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Subject[GIT pull] perf updates for 4.17
Linus,

please pull the latest perf-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-urgent-for-linus

A rather large set of perf updates:

- Show only failing syscalls with 'perf trace --failure' (Arnaldo Carvalho de Melo)

e.g: See what 'openat' syscalls are failing:

# perf trace --failure -e openat
762.323 ( 0.007 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video2) = -1 ENOENT No such file or directory
<SNIP N /dev/videoN open attempts... sigh, where is that improvised camera lid?!? >
790.228 ( 0.008 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video63) = -1 ENOENT No such file or directory
^C#

- Show information about the event (freq, nr_samples, total period/nr_events) in
the annotate --tui and --stdio2 'perf annotate' output, similar to the
first line in the 'perf report --tui', but just for the samples for a
the annotated symbol (Arnaldo Carvalho de Melo)

- Introduce 'perf version --build-options' to show what features were
linked, aliased as well as a shorter 'perf -vv' (Jin Yao)

- Add a "dso_size" sort order (Kim Phillips)

- Remove redundant ')' in the tracepoint output in 'perf trace' (Changbin Du)

- Synchronize x86's cpufeatures.h, no effect on toolss (Arnaldo Carvalho de Melo)

- Show group details on the title line in the annotate browser
and 'perf annotate --stdio2' output, so that the per-event
columns can have headers (Arnaldo Carvalho de Melo)

- Fixup vertical line separating metrics from instructions and
cleaning unused lines at the bottom, both in the annotate TUI
browser (Arnaldo Carvalho de Melo)

- Remove duplicated 'samples' in lost samples warning in
'perf report' (Arnaldo Carvalho de Melo)

- Synchronize i915_drm.h, silencing the perf build process,
automagically adding support for the new DRM_I915_QUERY
ioctl (Arnaldo Carvalho de Melo)

- Make auxtrace_queues__add_buffer() allocate struct buffer,
from a patchkit already applied (Adrian Hunter)

. Fix the --stdio2/TUI annotate output to include group details,
be it for a recorded '{a,b,f}' explicit event group or when
forcing group display using 'perf report --group' for a set of
events not recorded as a group (Arnaldo Carvalho de Melo)

. Fix display artifacts in the ui browser (base class for the
annotate and main report/top TUI browser) related to the extra
title lines work (Arnaldo Carvalho de Melo)

. perf auxtrace refactorings, leftovers from a previously partially
processed patchset (Adrian Hunter)

. Fix the builtin clang build (Sandipan Das, Arnaldo Carvalho de Melo)

- Synchronize i915_drm.h, silencing a perf build warning and
in the process automagically adding support for a new ioctl
command (Arnaldo Carvalho de Melo)

- Fix various initialization issues

- Prevent creating [ku]probes for not CAP_SYS_ADMIN users

- Fix a strncpy issue in uprobe tracing

Thanks,

tglx

------------------>
Adrian Hunter (2):
perf auxtrace: Make auxtrace_queues__add_buffer() allocate struct buffer
perf auxtrace: Make auxtrace_queues__add_buffer() do CPU filtering

Arnaldo Carvalho de Melo (17):
tools headers: Synchronize x86's cpufeatures.h
perf trace: Show only failing syscalls
perf hists browser: Rename perf_evsel_browser_title to a more descriptive name
perf hists: Introduce hists__scnprint_title()
perf hists: Move hists__scnprintf_title() away from the TUI code
perf ui browser: Move the extra title lines from the hists browser
perf annotate: Introduce annotation__scnprintf_samples_period() method
perf annotate browser: Show extra title line with event information
perf annotate stdio2: Print more descriptive event information header
perf annotate: Show group details on the title line
perf annotate browser: Fixup vertical line separating metrics from instructions
perf ui browser: Fixup cleaning unused lines at the bottom
perf report: Remove duplicated 'samples' in lost samples warning
tools headers uapi: Synchronize i915_drm.h
perf hists browser: Show extra_title_lines in the 'D' debug hotkey
perf hists browser: Remove leftover from row returned from refresh
perf tools: No need to include namespaces.h in util.h

Changbin Du (1):
perf trace: Remove redundant ')'

Jin Yao (5):
perf config: Add some new -DHAVE_XXX to CFLAGS
perf config: Rename to HAVE_DWARF_GETLOCATIONS_SUPPORT
perf version: Print the compiled-in status of libraries
perf tools: Add 'perf -vv' as an alias to 'perf version --build-options'
perf version: Add man page

Jiri Olsa (1):
tools include: Add config.h header file

Kim Phillips (1):
perf tools: Add a "dso_size" sort order

Masami Hiramatsu (2):
perf/core: Fix perf_kprobe_init()
tracing/uprobe_event: Fix strncpy corner case

Prashant Bhole (1):
perf/core: Fix use-after-free in uprobe_perf_close()

Sandipan Das (3):
perf tools: Fix perf builds with clang support
perf clang: Add support for recent clang versions
perf tests clang: Fix function name for clang IR test

Song Liu (2):
perf/core: Fix perf_uprobe_init()
perf/core: Need CAP_SYS_ADMIN to create k/uprobe with perf_event_open()

Stephane Eranian (1):
perf/x86/intel: Move regs->flags EXACT bit init


arch/x86/events/intel/ds.c | 34 +++++---
kernel/events/core.c | 14 +++
kernel/trace/trace_event_perf.c | 4 +
kernel/trace/trace_uprobe.c | 2 +
tools/arch/x86/include/asm/cpufeatures.h | 2 +
tools/include/tools/config.h | 34 ++++++++
tools/include/uapi/drm/i915_drm.h | 112 +++++++++++++++++++++++-
tools/perf/Documentation/perf-report.txt | 1 +
tools/perf/Documentation/perf-trace.txt | 3 +
tools/perf/Documentation/perf-version.txt | 24 ++++++
tools/perf/Makefile.config | 8 +-
tools/perf/Makefile.perf | 3 +-
tools/perf/builtin-trace.c | 11 ++-
tools/perf/builtin-version.c | 82 +++++++++++++++++-
tools/perf/perf.c | 6 ++
tools/perf/perf.h | 1 +
tools/perf/ui/browser.c | 12 ++-
tools/perf/ui/browser.h | 2 +
tools/perf/ui/browsers/annotate.c | 33 +++++--
tools/perf/ui/browsers/hists.c | 138 +++++++-----------------------
tools/perf/util/annotate.c | 51 +++++++++--
tools/perf/util/annotate.h | 12 +++
tools/perf/util/auxtrace.c | 72 +++++++---------
tools/perf/util/c++/clang-test.cpp | 2 +-
tools/perf/util/c++/clang.cpp | 11 ++-
tools/perf/util/dwarf-aux.c | 2 +-
tools/perf/util/hist.c | 81 ++++++++++++++++++
tools/perf/util/hist.h | 7 ++
tools/perf/util/map.h | 4 +
tools/perf/util/session.c | 2 +-
tools/perf/util/sort.c | 41 +++++++++
tools/perf/util/sort.h | 1 +
tools/perf/util/util.h | 4 +-
33 files changed, 629 insertions(+), 187 deletions(-)
create mode 100644 tools/include/tools/config.h
create mode 100644 tools/perf/Documentation/perf-version.txt

diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index da6780122786..8a10a045b57b 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -1153,7 +1153,6 @@ static void setup_pebs_sample_data(struct perf_event *event,
if (pebs == NULL)
return;

- regs->flags &= ~PERF_EFLAGS_EXACT;
sample_type = event->attr.sample_type;
dsrc = sample_type & PERF_SAMPLE_DATA_SRC;

@@ -1197,7 +1196,13 @@ static void setup_pebs_sample_data(struct perf_event *event,
* and PMI.
*/
*regs = *iregs;
- regs->flags = pebs->flags;
+
+ /*
+ * Initialize regs_>flags from PEBS,
+ * Clear exact bit (which uses x86 EFLAGS Reserved bit 3),
+ * i.e., do not rely on it being zero:
+ */
+ regs->flags = pebs->flags & ~PERF_EFLAGS_EXACT;

if (sample_type & PERF_SAMPLE_REGS_INTR) {
regs->ax = pebs->ax;
@@ -1217,10 +1222,6 @@ static void setup_pebs_sample_data(struct perf_event *event,
regs->sp = pebs->sp;
}

