mirror of https://gitee.com/openkylin/linux.git
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "A bit larger than what I'd wish for - half of it is due to hw driver updates to Intel Ivy-Bridge which info got recently released, cycles:pp should work there now too, amongst other things. (but we are generally making exceptions for hardware enablement of this type.) There are also callchain fixes in it - responding to mostly theoretical (but valid) concerns. The tooling side sports perf.data endianness/portability fixes which did not make it for the merge window - and various other fixes as well." * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits) perf/x86: Check user address explicitly in copy_from_user_nmi() perf/x86: Check if user fp is valid perf: Limit callchains to 127 perf/x86: Allow multiple stacks perf/x86: Update SNB PEBS constraints perf/x86: Enable/Add IvyBridge hardware support perf/x86: Implement cycles:p for SNB/IVB perf/x86: Fix Intel shared extra MSR allocation x86/decoder: Fix bsr/bsf/jmpe decoding with operand-size prefix perf: Remove duplicate invocation on perf_event_for_each perf uprobes: Remove unnecessary check before strlist__delete perf symbols: Check for valid dso before creating map perf evsel: Fix 32 bit values endianity swap for sample_id_all header perf session: Handle endianity swap on sample_id_all header data perf symbols: Handle different endians properly during symbol load perf evlist: Pass third argument to ioctl explicitly perf tools: Update ioctl documentation for PERF_IOC_FLAG_GROUP perf tools: Make --version show kernel version instead of pull req tag perf tools: Check if callchain is corrupted perf callchain: Make callchain cursors TLS ...
This commit is contained in:
Linus Torvalds
commit
106544d81d
|
|
@ -33,9 +33,8 @@
|
|||
#define segment_eq(a, b) ((a).seg == (b).seg)
|
||||
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||||
#define user_addr_max() (current_thread_info()->addr_limit.seg)
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#define __addr_ok(addr) \
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((unsigned long __force)(addr) < \
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||||
(current_thread_info()->addr_limit.seg))
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||||
#define __addr_ok(addr) \
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((unsigned long __force)(addr) < user_addr_max())
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||||
|
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/*
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* Test whether a block of memory is a valid user space address.
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||||
|
|
@ -47,14 +46,14 @@
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|||
* This needs 33-bit (65-bit for x86_64) arithmetic. We have a carry...
|
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*/
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#define __range_not_ok(addr, size) \
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#define __range_not_ok(addr, size, limit) \
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({ \
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unsigned long flag, roksum; \
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__chk_user_ptr(addr); \
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asm("add %3,%1 ; sbb %0,%0 ; cmp %1,%4 ; sbb $0,%0" \
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: "=&r" (flag), "=r" (roksum) \
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: "1" (addr), "g" ((long)(size)), \
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"rm" (current_thread_info()->addr_limit.seg)); \
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"rm" (limit)); \
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flag; \
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})
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|
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@ -77,7 +76,8 @@
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* checks that the pointer is in the user space range - after calling
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* this function, memory access functions may still return -EFAULT.
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*/
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#define access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0))
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#define access_ok(type, addr, size) \
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(likely(__range_not_ok(addr, size, user_addr_max()) == 0))
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|
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/*
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* The exception table consists of pairs of addresses relative to the
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|
|
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|||
|
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@ -1496,6 +1496,7 @@ static struct cpu_hw_events *allocate_fake_cpuc(void)
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if (!cpuc->shared_regs)
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goto error;
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}
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cpuc->is_fake = 1;
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return cpuc;
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error:
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free_fake_cpuc(cpuc);
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|
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@ -1756,6 +1757,12 @@ perf_callchain_kernel(struct perf_callchain_entry *entry, struct pt_regs *regs)
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dump_trace(NULL, regs, NULL, 0, &backtrace_ops, entry);
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}
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static inline int
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valid_user_frame(const void __user *fp, unsigned long size)
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{
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return (__range_not_ok(fp, size, TASK_SIZE) == 0);
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}
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#ifdef CONFIG_COMPAT
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#include <asm/compat.h>
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|
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@ -1780,7 +1787,7 @@ perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry *entry)
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if (bytes != sizeof(frame))
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break;
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if (fp < compat_ptr(regs->sp))
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if (!valid_user_frame(fp, sizeof(frame)))
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break;
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perf_callchain_store(entry, frame.return_address);
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|
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@ -1826,7 +1833,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
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if (bytes != sizeof(frame))
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break;
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if ((unsigned long)fp < regs->sp)
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if (!valid_user_frame(fp, sizeof(frame)))
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break;
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perf_callchain_store(entry, frame.return_address);
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||||
|
|
|
|||
|
|
@ -117,6 +117,7 @@ struct cpu_hw_events {
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struct perf_event *event_list[X86_PMC_IDX_MAX]; /* in enabled order */
|
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|
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unsigned int group_flag;
|
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int is_fake;
|
||||
|
||||
/*
|
||||
* Intel DebugStore bits
|
||||
|
|
@ -364,6 +365,7 @@ struct x86_pmu {
|
|||
int pebs_record_size;
|
||||
void (*drain_pebs)(struct pt_regs *regs);
|
||||
struct event_constraint *pebs_constraints;
|
||||
void (*pebs_aliases)(struct perf_event *event);
|
||||
|
||||
/*
|
||||
* Intel LBR
|
||||
|
|
|
|||
|
|
@ -1119,27 +1119,33 @@ intel_bts_constraints(struct perf_event *event)
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|||
return NULL;
|
||||
}
|
||||
|
||||
static bool intel_try_alt_er(struct perf_event *event, int orig_idx)
|
||||
static int intel_alt_er(int idx)
|
||||
{
|
||||
if (!(x86_pmu.er_flags & ERF_HAS_RSP_1))
|
||||
return false;
|
||||
return idx;
|
||||
|
||||
if (event->hw.extra_reg.idx == EXTRA_REG_RSP_0) {
|
||||
event->hw.config &= ~INTEL_ARCH_EVENT_MASK;
|
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event->hw.config |= 0x01bb;
|
||||
event->hw.extra_reg.idx = EXTRA_REG_RSP_1;
|
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event->hw.extra_reg.reg = MSR_OFFCORE_RSP_1;
|
||||
} else if (event->hw.extra_reg.idx == EXTRA_REG_RSP_1) {
|
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if (idx == EXTRA_REG_RSP_0)
|
||||
return EXTRA_REG_RSP_1;
|
||||
|
||||
if (idx == EXTRA_REG_RSP_1)
|
||||
return EXTRA_REG_RSP_0;
|
||||
|
||||
return idx;
|
||||
}
|
||||
|
||||
static void intel_fixup_er(struct perf_event *event, int idx)
|
||||
{
|
||||
event->hw.extra_reg.idx = idx;
|
||||
|
||||
if (idx == EXTRA_REG_RSP_0) {
|
||||
event->hw.config &= ~INTEL_ARCH_EVENT_MASK;
|
||||
event->hw.config |= 0x01b7;
|
||||
event->hw.extra_reg.idx = EXTRA_REG_RSP_0;
|
||||
event->hw.extra_reg.reg = MSR_OFFCORE_RSP_0;
|
||||
} else if (idx == EXTRA_REG_RSP_1) {
|
||||
event->hw.config &= ~INTEL_ARCH_EVENT_MASK;
|
||||
event->hw.config |= 0x01bb;
|
||||
event->hw.extra_reg.reg = MSR_OFFCORE_RSP_1;
|
||||
}
|
||||
|
||||
if (event->hw.extra_reg.idx == orig_idx)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -1157,14 +1163,18 @@ __intel_shared_reg_get_constraints(struct cpu_hw_events *cpuc,
|
|||
struct event_constraint *c = &emptyconstraint;
|
||||
struct er_account *era;
|
||||
unsigned long flags;
|
||||
int orig_idx = reg->idx;
|
||||
int idx = reg->idx;
|
||||
|
||||
/* already allocated shared msr */
|
||||
if (reg->alloc)
|
||||
/*
|
||||
* reg->alloc can be set due to existing state, so for fake cpuc we
|
||||
* need to ignore this, otherwise we might fail to allocate proper fake
|
||||
* state for this extra reg constraint. Also see the comment below.
