Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf_counter: Report the cloning task as parent on perf_counter_fork() perf_counter: Fix an ipi-deadlock perf: Rework/fix the whole read vs group stuff perf_counter: Fix swcounter context invariance perf report: Don't show unresolved DSOs and symbols when -S/-d is used perf tools: Add a general option to enable raw sample records perf tools: Add a per tracepoint counter attribute to get raw sample perf_counter: Provide hw_perf_counter_setup_online() APIs perf list: Fix large list output by using the pager perf_counter, x86: Fix/improve apic fallback perf record: Add missing -C option support for specifying profile cpu perf tools: Fix dso__new handle() to handle deleted DSOs perf tools: Fix fallback to cplus_demangle() when bfd_demangle() is not available perf report: Show the tid too in -D perf record: Fix .tid and .pid fill-in when synthesizing events perf_counter, x86: Fix generic cache events on P6-mobile CPUs perf_counter, x86: Fix lapic printk message
This commit is contained in:
Linus Torvalds
Коммит
3493e84de6
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@ -24,6 +24,7 @@ config X86
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select HAVE_UNSTABLE_SCHED_CLOCK
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select HAVE_IDE
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select HAVE_OPROFILE
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select HAVE_PERF_COUNTERS if (!M386 && !M486)
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select HAVE_IOREMAP_PROT
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select HAVE_KPROBES
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select ARCH_WANT_OPTIONAL_GPIOLIB
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@ -742,7 +743,6 @@ config X86_UP_IOAPIC
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config X86_LOCAL_APIC
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def_bool y
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depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC
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select HAVE_PERF_COUNTERS if (!M386 && !M486)
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config X86_IO_APIC
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def_bool y
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@ -55,6 +55,7 @@ struct x86_pmu {
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int num_counters_fixed;
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int counter_bits;
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u64 counter_mask;
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int apic;
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u64 max_period;
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u64 intel_ctrl;
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};
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@ -72,8 +73,8 @@ static const u64 p6_perfmon_event_map[] =
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{
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[PERF_COUNT_HW_CPU_CYCLES] = 0x0079,
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[PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
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[PERF_COUNT_HW_CACHE_REFERENCES] = 0x0000,
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[PERF_COUNT_HW_CACHE_MISSES] = 0x0000,
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[PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e,
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[PERF_COUNT_HW_CACHE_MISSES] = 0x012e,
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[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4,
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[PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5,
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[PERF_COUNT_HW_BUS_CYCLES] = 0x0062,
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@ -613,6 +614,7 @@ static DEFINE_MUTEX(pmc_reserve_mutex);
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static bool reserve_pmc_hardware(void)
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{
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#ifdef CONFIG_X86_LOCAL_APIC
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int i;
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if (nmi_watchdog == NMI_LOCAL_APIC)
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@ -627,9 +629,11 @@ static bool reserve_pmc_hardware(void)
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if (!reserve_evntsel_nmi(x86_pmu.eventsel + i))
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goto eventsel_fail;
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}
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#endif
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return true;
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#ifdef CONFIG_X86_LOCAL_APIC
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eventsel_fail:
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for (i--; i >= 0; i--)
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release_evntsel_nmi(x86_pmu.eventsel + i);
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@ -644,10 +648,12 @@ perfctr_fail:
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enable_lapic_nmi_watchdog();
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return false;
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#endif
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}
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static void release_pmc_hardware(void)
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{
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#ifdef CONFIG_X86_LOCAL_APIC
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int i;
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for (i = 0; i < x86_pmu.num_counters; i++) {
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@ -657,6 +663,7 @@ static void release_pmc_hardware(void)
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if (nmi_watchdog == NMI_LOCAL_APIC)
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enable_lapic_nmi_watchdog();
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#endif
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}
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static void hw_perf_counter_destroy(struct perf_counter *counter)
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@ -748,6 +755,15 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
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hwc->sample_period = x86_pmu.max_period;
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hwc->last_period = hwc->sample_period;
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atomic64_set(&hwc->period_left, hwc->sample_period);
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} else {
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/*
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* If we have a PMU initialized but no APIC
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* interrupts, we cannot sample hardware
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* counters (user-space has to fall back and
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* sample via a hrtimer based software counter):
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*/
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if (!x86_pmu.apic)
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return -EOPNOTSUPP;
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}
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counter->destroy = hw_perf_counter_destroy;
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@ -1449,18 +1465,22 @@ void smp_perf_pending_interrupt(struct pt_regs *regs)
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void set_perf_counter_pending(void)
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{
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#ifdef CONFIG_X86_LOCAL_APIC
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apic->send_IPI_self(LOCAL_PENDING_VECTOR);
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#endif
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}
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void perf_counters_lapic_init(void)
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{
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if (!x86_pmu_initialized())
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#ifdef CONFIG_X86_LOCAL_APIC
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if (!x86_pmu.apic || !x86_pmu_initialized())
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return;
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/*
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* Always use NMI for PMU
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*/
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apic_write(APIC_LVTPC, APIC_DM_NMI);
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#endif
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}
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static int __kprobes
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@ -1484,7 +1504,9 @@ perf_counter_nmi_handler(struct notifier_block *self,
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regs = args->regs;
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#ifdef CONFIG_X86_LOCAL_APIC
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apic_write(APIC_LVTPC, APIC_DM_NMI);
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#endif
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/*
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* Can't rely on the handled return value to say it was our NMI, two
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* counters could trigger 'simultaneously' raising two back-to-back NMIs.
