AuxXxilium/linux_dsm_epyc7002
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9e3b6ec173
linux_dsm_epyc7002/tools/perf/util
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Yunlong Song 9e3b6ec173 perf evlist: Support using -f to override perf.data file ownership 
Enable perf evlist to use perf.data when it is not owned by current user
or root.

Example:

 # perf record ls
 # chown Yunlong.Song:Yunlong.Song perf.data
 # ls -al perf.data
 -rw------- 1 Yunlong.Song Yunlong.Song 28260 Apr  2 10:18 perf.data
 # id
 uid=0(root) gid=0(root) groups=0(root),64(pkcs11)

Before this patch:

 # perf evlist
 File perf.data not owned by current user or root (use -f to override)
 # perf evlist -f
   Error: unknown switch `f'

  usage: perf evlist [<options>]

     -i, --input <file>    Input file name
     -F, --freq            Show the sample frequency
     -v, --verbose         Show all event attr details
     -g, --group           Show event group information

As shown above, the -f option does not work at all.

After this patch:

 # perf evlist
 File perf.data not owned by current user or root (use -f to override)
 # perf evlist -f
 cycles

As shown above, the -f option really works now.

Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1427982439-27388-2-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02 13:18:45 -03:00
..
include tools: Remove bitops/hweight usage of bits in tools/perf 2015-01-16 17:49:29 -03:00
scripting-engines perf db-export: No need to have ->thread twice in struct export_sample 2015-04-02 13:18:43 -03:00
abspath.c
alias.c
annotate.c Merge branch 'perf/urgent' into perf/core, to pick up fixes and to refresh the tree 2015-03-27 09:46:03 +01:00
annotate.h perf tools: Fix segfault for symbol annotation on TUI 2015-01-16 17:49:29 -03:00
bitmap.c
Build perf tools: Add lzma decompression support for kernel module 2015-03-21 14:53:40 -03:00
build-id.c perf tools: Fix race in build_id_cache__add_s() 2015-03-20 17:49:50 -03:00
build-id.h perf buildid-cache: Add --purge FILE to remove all caches of FILE 2015-02-27 15:52:33 -03:00
cache.h perf tools: Make perf aware of tracefs 2015-02-11 12:37:08 -03:00
callchain.c perf tools: Enable LBR call stack support 2015-02-18 17:16:17 +01:00
callchain.h perf tools: Enable LBR call stack support 2015-02-18 17:16:17 +01:00
cgroup.c
cgroup.h
cloexec.c perf tools: Work around lack of sched_getcpu in glibc < 2.6. 2015-03-24 12:08:07 -03:00
cloexec.h perf tools: Work around lack of sched_getcpu in glibc < 2.6. 2015-03-24 12:08:07 -03:00
color.c perf tools: Remove some unused functions from color.c 2015-01-21 13:24:32 -03:00
color.h perf tools: Remove some unused functions from color.c 2015-01-21 13:24:32 -03:00
comm.c perf tools: Identify which comms are from exec 2014-08-13 19:23:08 -03:00
comm.h perf tools: Add facility to export data in database-friendly way 2014-10-29 10:32:49 -02:00
config.c perf tools: Add --buildid-dir option to set cache directory 2014-12-09 09:14:35 -03:00
cpumap.c perf tools: Use cpu/possible instead of cpu/kernel_max 2014-04-22 17:39:16 +02:00
cpumap.h perf tools: Allow ability to map cpus to nodes easily 2014-04-22 17:39:12 +02:00
ctype.c
data-convert-bt.c perf data: Add tracepoint events fields CTF conversion support 2015-03-13 07:47:49 -03:00
data-convert-bt.h perf data: Add perf data to CTF conversion support 2015-02-25 16:13:12 -03:00
data.c perf util: Replace strerror with strerror_r for thread-safety 2014-08-15 10:58:35 -03:00
data.h
db-export.c perf db-export: No need to have ->thread twice in struct export_sample 2015-04-02 13:18:43 -03:00
db-export.h perf db-export: No need to have ->thread twice in struct export_sample 2015-04-02 13:18:43 -03:00
debug.c perf data: Add perf data to CTF conversion support 2015-02-25 16:13:12 -03:00
debug.h perf data: Add perf data to CTF conversion support 2015-02-25 16:13:12 -03:00
dso.c perf symbols: Save DSO loading errno to better report errors 2015-03-24 12:08:43 -03:00
dso.h perf symbols: Save DSO loading errno to better report errors 2015-03-24 12:08:43 -03:00
