License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 07:07:57 -07:00
|
|
|
/* SPDX-License-Identifier: GPL-2.0 */
|
2009-09-24 09:02:18 -07:00
|
|
|
#ifndef __PERF_THREAD_H
|
|
|
|
|
#define __PERF_THREAD_H
|
|
|
|
|
|
2017-02-21 08:35:02 -07:00
|
|
|
#include <linux/refcount.h>
|
2013-09-11 07:56:44 -07:00
|
|
|
#include <linux/list.h>
|
2019-01-27 16:07:40 -07:00
|
|
|
#include <stdio.h>
|
2009-08-14 03:21:53 -07:00
|
|
|
#include <unistd.h>
|
2012-10-06 11:43:20 -07:00
|
|
|
#include <sys/types.h>
|
2019-01-27 03:31:39 -07:00
|
|
|
#include "srccode.h"
|
2019-01-27 16:07:40 -07:00
|
|
|
#include "symbol_conf.h"
|
2013-11-18 13:32:47 -07:00
|
|
|
#include <strlist.h>
|
2015-03-24 08:52:41 -07:00
|
|
|
#include <intlist.h>
|
2017-09-29 07:47:52 -07:00
|
|
|
#include "rwsem.h"
|
2020-03-19 13:25:11 -07:00
|
|
|
#include "callchain.h"
|
2023-06-08 16:28:04 -07:00
|
|
|
#include <internal/rc_check.h>
|
2009-08-14 03:21:53 -07:00
|
|
|
|
2019-01-27 16:07:40 -07:00
|
|
|
struct addr_location;
|
|
|
|
|
struct map;
|
2019-08-26 15:02:31 -07:00
|
|
|
struct perf_record_namespaces;
|
2014-10-30 07:09:42 -07:00
|
|
|
struct thread_stack;
|
2016-06-02 20:33:12 -07:00
|
|
|
struct unwind_libunwind_ops;
|
2014-10-30 07:09:42 -07:00
|
|
|
|
2020-03-19 13:25:10 -07:00
|
|
|
struct lbr_stitch {
|
perf callchain: Stitch LBR call stack
In LBR call stack mode, the depth of reconstructed LBR call stack limits
to the number of LBR registers.
For example, on skylake, the depth of reconstructed LBR call stack is
always <= 32.
# To display the perf.data header info, please use
# --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 6K of event 'cycles'
# Event count (approx.): 6487119731
#
# Children Self Command Shared Object Symbol
# ........ ........ ............... ..................
# ................................
99.97% 99.97% tchain_edit tchain_edit [.] f43
|
--99.64%--f11
f12
f13
f14
f15
f16
f17
f18
f19
f20
f21
f22
f23
f24
f25
f26
f27
f28
f29
f30
f31
f32
f33
f34
f35
f36
f37
f38
f39
f40
f41
f42
f43
For a call stack which is deeper than LBR limit, HW will overwrite the
LBR register with oldest branch. Only partial call stacks can be
reconstructed.
However, the overwritten LBRs may still be retrieved from previous
sample. At that moment, HW hasn't overwritten the LBR registers yet.
Perf tools can stitch those overwritten LBRs on current call stacks to
get a more complete call stack.
To determine if LBRs can be stitched, perf tools need to compare current
sample with previous sample.
- They should have identical LBR records (Same from, to and flags
values, and the same physical index of LBR registers).
- The searching starts from the base-of-stack of current sample.
Once perf determines to stitch the previous LBRs, the corresponding LBR
cursor nodes will be copied to 'lists'. The 'lists' is to track the LBR
cursor nodes which are going to be stitched.
When the stitching is over, the nodes will not be freed immediately.
They will be moved to 'free_lists'. Next stitching may reuse the space.
Both 'lists' and 'free_lists' will be freed when all samples are
processed.
Committer notes:
Fix the intel-pt.c initialization of the union with 'struct
branch_flags', that breaks the build with its unnamed union on older gcc
versions.
Uninline thread__free_stitch_list(), as it grew big and started dragging
includes to thread.h, so move it to thread.c where what it needs in
terms of headers are already there.
This fixes the build in several systems such as debian:experimental when
cross building to the MIPS32 architecture, i.e. in the other cases what
was needed was being included by sheer luck.