|
||||
*/
|
||||
if (reg->alloc && !cpuc->is_fake)
|
||||
return NULL; /* call x86_get_event_constraint() */
|
||||
|
||||
again:
|
||||
era = &cpuc->shared_regs->regs[reg->idx];
|
||||
era = &cpuc->shared_regs->regs[idx];
|
||||
/*
|
||||
* we use spin_lock_irqsave() to avoid lockdep issues when
|
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* passing a fake cpuc
|
||||
|
|
@ -1173,6 +1183,29 @@ __intel_shared_reg_get_constraints(struct cpu_hw_events *cpuc,
|
|||
|
||||
if (!atomic_read(&era->ref) || era->config == reg->config) {
|
||||
|
||||
/*
|
||||
* If its a fake cpuc -- as per validate_{group,event}() we
|
||||
* shouldn't touch event state and we can avoid doing so
|
||||
* since both will only call get_event_constraints() once
|
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* on each event, this avoids the need for reg->alloc.
|
||||
*
|
||||
* Not doing the ER fixup will only result in era->reg being
|
||||
* wrong, but since we won't actually try and program hardware
|
||||
* this isn't a problem either.
|
||||
*/
|
||||
if (!cpuc->is_fake) {
|
||||
if (idx != reg->idx)
|
||||
intel_fixup_er(event, idx);
|
||||
|
||||
/*
|
||||
* x86_schedule_events() can call get_event_constraints()
|
||||
* multiple times on events in the case of incremental
|
||||
* scheduling(). reg->alloc ensures we only do the ER
|
||||
* allocation once.
|
||||
*/
|
||||
reg->alloc = 1;
|
||||
}
|
||||
|
||||
/* lock in msr value */
|
||||
era->config = reg->config;
|
||||
era->reg = reg->reg;
|
||||
|
|
@ -1180,17 +1213,17 @@ __intel_shared_reg_get_constraints(struct cpu_hw_events *cpuc,
|
|||
/* one more user */
|
||||
atomic_inc(&era->ref);
|
||||
|
||||
/* no need to reallocate during incremental event scheduling */
|
||||
reg->alloc = 1;
|
||||
|
||||
/*
|
||||
* need to call x86_get_event_constraint()
|
||||
* to check if associated event has constraints
|
||||
*/
|
||||
c = NULL;
|
||||
} else if (intel_try_alt_er(event, orig_idx)) {
|
||||
raw_spin_unlock_irqrestore(&era->lock, flags);
|
||||
goto again;
|
||||
} else {
|
||||
idx = intel_alt_er(idx);
|
||||
if (idx != reg->idx) {
|
||||
raw_spin_unlock_irqrestore(&era->lock, flags);
|
||||
goto again;
|
||||
}
|
||||
}
|
||||
raw_spin_unlock_irqrestore(&era->lock, flags);
|
||||
|
||||
|
|
@ -1204,11 +1237,14 @@ __intel_shared_reg_put_constraints(struct cpu_hw_events *cpuc,
|
|||
struct er_account *era;
|
||||
|
||||
/*
|
||||
* only put constraint if extra reg was actually
|
||||
* allocated. Also takes care of event which do
|
||||
* not use an extra shared reg
|
||||
* Only put constraint if extra reg was actually allocated. Also takes
|
||||
* care of event which do not use an extra shared reg.
|
||||
*
|
||||
* Also, if this is a fake cpuc we shouldn't touch any event state
|
||||
* (reg->alloc) and we don't care about leaving inconsistent cpuc state
|
||||
* either since it'll be thrown out.
|
||||
*/
|
||||
if (!reg->alloc)
|
||||
if (!reg->alloc || cpuc->is_fake)
|
||||
return;
|
||||
|
||||
era = &cpuc->shared_regs->regs[reg->idx];
|
||||
|
|
@ -1300,15 +1336,9 @@ static void intel_put_event_constraints(struct cpu_hw_events *cpuc,
|
|||
intel_put_shared_regs_event_constraints(cpuc, event);
|
||||
}
|
||||
|
||||
static int intel_pmu_hw_config(struct perf_event *event)
|
||||
static void intel_pebs_aliases_core2(struct perf_event *event)
|
||||
{
|
||||
int ret = x86_pmu_hw_config(event);
|
||||
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (event->attr.precise_ip &&
|
||||
(event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) {
|
||||
if ((event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) {
|
||||
/*
|
||||
* Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P
|
||||
* (0x003c) so that we can use it with PEBS.
|
||||
|
|
@ -1329,10 +1359,48 @@ static int intel_pmu_hw_config(struct perf_event *event)
|
|||
*/
|
||||
u64 alt_config = X86_CONFIG(.event=0xc0, .inv=1, .cmask=16);
|
||||
|
||||
alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK);
|
||||
event->hw.config = alt_config;
|
||||
}
|
||||
}
|
||||
|
||||
static void intel_pebs_aliases_snb(struct perf_event *event)
|
||||
{
|
||||
if ((event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) {
|
||||
/*
|
||||
* Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P
|
||||
* (0x003c) so that we can use it with PEBS.
