+void srand(unsigned int seed);
+
+#endif /* STDLIB_H */
diff --git a/include/lib/libc/string.h b/include/lib/libc/string.h
new file mode 100644
index 0000000..21fd084
--- /dev/null
+++ b/include/lib/libc/string.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STRING_H
+#define STRING_H
+
+#include <string_.h>
+
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
+
+void *memcpy(void *dst, const void *src, size_t len);
+void *memmove(void *dst, const void *src, size_t len);
+int memcmp(const void *s1, const void *s2, size_t len);
+int strcmp(const char *s1, const char *s2);
+int strncmp(const char *s1, const char *s2, size_t n);
+void *memchr(const void *src, int c, size_t len);
+char *strchr(const char *s, int c);
+void *memset(void *dst, int val, size_t count);
+size_t strlen(const char *s);
+size_t strnlen(const char *s, size_t maxlen);
+char *strrchr(const char *p, int ch);
+size_t strlcpy(char * dst, const char * src, size_t dsize);
+char *strncpy(char *dst, const char *src, size_t n);
+
+#endif /* STRING_H */
diff --git a/include/lib/libc/time.h b/include/lib/libc/time.h
new file mode 100644
index 0000000..71d3e7e
--- /dev/null
+++ b/include/lib/libc/time.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef TIME_H
+#define TIME_H
+
+#include <time_.h>
+
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
+
+#endif /* TIME_H */
diff --git a/include/lib/stdlib/sys/uuid.h b/include/lib/libc/uuid.h
similarity index 97%
rename from include/lib/stdlib/sys/uuid.h
rename to include/lib/libc/uuid.h
index 934fb4f..bdefb91 100644
--- a/include/lib/stdlib/sys/uuid.h
+++ b/include/lib/libc/uuid.h
@@ -34,8 +34,8 @@
 #ifndef _SYS_UUID_H_
 #define _SYS_UUID_H_
 
-#include <sys/cdefs.h>
-#include <sys/_stdint.h>
+#include <cdefs.h>
+#include <stdint.h>
 
 /* Length of a node address (an IEEE 802 address). */
 #define	_UUID_NODE_LEN		6
diff --git a/include/lib/power_management.h b/include/lib/power_management.h
index d2d6901..3d8e961 100644
--- a/include/lib/power_management.h
+++ b/include/lib/power_management.h
@@ -11,7 +11,6 @@
 #include <psci.h>
 #include <spinlock.h>
 #include <stdint.h>
-#include <types.h>
 