In file included from builtin-sched.c:11:
util/thread.h: In function 'thread__free_stitch_list':
util/thread.h:169:3: error: implicit declaration of function 'free' [-Werror=implicit-function-declaration]
169 | free(pos);
| ^~~~
util/thread.h:169:3: error: incompatible implicit declaration of built-in function 'free' [-Werror]
util/thread.h:19:1: note: include '<stdlib.h>' or provide a declaration of 'free'
18 | #include "callchain.h"
+++ |+#include <stdlib.h>
19 |
util/thread.h:174:3: error: incompatible implicit declaration of built-in function 'free' [-Werror]
174 | free(pos);
| ^~~~
util/thread.h:174:3: note: include '<stdlib.h>' or provide a declaration of 'free'
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pavel Gerasimov <pavel.gerasimov@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vitaly Slobodskoy <vitaly.slobodskoy@intel.com>
Link: http://lore.kernel.org/lkml/20200319202517.23423-13-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-19 13:25:12 -07:00
|
|
|
struct list_head lists;
|
|
|
|
|
struct list_head free_lists;
|
2020-03-19 13:25:10 -07:00
|
|
|
struct perf_sample prev_sample;
|
2020-03-19 13:25:11 -07:00
|
|
|
struct callchain_cursor_node *prev_lbr_cursor;
|
2024-08-07 22:46:43 -07:00
|
|
|
unsigned int prev_lbr_cursor_size;
|
2020-03-19 13:25:10 -07:00
|
|
|
};
|
|
|
|
|
|
2023-06-08 16:28:04 -07:00
|
|
|
DECLARE_RC_STRUCT(thread) {
|
2023-11-02 10:56:47 -07:00
|
|
|
/** @maps: mmaps associated with this thread. */
|
2019-11-25 18:07:43 -07:00
|
|
|
struct maps *maps;
|
2013-08-26 06:00:19 -07:00
|
|
|
pid_t pid_; /* Not all tools update this */
|
2023-11-02 10:56:47 -07:00
|
|
|
/** @tid: thread ID number unique to a machine. */
|
2013-07-04 06:20:31 -07:00
|
|
|
pid_t tid;
|
2023-11-02 10:56:47 -07:00
|
|
|
/** @ppid: parent process of the process this thread belongs to. */
|
2013-05-25 21:47:10 -07:00
|
|
|
pid_t ppid;
|
2014-07-22 06:17:24 -07:00
|
|
|
int cpu;
|
2022-07-11 02:31:55 -07:00
|
|
|
int guest_cpu; /* For QEMU thread */
|
2017-02-21 08:35:02 -07:00
|
|
|
refcount_t refcnt;
|
2023-11-02 10:56:47 -07:00
|
|
|
/**
|
|
|
|
|
* @exited: Has the thread had an exit event. Such threads are usually
|
|
|
|
|
* removed from the machine's threads but some events/tools require
|
|
|
|
|
* access to dead threads.
|
|
|
|
|
*/
|
|
|
|
|
bool exited;
|
2010-02-19 18:02:07 -07:00
|
|
|
bool comm_set;
|
perf tools: Elliminate alignment holes
perf_evsel:
Before:
/* size: 320, cachelines: 5, members: 35 */
/* sum members: 304, holes: 3, sum holes: 16 */
After:
/* size: 304, cachelines: 5, members: 35 */
/* last cacheline: 48 bytes */
perf_evlist:
Before:
/* size: 2544, cachelines: 40, members: 17 */
/* sum members: 2533, holes: 2, sum holes: 11 */
/* last cacheline: 48 bytes */
After:
/* size: 2536, cachelines: 40, members: 17 */
/* sum members: 2533, holes: 1, sum holes: 3 */
/* last cacheline: 40 bytes */
timechart:
Before:
/* size: 288, cachelines: 5, members: 21 */
/* sum members: 271, holes: 2, sum holes: 10 */
/* padding: 7 */
/* last cacheline: 32 bytes */
After:
/* size: 272, cachelines: 5, members: 21 */
/* sum members: 271, holes: 1, sum holes: 1 */
/* last cacheline: 16 bytes */
thread:
Before:
/* size: 112, cachelines: 2, members: 15 */
/* sum members: 101, holes: 2, sum holes: 11 */
/* last cacheline: 48 bytes */
After:
/* size: 104, cachelines: 2, members: 15 */
/* sum members: 101, holes: 1, sum holes: 3 */
/* last cacheline: 40 bytes */
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-a543w7zjl9yyrg9nkf1teukp@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-15 13:29:56 -07:00
|
|
|
int comm_len;
|
perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info
Introduce a new option to record PERF_RECORD_NAMESPACES events emitted
by the kernel when fork, clone, setns or unshare are invoked. And update
perf-record documentation with the new option to record namespace
events.
