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ftrace: have function graph use mcount caller address

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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 <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Steven Rostedt 2008-12-02 15:34:09 -05:00 committed by Ingo Molnar
parent 347fdd9dd4
commit bb4304c71c
2 changed files with 2 additions and 0 deletions
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1
arch/x86/kernel/entry_32.S
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@ -1230,6 +1230,7 @@ ENTRY(ftrace_graph_caller)
pushl %edx pushl %edx
movl 0xc(%esp), %edx movl 0xc(%esp), %edx
lea 0x4(%ebp), %eax lea 0x4(%ebp), %eax
subl $MCOUNT_INSN_SIZE, %edx
call prepare_ftrace_return call prepare_ftrace_return
popl %edx popl %edx
popl %ecx popl %ecx

1
arch/x86/kernel/entry_64.S
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@ -173,6 +173,7 @@ ENTRY(ftrace_graph_caller)
leaq 8(%rbp), %rdi leaq 8(%rbp), %rdi
movq 0x38(%rsp), %rsi movq 0x38(%rsp), %rsi
subq $MCOUNT_INSN_SIZE, %rsi
call prepare_ftrace_return call prepare_ftrace_return