 /* Set of states of an affinity node as seen by the Test Framework */
 typedef enum {
diff --git a/include/lib/stdlib/assert.h b/include/lib/stdlib/assert.h
deleted file mode 100644
index 1bcd1ea..0000000
--- a/include/lib/stdlib/assert.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- * (c) UNIX System Laboratories, Inc.
- * All or some portions of this file are derived from material licensed
- * to the University of California by American Telephone and Telegraph
- * Co. or Unix System Laboratories, Inc. and are reproduced herein with
- * the permission of UNIX System Laboratories, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)assert.h	8.2 (Berkeley) 1/21/94
- * $FreeBSD$
- */
-/*
- * Portions copyright (c) 2017, ARM Limited and Contributors.
- * All rights reserved.
- */
-
-#ifndef _ASSERT_H_
-#define _ASSERT_H_
-
-#include <sys/cdefs.h>
-
-#if ENABLE_ASSERTIONS
-#define	_assert(e)	assert(e)
-#define	assert(e)	((e) ? (void)0 : __assert(__func__, __FILE__, \
-			    __LINE__, #e))
-#else
-#define	assert(e)	((void)0)
-#define	_assert(e)	((void)0)
-#endif /* ENABLE_ASSERTIONS */
-
-__BEGIN_DECLS
-void __assert(const char *, const char *, int, const char *) __dead2;
-__END_DECLS
-
-#endif /* !_ASSERT_H_ */
diff --git a/include/lib/stdlib/machine/_limits.h b/include/lib/stdlib/machine/_limits.h
deleted file mode 100644
index bf94886..0000000
--- a/include/lib/stdlib/machine/_limits.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifdef AARCH64
-# include <machine/aarch64/_limits.h>
-#else /* AARCH32 */
-# include <machine/aarch32/_limits.h>
-#endif
diff --git a/include/lib/stdlib/machine/_stdint.h b/include/lib/stdlib/machine/_stdint.h
deleted file mode 100644
index d8f38ff..0000000
--- a/include/lib/stdlib/machine/_stdint.h
+++ /dev/null
@@ -1,192 +0,0 @@
-/*-
- * Copyright (c) 2001, 2002 Mike Barcroft <mike@FreeBSD.org>
- * Copyright (c) 2001 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Klaus Klein.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-/*
- * Portions copyright (c) 2016, ARM Limited and Contributors.
- * All rights reserved.
- */
-
-#ifndef	_MACHINE__STDINT_H_
-#define	_MACHINE__STDINT_H_
-
-#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS)
-
-#define	INT8_C(c)		(c)
-#define	INT16_C(c)		(c)
-#define	INT32_C(c)		(c)
-#define	INT64_C(c)		(c ## LL)
-
-#define	UINT8_C(c)		(c)
-#define	UINT16_C(c)		(c)
-#define	UINT32_C(c)		(c ## U)
-#define	UINT64_C(c)		(c ## ULL)
-
-#define	INTMAX_C(c)		INT64_C(c)
-#define	UINTMAX_C(c)		UINT64_C(c)
-
-#endif /* !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) */
-
-#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS)
-
-/*
- * ISO/IEC 9899:1999
- * 7.18.2.1 Limits of exact-width integer types
- */
-/* Minimum values of exact-width signed integer types. */
-#define	INT8_MIN	(-0x7f-1)
-#define	INT16_MIN	(-0x7fff-1)
-#define	INT32_MIN	(-0x7fffffff-1)
-#define	INT64_MIN	(-0x7fffffffffffffffLL-1)
-
-/* Maximum values of exact-width signed integer types. */
-#define	INT8_MAX	0x7f
-#define	INT16_MAX	0x7fff
-#define	INT32_MAX	0x7fffffff
-#define	INT64_MAX	0x7fffffffffffffffLL
-
-/* Maximum values of exact-width unsigned integer types. */
-#define	UINT8_MAX	0xff
-#define	UINT16_MAX	0xffff
-#define	UINT32_MAX	0xffffffffU
-#define	UINT64_MAX	0xffffffffffffffffULL
-
-/*
- * ISO/IEC 9899:1999
- * 7.18.2.2  Limits of minimum-width integer types
- */
-/* Minimum values of minimum-width signed integer types. */
-#define	INT_LEAST8_MIN	INT8_MIN
-#define	INT_LEAST16_MIN	INT16_MIN
-#define	INT_LEAST32_MIN	INT32_MIN
-#define	INT_LEAST64_MIN	INT64_MIN
-
-/* Maximum values of minimum-width signed integer types. */
-#define	INT_LEAST8_MAX	INT8_MAX
-#define	INT_LEAST16_MAX	INT16_MAX
-#define	INT_LEAST32_MAX	INT32_MAX
-#define	INT_LEAST64_MAX	INT64_MAX
-
-/* Maximum values of minimum-width unsigned integer types. */
-#define	UINT_LEAST8_MAX	 UINT8_MAX
-#define	UINT_LEAST16_MAX UINT16_MAX
-#define	UINT_LEAST32_MAX UINT32_MAX
-#define	UINT_LEAST64_MAX UINT64_MAX
-
-/*
- * ISO/IEC 9899:1999
- * 7.18.2.3  Limits of fastest minimum-width integer types
- */
-/* Minimum values of fastest minimum-width signed integer types. */
-#define	INT_FAST8_MIN	INT32_MIN
-#define	INT_FAST16_MIN	INT32_MIN
-#define	INT_FAST32_MIN	INT32_MIN
-#define	INT_FAST64_MIN	INT64_MIN
-
-/* Maximum values of fastest minimum-width signed integer types. */
-#define	INT_FAST8_MAX	INT32_MAX
-#define	INT_FAST16_MAX	INT32_MAX
-#define	INT_FAST32_MAX	INT32_MAX
-#define	INT_FAST64_MAX	INT64_MAX
-
-/* Maximum values of fastest minimum-width unsigned integer types. */
-#define	UINT_FAST8_MAX	UINT32_MAX
-#define	UINT_FAST16_MAX	UINT32_MAX
-#define	UINT_FAST32_MAX	UINT32_MAX
-#define	UINT_FAST64_MAX	UINT64_MAX
-/*
- * ISO/IEC 9899:1999
- * 7.18.2.5  Limits of greatest-width integer types
- */
-#define	INTMAX_MIN	INT64_MIN
-#define	INTMAX_MAX	INT64_MAX
-#define	UINTMAX_MAX	UINT64_MAX
-
-#ifdef AARCH64
-/*
- * ISO/IEC 9899:1999
- * 7.18.2.4  Limits of integer types capable of holding object pointers
- */
-#define	INTPTR_MIN	INT64_MIN
-#define	INTPTR_MAX	INT64_MAX
-#define	UINTPTR_MAX	UINT64_MAX
-
-/*
- * ISO/IEC 9899:1999
- * 7.18.3  Limits of other integer types
- */
-/* Limits of ptrdiff_t. */
-#define	PTRDIFF_MIN	INT64_MIN
-#define	PTRDIFF_MAX	INT64_MAX
-
-/* Limit of size_t. */
-#define	SIZE_MAX	UINT64_MAX
-
-#else /* AARCH32 */
-/*
- * ISO/IEC 9899:1999
- * 7.18.2.4  Limits of integer types capable of holding object pointers
- */
-#define	INTPTR_MIN	INT32_MIN
-#define	INTPTR_MAX	INT32_MAX
-#define	UINTPTR_MAX	UINT32_MAX
-
-/*
- * ISO/IEC 9899:1999
- * 7.18.3  Limits of other integer types
- */
-/* Limits of ptrdiff_t. */
-#define	PTRDIFF_MIN	INT32_MIN
-#define	PTRDIFF_MAX	INT32_MAX
-
-/* Limit of size_t. */
-#define	SIZE_MAX	UINT32_MAX
-
-#endif /* AARCH64 */
-
-
-/* Limits of sig_atomic_t. */
-#define	SIG_ATOMIC_MIN	INT32_MIN
-#define	SIG_ATOMIC_MAX	INT32_MAX
-
-#ifndef WCHAR_MIN /* Also possibly defined in <wchar.h> */
-/* Limits of wchar_t. */
-#define	WCHAR_MIN	INT32_MIN
-#define	WCHAR_MAX	INT32_MAX
-#endif
-
-/* Limits of wint_t. */
-#define	WINT_MIN	INT32_MIN
-#define	WINT_MAX	INT32_MAX
-
-#endif /* !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) */
-
-#endif /* !_MACHINE__STDINT_H_ */
diff --git a/include/lib/stdlib/machine/_types.h b/include/lib/stdlib/machine/_types.h
deleted file mode 100644
index 037fdf2..0000000
--- a/include/lib/stdlib/machine/_types.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/*-
- * Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
- * Copyright (c) 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	From: @(#)ansi.h	8.2 (Berkeley) 1/4/94
- *	From: @(#)types.h	8.3 (Berkeley) 1/5/94
- * $FreeBSD$
- */
-/*
- * Portions copyright (c) 2016, ARM Limited and Contributors.
- * All rights reserved.
- */
-
-#ifndef _MACHINE__TYPES_H_
-#define	_MACHINE__TYPES_H_
-
-#ifndef _SYS_CDEFS_H_
-#error this file needs sys/cdefs.h as a prerequisite
-#endif
-
-/*
- * Basic types upon which most other types are built.
- */
-typedef	__signed char		__int8_t;
-typedef	unsigned char		__uint8_t;
-typedef	short			__int16_t;
-typedef	unsigned short		__uint16_t;
-typedef	int			__int32_t;
-typedef	unsigned int		__uint32_t;
-typedef	long long		__int64_t;
-typedef	unsigned long long	__uint64_t;
-
-/*
- * Standard type definitions.
- */
-typedef	__int32_t	__clock_t;		/* clock()... */
-typedef	long		__critical_t;
-typedef	double		__double_t;
-typedef	float		__float_t;
-typedef	long		__intfptr_t;
-typedef	__int64_t	__intmax_t;
-typedef	long		__intptr_t;
-typedef	__int32_t	__int_fast8_t;
-typedef	__int32_t	__int_fast16_t;
-typedef	__int32_t	__int_fast32_t;
-typedef	__int64_t	__int_fast64_t;
-typedef	__int8_t	__int_least8_t;
-typedef	__int16_t	__int_least16_t;
-typedef	__int32_t	__int_least32_t;
-typedef	__int64_t	__int_least64_t;
-typedef	long		__ptrdiff_t;		/* ptr1 - ptr2 */
-typedef	long		__register_t;
-typedef	long		__segsz_t;		/* segment size (in pages) */
-#ifdef	AARCH32
-typedef	unsigned int	__size_t;		/* sizeof() */
-typedef	int		__ssize_t;		/* byte count or error */
-#elif defined AARCH64
-typedef	unsigned long	__size_t;		/* sizeof() */
-typedef	long		__ssize_t;		/* byte count or error */
-#else
-#error "Only AArch32 or AArch64 supported"
-#endif /* AARCH32 */
-typedef	__int64_t	__time_t;		/* time()... */
-typedef	unsigned long	__uintfptr_t;
-typedef	__uint64_t	__uintmax_t;
-typedef	unsigned long	__uintptr_t;
-typedef	__uint32_t	__uint_fast8_t;
-typedef	__uint32_t	__uint_fast16_t;
-typedef	__uint32_t	__uint_fast32_t;
-typedef	__uint64_t	__uint_fast64_t;
-typedef	__uint8_t	__uint_least8_t;
-typedef	__uint16_t	__uint_least16_t;
-typedef	__uint32_t	__uint_least32_t;
-typedef	__uint64_t	__uint_least64_t;
-typedef	unsigned long	__u_register_t;
-typedef	unsigned long	__vm_offset_t;
-typedef	__int64_t	__vm_ooffset_t;
-typedef	unsigned long	__vm_paddr_t;
-typedef	__uint64_t	__vm_pindex_t;
-typedef	unsigned long	__vm_size_t;
-
-/*
- * Unusual type definitions.
- */
-#ifdef __GNUCLIKE_BUILTIN_VARARGS
-typedef __builtin_va_list	__va_list;	/* internally known to gcc */
-#else
-typedef	char *			__va_list;
-#endif /* __GNUCLIKE_BUILTIN_VARARGS */
-#if defined(__GNUCLIKE_BUILTIN_VAALIST) && !defined(__GNUC_VA_LIST) \
-    && !defined(__NO_GNUC_VA_LIST)
-#define __GNUC_VA_LIST
-typedef __va_list		__gnuc_va_list;	/* compatibility w/GNU headers*/
-#endif
-
-#endif /* !_MACHINE__TYPES_H_ */
diff --git a/include/lib/stdlib/machine/aarch32/_limits.h b/include/lib/stdlib/machine/aarch32/_limits.h
deleted file mode 100644
index fe816e5..0000000
--- a/include/lib/stdlib/machine/aarch32/_limits.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)limits.h	8.3 (Berkeley) 1/4/94
- * $FreeBSD$
- */
-
-#ifndef _MACHINE__LIMITS_H_
-#define	_MACHINE__LIMITS_H_
-
-/*
- * According to ANSI (section 2.2.4.2), the values below must be usable by
- * #if preprocessing directives.  Additionally, the expression must have the
- * same type as would an expression that is an object of the corresponding
- * type converted according to the integral promotions.  The subtraction for
- * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
- * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
- */
-
-#define	__CHAR_BIT	8		/* number of bits in a char */
-
-#define	__SCHAR_MAX	0x7f		/* max value for a signed char */
-#define	__SCHAR_MIN	(-0x7f - 1)	/* min value for a signed char */
-
-#define	__UCHAR_MAX	0xff		/* max value for an unsigned char */
-
-#define	__USHRT_MAX	0xffff		/* max value for an unsigned short */
-#define	__SHRT_MAX	0x7fff		/* max value for a short */
-#define	__SHRT_MIN	(-0x7fff - 1)	/* min value for a short */
-
-#define	__UINT_MAX	0xffffffff	/* max value for an unsigned int */
-#define	__INT_MAX	0x7fffffff	/* max value for an int */
-#define	__INT_MIN	(-0x7fffffff - 1)	/* min value for an int */
-
-#define	__ULONG_MAX	0xffffffffUL	/* max value for an unsigned long */
-#define	__LONG_MAX	0x7fffffffL	/* max value for a long */
-#define	__LONG_MIN	(-0x7fffffffL - 1)	/* min value for a long */
-
-			/* max value for an unsigned long long */
-#define	__ULLONG_MAX	0xffffffffffffffffULL
-#define	__LLONG_MAX	0x7fffffffffffffffLL	/* max value for a long long */
-#define	__LLONG_MIN	(-0x7fffffffffffffffLL - 1)  /* min for a long long */
-
-#define	__SSIZE_MAX	__INT_MAX	/* max value for a ssize_t */
-
-#define	__SIZE_T_MAX	__UINT_MAX	/* max value for a size_t */
-
-#define	__OFF_MAX	__LLONG_MAX	/* max value for a off_t */
-#define	__OFF_MIN	__LLONG_MIN	/* min value for a off_t */
-
-/* Quads and long longs are the same size.  Ensure they stay in sync. */
-#define	__UQUAD_MAX	__ULLONG_MAX	/* max value for a uquad_t */
-#define	__QUAD_MAX	__LLONG_MAX	/* max value for a quad_t */
-#define	__QUAD_MIN	__LLONG_MIN	/* min value for a quad_t */
-
-#define	__LONG_BIT	32
-#define	__WORD_BIT	32
-
-/* Minimum signal stack size. */
-#define	__MINSIGSTKSZ	(1024 * 4)
-
-#endif /* !_MACHINE__LIMITS_H_ */
diff --git a/include/lib/stdlib/machine/aarch64/_limits.h b/include/lib/stdlib/machine/aarch64/_limits.h
deleted file mode 100644
index 39f0bcf..0000000
--- a/include/lib/stdlib/machine/aarch64/_limits.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/*-
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)limits.h	8.3 (Berkeley) 1/4/94
- * $FreeBSD$
- */
-
-#ifndef _MACHINE__LIMITS_H_
-#define	_MACHINE__LIMITS_H_
-
-/*
- * According to ANSI (section 2.2.4.2), the values below must be usable by
- * #if preprocessing directives.  Additionally, the expression must have the
- * same type as would an expression that is an object of the corresponding
- * type converted according to the integral promotions.  The subtraction for
- * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
- * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
- */
-
-#define	__CHAR_BIT	8		/* number of bits in a char */
-
-#define	__SCHAR_MAX	0x7f		/* max value for a signed char */
-#define	__SCHAR_MIN	(-0x7f - 1)	/* min value for a signed char */
-
-#define	__UCHAR_MAX	0xff		/* max value for an unsigned char */
-
-#define	__USHRT_MAX	0xffff		/* max value for an unsigned short */
-#define	__SHRT_MAX	0x7fff		/* max value for a short */
-#define	__SHRT_MIN	(-0x7fff - 1)	/* min value for a short */
-
-#define	__UINT_MAX	0xffffffff	/* max value for an unsigned int */
-#define	__INT_MAX	0x7fffffff	/* max value for an int */
-#define	__INT_MIN	(-0x7fffffff - 1)	/* min value for an int */
-
-#define	__ULONG_MAX	0xffffffffffffffffUL	/* max for an unsigned long */
-#define	__LONG_MAX	0x7fffffffffffffffL	/* max for a long */
-#define	__LONG_MIN	(-0x7fffffffffffffffL - 1) /* min for a long */
-
-/* Long longs have the same size but not the same type as longs. */
-			/* max for an unsigned long long */
-#define	__ULLONG_MAX	0xffffffffffffffffULL
-#define	__LLONG_MAX	0x7fffffffffffffffLL	/* max for a long long */
-#define	__LLONG_MIN	(-0x7fffffffffffffffLL - 1) /* min for a long long */
-
-#define	__SSIZE_MAX	__LONG_MAX	/* max value for a ssize_t */
-
-#define	__SIZE_T_MAX	__ULONG_MAX	/* max value for a size_t */
-
-#define	__OFF_MAX	__LONG_MAX	/* max value for an off_t */
-#define	__OFF_MIN	__LONG_MIN	/* min value for an off_t */
-
-/* Quads and longs are the same size.  Ensure they stay in sync. */
-#define	__UQUAD_MAX	(__ULONG_MAX)	/* max value for a uquad_t */
-#define	__QUAD_MAX	(__LONG_MAX)	/* max value for a quad_t */
-#define	__QUAD_MIN	(__LONG_MIN)	/* min value for a quad_t */
-
-#define	__LONG_BIT	64
-#define	__WORD_BIT	32
-
-/* Minimum signal stack size. */
-#define	__MINSIGSTKSZ	(1024 * 4)
-
-#endif /* !_MACHINE__LIMITS_H_ */
diff --git a/include/lib/stdlib/stddef.h b/include/lib/stdlib/stddef.h
deleted file mode 100644
index ea88214..0000000
--- a/include/lib/stdlib/stddef.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*-
- * Copyright (c) 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)stddef.h	8.1 (Berkeley) 6/2/93
- *
- * $FreeBSD$
- */
-
-#ifndef _STDDEF_H_
-#define _STDDEF_H_
-
-#include <sys/cdefs.h>
-#include <sys/_null.h>
-#include <sys/_types.h>
-
-typedef	__ptrdiff_t	ptrdiff_t;
-
-#if __BSD_VISIBLE
-#ifndef _RUNE_T_DECLARED
-typedef	__rune_t	rune_t;
-#define	_RUNE_T_DECLARED
-#endif
-#endif
-
-#ifndef _SIZE_T_DECLARED
-typedef	__size_t	size_t;
-#define	_SIZE_T_DECLARED
-#endif
-
-#ifndef	__cplusplus
-#ifndef _WCHAR_T_DECLARED
-typedef	__wchar_t	wchar_t;
-#define	_WCHAR_T_DECLARED
-#endif
-#endif
-
-#define	offsetof(type, member)	__offsetof(type, member)
-
-#endif /* _STDDEF_H_ */
diff --git a/include/lib/stdlib/stdio.h b/include/lib/stdlib/stdio.h
deleted file mode 100644
index 55d8fe2..0000000
--- a/include/lib/stdlib/stdio.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*-
- * Copyright (c) 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)stdio.h	8.5 (Berkeley) 4/29/95
- * $FreeBSD$
- */
-
-/*
- * Portions copyright (c) 2013-2014, ARM Limited and Contributors.
- * All rights reserved.
- */
-
-
-#ifndef	_STDIO_H_
-#define	_STDIO_H_
-
-#include <sys/cdefs.h>
-#include <sys/_null.h>
-#include <sys/_types.h>
-
-#ifndef _SIZE_T_DECLARED
-typedef	__size_t	size_t;
-#define	_SIZE_T_DECLARED
-#endif
-
-#ifndef _SSIZE_T_DECLARED
-#define	_SSIZE_T_DECLARED
-typedef	__ssize_t	ssize_t;
-#endif
-
-#define	EOF	(-1)
-
-int	 printf(const char * __restrict, ...) __printflike(1, 2);
-int	 vprintf(const char * __restrict, __va_list);
-
-int	 putchar(int);
-int	 puts(const char *);
-int	 sprintf(char * __restrict, const char * __restrict, ...)
-	__printflike(2, 3);
-int	 vsprintf(char * __restrict, const char * __restrict,
-	   __va_list) __printflike(2, 0);
-
-#if __ISO_C_VISIBLE >= 1999
-int	 snprintf(char * __restrict, size_t, const char * __restrict,
-	   ...) __printflike(3, 4);
-int	 vsnprintf(char * __restrict, size_t, const char * __restrict,
-	   __va_list) __printflike(3, 0);
-#endif
-
-#endif /* !_STDIO_H_ */
diff --git a/include/lib/stdlib/stdlib.h b/include/lib/stdlib/stdlib.h
deleted file mode 100644
index c02532f..0000000
--- a/include/lib/stdlib/stdlib.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*-
- * Copyright (c) 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)stdlib.h	8.5 (Berkeley) 5/19/95
- * $FreeBSD$
- */
-
-/*
- * Portions copyright (c) 2014, ARM Limited and Contributors.
- * All rights reserved.
- */
-
-#ifndef _STDLIB_H_
-#define	_STDLIB_H_
-
-#include <sys/cdefs.h>
-#include <sys/_null.h>
-#include <sys/_types.h>
-
-#define	RAND_MAX	0x7ffffffd
-
-__BEGIN_DECLS
-
-int	 rand(void);
-void	 srand(unsigned);
-
-__END_DECLS
-
-#endif /* !_STDLIB_H_ */
diff --git a/include/lib/stdlib/string.h b/include/lib/stdlib/string.h
deleted file mode 100644
index 5d30467..0000000
--- a/include/lib/stdlib/string.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*-
- * Copyright (c) 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)string.h	8.1 (Berkeley) 6/2/93
- * $FreeBSD$
- */
-
-/*
- * Portions copyright (c) 2013-2014, ARM Limited and Contributors.
- * All rights reserved.
- */
-
-#ifndef _STRING_H_
-#define	_STRING_H_
-
-#include <sys/cdefs.h>
-#include <sys/_null.h>
-#include <sys/_types.h>
-
-#ifndef _SIZE_T_DECLARED
-typedef	__size_t	size_t;
-#define	_SIZE_T_DECLARED
-#endif
-
-__BEGIN_DECLS
-
-void	*memchr(const void *, int, size_t) __pure;
-int	 memcmp(const void *, const void *, size_t) __pure;
-void	*memcpy(void * __restrict, const void * __restrict, size_t);
-void	*memmove(void *, const void *, size_t);
-void	*memset(void *, int, size_t);
-
-char	*strchr(const char *, int) __pure;
-int	 strcmp(const char *, const char *) __pure;
-size_t	 strlen(const char *) __pure;
-int	 strncmp(const char *, const char *, size_t) __pure;
-char	*strncpy(char * __restrict, const char * __restrict, size_t);
-
-__END_DECLS
-
-#endif /* _STRING_H_ */
diff --git a/include/lib/stdlib/sys/_null.h b/include/lib/stdlib/sys/_null.h
deleted file mode 100644
index 92706c6..0000000
--- a/include/lib/stdlib/sys/_null.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*-
- * Copyright (c) 2003 Marcel Moolenaar
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#ifndef NULL
-
-#if !defined(__cplusplus)
-#define	NULL	((void *)0)
-#else
-#if __cplusplus >= 201103L
-#define	NULL	nullptr
-#elif defined(__GNUG__) && defined(__GNUC__) && __GNUC__ >= 4
-#define	NULL	__null
-#else
-#if defined(__LP64__)
-#define	NULL	(0L)
-#else
-#define	NULL	0
-#endif	/* __LP64__ */
-#endif	/* __GNUG__ */
-#endif	/* !__cplusplus */
-
-#endif
diff --git a/include/lib/stdlib/sys/_stdint.h b/include/lib/stdlib/sys/_stdint.h
