Commit 908e373f authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Pull perf fixes from Thomas Gleixner:
 "A few fixes from the perf departement

   - prevent a imbalanced preemption disable in the events teardown code
   - prevent out of bound acces in perf userspace
   - make perf tools compile with UCLIBC again
   - a fix for the userspace unwinder utility"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Use this_cpu_ptr() when stopping AUX events
  perf evsel: Do not access outside hw cache name arrays
  tools lib: Reinstate strlcpy() header guard with __UCLIBC__
  perf unwind: Use addr_location::addr instead of ip for entries
parents 5d84ee79 8b6a3fe8

kernel/events/core.c

+1 −1
Original line number Diff line number Diff line
@@ -6166,7 +6166,7 @@ static int __perf_pmu_output_stop(void *info) 
{

	struct perf_event *event = info;

	struct pmu *pmu = event->pmu;

	struct perf_cpu_context *cpuctx = get_cpu_ptr(pmu->pmu_cpu_context);

	struct perf_cpu_context *cpuctx = this_cpu_ptr(pmu->pmu_cpu_context);

	struct remote_output ro = {

		.rb	= event->rb,

	};

tools/include/linux/string.h

+5 −1
Original line number Diff line number Diff line
@@ -8,7 +8,11 @@ void *memdup(const void *src, size_t len); 


int strtobool(const char *s, bool *res);



#ifdef __GLIBC__

/*

 * glibc based builds needs the extern while uClibc doesn't.

 * However uClibc headers also define __GLIBC__ hence the hack below

 */

#if defined(__GLIBC__) && !defined(__UCLIBC__)

extern size_t strlcpy(char *dest, const char *src, size_t size);

#endif

tools/perf/util/evsel.c

+3 −3
Original line number Diff line number Diff line
@@ -507,17 +507,17 @@ static int __perf_evsel__hw_cache_name(u64 config, char *bf, size_t size) 
	u8 op, result, type = (config >>  0) & 0xff;

	const char *err = "unknown-ext-hardware-cache-type";



	if (type > PERF_COUNT_HW_CACHE_MAX)

	if (type >= PERF_COUNT_HW_CACHE_MAX)

		goto out_err;



	op = (config >>  8) & 0xff;

	err = "unknown-ext-hardware-cache-op";

	if (op > PERF_COUNT_HW_CACHE_OP_MAX)

	if (op >= PERF_COUNT_HW_CACHE_OP_MAX)

		goto out_err;



	result = (config >> 16) & 0xff;

	err = "unknown-ext-hardware-cache-result";

	if (result > PERF_COUNT_HW_CACHE_RESULT_MAX)

	if (result >= PERF_COUNT_HW_CACHE_RESULT_MAX)

		goto out_err;



	err = "invalid-cache";

tools/perf/util/unwind-libdw.c

+1 −1
Original line number Diff line number Diff line
@@ -66,7 +66,7 @@ static int entry(u64 ip, struct unwind_info *ui) 
	if (__report_module(&al, ip, ui))

		return -1;



	e->ip  = ip;

	e->ip  = al.addr;

	e->map = al.map;

	e->sym = al.sym;

tools/perf/util/unwind-libunwind-local.c

+1 −1
Original line number Diff line number Diff line
@@ -542,7 +542,7 @@ static int entry(u64 ip, struct thread *thread, 
	thread__find_addr_location(thread, PERF_RECORD_MISC_USER,

				   MAP__FUNCTION, ip, &al);



	e.ip = ip;

	e.ip = al.addr;

	e.map = al.map;

	e.sym = al.sym;

CRA Git | Maintained and supported by SUSTech CRA and CCSE