perf/core improvemends and fixes for v4.14:
New features:
- Filter out 'sshd' in the tracer ancestry in 'perf trace' syswide tracing,
to elliminate tracing loops (Arnaldo Carvalho de Melo)
- Support lookup of symbols in other mount namespaces in 'perf top' (Krister Johansen)
- Initial 'clone' syscall args beautifier in 'perf trace' (Arnaldo Carvalho de Melo)
User visible:
- Ignore 'fd' and 'offset' args for MAP_ANONYMOUS in 'perf trace'
(Arnaldo Carvalho de Melo)
- Process tracing data in 'perf annotate' pipe mode (David Carrillo-Cisneros)
- Make 'perf report --branch-history' work without callgraphs(-g) option
in perf record (Jin Yao)
- Tag branch type/flag on "to" and tag cycles on "from" in 'perf report' (Jin Yao)
Fixes:
- Fix jvmti linker error when libelf config is disabled (Sudeep Holla)
- Fix cgroups refcount usage (Arnaldo Carvalho de Melo)
- Fix kernel symbol adjustment for s390x (Thomas Richter)
- Fix 'perf report --stdio --show-total-period', it was showing the
number of samples, not the total period (Taeung Song)
Infrastructure:
- Add perf_sample dictionary to tracepoint handlers in 'perf script'
python, which were already present for other types of events
(hardware, etc) (Arun Kalyanasundaram)
- Make build fail on vendor events JSON parse error (Andi Kleen)
- Adopt strstarts() from the kernel (Arnaldo Carvalho de Melo)
Arch specific:
- Set no_aux_samples for the tracking event in Intel PT (Kan Liang)
- Always set no branch for Intel PT dummy event (Kan Liang)
Trivial:
- Simplify some error handlers in 'perf script' (Dan Carpenter)
- Add EXCLUDE_EXTLIBS and EXTRA_PERFLIBS to makefile (David Carrillo-Cisneros)
perf tools: Add tools/include/uapi/asm-generic/fcntl.h to the MANIFEST
This file was copied from the kernel so that we could build tools/perf/
on older systems where some newer defines, such as these are available:
CC trace/beauty/fcntl.o
trace/beauty/fcntl.c: In function ‘syscall_arg__scnprintf_fcntl_arg’:
trace/beauty/fcntl.c:93:13: error: ‘F_OFD_SETLK’ undeclared (first use in this function)
cmd == F_OFD_SETLK || cmd == F_OFD_SETLKW || cmd == F_OFD_GETLK ||
^
trace/beauty/fcntl.c:93:13: note: each undeclared identifier is reported only once for each function it appears in
trace/beauty/fcntl.c:93:35: error: ‘F_OFD_SETLKW’ undeclared (first use in this function)
cmd == F_OFD_SETLK || cmd == F_OFD_SETLKW || cmd == F_OFD_GETLK ||
^
trace/beauty/fcntl.c:93:58: error: ‘F_OFD_GETLK’ undeclared (first use in this function)
cmd == F_OFD_SETLK || cmd == F_OFD_SETLKW || cmd == F_OFD_GETLK ||
^
mv: cannot stat ‘trace/beauty/.fcntl.o.tmp’: No such file or directory
make[4]: *** [trace/beauty/fcntl.o] Error 1
make[3]: *** [trace/beauty] Error 2
make[3]: *** Waiting for unfinished jobs....
CC tests/llvm.o
But we need to make sure that it is also in the tools/perf/MANIFEST file, that
is used to build a tarball for detached (from the kernel sources) compilation,
which was failing, with the above message, on a RHEL7.4 system, fix it.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: 84d1d8a12df3 ("tools include uapi asm-generic: Grab a copy of fcntl.h")
Link: http://lkml.kernel.org/n/tip-2d5px7aq5stbwi24pgirwtlm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
1 file changed