deleted file mode 100644
index d0f9249..0000000
--- a/include/lib/stdlib/sys/_stdint.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*-
- * Copyright (c) 2011 David E. O'Brien <obrien@FreeBSD.org>
- * Copyright (c) 2001 Mike Barcroft <mike@FreeBSD.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#ifndef _SYS__STDINT_H_
-#define _SYS__STDINT_H_
-
-#ifndef _INT8_T_DECLARED
-typedef	__int8_t		int8_t;
-#define	_INT8_T_DECLARED
-#endif
-
-#ifndef _INT16_T_DECLARED
-typedef	__int16_t		int16_t;
-#define	_INT16_T_DECLARED
-#endif
-
-#ifndef _INT32_T_DECLARED
-typedef	__int32_t		int32_t;
-#define	_INT32_T_DECLARED
-#endif
-
-#ifndef _INT64_T_DECLARED
-typedef	__int64_t		int64_t;
-#define	_INT64_T_DECLARED
-#endif
-
-#ifndef _UINT8_T_DECLARED
-typedef	__uint8_t		uint8_t;
-#define	_UINT8_T_DECLARED
-#endif
-
-#ifndef _UINT16_T_DECLARED
-typedef	__uint16_t		uint16_t;
-#define	_UINT16_T_DECLARED
-#endif
-
-#ifndef _UINT32_T_DECLARED
-typedef	__uint32_t		uint32_t;
-#define	_UINT32_T_DECLARED
-#endif
-
-#ifndef _UINT64_T_DECLARED
-typedef	__uint64_t		uint64_t;
-#define	_UINT64_T_DECLARED
-#endif
-
-#ifndef _INTPTR_T_DECLARED
-typedef	__intptr_t		intptr_t;
-#define	_INTPTR_T_DECLARED
-#endif
-#ifndef _UINTPTR_T_DECLARED
-typedef	__uintptr_t		uintptr_t;
-#define	_UINTPTR_T_DECLARED
-#endif
-
-#endif /* !_SYS__STDINT_H_ */
diff --git a/include/lib/stdlib/sys/_types.h b/include/lib/stdlib/sys/_types.h
deleted file mode 100644
index c59afd3..0000000
--- a/include/lib/stdlib/sys/_types.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/*-
- * Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#ifndef _SYS__TYPES_H_
-#define _SYS__TYPES_H_
-
-#include <sys/cdefs.h>
-#include <machine/_types.h>
-
-/*
- * Standard type definitions.
- */
-typedef	__uint32_t	__blksize_t;	/* file block size */
-typedef	__int64_t	__blkcnt_t;	/* file block count */
-typedef	__int32_t	__clockid_t;	/* clock_gettime()... */
-typedef	__uint64_t	__cap_rights_t;	/* capability rights */
-typedef	__uint32_t	__fflags_t;	/* file flags */
-typedef	__uint64_t	__fsblkcnt_t;
-typedef	__uint64_t	__fsfilcnt_t;
-typedef	__uint32_t	__gid_t;
-typedef	__int64_t	__id_t;		/* can hold a gid_t, pid_t, or uid_t */
-typedef	__uint32_t	__ino_t;	/* inode number */
-typedef	long		__key_t;	/* IPC key (for Sys V IPC) */
-typedef	__int32_t	__lwpid_t;	/* Thread ID (a.k.a. LWP) */
-typedef	__uint16_t	__mode_t;	/* permissions */
-typedef	int		__accmode_t;	/* access permissions */
-typedef	int		__nl_item;
-typedef	__uint16_t	__nlink_t;	/* link count */
-typedef	__int64_t	__off_t;	/* file offset */
-typedef	__int32_t	__pid_t;	/* process [group] */
-typedef	__int64_t	__rlim_t;	/* resource limit - intentionally */
-					/* signed, because of legacy code */
-					/* that uses -1 for RLIM_INFINITY */
-typedef	__uint8_t	__sa_family_t;
-typedef	__uint32_t	__socklen_t;
-typedef	long		__suseconds_t;	/* microseconds (signed) */
-typedef	struct __timer	*__timer_t;	/* timer_gettime()... */
-typedef	struct __mq	*__mqd_t;	/* mq_open()... */
-typedef	__uint32_t	__uid_t;
-typedef	unsigned int	__useconds_t;	/* microseconds (unsigned) */
-typedef	int		__cpuwhich_t;	/* which parameter for cpuset. */
-typedef	int		__cpulevel_t;	/* level parameter for cpuset. */
-typedef int		__cpusetid_t;	/* cpuset identifier. */
-
-/*
- * Unusual type definitions.
- */
-/*
- * rune_t is declared to be an ``int'' instead of the more natural
- * ``unsigned long'' or ``long''.  Two things are happening here.  It is not
- * unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
- * it looks like 10646 will be a 31 bit standard.  This means that if your
- * ints cannot hold 32 bits, you will be in trouble.  The reason an int was
- * chosen over a long is that the is*() and to*() routines take ints (says
- * ANSI C), but they use __ct_rune_t instead of int.
- *
- * NOTE: rune_t is not covered by ANSI nor other standards, and should not
- * be instantiated outside of lib/libc/locale.  Use wchar_t.  wchar_t and
- * rune_t must be the same type.  Also, wint_t must be no narrower than
- * wchar_t, and should be able to hold all members of the largest
- * character set plus one extra value (WEOF), and must be at least 16 bits.
- */
-typedef	int		__ct_rune_t;	/* arg type for ctype funcs */
-typedef	__ct_rune_t	__rune_t;	/* rune_t (see above) */
-typedef	__ct_rune_t	__wchar_t;	/* wchar_t (see above) */
-typedef	__ct_rune_t	__wint_t;	/* wint_t (see above) */
-
-typedef	__uint32_t	__dev_t;	/* device number */
-
-typedef	__uint32_t	__fixpt_t;	/* fixed point number */
-
-/*
- * mbstate_t is an opaque object to keep conversion state during multibyte
- * stream conversions.
- */
-typedef union {
-	char		__mbstate8[128];
-	__int64_t	_mbstateL;	/* for alignment */
-} __mbstate_t;
-
-#endif /* !_SYS__TYPES_H_ */
diff --git a/include/lib/stdlib/sys/cdefs.h b/include/lib/stdlib/sys/cdefs.h
deleted file mode 100644
index 27f73fc..0000000
--- a/include/lib/stdlib/sys/cdefs.h
+++ /dev/null
@@ -1,689 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Berkeley Software Design, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
- * $FreeBSD$
- */
-
-#ifndef	_SYS_CDEFS_H_
-#define	_SYS_CDEFS_H_
-
-/* Defined here for compatibility with the Trusted Firmware source code */
-#define __init
-
-#if defined(__cplusplus)
-#define	__BEGIN_DECLS	extern "C" {
-#define	__END_DECLS	}
-#else
-#define	__BEGIN_DECLS
-#define	__END_DECLS
-#endif
-
-/*
- * This code has been put in place to help reduce the addition of
- * compiler specific defines in FreeBSD code.  It helps to aid in
- * having a compiler-agnostic source tree.
- */
-
-#if defined(__GNUC__) || defined(__INTEL_COMPILER)
-
-#if __GNUC__ >= 3 || defined(__INTEL_COMPILER)
-#define __GNUCLIKE_ASM 3
-#define __GNUCLIKE_MATH_BUILTIN_CONSTANTS
-#else
-#define __GNUCLIKE_ASM 2
-#endif
-#define __GNUCLIKE___TYPEOF 1
-#define __GNUCLIKE___OFFSETOF 1
-#define __GNUCLIKE___SECTION 1
-
-#ifndef __INTEL_COMPILER
-# define __GNUCLIKE_CTOR_SECTION_HANDLING 1
-#endif
-
-#define __GNUCLIKE_BUILTIN_CONSTANT_P 1
-# if defined(__INTEL_COMPILER) && defined(__cplusplus) \
-    && __INTEL_COMPILER < 800
-#  undef __GNUCLIKE_BUILTIN_CONSTANT_P
-# endif
-
-#if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) && !defined(__INTEL_COMPILER)
-# define __GNUCLIKE_BUILTIN_VARARGS 1
-# define __GNUCLIKE_BUILTIN_STDARG 1
-# define __GNUCLIKE_BUILTIN_VAALIST 1
-#endif
-
-#if defined(__GNUC__)
-# define __GNUC_VA_LIST_COMPATIBILITY 1
-#endif
-
-#ifndef __INTEL_COMPILER
-# define __GNUCLIKE_BUILTIN_NEXT_ARG 1
-# define __GNUCLIKE_MATH_BUILTIN_RELOPS
-#endif
-
-#define __GNUCLIKE_BUILTIN_MEMCPY 1
-
-/* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */
-#define __CC_SUPPORTS_INLINE 1
-#define __CC_SUPPORTS___INLINE 1
-#define __CC_SUPPORTS___INLINE__ 1
-
-#define __CC_SUPPORTS___FUNC__ 1
-#define __CC_SUPPORTS_WARNING 1
-
-#define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */
-
-#define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1
-
-#endif /* __GNUC__ || __INTEL_COMPILER */
-
-/*
- * Macro to test if we're using a specific version of gcc or later.
- */
-#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
-#define	__GNUC_PREREQ__(ma, mi)	\
-	(__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
-#else
-#define	__GNUC_PREREQ__(ma, mi)	0
-#endif
-
-/*
- * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
- * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
- * The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
- * mode -- there must be no spaces between its arguments, and for nested
- * __CONCAT's, all the __CONCAT's must be at the left.  __CONCAT can also
- * concatenate double-quoted strings produced by the __STRING macro, but
- * this only works with ANSI C.
- *
- * __XSTRING is like __STRING, but it expands any macros in its argument
- * first.  It is only available with ANSI C.
- */
-#if defined(__STDC__) || defined(__cplusplus)
-#define	__P(protos)	protos		/* full-blown ANSI C */
-#define	__CONCAT1(x,y)	x ## y
-#define	__CONCAT(x,y)	__CONCAT1(x,y)
-#define	__STRING(x)	#x		/* stringify without expanding x */
-#define	__XSTRING(x)	__STRING(x)	/* expand x, then stringify */
-
-#define	__const		const		/* define reserved names to standard */
-#define	__signed	signed
-#define	__volatile	volatile
-#if defined(__cplusplus)
-#define	__inline	inline		/* convert to C++ keyword */
-#else
-#if !(defined(__CC_SUPPORTS___INLINE))
-#define	__inline			/* delete GCC keyword */
-#endif /* ! __CC_SUPPORTS___INLINE */
-#endif /* !__cplusplus */
-
-#else	/* !(__STDC__ || __cplusplus) */
-#define	__P(protos)	()		/* traditional C preprocessor */
-#define	__CONCAT(x,y)	x/**/y
-#define	__STRING(x)	"x"
-
-#if !defined(__CC_SUPPORTS___INLINE)
-#define	__const				/* delete pseudo-ANSI C keywords */
-#define	__inline
-#define	__signed
-#define	__volatile
-/*
- * In non-ANSI C environments, new programs will want ANSI-only C keywords
- * deleted from the program and old programs will want them left alone.
- * When using a compiler other than gcc, programs using the ANSI C keywords
- * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
- * When using "gcc -traditional", we assume that this is the intent; if
- * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
- */
-#ifndef	NO_ANSI_KEYWORDS
-#define	const				/* delete ANSI C keywords */
-#define	inline
-#define	signed
-#define	volatile
-#endif	/* !NO_ANSI_KEYWORDS */
-#endif	/* !__CC_SUPPORTS___INLINE */
-#endif	/* !(__STDC__ || __cplusplus) */
-
-/*
- * Compiler-dependent macros to help declare dead (non-returning) and
- * pure (no side effects) functions, and unused variables.  They are
- * null except for versions of gcc that are known to support the features
- * properly (old versions of gcc-2 supported the dead and pure features
- * in a different (wrong) way).  If we do not provide an implementation
- * for a given compiler, let the compile fail if it is told to use
- * a feature that we cannot live without.
- */
-#ifdef lint
-#define	__dead2
-#define	__pure2
-#define	__unused
-#define	__packed
-#define	__aligned(x)
-#define	__section(x)
-#else
-#if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER)
-#define	__dead2
-#define	__pure2
-#define	__unused
-#endif
-#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER)
-#define	__dead2		__attribute__((__noreturn__))
-#define	__pure2		__attribute__((__const__))
-#define	__unused
-/* XXX Find out what to do for __packed, __aligned and __section */
-#endif
-#if __GNUC_PREREQ__(2, 7)
-#define	__dead2		__attribute__((__noreturn__))
-#define	__pure2		__attribute__((__const__))
-#define	__unused	__attribute__((__unused__))
-#define	__used		__attribute__((__used__))
-#define	__packed	__attribute__((__packed__))
-#define	__aligned(x)	__attribute__((__aligned__(x)))
-#define	__section(x)	__attribute__((__section__(x)))
-#endif
-#if defined(__INTEL_COMPILER)
-#define __dead2		__attribute__((__noreturn__))
-#define __pure2		__attribute__((__const__))
-#define __unused	__attribute__((__unused__))
-#define __used		__attribute__((__used__))
-#define __packed	__attribute__((__packed__))
-#define __aligned(x)	__attribute__((__aligned__(x)))
-#define __section(x)	__attribute__((__section__(x)))
-#endif
-#endif
-
-#if !__GNUC_PREREQ__(2, 95)
-#define	__alignof(x)	__offsetof(struct { char __a; x __b; }, __b)
-#endif
-
-/*
- * Keywords added in C11.
- */
-#if defined(__cplusplus) && __cplusplus >= 201103L
-#define	_Alignas(e)		alignas(e)
-#define	_Alignof(e)		alignof(e)
-#define	_Noreturn		[[noreturn]]
-#define	_Static_assert(e, s)	static_assert(e, s)
-/* FIXME: change this to thread_local when clang in base supports it */
-#define	_Thread_local		__thread
-#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
-/* Do nothing.  They are language keywords. */
-#else
-/* Not supported.  Implement them using our versions. */
-#define	_Alignas(x)		__aligned(x)
-#define	_Alignof(x)		__alignof(x)
-#define	_Noreturn		__dead2
-#define	_Thread_local		__thread
-#ifdef __COUNTER__
-#define	_Static_assert(x, y)	__Static_assert(x, __COUNTER__)
-#define	__Static_assert(x, y)	___Static_assert(x, y)
-#define	___Static_assert(x, y)	typedef char __assert_ ## y[(x) ? 1 : -1]
-#else
-#define	_Static_assert(x, y)	struct __hack
-#endif
-#endif
-
-/*
- * Emulation of C11 _Generic().  Unlike the previously defined C11
- * keywords, it is not possible to implement this using exactly the same
- * syntax.  Therefore implement something similar under the name
- * __generic().  Unlike _Generic(), this macro can only distinguish
- * between a single type, so it requires nested invocations to
- * distinguish multiple cases.
- */
-
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
-#define	__generic(expr, t, yes, no)					\
-	_Generic(expr, t: yes, default: no)
-#elif __GNUC_PREREQ__(3, 1) && !defined(__cplusplus)
-#define	__generic(expr, t, yes, no)					\
-	__builtin_choose_expr(						\
-	    __builtin_types_compatible_p(__typeof(expr), t), yes, no)
-#endif
-
-#if __GNUC_PREREQ__(2, 96)
-#define	__malloc_like	__attribute__((__malloc__))
-#define	__pure		__attribute__((__pure__))
-#else
-#define	__malloc_like
-#define	__pure
-#endif
-
-#if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800)
-#define	__always_inline	__attribute__((__always_inline__))
-#else
-#define	__always_inline
-#endif
-
-#if __GNUC_PREREQ__(3, 1)
-#define	__noinline	__attribute__ ((__noinline__))
-#else
-#define	__noinline
-#endif
-
-#if __GNUC_PREREQ__(3, 3)
-#define __nonnull(x)	__attribute__((__nonnull__(x)))
-#else
-#define __nonnull(x)
-#endif
-
-#if __GNUC_PREREQ__(3, 4)
-#define	__fastcall	__attribute__((__fastcall__))
-#else
-#define	__fastcall
-#endif
-
-#if __GNUC_PREREQ__(4, 1)
-#define	__returns_twice	__attribute__((__returns_twice__))
-#else
-#define	__returns_twice
-#endif
-
-/* XXX: should use `#if __STDC_VERSION__ < 199901'. */
-#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
-#define	__func__	NULL
-#endif
-
-#if (defined(__INTEL_COMPILER) || (defined(__GNUC__) && __GNUC__ >= 2)) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901
-#define	__LONG_LONG_SUPPORTED
-#endif
-
-/* C++11 exposes a load of C99 stuff */
-#if defined(__cplusplus) && __cplusplus >= 201103L
-#define	__LONG_LONG_SUPPORTED
-#ifndef	__STDC_LIMIT_MACROS
-#define	__STDC_LIMIT_MACROS
-#endif
-#ifndef	__STDC_CONSTANT_MACROS
-#define	__STDC_CONSTANT_MACROS
-#endif
-#endif
-
-/*
- * GCC 2.95 provides `__restrict' as an extension to C90 to support the
- * C99-specific `restrict' type qualifier.  We happen to use `__restrict' as
- * a way to define the `restrict' type qualifier without disturbing older
- * software that is unaware of C99 keywords.
- */
-#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
-#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901 || defined(lint)
-#define	__restrict
-#else
-#define	__restrict	restrict
-#endif
-#endif
-
-/*
- * GNU C version 2.96 adds explicit branch prediction so that
- * the CPU back-end can hint the processor and also so that
- * code blocks can be reordered such that the predicted path
- * sees a more linear flow, thus improving cache behavior, etc.
- *
- * The following two macros provide us with a way to utilize this
- * compiler feature.  Use __predict_true() if you expect the expression
- * to evaluate to true, and __predict_false() if you expect the
- * expression to evaluate to false.
- *
- * A few notes about usage:
- *
- *	* Generally, __predict_false() error condition checks (unless
- *	  you have some _strong_ reason to do otherwise, in which case
- *	  document it), and/or __predict_true() `no-error' condition
- *	  checks, assuming you want to optimize for the no-error case.
- *
- *	* Other than that, if you don't know the likelihood of a test
- *	  succeeding from empirical or other `hard' evidence, don't
- *	  make predictions.
- *
- *	* These are meant to be used in places that are run `a lot'.
- *	  It is wasteful to make predictions in code that is run
- *	  seldomly (e.g. at subsystem initialization time) as the
- *	  basic block reordering that this affects can often generate
- *	  larger code.
- */
-#if __GNUC_PREREQ__(2, 96)
-#define __predict_true(exp)     __builtin_expect((exp), 1)
-#define __predict_false(exp)    __builtin_expect((exp), 0)
-#else
-#define __predict_true(exp)     (exp)
-#define __predict_false(exp)    (exp)
-#endif
-
-#if __GNUC_PREREQ__(4, 2)
-#define	__hidden	__attribute__((__visibility__("hidden")))
-#define	__exported	__attribute__((__visibility__("default")))
-#else
-#define	__hidden
-#define	__exported
-#endif
-
-/*
- * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
- * require it.
- */
-#if __GNUC_PREREQ__(4, 1)
-#define __offsetof(type, field)	 __builtin_offsetof(type, field)
-#else
-#ifndef __cplusplus
-#define	__offsetof(type, field) \
-	((__size_t)(__uintptr_t)((const volatile void *)&((type *)0)->field))
-#else
-#define __offsetof(type, field)					\
-  (__offsetof__ (reinterpret_cast <__size_t>			\
-                 (&reinterpret_cast <const volatile char &>	\
-                  (static_cast<type *> (0)->field))))
-#endif
-#endif
-#define	__rangeof(type, start, end) \
-	(__offsetof(type, end) - __offsetof(type, start))
-
-/*
- * Given the pointer x to the member m of the struct s, return
- * a pointer to the containing structure.  When using GCC, we first
- * assign pointer x to a local variable, to check that its type is
- * compatible with member m.
- */
-#if __GNUC_PREREQ__(3, 1)
-#define	__containerof(x, s, m) ({					\
-	const volatile __typeof(((s *)0)->m) *__x = (x);		\
-	__DEQUALIFY(s *, (const volatile char *)__x - __offsetof(s, m));\
-})
-#else
-#define	__containerof(x, s, m)						\
-	__DEQUALIFY(s *, (const volatile char *)(x) - __offsetof(s, m))
-#endif
-
-/*
- * Compiler-dependent macros to declare that functions take printf-like
- * or scanf-like arguments.  They are null except for versions of gcc
- * that are known to support the features properly (old versions of gcc-2
- * didn't permit keeping the keywords out of the application namespace).
- */
-#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
-#define	__printflike(fmtarg, firstvararg)
-#define	__scanflike(fmtarg, firstvararg)
-#define	__format_arg(fmtarg)
-#define	__strfmonlike(fmtarg, firstvararg)
-#define	__strftimelike(fmtarg, firstvararg)
-#else
-#define	__printflike(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
-#define	__scanflike(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
-#define	__format_arg(fmtarg)	__attribute__((__format_arg__ (fmtarg)))
-#define	__strfmonlike(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__strfmon__, fmtarg, firstvararg)))
-#define	__strftimelike(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__strftime__, fmtarg, firstvararg)))
-#endif
-
-/* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
-#if __FreeBSD_cc_version >= 300001 && defined(__GNUC__) && !defined(__INTEL_COMPILER)
-#define	__printf0like(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
-#else
-#define	__printf0like(fmtarg, firstvararg)
-#endif
-
-#if defined(__GNUC__) || defined(__INTEL_COMPILER)
-#ifndef __INTEL_COMPILER
-#define	__strong_reference(sym,aliassym)	\
-	extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
-#endif
-#ifdef __STDC__
-#define	__weak_reference(sym,alias)	\
-	__asm__(".weak " #alias);	\
-	__asm__(".equ "  #alias ", " #sym)
-#define	__warn_references(sym,msg)	\
-	__asm__(".section .gnu.warning." #sym);	\