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@ -1515,6 +1537,7 @@ static struct x86_pmu p6_pmu = {
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.event_map = p6_pmu_event_map,
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.raw_event = p6_pmu_raw_event,
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.max_events = ARRAY_SIZE(p6_perfmon_event_map),
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.apic = 1,
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.max_period = (1ULL << 31) - 1,
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.version = 0,
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.num_counters = 2,
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@ -1541,6 +1564,7 @@ static struct x86_pmu intel_pmu = {
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.event_map = intel_pmu_event_map,
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.raw_event = intel_pmu_raw_event,
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.max_events = ARRAY_SIZE(intel_perfmon_event_map),
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.apic = 1,
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/*
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* Intel PMCs cannot be accessed sanely above 32 bit width,
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* so we install an artificial 1<<31 period regardless of
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@ -1564,6 +1588,7 @@ static struct x86_pmu amd_pmu = {
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.num_counters = 4,
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.counter_bits = 48,
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.counter_mask = (1ULL << 48) - 1,
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.apic = 1,
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/* use highest bit to detect overflow */
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.max_period = (1ULL << 47) - 1,
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};
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@ -1589,12 +1614,13 @@ static int p6_pmu_init(void)
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return -ENODEV;
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}
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if (!cpu_has_apic) {
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pr_info("no Local APIC, try rebooting with lapic");
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return -ENODEV;
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}
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x86_pmu = p6_pmu;
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x86_pmu = p6_pmu;
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if (!cpu_has_apic) {
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pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n");
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pr_info("no hardware sampling interrupt available.\n");
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x86_pmu.apic = 0;
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}
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return 0;
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}
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@ -115,7 +115,7 @@ enum perf_counter_sample_format {
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PERF_SAMPLE_TID = 1U << 1,
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PERF_SAMPLE_TIME = 1U << 2,
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PERF_SAMPLE_ADDR = 1U << 3,
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PERF_SAMPLE_GROUP = 1U << 4,
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PERF_SAMPLE_READ = 1U << 4,
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PERF_SAMPLE_CALLCHAIN = 1U << 5,
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PERF_SAMPLE_ID = 1U << 6,
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PERF_SAMPLE_CPU = 1U << 7,
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@ -127,16 +127,32 @@ enum perf_counter_sample_format {
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};
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/*
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* Bits that can be set in attr.read_format to request that
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* reads on the counter should return the indicated quantities,
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* in increasing order of bit value, after the counter value.
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* The format of the data returned by read() on a perf counter fd,
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* as specified by attr.read_format:
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*
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* struct read_format {
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* { u64 value;
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* { u64 time_enabled; } && PERF_FORMAT_ENABLED
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* { u64 time_running; } && PERF_FORMAT_RUNNING
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* { u64 id; } && PERF_FORMAT_ID
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* } && !PERF_FORMAT_GROUP
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*
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* { u64 nr;
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* { u64 time_enabled; } && PERF_FORMAT_ENABLED
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* { u64 time_running; } && PERF_FORMAT_RUNNING
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* { u64 value;
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* { u64 id; } && PERF_FORMAT_ID
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* } cntr[nr];
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* } && PERF_FORMAT_GROUP
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* };
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*/
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enum perf_counter_read_format {
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PERF_FORMAT_TOTAL_TIME_ENABLED = 1U << 0,
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PERF_FORMAT_TOTAL_TIME_RUNNING = 1U << 1,
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PERF_FORMAT_ID = 1U << 2,
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PERF_FORMAT_GROUP = 1U << 3,
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PERF_FORMAT_MAX = 1U << 3, /* non-ABI */
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PERF_FORMAT_MAX = 1U << 4, /* non-ABI */
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};
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#define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */
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@ -343,10 +359,8 @@ enum perf_event_type {
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* struct {
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* struct perf_event_header header;
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* u32 pid, tid;
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* u64 value;
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* { u64 time_enabled; } && PERF_FORMAT_ENABLED
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* { u64 time_running; } && PERF_FORMAT_RUNNING
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* { u64 parent_id; } && PERF_FORMAT_ID
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*
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* struct read_format values;
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* };
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*/
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PERF_EVENT_READ = 8,
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@ -364,11 +378,22 @@ enum perf_event_type {
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* { u32 cpu, res; } && PERF_SAMPLE_CPU
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* { u64 period; } && PERF_SAMPLE_PERIOD
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*
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* { u64 nr;
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* { u64 id, val; } cnt[nr]; } && PERF_SAMPLE_GROUP
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* { struct read_format values; } && PERF_SAMPLE_READ
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*
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* { u64 nr,
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* u64 ips[nr]; } && PERF_SAMPLE_CALLCHAIN
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*
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* #
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* # The RAW record below is opaque data wrt the ABI
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* #
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* # That is, the ABI doesn't make any promises wrt to
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* # the stability of its content, it may vary depending
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* # on event, hardware, kernel version and phase of
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* # the moon.
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* #
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* # In other words, PERF_SAMPLE_RAW contents are not an ABI.