Committer notes:
Combined it with a later patch to allow printing it via 'perf report -D'
and be able to test the feature introduced in this patch. Had to move
here also perf_ns__name(), that was introduced in another later patch.
Also used PRIu64 and PRIx64 to fix the build in some enfironments wrt:
util/event.c:1129:39: error: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type 'long long unsigned int' [-Werror=format=]
ret += fprintf(fp, "%u/%s: %lu/0x%lx%s", idx
^
Testing it:
# perf record --namespaces -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 1.083 MB perf.data (423 samples) ]
#
# perf report -D
<SNIP>
3 2028902078892 0x115140 [0xa0]: PERF_RECORD_NAMESPACES 14783/14783 - nr_namespaces: 7
[0/net: 3/0xf0000081, 1/uts: 3/0xeffffffe, 2/ipc: 3/0xefffffff, 3/pid: 3/0xeffffffc,
4/user: 3/0xeffffffd, 5/mnt: 3/0xf0000000, 6/cgroup: 3/0xeffffffb]
0x1151e0 [0x30]: event: 9
.
. ... raw event: size 48 bytes
. 0000: 09 00 00 00 02 00 30 00 c4 71 82 68 0c 7f 00 00 ......0..q.h....
. 0010: a9 39 00 00 a9 39 00 00 94 28 fe 63 d8 01 00 00 .9...9...(.c....
. 0020: 03 00 00 00 00 00 00 00 ce c4 02 00 00 00 00 00 ................
<SNIP>
NAMESPACES events: 1
<SNIP>
#
Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/148891930386.25309.18412039920746995488.stgit@hbathini.in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-03-07 13:41:43 -07:00
|
|
|
struct list_head namespaces_list;
|
2017-09-29 07:47:52 -07:00
|
|
|
struct rw_semaphore namespaces_lock;
|
2013-09-11 07:56:44 -07:00
|
|
|
struct list_head comm_list;
|
2017-09-29 07:47:52 -07:00
|
|
|
struct rw_semaphore comm_lock;
|
2014-10-23 03:45:13 -07:00
|
|
|
u64 db_id;
|
perf kvm: Events analysis tool
Add 'perf kvm stat' support to analyze kvm vmexit/mmio/ioport smartly
Usage:
- kvm stat
run a command and gather performance counter statistics, it is the alias of
perf stat
- trace kvm events:
perf kvm stat record, or, if other tracepoints are interesting as well, we
can append the events like this:
perf kvm stat record -e timer:* -a
If many guests are running, we can track the specified guest by using -p or
--pid, -a is used to track events generated by all guests.
- show the result:
perf kvm stat report
The output example is following:
13005
13059
total 2 guests are running on the host
Then, track the guest whose pid is 13059:
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.253 MB perf.data.guest (~11065 samples) ]
See the vmexit events:
Analyze events for all VCPUs:
VM-EXIT Samples Samples% Time% Avg time
APIC_ACCESS 460 70.55% 0.01% 22.44us ( +- 1.75% )
HLT 93 14.26% 99.98% 832077.26us ( +- 10.42% )
EXTERNAL_INTERRUPT 64 9.82% 0.00% 35.35us ( +- 14.21% )
PENDING_INTERRUPT 24 3.68% 0.00% 9.29us ( +- 31.39% )
CR_ACCESS 7 1.07% 0.00% 8.12us ( +- 5.76% )
IO_INSTRUCTION 3 0.46% 0.00% 18.00us ( +- 11.79% )
EXCEPTION_NMI 1 0.15% 0.00% 5.83us ( +- -nan% )
Total Samples:652, Total events handled time:77396109.80us.
