TononixOS/ubports_kernel_google_msm
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Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf session: Make events_stats u64 to avoid overflow on 32-bit arches
  hw-breakpoints: Fix hardware breakpoints -> perf events dependency
  perf events: Dont report side-band events on each cpu for per-task-per-cpu events
  perf events, x86/stacktrace: Fix performance/softlockup by providing a special frame pointer-only stack walker
  perf events, x86/stacktrace: Make stack walking optional
  perf events: Remove unused perf_counter.h header file
  perf probe: Check new event name
  kprobe-tracer: Check new event/group name
  perf probe: Check whether debugfs path is correct
  perf probe: Fix libdwarf include path for Debian
This commit is contained in:
Linus Torvalds
2009-12-19 09:48:42 -08:00
parent 3981e15286 b5b60fda1e
commit eca9dfcd00
20 changed files with 175 additions and 523 deletions
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24
arch/x86/include/asm/stacktrace.h
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@@ -5,6 +5,29 @@ extern int kstack_depth_to_print;
int x86_is_stack_id(int id, char *name);
struct thread_info;
struct stacktrace_ops;
typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo,
unsigned long *stack,
unsigned long bp,
const struct stacktrace_ops *ops,
void *data,
unsigned long *end,
int *graph);
extern unsigned long
print_context_stack(struct thread_info *tinfo,
unsigned long *stack, unsigned long bp,
const struct stacktrace_ops *ops, void *data,
unsigned long *end, int *graph);
extern unsigned long
print_context_stack_bp(struct thread_info *tinfo,
unsigned long *stack, unsigned long bp,
const struct stacktrace_ops *ops, void *data,
unsigned long *end, int *graph);
/* Generic stack tracer with callbacks */
struct stacktrace_ops {
@@ -14,6 +37,7 @@ struct stacktrace_ops {
void (*address)(void *data, unsigned long address, int reliable);
/* On negative return stop dumping */
int (*stack)(void *data, char *name);
walk_stack_t walk_stack;
};
void dump_trace(struct task_struct *tsk, struct pt_regs *regs,