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* #
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*
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* { u32 size;
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* char data[size];}&& PERF_SAMPLE_RAW
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* };
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@ -694,6 +719,8 @@ struct perf_sample_data {
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extern int perf_counter_overflow(struct perf_counter *counter, int nmi,
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struct perf_sample_data *data);
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extern void perf_counter_output(struct perf_counter *counter, int nmi,
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struct perf_sample_data *data);
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/*
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* Return 1 for a software counter, 0 for a hardware counter
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|
|
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@ -88,6 +88,7 @@ void __weak hw_perf_disable(void) { barrier(); }
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void __weak hw_perf_enable(void) { barrier(); }
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void __weak hw_perf_counter_setup(int cpu) { barrier(); }
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void __weak hw_perf_counter_setup_online(int cpu) { barrier(); }
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int __weak
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hw_perf_group_sched_in(struct perf_counter *group_leader,
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@ -306,6 +307,10 @@ counter_sched_out(struct perf_counter *counter,
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return;
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counter->state = PERF_COUNTER_STATE_INACTIVE;
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if (counter->pending_disable) {
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counter->pending_disable = 0;
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counter->state = PERF_COUNTER_STATE_OFF;
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}
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counter->tstamp_stopped = ctx->time;
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counter->pmu->disable(counter);
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counter->oncpu = -1;
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@ -1691,7 +1696,32 @@ static int perf_release(struct inode *inode, struct file *file)
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return 0;
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}
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|
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static u64 perf_counter_read_tree(struct perf_counter *counter)
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static int perf_counter_read_size(struct perf_counter *counter)
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{
|
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int entry = sizeof(u64); /* value */
|
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int size = 0;
|
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int nr = 1;
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|
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if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
|
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size += sizeof(u64);
|
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|
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if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
|
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size += sizeof(u64);
|
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|
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if (counter->attr.read_format & PERF_FORMAT_ID)
|
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entry += sizeof(u64);
|
||||
|
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if (counter->attr.read_format & PERF_FORMAT_GROUP) {
|
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nr += counter->group_leader->nr_siblings;
|
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size += sizeof(u64);
|
||||
}
|
||||
|
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size += entry * nr;
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static u64 perf_counter_read_value(struct perf_counter *counter)
|
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{
|
||||
struct perf_counter *child;
|
||||
u64 total = 0;
|
||||
|
|
@ -1703,14 +1733,96 @@ static u64 perf_counter_read_tree(struct perf_counter *counter)
|
|||
return total;
|
||||
}
|
||||
|
||||
static int perf_counter_read_entry(struct perf_counter *counter,
|
||||
u64 read_format, char __user *buf)
|
||||
{
|
||||
int n = 0, count = 0;
|
||||
u64 values[2];
|
||||
|
||||
values[n++] = perf_counter_read_value(counter);
|
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if (read_format & PERF_FORMAT_ID)
|
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values[n++] = primary_counter_id(counter);
|
||||
|
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count = n * sizeof(u64);
|
||||
|
||||
if (copy_to_user(buf, values, count))
|
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return -EFAULT;
|
||||
|
||||
return count;
|
||||
}
|
||||
|
||||
static int perf_counter_read_group(struct perf_counter *counter,
|
||||
u64 read_format, char __user *buf)
|
||||
{
|
||||
struct perf_counter *leader = counter->group_leader, *sub;
|
||||
int n = 0, size = 0, err = -EFAULT;
|
||||
u64 values[3];
|
||||
|
||||
values[n++] = 1 + leader->nr_siblings;
|
||||
if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
|
||||
values[n++] = leader->total_time_enabled +
|
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atomic64_read(&leader->child_total_time_enabled);
|
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}
|
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if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
|
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values[n++] = leader->total_time_running +
|
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atomic64_read(&leader->child_total_time_running);
|
||||
}
|
||||
|
||||
size = n * sizeof(u64);
|
||||
|
||||
if (copy_to_user(buf, values, size))
|
||||
return -EFAULT;
|
||||
|
||||
err = perf_counter_read_entry(leader, read_format, buf + size);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
size += err;
|
||||
|
||||
list_for_each_entry(sub, &leader->sibling_list, list_entry) {
|
||||
err = perf_counter_read_entry(counter, read_format,
|
||||
buf + size);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
size += err;
|
||||
}
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static int perf_counter_read_one(struct perf_counter *counter,
|
||||
u64 read_format, char __user *buf)
|
||||
{
|
||||
u64 values[4];
|
||||
int n = 0;
|
||||
|
||||
values[n++] = perf_counter_read_value(counter);
|
||||
if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
|
||||
values[n++] = counter->total_time_enabled +
|
||||
atomic64_read(&counter->child_total_time_enabled);
|
||||
}
|
||||
if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
|
||||
values[n++] = counter->total_time_running +
|
||||
atomic64_read(&counter->child_total_time_running);
|
||||
}
|
||||
if (read_format & PERF_FORMAT_ID)
|
||||
values[n++] = primary_counter_id(counter);
|
||||
|
||||
if (copy_to_user(buf, values, n * sizeof(u64)))
|
||||
return -EFAULT;
|
||||
|
||||
return n * sizeof(u64);
|
||||
}
|
||||
|
||||
/*
|
||||
* Read the performance counter - simple non blocking version for now
|
||||
*/
|
||||
static ssize_t
|
||||
perf_read_hw(struct perf_counter *counter, char __user *buf, size_t count)
|
||||
{
|
||||
u64 values[4];
|
||||
int n;
|
||||
u64 read_format = counter->attr.read_format;
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* Return end-of-file for a read on a counter that is in
|
||||
|
|
@ -1720,28 +1832,18 @@ perf_read_hw(struct perf_counter *counter, char __user *buf, size_t count)
|
|||
if (counter->state == PERF_COUNTER_STATE_ERROR)
|
||||
return 0;
|
||||
|
||||
if (count < perf_counter_read_size(counter))
|
||||
return -ENOSPC;
|
||||
|
||||
WARN_ON_ONCE(counter->ctx->parent_ctx);
|
||||
mutex_lock(&counter->child_mutex);
|
||||
values[0] = perf_counter_read_tree(counter);
|
||||
n = 1;
|
||||
if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
|
||||
values[n++] = counter->total_time_enabled +
|
||||
atomic64_read(&counter->child_total_time_enabled);
|
||||
if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
|
||||
values[n++] = counter->total_time_running +
|
||||
atomic64_read(&counter->child_total_time_running);
|
||||
if (counter->attr.read_format & PERF_FORMAT_ID)
|
||||
values[n++] = primary_counter_id(counter);
|
||||
if (read_format & PERF_FORMAT_GROUP)
|
||||
ret = perf_counter_read_group(counter, read_format, buf);
|
||||
else
|
||||
ret = perf_counter_read_one(counter, read_format, buf);
|
||||
mutex_unlock(&counter->child_mutex);
|
||||
|
||||
if (count < n * sizeof(u64))
|
||||
return -EINVAL;
|
||||
count = n * sizeof(u64);
|
||||
|
||||
if (copy_to_user(buf, values, count))
|
||||
return -EFAULT;
|
||||
|
||||
return count;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t
|
||||
|
|
@ -2245,7 +2347,7 @@ static void perf_pending_counter(struct perf_pending_entry *entry)
|
|||
|
||||
if (counter->pending_disable) {
|
||||
counter->pending_disable = 0;
|
||||
perf_counter_disable(counter);
|
||||
__perf_counter_disable(counter);
|
||||
}
|
||||
|
||||
if (counter->pending_wakeup) {
|
||||
|
|
@ -2630,7 +2732,80 @@ static u32 perf_counter_tid(struct perf_counter *counter, struct task_struct *p)
|
|||
return task_pid_nr_ns(p, counter->ns);
|
||||
}
|
||||
|
||||
static void perf_counter_output(struct perf_counter *counter, int nmi,
|
||||
static void perf_output_read_one(struct perf_output_handle *handle,
|
||||
struct perf_counter *counter)
|
||||
{
|
||||
u64 read_format = counter->attr.read_format;
|
||||
u64 values[4];
|
||||
int n = 0;
|
||||
|
||||
values[n++] = atomic64_read(&counter->count);
|
||||
if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
|
||||
values[n++] = counter->total_time_enabled +
|
||||
atomic64_read(&counter->child_total_time_enabled);
|
||||
}
|
||||
if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
|
||||
values[n++] = counter->total_time_running +
|
||||
atomic64_read(&counter->child_total_time_running);
|
||||
}
|
||||
if (read_format & PERF_FORMAT_ID)
|
||||
values[n++] = primary_counter_id(counter);
|
||||
|
||||
perf_output_copy(handle, values, n * sizeof(u64));
|
||||
}
|
||||
|
||||
/*
|
||||
* XXX PERF_FORMAT_GROUP vs inherited counters seems difficult.