See the mmio events:
Analyze events for all VCPUs:
MMIO Access Samples Samples% Time% Avg time
0xfee00380:W 387 84.31% 79.28% 8.29us ( +- 3.32% )
0xfee00300:W 24 5.23% 9.96% 16.79us ( +- 1.97% )
0xfee00300:R 24 5.23% 7.83% 13.20us ( +- 3.00% )
0xfee00310:W 24 5.23% 2.93% 4.94us ( +- 3.84% )
Total Samples:459, Total events handled time:4044.59us.
See the ioport event:
Analyze events for all VCPUs:
IO Port Access Samples Samples% Time% Avg time
0xc050:POUT 3 100.00% 100.00% 13.75us ( +- 10.83% )
Total Samples:3, Total events handled time:41.26us.
And, --vcpu is used to track the specified vcpu and --key is used to sort the
result:
Analyze events for VCPU 0:
VM-EXIT Samples Samples% Time% Avg time
HLT 27 13.85% 99.97% 405790.24us ( +- 12.70% )
EXTERNAL_INTERRUPT 13 6.67% 0.00% 27.94us ( +- 22.26% )
APIC_ACCESS 146 74.87% 0.03% 21.69us ( +- 2.91% )
IO_INSTRUCTION 2 1.03% 0.00% 17.77us ( +- 20.56% )
CR_ACCESS 2 1.03% 0.00% 8.55us ( +- 6.47% )
PENDING_INTERRUPT 5 2.56% 0.00% 6.27us ( +- 3.94% )
Total Samples:195, Total events handled time:10959950.90us.
Signed-off-by: Dong Hao <haodong@linux.vnet.ibm.com>
Signed-off-by: Runzhen Wang <runzhen@linux.vnet.ibm.com>
[ Dong Hao <haodong@linux.vnet.ibm.com>
Runzhen Wang <runzhen@linux.vnet.ibm.com>:
- rebase it on current acme's tree
- fix the compiling-error on i386 ]
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: kvm@vger.kernel.org
Cc: Runzhen Wang <runzhen@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1347870675-31495-4-git-send-email-haodong@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-17 01:31:15 -07:00
|
|
|
|
|
|
|
|
void *priv;
|
2014-10-30 07:09:42 -07:00
|
|
|
struct thread_stack *ts;
|
2017-07-05 18:48:08 -07:00
|
|
|
struct nsinfo *nsinfo;
|
2018-12-03 17:18:48 -07:00
|
|
|
struct srccode_state srccode_state;
|
2018-09-20 11:05:39 -07:00
|
|
|
bool filter;
|
|
|
|
|
int filter_entry_depth;
|
2020-03-19 13:25:09 -07:00
|
|
|
|
|
|
|
|
/* LBR call stack stitch */
|
|
|
|
|
bool lbr_stitch_enable;
|
2020-03-19 13:25:10 -07:00
|
|
|
struct lbr_stitch *lbr_stitch;
|
2009-08-14 03:21:53 -07:00
|
|
|
};
|
|
|
|
|
|
2011-11-28 02:56:39 -07:00
|
|
|
struct machine;
|
perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info
Introduce a new option to record PERF_RECORD_NAMESPACES events emitted
by the kernel when fork, clone, setns or unshare are invoked. And update
perf-record documentation with the new option to record namespace
events.
Committer notes:
Combined it with a later patch to allow printing it via 'perf report -D'
and be able to test the feature introduced in this patch. Had to move
here also perf_ns__name(), that was introduced in another later patch.
Also used PRIu64 and PRIx64 to fix the build in some enfironments wrt:
util/event.c:1129:39: error: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type 'long long unsigned int' [-Werror=format=]
ret += fprintf(fp, "%u/%s: %lu/0x%lx%s", idx
^
Testing it:
# perf record --namespaces -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 1.083 MB perf.data (423 samples) ]
#
# perf report -D
<SNIP>
3 2028902078892 0x115140 [0xa0]: PERF_RECORD_NAMESPACES 14783/14783 - nr_namespaces: 7
[0/net: 3/0xf0000081, 1/uts: 3/0xeffffffe, 2/ipc: 3/0xefffffff, 3/pid: 3/0xeffffffc,
4/user: 3/0xeffffffd, 5/mnt: 3/0xf0000000, 6/cgroup: 3/0xeffffffb]
0x1151e0 [0x30]: event: 9
.
