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| author | Andreas Jaeger <aj@suse.de> | 2004-01-22 08:17:42 +0000 |
|---|---|---|
| committer | Andreas Jaeger <aj@suse.de> | 2004-01-22 08:17:42 +0000 |
| commit | 4ef0929571b55d93f88fa42d167804938af37fad (patch) | |
| tree | ea0697c6e75ed07407c66b96bfa1e53e167b7858 /sysdeps | |
| parent | e11676dd1c81cb5a6ca39455874050a4d3fe0245 (diff) | |
| download | glibc-4ef0929571b55d93f88fa42d167804938af37fad.tar.gz glibc-4ef0929571b55d93f88fa42d167804938af37fad.tar.xz glibc-4ef0929571b55d93f88fa42d167804938af37fad.zip | |
Add proper unwind information.
2004-01-22 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/x86_64/setcontext.S: Add proper unwind information.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/setcontext.S | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/setcontext.S b/sysdeps/unix/sysv/linux/x86_64/setcontext.S index e3d770bcc6..65c03d8a01 100644 --- a/sysdeps/unix/sysv/linux/x86_64/setcontext.S +++ b/sysdeps/unix/sysv/linux/x86_64/setcontext.S @@ -1,5 +1,5 @@ /* Install given context. - Copyright (C) 2002 Free Software Foundation, Inc. + Copyright (C) 2002, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger <aj@suse.de>, 2002. @@ -35,6 +35,7 @@ ENTRY(__setcontext) /* Save argument since syscall will destroy it. */ pushq %rdi + cfi_adjust_cfa_offset(8) /* Set the signal mask with rt_sigprocmask (SIG_SETMASK, mask, NULL, _NSIG/8). */ @@ -45,6 +46,7 @@ ENTRY(__setcontext) movq $__NR_rt_sigprocmask, %rax syscall popq %rdi /* Reload %rdi, adjust stack. */ + cfi_adjust_cfa_offset(-8) cmpq $-4095, %rax /* Check %rax for error. */ jae SYSCALL_ERROR_LABEL /* Jump to error handler if error. */ @@ -57,6 +59,16 @@ ENTRY(__setcontext) /* Load the new stack pointer, the preserved registers and registers used for passing args. */ + cfi_def_cfa(%rdi, 0) + cfi_offset(%rbx,oRBX) + cfi_offset(%rbp,oRBP) + cfi_offset(%r12,oR12) + cfi_offset(%r13,oR13) + cfi_offset(%r14,oR14) + cfi_offset(%r15,oR15) + cfi_offset(%rsp,oRSP) + cfi_offset(%rip,oRIP) + movq oRSP(%rdi), %rsp movq oRBX(%rdi), %rbx movq oRBP(%rdi), %rbp @@ -79,6 +91,10 @@ ENTRY(__setcontext) /* Setup finally %rdi. */ movq oRDI(%rdi), %rdi + /* End FDE here, we fall into another context. */ + cfi_endproc + cfi_startproc + /* Clear rax to indicate success. */ xorq %rax, %rax |