diff options
| author |   Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2014-12-10 23:49:49 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2014-12-11 23:28:54 -0500 |
| commit | f823b37ba6703f7cc65c8a2350872a67f080cafe (patch) | |
| tree | aee740367e1afe425bdba29af9cfb0dd41167125 | |
| parent | tracing: Truncated output is better than nothing (diff) | |
| download | linux-dev-f823b37ba6703f7cc65c8a2350872a67f080cafe.tar.xz linux-dev-f823b37ba6703f7cc65c8a2350872a67f080cafe.zip | |
ftrace/x86: Update i386 call to prepare_ftrace_return()
The parameters for prepare_ftrace_return() used by the function graph
tracer were swapped to simplify the code on x86_64. But i386 function
graph trampoline also calls this function, and it did not have its
parameters swapped.
Link: http://lkml.kernel.org/r/20141210231732.GA24163@wfg-t540p.sh.intel.com
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Fixes: 6a06bdbf7f9c "ftrace/fgraph/x86: Have prepare_ftrace_return() take ip as first parameter"
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| -rw-r--r-- | arch/x86/kernel/entry_32.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index b553ed89e5f5..df3e608d409b 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -1192,10 +1192,10 @@ ENTRY(ftrace_graph_caller) pushl %eax pushl %ecx pushl %edx - movl 0xc(%esp), %edx - lea 0x4(%ebp), %eax + movl 0xc(%esp), %eax + lea 0x4(%ebp), %edx movl (%ebp), %ecx - subl $MCOUNT_INSN_SIZE, %edx + subl $MCOUNT_INSN_SIZE, %eax call prepare_ftrace_return popl %edx popl %ecx |