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ftrace/x86_32: Push ftrace_ops in as 3rd parameter to function tracer

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Add support of passing the current ftrace_ops into the 3rd parameter
of the callback to the function tracer.

Link: http://lkml.kernel.org/r/20120612225424.942411318@goodmis.org

Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt
2011-08-10 22:00:55 -04:00
committed by Steven Rostedt
parent a1e2e31d17
commit 28fb5dfa78
2 changed files with 2 additions and 1 deletions
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2
arch/x86/include/asm/ftrace.h
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@@ -32,7 +32,7 @@
#define MCOUNT_ADDR ((long)(mcount))
#define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */
#if defined(CONFIG_DYNAMIC_FTRACE) && defined(CONFIG_X86_64)
#ifdef CONFIG_DYNAMIC_FTRACE
#define ARCH_SUPPORTS_FTRACE_OPS 1
#endif

1
arch/x86/kernel/entry_32.S
View File

@@ -1111,6 +1111,7 @@ ENTRY(ftrace_caller)
pushl %edx
movl 0xc(%esp), %eax
movl 0x4(%ebp), %edx
leal function_trace_op, %ecx
subl $MCOUNT_INSN_SIZE, %eax
.globl ftrace_call