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

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>

diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 783b107..b3bb1f3 100644 (file)
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -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
 

diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 623f288..e3e17a0 100644 (file)
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -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