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OpenCloudOS-Kernel/tools/perf
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Adrian Hunter faf59ec8c3 perf record: Fix synthesis failure warnings 
Some calls to synthesis functions set err < 0 but only warn about the
failure and continue.  However they do not set err back to zero, relying
on subsequent code to do that.

That changed with the introduction of option --synth. When --synth=no
subsequent functions that set err back to zero are not called.

Fix by setting err = 0 in those cases.

Example:

 Before:

   $ perf record --no-bpf-event --synth=all -o /tmp/huh uname
   Couldn't synthesize bpf events.
   Linux
   [ perf record: Woken up 1 times to write data ]
   [ perf record: Captured and wrote 0.014 MB /tmp/huh (7 samples) ]
   $ perf record --no-bpf-event --synth=no -o /tmp/huh uname
   Couldn't synthesize bpf events.

 After:

   $ perf record --no-bpf-event --synth=no -o /tmp/huh uname
   Couldn't synthesize bpf events.
   Linux
   [ perf record: Woken up 1 times to write data ]
   [ perf record: Captured and wrote 0.014 MB /tmp/huh (7 samples) ]

Fixes: 41b740b6e8 ("perf record: Add --synth option")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220907162458.72817-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 		2022-09-08 15:57:37 -03:00
..
Documentation perf docs: Update the documentation for the save_type filter 2022-08-27 11:55:17 -03:00
arch perf pmu-events: Hide the pmu_events 2022-08-13 15:02:08 -03:00
bench Merge remote-tracking branch 'torvalds/master' into perf/core 2022-05-23 09:32:49 -03:00
dlfilters perf dlfilter dlfilter-show-cycles: Fix types for print format 2022-09-08 12:17:45 -03:00
examples/bpf perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
include perf dlfilter: Add machine_pid and vcpu 2022-07-20 11:08:13 -03:00
jvmti perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
pmu-events perf vendor events: Update events for snowridgex 2022-08-13 15:08:31 -03:00
python perf python: Convert tracepoint.py example to python3 2022-04-01 16:19:35 -03:00
scripts Merge remote-tracking branch 'torvalds/master' into perf/core 2022-08-01 08:59:31 -03:00
tests perf test: Stat test for repeat with a weak group 2022-08-27 11:55:17 -03:00
trace perf beauty: Update copy of linux/socket.h with the kernel sources 2022-08-19 15:30:33 -03:00
ui perf annotate: Avoid TUI crash when navigating in the annotation of recursive functions 2022-01-10 15:47:30 -03:00
util perf genelf: Switch deprecated openssl MD5_* functions to new EVP API 2022-09-06 09:45:23 -03:00
.gitignore perf tools: Delete perf-with-kcore.sh script 2022-04-27 20:11:26 -03:00
Build perf kwork: New tool to trace time properties of kernel work (such as softirq, and workqueue) 2022-07-26 16:01:24 -03:00
CREDITS
…
MANIFEST perf MANIFEST: Add bpftool files to allow building with BUILD_BPF_SKEL=1 2021-11-07 15:39:28 -03:00
Makefile perf tools: Add a build-test variant to use in builds from a tarball 2021-04-20 08:43:58 -03:00
Makefile.config perf python: Fix build when PYTHON_CONFIG is user supplied 2022-08-27 11:55:16 -03:00
Makefile.perf perf tools: Don't install data files with x permissions 2022-09-08 15:55:56 -03:00
builtin-annotate.c perf gtk: Only support --gtk if compiled in 2022-07-20 11:09:11 -03:00
builtin-bench.c perf bench: Add breakpoint benchmarks 2022-05-13 11:00:38 -03:00