|
||||
*/
|
||||
static void perf_output_read_group(struct perf_output_handle *handle,
|
||||
struct perf_counter *counter)
|
||||
{
|
||||
struct perf_counter *leader = counter->group_leader, *sub;
|
||||
u64 read_format = counter->attr.read_format;
|
||||
u64 values[5];
|
||||
int n = 0;
|
||||
|
||||
values[n++] = 1 + leader->nr_siblings;
|
||||
|
||||
if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
|
||||
values[n++] = leader->total_time_enabled;
|
||||
|
||||
if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
|
||||
values[n++] = leader->total_time_running;
|
||||
|
||||
if (leader != counter)
|
||||
leader->pmu->read(leader);
|
||||
|
||||
values[n++] = atomic64_read(&leader->count);
|
||||
if (read_format & PERF_FORMAT_ID)
|
||||
values[n++] = primary_counter_id(leader);
|
||||
|
||||
perf_output_copy(handle, values, n * sizeof(u64));
|
||||
|
||||
list_for_each_entry(sub, &leader->sibling_list, list_entry) {
|
||||
n = 0;
|
||||
|
||||
if (sub != counter)
|
||||
sub->pmu->read(sub);
|
||||
|
||||
values[n++] = atomic64_read(&sub->count);
|
||||
if (read_format & PERF_FORMAT_ID)
|
||||
values[n++] = primary_counter_id(sub);
|
||||
|
||||
perf_output_copy(handle, values, n * sizeof(u64));
|
||||
}
|
||||
}
|
||||
|
||||
static void perf_output_read(struct perf_output_handle *handle,
|
||||
struct perf_counter *counter)
|
||||
{
|
||||
if (counter->attr.read_format & PERF_FORMAT_GROUP)
|
||||
perf_output_read_group(handle, counter);
|
||||
else
|
||||
perf_output_read_one(handle, counter);
|
||||
}
|
||||
|
||||
void perf_counter_output(struct perf_counter *counter, int nmi,
|
||||
struct perf_sample_data *data)
|
||||
{
|
||||
int ret;
|
||||
|
|
@ -2641,10 +2816,6 @@ static void perf_counter_output(struct perf_counter *counter, int nmi,
|
|||
struct {
|
||||
u32 pid, tid;
|
||||
} tid_entry;
|
||||
struct {
|
||||
u64 id;
|
||||
u64 counter;
|
||||
} group_entry;
|
||||
struct perf_callchain_entry *callchain = NULL;
|
||||
int callchain_size = 0;
|
||||
u64 time;
|
||||
|
|
@ -2699,10 +2870,8 @@ static void perf_counter_output(struct perf_counter *counter, int nmi,
|
|||
if (sample_type & PERF_SAMPLE_PERIOD)
|
||||
header.size += sizeof(u64);
|
||||
|
||||
if (sample_type & PERF_SAMPLE_GROUP) {
|
||||
header.size += sizeof(u64) +
|
||||
counter->nr_siblings * sizeof(group_entry);
|
||||
}
|
||||
if (sample_type & PERF_SAMPLE_READ)
|
||||
header.size += perf_counter_read_size(counter);
|
||||
|
||||
if (sample_type & PERF_SAMPLE_CALLCHAIN) {
|
||||
callchain = perf_callchain(data->regs);
|
||||
|
|
@ -2759,26 +2928,8 @@ static void perf_counter_output(struct perf_counter *counter, int nmi,
|
|||
if (sample_type & PERF_SAMPLE_PERIOD)
|
||||
perf_output_put(&handle, data->period);
|
||||
|
||||
/*
|
||||
* XXX PERF_SAMPLE_GROUP vs inherited counters seems difficult.