- /*
- * Preserve PERF_EFLAGS_VM from set_linear_ip().
- */
- regs->flags = pebs->flags | (regs->flags & PERF_EFLAGS_VM);
#ifndef CONFIG_X86_32
regs->r8 = pebs->r8;
regs->r9 = pebs->r9;
@@ -1234,20 +1235,33 @@ static void setup_pebs_sample_data(struct perf_event *event,
}

if (event->attr.precise_ip > 1) {
- /* Haswell and later have the eventing IP, so use it: */
+ /*
+ * Haswell and later processors have an 'eventing IP'
+ * (real IP) which fixes the off-by-1 skid in hardware.
+ * Use it when precise_ip >= 2 :
+ */
if (x86_pmu.intel_cap.pebs_format >= 2) {
set_linear_ip(regs, pebs->real_ip);
regs->flags |= PERF_EFLAGS_EXACT;
} else {
- /* Otherwise use PEBS off-by-1 IP: */
+ /* Otherwise, use PEBS off-by-1 IP: */
set_linear_ip(regs, pebs->ip);

- /* ... and try to fix it up using the LBR entries: */
+ /*
+ * With precise_ip >= 2, try to fix up the off-by-1 IP
+ * using the LBR. If successful, the fixup function
+ * corrects regs->ip and calls set_linear_ip() on regs:
+ */
if (intel_pmu_pebs_fixup_ip(regs))
regs->flags |= PERF_EFLAGS_EXACT;
}
- } else
+ } else {
+ /*
+ * When precise_ip == 1, return the PEBS off-by-1 IP,
+ * no fixup attempted:
+ */
set_linear_ip(regs, pebs->ip);
+ }


if ((sample_type & (PERF_SAMPLE_ADDR | PERF_SAMPLE_PHYS_ADDR)) &&
diff --git a/kernel/events/core.c b/kernel/events/core.c
index fc1c330c6bd6..2d5fe26551f8 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4447,6 +4447,9 @@ static void _free_event(struct perf_event *event)
if (event->ctx)
put_ctx(event->ctx);

+ if (event->hw.target)
+ put_task_struct(event->hw.target);
+
exclusive_event_destroy(event);
module_put(event->pmu->module);

@@ -8397,6 +8400,10 @@ static int perf_kprobe_event_init(struct perf_event *event)

if (event->attr.type != perf_kprobe.type)
return -ENOENT;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
/*
* no branch sampling for probe events
*/
@@ -8434,6 +8441,10 @@ static int perf_uprobe_event_init(struct perf_event *event)

if (event->attr.type != perf_uprobe.type)
return -ENOENT;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
/*
* no branch sampling for probe events
*/
@@ -9955,6 +9966,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
* and we cannot use the ctx information because we need the
* pmu before we get a ctx.
*/
+ get_task_struct(task);
event->hw.target = task;
}

@@ -10070,6 +10082,8 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
perf_detach_cgroup(event);
if (event->ns)
put_pid_ns(event->ns);
+ if (event->hw.target)
+ put_task_struct(event->hw.target);
kfree(event);

return ERR_PTR(err);
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index 2c416509b834..c79193e598f5 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -252,6 +252,8 @@ int perf_kprobe_init(struct perf_event *p_event, bool is_retprobe)
ret = strncpy_from_user(
func, u64_to_user_ptr(p_event->attr.kprobe_func),
KSYM_NAME_LEN);
+ if (ret == KSYM_NAME_LEN)
+ ret = -E2BIG;
if (ret < 0)
goto out;

@@ -300,6 +302,8 @@ int perf_uprobe_init(struct perf_event *p_event, bool is_retprobe)
return -ENOMEM;
ret = strncpy_from_user(
path, u64_to_user_ptr(p_event->attr.uprobe_path), PATH_MAX);
+ if (ret == PATH_MAX)
+ return -E2BIG;
if (ret < 0)
goto out;
if (path[0] == '\0') {
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 2014f4351ae0..0d450b40988e 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -151,6 +151,8 @@ static void FETCH_FUNC_NAME(memory, string)(struct pt_regs *regs,
return;

ret = strncpy_from_user(dst, src, maxlen);
+ if (ret == maxlen)
+ dst[--ret] = '\0';

if (ret < 0) { /* Failed to fetch string */
((u8 *)get_rloc_data(dest))[0] = '\0';
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index f41079da38c5..d554c11e01ff 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -316,6 +316,7 @@
#define X86_FEATURE_VPCLMULQDQ (16*32+10) /* Carry-Less Multiplication Double Quadword */
#define X86_FEATURE_AVX512_VNNI (16*32+11) /* Vector Neural Network Instructions */
#define X86_FEATURE_AVX512_BITALG (16*32+12) /* Support for VPOPCNT[B,W] and VPSHUF-BITQMB instructions */
+#define X86_FEATURE_TME (16*32+13) /* Intel Total Memory Encryption */
#define X86_FEATURE_AVX512_VPOPCNTDQ (16*32+14) /* POPCNT for vectors of DW/QW */
#define X86_FEATURE_LA57 (16*32+16) /* 5-level page tables */
#define X86_FEATURE_RDPID (16*32+22) /* RDPID instruction */
@@ -328,6 +329,7 @@
/* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
#define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network Instructions */
#define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
+#define X86_FEATURE_PCONFIG (18*32+18) /* Intel PCONFIG */
#define X86_FEATURE_SPEC_CTRL (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
#define X86_FEATURE_INTEL_STIBP (18*32+27) /* "" Single Thread Indirect Branch Predictors */
#define X86_FEATURE_ARCH_CAPABILITIES (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */
diff --git a/tools/include/tools/config.h b/tools/include/tools/config.h
new file mode 100644
index 000000000000..08ade7df8132
--- /dev/null
+++ b/tools/include/tools/config.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _TOOLS_CONFIG_H
+#define _TOOLS_CONFIG_H
+
+/* Subset of include/linux/kconfig.h */
+
+#define __ARG_PLACEHOLDER_1 0,
+#define __take_second_arg(__ignored, val, ...) val
+
+/*
+ * Helper macros to use CONFIG_ options in C/CPP expressions. Note that
+ * these only work with boolean and tristate options.
+ */
+
+/*
+ * Getting something that works in C and CPP for an arg that may or may
+ * not be defined is tricky. Here, if we have "#define CONFIG_BOOGER 1"
+ * we match on the placeholder define, insert the "0," for arg1 and generate
+ * the triplet (0, 1, 0). Then the last step cherry picks the 2nd arg (a one).
+ * When CONFIG_BOOGER is not defined, we generate a (... 1, 0) pair, and when
+ * the last step cherry picks the 2nd arg, we get a zero.
+ */
+#define __is_defined(x) ___is_defined(x)
+#define ___is_defined(val) ____is_defined(__ARG_PLACEHOLDER_##val)
+#define ____is_defined(arg1_or_junk) __take_second_arg(arg1_or_junk 1, 0)
+
+/*
+ * IS_BUILTIN(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0
+ * otherwise. For boolean options, this is equivalent to
+ * IS_ENABLED(CONFIG_FOO).
+ */
+#define IS_BUILTIN(option) __is_defined(option)
+
+#endif /* _TOOLS_CONFIG_H */
diff --git a/tools/include/uapi/drm/i915_drm.h b/tools/include/uapi/drm/i915_drm.h
index 536ee4febd74..7f5634ce8e88 100644
--- a/tools/include/uapi/drm/i915_drm.h
+++ b/tools/include/uapi/drm/i915_drm.h
@@ -318,6 +318,7 @@ typedef struct _drm_i915_sarea {
#define DRM_I915_PERF_OPEN 0x36
#define DRM_I915_PERF_ADD_CONFIG 0x37
#define DRM_I915_PERF_REMOVE_CONFIG 0x38
+#define DRM_I915_QUERY 0x39

