gcc/libsanitizer/sanitizer_common/sanitizer_linux_x86_64.S
Martin Liska eac9753122 backport: All source files: Merge from upstream 345033.
Merge from upstream 345033.

2018-10-31  Martin Liska  <mliska@suse.cz>

	* All source files: Merge from upstream 345033.

From-SVN: r265665
2018-10-31 11:14:23 +00:00

26 lines
862 B
ArmAsm

// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Avoid being marked as needing an executable stack:
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#endif
// Further contents are x86_64-only:
#if defined(__linux__) && defined(__x86_64__)
#include "../builtins/assembly.h"
// If the "naked" function attribute were supported for x86 we could
// do this via inline asm.
.text
.balign 4
DEFINE_COMPILERRT_FUNCTION(internal_sigreturn)
mov $0xf, %eax // 0xf == SYS_rt_sigreturn
mov %rcx, %r10
syscall
ret // Won't normally reach here.
END_COMPILERRT_FUNCTION(internal_sigreturn)
#endif // defined(__linux__) && defined(__x86_64__)