|
||||
*/
|
||||
if (sample_type & PERF_SAMPLE_GROUP) {
|
||||
struct perf_counter *leader, *sub;
|
||||
u64 nr = counter->nr_siblings;
|
||||
|
||||
perf_output_put(&handle, nr);
|
||||
|
||||
leader = counter->group_leader;
|
||||
list_for_each_entry(sub, &leader->sibling_list, list_entry) {
|
||||
if (sub != counter)
|
||||
sub->pmu->read(sub);
|
||||
|
||||
group_entry.id = primary_counter_id(sub);
|
||||
group_entry.counter = atomic64_read(&sub->count);
|
||||
|
||||
perf_output_put(&handle, group_entry);
|
||||
}
|
||||
}
|
||||
if (sample_type & PERF_SAMPLE_READ)
|
||||
perf_output_read(&handle, counter);
|
||||
|
||||
if (sample_type & PERF_SAMPLE_CALLCHAIN) {
|
||||
if (callchain)
|
||||
|
|
@ -2817,8 +2968,6 @@ struct perf_read_event {
|
|||
|
||||
u32 pid;
|
||||
u32 tid;
|
||||
u64 value;
|
||||
u64 format[3];
|
||||
};
|
||||
|
||||
static void
|
||||
|
|
@ -2830,34 +2979,20 @@ perf_counter_read_event(struct perf_counter *counter,
|
|||
.header = {
|
||||
.type = PERF_EVENT_READ,
|
||||
.misc = 0,
|
||||
.size = sizeof(event) - sizeof(event.format),
|
||||
.size = sizeof(event) + perf_counter_read_size(counter),
|
||||
},
|
||||
.pid = perf_counter_pid(counter, task),
|
||||
.tid = perf_counter_tid(counter, task),
|
||||
.value = atomic64_read(&counter->count),
|
||||
};
|
||||
int ret, i = 0;
|
||||
|
||||
if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
|
||||
event.header.size += sizeof(u64);
|
||||
event.format[i++] = counter->total_time_enabled;
|
||||
}
|
||||
|
||||
if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
|
||||
event.header.size += sizeof(u64);
|
||||
event.format[i++] = counter->total_time_running;
|
||||
}
|
||||
|
||||
if (counter->attr.read_format & PERF_FORMAT_ID) {
|
||||
event.header.size += sizeof(u64);
|
||||
event.format[i++] = primary_counter_id(counter);
|
||||
}
|
||||
int ret;
|
||||
|
||||
ret = perf_output_begin(&handle, counter, event.header.size, 0, 0);
|
||||
if (ret)
|
||||
return;
|
||||
|
||||
perf_output_copy(&handle, &event, event.header.size);
|
||||
perf_output_put(&handle, event);
|
||||
perf_output_read(&handle, counter);
|
||||
|
||||
perf_output_end(&handle);
|
||||
}
|
||||
|
||||
|
|
@ -2893,10 +3028,10 @@ static void perf_counter_task_output(struct perf_counter *counter,
|
|||
return;
|
||||
|
||||
task_event->event.pid = perf_counter_pid(counter, task);
|
||||
task_event->event.ppid = perf_counter_pid(counter, task->real_parent);
|
||||
task_event->event.ppid = perf_counter_pid(counter, current);
|
||||
|
||||
task_event->event.tid = perf_counter_tid(counter, task);
|
||||
task_event->event.ptid = perf_counter_tid(counter, task->real_parent);
|
||||
task_event->event.ptid = perf_counter_tid(counter, current);
|
||||
|
||||
perf_output_put(&handle, task_event->event);
|
||||
perf_output_end(&handle);
|
||||
|
|
@ -3443,40 +3578,32 @@ static void perf_swcounter_add(struct perf_counter *counter, u64 nr,
|
|||
|
||||
static int perf_swcounter_is_counting(struct perf_counter *counter)
|
||||
{
|
||||
struct perf_counter_context *ctx;
|
||||
unsigned long flags;
|
||||
int count;
|
||||
|
||||
/*
|
||||
* The counter is active, we're good!
|
||||
*/
|
||||
if (counter->state == PERF_COUNTER_STATE_ACTIVE)
|
||||
return 1;
|
||||
|
||||
/*
|
||||
* The counter is off/error, not counting.
|
||||
*/
|
||||
if (counter->state != PERF_COUNTER_STATE_INACTIVE)
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* If the counter is inactive, it could be just because
|
||||
* its task is scheduled out, or because it's in a group
|
||||
* which could not go on the PMU. We want to count in
|
||||
* the first case but not the second. If the context is
|
||||
* currently active then an inactive software counter must
|
||||
* be the second case. If it's not currently active then
|
||||
* we need to know whether the counter was active when the
|
||||
* context was last active, which we can determine by
|
||||
* comparing counter->tstamp_stopped with ctx->time.
|
||||
*
|
||||
* We are within an RCU read-side critical section,
|
||||
* which protects the existence of *ctx.
|
||||
* The counter is inactive, if the context is active
|
||||
* we're part of a group that didn't make it on the 'pmu',
|
||||
* not counting.
|
||||
*/
|
||||
ctx = counter->ctx;
|
||||
spin_lock_irqsave(&ctx->lock, flags);
|
||||
count = 1;
|
||||
/* Re-check state now we have the lock */
|
||||
if (counter->state < PERF_COUNTER_STATE_INACTIVE ||
|
||||
counter->ctx->is_active ||
|
||||
counter->tstamp_stopped < ctx->time)
|
||||
count = 0;
|
||||
spin_unlock_irqrestore(&ctx->lock, flags);
|
||||
return count;
|
||||
if (counter->ctx->is_active)
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* We're inactive and the context is too, this means the
|
||||
* task is scheduled out, we're counting events that happen
|
||||
* to us, like migration events.
