From: Steven Rostedt Date: Tue, 2 Dec 2008 20:34:09 +0000 (-0500) Subject: ftrace: have function graph use mcount caller address X-Git-Tag: upstream/snapshot3+hdmi~18679^2~438^2~9 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bb4304c71c97bf727ec43cd2f195c2c237c27fd3;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git ftrace: have function graph use mcount caller address Impact: consistency change for function graph This patch makes function graph record the mcount caller address the same way the function tracer does. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index 958af86..826682a 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -1230,6 +1230,7 @@ ENTRY(ftrace_graph_caller) pushl %edx movl 0xc(%esp), %edx lea 0x4(%ebp), %eax + subl $MCOUNT_INSN_SIZE, %edx call prepare_ftrace_return popl %edx popl %ecx diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 2aa0526..9060ba6 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -173,6 +173,7 @@ ENTRY(ftrace_graph_caller) leaq 8(%rbp), %rdi movq 0x38(%rsp), %rsi + subq $MCOUNT_INSN_SIZE, %rsi call prepare_ftrace_return