|
||||
*
|
||||
* The regular CPU_CLK_UNHALTED.THREAD_P event (0x003c) isn't
|
||||
* PEBS capable. However we can use UOPS_RETIRED.ALL
|
||||
* (0x01c2), which is a PEBS capable event, to get the same
|
||||
* count.
|
||||
*
|
||||
* UOPS_RETIRED.ALL counts the number of cycles that retires
|
||||
* CNTMASK micro-ops. By setting CNTMASK to a value (16)
|
||||
* larger than the maximum number of micro-ops that can be
|
||||
* retired per cycle (4) and then inverting the condition, we
|
||||
* count all cycles that retire 16 or less micro-ops, which
|
||||
* is every cycle.
|
||||
*
|
||||
* Thereby we gain a PEBS capable cycle counter.
|
||||
*/
|
||||
u64 alt_config = X86_CONFIG(.event=0xc2, .umask=0x01, .inv=1, .cmask=16);
|
||||
|
||||
alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK);
|
||||
event->hw.config = alt_config;
|
||||
}
|
||||
}
|
||||
|
||||
static int intel_pmu_hw_config(struct perf_event *event)
|
||||
{
|
||||
int ret = x86_pmu_hw_config(event);
|
||||
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (event->attr.precise_ip && x86_pmu.pebs_aliases)
|
||||
x86_pmu.pebs_aliases(event);
|
||||
|
||||
if (intel_pmu_needs_lbr_smpl(event)) {
|
||||
ret = intel_pmu_setup_lbr_filter(event);
|
||||
|
|
@ -1607,6 +1675,7 @@ static __initconst const struct x86_pmu intel_pmu = {
|
|||
.max_period = (1ULL << 31) - 1,
|
||||
.get_event_constraints = intel_get_event_constraints,
|
||||
.put_event_constraints = intel_put_event_constraints,
|
||||
.pebs_aliases = intel_pebs_aliases_core2,
|
||||
|
||||
.format_attrs = intel_arch3_formats_attr,
|
||||
|
||||
|
|
@ -1840,8 +1909,9 @@ __init int intel_pmu_init(void)
|
|||
break;
|
||||
|
||||
case 42: /* SandyBridge */
|
||||
x86_add_quirk(intel_sandybridge_quirk);
|
||||
case 45: /* SandyBridge, "Romely-EP" */
|
||||
x86_add_quirk(intel_sandybridge_quirk);
|
||||
case 58: /* IvyBridge */
|
||||
memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
|
||||
sizeof(hw_cache_event_ids));
|
||||
|
||||
|
|
@ -1849,6 +1919,7 @@ __init int intel_pmu_init(void)
|
|||
|
||||
x86_pmu.event_constraints = intel_snb_event_constraints;
|
||||
x86_pmu.pebs_constraints = intel_snb_pebs_event_constraints;
|
||||
x86_pmu.pebs_aliases = intel_pebs_aliases_snb;
|
||||
x86_pmu.extra_regs = intel_snb_extra_regs;
|
||||
/* all extra regs are per-cpu when HT is on */
|
||||
x86_pmu.er_flags |= ERF_HAS_RSP_1;
|
||||
|
|
|
|||
|
|
@ -400,14 +400,7 @@ struct event_constraint intel_snb_pebs_event_constraints[] = {
|
|||
INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
|
||||
INTEL_EVENT_CONSTRAINT(0xc5, 0xf), /* BR_MISP_RETIRED.* */
|
||||
INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.* */
|
||||
INTEL_UEVENT_CONSTRAINT(0x11d0, 0xf), /* MEM_UOP_RETIRED.STLB_MISS_LOADS */
|
||||
INTEL_UEVENT_CONSTRAINT(0x12d0, 0xf), /* MEM_UOP_RETIRED.STLB_MISS_STORES */
|
||||
INTEL_UEVENT_CONSTRAINT(0x21d0, 0xf), /* MEM_UOP_RETIRED.LOCK_LOADS */
|
||||
INTEL_UEVENT_CONSTRAINT(0x22d0, 0xf), /* MEM_UOP_RETIRED.LOCK_STORES */
|
||||
INTEL_UEVENT_CONSTRAINT(0x41d0, 0xf), /* MEM_UOP_RETIRED.SPLIT_LOADS */
|
||||
INTEL_UEVENT_CONSTRAINT(0x42d0, 0xf), /* MEM_UOP_RETIRED.SPLIT_STORES */
|
||||
INTEL_UEVENT_CONSTRAINT(0x81d0, 0xf), /* MEM_UOP_RETIRED.ANY_LOADS */
|
||||
INTEL_UEVENT_CONSTRAINT(0x82d0, 0xf), /* MEM_UOP_RETIRED.ANY_STORES */
|
||||
INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_UOP_RETIRED.* */
|
||||
INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
|
||||
INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
|
||||
INTEL_UEVENT_CONSTRAINT(0x02d4, 0xf), /* MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS */
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@
|
|||
#include <linux/module.h>
|
||||
|
||||
#include <asm/word-at-a-time.h>
|
||||
#include <linux/sched.h>
|
||||
|
||||
/*
|
||||
* best effort, GUP based copy_from_user() that is NMI-safe
|
||||
|
|
@ -21,6 +22,9 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
|
|||
void *map;
|
||||
int ret;
|
||||
|
||||
if (__range_not_ok(from, n, TASK_SIZE) == 0)
|
||||
return len;
|
||||
|
||||
do {
|
||||
ret = __get_user_pages_fast(addr, 1, 0, &page);
|
||||
if (!ret)
|
||||
|
|
|
|||
|
|
@ -28,7 +28,7 @@
|
|||
# - (66): the last prefix is 0x66
|
||||
# - (F3): the last prefix is 0xF3
|
||||
# - (F2): the last prefix is 0xF2
|
||||
#
|
||||
# - (!F3) : the last prefix is not 0xF3 (including non-last prefix case)
|
||||
|
||||
Table: one byte opcode
|
||||
Referrer:
|
||||
|
|
@ -515,12 +515,12 @@ b4: LFS Gv,Mp
|
|||
b5: LGS Gv,Mp
|
||||
b6: MOVZX Gv,Eb
|
||||
b7: MOVZX Gv,Ew
|
||||
b8: JMPE | POPCNT Gv,Ev (F3)
|
||||
b8: JMPE (!F3) | POPCNT Gv,Ev (F3)
|
||||
b9: Grp10 (1A)
|
||||
ba: Grp8 Ev,Ib (1A)
|
||||
bb: BTC Ev,Gv
|
||||
bc: BSF Gv,Ev | TZCNT Gv,Ev (F3)
|
||||
bd: BSR Gv,Ev | LZCNT Gv,Ev (F3)
|
||||
bc: BSF Gv,Ev (!F3) | TZCNT Gv,Ev (F3)
|
||||
bd: BSR Gv,Ev (!F3) | LZCNT Gv,Ev (F3)
|
||||
