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| author | Steven Rostedt <rostedt@goodmis.org> | 2013-11-13 15:20:04 -0500 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-01-09 13:24:29 -0800 |
| commit | 1739f09e33d8f66bf48ddbc3eca615574da6c4f6 (patch) | |
| tree | cb6bbe381ad28a345d4a69565835bfb328fdba1c /arch/x86/kernel/entry_64.S | |
| parent | d6e0a2dd12f4067a5bcefb8bbd8ddbeff800afbc (diff) | |
| download | op-kernel-dev-1739f09e33d8f66bf48ddbc3eca615574da6c4f6.zip op-kernel-dev-1739f09e33d8f66bf48ddbc3eca615574da6c4f6.tar.gz | |
ftrace/x86: Load ftrace_ops in parameter not the variable holding it
Function tracing callbacks expect to have the ftrace_ops that registered it
passed to them, not the address of the variable that holds the ftrace_ops
that registered it.
Use a mov instead of a lea to store the ftrace_ops into the parameter
of the function tracing callback.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Link: http://lkml.kernel.org/r/20131113152004.459787f9@gandalf.local.home
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@vger.kernel.org> # v3.8+
Diffstat (limited to 'arch/x86/kernel/entry_64.S')
| -rw-r--r-- | arch/x86/kernel/entry_64.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index e21b078..1e96c36 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -88,7 +88,7 @@ END(function_hook) MCOUNT_SAVE_FRAME \skip /* Load the ftrace_ops into the 3rd parameter */ - leaq function_trace_op, %rdx + movq function_trace_op(%rip), %rdx /* Load ip into the first parameter */ movq RIP(%rsp), %rdi |
