linux-kernel - [PATCH 0/3] perf trace powerpc: Remove libaudit dependency for syscalls

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Date:   Mon, 29 Jan 2018 14:04:14 +0530
From:   Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
To:     acme@...nel.org
Cc:     alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, linux-kernel@...r.kernel.org,
        brueckner@...ux.vnet.ibm.com, tmricht@...ux.vnet.ibm.com,
        linuxppc-dev@...ts.ozlabs.org, mpe@...erman.id.au,
        Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
Subject: [PATCH 0/3] perf trace powerpc: Remove libaudit dependency for syscalls

This is almost identical set of patches recently done for s390.

With this, user can run perf trace without libaudit on powerpc
as well. Ex,

  $ make
    ...     libaudit: [ OFF ]

  $ ./perf trace ls
    0.221 ( 0.005 ms): ls/43330 open(filename: 0xac1e2778, flags: CLOEXEC   ) = 3
    0.227 ( 0.003 ms): ls/43330 read(fd: 3, buf: 0x3ffff9c4d678, count: 832 ) = 832
    0.233 ( 0.002 ms): ls/43330 fstat(fd: 3, statbuf: 0x3ffff9c4d4b0        ) = 0
    ...

  $ ./perf trace -e "open*" ls
    0.000 ( 0.014 ms): ls/43342 open(filename: 0x793d8978, flags: CLOEXEC   ) = 3
    0.038 ( 0.006 ms): ls/43342 open(filename: 0x793f2778, flags: CLOEXEC   ) = 3
    ...

Ravi Bangoria (3):
  tools include powerpc: Grab a copy of
    arch/powerpc/include/uapi/asm/unistd.h
  perf powerpc: Generate system call table from asm/unistd.h
  perf trace powerpc: Use generated syscall table

 tools/arch/powerpc/include/uapi/asm/unistd.h       | 399 +++++++++++++++++++++
 tools/perf/Makefile.config                         |   2 +
 tools/perf/arch/powerpc/Makefile                   |  21 ++
 .../perf/arch/powerpc/entry/syscalls/mksyscalltbl  |  35 ++
 tools/perf/check-headers.sh                        |   1 +
 tools/perf/util/syscalltbl.c                       |   4 +
 6 files changed, 462 insertions(+)
 create mode 100644 tools/arch/powerpc/include/uapi/asm/unistd.h
 create mode 100755 tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl

-- 
1.8.3.1