be: MOVSX Gv,Eb
|
||||
bf: MOVSX Gv,Ew
|
||||
# 0x0f 0xc0-0xcf
|
||||
|
|
|
|||
|
|
@ -66,9 +66,10 @@ BEGIN {
|
|||
rex_expr = "^REX(\\.[XRWB]+)*"
|
||||
fpu_expr = "^ESC" # TODO
|
||||
|
||||
lprefix1_expr = "\\(66\\)"
|
||||
lprefix1_expr = "\\((66|!F3)\\)"
|
||||
lprefix2_expr = "\\(F3\\)"
|
||||
lprefix3_expr = "\\(F2\\)"
|
||||
lprefix3_expr = "\\((F2|!F3)\\)"
|
||||
lprefix_expr = "\\((66|F2|F3)\\)"
|
||||
max_lprefix = 4
|
||||
|
||||
# All opcodes starting with lower-case 'v' or with (v1) superscript
|
||||
|
|
@ -333,13 +334,16 @@ function convert_operands(count,opnd, i,j,imm,mod)
|
|||
if (match(ext, lprefix1_expr)) {
|
||||
lptable1[idx] = add_flags(lptable1[idx],flags)
|
||||
variant = "INAT_VARIANT"
|
||||
} else if (match(ext, lprefix2_expr)) {
|
||||
}
|
||||
if (match(ext, lprefix2_expr)) {
|
||||
lptable2[idx] = add_flags(lptable2[idx],flags)
|
||||
variant = "INAT_VARIANT"
|
||||
} else if (match(ext, lprefix3_expr)) {
|
||||
}
|
||||
if (match(ext, lprefix3_expr)) {
|
||||
lptable3[idx] = add_flags(lptable3[idx],flags)
|
||||
variant = "INAT_VARIANT"
|
||||
} else {
|
||||
}
|
||||
if (!match(ext, lprefix_expr)){
|
||||
table[idx] = add_flags(table[idx],flags)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -555,6 +555,8 @@ enum perf_event_type {
|
|||
PERF_RECORD_MAX, /* non-ABI */
|
||||
};
|
||||
|
||||
#define PERF_MAX_STACK_DEPTH 127
|
||||
|
||||
enum perf_callchain_context {
|
||||
PERF_CONTEXT_HV = (__u64)-32,
|
||||
PERF_CONTEXT_KERNEL = (__u64)-128,
|
||||
|
|
@ -609,8 +611,6 @@ struct perf_guest_info_callbacks {
|
|||
#include <linux/sysfs.h>
|
||||
#include <asm/local.h>
|
||||
|
||||
#define PERF_MAX_STACK_DEPTH 255
|
||||
|
||||
struct perf_callchain_entry {
|
||||
__u64 nr;
|
||||
__u64 ip[PERF_MAX_STACK_DEPTH];
|
||||
|
|
|
|||
|
|
@ -3181,7 +3181,6 @@ static void perf_event_for_each(struct perf_event *event,
|
|||
event = event->group_leader;
|
||||
|
||||
perf_event_for_each_child(event, func);
|
||||
func(event);
|
||||
list_for_each_entry(sibling, &event->sibling_list, group_entry)
|
||||
perf_event_for_each_child(sibling, func);
|
||||
mutex_unlock(&ctx->mutex);
|
||||
|
|
|
|||
|
|
@ -1,4 +1,6 @@
|
|||
tools/perf
|
||||
tools/scripts
|
||||
tools/lib/traceevent
|
||||
include/linux/const.h
|
||||
include/linux/perf_event.h
|
||||
include/linux/rbtree.h
|
||||
|
|
|
|||
|
|
@ -152,7 +152,7 @@ static int perf_evsel__add_hist_entry(struct perf_evsel *evsel,
|
|||
|
||||
if (symbol_conf.use_callchain) {
|
||||
err = callchain_append(he->callchain,
|
||||
&evsel->hists.callchain_cursor,
|
||||
&callchain_cursor,
|
||||
sample->period);
|
||||
if (err)
|
||||
return err;
|
||||
|
|
@ -162,7 +162,7 @@ static int perf_evsel__add_hist_entry(struct perf_evsel *evsel,
|
|||
* so we don't allocated the extra space needed because the stdio
|
||||
* code will not use it.
|
||||
*/
|
||||
if (al->sym != NULL && use_browser > 0) {
|
||||
if (he->ms.sym != NULL && use_browser > 0) {
|
||||
struct annotation *notes = symbol__annotation(he->ms.sym);
|
||||
|
||||
assert(evsel != NULL);
|
||||
|
|
|
|||
|
|
@ -1129,7 +1129,7 @@ static int add_default_attributes(void)
|
|||
return 0;
|
||||
|
||||
if (!evsel_list->nr_entries) {
|
||||
if (perf_evlist__add_attrs_array(evsel_list, default_attrs) < 0)
|
||||
if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0)
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
|
@ -1139,21 +1139,21 @@ static int add_default_attributes(void)
|
|||
return 0;
|
||||
|
||||
/* Append detailed run extra attributes: */
|
||||
if (perf_evlist__add_attrs_array(evsel_list, detailed_attrs) < 0)
|
||||
if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0)
|
||||
return -1;
|
||||
|
||||
if (detailed_run < 2)
|
||||
return 0;
|
||||
|
||||
/* Append very detailed run extra attributes: */
|
||||
if (perf_evlist__add_attrs_array(evsel_list, very_detailed_attrs) < 0)
|
||||
if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0)
|
||||
return -1;
|
||||
|
||||
if (detailed_run < 3)
|
||||
return 0;
|
||||
|
||||
/* Append very, very detailed run extra attributes: */
|
||||
return perf_evlist__add_attrs_array(evsel_list, very_very_detailed_attrs);
|
||||
return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs);
|
||||
}
|
||||
|
||||
int cmd_stat(int argc, const char **argv, const char *prefix __used)
|
||||
|
|
|
|||
|
|
@ -787,7 +787,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
|
|||
}
|
||||
|
||||
if (symbol_conf.use_callchain) {
|
||||
err = callchain_append(he->callchain, &evsel->hists.callchain_cursor,
|
||||
err = callchain_append(he->callchain, &callchain_cursor,
|
||||
sample->period);
|
||||
if (err)
|
||||
return;
|
||||
|
|
|
|||
|
|
@ -409,14 +409,15 @@ Counters can be enabled and disabled in two ways: via ioctl and via
|
|||
prctl. When a counter is disabled, it doesn't count or generate
|
||||
events but does continue to exist and maintain its count value.