. ... raw event: size 48 bytes
. 0000: 09 00 00 00 02 00 30 00 c4 71 82 68 0c 7f 00 00 ......0..q.h....
. 0010: a9 39 00 00 a9 39 00 00 94 28 fe 63 d8 01 00 00 .9...9...(.c....
. 0020: 03 00 00 00 00 00 00 00 ce c4 02 00 00 00 00 00 ................
<SNIP>
NAMESPACES events: 1
<SNIP>
#
Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/148891930386.25309.18412039920746995488.stgit@hbathini.in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-03-07 13:41:43 -07:00
|
|
|
struct namespaces;
|
2013-09-13 00:28:57 -07:00
|
|
|
struct comm;
|
2010-03-25 15:58:58 -07:00
|
|
|
|
2013-08-26 06:00:19 -07:00
|
|
|
struct thread *thread__new(pid_t pid, pid_t tid);
|
2019-11-25 17:58:33 -07:00
|
|
|
int thread__init_maps(struct thread *thread, struct machine *machine);
|
2013-11-05 11:32:36 -07:00
|
|
|
void thread__delete(struct thread *thread);
|
2015-03-02 18:21:35 -07:00
|
|
|
|
2023-07-19 11:23:52 -07:00
|
|
|
void thread__set_priv_destructor(void (*destructor)(void *priv));
|
|
|
|
|
|
2015-03-02 18:21:35 -07:00
|
|
|
struct thread *thread__get(struct thread *thread);
|
|
|
|
|
void thread__put(struct thread *thread);
|
|
|
|
|
|
|
|
|
|
static inline void __thread__zput(struct thread **thread)
|
|
|
|
|
{
|
|
|
|
|
thread__put(*thread);
|
|
|
|
|
*thread = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define thread__zput(thread) __thread__zput(&thread)
|
|
|
|
|
|
2019-05-26 23:11:49 -07:00
|
|
|
struct namespaces *thread__namespaces(struct thread *thread);
|
perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info
Introduce a new option to record PERF_RECORD_NAMESPACES events emitted
by the kernel when fork, clone, setns or unshare are invoked. And update
perf-record documentation with the new option to record namespace
events.
Committer notes:
Combined it with a later patch to allow printing it via 'perf report -D'
and be able to test the feature introduced in this patch. Had to move
here also perf_ns__name(), that was introduced in another later patch.
Also used PRIu64 and PRIx64 to fix the build in some enfironments wrt:
util/event.c:1129:39: error: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type 'long long unsigned int' [-Werror=format=]
ret += fprintf(fp, "%u/%s: %lu/0x%lx%s", idx
^
Testing it:
# perf record --namespaces -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 1.083 MB perf.data (423 samples) ]
#
# perf report -D
<SNIP>
3 2028902078892 0x115140 [0xa0]: PERF_RECORD_NAMESPACES 14783/14783 - nr_namespaces: 7
[0/net: 3/0xf0000081, 1/uts: 3/0xeffffffe, 2/ipc: 3/0xefffffff, 3/pid: 3/0xeffffffc,
4/user: 3/0xeffffffd, 5/mnt: 3/0xf0000000, 6/cgroup: 3/0xeffffffb]
0x1151e0 [0x30]: event: 9
.
. ... raw event: size 48 bytes
. 0000: 09 00 00 00 02 00 30 00 c4 71 82 68 0c 7f 00 00 ......0..q.h....
. 0010: a9 39 00 00 a9 39 00 00 94 28 fe 63 d8 01 00 00 .9...9...(.c....
. 0020: 03 00 00 00 00 00 00 00 ce c4 02 00 00 00 00 00 ................
<SNIP>
NAMESPACES events: 1
<SNIP>
#
Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/148891930386.25309.18412039920746995488.stgit@hbathini.in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-03-07 13:41:43 -07:00
|
|
|
int thread__set_namespaces(struct thread *thread, u64 timestamp,
|
2019-08-26 15:02:31 -07:00
|
|
|
struct perf_record_namespaces *event);
|
perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info
Introduce a new option to record PERF_RECORD_NAMESPACES events emitted
by the kernel when fork, clone, setns or unshare are invoked. And update
perf-record documentation with the new option to record namespace
events.