#define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
#define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@@ -375,6 +376,7 @@ typedef struct _drm_i915_sarea {
#define DRM_IOCTL_I915_PERF_OPEN DRM_IOW(DRM_COMMAND_BASE + DRM_I915_PERF_OPEN, struct drm_i915_perf_open_param)
#define DRM_IOCTL_I915_PERF_ADD_CONFIG DRM_IOW(DRM_COMMAND_BASE + DRM_I915_PERF_ADD_CONFIG, struct drm_i915_perf_oa_config)
#define DRM_IOCTL_I915_PERF_REMOVE_CONFIG DRM_IOW(DRM_COMMAND_BASE + DRM_I915_PERF_REMOVE_CONFIG, __u64)
+#define DRM_IOCTL_I915_QUERY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_QUERY, struct drm_i915_query)

/* Allow drivers to submit batchbuffers directly to hardware, relying
* on the security mechanisms provided by hardware.
@@ -1358,7 +1360,9 @@ struct drm_intel_overlay_attrs {
* active on a given plane.
*/

-#define I915_SET_COLORKEY_NONE (1<<0) /* disable color key matching */
+#define I915_SET_COLORKEY_NONE (1<<0) /* Deprecated. Instead set
+ * flags==0 to disable colorkeying.
+ */
#define I915_SET_COLORKEY_DESTINATION (1<<1)
#define I915_SET_COLORKEY_SOURCE (1<<2)
struct drm_intel_sprite_colorkey {
@@ -1604,15 +1608,115 @@ struct drm_i915_perf_oa_config {
__u32 n_flex_regs;

/*
- * These fields are pointers to tuples of u32 values (register
- * address, value). For example the expected length of the buffer
- * pointed by mux_regs_ptr is (2 * sizeof(u32) * n_mux_regs).
+ * These fields are pointers to tuples of u32 values (register address,
+ * value). For example the expected length of the buffer pointed by
+ * mux_regs_ptr is (2 * sizeof(u32) * n_mux_regs).
*/
__u64 mux_regs_ptr;
__u64 boolean_regs_ptr;
__u64 flex_regs_ptr;
};

+struct drm_i915_query_item {
+ __u64 query_id;
+#define DRM_I915_QUERY_TOPOLOGY_INFO 1
+
+ /*
+ * When set to zero by userspace, this is filled with the size of the
+ * data to be written at the data_ptr pointer. The kernel sets this
+ * value to a negative value to signal an error on a particular query
+ * item.
+ */
+ __s32 length;
+
+ /*
+ * Unused for now. Must be cleared to zero.
+ */
+ __u32 flags;
+
+ /*
+ * Data will be written at the location pointed by data_ptr when the
+ * value of length matches the length of the data to be written by the
+ * kernel.
+ */
+ __u64 data_ptr;
+};
+
+struct drm_i915_query {
+ __u32 num_items;
+
+ /*
+ * Unused for now. Must be cleared to zero.
+ */
+ __u32 flags;
+
+ /*
+ * This points to an array of num_items drm_i915_query_item structures.
+ */
+ __u64 items_ptr;
+};
+
+/*
+ * Data written by the kernel with query DRM_I915_QUERY_TOPOLOGY_INFO :
+ *
+ * data: contains the 3 pieces of information :
+ *
+ * - the slice mask with one bit per slice telling whether a slice is
+ * available. The availability of slice X can be queried with the following
+ * formula :
+ *
+ * (data[X / 8] >> (X % 8)) & 1
+ *
+ * - the subslice mask for each slice with one bit per subslice telling
+ * whether a subslice is available. The availability of subslice Y in slice
+ * X can be queried with the following formula :
+ *
+ * (data[subslice_offset +
+ * X * subslice_stride +
+ * Y / 8] >> (Y % 8)) & 1
+ *
+ * - the EU mask for each subslice in each slice with one bit per EU telling
+ * whether an EU is available. The availability of EU Z in subslice Y in
+ * slice X can be queried with the following formula :
+ *
+ * (data[eu_offset +
+ * (X * max_subslices + Y) * eu_stride +
+ * Z / 8] >> (Z % 8)) & 1
+ */
+struct drm_i915_query_topology_info {
+ /*
+ * Unused for now. Must be cleared to zero.
+ */
+ __u16 flags;
+
+ __u16 max_slices;
+ __u16 max_subslices;
+ __u16 max_eus_per_subslice;
+
+ /*
+ * Offset in data[] at which the subslice masks are stored.
+ */
+ __u16 subslice_offset;
+
+ /*
+ * Stride at which each of the subslice masks for each slice are
+ * stored.
+ */
+ __u16 subslice_stride;
+
+ /*
+ * Offset in data[] at which the EU masks are stored.
+ */
+ __u16 eu_offset;
+
+ /*
+ * Stride at which each of the EU masks for each subslice are stored.
+ */
+ __u16 eu_stride;
+
+ __u8 data[];
+};
+
#if defined(__cplusplus)
}
#endif
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index e1a660e60849..917e36fde6d8 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -80,6 +80,7 @@ OPTIONS
- comm: command (name) of the task which can be read via /proc/<pid>/comm
- pid: command and tid of the task
- dso: name of library or module executed at the time of sample
+ - dso_size: size of library or module executed at the time of sample
- symbol: name of function executed at the time of sample
- symbol_size: size of function executed at the time of sample
- parent: name of function matched to the parent regex filter. Unmatched
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 5a7035c5c523..115db9e06ecd 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -117,6 +117,9 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
--sched::
Accrue thread runtime and provide a summary at the end of the session.

+--failure::
+ Show only syscalls that failed, i.e. that returned < 0.
+
-i::
--input::
Process events from a given perf data file.
diff --git a/tools/perf/Documentation/perf-version.txt b/tools/perf/Documentation/perf-version.txt
new file mode 100644
index 000000000000..e207b7cfca26
--- /dev/null
+++ b/tools/perf/Documentation/perf-version.txt
@@ -0,0 +1,24 @@
+perf-version(1)
+===============
+
+NAME
+----
+perf-version - display the version of perf binary
+
+SYNOPSIS
+--------
+'perf version' [--build-options]
+
+DESCRIPTION
+-----------
+With no options given, the 'perf version' prints the perf version
+on the standard output.
+
+If the option '--build-options' is given, then the status of
+compiled-in libraries are printed on the standard output.
+
+OPTIONS
+-------
+--build-options::
+ Prints the status of compiled-in libraries on the
+ standard output.
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 98ff73648b51..c7abd83a8e19 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -346,12 +346,16 @@ else
ifneq ($(feature-dwarf_getlocations), 1)
msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
else
- CFLAGS += -DHAVE_DWARF_GETLOCATIONS
+ CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
endif # dwarf_getlocations
endif # Dwarf support
endif # libelf support
endif # NO_LIBELF

+ifeq ($(feature-glibc), 1)
+ CFLAGS += -DHAVE_GLIBC_SUPPORT
+endif
+
ifdef NO_DWARF
NO_LIBDW_DWARF_UNWIND := 1
endif
@@ -635,6 +639,7 @@ else
else
LDFLAGS += $(PERL_EMBED_LDFLAGS)
EXTLIBS += $(PERL_EMBED_LIBADD)
+ CFLAGS += -DHAVE_LIBPERL_SUPPORT
$(call detected,CONFIG_LIBPERL)
endif
endif
@@ -671,6 +676,7 @@ else
LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
EXTLIBS += $(PYTHON_EMBED_LIBADD)
LANG_BINDINGS += $(obj-perf)python/perf.so
+ CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
$(call detected,CONFIG_LIBPYTHON)
endif
endif
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index f7517e1b73f8..83e453de36f8 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -364,7 +364,8 @@ LIBS = -Wl,--whole-archive $(PERFLIBS) $(EXTRA_PERFLIBS) -Wl,--no-whole-archive

ifeq ($(USE_CLANG), 1)
CLANGLIBS_LIST = AST Basic CodeGen Driver Frontend Lex Tooling Edit Sema Analysis Parse Serialization
- LIBCLANG = $(foreach l,$(CLANGLIBS_LIST),$(wildcard $(shell $(LLVM_CONFIG) --libdir)/libclang$(l).a))
+ CLANGLIBS_NOEXT_LIST = $(foreach l,$(CLANGLIBS_LIST),$(shell $(LLVM_CONFIG) --libdir)/libclang$(l))
+ LIBCLANG = $(foreach l,$(CLANGLIBS_NOEXT_LIST),$(wildcard $(l).a $(l).so))
LIBS += -Wl,--start-group $(LIBCLANG) -Wl,--end-group
endif