|
||||
|
||||
An individual counter or counter group can be enabled with
|
||||
An individual counter can be enabled with
|
||||
|
||||
ioctl(fd, PERF_EVENT_IOC_ENABLE);
|
||||
ioctl(fd, PERF_EVENT_IOC_ENABLE, 0);
|
||||
|
||||
or disabled with
|
||||
|
||||
ioctl(fd, PERF_EVENT_IOC_DISABLE);
|
||||
ioctl(fd, PERF_EVENT_IOC_DISABLE, 0);
|
||||
|
||||
For a counter group, pass PERF_IOC_FLAG_GROUP as the third argument.
|
||||
Enabling or disabling the leader of a group enables or disables the
|
||||
whole group; that is, while the group leader is disabled, none of the
|
||||
counters in the group will count. Enabling or disabling a member of a
|
||||
|
|
|
|||
|
|
@ -668,7 +668,7 @@ static int annotate_browser__run(struct annotate_browser *browser, int evidx,
|
|||
"q/ESC/CTRL+C Exit\n\n"
|
||||
"-> Go to target\n"
|
||||
"<- Exit\n"
|
||||
"h Cycle thru hottest instructions\n"
|
||||
"H Cycle thru hottest instructions\n"
|
||||
"j Toggle showing jump to target arrows\n"
|
||||
"J Toggle showing number of jump sources on targets\n"
|
||||
"n Search next string\n"
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ LF='
|
|||
# First check if there is a .git to get the version from git describe
|
||||
# otherwise try to get the version from the kernel makefile
|
||||
if test -d ../../.git -o -f ../../.git &&
|
||||
VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
|
||||
VN=$(git describe --match 'v[0-9].[0-9]*' --abbrev=4 HEAD 2>/dev/null) &&
|
||||
case "$VN" in
|
||||
*$LF*) (exit 1) ;;
|
||||
v[0-9]*)
|
||||
|
|
|
|||
|
|
@ -18,6 +18,8 @@
|
|||
#include "util.h"
|
||||
#include "callchain.h"
|
||||
|
||||
__thread struct callchain_cursor callchain_cursor;
|
||||
|
||||
bool ip_callchain__valid(struct ip_callchain *chain,
|
||||
const union perf_event *event)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -76,6 +76,8 @@ struct callchain_cursor {
|
|||
struct callchain_cursor_node *curr;
|
||||
};
|
||||
|
||||
extern __thread struct callchain_cursor callchain_cursor;
|
||||
|
||||
static inline void callchain_init(struct callchain_root *root)
|
||||
{
|
||||
INIT_LIST_HEAD(&root->node.siblings);
|
||||
|
|
|
|||
|
|
@ -159,6 +159,17 @@ int perf_evlist__add_attrs(struct perf_evlist *evlist,
|
|||
return -1;
|
||||
}
|
||||
|
||||
int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
|
||||
struct perf_event_attr *attrs, size_t nr_attrs)
|
||||
{
|
||||
size_t i;
|
||||
|
||||
for (i = 0; i < nr_attrs; i++)
|
||||
event_attr_init(attrs + i);
|
||||
|
||||
return perf_evlist__add_attrs(evlist, attrs, nr_attrs);
|
||||
}
|
||||
|
||||
static int trace_event__id(const char *evname)
|
||||
{
|
||||
char *filename, *colon;
|
||||
|
|
@ -263,7 +274,8 @@ void perf_evlist__disable(struct perf_evlist *evlist)
|
|||
for (cpu = 0; cpu < evlist->cpus->nr; cpu++) {
|
||||
list_for_each_entry(pos, &evlist->entries, node) {
|
||||
for (thread = 0; thread < evlist->threads->nr; thread++)
|
||||
ioctl(FD(pos, cpu, thread), PERF_EVENT_IOC_DISABLE);
|
||||
ioctl(FD(pos, cpu, thread),
|
||||
PERF_EVENT_IOC_DISABLE, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -276,7 +288,8 @@ void perf_evlist__enable(struct perf_evlist *evlist)
|
|||
for (cpu = 0; cpu < evlist->cpus->nr; cpu++) {
|
||||
list_for_each_entry(pos, &evlist->entries, node) {
|
||||
for (thread = 0; thread < evlist->threads->nr; thread++)
|
||||
ioctl(FD(pos, cpu, thread), PERF_EVENT_IOC_ENABLE);
|
||||
ioctl(FD(pos, cpu, thread),
|
||||
PERF_EVENT_IOC_ENABLE, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -54,6 +54,8 @@ void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
|
|||
int perf_evlist__add_default(struct perf_evlist *evlist);
|
||||
int perf_evlist__add_attrs(struct perf_evlist *evlist,
|
||||
struct perf_event_attr *attrs, size_t nr_attrs);
|
||||
int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
|
||||
struct perf_event_attr *attrs, size_t nr_attrs);
|
||||
int perf_evlist__add_tracepoints(struct perf_evlist *evlist,
|
||||
const char *tracepoints[], size_t nr_tracepoints);
|
||||
int perf_evlist__set_tracepoints_handlers(struct perf_evlist *evlist,
|
||||
|
|
@ -62,6 +64,8 @@ int perf_evlist__set_tracepoints_handlers(struct perf_evlist *evlist,
|
|||
|
||||
#define perf_evlist__add_attrs_array(evlist, array) \
|
||||
perf_evlist__add_attrs(evlist, array, ARRAY_SIZE(array))
|
||||
#define perf_evlist__add_default_attrs(evlist, array) \
|
||||
__perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
|
||||
|
||||
#define perf_evlist__add_tracepoints_array(evlist, array) \
|
||||
perf_evlist__add_tracepoints(evlist, array, ARRAY_SIZE(array))
|
||||
|
|
|
|||
|
|
@ -494,16 +494,24 @@ int perf_evsel__open_per_thread(struct perf_evsel *evsel,
|
|||
}
|
||||
|
||||
static int perf_event__parse_id_sample(const union perf_event *event, u64 type,
|
||||