Committer notes:
Combined it with a later patch to allow printing it via 'perf report -D'
and be able to test the feature introduced in this patch. Had to move
here also perf_ns__name(), that was introduced in another later patch.
Also used PRIu64 and PRIx64 to fix the build in some enfironments wrt:
util/event.c:1129:39: error: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type 'long long unsigned int' [-Werror=format=]
ret += fprintf(fp, "%u/%s: %lu/0x%lx%s", idx
^
Testing it:
# perf record --namespaces -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 1.083 MB perf.data (423 samples) ]
#
# perf report -D
<SNIP>
3 2028902078892 0x115140 [0xa0]: PERF_RECORD_NAMESPACES 14783/14783 - nr_namespaces: 7
[0/net: 3/0xf0000081, 1/uts: 3/0xeffffffe, 2/ipc: 3/0xefffffff, 3/pid: 3/0xeffffffc,
4/user: 3/0xeffffffd, 5/mnt: 3/0xf0000000, 6/cgroup: 3/0xeffffffb]
0x1151e0 [0x30]: event: 9
.
. ... raw event: size 48 bytes
. 0000: 09 00 00 00 02 00 30 00 c4 71 82 68 0c 7f 00 00 ......0..q.h....
. 0010: a9 39 00 00 a9 39 00 00 94 28 fe 63 d8 01 00 00 .9...9...(.c....
. 0020: 03 00 00 00 00 00 00 00 ce c4 02 00 00 00 00 00 ................
<SNIP>
NAMESPACES events: 1
<SNIP>
#
Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/148891930386.25309.18412039920746995488.stgit@hbathini.in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-03-07 13:41:43 -07:00
|
|
|
|
2014-07-30 23:00:44 -07:00
|
|
|
int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
|
|
|
|
|
bool exec);
|
|
|
|
|
static inline int thread__set_comm(struct thread *thread, const char *comm,
|
|
|
|
|
u64 timestamp)
|
|
|
|
|
{
|
|
|
|
|
return __thread__set_comm(thread, comm, timestamp, false);
|
|
|
|
|
}
|
|
|
|
|
|
2016-04-26 08:32:50 -07:00
|
|
|
int thread__set_comm_from_proc(struct thread *thread);
|
|
|
|
|
|
2013-11-05 11:32:36 -07:00
|
|
|
int thread__comm_len(struct thread *thread);
|
2023-06-08 16:28:00 -07:00
|
|
|
struct comm *thread__comm(struct thread *thread);
|
|
|
|
|
struct comm *thread__exec_comm(struct thread *thread);
|
2019-05-26 23:11:49 -07:00
|
|
|
const char *thread__comm_str(struct thread *thread);
|
2016-06-02 20:33:13 -07:00
|
|
|
int thread__insert_map(struct thread *thread, struct map *map);
|
2018-10-30 22:24:04 -07:00
|
|
|
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);
|
2012-12-07 13:39:39 -07:00
|
|
|
size_t thread__fprintf(struct thread *thread, FILE *fp);
|
2009-09-24 09:02:18 -07:00
|
|
|
|
2016-05-23 17:52:24 -07:00
|
|
|
struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
|
|
|
|
|
|
2018-04-26 05:34:37 -07:00
|
|
|
struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
|
|
|
|
|
struct addr_location *al);
|
2018-11-06 14:07:10 -07:00
|
|
|
struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
|
|
|
|
|
struct addr_location *al);
|
2010-01-14 18:45:29 -07:00
|
|
|
|
2018-04-25 14:16:53 -07:00
|
|
|
struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
|
|
|
|
|
u64 addr, struct addr_location *al);
|
2018-11-06 14:07:10 -07:00
|
|
|
struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
|
|
|
|
|
u64 addr, struct addr_location *al);
|
2013-06-07 15:22:12 -07:00
|
|
|
|
2018-04-25 13:58:03 -07:00
|
|
|
void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
|
2014-03-11 12:16:49 -07:00
|
|
|
struct addr_location *al);
|
|
|
|
|
|
2019-03-06 13:55:35 -07:00
|
|
|
int thread__memcpy(struct thread *thread, struct machine *machine,
|
|
|
|
|
void *buf, u64 ip, int len, bool *is64bit);
|
|
|
|
|
|
2023-06-08 16:28:00 -07:00
|
|
|
static inline struct maps *thread__maps(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->maps;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_maps(struct thread *thread, struct maps *maps)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->maps = maps;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline pid_t thread__pid(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->pid_;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_pid(struct thread *thread, pid_t pid_)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->pid_ = pid_;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline pid_t thread__tid(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->tid;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_tid(struct thread *thread, pid_t tid)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->tid = tid;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline pid_t thread__ppid(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->ppid;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_ppid(struct thread *thread, pid_t ppid)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->ppid = ppid;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int thread__cpu(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->cpu;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_cpu(struct thread *thread, int cpu)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->cpu = cpu;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int thread__guest_cpu(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->guest_cpu;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_guest_cpu(struct thread *thread, int guest_cpu)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->guest_cpu = guest_cpu;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline refcount_t *thread__refcnt(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return &RC_CHK_ACCESS(thread)->refcnt;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
2023-11-02 10:56:47 -07:00