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 87b95c9410b4..3ad17ee89403 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -112,6 +112,7 @@ struct trace {
bool multiple_threads;
bool summary;
bool summary_only;
+ bool failure_only;
bool show_comm;
bool print_sample;
bool show_tool_stats;
@@ -1565,7 +1566,7 @@ static int trace__printf_interrupted_entry(struct trace *trace)
struct thread_trace *ttrace;
size_t printed;

- if (trace->current == NULL)
+ if (trace->failure_only || trace->current == NULL)
return 0;

ttrace = thread__priv(trace->current);
@@ -1638,7 +1639,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
args, trace, thread);

if (sc->is_exit) {
- if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) {
+ if (!(trace->duration_filter || trace->summary_only || trace->failure_only || trace->min_stack)) {
trace__fprintf_entry_head(trace, thread, 0, false, ttrace->entry_time, trace->output);
fprintf(trace->output, "%-70s)\n", ttrace->entry_str);
}
@@ -1742,7 +1743,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
}
}

- if (trace->summary_only)
+ if (trace->summary_only || (ret >= 0 && trace->failure_only))
goto out;

trace__fprintf_entry_head(trace, thread, duration, duration_calculated, ttrace->entry_time, trace->output);
@@ -1961,7 +1962,7 @@ static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
trace->output);
}

- fprintf(trace->output, ")\n");
+ fprintf(trace->output, "\n");

if (callchain_ret > 0)
trace__fprintf_callchain(trace, sample);
@@ -3087,6 +3088,8 @@ int cmd_trace(int argc, const char **argv)
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
OPT_BOOLEAN('T', "time", &trace.full_time,
"Show full timestamp, not time relative to first start"),
+ OPT_BOOLEAN(0, "failure", &trace.failure_only,
+ "Show only syscalls that failed"),
OPT_BOOLEAN('s', "summary", &trace.summary_only,
"Show only syscall summary with statistics"),
OPT_BOOLEAN('S', "with-summary", &trace.summary,
diff --git a/tools/perf/builtin-version.c b/tools/perf/builtin-version.c
index 37019c5d675f..2abe3910d6b6 100644
--- a/tools/perf/builtin-version.c
+++ b/tools/perf/builtin-version.c
@@ -1,11 +1,91 @@
// SPDX-License-Identifier: GPL-2.0
#include "builtin.h"
#include "perf.h"
+#include "color.h"
#include <linux/compiler.h>
+#include <tools/config.h>
#include <stdio.h>
+#include <string.h>
+#include <subcmd/parse-options.h>

-int cmd_version(int argc __maybe_unused, const char **argv __maybe_unused)
+int version_verbose;
+
+struct version {
+ bool build_options;
+};
+
+static struct version version;
+
+static struct option version_options[] = {
+ OPT_BOOLEAN(0, "build-options", &version.build_options,
+ "display the build options"),
+};
+
+static const char * const version_usage[] = {
+ "perf version [<options>]",
+ NULL
+};
+
+static void on_off_print(const char *status)
+{
+ printf("[ ");
+
+ if (!strcmp(status, "OFF"))
+ color_fprintf(stdout, PERF_COLOR_RED, "%-3s", status);
+ else
+ color_fprintf(stdout, PERF_COLOR_GREEN, "%-3s", status);
+
+ printf(" ]");
+}
+
+static void status_print(const char *name, const char *macro,
+ const char *status)
{
+ printf("%22s: ", name);
+ on_off_print(status);
+ printf(" # %s\n", macro);
+}
+
+#define STATUS(__d, __m) \
+do { \
+ if (IS_BUILTIN(__d)) \
+ status_print(#__m, #__d, "on"); \
+ else \
+ status_print(#__m, #__d, "OFF"); \
+} while (0)
+
+static void library_status(void)
+{
+ STATUS(HAVE_DWARF_SUPPORT, dwarf);
+ STATUS(HAVE_DWARF_GETLOCATIONS_SUPPORT, dwarf_getlocations);
+ STATUS(HAVE_GLIBC_SUPPORT, glibc);
+ STATUS(HAVE_GTK2_SUPPORT, gtk2);
+ STATUS(HAVE_LIBAUDIT_SUPPORT, libaudit);
+ STATUS(HAVE_LIBBFD_SUPPORT, libbfd);
+ STATUS(HAVE_LIBELF_SUPPORT, libelf);
+ STATUS(HAVE_LIBNUMA_SUPPORT, libnuma);
+ STATUS(HAVE_LIBNUMA_SUPPORT, numa_num_possible_cpus);
+ STATUS(HAVE_LIBPERL_SUPPORT, libperl);
+ STATUS(HAVE_LIBPYTHON_SUPPORT, libpython);
+ STATUS(HAVE_SLANG_SUPPORT, libslang);
+ STATUS(HAVE_LIBCRYPTO_SUPPORT, libcrypto);
+ STATUS(HAVE_LIBUNWIND_SUPPORT, libunwind);
+ STATUS(HAVE_DWARF_SUPPORT, libdw-dwarf-unwind);
+ STATUS(HAVE_ZLIB_SUPPORT, zlib);
+ STATUS(HAVE_LZMA_SUPPORT, lzma);
+ STATUS(HAVE_AUXTRACE_SUPPORT, get_cpuid);
+ STATUS(HAVE_LIBBPF_SUPPORT, bpf);
+}
+
+int cmd_version(int argc, const char **argv)
+{
+ argc = parse_options(argc, argv, version_options, version_usage,
+ PARSE_OPT_STOP_AT_NON_OPTION);
+
printf("perf version %s\n", perf_version_string);
+
+ if (version.build_options || version_verbose == 1)
+ library_status();
+
return 0;
}
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 1b3fc8ec0fa2..1659029d03fc 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -190,6 +190,12 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
break;
}

+ if (!strcmp(cmd, "-vv")) {
+ (*argv)[0] = "version";
+ version_verbose = 1;
+ break;
+ }
+
/*
* Check remaining flags.
*/
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 8fec1abd0f1f..a1a97956136f 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -84,6 +84,7 @@ struct record_opts {
struct option;
extern const char * const *record_usage;
extern struct option *record_options;
+extern int version_verbose;

int record__parse_freq(const struct option *opt, const char *str, int unset);
#endif
diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index 9f6ce29b83b4..4f75561424ed 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -45,11 +45,16 @@ void ui_browser__set_percent_color(struct ui_browser *browser,
ui_browser__set_color(browser, color);
}

-void ui_browser__gotorc(struct ui_browser *browser, int y, int x)
+void ui_browser__gotorc_title(struct ui_browser *browser, int y, int x)
{
SLsmg_gotorc(browser->y + y, browser->x + x);
}

+void ui_browser__gotorc(struct ui_browser *browser, int y, int x)
+{
+ SLsmg_gotorc(browser->y + y + browser->extra_title_lines, browser->x + x);
+}
+
void ui_browser__write_nstring(struct ui_browser *browser __maybe_unused, const char *msg,
unsigned int width)
{
@@ -191,6 +196,7 @@ void ui_browser__refresh_dimensions(struct ui_browser *browser)
{
browser->width = SLtt_Screen_Cols - 1;
browser->height = browser->rows = SLtt_Screen_Rows - 2;
+ browser->rows -= browser->extra_title_lines;
browser->y = 1;
browser->x = 0;
}
@@ -337,8 +343,8 @@ static int __ui_browser__refresh(struct ui_browser *browser)
else
width += 1;

- SLsmg_fill_region(browser->y + row, browser->x,
- browser->height - row, width, ' ');
+ SLsmg_fill_region(browser->y + row + browser->extra_title_lines, browser->x,
+ browser->rows - row, width, ' ');

return 0;
}
diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h
index 70057178ee34..aa5932e1d62e 100644
--- a/tools/perf/ui/browser.h
+++ b/tools/perf/ui/browser.h
@@ -17,6 +17,7 @@ struct ui_browser {
u64 index, top_idx;
void *top, *entries;
u16 y, x, width, height, rows, columns, horiz_scroll;
+ u8 extra_title_lines;
int current_color;
void *priv;
const char *title;
@@ -38,6 +39,7 @@ bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row);
void ui_browser__refresh_dimensions(struct ui_browser *browser);
void ui_browser__reset_index(struct ui_browser *browser);

