diff options
author | Steven Rostedt <rostedt@goodmis.org> | 2013-11-13 15:20:04 -0500 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-25 08:27:11 -0800 |
commit | b2be7cd9d11dde01e7c8ae39fe428d8df0aa8c6c (patch) | |
tree | b0995f10ba3a92ebcd093b8b6d996a8240fb6b37 /arch/x86/kernel/entry_32.S | |
parent | 057f2f7daf84356c8677f2458395d250c4c0674f (diff) |
ftrace/x86: Load ftrace_ops in parameter not the variable holding it
commit 1739f09e33d8f66bf48ddbc3eca615574da6c4f6 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/entry_32.S')
-rw-r--r-- | arch/x86/kernel/entry_32.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index 8f3e2dec1df3..94e52cf064b0 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -1075,7 +1075,7 @@ ENTRY(ftrace_caller) pushl $0 /* Pass NULL as regs pointer */ movl 4*4(%esp), %eax movl 0x4(%ebp), %edx - leal function_trace_op, %ecx + movl function_trace_op, %ecx subl $MCOUNT_INSN_SIZE, %eax .globl ftrace_call @@ -1133,7 +1133,7 @@ ENTRY(ftrace_regs_caller) movl 12*4(%esp), %eax /* Load ip (1st parameter) */ subl $MCOUNT_INSN_SIZE, %eax /* Adjust ip */ movl 0x4(%ebp), %edx /* Load parent ip (2nd parameter) */ - leal function_trace_op, %ecx /* Save ftrace_pos in 3rd parameter */ + movl function_trace_op, %ecx /* Save ftrace_pos in 3rd parameter */ pushl %esp /* Save pt_regs as 4th parameter */ GLOBAL(ftrace_regs_call) |