From dffead4e421e289c8434351400d24fd35723e874 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Mon, 26 Jun 2006 13:57:38 +0200 Subject: [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 Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/entry.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86_64/kernel') diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index 4f407ef..7290e72 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 -- cgit v1.1