microsoft
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WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
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WSL2-Linux-Kernel/tools/perf/trace/beauty
История
Benjamin Peterson b92675f4a9 perf trace beauty ioctl: Fix off-by-one error in cmd->string table 
While tracing a program that calls isatty(3), I noticed that strace
reported TCGETS for the request argument of the underlying ioctl(2)
syscall while perf trace reported TCSETS. strace is corrrect. The bug in
perf was due to the tty ioctl beauty table starting at 0x5400 rather
than 0x5401.

Committer testing:

  Using augmented_raw_syscalls.o and settings to make 'perf trace'
  use strace formatting, i.e. with this in ~/.perfconfig

  # cat ~/.perfconfig
  [trace]
	add_events = /home/acme/git/linux/tools/perf/examples/bpf/augmented_raw_syscalls.c
	show_zeros = yes
	show_duration = no
	no_inherit = yes
	show_timestamp = no
	show_arg_names = no
	args_alignment = 40
	show_prefix = yes

  # strace -e ioctl stty > /dev/null
  ioctl(0, TCGETS, {B38400 opost isig icanon echo ...}) = 0
  ioctl(1, TIOCGWINSZ, 0x7fff8a9b0860)    = -1 ENOTTY (Inappropriate ioctl for device)
  ioctl(1, TCGETS, 0x7fff8a9b0540)        = -1 ENOTTY (Inappropriate ioctl for device)
  +++ exited with 0 +++
  #

Before:

  # perf trace -e ioctl stty > /dev/null
  ioctl(0, TCSETS, 0x7fff2cf79f20)        = 0
  ioctl(1, TIOCSWINSZ, 0x7fff2cf79f40)    = -1 ENOTTY (Inappropriate ioctl for device)
  ioctl(1, TCSETS, 0x7fff2cf79c20)        = -1 ENOTTY (Inappropriate ioctl for device)
  #

After:

  # perf trace -e ioctl stty > /dev/null
  ioctl(0, TCGETS, 0x7ffed0763920)        = 0
  ioctl(1, TIOCGWINSZ, 0x7ffed0763940)    = -1 ENOTTY (Inappropriate ioctl for device)
  ioctl(1, TCGETS, 0x7ffed0763620)        = -1 ENOTTY (Inappropriate ioctl for device)
  #

Signed-off-by: Benjamin Peterson <benjamin@python.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Fixes: 1cc47f2d46 ("perf trace beauty ioctl: Improve 'cmd' beautifier")
Link: http://lkml.kernel.org/r/20190823033625.18814-1-benjamin@python.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 		2019-08-26 11:58:29 -03:00
..
Build perf trace: Beautify 'sync_file_range' arguments 2019-05-28 18:37:43 -03:00
arch_errno_names.c perf util: Introduce architecture specific errno/name mapping 2018-01-23 09:51:37 -03:00
arch_errno_names.sh perf util: Introduce architecture specific errno/name mapping 2018-01-23 09:51:37 -03:00
arch_prctl.c perf trace beauty: Beautify arch_prctl()'s arguments 2018-12-18 16:15:19 -03:00
beauty.h perf trace: Beautify 'sync_file_range' arguments 2019-05-28 18:37:43 -03:00
clone.c perf trace beauty clone: Handle CLONE_PIDFD 2019-05-28 18:37:43 -03:00
drm_ioctl.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
eventfd.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
fadvise.sh perf beauty: Add generator for fadvise64's 'advice' arg constants 2018-12-18 16:17:41 -03:00
fcntl.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
flock.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
fsconfig.sh perf beauty: Add generator for fsconfig's 'cmd' arg values 2019-05-28 18:37:43 -03:00
fsmount.c perf trace: Beautify 'fsmount' arguments 2019-05-28 18:37:43 -03:00
fsmount.sh perf beauty: Add generator for fsmount's 'attr_flags' arg values 2019-05-28 18:37:43 -03:00
fspick.c perf trace: Beautify 'fspick' arguments 2019-05-28 18:37:42 -03:00
fspick.sh perf beauty: Add generator for fspick's 'flags' arg values 2019-05-28 18:37:42 -03:00
futex_op.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
futex_val3.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
ioctl.c perf trace beauty ioctl: Fix off-by-one error in cmd->string table 2019-08-26 11:58:29 -03:00
kcmp.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
kcmp_type.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
kvm_ioctl.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
madvise_behavior.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
mmap.c perf beauty mmap: PROT_WRITE should come before PROT_EXEC 2018-12-21 09:42:46 -03:00
mmap_flags.sh tools headers uapi: Sync asm-generic/mman-common.h and linux/mman.h 2019-03-28 14:31:56 -03:00
mode_t.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
mount_flags.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
mount_flags.sh perf beauty: Switch from using uapi/linux/fs.h to uapi/linux/mount.h 2019-01-08 14:09:33 -03:00
move_mount.c perf trace: Beautify 'move_mount' arguments 2019-05-28 18:37:42 -03:00
move_mount_flags.sh perf beauty: Add generator for 'move_mount' flags argument 2019-05-28 18:37:42 -03:00
msg_flags.c perf beauty msg_flags: Add missing %s lost when adding prefix suppression logic 2019-03-01 15:45:35 -03:00
open_flags.c perf trace beauty: Print O_RDONLY when (flags & O_ACCMODE) == 0 2018-12-18 16:07:42 -03:00
perf_event_open.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
perf_ioctl.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
pid.c perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
pkey_alloc.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
pkey_alloc_access_rights.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
prctl.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
prctl_option.sh tools beauty: Make the prctl option table generator catch all PR_ options 2019-01-03 15:16:04 -03:00
rename_flags.sh perf beauty: Add a string table generator for renameat2's flags constants 2018-12-18 12:23:55 -03:00
renameat.c perf trace beauty renameat: No need to include linux/fs.h 2019-04-01 14:49:24 -03:00
sched_policy.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
seccomp.c perf trace: Use correct SECCOMP prefix spelling, "SECOMP_*" -> "SECCOMP_*" 2018-12-28 16:32:54 -03:00
signum.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
sndrv_ctl_ioctl.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
sndrv_pcm_ioctl.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
sockaddr.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
socket.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
socket_ipproto.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
socket_type.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
statx.c perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
sync_file_range.c perf trace: Beautify 'sync_file_range' arguments 2019-05-28 18:37:43 -03:00
sync_file_range.sh perf beauty: Add generator for sync_file_range's 'flags' arg values 2019-05-28 18:37:43 -03:00
usbdevfs_ioctl.sh tools perf beauty: Fix usbdevfs_ioctl table generator to handle _IOC() 2019-07-29 09:03:42 -03:00
vhost_virtio_ioctl.sh perf beauty: Switch from GPL v2.0 to LGPL v2.1 2018-10-30 11:46:23 -03:00
waitid_options.c perf beauty waitid options: Fix up prefix showing logic 2019-02-14 13:31:12 -03:00
x86_arch_prctl.sh perf beauty: Add a string table generator for x86's 'arch_prctl' codes 2018-12-18 16:15:18 -03:00