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| author | Dave Peverley <dpeverley@mpc-data.co.uk> | 2008-12-16 09:35:40 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-12-22 18:44:43 +0900 |
| commit | 40a8b421b6a85f7786bf3007d316cd799efe8ea1 (patch) | |
| tree | 64c422b0897587ceba98b83869dda4c3ddbb0070 /arch/sh/oprofile/common.c | |
| parent | 60a51fbe5dd2baef0f35bcf79f25ac1ee239a660 (diff) | |
| download | linux-0-day-40a8b421b6a85f7786bf3007d316cd799efe8ea1.tar.gz linux-0-day-40a8b421b6a85f7786bf3007d316cd799efe8ea1.tar.xz | |
sh: oprofile: Backtrace support.
This patch improves the oprofile support on sh and adds backtrace
support.
Signed-off-by: Dave Peverley <dpeverley@mpc-data.co.uk>
Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/oprofile/common.c')
| -rw-r--r-- | arch/sh/oprofile/common.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/sh/oprofile/common.c b/arch/sh/oprofile/common.c index a4d8c0c9a63c4..1d97d64cb95fa 100644 --- a/arch/sh/oprofile/common.c +++ b/arch/sh/oprofile/common.c @@ -27,6 +27,8 @@ static struct op_sh_model *model; static struct op_counter_config ctr[20]; +extern void sh_backtrace(struct pt_regs * const regs, unsigned int depth); + static int op_sh_setup(void) { /* Pre-compute the values to stuff in the hardware registers. */ @@ -85,6 +87,13 @@ int __init oprofile_arch_init(struct oprofile_operations *ops) struct op_sh_model *lmodel = NULL; int ret; + /* + * Always assign the backtrace op. If the counter initialization + * fails, we fall back to the timer which will still make use of + * this. + */ + ops->backtrace = sh_backtrace; + switch (current_cpu_data.type) { /* SH-4 types */ case CPU_SH7750: |