|
||||
*/
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int perf_swcounter_match(struct perf_counter *counter,
|
||||
|
|
@ -3928,9 +4055,9 @@ perf_counter_alloc(struct perf_counter_attr *attr,
|
|||
atomic64_set(&hwc->period_left, hwc->sample_period);
|
||||
|
||||
/*
|
||||
* we currently do not support PERF_SAMPLE_GROUP on inherited counters
|
||||
* we currently do not support PERF_FORMAT_GROUP on inherited counters
|
||||
*/
|
||||
if (attr->inherit && (attr->sample_type & PERF_SAMPLE_GROUP))
|
||||
if (attr->inherit && (attr->read_format & PERF_FORMAT_GROUP))
|
||||
goto done;
|
||||
|
||||
switch (attr->type) {
|
||||
|
|
@ -4592,6 +4719,11 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
|
|||
perf_counter_init_cpu(cpu);
|
||||
break;
|
||||
|
||||
case CPU_ONLINE:
|
||||
case CPU_ONLINE_FROZEN:
|
||||
hw_perf_counter_setup_online(cpu);
|
||||
break;
|
||||
|
||||
case CPU_DOWN_PREPARE:
|
||||
case CPU_DOWN_PREPARE_FROZEN:
|
||||
perf_counter_exit_cpu(cpu);
|
||||
|
|
@ -4616,6 +4748,8 @@ void __init perf_counter_init(void)
|
|||
{
|
||||
perf_cpu_notify(&perf_cpu_nb, (unsigned long)CPU_UP_PREPARE,
|
||||
(void *)(long)smp_processor_id());
|
||||
perf_cpu_notify(&perf_cpu_nb, (unsigned long)CPU_ONLINE,
|
||||
(void *)(long)smp_processor_id());
|
||||
register_cpu_notifier(&perf_cpu_nb);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -382,22 +382,29 @@ endif
|
|||
ifdef NO_DEMANGLE
|
||||
BASIC_CFLAGS += -DNO_DEMANGLE
|
||||
else
|
||||
|
||||
has_bfd := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd > /dev/null 2>&1 && echo y")
|
||||
|
||||
has_bfd_iberty := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd -liberty > /dev/null 2>&1 && echo y")
|
||||
|
||||
has_bfd_iberty_z := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd -liberty -lz > /dev/null 2>&1 && echo y")
|
||||
|
||||
ifeq ($(has_bfd),y)
|
||||
EXTLIBS += -lbfd
|
||||
else ifeq ($(has_bfd_iberty),y)
|
||||
EXTLIBS += -lbfd -liberty
|
||||
else ifeq ($(has_bfd_iberty_z),y)
|
||||
EXTLIBS += -lbfd -liberty -lz
|
||||
else
|
||||
msg := $(warning No bfd.h/libbfd found, install binutils-dev[el] to gain symbol demangling)
|
||||
BASIC_CFLAGS += -DNO_DEMANGLE
|
||||
has_bfd_iberty := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd -liberty > /dev/null 2>&1 && echo y")
|
||||
ifeq ($(has_bfd_iberty),y)
|
||||
EXTLIBS += -lbfd -liberty
|
||||
else
|
||||
has_bfd_iberty_z := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd -liberty -lz > /dev/null 2>&1 && echo y")
|
||||
ifeq ($(has_bfd_iberty_z),y)
|
||||
EXTLIBS += -lbfd -liberty -lz
|
||||
else
|
||||
has_cplus_demangle := $(shell sh -c "(echo 'extern char *cplus_demangle(const char *, int);'; echo 'int main(void) { cplus_demangle(0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -liberty > /dev/null 2>&1 && echo y")
|
||||
ifeq ($(has_cplus_demangle),y)
|
||||
EXTLIBS += -liberty
|
||||
BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
|
||||
else
|
||||
msg := $(warning No bfd.h/libbfd found, install binutils-dev[el] to gain symbol demangling)
|
||||
BASIC_CFLAGS += -DNO_DEMANGLE
|
||||
endif
|
||||
endif
|
||||
endif
|
||||
endif
|
||||
endif
|
||||
|
||||
|
|
|
|||
|
|
@ -10,11 +10,12 @@
|
|||
|
||||
#include "perf.h"
|
||||
|
||||
#include "util/parse-options.h"
|
||||
#include "util/parse-events.h"
|
||||
#include "util/cache.h"
|
||||
|
||||
int cmd_list(int argc __used, const char **argv __used, const char *prefix __used)
|
||||
{
|
||||
setup_pager();
|
||||
print_events();
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -34,7 +34,9 @@ static int output;
|
|||
static const char *output_name = "perf.data";
|
||||
static int group = 0;
|
||||
static unsigned int realtime_prio = 0;
|
||||
static int raw_samples = 0;
|
||||
static int system_wide = 0;
|
||||
static int profile_cpu = -1;
|
||||
static pid_t target_pid = -1;
|
||||
static int inherit = 1;
|
||||
static int force = 0;
|
||||
|
|
@ -203,46 +205,48 @@ static void sig_atexit(void)
|
|||
kill(getpid(), signr);
|
||||
}
|
||||
|
||||
static void pid_synthesize_comm_event(pid_t pid, int full)
|
||||
static pid_t pid_synthesize_comm_event(pid_t pid, int full)
|
||||
{
|
||||
struct comm_event comm_ev;
|
||||
char filename[PATH_MAX];
|
||||
char bf[BUFSIZ];
|
||||
int fd;
|
||||
size_t size;
|
||||
char *field, *sep;
|
||||
FILE *fp;
|
||||
size_t size = 0;
|
||||
DIR *tasks;
|
||||
struct dirent dirent, *next;
|
||||
pid_t tgid = 0;
|
||||
|
||||
snprintf(filename, sizeof(filename), "/proc/%d/stat", pid);
|
||||
snprintf(filename, sizeof(filename), "/proc/%d/status", pid);
|
||||
|
||||
fd = open(filename, O_RDONLY);
|
||||
if (fd < 0) {
|
||||
fp = fopen(filename, "r");
|
||||
if (fd == NULL) {
|
||||
/*
|
||||
* We raced with a task exiting - just return:
|
||||
*/
|
||||
if (verbose)
|
||||
fprintf(stderr, "couldn't open %s\n", filename);
|
||||
return;
|
||||
return 0;
|
||||
}
|
||||
