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Adrian Hunter a8fcbd269b perf tools: Add FIFO file names as alternative options to --control 
Enable the --control option to accept file names as an alternative to
file descriptors.

Example:

  $ mkfifo perf.control
  $ mkfifo perf.ack
  $ cat perf.ack &
  [1] 6808
  $ perf record --control fifo:perf.control,perf.ack -- sleep 300 &
  [2] 6810
  $ echo disable > perf.control
  $ Events disabled
  ack

  $ echo enable > perf.control
  $ Events enabled
  ack

  $ echo disable > perf.control
  $ Events disabled
  ack

  $ kill %2
  [ perf record: Woken up 4 times to write data ]
  $ [ perf record: Captured and wrote 0.018 MB perf.data (7 samples) ]

  [1]-  Done                    cat perf.ack
  [2]+  Terminated              perf record --control fifo:perf.control,perf.ack -- sleep 300
  $

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20200902105707.11491-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-09-04 14:38:15 -03:00
..
arch
all arch: remove system call sys_sysctl
2020-08-14 19:56:56 -07:00
bench
perf bench: The do_run_multi_threaded() function must use IS_ERR(perf_session__new())
2020-09-03 15:55:56 -03:00
Documentation
perf tools: Add FIFO file names as alternative options to --control
2020-09-04 14:38:15 -03:00
examples/bpf
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-01-28 16:02:33 -08:00
include/bpf
perf bpf: Remove bpf/ subdir from bpf.h headers used to build bpf events
2020-02-18 10:13:28 -03:00
jvmti
perf jvmti: Remove redundant jitdump line table entries
2020-05-29 16:51:38 -03:00
pmu-events
perf jevents: Fix suspicious code in fixregex()
2020-09-03 15:38:05 -03:00
python
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 407
2019-06-05 17:37:14 +02:00
scripts
perf scripts python: exported-sql-viewer.py: Fix time chart call tree
2020-07-03 08:19:52 -03:00
tests
perf tests: Add test for PE binary format support
2020-09-04 14:38:15 -03:00
trace
perf trace beauty: Use the autogenerated protocol family table
2020-08-12 08:43:51 -03:00
ui
perf top/report: Fix infinite loop in the TUI for grouped events
2020-09-01 12:15:52 -03:00
util
perf tools: Add FIFO file names as alternative options to --control
2020-09-04 14:38:15 -03:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
Build
perf tools: Rename build libperf to perf
2019-02-14 15:18:08 -03:00
builtin-annotate.c
perf evsel: Rename perf_evsel__resort*() to evsel__resort*()
2020-05-28 10:03:24 -03:00
builtin-bench.c
perf bench: Add benchmark of find_next_bit
2020-07-31 09:32:11 -03:00
builtin-buildid-cache.c
perf session: Return error code for perf_session__new() function on failure
2019-09-20 15:58:11 -03:00
builtin-buildid-list.c
perf session: Return error code for perf_session__new() function on failure
2019-09-20 15:58:11 -03:00
builtin-c2c.c
perf evlist: Fix the class prefix for 'struct evlist' sample_type methods
2020-06-22 16:28:09 -03:00
builtin-config.c
perf tools: Remove util.h from where it is not needed
2019-09-20 09:19:20 -03:00
builtin-data.c
perf data: Add support to store time of day in CTF data conversion
2020-08-06 09:43:37 -03:00
builtin-diff.c
perf evsel: Rename perf_evsel__is_*() to evsel__is*()
2020-05-05 16:35:31 -03:00
builtin-evlist.c
perf evsel: Rename perf_evsel__fprintf() to evsel__fprintf()
2020-05-28 10:03:24 -03:00
builtin-ftrace.c
perf ftrace: Make option description initials all capital letters
2020-08-14 09:55:33 -03:00
builtin-help.c
perf debug: Remove needless include directives from debug.h
2019-08-31 19:10:19 -03:00
builtin-inject.c
perf inject jit: Remove //anon mmap events
2020-07-08 13:51:12 -03:00
builtin-kallsyms.c
perf dsos: Move the dsos struct and its methods to separate source files
2019-08-31 22:24:10 -03:00
builtin-kmem.c
perf kmem: Pass additional arguments to 'perf record'
2020-07-10 09:37:55 -03:00
builtin-kvm.c
perf evlist: Fix the class prefix for 'struct evlist' 'add' evsel methods
2020-06-22 16:28:09 -03:00
builtin-list.c
perf list: Add metrics to command line usage
2020-05-28 10:03:28 -03:00
builtin-lock.c
perf lock: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
2020-05-05 16:35:31 -03:00
builtin-mem.c
perf c2c: Fix 'perf c2c record -e list' to show the default events used
2020-05-28 10:03:25 -03:00
builtin-probe.c
perf probe: Do not show the skipped events
2020-05-28 10:03:24 -03:00
builtin-record.c
perf tools: Add FIFO file names as alternative options to --control
2020-09-04 14:38:15 -03:00
builtin-report.c
perf report: Disable ordered_events for raw dump
2020-09-01 12:20:25 -03:00
builtin-sched.c
perf sched timehist: Fix use of CPU list with summary option
2020-08-21 10:22:23 -03:00
builtin-script.c
perf script: Add 'tod' field to display time of day
2020-08-06 09:45:23 -03:00
builtin-stat.c
perf tools: Add FIFO file names as alternative options to --control
2020-09-04 14:38:15 -03:00
builtin-timechart.c
perf tools: Replace zero-length array with flexible-array
2020-05-28 10:03:27 -03:00
builtin-top.c
perf top: Skip side-band event setup if HAVE_LIBBPF_SUPPORT is not set
2020-08-21 10:22:23 -03:00
builtin-trace.c
perf record: Extend -D,--delay option with -1 value
2020-08-04 08:50:04 -03:00
builtin-version.c
perf symbols: Move mem_info and branch_info out of symbol.h
2019-08-31 22:27:48 -03:00
builtin.h
perf tools: Remove needless util.h include from builtin.h
2019-08-28 17:19:34 -03:00
check-headers.sh
perf trace beauty: Use the autogenerated protocol family table
2020-08-12 08:43:51 -03:00
command-list.txt
perf help: Add missing subcommand version
2018-09-19 14:53:36 -03:00
CREDITS
…
design.txt
perf tools: Support CAP_PERFMON capability
2020-04-16 12:19:08 -03:00
Makefile
tools: Let O= makes handle a relative path with -C option
2020-03-06 17:08:28 -03:00
Makefile.config
tools features: Add feature test to check if libbfd has buildid support
2020-09-04 14:38:15 -03:00
Makefile.perf
perf tests: Add test for PE binary format support
2020-09-04 14:38:15 -03:00
MANIFEST
libperf: Move to tools/lib/perf
2020-01-06 11:46:09 -03:00
perf-archive.sh
…
perf-completion.sh
…
perf-read-vdso.c
perf tools: Make find_vdso_map() more modular
2019-01-08 13:28:13 -03:00
perf-sys.h
perf tools: Make usage of test_attr__* optional for perf-sys.h
2019-10-31 21:38:41 +01:00
perf-with-kcore.sh
Merge branch 'x86/cpu' into perf/core, to pick up dependent changes
2019-06-17 12:29:16 +02:00
perf.c
libperf: Merge libperf_set_print() into libperf_init()
2019-09-25 09:51:49 -03:00
perf.h
perf time-utils: Adopt rdclock() from perf.h
2019-08-29 17:38:32 -03:00