struct perf_sample *sample)
|
||||
struct perf_sample *sample,
|
||||
bool swapped)
|
||||
{
|
||||
const u64 *array = event->sample.array;
|
||||
union u64_swap u;
|
||||
|
||||
array += ((event->header.size -
|
||||
sizeof(event->header)) / sizeof(u64)) - 1;
|
||||
|
||||
if (type & PERF_SAMPLE_CPU) {
|
||||
u32 *p = (u32 *)array;
|
||||
sample->cpu = *p;
|
||||
u.val64 = *array;
|
||||
if (swapped) {
|
||||
/* undo swap of u64, then swap on individual u32s */
|
||||
u.val64 = bswap_64(u.val64);
|
||||
u.val32[0] = bswap_32(u.val32[0]);
|
||||
}
|
||||
|
||||
sample->cpu = u.val32[0];
|
||||
array--;
|
||||
}
|
||||
|
||||
|
|
@ -523,9 +531,16 @@ static int perf_event__parse_id_sample(const union perf_event *event, u64 type,
|
|||
}
|
||||
|
||||
if (type & PERF_SAMPLE_TID) {
|
||||
u32 *p = (u32 *)array;
|
||||
sample->pid = p[0];
|
||||
sample->tid = p[1];
|
||||
u.val64 = *array;
|
||||
if (swapped) {
|
||||
/* undo swap of u64, then swap on individual u32s */
|
||||
u.val64 = bswap_64(u.val64);
|
||||
u.val32[0] = bswap_32(u.val32[0]);
|
||||
u.val32[1] = bswap_32(u.val32[1]);
|
||||
}
|
||||
|
||||
sample->pid = u.val32[0];
|
||||
sample->tid = u.val32[1];
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
|
@ -562,7 +577,7 @@ int perf_event__parse_sample(const union perf_event *event, u64 type,
|
|||
if (event->header.type != PERF_RECORD_SAMPLE) {
|
||||
if (!sample_id_all)
|
||||
return 0;
|
||||
return perf_event__parse_id_sample(event, type, data);
|
||||
return perf_event__parse_id_sample(event, type, data, swapped);
|
||||
}
|
||||
|
||||
array = event->sample.array;
|
||||
|
|
|
|||
|
|
@ -378,7 +378,7 @@ void hist_entry__free(struct hist_entry *he)
|
|||
* collapse the histogram
|
||||
*/
|
||||
|
||||
static bool hists__collapse_insert_entry(struct hists *hists,
|
||||
static bool hists__collapse_insert_entry(struct hists *hists __used,
|
||||
struct rb_root *root,
|
||||
struct hist_entry *he)
|
||||
{
|
||||
|
|
@ -397,8 +397,9 @@ static bool hists__collapse_insert_entry(struct hists *hists,
|
|||
iter->period += he->period;
|
||||
iter->nr_events += he->nr_events;
|
||||
if (symbol_conf.use_callchain) {
|
||||
callchain_cursor_reset(&hists->callchain_cursor);
|
||||
callchain_merge(&hists->callchain_cursor, iter->callchain,
|
||||
callchain_cursor_reset(&callchain_cursor);
|
||||
callchain_merge(&callchain_cursor,
|
||||
iter->callchain,
|
||||
he->callchain);
|
||||
}
|
||||
hist_entry__free(he);
|
||||
|
|
|
|||
|
|
@ -67,8 +67,6 @@ struct hists {
|
|||
struct events_stats stats;
|
||||
u64 event_stream;
|
||||
u16 col_len[HISTC_NR_COLS];
|
||||
/* Best would be to reuse the session callchain cursor */
|
||||
struct callchain_cursor callchain_cursor;
|
||||
};
|
||||
|
||||
struct hist_entry *__hists__add_entry(struct hists *self,
|
||||
|
|
|
|||
|
|
@ -57,6 +57,10 @@ void setup_pager(void)
|
|||
}
|
||||
if (!pager)
|
||||
pager = getenv("PAGER");
|
||||
if (!pager) {
|
||||
if (!access("/usr/bin/pager", X_OK))
|
||||
pager = "/usr/bin/pager";
|
||||
}
|
||||
if (!pager)
|
||||
pager = "less";
|
||||
else if (!*pager || !strcmp(pager, "cat"))
|
||||
|
|
|
|||
|
|
@ -2164,16 +2164,12 @@ int del_perf_probe_events(struct strlist *dellist)
|
|||
|
||||
error:
|
||||
if (kfd >= 0) {
|
||||
if (namelist)
|
||||
strlist__delete(namelist);
|
||||
|
||||
strlist__delete(namelist);
|
||||
close(kfd);
|
||||
}
|
||||
|
||||
if (ufd >= 0) {
|
||||
if (unamelist)
|
||||
strlist__delete(unamelist);
|
||||
|
||||
strlist__delete(unamelist);
|
||||
close(ufd);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -288,7 +288,8 @@ struct branch_info *machine__resolve_bstack(struct machine *self,
|
|||
return bi;
|
||||
}
|
||||
|
||||
int machine__resolve_callchain(struct machine *self, struct perf_evsel *evsel,
|
||||
int machine__resolve_callchain(struct machine *self,
|
||||
struct perf_evsel *evsel __used,
|
||||
struct thread *thread,
|
||||
struct ip_callchain *chain,
|
||||
struct symbol **parent)
|
||||
|
|
@ -297,7 +298,12 @@ int machine__resolve_callchain(struct machine *self, struct perf_evsel *evsel,
|
|||
unsigned int i;
|
||||
int err;
|
||||
|
||||
callchain_cursor_reset(&evsel->hists.callchain_cursor);
|
||||
callchain_cursor_reset(&callchain_cursor);
|
||||
|
||||
if (chain->nr > PERF_MAX_STACK_DEPTH) {
|
||||
pr_warning("corrupted callchain. skipping...\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
for (i = 0; i < chain->nr; i++) {
|
||||
u64 ip;
|
||||
|
|
@ -317,7 +323,14 @@ int machine__resolve_callchain(struct machine *self, struct perf_evsel *evsel,
|
|||
case PERF_CONTEXT_USER:
|
||||
cpumode = PERF_RECORD_MISC_USER; break;
|
||||
default:
|
||||
break;
|
||||
pr_debug("invalid callchain context: "
|
||||
"%"PRId64"\n", (s64) ip);
|
||||
/*
|
||||
* It seems the callchain is corrupted.
|
||||
* Discard all.
