linux-kernel - [tip:perf/core] ftrace/x86_32: Push ftrace_ops in as 3rd parameter to function tracer

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Message-ID: <tip-28fb5dfa783c25dbeeb25a72663f8066a3a517f5@git.kernel.org>
Date:	Tue, 21 Aug 2012 08:01:03 -0700
From:	tip-bot for Steven Rostedt <srostedt@...hat.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	masami.hiramatsu.pt@...achi.com, rostedt@...dmis.org,
	srostedt@...hat.com, tglx@...utronix.de
Subject: [tip:perf/core] ftrace/x86_32:
  Push ftrace_ops in as 3rd parameter to function tracer

Commit-ID:  28fb5dfa783c25dbeeb25a72663f8066a3a517f5
Gitweb:     http://git.kernel.org/tip/28fb5dfa783c25dbeeb25a72663f8066a3a517f5
Author:     Steven Rostedt <srostedt@...hat.com>
AuthorDate: Wed, 10 Aug 2011 22:00:55 -0400
Committer:  Steven Rostedt <rostedt@...dmis.org>
CommitDate: Thu, 19 Jul 2012 13:19:27 -0400

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@...achi.com>
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
---
 arch/x86/include/asm/ftrace.h |    2 +-
 arch/x86/kernel/entry_32.S    |    1 +
 2 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 783b107..b3bb1f3 100644
--- 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
--- 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
--
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