|
|
|
static inline void thread__set_exited(struct thread *thread, bool exited)
|
|
|
|
|
{
|
|
|
|
|
RC_CHK_ACCESS(thread)->exited = exited;
|
|
|
|
|
}
|
|
|
|
|
|
2023-06-08 16:28:00 -07:00
|
|
|
static inline bool thread__comm_set(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->comm_set;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_comm_set(struct thread *thread, bool set)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->comm_set = set;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int thread__var_comm_len(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->comm_len;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_comm_len(struct thread *thread, int len)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->comm_len = len;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline struct list_head *thread__namespaces_list(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return &RC_CHK_ACCESS(thread)->namespaces_list;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int thread__namespaces_list_empty(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return list_empty(&RC_CHK_ACCESS(thread)->namespaces_list);
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline struct rw_semaphore *thread__namespaces_lock(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return &RC_CHK_ACCESS(thread)->namespaces_lock;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline struct list_head *thread__comm_list(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return &RC_CHK_ACCESS(thread)->comm_list;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline struct rw_semaphore *thread__comm_lock(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return &RC_CHK_ACCESS(thread)->comm_lock;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline u64 thread__db_id(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->db_id;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_db_id(struct thread *thread, u64 db_id)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->db_id = db_id;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
2013-06-07 15:22:12 -07:00
|
|
|
static inline void *thread__priv(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->priv;
|
2013-06-07 15:22:12 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_priv(struct thread *thread, void *p)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->priv = p;
|
2013-06-07 15:22:12 -07:00
|
|
|
}
|
2013-11-18 13:32:47 -07:00
|
|
|
|
2023-06-08 16:28:00 -07:00
|
|
|
static inline struct thread_stack *thread__ts(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->ts;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_ts(struct thread *thread, struct thread_stack *ts)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->ts = ts;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline struct nsinfo *thread__nsinfo(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->nsinfo;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline struct srccode_state *thread__srccode_state(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return &RC_CHK_ACCESS(thread)->srccode_state;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline bool thread__filter(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->filter;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_filter(struct thread *thread, bool filter)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->filter = filter;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int thread__filter_entry_depth(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->filter_entry_depth;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_filter_entry_depth(struct thread *thread, int depth)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->filter_entry_depth = depth;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline bool thread__lbr_stitch_enable(const struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->lbr_stitch_enable;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_lbr_stitch_enable(struct thread *thread, bool en)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->lbr_stitch_enable = en;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline struct lbr_stitch *thread__lbr_stitch(struct thread *thread)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
return RC_CHK_ACCESS(thread)->lbr_stitch;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void thread__set_lbr_stitch(struct thread *thread, struct lbr_stitch *lbrs)
|
|
|
|
|
{
|
2023-06-08 16:28:04 -07:00
|
|
|
RC_CHK_ACCESS(thread)->lbr_stitch = lbrs;
|
2023-06-08 16:28:00 -07:00
|
|
|
}
|
|
|
|
|
|
2013-11-18 13:32:47 -07:00
|
|
|
static inline bool thread__is_filtered(struct thread *thread)
|
|
|
|
|
{
|
|
|
|
|
if (symbol_conf.comm_list &&
|
|
|
|
|
!strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
2015-03-24 08:52:41 -07:00
|
|
|
if (symbol_conf.pid_list &&
|
2023-06-08 16:28:00 -07:00
|
|
|
!intlist__has_entry(symbol_conf.pid_list, thread__pid(thread))) {
|
2015-03-24 08:52:41 -07:00
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (symbol_conf.tid_list &&
|
2023-06-08 16:28:00 -07:00
|
|
|
!intlist__has_entry(symbol_conf.tid_list, thread__tid(thread))) {
|
2015-03-24 08:52:41 -07:00
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
2013-11-18 13:32:47 -07:00
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
perf callchain: Stitch LBR call stack
In LBR call stack mode, the depth of reconstructed LBR call stack limits
to the number of LBR registers.
