diff options
| author | Matt Fleming <mjf@gentoo.org> | 2008-11-12 20:11:47 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-12-22 18:42:52 +0900 |
| commit | fad57feba77d2e5b183e068cb6b90693e4567b40 (patch) | |
| tree | 478788d5a05a30f638540d345e9d09c5733687da /arch/sh/kernel/entry-common.S | |
| parent | ef6aff6884408db95ceb0f678f583536e0bd48f8 (diff) | |
sh: dynamic ftrace support.
First cut at dynamic ftrace support.
Signed-off-by: Matt Fleming <mjf@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/entry-common.S')
| -rw-r--r-- | arch/sh/kernel/entry-common.S | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S index 5b7efc4016fa..efbb4268875e 100644 --- a/arch/sh/kernel/entry-common.S +++ b/arch/sh/kernel/entry-common.S @@ -371,47 +371,3 @@ syscall_exit: #endif 7: .long do_syscall_trace_enter 8: .long do_syscall_trace_leave - -#ifdef CONFIG_FUNCTION_TRACER - .align 2 - .globl _mcount - .type _mcount,@function - .globl mcount - .type mcount,@function -_mcount: -mcount: - mov.l r4, @-r15 - mov.l r5, @-r15 - mov.l r6, @-r15 - mov.l r7, @-r15 - sts.l pr, @-r15 - - mov.l @(20,r15),r4 - sts pr, r5 - - mov.l 1f, r6 - mov.l ftrace_stub, r7 - cmp/eq r6, r7 - bt skip_trace - - mov.l @r6, r6 - jsr @r6 - nop - -skip_trace: - - lds.l @r15+, pr - mov.l @r15+, r7 - mov.l @r15+, r6 - mov.l @r15+, r5 - rts - mov.l @r15+, r4 - - .align 2 -1: .long ftrace_trace_function - - .globl ftrace_stub -ftrace_stub: - rts - nop -#endif /* CONFIG_FUNCTION_TRACER */ |