|
||||
*/
|
||||
callchain_cursor_reset(&callchain_cursor);
|
||||
return 0;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
|
@ -333,7 +346,7 @@ int machine__resolve_callchain(struct machine *self, struct perf_evsel *evsel,
|
|||
break;
|
||||
}
|
||||
|
||||
err = callchain_cursor_append(&evsel->hists.callchain_cursor,
|
||||
err = callchain_cursor_append(&callchain_cursor,
|
||||
ip, al.map, al.sym);
|
||||
if (err)
|
||||
return err;
|
||||
|
|
@ -441,37 +454,65 @@ void mem_bswap_64(void *src, int byte_size)
|
|||
}
|
||||
}
|
||||
|
||||
static void perf_event__all64_swap(union perf_event *event)
|
||||
static void swap_sample_id_all(union perf_event *event, void *data)
|
||||
{
|
||||
void *end = (void *) event + event->header.size;
|
||||
int size = end - data;
|
||||
|
||||
BUG_ON(size % sizeof(u64));
|
||||
mem_bswap_64(data, size);
|
||||
}
|
||||
|
||||
static void perf_event__all64_swap(union perf_event *event,
|
||||
bool sample_id_all __used)
|
||||
{
|
||||
struct perf_event_header *hdr = &event->header;
|
||||
mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr));
|
||||
}
|
||||
|
||||
static void perf_event__comm_swap(union perf_event *event)
|
||||
static void perf_event__comm_swap(union perf_event *event, bool sample_id_all)
|
||||
{
|
||||
event->comm.pid = bswap_32(event->comm.pid);
|
||||
event->comm.tid = bswap_32(event->comm.tid);
|
||||
|
||||
if (sample_id_all) {
|
||||
void *data = &event->comm.comm;
|
||||
|
||||
data += ALIGN(strlen(data) + 1, sizeof(u64));
|
||||
swap_sample_id_all(event, data);
|
||||
}
|
||||
}
|
||||
|
||||
static void perf_event__mmap_swap(union perf_event *event)
|
||||
static void perf_event__mmap_swap(union perf_event *event,
|
||||
bool sample_id_all)
|
||||
{
|
||||
event->mmap.pid = bswap_32(event->mmap.pid);
|
||||
event->mmap.tid = bswap_32(event->mmap.tid);
|
||||
event->mmap.start = bswap_64(event->mmap.start);
|
||||
event->mmap.len = bswap_64(event->mmap.len);
|
||||
event->mmap.pgoff = bswap_64(event->mmap.pgoff);
|
||||
|
||||
if (sample_id_all) {
|
||||
void *data = &event->mmap.filename;
|
||||
|
||||
data += ALIGN(strlen(data) + 1, sizeof(u64));
|
||||
swap_sample_id_all(event, data);
|
||||
}
|
||||
}
|
||||
|
||||
static void perf_event__task_swap(union perf_event *event)
|
||||
static void perf_event__task_swap(union perf_event *event, bool sample_id_all)
|
||||
{
|
||||
event->fork.pid = bswap_32(event->fork.pid);
|
||||
event->fork.tid = bswap_32(event->fork.tid);
|
||||
event->fork.ppid = bswap_32(event->fork.ppid);
|
||||
event->fork.ptid = bswap_32(event->fork.ptid);
|
||||
event->fork.time = bswap_64(event->fork.time);
|
||||
|
||||
if (sample_id_all)
|
||||
swap_sample_id_all(event, &event->fork + 1);
|
||||
}
|
||||
|
||||
static void perf_event__read_swap(union perf_event *event)
|
||||
static void perf_event__read_swap(union perf_event *event, bool sample_id_all)
|
||||
{
|
||||
event->read.pid = bswap_32(event->read.pid);
|
||||
event->read.tid = bswap_32(event->read.tid);
|
||||
|
|
@ -479,6 +520,9 @@ static void perf_event__read_swap(union perf_event *event)
|
|||
event->read.time_enabled = bswap_64(event->read.time_enabled);
|
||||
event->read.time_running = bswap_64(event->read.time_running);
|
||||
event->read.id = bswap_64(event->read.id);
|
||||
|
||||
if (sample_id_all)
|
||||
swap_sample_id_all(event, &event->read + 1);
|
||||
}
|
||||
|
||||
static u8 revbyte(u8 b)
|
||||
|
|
@ -530,7 +574,8 @@ void perf_event__attr_swap(struct perf_event_attr *attr)
|
|||
swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64));
|
||||
}
|
||||
|
||||
static void perf_event__hdr_attr_swap(union perf_event *event)
|
||||
static void perf_event__hdr_attr_swap(union perf_event *event,
|
||||
bool sample_id_all __used)
|
||||
{
|
||||
size_t size;
|
||||
|
||||
|
|
@ -541,18 +586,21 @@ static void perf_event__hdr_attr_swap(union perf_event *event)
|
|||
mem_bswap_64(event->attr.id, size);
|
||||
}
|
||||
|
||||
static void perf_event__event_type_swap(union perf_event *event)
|
||||
static void perf_event__event_type_swap(union perf_event *event,
|
||||
bool sample_id_all __used)
|
||||
{
|
||||
event->event_type.event_type.event_id =
|
||||
bswap_64(event->event_type.event_type.event_id);
|
||||
}
|
||||
|
||||
static void perf_event__tracing_data_swap(union perf_event *event)
|
||||
static void perf_event__tracing_data_swap(union perf_event *event,
|
||||
bool sample_id_all __used)
|
||||
{
|
||||
event->tracing_data.size = bswap_32(event->tracing_data.size);
|
||||
}
|
||||
|
||||
typedef void (*perf_event__swap_op)(union perf_event *event);
|
||||
typedef void (*perf_event__swap_op)(union perf_event *event,
|
||||
bool sample_id_all);
|
||||
|
||||
static perf_event__swap_op perf_event__swap_ops[] = {
|
||||
[PERF_RECORD_MMAP] = perf_event__mmap_swap,
|
||||
|
|
@ -986,6 +1034,15 @@ static int perf_session__process_user_event(struct perf_session *session, union
|
|||
}
|
||||
}
|
||||
|
||||
static void event_swap(union perf_event *event, bool sample_id_all)
|
||||
{
|
||||
perf_event__swap_op swap;
|
||||
|
||||
swap = perf_event__swap_ops[event->header.type];
|
||||
if (swap)
|
||||
swap(event, sample_id_all);
|
||||
}
|
||||
|
||||
static int perf_session__process_event(struct perf_session *session,
|
||||
union perf_event *event,
|
||||
struct perf_tool *tool,
|
||||
|
|
@ -994,9 +1051,8 @@ static int perf_session__process_event(struct perf_session *session,
|
|||
struct perf_sample sample;
|
