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Author SHA1 Message Date
Arnaldo Carvalho de Melo b64f1cc6d0 perf trace beauty renameat: No need to include linux/fs.h 
There is no use for what is in that file, as everything is
built by the tools/perf/trace/beauty/rename_flags.sh script from
the copied kernel headers, the end result being:

  $ cat /tmp/build/perf/trace/beauty/generated/rename_flags_array.c
  static const char *rename_flags[] = {
	[0 + 1] = "NOREPLACE",
	[1 + 1] = "EXCHANGE",
	[2 + 1] = "WHITEOUT",
  };
  $

I.e. no use of any defines from uapi/linux/fs.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-lgugmfa8z4bpw5zsbuoitllb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2019-04-01 14:49:24 -03:00
Arnaldo Carvalho de Melo c65c83ffe9 perf trace: Allow asking for not suppressing common string prefixes 
So far we've been suppressing common stuff such as "MAP_" in the mmap
flags, showing "SHARED" instead of "MAP_SHARED", allow for those
prefixes (and a few suffixes) to be shown:

  # trace -e *map,open*,*seek sleep 1
  openat("/etc/ld.so.cache", CLOEXEC) = 3
  mmap(0, 109093, READ, PRIVATE, 3, 0) = 0x7ff61c695000
  openat("/lib64/libc.so.6", CLOEXEC) = 3
  lseek(3, 792, SET) = 792
  mmap(0, 8192, READ|WRITE, PRIVATE|ANONYMOUS) = 0x7ff61c693000
  lseek(3, 792, SET) = 792
  lseek(3, 864, SET) = 864
  mmap(0, 1857568, READ, PRIVATE|DENYWRITE, 3, 0) = 0x7ff61c4cd000
  mmap(0x7ff61c4ef000, 1363968, EXEC|READ, PRIVATE|FIXED|DENYWRITE, 3, 139264) = 0x7ff61c4ef000
  mmap(0x7ff61c63c000, 311296, READ, PRIVATE|FIXED|DENYWRITE, 3, 1503232) = 0x7ff61c63c000
  mmap(0x7ff61c689000, 24576, READ|WRITE, PRIVATE|FIXED|DENYWRITE, 3, 1814528) = 0x7ff61c689000
  mmap(0x7ff61c68f000, 14368, READ|WRITE, PRIVATE|FIXED|ANONYMOUS) = 0x7ff61c68f000
  munmap(0x7ff61c695000, 109093) = 0
  openat("/usr/lib/locale/locale-archive", CLOEXEC) = 3
  mmap(0, 217749968, READ, PRIVATE, 3, 0) = 0x7ff60f523000
  #
  # vim ~/.perfconfig
  #
  # perf config
  llvm.dump-obj=true
  trace.add_events=/home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
  trace.show_zeros=yes
  trace.show_duration=no
  trace.no_inherit=yes
  trace.show_timestamp=no
  trace.show_arg_names=no
  trace.args_alignment=0
  trace.string_quote="
  trace.show_prefix=yes
  #
  #
  # trace -e *map,open*,*seek sleep 1
  openat(AT_FDCWD, "/etc/ld.so.cache", O_CLOEXEC) = 3
  mmap(0, 109093, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f7ebbe59000
  openat(AT_FDCWD, "/lib64/libc.so.6", O_CLOEXEC) = 3
  lseek(3, 792, SEEK_SET) = 792
  mmap(0, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS) = 0x7f7ebbe57000
  lseek(3, 792, SEEK_SET) = 792
  lseek(3, 864, SEEK_SET) = 864
  mmap(0, 1857568, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f7ebbc91000
  mmap(0x7f7ebbcb3000, 1363968, PROT_EXEC|PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 139264) = 0x7f7ebbcb3000
  mmap(0x7f7ebbe00000, 311296, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 1503232) = 0x7f7ebbe00000
  mmap(0x7f7ebbe4d000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 1814528) = 0x7f7ebbe4d000
  mmap(0x7f7ebbe53000, 14368, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS) = 0x7f7ebbe53000
  munmap(0x7f7ebbe59000, 109093) = 0
  openat(AT_FDCWD, "/usr/lib/locale/locale-archive", O_CLOEXEC) = 3
  mmap(0, 217749968, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f7eaece7000
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-mtn1i4rjowjl72trtnbmvjd4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-12-18 16:07:42 -03:00
Arnaldo Carvalho de Melo 2e3d7fac9d perf trace: Add a prefix member to the strarray class 
So that the user, in an upcoming patch, can select printing it to get
the full string as used in the source code, not one with a common prefix
chopped off so as to make the output more compact.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-zypczc88gzbmeqx7b372s138@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-12-18 16:07:42 -03:00
Arnaldo Carvalho de Melo ca7ff2c8e7 perf trace: Beautify renameat2's flags argument 
# strace -e renameat2 -f perf trace -e rename* mv c /tmp
  strace: Process 10824 attached
  [pid 10824] renameat2(AT_FDCWD, "c", AT_FDCWD, "/tmp", RENAME_NOREPLACE) = -1 EXDEV (Invalid cross-device link)
  [pid 10824] renameat2(AT_FDCWD, "c", AT_FDCWD, "/tmp/c", RENAME_NOREPLACE) = -1 EEXIST (File exists)
       1.857 ( 0.008 ms): mv/10824 renameat2(olddfd: CWD, oldname: 0x7ffc72ff3d81, newdfd: CWD, newname: 0x7ffc72ff3d83, flags: NOREPLACE) = -1 EXDEV Invalid cross-device link
       2.002 ( 0.006 ms): mv/10824 renameat2(olddfd: CWD, oldname: 0x7ffc72ff3d81, newdfd: CWD, newname: 0x55ad609efcc0, flags: NOREPLACE) = -1 EEXIST File exists
  mv: 'c' and '/tmp/c' are the same file
  [pid 10824] +++ exited with 1 +++
  --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10824, si_uid=0, si_status=1, si_utime=0, si_stime=0} ---
  +++ exited with 0 +++
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-glyt6nzlt1yx56m5bshy6g83@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2018-12-18 12:23:56 -03:00