builtin-buildid-cache.c perf record: Disable debuginfod by default 2022-01-15 17:41:25 -03:00
builtin-buildid-list.c perf buildid-list: Add a "-m" option to show kernel and modules build-ids 2022-07-18 16:35:34 -03:00
builtin-c2c.c perf c2c: Prevent potential memory leak in c2c_he_zalloc() 2022-09-06 09:45:23 -03:00
builtin-config.c
…
builtin-daemon.c perf daemon: Remove duplicate sys/file.h include 2021-10-08 15:14:50 -03:00
builtin-data.c perf data: Don't mention --to-ctf if it's not supported 2022-02-22 21:23:08 -03:00
builtin-diff.c perf tools: Remove repipe argument from perf_session__new() 2021-08-02 10:06:51 -03:00
builtin-evlist.c perf tools: Remove repipe argument from perf_session__new() 2021-08-02 10:06:51 -03:00
builtin-ftrace.c perf evlist: Rename cpus to user_requested_cpus 2022-04-01 16:19:35 -03:00
builtin-help.c
…
builtin-inject.c perf inject: Fix spelling mistake "theads" -> "threads" 2022-07-26 16:31:54 -03:00
builtin-kallsyms.c
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builtin-kmem.c perf tools: Enhance the matching of sub-commands abbreviations 2022-03-26 10:55:57 -03:00
builtin-kvm.c perf kvm: Fix subcommand matching error 2022-08-10 10:44:02 -03:00
builtin-kwork.c perf kwork: Implement BPF trace 2022-07-26 16:31:54 -03:00
builtin-list.c perf parse-events: Break out tracepoint and printing 2022-08-02 16:32:26 -03:00
builtin-lock.c perf lock: Remove redundant word 'contention' in help message 2022-09-08 15:23:42 -03:00
builtin-mem.c perf tools: Enhance the matching of sub-commands abbreviations 2022-03-26 10:55:57 -03:00
builtin-probe.c perf namespaces: Add functions to access nsinfo 2022-02-11 14:31:22 -03:00
builtin-record.c perf record: Fix synthesis failure warnings 2022-09-08 15:57:37 -03:00
builtin-report.c perf gtk: Only support --gtk if compiled in 2022-07-20 11:09:11 -03:00
builtin-sched.c perf sched: Fix memory leaks in __cmd_record detected with -fsanitize=address 2022-08-27 11:55:17 -03:00
builtin-script.c perf script: Fix Cannot print 'iregs' field for hybrid systems 2022-09-08 15:27:39 -03:00
builtin-stat.c perf stat: Fix L2 Topdown metrics disappear for raw events 2022-09-02 13:52:18 -03:00
builtin-timechart.c perf parse-events: Break out tracepoint and printing 2022-08-02 16:32:26 -03:00
builtin-top.c perf evlist: Rename cpus to user_requested_cpus 2022-04-01 16:19:35 -03:00
builtin-trace.c perf trace: Fix double word in comments 2022-08-12 16:44:56 -03:00
builtin-version.c perf version: Add HAVE_DEBUGINFOD_SUPPORT to built-in features 2022-04-20 13:32:09 -03:00
builtin.h perf kwork: New tool to trace time properties of kernel work (such as softirq, and workqueue) 2022-07-26 16:01:24 -03:00
check-headers.sh tools arm64: Import cputype.h 2022-03-26 10:53:45 -03:00
command-list.txt perf kwork: New tool to trace time properties of kernel work (such as softirq, and workqueue) 2022-07-26 16:01:24 -03:00
design.txt perf design.txt: Synchronize the definition of enum perf_hw_id with code 2021-11-13 18:11:50 -03:00
perf-archive.sh perf archive: Fix filtering of empty build-ids 2021-03-06 16:54:31 -03:00
perf-completion.sh
…
perf-iostat.sh perf stat: Enable iostat mode for x86 platforms 2021-04-20 08:40:20 -03:00
perf-read-vdso.c
…
perf-sys.h perf tests: Call test_attr__open() directly 2020-09-10 11:55:37 -03:00
perf.c perf kwork: New tool to trace time properties of kernel work (such as softirq, and workqueue) 2022-07-26 16:01:24 -03:00
perf.h
…