dwarf-aux.c perf probe: Fix to track down unnamed union/structure members 2015-04-02 13:18:44 -03:00
dwarf-aux.h perf probe: Fix to handle optimized not-inlined functions 2015-02-06 11:46:36 +01:00
environment.c
event.c perf tools: Fix ppid for synthesized fork events 2015-03-31 17:52:30 -03:00
event.h perf ordered_samples: Remove references to perf_{evlist,tool} and machines 2015-03-31 17:52:32 -03:00
evlist.c perf evlist: Return the first evsel with an invalid filter in apply_filters() 2015-03-26 10:52:28 -03:00
evlist.h perf evlist: Return the first evsel with an invalid filter in apply_filters() 2015-03-26 10:52:28 -03:00
evsel.c perf timechart: Fix SIBGUS error on sparc64 2015-03-26 10:52:28 -03:00
evsel.h perf evlist: Support using -f to override perf.data file ownership 2015-04-02 13:18:45 -03:00
exec_cmd.c
exec_cmd.h
find-vdso-map.c perf tools: Build programs to copy 32-bit compatibility 2014-10-29 10:32:48 -02:00
generate-cmdlist.sh
header.c perf tools: Remove compressed argument from is_kernel_module 2015-03-23 12:39:30 -03:00
header.h perf build-id: Move build-id related functions to util/build-id.c 2014-11-05 10:14:07 -03:00
help.c
help.h
hist.c perf hists: Remove hist_entry->used, not used anymore 2015-03-17 17:18:58 -03:00
hist.h perf hists browser: Allow annotating entries in callchains 2015-03-17 18:27:28 -03:00
intlist.c
intlist.h
kvm-stat.h perf kvm stat report: Save pid string in opts.target.pid 2014-09-17 17:08:07 -03:00
levenshtein.c
levenshtein.h
lzma.c perf tools: Add lzma decompression support for kernel module 2015-03-21 14:53:40 -03:00
machine.c perf callchain: Fix kernel symbol resolution by remembering the cpumode 2015-03-31 17:52:17 -03:00
machine.h perf tools: Reference count struct thread 2015-03-03 00:17:08 -03:00
map.c perf callchain: Make get_srcline fall back to sym+offset 2014-11-24 18:03:47 -03:00
map.h perf symbols: Introduce 'for' method to iterate over the symbols with a given name 2015-01-21 10:06:15 -03:00
ordered-events.c perf ordered_samples: Remove references to perf_{evlist,tool} and machines 2015-03-31 17:52:32 -03:00
ordered-events.h perf ordered_samples: Remove references to perf_{evlist,tool} and machines 2015-03-31 17:52:32 -03:00
pager.c perf tools: Add cat as fallback pager 2014-05-21 11:48:33 +02:00
parse-events.c perf list: Clean up the printing functions of hardware/software events 2015-02-27 15:52:18 -03:00
parse-events.h perf list: Clean up the printing functions of hardware/software events 2015-02-27 15:52:18 -03:00
parse-events.l perf tools: allow user to specify hardware breakpoint bp_len 2014-12-03 15:14:29 +01:00
parse-events.y perf tools: allow user to specify hardware breakpoint bp_len 2014-12-03 15:14:29 +01:00
parse-options.c perf report: Don't allow empty argument for '-t'. 2015-03-19 13:53:28 -03:00
parse-options.h perf report: Don't allow empty argument for '-t'. 2015-03-19 13:53:28 -03:00
path.c
perf_regs.c perf tools: Cache register accesses for unwind processing 2014-06-12 16:53:19 +02:00
perf_regs.h perf tools: Cache register accesses for unwind processing 2014-06-12 16:53:19 +02:00
PERF-VERSION-GEN
pmu.c perf tools: Extend format_alias() to include event parameters 2015-01-21 13:24:33 -03:00
pmu.h perf tools: Add snapshot format file parsing 2014-11-24 18:03:51 -03:00
pmu.l
pmu.y
probe-event.c perf probe: Fix to get ummapped symbol address on kernel 2015-03-24 12:07:04 -03:00
probe-event.h perf probe: Do not access kallsyms when analyzing user binaries 2014-09-17 18:01:14 -03:00
probe-finder.c perf probe: Fix to track down unnamed union/structure members 2015-04-02 13:18:44 -03:00
probe-finder.h perf probe: Support distro-style debuginfo for uprobe 2014-02-18 09:38:44 -03:00
pstack.c perf tools: Move pr_* debug macros into debug object 2014-07-17 12:58:39 -03:00
pstack.h
python-ext-sources perf tools: Remove api fs object from python build 2015-02-12 11:22:01 -03:00
python.c perf tools: Remove EOL whitespaces 2015-01-21 13:24:31 -03:00
quote.c
quote.h
rblist.c
