Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 042e571d authored by Wu Zhangjin's avatar Wu Zhangjin Committed by Ralf Baechle
Browse files

MIPS: Tracing: Cleanup comments 



Signed-off-by: default avatarWu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Cc: David Daney <david.s.daney@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/1225/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent cbe555b0

arch/mips/kernel/mcount.S

+6 −5
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
 * more details.

 *

 * Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University, China

 * Copyright (C) 2010 DSLab, Lanzhou University, China

 * Author: Wu Zhangjin <wuzhangjin@gmail.com>

 */
@@ -69,14 +70,14 @@ _mcount: 


	MCOUNT_SAVE_REGS

#ifdef KBUILD_MCOUNT_RA_ADDRESS

	PTR_S	t0, PT_R12(sp)	/* t0 saved the location of the return address(at) by -mmcount-ra-address */

	PTR_S	t0, PT_R12(sp)	/* save location of parent's return address */

#endif



	move	a0, ra		/* arg1: next ip, selfaddr */

	move	a0, ra		/* arg1: self return address */

	.globl ftrace_call

ftrace_call:

	nop	/* a placeholder for the call to a real tracing function */

	 move	a1, AT		/* arg2: the caller's next ip, parent */

	 move	a1, AT		/* arg2: parent's return address */



#ifdef CONFIG_FUNCTION_GRAPH_TRACER

	.globl ftrace_graph_call
@@ -117,9 +118,9 @@ NESTED(_mcount, PT_SIZE, ra) 
static_trace:

	MCOUNT_SAVE_REGS



	move	a0, ra		/* arg1: next ip, selfaddr */

	move	a0, ra		/* arg1: self return address */

	jalr	t2		/* (1) call *ftrace_trace_function */

	 move	a1, AT		/* arg2: the caller's next ip, parent */

	 move	a1, AT		/* arg2: parent's return address */



	MCOUNT_RESTORE_REGS

	.globl ftrace_stub