forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

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

Browse source 
Pull perf fixes from Ingo Molnar:
 "Misc kernel side fixes:

   - fix event leak
   - fix AMD PMU driver bug
   - fix core event handling bug
   - fix build bug on certain randconfigs

  Plus misc tooling fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/amd/ibs: Fix pmu::stop() nesting
  perf/core: Don't leak event in the syscall error path
  perf/core: Fix time tracking bug with multiplexing
  perf jit: genelf makes assumptions about endian
  perf hists: Fix determination of a callchain node's childlessness
  perf tools: Add missing initialization of perf_sample.cpumode in synthesized samples
  perf tools: Fix build break on powerpc
  perf/x86: Move events_sysfs_show() outside CPU_SUP_INTEL
  perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers
  perf tests: Fix tarpkg build test error output redirection
This commit is contained in:
Linus Torvalds 2016-04-03 07:22:12 -05:00
commit 4c3b73c6a2
12 changed files with 98 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

1
tools/perf/MANIFEST
View file

@ -74,6 +74,7 @@ arch/*/include/uapi/asm/unistd*.h
arch/*/include/uapi/asm/perf_regs.h
arch/*/lib/memcpy*.S
arch/*/lib/memset*.S
arch/*/include/asm/*features.h
include/linux/poison.h
include/linux/hw_breakpoint.h
include/uapi/linux/perf_event.h

2
tools/perf/arch/powerpc/util/header.c
View file

@ -4,6 +4,8 @@
#include <stdlib.h>
#include <string.h>
#include <linux/stringify.h>
#include "header.h"
#include "util.h"
#define mfspr(rn) ({unsigned long rval; \
asm volatile("mfspr %0," __stringify(rn) \

2
tools/perf/tests/perf-targz-src-pkg
View file

@ -15,7 +15,7 @@ TMP_DEST=$(mktemp -d)
tar xf ${TARBALL} -C $TMP_DEST
rm -f ${TARBALL}
cd - > /dev/null
make -C $TMP_DEST/perf*/tools/perf > /dev/null 2>&1
make -C $TMP_DEST/perf*/tools/perf > /dev/null
RC=$?
rm -rf ${TMP_DEST}
exit $RC

2
tools/perf/ui/browsers/hists.c
View file

@ -337,7 +337,7 @@ static void callchain_node__init_have_children(struct callchain_node *node,
chain = list_entry(node->val.next, struct callchain_list, list);
chain->has_children = has_sibling;
if (node->val.next != node->val.prev) {
if (!list_empty(&node->val)) {
chain = list_entry(node->val.prev, struct callchain_list, list);
chain->has_children = !RB_EMPTY_ROOT(&node->rb_root);
}

23
tools/perf/util/event.c
View file

@ -56,13 +56,22 @@ const char *perf_event__name(unsigned int id)
return perf_event__names[id];
}
static struct perf_sample synth_sample = {
static int perf_tool__process_synth_event(struct perf_tool *tool,
union perf_event *event,
struct machine *machine,
perf_event__handler_t process)
{
struct perf_sample synth_sample = {
.pid = -1,
.tid = -1,
.time = -1,
.stream_id = -1,
.cpu = -1,
.period = 1,
.cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK,
};
return process(tool, event, &synth_sample, machine);
};
/*
@ -186,7 +195,7 @@ pid_t perf_event__synthesize_comm(struct perf_tool *tool,
if (perf_event__prepare_comm(event, pid, machine, &tgid, &ppid) != 0)
return -1;
if (process(tool, event, &synth_sample, machine) != 0)
if (perf_tool__process_synth_event(tool, event, machine, process) != 0)
return -1;
return tgid;
@ -218,7 +227,7 @@ static int perf_event__synthesize_fork(struct perf_tool *tool,
event->fork.header.size = (sizeof(event->fork) + machine->id_hdr_size);
if (process(tool, event, &synth_sample, machine) != 0)
if (perf_tool__process_synth_event(tool, event, machine, process) != 0)
return -1;
return 0;
@ -344,7 +353,7 @@ out:
event->mmap2.pid = tgid;
event->mmap2.tid = pid;
if (process(tool, event, &synth_sample, machine) != 0) {
if (perf_tool__process_synth_event(tool, event, machine, process) != 0) {
rc = -1;
break;
}
@ -402,7 +411,7 @@ int perf_event__synthesize_modules(struct perf_tool *tool,
memcpy(event->mmap.filename, pos->dso->long_name,
pos->dso->long_name_len + 1);
if (process(tool, event, &synth_sample, machine) != 0) {
if (perf_tool__process_synth_event(tool, event, machine, process) != 0) {
rc = -1;
break;
}
@ -472,7 +481,7 @@ static int __event__synthesize_thread(union perf_event *comm_event,
/*
* Send the prepared comm event
*/
if (process(tool, comm_event, &synth_sample, machine) != 0)
if (perf_tool__process_synth_event(tool, comm_event, machine, process) != 0)
break;
rc = 0;
@ -701,7 +710,7 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
event->mmap.len = map->end - event->mmap.start;
event->mmap.pid = machine->pid;
err = process(tool, event, &synth_sample, machine);
err = perf_tool__process_synth_event(tool, event, machine, process);
free(event);
return err;