+void ui_browser__gotorc_title(struct ui_browser *browser, int y, int x);
void ui_browser__gotorc(struct ui_browser *browser, int y, int x);
void ui_browser__write_nstring(struct ui_browser *browser, const char *msg,
unsigned int width);
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index c02fb437ac8e..12c099a87f8b 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -218,7 +218,7 @@ static unsigned int annotate_browser__refresh(struct ui_browser *browser)
annotate_browser__draw_current_jump(browser);

ui_browser__set_color(browser, HE_COLORSET_NORMAL);
- __ui_browser__vline(browser, pcnt_width, 0, browser->height - 1);
+ __ui_browser__vline(browser, pcnt_width, 0, browser->rows - 1);
return ret;
}

@@ -592,21 +592,40 @@ bool annotate_browser__continue_search_reverse(struct annotate_browser *browser,
return __annotate_browser__search_reverse(browser);
}

+static int annotate_browser__show(struct ui_browser *browser, char *title, const char *help)
+{
+ struct map_symbol *ms = browser->priv;
+ struct symbol *sym = ms->sym;
+ char symbol_dso[SYM_TITLE_MAX_SIZE];
+
+ if (ui_browser__show(browser, title, help) < 0)
+ return -1;
+
+ sym_title(sym, ms->map, symbol_dso, sizeof(symbol_dso));
+
+ ui_browser__gotorc_title(browser, 0, 0);
+ ui_browser__set_color(browser, HE_COLORSET_ROOT);
+ ui_browser__write_nstring(browser, symbol_dso, browser->width + 1);
+ return 0;
+}
+
static int annotate_browser__run(struct annotate_browser *browser,
struct perf_evsel *evsel,
struct hist_browser_timer *hbt)
{
struct rb_node *nd = NULL;
+ struct hists *hists = evsel__hists(evsel);
struct map_symbol *ms = browser->b.priv;
struct symbol *sym = ms->sym;
struct annotation *notes = symbol__annotation(ms->sym);
const char *help = "Press 'h' for help on key bindings";
int delay_secs = hbt ? hbt->refresh : 0;
+ char title[256];
int key;
- char title[SYM_TITLE_MAX_SIZE];

- sym_title(sym, ms->map, title, sizeof(title));
- if (ui_browser__show(&browser->b, title, help) < 0)
+ annotation__scnprintf_samples_period(notes, title, sizeof(title), evsel);
+
+ if (annotate_browser__show(&browser->b, title, help) < 0)
return -1;

annotate_browser__calc_percent(browser, evsel);
@@ -637,8 +656,11 @@ static int annotate_browser__run(struct annotate_browser *browser,
if (hbt)
hbt->timer(hbt->arg);

- if (delay_secs != 0)
+ if (delay_secs != 0) {
symbol__annotate_decay_histogram(sym, evsel->idx);
+ hists__scnprintf_title(hists, title, sizeof(title));
+ annotate_browser__show(&browser->b, title, help);
+ }
continue;
case K_TAB:
if (nd != NULL) {
@@ -812,6 +834,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
.seek = ui_browser__list_head_seek,
.write = annotate_browser__write,
.filter = disasm_line__filter,
+ .extra_title_lines = 1, /* for hists__scnprintf_title() */
.priv = &ms,
.use_navkeypressed = true,
},
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 8b4e82548f8e..0eec06c105c6 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -32,8 +32,7 @@

extern void hist_browser__init_hpp(void);

-static int perf_evsel_browser_title(struct hist_browser *browser,
- char *bf, size_t size);
+static int hists_browser__scnprintf_title(struct hist_browser *browser, char *bf, size_t size);
static void hist_browser__update_nr_entries(struct hist_browser *hb);

static struct rb_node *hists__filter_entries(struct rb_node *nd,
@@ -62,6 +61,15 @@ static int hist_browser__get_folding(struct hist_browser *browser)
return unfolded_rows;
}

+static void hist_browser__set_title_space(struct hist_browser *hb)
+{
+ struct ui_browser *browser = &hb->b;
+ struct hists *hists = hb->hists;
+ struct perf_hpp_list *hpp_list = hists->hpp_list;
+
+ browser->extra_title_lines = hb->show_headers ? hpp_list->nr_header_lines : 0;
+}
+
static u32 hist_browser__nr_entries(struct hist_browser *hb)
{
u32 nr_entries;
@@ -82,10 +90,16 @@ static void hist_browser__update_rows(struct hist_browser *hb)
struct ui_browser *browser = &hb->b;
struct hists *hists = hb->hists;
struct perf_hpp_list *hpp_list = hists->hpp_list;
- u16 header_offset, index_row;
+ u16 index_row;

- header_offset = hb->show_headers ? hpp_list->nr_header_lines : 0;
- browser->rows = browser->height - header_offset;
+ if (!hb->show_headers) {
+ browser->rows += browser->extra_title_lines;
+ browser->extra_title_lines = 0;
+ return;
+ }
+
+ browser->extra_title_lines = hpp_list->nr_header_lines;
+ browser->rows -= browser->extra_title_lines;
/*
* Verify if we were at the last line and that line isn't
* visibe because we now show the header line(s).
@@ -108,17 +122,6 @@ static void hist_browser__refresh_dimensions(struct ui_browser *browser)
* changeset.
*/
ui_browser__refresh_dimensions(browser);
- hist_browser__update_rows(hb);
-}
-
-static void hist_browser__gotorc(struct hist_browser *browser, int row, int column)
-{
- struct hists *hists = browser->hists;
- struct perf_hpp_list *hpp_list = hists->hpp_list;
- u16 header_offset;
-
- header_offset = browser->show_headers ? hpp_list->nr_header_lines : 0;
- ui_browser__gotorc(&browser->b, row + header_offset, column);
}

static void hist_browser__reset(struct hist_browser *browser)
@@ -656,9 +659,10 @@ int hist_browser__run(struct hist_browser *browser, const char *help,
struct hist_entry *h = rb_entry(browser->b.top,
struct hist_entry, rb_node);
ui_helpline__pop();
- ui_helpline__fpush("%d: nr_ent=(%d,%d), rows=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",
+ ui_helpline__fpush("%d: nr_ent=(%d,%d), etl: %d, rows=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",
seq++, browser->b.nr_entries,
browser->hists->nr_entries,
+ browser->b.extra_title_lines,
browser->b.rows,
browser->b.index,
browser->b.top_idx,
@@ -733,7 +737,7 @@ static void hist_browser__show_callchain_entry(struct hist_browser *browser,
}

ui_browser__set_color(&browser->b, color);
- hist_browser__gotorc(browser, row, 0);
+ ui_browser__gotorc(&browser->b, row, 0);
ui_browser__write_nstring(&browser->b, " ", offset);
ui_browser__printf(&browser->b, "%c", folded_sign);
ui_browser__write_graph(&browser->b, show_annotated ? SLSMG_RARROW_CHAR : ' ');
@@ -1249,7 +1253,7 @@ static int hist_browser__show_entry(struct hist_browser *browser,
};
int column = 0;

- hist_browser__gotorc(browser, row, 0);
+ ui_browser__gotorc(&browser->b, row, 0);

hists__for_each_format(browser->hists, fmt) {
char s[2048];
@@ -1358,7 +1362,7 @@ static int hist_browser__show_hierarchy_entry(struct hist_browser *browser,
goto show_callchain;
}

- hist_browser__gotorc(browser, row, 0);
+ ui_browser__gotorc(&browser->b, row, 0);

if (current_entry && browser->b.navkeypressed)
ui_browser__set_color(&browser->b, HE_COLORSET_SELECTED);
@@ -1507,7 +1511,7 @@ static int hist_browser__show_no_entry(struct hist_browser *browser,
browser->selection = NULL;
}