-	__asm__(".asciz \"" msg "\"");	\
-	__asm__(".previous")
-#define	__sym_compat(sym,impl,verid)	\
-	__asm__(".symver " #impl ", " #sym "@" #verid)
-#define	__sym_default(sym,impl,verid)	\
-	__asm__(".symver " #impl ", " #sym "@@" #verid)
-#else
-#define	__weak_reference(sym,alias)	\
-	__asm__(".weak alias");		\
-	__asm__(".equ alias, sym")
-#define	__warn_references(sym,msg)	\
-	__asm__(".section .gnu.warning.sym"); \
-	__asm__(".asciz \"msg\"");	\
-	__asm__(".previous")
-#define	__sym_compat(sym,impl,verid)	\
-	__asm__(".symver impl, sym@verid")
-#define	__sym_default(impl,sym,verid)	\
-	__asm__(".symver impl, sym@@verid")
-#endif	/* __STDC__ */
-#endif	/* __GNUC__ || __INTEL_COMPILER */
-
-#define	__GLOBL1(sym)	__asm__(".globl " #sym)
-#define	__GLOBL(sym)	__GLOBL1(sym)
-
-#if defined(__GNUC__) || defined(__INTEL_COMPILER)
-#define	__IDSTRING(name,string)	__asm__(".ident\t\"" string "\"")
-#else
-/*
- * The following definition might not work well if used in header files,
- * but it should be better than nothing.  If you want a "do nothing"
- * version, then it should generate some harmless declaration, such as:
- *    #define __IDSTRING(name,string)	struct __hack
- */
-#define	__IDSTRING(name,string)	static const char name[] __unused = string
-#endif
-
-/*
- * Embed the rcs id of a source file in the resulting library.  Note that in
- * more recent ELF binutils, we use .ident allowing the ID to be stripped.
- * Usage:
- *	__FBSDID("$FreeBSD$");
- */
-#ifndef	__FBSDID
-#if !defined(lint) && !defined(STRIP_FBSDID)
-#define	__FBSDID(s)	__IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
-#else
-#define	__FBSDID(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__RCSID
-#ifndef	NO__RCSID
-#define	__RCSID(s)	__IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
-#else
-#define	__RCSID(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__RCSID_SOURCE
-#ifndef	NO__RCSID_SOURCE
-#define	__RCSID_SOURCE(s)	__IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s)
-#else
-#define	__RCSID_SOURCE(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__SCCSID
-#ifndef	NO__SCCSID
-#define	__SCCSID(s)	__IDSTRING(__CONCAT(__sccsid_,__LINE__),s)
-#else
-#define	__SCCSID(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__COPYRIGHT
-#ifndef	NO__COPYRIGHT
-#define	__COPYRIGHT(s)	__IDSTRING(__CONCAT(__copyright_,__LINE__),s)
-#else
-#define	__COPYRIGHT(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__DECONST
-#define	__DECONST(type, var)	((type)(__uintptr_t)(const void *)(var))
-#endif
-
-#ifndef	__DEVOLATILE
-#define	__DEVOLATILE(type, var)	((type)(__uintptr_t)(volatile void *)(var))
-#endif
-
-#ifndef	__DEQUALIFY
-#define	__DEQUALIFY(type, var)	((type)(__uintptr_t)(const volatile void *)(var))
-#endif
-
-/*-
- * The following definitions are an extension of the behavior originally
- * implemented in <sys/_posix.h>, but with a different level of granularity.
- * POSIX.1 requires that the macros we test be defined before any standard
- * header file is included.
- *
- * Here's a quick run-down of the versions:
- *  defined(_POSIX_SOURCE)		1003.1-1988
- *  _POSIX_C_SOURCE == 1		1003.1-1990
- *  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
- *  _POSIX_C_SOURCE == 199309		1003.1b-1993
- *  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
- *					and the omnibus ISO/IEC 9945-1: 1996
- *  _POSIX_C_SOURCE == 200112		1003.1-2001
- *  _POSIX_C_SOURCE == 200809		1003.1-2008
- *
- * In addition, the X/Open Portability Guide, which is now the Single UNIX
- * Specification, defines a feature-test macro which indicates the version of
- * that specification, and which subsumes _POSIX_C_SOURCE.
- *
- * Our macros begin with two underscores to avoid namespace screwage.
- */
-
-/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
-#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
-#undef _POSIX_C_SOURCE		/* Probably illegal, but beyond caring now. */
-#define	_POSIX_C_SOURCE		199009
-#endif
-
-/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
-#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
-#undef _POSIX_C_SOURCE
-#define	_POSIX_C_SOURCE		199209
-#endif
-
-/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
-#ifdef _XOPEN_SOURCE
-#if _XOPEN_SOURCE - 0 >= 700
-#define	__XSI_VISIBLE		700
-#undef _POSIX_C_SOURCE
-#define	_POSIX_C_SOURCE		200809
-#elif _XOPEN_SOURCE - 0 >= 600
-#define	__XSI_VISIBLE		600
-#undef _POSIX_C_SOURCE
-#define	_POSIX_C_SOURCE		200112
-#elif _XOPEN_SOURCE - 0 >= 500
-#define	__XSI_VISIBLE		500
-#undef _POSIX_C_SOURCE
-#define	_POSIX_C_SOURCE		199506
-#endif
-#endif
-
-/*
- * Deal with all versions of POSIX.  The ordering relative to the tests above is
- * important.
- */
-#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
-#define	_POSIX_C_SOURCE		198808
-#endif
-#ifdef _POSIX_C_SOURCE
-#if _POSIX_C_SOURCE >= 200809
-#define	__POSIX_VISIBLE		200809
-#define	__ISO_C_VISIBLE		1999
-#elif _POSIX_C_SOURCE >= 200112
-#define	__POSIX_VISIBLE		200112
-#define	__ISO_C_VISIBLE		1999
-#elif _POSIX_C_SOURCE >= 199506
-#define	__POSIX_VISIBLE		199506
-#define	__ISO_C_VISIBLE		1990
-#elif _POSIX_C_SOURCE >= 199309
-#define	__POSIX_VISIBLE		199309
-#define	__ISO_C_VISIBLE		1990
-#elif _POSIX_C_SOURCE >= 199209
-#define	__POSIX_VISIBLE		199209
-#define	__ISO_C_VISIBLE		1990
-#elif _POSIX_C_SOURCE >= 199009
-#define	__POSIX_VISIBLE		199009
-#define	__ISO_C_VISIBLE		1990
-#else
-#define	__POSIX_VISIBLE		198808
-#define	__ISO_C_VISIBLE		0
-#endif /* _POSIX_C_SOURCE */
-#else
-/*-
- * Deal with _ANSI_SOURCE:
- * If it is defined, and no other compilation environment is explicitly
- * requested, then define our internal feature-test macros to zero.  This
- * makes no difference to the preprocessor (undefined symbols in preprocessing
- * expressions are defined to have value zero), but makes it more convenient for
- * a test program to print out the values.
- *
- * If a program mistakenly defines _ANSI_SOURCE and some other macro such as
- * _POSIX_C_SOURCE, we will assume that it wants the broader compilation
- * environment (and in fact we will never get here).
- */
-#if defined(_ANSI_SOURCE)	/* Hide almost everything. */
-#define	__POSIX_VISIBLE		0
-#define	__XSI_VISIBLE		0
-#define	__BSD_VISIBLE		0
-#define	__ISO_C_VISIBLE		1990
-#elif defined(_C99_SOURCE)	/* Localism to specify strict C99 env. */
-#define	__POSIX_VISIBLE		0
-#define	__XSI_VISIBLE		0
-#define	__BSD_VISIBLE		0
-#define	__ISO_C_VISIBLE		1999
-#else				/* Default environment: show everything. */
-#define	__POSIX_VISIBLE		200809
-#define	__XSI_VISIBLE		700
-#define	__BSD_VISIBLE		1
-#define	__ISO_C_VISIBLE		1999
-#endif
-#endif
-
-#ifndef	__has_feature
-#define	__has_feature(x) 0
-#endif
-#ifndef	__has_include
-#define	__has_include(x) 0
-#endif
-#ifndef	__has_builtin
-#define	__has_builtin(x) 0
-#endif
-
-#if defined(__mips) || defined(__powerpc64__) || defined(__arm__)
-#define __NO_TLS 1
-#endif
-
-#endif /* !_SYS_CDEFS_H_ */
diff --git a/include/lib/stdlib/sys/ctype.h b/include/lib/stdlib/sys/ctype.h
deleted file mode 100644
index f2758b7..0000000
--- a/include/lib/stdlib/sys/ctype.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*-
- * Copyright (c) 1982, 1988, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- * (c) UNIX System Laboratories, Inc.
- * All or some portions of this file are derived from material licensed
- * to the University of California by American Telephone and Telegraph
- * Co. or Unix System Laboratories, Inc. and are reproduced herein with
- * the permission of UNIX System Laboratories, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-/*
- * Portions copyright (c) 2009-2014, ARM Limited and Contributors.
- * All rights reserved.
- */
-
-#ifndef _SYS_CTYPE_H_
-#define	_SYS_CTYPE_H_
-
-#define isspace(c)	((c) == ' ' || ((c) >= '\t' && (c) <= '\r'))
-#define isascii(c)	(((c) & ~0x7f) == 0)
-#define isupper(c)	((c) >= 'A' && (c) <= 'Z')
-#define islower(c)	((c) >= 'a' && (c) <= 'z')
-#define isalpha(c)	(isupper(c) || islower(c))
-#define isdigit(c)	((c) >= '0' && (c) <= '9')
-#define isxdigit(c)	(isdigit(c) \
-			  || ((c) >= 'A' && (c) <= 'F') \
-			  || ((c) >= 'a' && (c) <= 'f'))
-#define isprint(c)	((c) >= ' ' && (c) <= '~')
-
-#define toupper(c)	((c) - 0x20 * (((c) >= 'a') && ((c) <= 'z')))
-#define tolower(c)	((c) + 0x20 * (((c) >= 'A') && ((c) <= 'Z')))
-
-#endif /* !_SYS_CTYPE_H_ */
diff --git a/include/lib/stdlib/sys/limits.h b/include/lib/stdlib/sys/limits.h
deleted file mode 100644
index d4fb8b7..0000000
--- a/include/lib/stdlib/sys/limits.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#ifndef _SYS_LIMITS_H_
-#define	_SYS_LIMITS_H_
-
-#include <sys/cdefs.h>
-#include <machine/_limits.h>
-
-#define	CHAR_BIT	__CHAR_BIT	/* number of bits in a char */
-
-#define	SCHAR_MAX	__SCHAR_MAX	/* max value for a signed char */
-#define	SCHAR_MIN	__SCHAR_MIN	/* min value for a signed char */
-
-#define	UCHAR_MAX	__UCHAR_MAX	/* max value for an unsigned char */
-
-#ifdef __CHAR_UNSIGNED__
-#define	CHAR_MAX	UCHAR_MAX	/* max value for a char */
-#define	CHAR_MIN	0		/* min value for a char */
-#else
-#define	CHAR_MAX	SCHAR_MAX
-#define	CHAR_MIN	SCHAR_MIN
-#endif
-
-#define	USHRT_MAX	__USHRT_MAX	/* max value for an unsigned short */
-#define	SHRT_MAX	__SHRT_MAX	/* max value for a short */
-#define	SHRT_MIN	__SHRT_MIN	/* min value for a short */
-
-#define	UINT_MAX	__UINT_MAX	/* max value for an unsigned int */
-#define	INT_MAX		__INT_MAX	/* max value for an int */
-#define	INT_MIN		__INT_MIN	/* min value for an int */
-
-#define	ULONG_MAX	__ULONG_MAX	/* max for an unsigned long */
-#define	LONG_MAX	__LONG_MAX	/* max for a long */
-#define	LONG_MIN	__LONG_MIN	/* min for a long */
-
-#ifdef __LONG_LONG_SUPPORTED
-#define	ULLONG_MAX	__ULLONG_MAX	/* max for an unsigned long long */
-#define	LLONG_MAX	__LLONG_MAX	/* max for a long long */
-#define	LLONG_MIN	__LLONG_MIN	/* min for a long long */
-#endif
-
-#if __POSIX_VISIBLE || __XSI_VISIBLE
-#define	SSIZE_MAX	__SSIZE_MAX	/* max value for an ssize_t */
-#endif
-
-#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
-#define	SIZE_T_MAX	__SIZE_T_MAX	/* max value for a size_t */
-
-#define	OFF_MAX		__OFF_MAX	/* max value for an off_t */
-#define	OFF_MIN		__OFF_MIN	/* min value for an off_t */
-#endif
-
-#if __BSD_VISIBLE
-#define	GID_MAX		UINT_MAX	/* max value for a gid_t */
-#define	UID_MAX		UINT_MAX	/* max value for a uid_t */
-
-#define	UQUAD_MAX	(__UQUAD_MAX)	/* max value for a uquad_t */
-#define	QUAD_MAX	(__QUAD_MAX)	/* max value for a quad_t */
-#define	QUAD_MIN	(__QUAD_MIN)	/* min value for a quad_t */
-#endif
-
-#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200809
-#define	LONG_BIT	__LONG_BIT
-#define	WORD_BIT	__WORD_BIT
-#endif
-
-#if __POSIX_VISIBLE
-#define	MQ_PRIO_MAX	64
-#endif
-
-#endif /* !_SYS_LIMITS_H_ */
diff --git a/include/lib/stdlib/sys/stdarg.h b/include/lib/stdlib/sys/stdarg.h
deleted file mode 100644
index c315dfc..0000000
--- a/include/lib/stdlib/sys/stdarg.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*-
- * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#ifndef _MACHINE_STDARG_H_
-#define	_MACHINE_STDARG_H_
-
-#include <sys/cdefs.h>
-#include <sys/_types.h>
-
-#ifndef _VA_LIST_DECLARED
-#define	_VA_LIST_DECLARED
-typedef	__va_list	va_list;
-#endif
-
-#ifdef __GNUCLIKE_BUILTIN_STDARG
-
-#define	va_start(ap, last) \
-	__builtin_va_start((ap), (last))
-
-#define	va_arg(ap, type) \
-	__builtin_va_arg((ap), type)
-
-#define	__va_copy(dest, src) \
-	__builtin_va_copy((dest), (src))
-
-#if __ISO_C_VISIBLE >= 1999
-#define	va_copy(dest, src) \
-	__va_copy(dest, src)
-#endif
-
-#define	va_end(ap) \
-	__builtin_va_end(ap)
-
-#elif defined(lint)
-/* Provide a fake implementation for lint's benefit */
-#define	__va_size(type) \
-	(((sizeof(type) + sizeof(long) - 1) / sizeof(long)) * sizeof(long))
-#define	va_start(ap, last) \
-	((ap) = (va_list)&(last) + __va_size(last))
-#define	va_arg(ap, type) \
-	(*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))
-#define	va_end(ap)
-
-#else
-#error this file needs to be ported to your compiler
-#endif
-
-#endif /* !_MACHINE_STDARG_H_ */
diff --git a/include/lib/stdlib/sys/stdint.h b/include/lib/stdlib/sys/stdint.h
deleted file mode 100644
index fb6e35a..0000000
--- a/include/lib/stdlib/sys/stdint.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*-
- * Copyright (c) 2001 Mike Barcroft <mike@FreeBSD.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#ifndef _SYS_STDINT_H_
-#define _SYS_STDINT_H_
-
-#include <sys/cdefs.h>
-#include <sys/_types.h>
-#include <sys/types.h>
-
-#include <machine/_stdint.h>
-#include <sys/_stdint.h>
-
-typedef	__int_least8_t		int_least8_t;
-typedef	__int_least16_t		int_least16_t;
-typedef	__int_least32_t		int_least32_t;
-typedef	__int_least64_t		int_least64_t;
-
-typedef	__uint_least8_t		uint_least8_t;
-typedef	__uint_least16_t	uint_least16_t;
-typedef	__uint_least32_t	uint_least32_t;
-typedef	__uint_least64_t	uint_least64_t;
-
-typedef	__int_fast8_t		int_fast8_t;
-typedef	__int_fast16_t		int_fast16_t;
-typedef	__int_fast32_t		int_fast32_t;
-typedef	__int_fast64_t		int_fast64_t;
-
-typedef	__uint_fast8_t		uint_fast8_t;
-typedef	__uint_fast16_t		uint_fast16_t;
-typedef	__uint_fast32_t		uint_fast32_t;
-typedef	__uint_fast64_t		uint_fast64_t;
-
-#ifndef _INTMAX_T_DECLARED
-typedef	__intmax_t		intmax_t;
-#define	_INTMAX_T_DECLARED
-#endif
-#ifndef _UINTMAX_T_DECLARED
-typedef	__uintmax_t		uintmax_t;
-#define	_UINTMAX_T_DECLARED
-#endif
-
-/* GNU and Darwin define this and people seem to think it's portable */
-#if defined(UINTPTR_MAX) && defined(UINT64_MAX) && (UINTPTR_MAX == UINT64_MAX)
-#define	__WORDSIZE		64
-#else
-#define	__WORDSIZE		32
-#endif
-
-#endif /* !_SYS_STDINT_H_ */
diff --git a/include/lib/stdlib/sys/types.h b/include/lib/stdlib/sys/types.h
deleted file mode 100644
index ae2ea33..0000000
--- a/include/lib/stdlib/sys/types.h
+++ /dev/null
@@ -1,245 +0,0 @@
-/*-
- * Copyright (c) 1982, 1986, 1991, 1993, 1994
- *	The Regents of the University of California.  All rights reserved.
- * (c) UNIX System Laboratories, Inc.
- * All or some portions of this file are derived from material licensed
- * to the University of California by American Telephone and Telegraph
- * Co. or Unix System Laboratories, Inc. and are reproduced herein with
- * the permission of UNIX System Laboratories, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)types.h	8.6 (Berkeley) 2/19/95
- * $FreeBSD$
- */
-
-#ifndef _SYS_TYPES_H_
-#define	_SYS_TYPES_H_
-
-#include <sys/cdefs.h>
-
-/* Machine type dependent parameters. */
-#include <sys/_types.h>
-
-#if __BSD_VISIBLE
-typedef	unsigned char	u_char;
-typedef	unsigned short	u_short;
-typedef	unsigned int	u_int;
-typedef	unsigned long	u_long;
-#ifndef _KERNEL
-typedef	unsigned short	ushort;		/* Sys V compatibility */
-typedef	unsigned int	uint;		/* Sys V compatibility */
-#endif
-#endif
-
-/*
- * XXX POSIX sized integrals that should appear only in <sys/stdint.h>.
- */
-#include <sys/_stdint.h>
-
-typedef __uint8_t	u_int8_t;	/* unsigned integrals (deprecated) */
-typedef __uint16_t	u_int16_t;
-typedef __uint32_t	u_int32_t;
-typedef __uint64_t	u_int64_t;
-
-typedef	__uint64_t	u_quad_t;	/* quads (deprecated) */
-typedef	__int64_t	quad_t;
-typedef	quad_t		*qaddr_t;
-
-typedef	char		*caddr_t;	/* core address */
-typedef	const char	*c_caddr_t;	/* core address, pointer to const */
-
-#ifndef _BLKSIZE_T_DECLARED
-typedef	__blksize_t	blksize_t;
-#define	_BLKSIZE_T_DECLARED
-#endif
-
-typedef	__cpuwhich_t	cpuwhich_t;
-typedef	__cpulevel_t	cpulevel_t;
-typedef	__cpusetid_t	cpusetid_t;
-
-#ifndef _BLKCNT_T_DECLARED
-typedef	__blkcnt_t	blkcnt_t;
-#define	_BLKCNT_T_DECLARED
-#endif
-
-#ifndef _CLOCK_T_DECLARED
-typedef	__clock_t	clock_t;
-#define	_CLOCK_T_DECLARED
-#endif
-
-#ifndef _CLOCKID_T_DECLARED
-typedef	__clockid_t	clockid_t;
-#define	_CLOCKID_T_DECLARED
-#endif
-
-typedef	__critical_t	critical_t;	/* Critical section value */
-typedef	__int64_t	daddr_t;	/* disk address */
-
-#ifndef _DEV_T_DECLARED
-typedef	__dev_t		dev_t;		/* device number or struct cdev */
-#define	_DEV_T_DECLARED
-#endif
-
-#ifndef _FFLAGS_T_DECLARED
-typedef	__fflags_t	fflags_t;	/* file flags */
-#define	_FFLAGS_T_DECLARED
-#endif
-
-typedef	__fixpt_t	fixpt_t;	/* fixed point number */
-
-#ifndef _FSBLKCNT_T_DECLARED		/* for statvfs() */
-typedef	__fsblkcnt_t	fsblkcnt_t;
-typedef	__fsfilcnt_t	fsfilcnt_t;
-#define	_FSBLKCNT_T_DECLARED
-#endif
-
-#ifndef _GID_T_DECLARED
-typedef	__gid_t		gid_t;		/* group id */
-#define	_GID_T_DECLARED
-#endif
-
-#ifndef _IN_ADDR_T_DECLARED
-typedef	__uint32_t	in_addr_t;	/* base type for internet address */
-#define	_IN_ADDR_T_DECLARED
-#endif
-
-#ifndef _IN_PORT_T_DECLARED
-typedef	__uint16_t	in_port_t;
-#define	_IN_PORT_T_DECLARED
-#endif
-
-#ifndef _ID_T_DECLARED
-typedef	__id_t		id_t;		/* can hold a uid_t or pid_t */
-#define	_ID_T_DECLARED
-#endif
-
-#ifndef _INO_T_DECLARED
-typedef	__ino_t		ino_t;		/* inode number */
-#define	_INO_T_DECLARED
-#endif
-
-#ifndef _KEY_T_DECLARED
-typedef	__key_t		key_t;		/* IPC key (for Sys V IPC) */
-#define	_KEY_T_DECLARED
-#endif
-
-#ifndef _LWPID_T_DECLARED
-typedef	__lwpid_t	lwpid_t;	/* Thread ID (a.k.a. LWP) */
-#define	_LWPID_T_DECLARED
-#endif
-
-#ifndef _MODE_T_DECLARED
-typedef	__mode_t	mode_t;		/* permissions */
-#define	_MODE_T_DECLARED
-#endif
-
-#ifndef _ACCMODE_T_DECLARED
-typedef	__accmode_t	accmode_t;	/* access permissions */
-#define	_ACCMODE_T_DECLARED
-#endif
-
-#ifndef _NLINK_T_DECLARED
-typedef	__nlink_t	nlink_t;	/* link count */
-#define	_NLINK_T_DECLARED
-#endif
-
-#ifndef _OFF_T_DECLARED
-typedef	__off_t		off_t;		/* file offset */
-#define	_OFF_T_DECLARED
-#endif
-
-#ifndef _PID_T_DECLARED
-typedef	__pid_t		pid_t;		/* process id */
-#define	_PID_T_DECLARED
-#endif
-
-typedef	__register_t	register_t;
-
-#ifndef _RLIM_T_DECLARED
-typedef	__rlim_t	rlim_t;		/* resource limit */
-#define	_RLIM_T_DECLARED
-#endif
-
-typedef	__int64_t	sbintime_t;
-
-typedef	__segsz_t	segsz_t;	/* segment size (in pages) */
-
-#ifndef _SIZE_T_DECLARED
-typedef	__size_t	size_t;
-#define	_SIZE_T_DECLARED
-#endif
-
-#ifndef _SSIZE_T_DECLARED
-typedef	__ssize_t	ssize_t;
-#define	_SSIZE_T_DECLARED
-#endif
-
-#ifndef _SUSECONDS_T_DECLARED
-typedef	__suseconds_t	suseconds_t;	/* microseconds (signed) */
-#define	_SUSECONDS_T_DECLARED
-#endif
-
-#ifndef _TIME_T_DECLARED
-typedef	__time_t	time_t;
-#define	_TIME_T_DECLARED
-#endif
-
-#ifndef _TIMER_T_DECLARED
-typedef	__timer_t	timer_t;
-#define	_TIMER_T_DECLARED
-#endif
-
-#ifndef _MQD_T_DECLARED
-typedef	__mqd_t	mqd_t;
-#define	_MQD_T_DECLARED
-#endif
-
-typedef	__u_register_t	u_register_t;
-
-#ifndef _UID_T_DECLARED
-typedef	__uid_t		uid_t;		/* user id */
-#define	_UID_T_DECLARED
-#endif
-
-#ifndef _USECONDS_T_DECLARED
-typedef	__useconds_t	useconds_t;	/* microseconds (unsigned) */
-#define	_USECONDS_T_DECLARED
-#endif
-
-#ifndef _CAP_RIGHTS_T_DECLARED
-#define	_CAP_RIGHTS_T_DECLARED
-struct cap_rights;
-
-typedef	struct cap_rights	cap_rights_t;
-#endif
-
-typedef	__vm_offset_t	vm_offset_t;
-typedef	__vm_ooffset_t	vm_ooffset_t;
-typedef	__vm_paddr_t	vm_paddr_t;
-typedef	__vm_pindex_t	vm_pindex_t;
-typedef	__vm_size_t	vm_size_t;
-
-#endif /* !_SYS_TYPES_H_ */
diff --git a/include/lib/tftf_lib.h b/include/lib/tftf_lib.h
index 58112b4..3f60fec 100644
--- a/include/lib/tftf_lib.h
+++ b/include/lib/tftf_lib.h
@@ -13,7 +13,6 @@
 #include <arch_helpers.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <sys/types.h>
 
