diff options
| author | Jan Beulich <jbeulich@novell.com> | 2006-06-26 13:57:38 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 10:48:17 -0700 |
| commit | dffead4e421e289c8434351400d24fd35723e874 (patch) | |
| tree | 8b95fac885640f1abfa4b67758b3fb6a521e061a | |
| parent | 1de9c3f67ec6fddfb85325bab551f4094f55f410 (diff) | |
[PATCH] x86_64: reliable stack trace support (x86-64 syscall
Adjust the CFA offset for 64- and 32-bit syscall entries so that the five
slots pre-subtracted from the stack pointer do not appear to reside outside
of the current frame.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/x86_64/ia32/ia32entry.S | 2 | ||||
| -rw-r--r-- | arch/x86_64/kernel/entry.S | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S index d073ca34d4f..222777b2614 100644 --- a/arch/x86_64/ia32/ia32entry.S +++ b/arch/x86_64/ia32/ia32entry.S @@ -179,7 +179,7 @@ ENDPROC(ia32_sysenter_target) */ ENTRY(ia32_cstar_target) CFI_STARTPROC32 simple - CFI_DEF_CFA rsp,0 + CFI_DEF_CFA rsp,PDA_STACKOFFSET CFI_REGISTER rip,rcx /*CFI_REGISTER rflags,r11*/ swapgs diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index 4f407ef6b86..7290e72b9a3 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -189,7 +189,7 @@ END(ret_from_fork) ENTRY(system_call) CFI_STARTPROC simple - CFI_DEF_CFA rsp,0 + CFI_DEF_CFA rsp,PDA_STACKOFFSET CFI_REGISTER rip,rcx /*CFI_REGISTER rflags,r11*/ swapgs |