- hist_browser__gotorc(browser, row, 0);
+ ui_browser__gotorc(&browser->b, row, 0);

if (current_entry && browser->b.navkeypressed)
ui_browser__set_color(&browser->b, HE_COLORSET_SELECTED);
@@ -1713,7 +1717,7 @@ static void hists_browser__headers(struct hist_browser *browser)
hists_browser__scnprintf_headers(browser, headers,
sizeof(headers), line);

- ui_browser__gotorc(&browser->b, line, 0);
+ ui_browser__gotorc_title(&browser->b, line, 0);
ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);
ui_browser__write_nstring(&browser->b, headers, browser->b.width + 1);
}
@@ -1740,17 +1744,11 @@ static void ui_browser__hists_init_top(struct ui_browser *browser)
static unsigned int hist_browser__refresh(struct ui_browser *browser)
{
unsigned row = 0;
- u16 header_offset = 0;
struct rb_node *nd;
struct hist_browser *hb = container_of(browser, struct hist_browser, b);
- struct hists *hists = hb->hists;
-
- if (hb->show_headers) {
- struct perf_hpp_list *hpp_list = hists->hpp_list;

+ if (hb->show_headers)
hist_browser__show_headers(hb);
- header_offset = hpp_list->nr_header_lines;
- }

ui_browser__hists_init_top(browser);
hb->he_selection = NULL;
@@ -1788,7 +1786,7 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser)
break;
}

- return row + header_offset;
+ return row;
}

static struct rb_node *hists__filter_entries(struct rb_node *nd,
@@ -2143,6 +2141,7 @@ void hist_browser__init(struct hist_browser *browser,
browser->b.seek = ui_browser__hists_seek;
browser->b.use_navkeypressed = true;
browser->show_headers = symbol_conf.show_hist_headers;
+ hist_browser__set_title_space(browser);

if (symbol_conf.report_hierarchy) {
struct perf_hpp_list_node *fmt_node;
@@ -2183,7 +2182,7 @@ perf_evsel_browser__new(struct perf_evsel *evsel,
if (browser) {
browser->hbt = hbt;
browser->env = env;
- browser->title = perf_evsel_browser_title;
+ browser->title = hists_browser__scnprintf_title;
}
return browser;
}
@@ -2209,84 +2208,11 @@ static inline bool is_report_browser(void *timer)
return timer == NULL;
}

-static int perf_evsel_browser_title(struct hist_browser *browser,
- char *bf, size_t size)
+static int hists_browser__scnprintf_title(struct hist_browser *browser, char *bf, size_t size)
{
struct hist_browser_timer *hbt = browser->hbt;
- struct hists *hists = browser->hists;
- char unit;
- int printed;
- const struct dso *dso = hists->dso_filter;
- const struct thread *thread = hists->thread_filter;
- int socket_id = hists->socket_filter;
- unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
- u64 nr_events = hists->stats.total_period;
- struct perf_evsel *evsel = hists_to_evsel(hists);
- const char *ev_name = perf_evsel__name(evsel);
- char buf[512], sample_freq_str[64] = "";
- size_t buflen = sizeof(buf);
- char ref[30] = " show reference callgraph, ";
- bool enable_ref = false;
+ int printed = __hists__scnprintf_title(browser->hists, bf, size, !is_report_browser(hbt));

- if (symbol_conf.filter_relative) {
- nr_samples = hists->stats.nr_non_filtered_samples;
- nr_events = hists->stats.total_non_filtered_period;
- }
-
- if (perf_evsel__is_group_event(evsel)) {
- struct perf_evsel *pos;
-
- perf_evsel__group_desc(evsel, buf, buflen);
- ev_name = buf;
-
- for_each_group_member(pos, evsel) {
- struct hists *pos_hists = evsel__hists(pos);
-
- if (symbol_conf.filter_relative) {
- nr_samples += pos_hists->stats.nr_non_filtered_samples;
- nr_events += pos_hists->stats.total_non_filtered_period;
- } else {
- nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
- nr_events += pos_hists->stats.total_period;
- }
- }
- }
-
- if (symbol_conf.show_ref_callgraph &&
- strstr(ev_name, "call-graph=no"))
- enable_ref = true;
-
- if (!is_report_browser(hbt))
- scnprintf(sample_freq_str, sizeof(sample_freq_str), " %d Hz,", evsel->attr.sample_freq);
-
- nr_samples = convert_unit(nr_samples, &unit);
- printed = scnprintf(bf, size,
- "Samples: %lu%c of event%s '%s',%s%sEvent count (approx.): %" PRIu64,
- nr_samples, unit, evsel->nr_members > 1 ? "s" : "",
- ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events);
-
-
- if (hists->uid_filter_str)
- printed += snprintf(bf + printed, size - printed,
- ", UID: %s", hists->uid_filter_str);
- if (thread) {
- if (hists__has(hists, thread)) {
- printed += scnprintf(bf + printed, size - printed,
- ", Thread: %s(%d)",
- (thread->comm_set ? thread__comm_str(thread) : ""),
- thread->tid);
- } else {
- printed += scnprintf(bf + printed, size - printed,
- ", Thread: %s",
- (thread->comm_set ? thread__comm_str(thread) : ""));
- }
- }
- if (dso)
- printed += scnprintf(bf + printed, size - printed,
- ", DSO: %s", dso->short_name);
- if (socket_id > -1)
- printed += scnprintf(bf + printed, size - printed,
- ", Processor Socket: %d", socket_id);
if (!is_report_browser(hbt)) {
struct perf_top *top = hbt->arg;

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 3a428d7c59b9..fbad8dfbb186 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -17,6 +17,7 @@
#include "config.h"
#include "cache.h"
#include "symbol.h"
+#include "units.h"
#include "debug.h"
#include "annotate.h"
#include "evsel.h"
@@ -2324,7 +2325,7 @@ int symbol__tty_annotate2(struct symbol *sym, struct map *map,
struct dso *dso = map->dso;
struct rb_root source_line = RB_ROOT;
struct annotation_options opts = annotation__default_options;
- const char *ev_name = perf_evsel__name(evsel);
+ struct annotation *notes = symbol__annotation(sym);
char buf[1024];

if (symbol__annotate2(sym, map, evsel, &opts, NULL) < 0)
@@ -2336,12 +2337,8 @@ int symbol__tty_annotate2(struct symbol *sym, struct map *map,
print_summary(&source_line, dso->long_name);
}

- if (perf_evsel__is_group_event(evsel)) {
- perf_evsel__group_desc(evsel, buf, sizeof(buf));
- ev_name = buf;
- }
-
- fprintf(stdout, "%s() %s\nEvent: %s\n\n", sym->name, dso->long_name, ev_name);
+ annotation__scnprintf_samples_period(notes, buf, sizeof(buf), evsel);
+ fprintf(stdout, "%s\n%s() %s\n", buf, sym->name, dso->long_name);
symbol__annotate_fprintf2(sym, stdout);

annotated_source__purge(symbol__annotation(sym)->src);
@@ -2597,6 +2594,46 @@ int symbol__annotate2(struct symbol *sym, struct map *map, struct perf_evsel *ev
return -1;
}

+int __annotation__scnprintf_samples_period(struct annotation *notes,
+ char *bf, size_t size,
+ struct perf_evsel *evsel,
+ bool show_freq)
+{
+ const char *ev_name = perf_evsel__name(evsel);
+ char buf[1024], ref[30] = " show reference callgraph, ";
+ char sample_freq_str[64] = "";
+ unsigned long nr_samples = 0;
+ int nr_members = 1;
+ bool enable_ref = false;
+ u64 nr_events = 0;
+ char unit;
+ int i;
+
+ if (perf_evsel__is_group_event(evsel)) {
+ perf_evsel__group_desc(evsel, buf, sizeof(buf));
+ ev_name = buf;
+ nr_members = evsel->nr_members;
+ }
+
+ for (i = 0; i < nr_members; i++) {
+ struct sym_hist *ah = annotation__histogram(notes, evsel->idx + i);
+
+ nr_samples += ah->nr_samples;
+ nr_events += ah->period;
+ }
+
+ if (symbol_conf.show_ref_callgraph && strstr(ev_name, "call-graph=no"))
+ enable_ref = true;
+
+ if (show_freq)
+ scnprintf(sample_freq_str, sizeof(sample_freq_str), " %d Hz,", evsel->attr.sample_freq);
+
+ nr_samples = convert_unit(nr_samples, &unit);
+ return scnprintf(bf, size, "Samples: %lu%c of event%s '%s',%s%sEvent count (approx.): %" PRIu64,
+ nr_samples, unit, evsel->nr_members > 1 ? "s" : "",
+ ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events);
+}
+
#define ANNOTATION__CFG(n) \
{ .name = #n, .value = &annotation__default_options.n, }

diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index ff7e3df31efa..db8d09bea07e 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -151,6 +151,18 @@ double annotation_line__max_percent(struct annotation_line *al, struct annotatio
void annotation_line__write(struct annotation_line *al, struct annotation *notes,
struct annotation_write_ops *ops);

