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2003-05-30  Andreas Jaeger  <aj@suse.de>

	* sysdeps/x86_64/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
	Add CFI directives.

	* sysdeps/unix/sysv/linux/x86_64/sigaction.c (RESTORE2): Add CFI
	directives.

	* sysdeps/generic/sysdep.h: Add CFI_* macros for C files.

	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (SYSCALL_ERROR_HANDLER):
	Add CFI directives.
This commit is contained in:
Andreas Jaeger
2003-05-30 16:12:18 +00:00
parent b34f9a90b1
commit 2b1c0eeae3
5 changed files with 88 additions and 33 deletions
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5
sysdeps/unix/sysv/linux/x86_64/sigaction.c
View File

@@ -97,14 +97,15 @@ weak_alias (__libc_sigaction, sigaction)
appropriate GDB maintainer. */
#define RESTORE(name, syscall) RESTORE2 (name, syscall)
#define RESTORE2(name, syscall) \
# define RESTORE2(name, syscall) \
asm \
( \
".align 16\n" \
CFI_STARTPROC "\n" \
"__" #name ":\n" \
" movq $" #syscall ", %rax\n" \
" syscall\n" \
CFI_ENDPROC "\n" \
);
/* The return code for realtime-signals. */
RESTORE (restore_rt, __NR_rt_sigreturn)

4
sysdeps/unix/sysv/linux/x86_64/sysdep.h
View File

@@ -132,11 +132,13 @@
0: \
xorq %rdx, %rdx; \
subq %rax, %rdx; \
pushq %rdx \
pushq %rdx; \
cfi_adjust_cfa_offset(8); \
PUSH_ERRNO_LOCATION_RETURN; \
call BP_SYM (__errno_location)@PLT; \
POP_ERRNO_LOCATION_RETURN; \
popq %rdx; \
cfi_adjust_cfa_offset(-8); \
movl %edx, (%rax); \
orq $-1, %rax; \
jmp L(pseudo_end);