For example, on skylake, the depth of reconstructed LBR call stack is
always <= 32.
# To display the perf.data header info, please use
# --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 6K of event 'cycles'
# Event count (approx.): 6487119731
#
# Children Self Command Shared Object Symbol
# ........ ........ ............... ..................
# ................................
99.97% 99.97% tchain_edit tchain_edit [.] f43
|
--99.64%--f11
f12
f13
f14
f15
f16
f17
f18
f19
f20
f21
f22
f23
f24
f25
f26
f27
f28
f29
f30
f31
f32
f33
f34
f35
f36
f37
f38
f39
f40
f41
f42
f43
For a call stack which is deeper than LBR limit, HW will overwrite the
LBR register with oldest branch. Only partial call stacks can be
reconstructed.
However, the overwritten LBRs may still be retrieved from previous
sample. At that moment, HW hasn't overwritten the LBR registers yet.
Perf tools can stitch those overwritten LBRs on current call stacks to
get a more complete call stack.
To determine if LBRs can be stitched, perf tools need to compare current
sample with previous sample.
- They should have identical LBR records (Same from, to and flags
values, and the same physical index of LBR registers).
- The searching starts from the base-of-stack of current sample.
Once perf determines to stitch the previous LBRs, the corresponding LBR
cursor nodes will be copied to 'lists'. The 'lists' is to track the LBR
cursor nodes which are going to be stitched.
When the stitching is over, the nodes will not be freed immediately.
They will be moved to 'free_lists'. Next stitching may reuse the space.
Both 'lists' and 'free_lists' will be freed when all samples are
processed.
Committer notes:
Fix the intel-pt.c initialization of the union with 'struct
branch_flags', that breaks the build with its unnamed union on older gcc
versions.
Uninline thread__free_stitch_list(), as it grew big and started dragging
includes to thread.h, so move it to thread.c where what it needs in
terms of headers are already there.
This fixes the build in several systems such as debian:experimental when
cross building to the MIPS32 architecture, i.e. in the other cases what
was needed was being included by sheer luck.
In file included from builtin-sched.c:11:
util/thread.h: In function 'thread__free_stitch_list':
util/thread.h:169:3: error: implicit declaration of function 'free' [-Werror=implicit-function-declaration]
169 | free(pos);
| ^~~~
util/thread.h:169:3: error: incompatible implicit declaration of built-in function 'free' [-Werror]
util/thread.h:19:1: note: include '<stdlib.h>' or provide a declaration of 'free'
18 | #include "callchain.h"
+++ |+#include <stdlib.h>
19 |
util/thread.h:174:3: error: incompatible implicit declaration of built-in function 'free' [-Werror]
174 | free(pos);
| ^~~~
util/thread.h:174:3: note: include '<stdlib.h>' or provide a declaration of 'free'
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pavel Gerasimov <pavel.gerasimov@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vitaly Slobodskoy <vitaly.slobodskoy@intel.com>
Link: http://lore.kernel.org/lkml/20200319202517.23423-13-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-19 13:25:12 -07:00
|
|
|
void thread__free_stitch_list(struct thread *thread);
|
2020-03-19 13:25:10 -07:00
|
|
|
|
2022-10-27 12:54:46 -07:00
|
|
|
void thread__resolve(struct thread *thread, struct addr_location *al,
|
|
|
|
|
struct perf_sample *sample);
|
|
|
|
|
|
2009-09-24 09:02:18 -07:00
|
|
|
#endif /* __PERF_THREAD_H */
|