+int __annotation__scnprintf_samples_period(struct annotation *notes,
+ char *bf, size_t size,
+ struct perf_evsel *evsel,
+ bool show_freq);
+
+static inline int annotation__scnprintf_samples_period(struct annotation *notes,
+ char *bf, size_t size,
+ struct perf_evsel *evsel)
+{
+ return __annotation__scnprintf_samples_period(notes, bf, size, evsel, true);
+}
+
int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw);
size_t disasm__fprintf(struct list_head *head, FILE *fp);
void symbol__calc_percent(struct symbol *sym, struct perf_evsel *evsel);
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index fb357a00dd86..857de69a5361 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -302,13 +302,27 @@ static int auxtrace_queues__split_buffer(struct auxtrace_queues *queues,
return 0;
}

+static bool filter_cpu(struct perf_session *session, int cpu)
+{
+ unsigned long *cpu_bitmap = session->itrace_synth_opts->cpu_bitmap;
+
+ return cpu_bitmap && cpu != -1 && !test_bit(cpu, cpu_bitmap);
+}
+
static int auxtrace_queues__add_buffer(struct auxtrace_queues *queues,
struct perf_session *session,
unsigned int idx,
struct auxtrace_buffer *buffer,
struct auxtrace_buffer **buffer_ptr)
{
- int err;
+ int err = -ENOMEM;
+
+ if (filter_cpu(session, buffer->cpu))
+ return 0;
+
+ buffer = memdup(buffer, sizeof(*buffer));
+ if (!buffer)
+ return -ENOMEM;

if (session->one_mmap) {
buffer->data = buffer->data_offset - session->one_mmap_offset +
@@ -316,31 +330,28 @@ static int auxtrace_queues__add_buffer(struct auxtrace_queues *queues,
} else if (perf_data__is_pipe(session->data)) {
buffer->data = auxtrace_copy_data(buffer->size, session);
if (!buffer->data)
- return -ENOMEM;
+ goto out_free;
buffer->data_needs_freeing = true;
} else if (BITS_PER_LONG == 32 &&
buffer->size > BUFFER_LIMIT_FOR_32_BIT) {
err = auxtrace_queues__split_buffer(queues, idx, buffer);
if (err)
- return err;
+ goto out_free;
}

err = auxtrace_queues__queue_buffer(queues, idx, buffer);
if (err)
- return err;
+ goto out_free;

/* FIXME: Doesn't work for split buffer */
if (buffer_ptr)
*buffer_ptr = buffer;

return 0;
-}

-static bool filter_cpu(struct perf_session *session, int cpu)
-{
- unsigned long *cpu_bitmap = session->itrace_synth_opts->cpu_bitmap;
-
- return cpu_bitmap && cpu != -1 && !test_bit(cpu, cpu_bitmap);
+out_free:
+ auxtrace_buffer__free(buffer);
+ return err;
}

int auxtrace_queues__add_event(struct auxtrace_queues *queues,
@@ -348,36 +359,19 @@ int auxtrace_queues__add_event(struct auxtrace_queues *queues,
union perf_event *event, off_t data_offset,
struct auxtrace_buffer **buffer_ptr)
{
- struct auxtrace_buffer *buffer;
- unsigned int idx;
- int err;
-
- if (filter_cpu(session, event->auxtrace.cpu))
- return 0;
-
- buffer = zalloc(sizeof(struct auxtrace_buffer));
- if (!buffer)
- return -ENOMEM;
-
- buffer->pid = -1;
- buffer->tid = event->auxtrace.tid;
- buffer->cpu = event->auxtrace.cpu;
- buffer->data_offset = data_offset;
- buffer->offset = event->auxtrace.offset;
- buffer->reference = event->auxtrace.reference;
- buffer->size = event->auxtrace.size;
- idx = event->auxtrace.idx;
-
- err = auxtrace_queues__add_buffer(queues, session, idx, buffer,
- buffer_ptr);
- if (err)
- goto out_err;
-
- return 0;
+ struct auxtrace_buffer buffer = {
+ .pid = -1,
+ .tid = event->auxtrace.tid,
+ .cpu = event->auxtrace.cpu,
+ .data_offset = data_offset,
+ .offset = event->auxtrace.offset,
+ .reference = event->auxtrace.reference,
+ .size = event->auxtrace.size,
+ };
+ unsigned int idx = event->auxtrace.idx;

-out_err:
- auxtrace_buffer__free(buffer);
- return err;
+ return auxtrace_queues__add_buffer(queues, session, idx, &buffer,
+ buffer_ptr);
}

static int auxtrace_queues__add_indexed_event(struct auxtrace_queues *queues,
diff --git a/tools/perf/util/c++/clang-test.cpp b/tools/perf/util/c++/clang-test.cpp
index a4014d786676..7b042a5ebc68 100644
--- a/tools/perf/util/c++/clang-test.cpp
+++ b/tools/perf/util/c++/clang-test.cpp
@@ -41,7 +41,7 @@ int test__clang_to_IR(void)
if (!M)
return -1;
for (llvm::Function& F : *M)
- if (F.getName() == "bpf_func__SyS_epoll_wait")
+ if (F.getName() == "bpf_func__SyS_epoll_pwait")
return 0;
return -1;
}
diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp
index 1bfc946e37dc..bf31ceab33bd 100644
--- a/tools/perf/util/c++/clang.cpp
+++ b/tools/perf/util/c++/clang.cpp
@@ -9,6 +9,7 @@
* Copyright (C) 2016 Huawei Inc.
*/

+#include "clang/Basic/Version.h"
#include "clang/CodeGen/CodeGenAction.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Frontend/CompilerInstance.h"
@@ -58,7 +59,8 @@ createCompilerInvocation(llvm::opt::ArgStringList CFlags, StringRef& Path,

FrontendOptions& Opts = CI->getFrontendOpts();
Opts.Inputs.clear();
- Opts.Inputs.emplace_back(Path, IK_C);
+ Opts.Inputs.emplace_back(Path,
+ FrontendOptions::getInputKindForExtension("c"));
return CI;
}

@@ -71,10 +73,17 @@ getModuleFromSource(llvm::opt::ArgStringList CFlags,

Clang.setVirtualFileSystem(&*VFS);

+#if CLANG_VERSION_MAJOR < 4
IntrusiveRefCntPtr<CompilerInvocation> CI =
createCompilerInvocation(std::move(CFlags), Path,
Clang.getDiagnostics());
Clang.setInvocation(&*CI);
+#else
+ std::shared_ptr<CompilerInvocation> CI(
+ createCompilerInvocation(std::move(CFlags), Path,
+ Clang.getDiagnostics()));
+ Clang.setInvocation(CI);
+#endif

std::unique_ptr<CodeGenAction> Act(new EmitLLVMOnlyAction(&*LLVMCtx));
if (!Clang.ExecuteAction(*Act))
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
index f5acda13dcfa..7eb7de5aee44 100644
--- a/tools/perf/util/dwarf-aux.c
+++ b/tools/perf/util/dwarf-aux.c
@@ -979,7 +979,7 @@ int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf)
return ret < 0 ? ret : strbuf_addf(buf, "\t%s", dwarf_diename(vr_die));
}