if (read(fd, bf, sizeof(bf)) < 0) {
|
||||
fprintf(stderr, "couldn't read %s\n", filename);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
close(fd);
|
||||
|
||||
/* 9027 (cat) R 6747 9027 6747 34816 9027 ... */
|
||||
memset(&comm_ev, 0, sizeof(comm_ev));
|
||||
field = strchr(bf, '(');
|
||||
if (field == NULL)
|
||||
goto out_failure;
|
||||
sep = strchr(++field, ')');
|
||||
if (sep == NULL)
|
||||
goto out_failure;
|
||||
size = sep - field;
|
||||
memcpy(comm_ev.comm, field, size++);
|
||||
while (!comm_ev.comm[0] || !comm_ev.pid) {
|
||||
if (fgets(bf, sizeof(bf), fp) == NULL)
|
||||
goto out_failure;
|
||||
|
||||
if (memcmp(bf, "Name:", 5) == 0) {
|
||||
char *name = bf + 5;
|
||||
while (*name && isspace(*name))
|
||||
++name;
|
||||
size = strlen(name) - 1;
|
||||
memcpy(comm_ev.comm, name, size++);
|
||||
} else if (memcmp(bf, "Tgid:", 5) == 0) {
|
||||
char *tgids = bf + 5;
|
||||
while (*tgids && isspace(*tgids))
|
||||
++tgids;
|
||||
tgid = comm_ev.pid = atoi(tgids);
|
||||
}
|
||||
}
|
||||
|
||||
comm_ev.pid = pid;
|
||||
comm_ev.header.type = PERF_EVENT_COMM;
|
||||
size = ALIGN(size, sizeof(u64));
|
||||
comm_ev.header.size = sizeof(comm_ev) - (sizeof(comm_ev.comm) - size);
|
||||
|
|
@ -251,7 +255,7 @@ static void pid_synthesize_comm_event(pid_t pid, int full)
|
|||
comm_ev.tid = pid;
|
||||
|
||||
write_output(&comm_ev, comm_ev.header.size);
|
||||
return;
|
||||
goto out_fclose;
|
||||
}
|
||||
|
||||
snprintf(filename, sizeof(filename), "/proc/%d/task", pid);
|
||||
|
|
@ -268,7 +272,10 @@ static void pid_synthesize_comm_event(pid_t pid, int full)
|
|||
write_output(&comm_ev, comm_ev.header.size);
|
||||
}
|
||||
closedir(tasks);
|
||||
return;
|
||||
|
||||
out_fclose:
|
||||
fclose(fp);
|
||||
return tgid;
|
||||
|
||||
out_failure:
|
||||
fprintf(stderr, "couldn't get COMM and pgid, malformed %s\n",
|
||||
|
|
@ -276,7 +283,7 @@ out_failure:
|
|||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
static void pid_synthesize_mmap_samples(pid_t pid)
|
||||
static void pid_synthesize_mmap_samples(pid_t pid, pid_t tgid)
|
||||
{
|
||||
char filename[PATH_MAX];
|
||||
FILE *fp;
|
||||
|
|
@ -328,7 +335,7 @@ static void pid_synthesize_mmap_samples(pid_t pid)
|
|||
mmap_ev.len -= mmap_ev.start;
|
||||
mmap_ev.header.size = (sizeof(mmap_ev) -
|
||||
(sizeof(mmap_ev.filename) - size));
|
||||
mmap_ev.pid = pid;
|
||||
mmap_ev.pid = tgid;
|
||||
mmap_ev.tid = pid;
|
||||
|
||||
write_output(&mmap_ev, mmap_ev.header.size);
|
||||
|
|
@ -347,14 +354,14 @@ static void synthesize_all(void)
|
|||
|
||||
while (!readdir_r(proc, &dirent, &next) && next) {
|
||||
char *end;
|
||||
pid_t pid;
|
||||
pid_t pid, tgid;
|
||||
|
||||
pid = strtol(dirent.d_name, &end, 10);
|
||||
if (*end) /* only interested in proper numerical dirents */
|
||||
continue;
|
||||
|
||||
pid_synthesize_comm_event(pid, 1);
|
||||
pid_synthesize_mmap_samples(pid);
|
||||
tgid = pid_synthesize_comm_event(pid, 1);
|
||||
pid_synthesize_mmap_samples(pid, tgid);
|
||||
}
|
||||
|
||||
closedir(proc);
|
||||
|
|
@ -392,7 +399,7 @@ static void create_counter(int counter, int cpu, pid_t pid)
|
|||
PERF_FORMAT_TOTAL_TIME_RUNNING |
|
||||
PERF_FORMAT_ID;
|
||||
|
||||
attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
|
||||
attr->sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID;
|
||||
|
||||
if (freq) {
|
||||
attr->sample_type |= PERF_SAMPLE_PERIOD;
|
||||
|
|
@ -412,6 +419,8 @@ static void create_counter(int counter, int cpu, pid_t pid)
|
|||
if (call_graph)
|
||||
attr->sample_type |= PERF_SAMPLE_CALLCHAIN;
|
||||
|
||||
if (raw_samples)
|
||||
attr->sample_type |= PERF_SAMPLE_RAW;
|
||||
|
||||
attr->mmap = track;
|
||||
attr->comm = track;
|
||||
|
|
@ -426,6 +435,8 @@ try_again:
|
|||
|
||||
if (err == EPERM)
|
||||
die("Permission error - are you root?\n");
|
||||
else if (err == ENODEV && profile_cpu != -1)
|
||||
die("No such device - did you specify an out-of-range profile CPU?\n");
|
||||
|
||||
/*
|
||||
* If it's cycles then fall back to hrtimer
|
||||
|
|
@ -559,16 +570,22 @@ static int __cmd_record(int argc, const char **argv)
|
|||
if (pid == -1)
|
||||
pid = getpid();
|
||||
|
||||
open_counters(-1, pid);
|
||||
} else for (i = 0; i < nr_cpus; i++)
|
||||
open_counters(i, target_pid);
|
||||
open_counters(profile_cpu, pid);
|
||||
} else {
|
||||
if (profile_cpu != -1) {
|
||||
open_counters(profile_cpu, target_pid);
|
||||
} else {
|
||||
for (i = 0; i < nr_cpus; i++)
|
||||
open_counters(i, target_pid);
|
||||
}
|
||||
}
|
||||
|
||||
if (file_new)
|
||||
perf_header__write(header, output);
|
||||
|
||||
if (!system_wide) {
|
||||
pid_synthesize_comm_event(pid, 0);
|
||||
pid_synthesize_mmap_samples(pid);
|
||||
pid_t tgid = pid_synthesize_comm_event(pid, 0);
|
||||
pid_synthesize_mmap_samples(pid, tgid);
|
||||
} else
|
||||
synthesize_all();
|
||||
|
||||
|
|
@ -636,10 +653,14 @@ static const struct option options[] = {