rblist.h
record.c perf tools: Use sysctl__read_int instead of ad-hoc copies 2014-12-11 17:53:04 -03:00
run-command.c perf util: Replace strerror with strerror_r for thread-safety 2014-08-15 10:58:35 -03:00
run-command.h
session.c perf ordered_samples: Remove references to perf_{evlist,tool} and machines 2015-03-31 17:52:32 -03:00
session.h perf ordered_samples: Remove references to perf_{evlist,tool} and machines 2015-03-31 17:52:32 -03:00
setup.py tools lib api: Rename libapikfs.a to libapi.a 2015-02-12 17:55:18 -03:00
sigchain.c
sigchain.h
sort.c perf diff: Support for different binaries 2015-02-27 10:08:38 -03:00
sort.h perf tools: Remove (null) value of "Sort order" for perf mem report 2015-03-24 12:06:55 -03:00
srcline.c perf: Fix building warning on ARM 32 2014-12-19 13:09:43 +01:00
stat.c
stat.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
strbuf.c
strbuf.h
strfilter.c
strfilter.h
string.c Revert "perf tools: Default to cpu// for events v5" 2014-10-15 16:04:33 -03:00
strlist.c
strlist.h
svghelper.c perf timechart: Implement IO mode 2014-07-10 00:22:54 +02:00
svghelper.h perf timechart: Implement IO mode 2014-07-10 00:22:54 +02:00
symbol-elf.c perf symbols: Save DSO loading errno to better report errors 2015-03-24 12:08:43 -03:00
symbol-minimal.c perf symbols: Save DSO loading errno to better report errors 2015-03-24 12:08:43 -03:00
symbol.c perf tools: Add pid/tid filtering to report and script commands 2015-03-24 13:02:46 -03:00
symbol.h perf tools: Add pid/tid filtering to report and script commands 2015-03-24 13:02:46 -03:00
target.c perf target: Simplify handling of strerror_r return 2015-03-24 12:08:30 -03:00
target.h
thread_map.c perf thread_map: Create dummy constructor out of open coded equivalent 2014-10-14 17:32:52 -03:00
thread_map.h perf thread_map: Create dummy constructor out of open coded equivalent 2014-10-14 17:32:52 -03:00
thread-stack.c perf tools: Enhance the thread stack to output call/return data 2014-11-03 17:43:56 -03:00
thread-stack.h perf tools: Enhance the thread stack to output call/return data 2014-11-03 17:43:56 -03:00
thread.c perf tools: Remove superfluous thread->comm_set setting 2015-03-12 12:39:50 -03:00
thread.h perf tools: Add pid/tid filtering to report and script commands 2015-03-24 13:02:46 -03:00
tool.h perf tools: tool->finished_round() doesn't need perf_session 2015-03-12 12:39:49 -03:00
top.c
top.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
trace-event-info.c perf tools: Move pr_* debug macros into debug object 2014-07-17 12:58:39 -03:00
trace-event-parse.c perf tools: Introduce event_format__fprintf method 2015-02-06 11:46:37 +01:00
trace-event-read.c perf tools: Remove needless getopt.h includes 2014-07-17 12:59:00 -03:00
trace-event-scripting.c perf scripting: No need to pass thread twice to the scripting callbacks 2015-04-02 13:18:41 -03:00
trace-event.c
trace-event.h perf scripting: No need to pass thread twice to the scripting callbacks 2015-04-02 13:18:41 -03:00
tsc.c perf tools: Move rdtsc() function 2014-07-23 11:48:11 -03:00
tsc.h perf tools: Move rdtsc() function 2014-07-23 11:48:11 -03:00
unwind-libdw.c perf callchains: Use thread->mg->machine 2014-10-29 10:32:46 -02:00
unwind-libdw.h perf tools: Add libdw DWARF post unwind support 2014-02-24 09:29:36 -03:00
unwind-libunwind.c perf callchain: Separate eh/debug frame offset cache. 2015-03-19 13:53:27 -03:00
unwind.h perf callchains: Use thread->mg->machine 2014-10-29 10:32:46 -02:00
usage.c
util.c perf tools: Introduce dump_stack signal helper 2015-02-24 15:34:23 -03:00
util.h perf tools: Add lzma decompression support for kernel module 2015-03-21 14:53:40 -03:00
values.c
values.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
vdso.c perf tools: Do not attempt to run perf-read-vdso32 if it wasn't built 2014-10-29 10:32:48 -02:00
vdso.h perf tools: Add support for 32-bit compatibility VDSOs 2014-10-29 10:32:48 -02:00
wrapper.c
xyarray.c
xyarray.h
zlib.c perf tools: Add gzip decompression support for kernel module 2014-11-05 10:11:26 -03:00