 /*
  * Possible error codes for signaling the result of a test
diff --git a/include/runtime_services/secure_el0_payloads/secure_partition.h b/include/runtime_services/secure_el0_payloads/secure_partition.h
index 712337e..0a41dde 100644
--- a/include/runtime_services/secure_el0_payloads/secure_partition.h
+++ b/include/runtime_services/secure_el0_payloads/secure_partition.h
@@ -8,7 +8,7 @@
 #define SECURE_PARTITION_H
 
 #include <param_header.h>
-#include <types.h>
+#include <stdint.h>
 #include <utils_def.h>
 
 /*
diff --git a/include/runtime_services/spci_helpers.h b/include/runtime_services/spci_helpers.h
index 3452452..a64591e 100644
--- a/include/runtime_services/spci_helpers.h
+++ b/include/runtime_services/spci_helpers.h
@@ -18,7 +18,6 @@
 #ifndef __ASSEMBLY__
 
 #include <stdint.h>
-#include <types.h>
 
 int spci_service_handle_open(uint16_t client_id, uint16_t *handle,
 			     uint32_t uuid1, uint32_t uuid2,
diff --git a/lib/compiler-rt/builtins/int_lib.h b/lib/compiler-rt/builtins/int_lib.h
index 724d5a4..2acc4bf 100644
--- a/lib/compiler-rt/builtins/int_lib.h
+++ b/lib/compiler-rt/builtins/int_lib.h
@@ -60,9 +60,8 @@
 #define UNUSED __attribute__((unused))
 #endif
 
-#include <sys/limits.h>
-#include <sys/stdint.h>
-#include <sys/types.h>
+#include <limits.h>
+#include <stdint.h>
 
 /* Include the commonly used internal type definitions. */
 #include "int_types.h"
diff --git a/lib/libc/aarch64/setjmp.S b/lib/libc/aarch64/setjmp.S
new file mode 100644
index 0000000..9d9eb49
--- /dev/null
+++ b/lib/libc/aarch64/setjmp.S
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <asm_macros.S>
+#include <assert_macros.S>
+#include <setjmp.h>
+
+	.globl	setjmp
+	.globl	longjmp
+
+/*
+ * int setjmp(jmp_buf env);
+ */
+func setjmp
+	mov	x7, sp
+
+	stp	x19, x20, [x0, #JMP_CTX_X19]
+	stp	x21, x22, [x0, #JMP_CTX_X21]
+	stp	x23, x24, [x0, #JMP_CTX_X23]
+	stp	x25, x26, [x0, #JMP_CTX_X25]
+	stp	x27, x28, [x0, #JMP_CTX_X27]
+	stp	x29, x30, [x0, #JMP_CTX_X29]
+	stp	x7, xzr, [x0, #JMP_CTX_SP]
+
+	mov	x0, #0
+	ret
+endfunc setjmp
+
+
+/*
+ * void longjmp(jmp_buf env, int val);
+ */
+func longjmp
+	ldp	x7, xzr, [x0, #JMP_CTX_SP]
+
+#if ENABLE_ASSERTIONS
+	/*
+	 * Since we're unwinding the stack, assert that the stack being reset to
+	 * is shallower.
+	 */
+	mov	x19, sp
+	cmp	x7, x19
+	ASM_ASSERT(ge)
+#endif
+
+	ldp	x19, x20, [x0, #JMP_CTX_X19]
+	ldp	x21, x22, [x0, #JMP_CTX_X21]
+	ldp	x23, x24, [x0, #JMP_CTX_X23]
+	ldp	x25, x26, [x0, #JMP_CTX_X25]
+	ldp	x27, x28, [x0, #JMP_CTX_X27]
+	ldp	x29, x30, [x0, #JMP_CTX_X29]
+
+	mov	sp, x7
+
+	ands	x0, x1, x1 /* Move val to x0 and set flags */
+	cinc	x0, x0, eq /* If val is 0, return 1 */
+	ret
+endfunc longjmp
diff --git a/lib/libc/abort.c b/lib/libc/abort.c
new file mode 100644
index 0000000..432b1d0
--- /dev/null
+++ b/lib/libc/abort.c
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdlib.h>
+
+#include <common/debug.h>
+
+void abort(void)
+{
+	ERROR("ABORT\n");
+	panic();
+}
diff --git a/lib/libc/assert.c b/lib/libc/assert.c
new file mode 100644
index 0000000..dbf8507
--- /dev/null
+++ b/lib/libc/assert.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <cdefs.h>
+#include <stdio.h>
+
+#include <common/debug.h>
+
+void __assert(const char *file, unsigned int line, const char *assertion)
+{
+	printf("ASSERT: %s:%d:%s\n", file, line, assertion);
+	panic();
+}
diff --git a/lib/libc/exit.c b/lib/libc/exit.c
new file mode 100644
index 0000000..f4ffe27
--- /dev/null
+++ b/lib/libc/exit.c
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdlib.h>
+
+static void (*exitfun)(void);
+
+void exit(int status)
+{
+	if (exitfun != NULL)
+		(*exitfun)();
+	for (;;)
+		;
+}
+
+int atexit(void (*fun)(void))
+{
+	if (exitfun != NULL)
+		return -1;
+	exitfun = fun;
+
+	return 0;
+}
diff --git a/lib/libc/libc.mk b/lib/libc/libc.mk
new file mode 100644
index 0000000..729b91c
--- /dev/null
+++ b/lib/libc/libc.mk
@@ -0,0 +1,36 @@
+#
+# Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+LIBC_SRCS	:=	$(addprefix lib/libc/,		\
+			abort.c				\
+			assert.c			\
+			exit.c				\
+			memchr.c			\
+			memcmp.c			\
+			memcpy.c			\
+			memmove.c			\
+			memset.c			\
+			printf.c			\
+			putchar.c			\
+			puts.c				\
+			rand.c				\
+			snprintf.c			\
+			strchr.c			\
+			strcmp.c			\
+			strlcpy.c			\
+			strlen.c			\
+			strncmp.c			\
+			strncpy.c			\
+			strnlen.c			\
+			strrchr.c)
+
+ifeq (${ARCH},aarch64)
+LIBC_SRCS	+=	$(addprefix lib/libc/aarch64/,	\
+			setjmp.S)
+endif
+
+INCLUDES	+=	-Iinclude/lib/libc		\
+			-Iinclude/lib/libc/$(ARCH)	\
diff --git a/lib/libc/memchr.c b/lib/libc/memchr.c
new file mode 100644
index 0000000..2eba47c
--- /dev/null
+++ b/lib/libc/memchr.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stddef.h>
+
+void *memchr(const void *src, int c, size_t len)
+{
+	const char *s = src;
+
+	while (len--) {
+		if (*s == c)
+			return (void *) s;
+		s++;
+	}
+
+	return NULL;
+}
diff --git a/lib/libc/memcmp.c b/lib/libc/memcmp.c
new file mode 100644
index 0000000..a4c798b
--- /dev/null
+++ b/lib/libc/memcmp.c
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stddef.h>
+
+int memcmp(const void *s1, const void *s2, size_t len)
+{
+	const unsigned char *s = s1;
+	const unsigned char *d = s2;
+	unsigned char sc;
+	unsigned char dc;
+
+	while (len--) {
+		sc = *s++;
+		dc = *d++;
+		if (sc - dc)
+			return (sc - dc);
+	}
+
+	return 0;
+}
diff --git a/lib/libc/memcpy.c b/lib/libc/memcpy.c
new file mode 100644
index 0000000..fc0c9fe
--- /dev/null
+++ b/lib/libc/memcpy.c
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stddef.h>
+
+void *memcpy(void *dst, const void *src, size_t len)
+{
+	const char *s = src;
+	char *d = dst;
+
+	while (len--)
+		*d++ = *s++;
+
+	return dst;
+}
diff --git a/lib/libc/memmove.c b/lib/libc/memmove.c
new file mode 100644
index 0000000..63acf26
--- /dev/null
+++ b/lib/libc/memmove.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <string.h>
+
+void *memmove(void *dst, const void *src, size_t len)
+{
+	/*
+	 * The following test makes use of unsigned arithmetic overflow to
+	 * more efficiently test the condition !(src <= dst && dst < str+len).
+	 * It also avoids the situation where the more explicit test would give
+	 * incorrect results were the calculation str+len to overflow (though
+	 * that issue is probably moot as such usage is probably undefined
+	 * behaviour and a bug anyway.
+	 */
+	if ((size_t)dst - (size_t)src >= len) {
+		/* destination not in source data, so can safely use memcpy */
+		return memcpy(dst, src, len);
+	} else {
+		/* copy backwards... */
+		const char *end = dst;
+		const char *s = (const char *)src + len;
+		char *d = (char *)dst + len;
+		while (d != end)
+			*--d = *--s;
+	}
+	return dst;
+}
diff --git a/lib/libc/memset.c b/lib/libc/memset.c
new file mode 100644
index 0000000..03aa809
--- /dev/null
+++ b/lib/libc/memset.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stddef.h>
+
+void *memset(void *dst, int val, size_t count)
+{
+	char *ptr = dst;
+
+	while (count--)
+		*ptr++ = val;
+
+	return dst;
+}
diff --git a/lib/libc/printf.c b/lib/libc/printf.c
new file mode 100644
index 0000000..60203fb
--- /dev/null
+++ b/lib/libc/printf.c
@@ -0,0 +1,251 @@
+/*
+ * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <common/debug.h>
+
+#define get_num_va_args(_args, _lcount)				\
+	(((_lcount) > 1)  ? va_arg(_args, long long int) :	\
+	(((_lcount) == 1) ? va_arg(_args, long int) :		\
+			    va_arg(_args, int)))
+
+#define get_unum_va_args(_args, _lcount)				\
+	(((_lcount) > 1)  ? va_arg(_args, unsigned long long int) :	\
+	(((_lcount) == 1) ? va_arg(_args, unsigned long int) :		\
+			    va_arg(_args, unsigned int)))
+
+static int string_print(const char *str, char padc, int padn)
+{
+	int i = 0, count = 0;
+
+	assert(str != NULL);
+
+	while (str[i] != '\0')
+		i++;
+
+	if (padn > 0) {
+		while (i < padn) {
+			(void)putchar(padc);
+			count++;
+			padn--;
+		}
+	}
+
+	for ( ; *str != '\0'; str++) {
+		(void)putchar(*str);
+		count++;
+	}
+
+	if (padn < 0) {
+		while (i < -padn) {
+			(void)putchar(padc);
+			count++;
+			padn++;
+		}
+	}
+
+	return count;
+}
+
+static int unsigned_num_print(unsigned long long int unum, unsigned int radix,
+			      char padc, int padn)
+{
+	/* Just need enough space to store 64 bit decimal integer */
+	char num_buf[20];
+	int i = 0, count = 0;
+	int width;
+	unsigned int rem;
+
+	do {
+		rem = unum % radix;
+		if (rem < 0xa)
+			num_buf[i] = '0' + rem;
+		else
+			num_buf[i] = 'a' + (rem - 0xa);
+		i++;
+		unum /= radix;
+	} while (unum > 0U);
+
+	width = i;
+
+	if (padn > 0) {
+		while (width < padn) {
+			(void)putchar(padc);
+			count++;
+			padn--;
+		}
+	}
+
+	while (--i >= 0) {
+		(void)putchar(num_buf[i]);
+		count++;
+	}
+
+	if (padn < 0) {
+		while (width < -padn) {
+			(void)putchar(padc);
+			count++;
+			padn++;
+		}
+	}
+
+	return count;
+}
+
+/*******************************************************************
+ * Simplified version of printf() with smaller memory footprint.
+ * The following type specifiers are supported by this print
+ * %x - hexadecimal format
+ * %s - string format
+ * %d or %i - signed decimal format
+ * %u - unsigned decimal format
+ * %p - pointer format
+ *
+ * The following length specifiers are supported by this print
+ * %l - long int (64-bit on AArch64)
+ * %ll - long long int (64-bit on AArch64)
+ * %z - size_t sized integer formats (64 bit on AArch64)
+ *
+ * The following padding specifiers are supported by this print
+ * %0NN - Left-pad the number with 0s (NN is a decimal number)
+ * %NN - Left-pad the number or string with spaces (NN is a decimal number)
+ * %-NN - Right-pad the number or string with spaces (NN is a decimal number)
+ *
+ * The print exits on all other formats specifiers other than valid
+ * combinations of the above specifiers.
+ *******************************************************************/
+int vprintf(const char *fmt, va_list args)
+{
+	int l_count;
+	int left;
+	long long int num;
+	unsigned long long int unum;
+	char *str;
+	char padc; /* Padding character */
+	int padn; /* Number of characters to pad */
+	int count = 0; /* Number of printed characters */
+
+	while (*fmt != '\0') {
+		l_count = 0;
+		left = 0;
+		padc = '\0';
+		padn = 0;
+
+		if (*fmt == '%') {
+			fmt++;
+			/* Check the format specifier */
+loop:
+			switch (*fmt) {
+			case '1':
+			case '2':
+			case '3':
+			case '4':
+			case '5':
+			case '6':
+			case '7':
+			case '8':
+			case '9':
+				padc = ' ';
+				for (padn = 0; *fmt >= '0' && *fmt <= '9'; fmt++)
+					padn = (padn * 10) + (*fmt - '0');
+				if (left)
+					padn = -padn;
+				goto loop;
+			case '-':
+				left = 1;
+				fmt++;
+				goto loop;
+			case 'i': /* Fall through to next one */
+			case 'd':
+				num = get_num_va_args(args, l_count);
+				if (num < 0) {
+					(void)putchar('-');
+					unum = (unsigned long long int)-num;
+					padn--;
+				} else
+					unum = (unsigned long long int)num;
+
+				count += unsigned_num_print(unum, 10,
+							    padc, padn);
+				break;
+			case 's':
+				str = va_arg(args, char *);
+				count += string_print(str, padc, padn);
+				break;
+			case 'p':
+				unum = (uintptr_t)va_arg(args, void *);
+				if (unum > 0U) {
+					count += string_print("0x", padc, 0);
+					padn -= 2;
+				}
+
+				count += unsigned_num_print(unum, 16,
+							    padc, padn);
+				break;
+			case 'x':
+				unum = get_unum_va_args(args, l_count);
+				count += unsigned_num_print(unum, 16,
+							    padc, padn);
+				break;
+			case 'z':
+				if (sizeof(size_t) == 8U)
+					l_count = 2;
+
+				fmt++;
+				goto loop;
+			case 'l':
+				l_count++;
+				fmt++;
+				goto loop;
+			case 'u':
+				unum = get_unum_va_args(args, l_count);
+				count += unsigned_num_print(unum, 10,
+							    padc, padn);
+				break;
+			case '0':
+				padc = '0';
+				padn = 0;
+				fmt++;
+
+				for (;;) {
+					char ch = *fmt;
+					if ((ch < '0') || (ch > '9')) {
+						goto loop;
+					}
+					padn = (padn * 10) + (ch - '0');
+					fmt++;
+				}
+				assert(0); /* Unreachable */
+			default:
+				/* Exit on any other format specifier */
+				return -1;
+			}
+			fmt++;
+			continue;
+		}
+		(void)putchar(*fmt);
+		fmt++;
+		count++;
+	}
+
+	return count;
+}
+
+int printf(const char *fmt, ...)
+{
+	int count;
+	va_list va;
+
+	va_start(va, fmt);
+	count = vprintf(fmt, va);
+	va_end(va);
+
+	return count;
+}
diff --git a/lib/libc/putchar.c b/lib/libc/putchar.c
new file mode 100644
index 0000000..037e28a
--- /dev/null
+++ b/lib/libc/putchar.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdio.h>
+
+#include <drivers/console.h>
+
+int putchar(int c)
+{
+	int res;
+	if (console_putc((unsigned char)c) >= 0)
+		res = c;
+	else
+		res = EOF;
+
+	return res;
+}
diff --git a/lib/libc/puts.c b/lib/libc/puts.c
new file mode 100644
index 0000000..2a0ca11
--- /dev/null
+++ b/lib/libc/puts.c
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdio.h>
+
+int puts(const char *s)
+{
+	int count = 0;
+
+	while (*s != '\0') {
+		if (putchar(*s) == EOF)
+			return EOF;
+		s++;
+		count++;
+	}
+
+	if (putchar('\n') == EOF)
+		return EOF;
+
+	return count + 1;
+}
diff --git a/lib/stdlib/rand.c b/lib/libc/rand.c
similarity index 100%
rename from lib/stdlib/rand.c
rename to lib/libc/rand.c
diff --git a/lib/libc/snprintf.c b/lib/libc/snprintf.c
new file mode 100644
index 0000000..29c50df
--- /dev/null
+++ b/lib/libc/snprintf.c
@@ -0,0 +1,250 @@
+/*
+ * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
+#include <common/debug.h>
+#include <plat/common/platform.h>
+
+#define get_num_va_args(_args, _lcount)				\
+	(((_lcount) > 1)  ? va_arg(_args, long long int) :	\
+	(((_lcount) == 1) ? va_arg(_args, long int) :		\
+			    va_arg(_args, int)))
+
+#define get_unum_va_args(_args, _lcount)				\
+	(((_lcount) > 1)  ? va_arg(_args, unsigned long long int) :	\
+	(((_lcount) == 1) ? va_arg(_args, unsigned long int) :		\
+			    va_arg(_args, unsigned int)))
+
+static void string_print(char **s, size_t n, size_t *chars_printed,
+			 const char *str)
+{
+	while (*str != '\0') {
+		if (*chars_printed < n) {
+			*(*s) = *str;
+			(*s)++;
+		}
+
+		(*chars_printed)++;
+		str++;
+	}
+}
+
+static void unsigned_num_print(char **s, size_t n, size_t *count,
+			      unsigned long long int unum, unsigned int radix,
+			      char padc, int padn)
+{
+	/* Just need enough space to store 64 bit decimal integer */
+	char num_buf[20];
+	int i = 0;
+	int width;
+	unsigned int rem;
+
+	do {
+		rem = unum % radix;
+		if (rem < 0xa)
+			num_buf[i] = '0' + rem;
+		else
+			num_buf[i] = 'a' + (rem - 0xa);
+		i++;
+		unum /= radix;
+	} while (unum > 0U);
+
+	width = i;
+
+	if (padn > 0) {
+		while (width < padn) {
+			if (*count < n) {
+				*(*s) = padc;
+				(*s)++;
+			}
+			(*count)++;
+			padn--;
+		}
+	}
+
+	while (--i >= 0) {
+		if (*count < n) {
+			*(*s) = num_buf[i];
+			(*s)++;
+		}
+		(*count)++;
+	}
+
+	if (padn < 0) {
+		while (width < -padn) {
+			if (*count < n) {
+				*(*s) = padc;
+				(*s)++;
+			}
+			(*count)++;
+			padn++;
+		}
+	}
+}
+
+/*
+ * Scaled down version of vsnprintf(3).
+ */
+int vsnprintf(char *s, size_t n, const char *fmt, va_list args)
+{
+	int l_count;
+	int left;
+	char *str;
+	int num;
+	unsigned long long int unum;
+	char padc; /* Padding character */
+	int padn; /* Number of characters to pad */
+	size_t count = 0U;
+
+	if (n == 0U) {
+		/* There isn't space for anything. */
+	} else if (n == 1U) {
+		/* Buffer is too small to actually write anything else. */
+		*s = '\0';
+		n = 0U;
+	} else {
+		/* Reserve space for the terminator character. */
+		n--;
+	}
+
+	while (*fmt != '\0') {
+		l_count = 0;
+		left = 0;
+		padc = '\0';
+		padn = 0;
+
+		if (*fmt == '%') {
+			fmt++;
+			/* Check the format specifier. */
+loop:
+			switch (*fmt) {
+			case '1':
+			case '2':
+			case '3':
+			case '4':
+			case '5':
+			case '6':
+			case '7':
+			case '8':
+			case '9':
+				padc = ' ';
+				for (padn = 0; *fmt >= '0' && *fmt <= '9'; fmt++)
+					padn = (padn * 10) + (*fmt - '0');
+				if (left)
+					padn = -padn;
+				goto loop;
+			case '-':
+				left = 1;
+				fmt++;
+				goto loop;
+			case 'i':
+			case 'd':
+				num = get_num_va_args(args, l_count);
+
+				if (num < 0) {
+					if (count < n) {
+						*s = '-';
+						s++;
+					}
+					count++;
+
+					unum = (unsigned int)-num;
+				} else {
+					unum = (unsigned int)num;
+				}
+
+				unsigned_num_print(&s, n, &count, unum, 10,
+						   padc, padn);
+				break;
+			case 'l':
+				l_count++;
+				fmt++;
+				goto loop;
+			case 's':
+				str = va_arg(args, char *);
+				string_print(&s, n, &count, str);
+				break;
+			case 'u':
+				unum = get_unum_va_args(args, l_count);
+				unsigned_num_print(&s, n, &count, unum, 10,
+						   padc, padn);
+				break;
+			case 'x':
+				unum = get_unum_va_args(args, l_count);
+				unsigned_num_print(&s, n, &count, unum, 16,
+						   padc, padn);
+				break;
+			case '0':
+				padc = '0';
+				padn = 0;
+				fmt++;
+
+				for (;;) {
+					char ch = *fmt;
+					if ((ch < '0') || (ch > '9')) {
+						goto loop;
+					}
+					padn = (padn * 10) + (ch - '0');
+					fmt++;
+				}
+				assert(0); /* Unreachable */
+			default:
+				/*
+				 * Exit on any other format specifier and abort
+				 * when in debug mode.
+				 */
+				WARN("snprintf: specifier with ASCII code '%d' not supported.\n",
+				     *fmt);
+				assert(0);
+				return -1;
+			}
+			fmt++;
+			continue;
+		}
+
+		if (count < n) {
+			*s = *fmt;
+			s++;
+		}
+
+		fmt++;
+		count++;
+	}
+
+	if (n > 0U)
+		*s = '\0';
+
+	return (int)count;
+}
+
+/*******************************************************************
+ * Reduced snprintf to be used for Trusted firmware.
+ * The following type specifiers are supported:
+ *
+ * %d or %i - signed decimal format
+ * %s - string format
+ * %u - unsigned decimal format
+ *
+ * The function panics on all other formats specifiers.
+ *
+ * It returns the number of characters that would be written if the
+ * buffer was big enough. If it returns a value lower than n, the
+ * whole string has been written.
+ *******************************************************************/
+int snprintf(char *s, size_t n, const char *fmt, ...)
+{
+	va_list args;
+	int chars_printed;
+
+	va_start(args, fmt);
+	chars_printed = vsnprintf(s, n, fmt, args);
+	va_end(args);
+
+	return chars_printed;
+}
diff --git a/lib/stdlib/strchr.c b/lib/libc/strchr.c
similarity index 90%
rename from lib/stdlib/strchr.c
rename to lib/libc/strchr.c
index 0963cb4..d94bb9e 100644
--- a/lib/stdlib/strchr.c
+++ b/lib/libc/strchr.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
@@ -10,7 +12,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -28,11 +30,10 @@
  */
 
 /*
- * Portions copyright (c) 2013-2018, ARM Limited and Contributors.
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
  * All rights reserved.
  */
 
-#include <sys/cdefs.h>
 #include <stddef.h>
 #include <string.h>
 
diff --git a/lib/stdlib/strcmp.c b/lib/libc/strcmp.c
similarity index 87%
rename from lib/stdlib/strcmp.c
rename to lib/libc/strcmp.c
index 52a415b..b742f9b 100644
--- a/lib/stdlib/strcmp.c
+++ b/lib/libc/strcmp.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
@@ -13,7 +15,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -31,11 +33,10 @@
  */
 
 /*
- * Portions copyright (c) 2014-2018, ARM Limited and Contributors.
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
  * All rights reserved.
  */
 
-#include <sys/cdefs.h>
 #include <string.h>
 
 /*
@@ -46,6 +47,6 @@
 {
 	while (*s1 == *s2++)
 		if (*s1++ == '\0')
-			return 0;
-	return *(const unsigned char *)s1 - *(const unsigned char *)(s2 - 1);
+			return (0);
+	return (*(const unsigned char *)s1 - *(const unsigned char *)(s2 - 1));
 }
diff --git a/lib/libc/strlcpy.c b/lib/libc/strlcpy.c
new file mode 100644
index 0000000..c4f39bb
--- /dev/null
+++ b/lib/libc/strlcpy.c
@@ -0,0 +1,52 @@
+/*	$OpenBSD: strlcpy.c,v 1.12 2015/01/15 03:54:12 millert Exp $	*/
+
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+/*
+ * Copy string src to buffer dst of size dsize.  At most dsize-1
+ * chars will be copied.  Always NUL terminates (unless dsize == 0).
+ * Returns strlen(src); if retval >= dsize, truncation occurred.
+ */
+size_t
+strlcpy(char * dst, const char * src, size_t dsize)
+{
+	const char *osrc = src;
+	size_t nleft = dsize;
+
+	/* Copy as many bytes as will fit. */
+	if (nleft != 0) {
+		while (--nleft != 0) {
+			if ((*dst++ = *src++) == '\0')
+				break;
+		}
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src. */
+	if (nleft == 0) {
+		if (dsize != 0)
+			*dst = '\0';		/* NUL-terminate dst */
+		while (*src++)
+			;
+	}
+
+	return(src - osrc - 1);	/* count does not include NUL */
+}
diff --git a/lib/libc/strlen.c b/lib/libc/strlen.c
new file mode 100644
index 0000000..3c27630
--- /dev/null
+++ b/lib/libc/strlen.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <string.h>
+
+size_t strlen(const char *s)
+{
+	const char *cursor = s;
+
+	while (*cursor)
+		cursor++;
+
+	return cursor - s;
+}
diff --git a/lib/stdlib/strncmp.c b/lib/libc/strncmp.c
similarity index 89%
rename from lib/stdlib/strncmp.c
rename to lib/libc/strncmp.c
index c5ad0a8..ce9e5ed 100644
--- a/lib/stdlib/strncmp.c
+++ b/lib/libc/strncmp.c
@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
@@ -10,7 +12,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -28,11 +30,10 @@
  */
 
 /*
- * Portions copyright (c) 2014-2018, ARM Limited and Contributors.
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
  * All rights reserved.
  */
 
-#include <sys/cdefs.h>
 #include <string.h>
 
 int
@@ -40,7 +41,7 @@
 {
 
 	if (n == 0)
-		return 0;
+		return (0);
 	do {
 		if (*s1 != *s2++)
 			return (*(const unsigned char *)s1 -
@@ -48,5 +49,5 @@
 		if (*s1++ == '\0')
 			break;
 	} while (--n != 0);
-	return 0;
+	return (0);
 }
diff --git a/lib/stdlib/strncpy.c b/lib/libc/strncpy.c
similarity index 100%
rename from lib/stdlib/strncpy.c
rename to lib/libc/strncpy.c
diff --git a/lib/stdlib/strlen.c b/lib/libc/strnlen.c
similarity index 64%
rename from lib/stdlib/strlen.c
rename to lib/libc/strnlen.c
index ba2c5ea..b944e95 100644
--- a/lib/stdlib/strlen.c
+++ b/lib/libc/strnlen.c
@@ -1,6 +1,8 @@
 /*-
- * Copyright (c) 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -10,14 +12,11 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
@@ -28,18 +27,20 @@
  */
 
 /*
- * Portions copyright (c) 2009-2018, ARM Limited and Contributors.
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
  * All rights reserved.
  */
 
-#include <stddef.h>
+#include <string.h>
 
 size_t
-strlen(str)
-	const char *str;
+strnlen(const char *s, size_t maxlen)
 {
-	register const char *s;
+	size_t len;
 
-	for (s = str; *s; ++s);
-	return(s - str);
+	for (len = 0; len < maxlen; len++, s++) {
+		if (!*s)
+			break;
+	}
+	return (len);
 }
diff --git a/lib/stdlib/strchr.c b/lib/libc/strrchr.c
similarity index 83%
copy from lib/stdlib/strchr.c
copy to lib/libc/strrchr.c
index 0963cb4..cd435ff 100644
--- a/lib/stdlib/strchr.c
+++ b/lib/libc/strrchr.c
@@ -1,5 +1,7 @@
 /*-
- * Copyright (c) 1990, 1993
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1988, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -10,7 +12,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -27,26 +29,21 @@
  * SUCH DAMAGE.
  */
 
-/*
- * Portions copyright (c) 2013-2018, ARM Limited and Contributors.
- * All rights reserved.
- */
-
-#include <sys/cdefs.h>
 #include <stddef.h>
 #include <string.h>
 
 char *
-strchr(const char *p, int ch)
+strrchr(const char *p, int ch)
 {
+	char *save;
 	char c;
 
 	c = ch;
-	for (;; ++p) {
+	for (save = NULL;; ++p) {
 		if (*p == c)
-			return ((char *)p);
+			save = (char *)p;
 		if (*p == '\0')
-			return (NULL);
+			return (save);
 	}
 	/* NOTREACHED */
 }
diff --git a/lib/power_management/suspend/suspend_private.h b/lib/power_management/suspend/suspend_private.h
index dfc2e93..9949dc6 100644
--- a/lib/power_management/suspend/suspend_private.h
+++ b/lib/power_management/suspend/suspend_private.h
@@ -16,7 +16,6 @@
 #include <power_management.h>
 #include <stdint.h>
 #include <string.h>
-#include <types.h>
 
 #define NR_CTX_REGS 6
 
diff --git a/lib/stdlib/abort.c b/lib/stdlib/abort.c
deleted file mode 100644
index 5078033..0000000
--- a/lib/stdlib/abort.c
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <debug.h>
-
-/*
- * This is a basic implementation. This could be improved.
- */
-void abort (void)
-{
-	ERROR("ABORT\n");
-	panic();
-}
diff --git a/lib/stdlib/assert.c b/lib/stdlib/assert.c
deleted file mode 100644
index 4b53d1e..0000000
--- a/lib/stdlib/assert.c
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <stdio.h>
-
-/*
- * This is a basic implementation. This could be improved.
- */
-void __assert (const char *function, const char *file, unsigned int line,
-		const char *assertion)
-{
-	printf("ASSERT: %s <%d> : %s\n", function, line, assertion);
-
-	while (1)
-		;
-}
diff --git a/lib/stdlib/mem.c b/lib/stdlib/mem.c
deleted file mode 100644
index ec9dc2d..0000000
--- a/lib/stdlib/mem.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <stddef.h> /* size_t */
-
-/*
- * Fill @count bytes of memory pointed to by @dst with @val
- */
-void *memset(void *dst, int val, size_t count)
-{
-	char *ptr = dst;
-
-	while (count--)
-		*ptr++ = val;
-
-	return dst;
-}
-
-/*
- * Compare @len bytes of @s1 and @s2
- */
-int memcmp(const void *s1, const void *s2, size_t len)
-{
-	const char *s = s1;
-	const char *d = s2;
-	char dc;
-	char sc;
-
-	while (len--) {
-		sc = *s++;
-		dc = *d++;
-		if (sc - dc)
-			return (sc - dc);
-	}
-
-	return 0;
-}
-
-/*
- * Copy @len bytes from @src to @dst
- */
-void *memcpy(void *dst, const void *src, size_t len)
-{
-	const char *s = src;
-	char *d = dst;
-
-	while (len--)
-		*d++ = *s++;
-
-	return dst;
-}
-
-/*
- * Move @len bytes from @src to @dst
- */
-void *memmove(void *dst, const void *src, size_t len)
-{
-	/*
-	 * The following test makes use of unsigned arithmetic overflow to
-	 * more efficiently test the condition !(src <= dst && dst < str+len).
-	 * It also avoids the situation where the more explicit test would give
-	 * incorrect results were the calculation str+len to overflow (though
-	 * that issue is probably moot as such usage is probably undefined
-	 * behaviour and a bug anyway.
-	 */
-	if ((size_t)dst - (size_t)src >= len) {
-		/* destination not in source data, so can safely use memcpy */
-		return memcpy(dst, src, len);
-	} else {
-		/* copy backwards... */
-		const char *end = dst;
-		const char *s = (const char *)src + len;
-		char *d = (char *)dst + len;
-		while (d != end)
-			*--d = *--s;
-	}
-	return dst;
-}
-
-/*
- * Scan @len bytes of @src for value @c
- */
-void *memchr(const void *src, int c, size_t len)
-{
-	const char *s = src;
-
-	while (len--) {
-		if (*s == c)
-			return (void *) s;
-		s++;
-	}
-
-	return NULL;
-}
diff --git a/lib/stdlib/printf.c b/lib/stdlib/printf.c
deleted file mode 100644
index 8ae7c26..0000000
--- a/lib/stdlib/printf.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <stdarg.h>
-#include <stdio.h>
-
-/* Choose max of 512 chars for now. */
-#define PRINT_BUFFER_SIZE 512
-
-int vprintf(const char *fmt, va_list args)
-{
-	char buf[PRINT_BUFFER_SIZE];
-	int count;
-
-	vsnprintf(buf, sizeof(buf) - 1, fmt, args);
-	buf[PRINT_BUFFER_SIZE - 1] = '\0';
-
-	/* Use putchar directly as 'puts()' adds a newline. */
-	count = 0;
-	while (buf[count] != 0) {
-		if (putchar(buf[count]) == EOF) {
-			return EOF;
-		}
-		count++;
-	}
-
-	return count;
-}
-
-int printf(const char *fmt, ...)
-{
-	va_list args;
-
-	va_start(args, fmt);
-	int count = vprintf(fmt, args);
-	va_end(args);
-
-	return count;
-}
diff --git a/lib/stdlib/putchar.c b/lib/stdlib/putchar.c
deleted file mode 100644
index d330f58..0000000
--- a/lib/stdlib/putchar.c
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <drivers/console.h>
-#include <stdio.h>
-
-/* Putchar() should either return the character printed or EOF in case of error.
- * Our current console_putc() function assumes success and returns the
- * character. Write all other printing functions in terms of putchar(), if
- * possible, so they all benefit when this is improved.
- */
-int putchar(int c)
-{
-	int res;
-	if (console_putc((unsigned char)c) >= 0)
-		res = c;
-	else
-		res = EOF;
-
-	return res;
-}
diff --git a/lib/stdlib/puts.c b/lib/stdlib/puts.c
deleted file mode 100644
index 08283a3..0000000
--- a/lib/stdlib/puts.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <stdio.h>
-
-int puts(const char *s)
-{
-	int count = 0;
-	while(*s)
-	{
-		if (putchar(*s++) != EOF) {
-			count++;
-		} else {
-			count = EOF;
-			break;
-		}
-	}
-
-	/* According to the puts(3) manpage, the function should write a
-	 * trailing newline.
-	 */
-	if ((count != EOF) && (putchar('\n') != EOF))
-		count++;
-	else
-		count = EOF;
-
-	return count;
-}
diff --git a/lib/stdlib/subr_prf.c b/lib/stdlib/subr_prf.c
deleted file mode 100644
index 2e272d9..0000000
--- a/lib/stdlib/subr_prf.c
+++ /dev/null
@@ -1,548 +0,0 @@
-/*-
- * Copyright (c) 1986, 1988, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- * (c) UNIX System Laboratories, Inc.
- * All or some portions of this file are derived from material licensed
- * to the University of California by American Telephone and Telegraph
- * Co. or Unix System Laboratories, Inc. and are reproduced herein with
- * the permission of UNIX System Laboratories, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)subr_prf.c	8.3 (Berkeley) 1/21/94
- */
-
-/*
- * Portions copyright (c) 2009-2018, ARM Limited and Contributors.
- * All rights reserved.
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <stdarg.h>
-#include <stddef.h>
-#include <string.h>
-#include <ctype.h>
-
-typedef unsigned char u_char;
-typedef unsigned int u_int;
-typedef int64_t quad_t;
-typedef uint64_t u_quad_t;
-typedef unsigned long u_long;
-typedef unsigned short u_short;
-
-static inline int imax(int a, int b) { return (a > b ? a : b); }
-
-/*
- * Note that stdarg.h and the ANSI style va_start macro is used for both
- * ANSI and traditional C compilers.
- */
-
-#define TOCONS	0x01
-#define TOTTY	0x02
-#define TOLOG	0x04
-
-/* Max number conversion buffer length: a u_quad_t in base 2, plus NUL byte. */
-#define MAXNBUF	(sizeof(intmax_t) * 8 + 1)
-
-struct putchar_arg {
-	int	flags;
-	int	pri;
-	struct	tty *tty;
-	char	*p_bufr;
-	size_t	n_bufr;
-	char	*p_next;
-	size_t	remain;
-};
-
-struct snprintf_arg {
-	char	*str;
-	size_t	remain;
-};
-
-extern	int log_open;
-
-static char *ksprintn(char *nbuf, uintmax_t num, int base, int *len, int upper);
-static void  snprintf_func(int ch, void *arg);
-static int kvprintf(char const *fmt, void (*func)(int, void*), void *arg, int radix, va_list ap);
-
-int vsnprintf(char *str, size_t size, const char *format, va_list ap);
-
-static char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
-#define hex2ascii(hex) (hex2ascii_data[hex])
-
-/*
- * Scaled down version of sprintf(3).
- */
-int
-sprintf(char *buf, const char *cfmt, ...)
-{
-	int retval;
-	va_list ap;
-
-	va_start(ap, cfmt);
-	retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap);
-	buf[retval] = '\0';
-	va_end(ap);
-	return (retval);
-}
-
-/*
- * Scaled down version of vsprintf(3).
- */
-int
-vsprintf(char *buf, const char *cfmt, va_list ap)
-{
-	int retval;
-
-	retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap);
-	buf[retval] = '\0';
-	return (retval);
-}
-
-/*
- * Scaled down version of snprintf(3).
- */
-int
-snprintf(char *str, size_t size, const char *format, ...)
-{
-	int retval;
-	va_list ap;
-
-	va_start(ap, format);
-	retval = vsnprintf(str, size, format, ap);
-	va_end(ap);
-	return(retval);
-}
-
-/*
- * Scaled down version of vsnprintf(3).
- */
-int
-vsnprintf(char *str, size_t size, const char *format, va_list ap)
-{
-	struct snprintf_arg info;
-	int retval;
-
-	info.str = str;
-	info.remain = size;
-	retval = kvprintf(format, snprintf_func, &info, 10, ap);
-	if (info.remain >= 1)
-		*info.str++ = '\0';
-	return (retval);
-}
-
-static void
-snprintf_func(int ch, void *arg)
-{
-	struct snprintf_arg *const info = arg;
-
-	if (info->remain >= 2) {
-		*info->str++ = ch;
-		info->remain--;
-	}
-}
-
-
-/*
- * Kernel version which takes radix argument vsnprintf(3).
- */
-int
-vsnrprintf(char *str, size_t size, int radix, const char *format, va_list ap)
-{
-	struct snprintf_arg info;
-	int retval;
-
-	info.str = str;
-	info.remain = size;
-	retval = kvprintf(format, snprintf_func, &info, radix, ap);
-	if (info.remain >= 1)
-		*info.str++ = '\0';
-	return (retval);
-}
-
-
-/*
- * Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
- * order; return an optional length and a pointer to the last character
- * written in the buffer (i.e., the first character of the string).
- * The buffer pointed to by `nbuf' must have length >= MAXNBUF.
- */
-static char *
-ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
-{
-	char *p, c;
-
-	p = nbuf;
-	*p = '\0';
-	do {
-		c = hex2ascii(num % base);
-		*++p = upper ? toupper(c) : c;
-	} while (num /= base);
-	if (lenp)
-		*lenp = p - nbuf;
-	return (p);
-}
-
-/*
- * Scaled down version of printf(3).
- *
- * Two additional formats:
- *
- * The format %b is supported to decode error registers.
- * Its usage is:
- *
- *	printf("reg=%b\n", regval, "<base><arg>*");
- *
- * where <base> is the output base expressed as a control character, e.g.
- * \10 gives octal; \20 gives hex.  Each arg is a sequence of characters,
- * the first of which gives the bit number to be inspected (origin 1), and
- * the next characters (up to a control character, i.e. a character <= 32),
- * give the name of the register.  Thus:
- *
- *	kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
- *
- * would produce output:
- *
- *	reg=3<BITTWO,BITONE>
- *
- * XXX:  %D  -- Hexdump, takes pointer and separator string:
- *		("%6D", ptr, ":")   -> XX:XX:XX:XX:XX:XX
- *		("%*D", len, ptr, " " -> XX XX XX XX ...
- */
-int
-kvprintf(char const *fmt, void (*func)(int, void*), void *arg, int radix, va_list ap)
-{
-#define PCHAR(c) {int cc=(c); if (func) (*func)(cc,arg); else *d++ = cc; retval++; }
-	char nbuf[MAXNBUF];
-	char *d;
-	const char *p, *percent, *q;
-	u_char *up;
-	int ch, n;
-	uintmax_t num;
-	int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
-	int cflag, hflag, jflag, tflag, zflag;
-	int dwidth, upper;
-	char padc;
-	int stop = 0, retval = 0;
-
-	num = 0;
-	if (!func)
-		d = (char *) arg;
-	else
-		d = NULL;
-
-	if (fmt == NULL)
-		fmt = "(fmt null)\n";
-
-	if (radix < 2 || radix > 36)
-		radix = 10;
-
-	for (;;) {
-		padc = ' ';
-		width = 0;
-		while ((ch = (u_char)*fmt++) != '%' || stop) {
-			if (ch == '\0')
-				return (retval);
-			PCHAR(ch);
-		}
-		percent = fmt - 1;
-		qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
-		sign = 0; dot = 0; dwidth = 0; upper = 0;
-		cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
-reswitch:	switch (ch = (u_char)*fmt++) {
-		case '.':
-			dot = 1;
-			goto reswitch;
-		case '#':
-			sharpflag = 1;
-			goto reswitch;
-		case '+':
-			sign = 1;
-			goto reswitch;
-		case '-':
-			ladjust = 1;
-			goto reswitch;
-		case '%':
-			PCHAR(ch);
-			break;
-		case '*':
-			if (!dot) {
-				width = va_arg(ap, int);
-				if (width < 0) {
-					ladjust = !ladjust;
-					width = -width;
-				}
-			} else {
-				dwidth = va_arg(ap, int);
-			}
-			goto reswitch;
-		case '0':
-			if (!dot) {
-				padc = '0';
-				goto reswitch;
-			}
-		case '1': case '2': case '3': case '4':
-		case '5': case '6': case '7': case '8': case '9':
-				for (n = 0;; ++fmt) {
-					n = n * 10 + ch - '0';
-					ch = *fmt;
-					if (ch < '0' || ch > '9')
-						break;
-				}
-			if (dot)
-				dwidth = n;
-			else
-				width = n;
-			goto reswitch;
-		case 'b':
-			num = (u_int)va_arg(ap, int);
-			p = va_arg(ap, char *);
-			for (q = ksprintn(nbuf, num, *p++, NULL, 0); *q;)
-				PCHAR(*q--);
-
-			if (num == 0)
-				break;
-
-			for (tmp = 0; *p;) {
-				n = *p++;
-				if (num & (1 << (n - 1))) {
-					PCHAR(tmp ? ',' : '<');
-					for (; (n = *p) > ' '; ++p)
-						PCHAR(n);
-					tmp = 1;
-				} else
-					for (; *p > ' '; ++p)
-						continue;
-			}
-			if (tmp)
-				PCHAR('>');
-			break;
-		case 'c':
-			PCHAR(va_arg(ap, int));
-			break;
-		case 'D':
-			up = va_arg(ap, u_char *);
-			p = va_arg(ap, char *);
-			if (!width)
-				width = 16;
-			while(width--) {
-				PCHAR(hex2ascii(*up >> 4));
-				PCHAR(hex2ascii(*up & 0x0f));
-				up++;
-				if (width)
-					for (q=p;*q;q++)
-						PCHAR(*q);
-			}
-			break;
-		case 'd':
-		case 'i':
-			base = 10;
-			sign = 1;
-			goto handle_sign;
-		case 'h':
-			if (hflag) {
-				hflag = 0;
-				cflag = 1;
-			} else
-				hflag = 1;
-			goto reswitch;
-		case 'j':
-			jflag = 1;
-			goto reswitch;
-		case 'l':
-			if (lflag) {
-				lflag = 0;
-				qflag = 1;
-			} else
-				lflag = 1;
-			goto reswitch;
-		case 'n':
-			if (jflag)
-				*(va_arg(ap, intmax_t *)) = retval;
-			else if (qflag)
-				*(va_arg(ap, quad_t *)) = retval;
-			else if (lflag)
-				*(va_arg(ap, long *)) = retval;
-			else if (zflag)
-				*(va_arg(ap, size_t *)) = retval;
-			else if (hflag)
-				*(va_arg(ap, short *)) = retval;
-			else if (cflag)
-				*(va_arg(ap, char *)) = retval;
-			else
-				*(va_arg(ap, int *)) = retval;
-			break;
-		case 'o':
-			base = 8;
-			goto handle_nosign;
-		case 'p':
-			base = 16;
-			sharpflag = (width == 0);
-			sign = 0;
-			num = (uintptr_t)va_arg(ap, void *);
-			goto number;
-		case 'q':
-			qflag = 1;
-			goto reswitch;
-		case 'r':
-			base = radix;
-			if (sign)
-				goto handle_sign;
-			goto handle_nosign;
-		case 's':
-			p = va_arg(ap, char *);
-			if (p == NULL)
-				p = "(null)";
-			if (!dot)
-				n = strlen (p);
-			else
-				for (n = 0; n < dwidth && p[n]; n++)
-					continue;
-
-			width -= n;
-
-			if (!ladjust && width > 0)
-				while (width--)
-					PCHAR(padc);
-			while (n--)
-				PCHAR(*p++);
-			if (ladjust && width > 0)
-				while (width--)
-					PCHAR(padc);
-			break;
-		case 't':
-			tflag = 1;
-			goto reswitch;
-		case 'u':
-			base = 10;
-			goto handle_nosign;
-		case 'X':
-			upper = 1;
-		case 'x':
-			base = 16;
-			goto handle_nosign;
-		case 'y':
-			base = 16;
-			sign = 1;
-			goto handle_sign;
-		case 'z':
-			zflag = 1;
-			goto reswitch;
-handle_nosign:
-			sign = 0;
-			if (jflag)
-				num = va_arg(ap, uintmax_t);
-			else if (qflag)
-				num = va_arg(ap, u_quad_t);
-			else if (tflag)
-				num = va_arg(ap, ptrdiff_t);
-			else if (lflag)
-				num = va_arg(ap, u_long);
-			else if (zflag)
-				num = va_arg(ap, size_t);
-			else if (hflag)
-				num = (u_short)va_arg(ap, int);
-			else if (cflag)
-				num = (u_char)va_arg(ap, int);
-			else
-				num = va_arg(ap, u_int);
-			goto number;
-handle_sign:
-			if (jflag)
-				num = va_arg(ap, intmax_t);
-			else if (qflag)
-				num = va_arg(ap, quad_t);
-			else if (tflag)
-				num = va_arg(ap, ptrdiff_t);
-			else if (lflag)
-				num = va_arg(ap, long);
-			else if (zflag)
-				num = va_arg(ap, ssize_t);
-			else if (hflag)
-				num = (short)va_arg(ap, int);
-			else if (cflag)
-				num = (char)va_arg(ap, int);
-			else
-				num = va_arg(ap, int);
-number:
-			if (sign && (intmax_t)num < 0) {
-				neg = 1;
-				num = -(intmax_t)num;
-			}
-			p = ksprintn(nbuf, num, base, &n, upper);
-			tmp = 0;
-			if (sharpflag && num != 0) {
-				if (base == 8)
-					tmp++;
-				else if (base == 16)
-					tmp += 2;
-			}
-			if (neg)
-				tmp++;
-
-			if (!ladjust && padc == '0')
-				dwidth = width - tmp;
-			width -= tmp + imax(dwidth, n);
-			dwidth -= n;
-			if (!ladjust)
-				while (width-- > 0)
-					PCHAR(' ');
-			if (neg)
-				PCHAR('-');
-			if (sharpflag && num != 0) {
-				if (base == 8) {
-					PCHAR('0');
-				} else if (base == 16) {
-					PCHAR('0');
-					PCHAR('x');
-				}
-			}
-			while (dwidth-- > 0)
-				PCHAR('0');
-
-			while (*p)
-				PCHAR(*p--);
-
-			if (ladjust)
-				while (width-- > 0)
-					PCHAR(' ');
-
-			break;
-		default:
-			while (percent < fmt)
-				PCHAR(*percent++);
-			/*
-			 * Since we ignore an formatting argument it is no 
-			 * longer safe to obey the remaining formatting
-			 * arguments as the arguments will no longer match
-			 * the format specs.
-			 */
-			stop = 1;
-			break;
-		}
-	}
-#undef PCHAR
-}
diff --git a/lib/utils/uuid.c b/lib/utils/uuid.c
index 21747a2..2c79dfb 100644
--- a/lib/utils/uuid.c
+++ b/lib/utils/uuid.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, Arm Limited. All rights reserved.
+ * Copyright (c) 2018-2019, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -10,8 +10,8 @@
 #include <uuid_utils.h>
 
