mirror of
https://github.com/torvalds/linux
synced 2024-09-06 18:01:05 +00:00
MIPS: Tracing: Cleanup comments
Signed-off-by: Wu 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: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
parent
cbe555b01b
commit
042e571d22
|
@ -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
|
||||
|
|
Loading…
Reference in a new issue