mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-11-01 17:08:10 +00:00
Code Issues Releases Wiki Activity
linux-stable/tools
History
Arnaldo Carvalho de Melo d688d0376c perf trace beauty prctl: Generate 'option' string table from kernel headers 
This is one more case where the way that syscall parameter values are
defined in kernel headers are easy to parse using a shell script that
will then generate the string table that gets used by the prctl 'option'
argument beautifier.

This way as soon as the header syncronization mechanism in perf's build
system detects a change in a copy of a kernel ABI header and that file
is syncronized, we get 'perf trace' updated automagically.

Further work needed for the PR_SET_ values, as well for using eBPF to
copy the non-integer arguments to/from the kernel.

E.g.: System wide prctl tracing:

  # perf trace -e prctl
  1668.028 ( 0.025 ms): TaskSchedulerR/10649 prctl(option: SET_NAME, arg2: 0x2b61d5db15d0) = 0
  3365.663 ( 0.018 ms): chrome/10650 prctl(option: SET_SECCOMP, arg2: 2, arg4: 8         ) = -1 EFAULT Bad address
  3366.585 ( 0.010 ms): chrome/10650 prctl(option: SET_NO_NEW_PRIVS, arg2: 1             ) = 0
  3367.173 ( 0.009 ms): TaskSchedulerR/10652 prctl(option: SET_NAME, arg2: 0x2b61d2aaa300) = 0
  3367.222 ( 0.003 ms): TaskSchedulerR/10653 prctl(option: SET_NAME, arg2: 0x2b61d2aaa1e0) = 0
  3367.244 ( 0.002 ms): TaskSchedulerR/10654 prctl(option: SET_NAME, arg2: 0x2b61d2aaa0c0) = 0
  3367.265 ( 0.002 ms): TaskSchedulerR/10655 prctl(option: SET_NAME, arg2: 0x2b61d2ac7f90) = 0
  3367.281 ( 0.002 ms): Chrome_ChildIO/10656 prctl(option: SET_NAME, arg2: 0x7efbe406bb11) = 0
  3367.220 ( 0.004 ms): TaskSchedulerS/10651 prctl(option: SET_NAME, arg2: 0x2b61d2ac1be0) = 0
  3370.906 ( 0.010 ms): GpuMemoryThrea/10657 prctl(option: SET_NAME, arg2: 0x7efbe386ab11) = 0
  3370.983 ( 0.003 ms): File/10658 prctl(option: SET_NAME, arg2: 0x7efbe3069b11          ) = 0
  3384.272 ( 0.020 ms): Compositor/10659 prctl(option: SET_NAME, arg2: 0x7efbe2868b11    ) = 0
  3612.091 ( 0.012 ms): DOM Worker/11489 prctl(option: SET_NAME, arg2: 0x7f49ab97ebf2    ) = 0
<SNIP>
  4512.437 ( 0.004 ms): (sa1)/11490 prctl(option: SET_NAME, arg2: 0x7ffca15af844         ) = 0
  4512.468 ( 0.002 ms): (sa1)/11490 prctl(option: SET_MM, arg2: ARG_START, arg3: 0x7f5cb7c81000) = 0
  4512.472 ( 0.001 ms): (sa1)/11490 prctl(option: SET_MM, arg2: ARG_END, arg3: 0x7f5cb7c81006) = 0
  4514.667 ( 0.002 ms): (sa1)/11490 prctl(option: GET_SECUREBITS                         ) = 0

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-q0s2uw579o5ei6xlh2zjirgz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-27 09:10:10 -03:00
..
accounting
arch tools include: Sync kernel ABI headers with tooling headers 2017-09-25 10:39:44 -03:00
build tools build tests: Don't hardcode gcc name 2017-08-28 16:44:44 -03:00
cgroup
firewire
gpio
hv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-09-06 14:45:08 -07:00
iio iio: tools: add install section 2017-08-09 14:31:58 +01:00
include tools include uapi: Grab a copy of linux/prctl.h 2017-10-27 09:10:10 -03:00
kvm/kvm_stat tools/kvm_stat: add '-f help' to get the available event list 2017-07-26 19:04:53 +02:00
laptop
leds
lib perf/urgent fixes: 2017-09-13 09:25:10 +02:00
net
nfsd
objtool objtool: Fix memory leak in decode_instructions() 2017-10-20 09:43:21 +02:00
pci tools: PCI: Add a missing option help line 2017-08-29 16:03:34 -05:00
pcmcia
perf perf trace beauty prctl: Generate 'option' string table from kernel headers 2017-10-27 09:10:10 -03:00
power Revert "tools/power turbostat: stop migrating, unless '-m'" 2017-10-18 03:17:45 +02:00
scripts Kbuild updates for v4.14 2017-09-14 13:46:33 -07:00
spi spi: tools: add install section 2017-07-26 12:25:28 +01:00
testing Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-10-21 22:44:48 -04:00
thermal/tmon
time
usb usbip: auto retry for concurrent attach 2017-08-31 18:08:45 +02:00
virtio
vm
Makefile spi: Updates for v4.14 2017-09-05 11:40:38 -07:00