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

Ravi Bangoria
2018-01-29T08:32:55Z

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

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1.8.3.1