|
|||
"record events on existing pid"),
|
||||
OPT_INTEGER('r', "realtime", &realtime_prio,
|
||||
"collect data with this RT SCHED_FIFO priority"),
|
||||
OPT_BOOLEAN('R', "raw-samples", &raw_samples,
|
||||
"collect raw sample records from all opened counters"),
|
||||
OPT_BOOLEAN('a', "all-cpus", &system_wide,
|
||||
"system-wide collection from all CPUs"),
|
||||
OPT_BOOLEAN('A', "append", &append_file,
|
||||
"append to the output file to do incremental profiling"),
|
||||
OPT_INTEGER('C', "profile_cpu", &profile_cpu,
|
||||
"CPU to profile on"),
|
||||
OPT_BOOLEAN('f', "force", &force,
|
||||
"overwrite existing data file"),
|
||||
OPT_LONG('c', "count", &default_interval,
|
||||
|
|
|
|||
|
|
@ -1526,11 +1526,11 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
|
|||
more_data += sizeof(u64);
|
||||
}
|
||||
|
||||
dprintf("%p [%p]: PERF_EVENT_SAMPLE (IP, %d): %d: %p period: %Ld\n",
|
||||
dprintf("%p [%p]: PERF_EVENT_SAMPLE (IP, %d): %d/%d: %p period: %Ld\n",
|
||||
(void *)(offset + head),
|
||||
(void *)(long)(event->header.size),
|
||||
event->header.misc,
|
||||
event->ip.pid,
|
||||
event->ip.pid, event->ip.tid,
|
||||
(void *)(long)ip,
|
||||
(long long)period);
|
||||
|
||||
|
|
@ -1590,10 +1590,11 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
|
|||
if (show & show_mask) {
|
||||
struct symbol *sym = resolve_symbol(thread, &map, &dso, &ip);
|
||||
|
||||
if (dso_list && dso && dso->name && !strlist__has_entry(dso_list, dso->name))
|
||||
if (dso_list && (!dso || !dso->name ||
|
||||
!strlist__has_entry(dso_list, dso->name)))
|
||||
return 0;
|
||||
|
||||
if (sym_list && sym && !strlist__has_entry(sym_list, sym->name))
|
||||
if (sym_list && (!sym || !strlist__has_entry(sym_list, sym->name)))
|
||||
return 0;
|
||||
|
||||
if (hist_entry__add(thread, map, dso, sym, ip, chain, level, period)) {
|
||||
|
|
@ -1612,10 +1613,11 @@ process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
|
|||
struct thread *thread = threads__findnew(event->mmap.pid);
|
||||
struct map *map = map__new(&event->mmap);
|
||||
|
||||
dprintf("%p [%p]: PERF_EVENT_MMAP %d: [%p(%p) @ %p]: %s\n",
|
||||
dprintf("%p [%p]: PERF_EVENT_MMAP %d/%d: [%p(%p) @ %p]: %s\n",
|
||||
(void *)(offset + head),
|
||||
(void *)(long)(event->header.size),
|
||||
event->mmap.pid,
|
||||
event->mmap.tid,
|
||||
(void *)(long)event->mmap.start,
|
||||
(void *)(long)event->mmap.len,
|
||||
(void *)(long)event->mmap.pgoff,
|
||||
|
|
|
|||
|
|
@ -379,6 +379,7 @@ static int parse_tracepoint_event(const char **strp,
|
|||
struct perf_counter_attr *attr)
|
||||
{
|
||||
const char *evt_name;
|
||||
char *flags;
|
||||
char sys_name[MAX_EVENT_LENGTH];
|
||||
char id_buf[4];
|
||||
int fd;
|
||||
|
|
@ -400,6 +401,15 @@ static int parse_tracepoint_event(const char **strp,
|
|||
strncpy(sys_name, *strp, sys_length);
|
||||
sys_name[sys_length] = '\0';
|
||||
evt_name = evt_name + 1;
|
||||
|
||||
flags = strchr(evt_name, ':');
|
||||
if (flags) {
|
||||
*flags = '\0';
|
||||
flags++;
|
||||
if (!strncmp(flags, "record", strlen(flags)))
|
||||
attr->sample_type |= PERF_SAMPLE_RAW;
|
||||
}
|
||||
|
||||
evt_length = strlen(evt_name);
|
||||
if (evt_length >= MAX_EVENT_LENGTH)
|
||||
return 0;
|
||||
|
|
|
|||
|
|
@ -7,23 +7,8 @@
|
|||
#include <gelf.h>
|
||||
#include <elf.h>
|
||||
|
||||
#ifndef NO_DEMANGLE
|
||||
#include <bfd.h>
|
||||
#else
|
||||
static inline
|
||||
char *bfd_demangle(void __used *v, const char __used *c, int __used i)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
|
||||
const char *sym_hist_filter;
|
||||
|
||||
#ifndef DMGL_PARAMS
|
||||
#define DMGL_PARAMS (1 << 0) /* Include function args */
|
||||
#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
|
||||
#endif
|
||||
|
||||
enum dso_origin {
|
||||
DSO__ORIG_KERNEL = 0,
|
||||
DSO__ORIG_JAVA_JIT,
|
||||
|
|
@ -816,6 +801,8 @@ more:
|
|||
}
|
||||
out:
|
||||
free(name);
|
||||
if (ret < 0 && strstr(self->name, " (deleted)") != NULL)
|
||||
return 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -7,6 +7,30 @@
|
|||
#include <linux/rbtree.h>
|
||||
#include "module.h"
|
||||
|
||||
#ifdef HAVE_CPLUS_DEMANGLE
|
||||
extern char *cplus_demangle(const char *, int);
|
||||
|
||||
static inline char *bfd_demangle(void __used *v, const char *c, int i)
|
||||
{
|
||||
return cplus_demangle(c, i);
|
||||
}
|
||||
#else
|
||||
#ifdef NO_DEMANGLE
|
||||
static inline char *bfd_demangle(void __used *v, const char __used *c,
|
||||
int __used i)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
#else
|
||||
#include <bfd.h>
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef DMGL_PARAMS
|
||||
#define DMGL_PARAMS (1 << 0) /* Include function args */
|
||||
#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
|
||||
#endif
|
||||
|
||||
struct symbol {
|
||||
struct rb_node rb_node;
|
||||
u64 start;
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче