aboutsummaryrefslogtreecommitdiff
path: root/lib/aarch64
diff options
context:
space:
mode:
authorAntonio Niño Díaz <antonio.ninodiaz@arm.com>2019-02-11 09:58:53 +0000
committerGitHub <noreply@github.com>2019-02-11 09:58:53 +0000
commit873e394b3bf93214a441f9f98237b58fbbea55aa (patch)
tree9502a299d22c782c284d604a5fada651c2680c91 /lib/aarch64
parent9beee98acc6af787b4e56a2b34a6545b0c36f829 (diff)
parent70b0f2789e93f253bec5cbd2986d0de023c1bdf4 (diff)
downloadtrusted-firmware-a-873e394b3bf93214a441f9f98237b58fbbea55aa.tar.gz
Merge pull request #1810 from antonio-nino-diaz-arm/an/setjmp
Make setjmp/longjmp compliant with the C standard and move them to libc
Diffstat (limited to 'lib/aarch64')
-rw-r--r--lib/aarch64/setjmp.S65
1 files changed, 0 insertions, 65 deletions
diff --git a/lib/aarch64/setjmp.S b/lib/aarch64/setjmp.S
deleted file mode 100644
index 9060cb7569..0000000000
--- a/lib/aarch64/setjmp.S
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (c) 2018, 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(struct jmpbuf *buf);
- *
- * Sets a jump point in the buffer specified in x0. Returns 0 to the caller when
- * when setting up the jump, and 1 when returning from the jump.
- */
-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(struct jmpbuf *buf);
- *
- * Return to a jump point setup by setjmp()
- */
-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
-
- mov x0, #1
- ret
-endfunc longjmp