Retro68/gcc/libsanitizer/sanitizer_common/sanitizer_linux_x86_64.S
2018-12-28 16:30:48 +01:00

28 lines
891 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"
#include "cet.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)
_CET_ENDBR
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__)