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Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core

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This commit is contained in:
Ingo Molnar
2010-06-09 18:55:20 +02:00
parent 7be7923633 018378c55b
commit c726b61c6a
35 changed files with 130 additions and 1309 deletions
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32
include/linux/perf_event.h
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@@ -932,8 +932,10 @@ extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX];
extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64);
extern void
perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip);
#ifndef perf_arch_fetch_caller_regs
static inline void
perf_arch_fetch_caller_regs(struct regs *regs, unsigned long ip) { }
#endif
/*
* Take a snapshot of the regs. Skip ip and frame pointer to
@@ -943,31 +945,11 @@ perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip);
* - bp for callchains
* - eflags, for future purposes, just in case
*/
static inline void perf_fetch_caller_regs(struct pt_regs *regs, int skip)
static inline void perf_fetch_caller_regs(struct pt_regs *regs)
{
unsigned long ip;
memset(regs, 0, sizeof(*regs));
switch (skip) {
case 1 :
ip = CALLER_ADDR0;
break;
case 2 :
ip = CALLER_ADDR1;
break;
case 3 :
ip = CALLER_ADDR2;
break;
case 4:
ip = CALLER_ADDR3;
break;
/* No need to support further for now */
default:
ip = 0;
}
return perf_arch_fetch_caller_regs(regs, ip, skip);
perf_arch_fetch_caller_regs(regs, CALLER_ADDR0);
}
static inline void
@@ -977,7 +959,7 @@ perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
struct pt_regs hot_regs;
if (!regs) {
perf_fetch_caller_regs(&hot_regs, 1);
perf_fetch_caller_regs(&hot_regs);
regs = &hot_regs;
}
__perf_sw_event(event_id, nr, nmi, regs, addr);