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x86/oprofile: add CONFIG_OPROFILE_IBS option

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Signed-off-by: Robert Richter <[email protected]>
Cc: oprofile-list <[email protected]>
Cc: Robert Richter <[email protected]>
Cc: Barry Kasindorf <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Robert Richter 2008-07-22 21:09:06 +02:00 • committed by Ingo Molnar
commit 852402cc27
4 changed files with 47 additions and 10 deletions
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6
drivers/oprofile/buffer_sync.c
View file

@ -328,6 +328,8 @@ static void add_trace_begin(void)
add_event_entry(TRACE_BEGIN_CODE);
}
#ifdef CONFIG_OPROFILE_IBS
#define IBS_FETCH_CODE_SIZE 2
#define IBS_OP_CODE_SIZE 5
#define IBS_EIP(offset) \
@ -390,6 +392,8 @@ static void add_ibs_begin(struct oprofile_cpu_buffer *cpu_buf, int code,
}
}
#endif
static void add_sample_entry(unsigned long offset, unsigned long event)
{
add_event_entry(offset);
@ -586,6 +590,7 @@ void sync_buffer(int cpu)
} else if (s->event == CPU_TRACE_BEGIN) {
state = sb_bt_start;
add_trace_begin();
#ifdef CONFIG_OPROFILE_IBS
} else if (s->event == IBS_FETCH_BEGIN) {
state = sb_bt_start;
add_ibs_begin(cpu_buf,
@ -594,6 +599,7 @@ void sync_buffer(int cpu)
state = sb_bt_start;
add_ibs_begin(cpu_buf,
IBS_OP_CODE, in_kernel, mm);
#endif
} else {
struct mm_struct *oldmm = mm;

4
drivers/oprofile/cpu_buffer.c
View file

@ -253,6 +253,8 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
oprofile_add_ext_sample(pc, regs, event, is_kernel);
}
#ifdef CONFIG_OPROFILE_IBS
#define MAX_IBS_SAMPLE_SIZE 14
static int log_ibs_sample(struct oprofile_cpu_buffer *cpu_buf,
unsigned long pc, int is_kernel, unsigned int *ibs, int ibs_code)
@ -318,6 +320,8 @@ void oprofile_add_ibs_sample(struct pt_regs *const regs,
oprofile_ops.backtrace(regs, backtrace_depth);
}
#endif
void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
{
struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);