 /* Format string to print a UUID */
-static const char *uuid_str_fmt = "{ 0x%.8x, 0x%.4x, 0x%.4x, 0x%.2x, 0x%.2x, "
-	"0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x }";
+static const char *uuid_str_fmt = "{ 0x%08x, 0x%04x, 0x%04x, 0x%02x, 0x%02x, "
+	"0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x }";
 
 
 unsigned int is_uuid_null(const uuid_t *uuid)
diff --git a/readme.rst b/readme.rst
index 1512545..667d64b 100644
--- a/readme.rst
+++ b/readme.rst
@@ -41,8 +41,9 @@
 This project contains code from other projects as listed below. The original
 license text is included in those source files.
 
--  The libc source code is derived from `FreeBSD`_ code, which uses various BSD
-   licenses, including BSD-3-Clause and BSD-2-Clause.
+-  The libc source code is derived from `FreeBSD`_ and `SCC`_. FreeBSD uses
+   various BSD licenses, including BSD-3-Clause and BSD-2-Clause. The SCC code
+   is used under the BSD-3-Clause license with the author's permission.
 
 -  The `LLVM compiler-rt`_ source code is disjunctively dual licensed
    (NCSA OR MIT). It is used by this project under the terms of the NCSA
@@ -94,11 +95,14 @@
 System Guidance for Infrastructure Fixed Virtual Platforms
 ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
 
-The AArch64 build has been tested on the following SGI Fixed Virtual Platforms
+The AArch64 build has been tested on the following Fixed Virtual Platforms
 (`FVP`_):
 -  ``FVP_CSS_SGI-575``
+-  ``FVP_RD_N1Edge``
 
-NOTE: For ``FVP_CSS_SGI-575``, the model version is 11.4, build 40
+NOTE:
+-  For ``FVP_CSS_SGI-575``, the model version is 11.4, build 40
+-  For ``FVP_RD_N1Edge``, the model version is 11.6, build 29
 
 Still to come
 `````````````
@@ -138,7 +142,7 @@
 
 --------------
 
-*Copyright (c) 2018, Arm Limited. All rights reserved.*
+*Copyright (c) 2018-2019, Arm Limited. All rights reserved.*
 
 .. _Contributing Guidelines: contributing.rst
 .. _license: license.rst
@@ -151,6 +155,7 @@
 .. _Juno Arm Development Platform: https://developer.arm.com/products/system-design/development-boards/juno-development-board
 
 .. _FreeBSD: http://www.freebsd.org
+.. _SCC: http://www.simple-cc.org/
 .. _LLVM compiler-rt: https://compiler-rt.llvm.org/
 
 .. _Power State Coordination Interface (PSCI): PSCI_
diff --git a/spm/cactus/cactus.h b/spm/cactus/cactus.h
index 2f12f5c..0b06eb2 100644
--- a/spm/cactus/cactus.h
+++ b/spm/cactus/cactus.h
@@ -7,7 +7,7 @@
 #ifndef __CACTUS_H__
 #define __CACTUS_H__
 
-#include <types.h>
+#include <stdint.h>
 
 /* Linker symbols used to figure out the memory layout of Cactus. */
 extern uintptr_t __TEXT_START__, __TEXT_END__;
diff --git a/spm/cactus/cactus.mk b/spm/cactus/cactus.mk
index 056b4a7..d964ab1 100644
--- a/spm/cactus/cactus.mk
+++ b/spm/cactus/cactus.mk
@@ -14,8 +14,6 @@
 	-Iinclude/common/${ARCH}			\
 	-Iinclude/lib					\
 	-Iinclude/lib/${ARCH}				\
-	-Iinclude/lib/stdlib				\
-	-Iinclude/lib/stdlib/sys			\
 	-Iinclude/lib/sprt				\
 	-Iinclude/lib/utils				\
 	-Iinclude/lib/xlat_tables			\
@@ -38,16 +36,6 @@
 		sp_helpers.c				\
 	)						\
 
-STDLIB_SOURCES	:=	$(addprefix lib/stdlib/,	\
-	assert.c					\
-	mem.c						\
-	putchar.c					\
-	printf.c					\
-	rand.c						\
-	strlen.c					\
-	subr_prf.c					\
-)
-
 # TODO: Remove dependency on TFTF files.
 CACTUS_SOURCES	+=					\
 	tftf/framework/debug.c				\
@@ -58,7 +46,6 @@
 			lib/${ARCH}/misc_helpers.S			\
 			lib/locks/${ARCH}/spinlock.S			\
 			lib/utils/mp_printf.c				\
-			${STDLIB_SOURCES}				\
 			${SPRT_LIB_SOURCES}
 
 CACTUS_LINKERFILE	:=	spm/cactus/cactus.ld.S
diff --git a/spm/cactus/cactus_tests_memory_attributes.c b/spm/cactus/cactus_tests_memory_attributes.c
index 3b56d60..bed6f0b 100644
--- a/spm/cactus/cactus_tests_memory_attributes.c
+++ b/spm/cactus/cactus_tests_memory_attributes.c
@@ -12,7 +12,7 @@
 #include <sp_helpers.h>
 #include <sprt_svc.h>
 #include <stdio.h>
-#include <types.h>
+#include <stdint.h>
 #include <xlat_tables_defs.h>
 
 #include "cactus.h"
diff --git a/spm/cactus/cactus_tests_misc.c b/spm/cactus/cactus_tests_misc.c
index 50b8e6a..39eb752 100644
--- a/spm/cactus/cactus_tests_misc.c
+++ b/spm/cactus/cactus_tests_misc.c
@@ -11,7 +11,7 @@
 #include <spm_svc.h>
 #include <sprt_client.h>
 #include <sprt_svc.h>
-#include <types.h>
+#include <stdint.h>
 
 #include "cactus.h"
 #include "cactus_tests.h"
diff --git a/spm/cactus/cactus_tests_system_setup.c b/spm/cactus/cactus_tests_system_setup.c
index 685d82d..cead8e3 100644
--- a/spm/cactus/cactus_tests_system_setup.c
+++ b/spm/cactus/cactus_tests_system_setup.c
@@ -7,7 +7,7 @@
 #include <arch_helpers.h>
 #include <debug.h>
 #include <sp_helpers.h>
-#include <types.h>
+#include <stdint.h>
 
 #include "cactus.h"
 
diff --git a/spm/common/sp_helpers.h b/spm/common/sp_helpers.h
index 1bd4425..d06fec3 100644
--- a/spm/common/sp_helpers.h
+++ b/spm/common/sp_helpers.h
@@ -8,7 +8,6 @@
 #define SP_HELPERS_H
 
 #include <stdint.h>
-#include <sys/types.h>
 
 typedef struct {
 	u_register_t fid;
diff --git a/spm/ivy/ivy.h b/spm/ivy/ivy.h
index b312540..c5cac2e 100644
--- a/spm/ivy/ivy.h
+++ b/spm/ivy/ivy.h
@@ -7,7 +7,7 @@
 #ifndef IVY_H
 #define IVY_H
 
-#include <types.h>
+#include <stdint.h>
 
 /* Linker symbols used to figure out the memory layout of Ivy. */
 extern uintptr_t __TEXT_START__, __TEXT_END__;
diff --git a/spm/ivy/ivy.mk b/spm/ivy/ivy.mk
index 244d209..5a6ccf0 100644
--- a/spm/ivy/ivy.mk
+++ b/spm/ivy/ivy.mk
@@ -14,8 +14,6 @@
 	-Iinclude/common/${ARCH}			\
 	-Iinclude/lib					\
 	-Iinclude/lib/${ARCH}				\
-	-Iinclude/lib/stdlib				\
-	-Iinclude/lib/stdlib/sys			\
 	-Iinclude/lib/sprt				\
 	-Iinclude/lib/utils				\
 	-Iinclude/lib/xlat_tables			\
@@ -35,16 +33,6 @@
 		sp_helpers.c				\
 	)						\
 
-STDLIB_SOURCES	:=	$(addprefix lib/stdlib/,	\
-	assert.c					\
-	mem.c						\
-	putchar.c					\
-	printf.c					\
-	rand.c						\
-	strlen.c					\
-	subr_prf.c					\
-)
-
 # TODO: Remove dependency on TFTF files.
 IVY_SOURCES	+=					\
 	tftf/framework/debug.c				\
@@ -55,7 +43,6 @@
 			lib/${ARCH}/misc_helpers.S			\
 			lib/locks/${ARCH}/spinlock.S			\
 			lib/utils/mp_printf.c				\
-			${STDLIB_SOURCES}				\
 			${SPRT_LIB_SOURCES}
 
 IVY_LINKERFILE	:=	spm/ivy/ivy.ld.S
diff --git a/tftf/framework/framework.mk b/tftf/framework/framework.mk
index 36b29b2..d51a246 100644
--- a/tftf/framework/framework.mk
+++ b/tftf/framework/framework.mk
@@ -18,8 +18,6 @@
 	-Iinclude/lib					\
 	-Iinclude/lib/${ARCH}				\
 	-Iinclude/lib/extensions			\
-	-Iinclude/lib/stdlib				\
-	-Iinclude/lib/stdlib/sys			\
 	-Iinclude/lib/utils				\
 	-Iinclude/lib/xlat_tables			\
 	-Iinclude/plat/common				\
@@ -29,21 +27,6 @@
 	-Ispm/cactus					\
 	-Ispm/ivy
 
-# Standard C library source files
-STD_LIB_SOURCES		:=	lib/stdlib/abort.c			\
-				lib/stdlib/assert.c			\
-				lib/stdlib/mem.c			\
-				lib/stdlib/printf.c			\
-				lib/stdlib/putchar.c			\
-				lib/stdlib/puts.c			\
-				lib/stdlib/rand.c			\
-				lib/stdlib/strchr.c			\
-				lib/stdlib/strcmp.c			\
-				lib/stdlib/strlen.c			\
-				lib/stdlib/strncmp.c			\
-				lib/stdlib/strncpy.c			\
-				lib/stdlib/subr_prf.c
-
 FRAMEWORK_SOURCES	:=	${AUTOGEN_DIR}/tests_list.c
 
 FRAMEWORK_SOURCES	+=	$(addprefix tftf/,			\
@@ -76,7 +59,6 @@
 	lib/sdei/sdei.c							\
 	lib/smc/${ARCH}/asm_smc.S					\
 	lib/smc/${ARCH}/smc.c						\
-	${STD_LIB_SOURCES}						\
 	lib/trusted_os/trusted_os.c					\
 	lib/utils/mp_printf.c						\
 	lib/utils/uuid.c						\
diff --git a/tftf/framework/main.c b/tftf/framework/main.c
index 7f987c0..67f565d 100644
--- a/tftf/framework/main.c
+++ b/tftf/framework/main.c
@@ -17,8 +17,8 @@
 #include <power_management.h>
 #include <psci.h>
 #include <sgi.h>
+#include <stdint.h>
 #include <string.h>
-#include <sys/types.h>
 #include <tftf.h>
 #include <tftf_lib.h>
 #include <timer.h>
diff --git a/tftf/framework/nvm_results_helpers.c b/tftf/framework/nvm_results_helpers.c
index 34ef19f..78df642 100644
--- a/tftf/framework/nvm_results_helpers.c
+++ b/tftf/framework/nvm_results_helpers.c
@@ -4,14 +4,18 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+/*
+ * The include of stdarg.h is not in alphabetical order because it needs to be
+ * included before stdio.h. Fixing this would require further changes.
+ */
 #include <arch_helpers.h>
+#include <stdarg.h>
 #include <assert.h>
 #include <debug.h>
 #include <nvm.h>
 #include <platform.h>
 #include <spinlock.h>
-#include <stdarg.h>
-#include <string.h>
+#include <stdio.h>
 
 /*
  * Temporary buffer to store 1 test output.
diff --git a/tftf/framework/timer/timer_framework.c b/tftf/framework/timer/timer_framework.c
index 38106cf..d856abe 100644
--- a/tftf/framework/timer/timer_framework.c
+++ b/tftf/framework/timer/timer_framework.c
@@ -17,7 +17,7 @@
 #include <sgi.h>
 #include <spinlock.h>
 #include <stddef.h>
-#include <sys/types.h>
+#include <stdint.h>
 #include <tftf.h>
 #include <timer.h>
 
diff --git a/tftf/tests/runtime_services/standard_service/pmf/api_tests/runtime_instr/test_pmf_rt_instr.c b/tftf/tests/runtime_services/standard_service/pmf/api_tests/runtime_instr/test_pmf_rt_instr.c
index 3a3701e..3c1fdaf 100644
--- a/tftf/tests/runtime_services/standard_service/pmf/api_tests/runtime_instr/test_pmf_rt_instr.c
+++ b/tftf/tests/runtime_services/standard_service/pmf/api_tests/runtime_instr/test_pmf_rt_instr.c
@@ -13,7 +13,7 @@
 #include <psci.h>
 #include <smccc.h>
 #include <string.h>
-#include <sys/errno.h>
+#include <errno.h>
 #include <tftf_lib.h>
 #include <timer.h>