-#ifdef HAVE_DWARF_GETLOCATIONS
+#ifdef HAVE_DWARF_GETLOCATIONS_SUPPORT
/**
* die_get_var_innermost_scope - Get innermost scope range of given variable DIE
* @sp_die: a subprogram DIE
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 7d968892ee39..4d602fba40b2 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -6,6 +6,7 @@
#include "session.h"
#include "namespaces.h"
#include "sort.h"
+#include "units.h"
#include "evlist.h"
#include "evsel.h"
#include "annotate.h"
@@ -14,6 +15,7 @@
#include "ui/progress.h"
#include <errno.h>
#include <math.h>
+#include <inttypes.h>
#include <sys/param.h>

static bool hists__filter_entry_by_dso(struct hists *hists,
@@ -2454,6 +2456,85 @@ u64 hists__total_period(struct hists *hists)
hists->stats.total_period;
}

+int __hists__scnprintf_title(struct hists *hists, char *bf, size_t size, bool show_freq)
+{
+ char unit;
+ int printed;
+ const struct dso *dso = hists->dso_filter;
+ const struct thread *thread = hists->thread_filter;
+ int socket_id = hists->socket_filter;
+ unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
+ u64 nr_events = hists->stats.total_period;
+ struct perf_evsel *evsel = hists_to_evsel(hists);
+ const char *ev_name = perf_evsel__name(evsel);
+ char buf[512], sample_freq_str[64] = "";
+ size_t buflen = sizeof(buf);
+ char ref[30] = " show reference callgraph, ";
+ bool enable_ref = false;
+
+ if (symbol_conf.filter_relative) {
+ nr_samples = hists->stats.nr_non_filtered_samples;
+ nr_events = hists->stats.total_non_filtered_period;
+ }
+
+ if (perf_evsel__is_group_event(evsel)) {
+ struct perf_evsel *pos;
+
+ perf_evsel__group_desc(evsel, buf, buflen);
+ ev_name = buf;
+
+ for_each_group_member(pos, evsel) {
+ struct hists *pos_hists = evsel__hists(pos);
+
+ if (symbol_conf.filter_relative) {
+ nr_samples += pos_hists->stats.nr_non_filtered_samples;
+ nr_events += pos_hists->stats.total_non_filtered_period;
+ } else {
+ nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
+ nr_events += pos_hists->stats.total_period;
+ }
+ }
+ }
+
+ if (symbol_conf.show_ref_callgraph &&
+ strstr(ev_name, "call-graph=no"))
+ enable_ref = true;
+
+ if (show_freq)
+ scnprintf(sample_freq_str, sizeof(sample_freq_str), " %d Hz,", evsel->attr.sample_freq);
+
+ nr_samples = convert_unit(nr_samples, &unit);
+ printed = scnprintf(bf, size,
+ "Samples: %lu%c of event%s '%s',%s%sEvent count (approx.): %" PRIu64,
+ nr_samples, unit, evsel->nr_members > 1 ? "s" : "",
+ ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events);
+
+
+ if (hists->uid_filter_str)
+ printed += snprintf(bf + printed, size - printed,
+ ", UID: %s", hists->uid_filter_str);
+ if (thread) {
+ if (hists__has(hists, thread)) {
+ printed += scnprintf(bf + printed, size - printed,
+ ", Thread: %s(%d)",
+ (thread->comm_set ? thread__comm_str(thread) : ""),
+ thread->tid);
+ } else {
+ printed += scnprintf(bf + printed, size - printed,
+ ", Thread: %s",
+ (thread->comm_set ? thread__comm_str(thread) : ""));
+ }
+ }
+ if (dso)
+ printed += scnprintf(bf + printed, size - printed,
+ ", DSO: %s", dso->short_name);
+ if (socket_id > -1)
+ printed += scnprintf(bf + printed, size - printed,
+ ", Processor Socket: %d", socket_id);
+
+ return printed;
+}
+
int parse_filter_percentage(const struct option *opt __maybe_unused,
const char *arg, int unset __maybe_unused)
{
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index e869cad4d89f..fbabfd8a215d 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -61,6 +61,7 @@ enum hist_column {
HISTC_SRCLINE_TO,
HISTC_TRACE,
HISTC_SYM_SIZE,
+ HISTC_DSO_SIZE,
HISTC_NR_COLS, /* Last entry */
};

@@ -503,5 +504,11 @@ int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...);
int __hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp,
struct perf_hpp_list *hpp_list);
int hists__fprintf_headers(struct hists *hists, FILE *fp);
+int __hists__scnprintf_title(struct hists *hists, char *bf, size_t size, bool show_freq);
+
+static inline int hists__scnprintf_title(struct hists *hists, char *bf, size_t size)
+{
+ return __hists__scnprintf_title(hists, bf, size, true);
+}

#endif /* __PERF_HIST_H */
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index edeb7291c8e1..0e9bbe01b0ab 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -103,6 +103,10 @@ static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
return ip;
}

+static inline size_t map__size(const struct map *map)
+{
+ return map->end - map->start;
+}

/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
u64 map__rip_2objdump(struct map *map, u64 rip);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index c71ced7db152..f4a7a437ee87 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1591,7 +1591,7 @@ static void perf_session__warn_about_errors(const struct perf_session *session)
drop_rate = (double)stats->total_lost_samples /
(double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples);
if (drop_rate > 0.05) {
- ui__warning("Processed %" PRIu64 " samples and lost %3.2f%% samples!\n\n",
+ ui__warning("Processed %" PRIu64 " samples and lost %3.2f%%!\n\n",
stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples,
drop_rate * 100.0);
}
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index e8514f651865..26a68dfd8a4f 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1545,6 +1545,46 @@ struct sort_entry sort_sym_size = {
.se_width_idx = HISTC_SYM_SIZE,
};

+/* --sort dso_size */
+
+static int64_t _sort__dso_size_cmp(struct map *map_l, struct map *map_r)
+{
+ int64_t size_l = map_l != NULL ? map__size(map_l) : 0;
+ int64_t size_r = map_r != NULL ? map__size(map_r) : 0;
+
+ return size_l < size_r ? -1 :
+ size_l == size_r ? 0 : 1;
+}
+
+static int64_t
+sort__dso_size_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ return _sort__dso_size_cmp(right->ms.map, left->ms.map);
+}
+
+static int _hist_entry__dso_size_snprintf(struct map *map, char *bf,
+ size_t bf_size, unsigned int width)
+{
+ if (map && map->dso)
+ return repsep_snprintf(bf, bf_size, "%*d", width,
+ map__size(map));
+
+ return repsep_snprintf(bf, bf_size, "%*s", width, "unknown");
+}
+
+static int hist_entry__dso_size_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ return _hist_entry__dso_size_snprintf(he->ms.map, bf, size, width);
+}
+
+struct sort_entry sort_dso_size = {
+ .se_header = "DSO size",
+ .se_cmp = sort__dso_size_cmp,
+ .se_snprintf = hist_entry__dso_size_snprintf,
+ .se_width_idx = HISTC_DSO_SIZE,
+};
+

struct sort_dimension {
const char *name;
@@ -1569,6 +1609,7 @@ static struct sort_dimension common_sort_dimensions[] = {
DIM(SORT_TRANSACTION, "transaction", sort_transaction),
DIM(SORT_TRACE, "trace", sort_trace),
DIM(SORT_SYM_SIZE, "symbol_size", sort_sym_size),
+ DIM(SORT_DSO_SIZE, "dso_size", sort_dso_size),
DIM(SORT_CGROUP_ID, "cgroup_id", sort_cgroup_id),
};

diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index f5901c10a563..035b62e2c60b 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -220,6 +220,7 @@ enum sort_type {
SORT_TRANSACTION,
SORT_TRACE,
SORT_SYM_SIZE,
+ SORT_DSO_SIZE,
SORT_CGROUP_ID,

/* branch stack specific sort keys */
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 9496365da3d7..c9626c206208 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -11,8 +11,7 @@
#include <stdlib.h>
#include <stdarg.h>
#include <linux/compiler.h>
-#include <linux/types.h>
-#include "namespaces.h"
+#include <sys/types.h>

/* General helper functions */
void usage(const char *err) __noreturn;
@@ -26,6 +25,7 @@ static inline void *zalloc(size_t size)
#define zfree(ptr) ({ free(*ptr); *ptr = NULL; })

struct dirent;
+struct nsinfo;
struct strlist;

int mkdir_p(char *path, mode_t mode);
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