||||
int ret;
|
||||
|
||||
if (session->header.needs_swap &&
|
||||
perf_event__swap_ops[event->header.type])
|
||||
perf_event__swap_ops[event->header.type](event);
|
||||
if (session->header.needs_swap)
|
||||
event_swap(event, session->sample_id_all);
|
||||
|
||||
if (event->header.type >= PERF_RECORD_HEADER_MAX)
|
||||
return -EINVAL;
|
||||
|
|
@ -1428,7 +1484,6 @@ void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
|
|||
int print_sym, int print_dso, int print_symoffset)
|
||||
{
|
||||
struct addr_location al;
|
||||
struct callchain_cursor *cursor = &evsel->hists.callchain_cursor;
|
||||
struct callchain_cursor_node *node;
|
||||
|
||||
if (perf_event__preprocess_sample(event, machine, &al, sample,
|
||||
|
|
@ -1446,10 +1501,10 @@ void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
|
|||
error("Failed to resolve callchain. Skipping\n");
|
||||
return;
|
||||
}
|
||||
callchain_cursor_commit(cursor);
|
||||
callchain_cursor_commit(&callchain_cursor);
|
||||
|
||||
while (1) {
|
||||
node = callchain_cursor_current(cursor);
|
||||
node = callchain_cursor_current(&callchain_cursor);
|
||||
if (!node)
|
||||
break;
|
||||
|
||||
|
|
@ -1460,12 +1515,12 @@ void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
|
|||
}
|
||||
if (print_dso) {
|
||||
printf(" (");
|
||||
map__fprintf_dsoname(al.map, stdout);
|
||||
map__fprintf_dsoname(node->map, stdout);
|
||||
printf(")");
|
||||
}
|
||||
printf("\n");
|
||||
|
||||
callchain_cursor_advance(cursor);
|
||||
callchain_cursor_advance(&callchain_cursor);
|
||||
}
|
||||
|
||||
} else {
|
||||
|
|
|
|||
|
|
@ -323,6 +323,7 @@ struct dso *dso__new(const char *name)
|
|||
dso->sorted_by_name = 0;
|
||||
dso->has_build_id = 0;
|
||||
dso->kernel = DSO_TYPE_USER;
|
||||
dso->needs_swap = DSO_SWAP__UNSET;
|
||||
INIT_LIST_HEAD(&dso->node);
|
||||
}
|
||||
|
||||
|
|
@ -1156,6 +1157,33 @@ static size_t elf_addr_to_index(Elf *elf, GElf_Addr addr)
|
|||
return -1;
|
||||
}
|
||||
|
||||
static int dso__swap_init(struct dso *dso, unsigned char eidata)
|
||||
{
|
||||
static unsigned int const endian = 1;
|
||||
|
||||
dso->needs_swap = DSO_SWAP__NO;
|
||||
|
||||
switch (eidata) {
|
||||
case ELFDATA2LSB:
|
||||
/* We are big endian, DSO is little endian. */
|
||||
if (*(unsigned char const *)&endian != 1)
|
||||
dso->needs_swap = DSO_SWAP__YES;
|
||||
break;
|
||||
|
||||
case ELFDATA2MSB:
|
||||
/* We are little endian, DSO is big endian. */
|
||||
if (*(unsigned char const *)&endian != 0)
|
||||
dso->needs_swap = DSO_SWAP__YES;
|
||||
break;
|
||||
|
||||
default:
|
||||
pr_err("unrecognized DSO data encoding %d\n", eidata);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dso__load_sym(struct dso *dso, struct map *map, const char *name,
|
||||
int fd, symbol_filter_t filter, int kmodule,
|
||||
int want_symtab)
|
||||
|
|
@ -1187,6 +1215,9 @@ static int dso__load_sym(struct dso *dso, struct map *map, const char *name,
|
|||
goto out_elf_end;
|
||||
}
|
||||
|
||||
if (dso__swap_init(dso, ehdr.e_ident[EI_DATA]))
|
||||
goto out_elf_end;
|
||||
|
||||
/* Always reject images with a mismatched build-id: */
|
||||
if (dso->has_build_id) {
|
||||
u8 build_id[BUILD_ID_SIZE];
|
||||
|
|
@ -1272,7 +1303,7 @@ static int dso__load_sym(struct dso *dso, struct map *map, const char *name,
|
|||
if (opdsec && sym.st_shndx == opdidx) {
|
||||
u32 offset = sym.st_value - opdshdr.sh_addr;
|
||||
u64 *opd = opddata->d_buf + offset;
|
||||
sym.st_value = *opd;
|
||||
sym.st_value = DSO__SWAP(dso, u64, *opd);
|
||||
sym.st_shndx = elf_addr_to_index(elf, sym.st_value);
|
||||
}
|
||||
|
||||
|
|
@ -2786,8 +2817,11 @@ int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
|
|||
|
||||
struct map *dso__new_map(const char *name)
|
||||
{
|
||||
struct map *map = NULL;
|
||||
struct dso *dso = dso__new(name);
|
||||
struct map *map = map__new2(0, dso, MAP__FUNCTION);
|
||||
|
||||
if (dso)
|
||||
map = map__new2(0, dso, MAP__FUNCTION);
|
||||
|
||||
return map;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -9,6 +9,7 @@
|
|||
#include <linux/list.h>
|
||||
#include <linux/rbtree.h>
|
||||
#include <stdio.h>
|
||||
#include <byteswap.h>
|
||||
|
||||
#ifdef HAVE_CPLUS_DEMANGLE
|
||||
extern char *cplus_demangle(const char *, int);
|
||||
|
|
@ -160,11 +161,18 @@ enum dso_kernel_type {
|
|||
DSO_TYPE_GUEST_KERNEL
|
||||
};
|
||||
|
||||
enum dso_swap_type {
|
||||
DSO_SWAP__UNSET,
|
||||
DSO_SWAP__NO,
|
||||
DSO_SWAP__YES,
|
||||
};
|
||||
|
||||
struct dso {
|
||||
struct list_head node;
|
||||
struct rb_root symbols[MAP__NR_TYPES];
|
||||
struct rb_root symbol_names[MAP__NR_TYPES];
|
||||
enum dso_kernel_type kernel;
|
||||
enum dso_swap_type needs_swap;
|
||||
u8 adjust_symbols:1;
|
||||
u8 has_build_id:1;
|
||||
u8 hit:1;
|
||||
|
|
@ -182,6 +190,28 @@ struct dso {
|
|||
char name[0];
|
||||
};
|
||||
|
||||
#define DSO__SWAP(dso, type, val) \
|
||||
({ \
|
||||
type ____r = val; \
|
||||
BUG_ON(dso->needs_swap == DSO_SWAP__UNSET); \
|
||||
if (dso->needs_swap == DSO_SWAP__YES) { \
|
||||
switch (sizeof(____r)) { \
|
||||
case 2: \
|
||||
____r = bswap_16(val); \
|
||||
break; \
|
||||
case 4: \
|
||||
____r = bswap_32(val); \
|
||||
break; \
|
||||
case 8: \
|
||||
____r = bswap_64(val); \
|
||||
break; \
|
||||
default: \
|
||||
BUG_ON(1); \
|
||||
} \
|
||||
} \
|
||||
____r; \
|
||||
})
|
||||
|
||||
struct dso *dso__new(const char *name);
|
||||
void dso__delete(struct dso *dso);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue