diff options
| -rw-r--r-- | drivers/oprofile/cpu_buffer.c | 24 | ||||
| -rw-r--r-- | include/linux/oprofile.h | 7 |
2 files changed, 24 insertions, 7 deletions
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c index 59f55441e075..b8ef8ddcc292 100644 --- a/drivers/oprofile/cpu_buffer.c +++ b/drivers/oprofile/cpu_buffer.c @@ -258,8 +258,10 @@ op_add_sample(struct oprofile_cpu_buffer *cpu_buf, */ static int log_sample(struct oprofile_cpu_buffer *cpu_buf, unsigned long pc, - unsigned long backtrace, int is_kernel, unsigned long event) + unsigned long backtrace, int is_kernel, unsigned long event, + struct task_struct *task) { + struct task_struct *tsk = task ? task : current; cpu_buf->sample_received++; if (pc == ESCAPE_CODE) { @@ -267,7 +269,7 @@ log_sample(struct oprofile_cpu_buffer *cpu_buf, unsigned long pc, return 0; } - if (op_add_code(cpu_buf, backtrace, is_kernel, current)) + if (op_add_code(cpu_buf, backtrace, is_kernel, tsk)) goto fail; if (op_add_sample(cpu_buf, pc, event)) @@ -292,7 +294,8 @@ static inline void oprofile_end_trace(struct oprofile_cpu_buffer *cpu_buf) static inline void __oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs, - unsigned long event, int is_kernel) + unsigned long event, int is_kernel, + struct task_struct *task) { struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer); unsigned long backtrace = oprofile_backtrace_depth; @@ -301,7 +304,7 @@ __oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs, * if log_sample() fail we can't backtrace since we lost the * source of this event */ - if (!log_sample(cpu_buf, pc, backtrace, is_kernel, event)) + if (!log_sample(cpu_buf, pc, backtrace, is_kernel, event, task)) /* failed */ return; @@ -313,10 +316,17 @@ __oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs, oprofile_end_trace(cpu_buf); } +void oprofile_add_ext_hw_sample(unsigned long pc, struct pt_regs * const regs, + unsigned long event, int is_kernel, + struct task_struct *task) +{ + __oprofile_add_ext_sample(pc, regs, event, is_kernel, task); +} + void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs, unsigned long event, int is_kernel) { - __oprofile_add_ext_sample(pc, regs, event, is_kernel); + __oprofile_add_ext_sample(pc, regs, event, is_kernel, NULL); } void oprofile_add_sample(struct pt_regs * const regs, unsigned long event) @@ -332,7 +342,7 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event) pc = ESCAPE_CODE; /* as this causes an early return. */ } - __oprofile_add_ext_sample(pc, regs, event, is_kernel); + __oprofile_add_ext_sample(pc, regs, event, is_kernel, NULL); } /* @@ -403,7 +413,7 @@ int oprofile_write_commit(struct op_entry *entry) void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event) { struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer); - log_sample(cpu_buf, pc, 0, is_kernel, event); + log_sample(cpu_buf, pc, 0, is_kernel, event, NULL); } void oprofile_add_trace(unsigned long pc) diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h index 1ca64113efe8..7f5cfd3b37dd 100644 --- a/include/linux/oprofile.h +++ b/include/linux/oprofile.h @@ -106,6 +106,13 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event); void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs, unsigned long event, int is_kernel); +/** + * Add an hardware sample. + */ +void oprofile_add_ext_hw_sample(unsigned long pc, struct pt_regs * const regs, + unsigned long event, int is_kernel, + struct task_struct *task); + /* Use this instead when the PC value is not from the regs. Doesn't * backtrace. */ void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event); |