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author | Soby Mathew <soby.mathew@arm.com> | 2014-07-14 16:58:03 +0100 |
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committer | Soby Mathew <soby.mathew@arm.com> | 2014-07-28 11:01:49 +0100 |
commit | bc9201289c9ae4ccfc6b11048431d47eba547a44 (patch) | |
tree | df1daa872e1231f48cdc2b2ac524940d82af9398 /include | |
parent | c67b09bd2cf04cac2160968907f0a9fc65472a11 (diff) | |
download | trusted-firmware-a-bc9201289c9ae4ccfc6b11048431d47eba547a44.tar.gz |
Implement an assert() callable from assembly code
The patch implements a macro ASM_ASSERT() which can
be invoked from assembly code. When assertion happens,
file name and line number of the check is written
to the crash console.
Fixes ARM-software/tf-issues#95
Change-Id: I6f905a068e1c0fa4f746d723f18df60daaa00a86
Diffstat (limited to 'include')
-rw-r--r-- | include/common/assert_macros.S | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/common/assert_macros.S b/include/common/assert_macros.S new file mode 100644 index 0000000000..45d699bd93 --- /dev/null +++ b/include/common/assert_macros.S @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 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. + * + * Neither the name of ARM 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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. + */ + + /* + * Assembler macro to enable asm_assert. Use this macro wherever + * assert is required in assembly. + */ +#define ASM_ASSERT(_cc) \ +.ifndef .L_assert_filename ;\ + .pushsection .rodata.str1.1, "aS" ;\ + .L_assert_filename: ;\ + .string __FILE__ ;\ + .popsection ;\ +.endif ;\ + b._cc 1f ;\ + adr x0, .L_assert_filename ;\ + mov x1, __LINE__ ;\ + b asm_assert ;\ +1: |