24
tools/perf/util/genelf.h
View file

@ -9,36 +9,32 @@ int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_ent
#if defined(__arm__)
#define GEN_ELF_ARCH EM_ARM
#define GEN_ELF_ENDIAN ELFDATA2LSB
#define GEN_ELF_CLASS ELFCLASS32
#elif defined(__aarch64__)
#define GEN_ELF_ARCH EM_AARCH64
#define GEN_ELF_ENDIAN ELFDATA2LSB
#define GEN_ELF_CLASS ELFCLASS64
#elif defined(__x86_64__)
#define GEN_ELF_ARCH EM_X86_64
#define GEN_ELF_ENDIAN ELFDATA2LSB
#define GEN_ELF_CLASS ELFCLASS64
#elif defined(__i386__)
#define GEN_ELF_ARCH EM_386
#define GEN_ELF_ENDIAN ELFDATA2LSB
#define GEN_ELF_CLASS ELFCLASS32
#elif defined(__ppcle__)
#define GEN_ELF_ARCH EM_PPC
#define GEN_ELF_ENDIAN ELFDATA2LSB
#elif defined(__powerpc64__)
#define GEN_ELF_ARCH EM_PPC64
#define GEN_ELF_CLASS ELFCLASS64
#elif defined(__powerpc__)
#define GEN_ELF_ARCH EM_PPC64
#define GEN_ELF_ENDIAN ELFDATA2MSB
#define GEN_ELF_CLASS ELFCLASS64
#elif defined(__powerpcle__)
#define GEN_ELF_ARCH EM_PPC64
#define GEN_ELF_ENDIAN ELFDATA2LSB
#define GEN_ELF_CLASS ELFCLASS64
#define GEN_ELF_ARCH EM_PPC
#define GEN_ELF_CLASS ELFCLASS32
#else
#error "unsupported architecture"
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
#define GEN_ELF_ENDIAN ELFDATA2MSB
#else
#define GEN_ELF_ENDIAN ELFDATA2LSB
#endif
#if GEN_ELF_CLASS == ELFCLASS64
#define elf_newehdr elf64_newehdr
#define elf_getshdr elf64_getshdr

1
tools/perf/util/intel-bts.c
View file

@ -279,6 +279,7 @@ static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq,
event.sample.header.misc = PERF_RECORD_MISC_USER;
event.sample.header.size = sizeof(struct perf_event_header);
sample.cpumode = PERF_RECORD_MISC_USER;
sample.ip = le64_to_cpu(branch->from);
sample.pid = btsq->pid;
sample.tid = btsq->tid;

3
tools/perf/util/intel-pt.c
View file

@ -979,6 +979,7 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq)
if (!pt->timeless_decoding)
sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
sample.cpumode = PERF_RECORD_MISC_USER;
sample.ip = ptq->state->from_ip;
sample.pid = ptq->pid;
sample.tid = ptq->tid;
@ -1035,6 +1036,7 @@ static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq)
if (!pt->timeless_decoding)
sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
sample.cpumode = PERF_RECORD_MISC_USER;
sample.ip = ptq->state->from_ip;
sample.pid = ptq->pid;
sample.tid = ptq->tid;
@ -1092,6 +1094,7 @@ static int intel_pt_synth_transaction_sample(struct intel_pt_queue *ptq)
if (!pt->timeless_decoding)
sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
sample.cpumode = PERF_RECORD_MISC_USER;
sample.ip = ptq->state->from_ip;
sample.pid = ptq->pid;
sample.tid = ptq->tid;

2
tools/perf/util/jitdump.c
View file

@ -417,6 +417,7 @@ static int jit_repipe_code_load(struct jit_buf_desc *jd, union jr_entry *jr)
* use first address as sample address
*/
memset(&sample, 0, sizeof(sample));
sample.cpumode = PERF_RECORD_MISC_USER;
sample.pid = pid;
sample.tid = tid;
sample.time = id->time;
@ -505,6 +506,7 @@ static int jit_repipe_code_move(struct jit_buf_desc *jd, union jr_entry *jr)
* use first address as sample address
*/
memset(&sample, 0, sizeof(sample));
sample.cpumode = PERF_RECORD_MISC_USER;
sample.pid = pid;
sample.tid = tid;
sample.time = id->time;