linux-stable/tools/perf
Jiri Olsa 29479bfe83 perf tools: Check wether the eBPF file exists in event parsing
Adding the check wether the eBPF file exists, to consider it
as eBPF input file. This way we can differentiate eBPF events
from events that end up with same suffix as eBPF file.

Before:

  $ perf stat -e 'cpu/uops_executed.core/'  true
  bpf: builtin compilation failed: -95, try external compiler
  WARNING:        unable to get correct kernel building directory.
  Hint:   Set correct kbuild directory using 'kbuild-dir' option in [llvm]
          section of ~/.perfconfig or set it to "" to suppress kbuild
          detection.

  event syntax error: 'cpu/uops_executed.core/'
                       \___ Failed to load cpu/uops_executed.c from source: 'version' section incorrect or lost

After:

  $ perf stat -e 'cpu/uops_executed.core/'  true

   Performance counter stats for 'true':

             181,533      cpu/uops_executed.core/:u

         0.002795447 seconds time elapsed

If user makes type in the eBPF file, we prioritize the event syntax
and show following warning:

  $ perf stat -e 'krava.c//'  true
  event syntax error: 'krava.c//'
                       \___ Cannot find PMU `krava.c'. Missing kernel support?

Reported-and-Tested-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Changbin Du <changbin.du@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20171013083736.15037-9-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-10-13 16:45:04 -03:00
..
arch perf test: Fix vmlinux failure on s390x part 2 2017-09-28 13:01:42 -03:00
bench perf tools: Use __maybe_unused consistently 2017-06-19 15:27:06 -03:00
Documentation perf script: Support physical address 2017-09-01 14:46:29 -03:00
jvmti perf jit: fix typo: "incalid" -> "invalid" 2017-06-27 11:55:06 -03:00
pmu-events perf vendor events powerpc: Remove duplicate events 2017-09-01 14:46:00 -03:00
python perf python: Add tracepoint example 2016-07-12 16:23:35 -03:00
scripts perf script python: Add support for sqlite3 to call-graph-from-sql.py 2017-08-15 17:03:38 -03:00
tests perf tests: Fix compile when libunwind's unwind.h is available 2017-09-12 12:34:02 -03:00
trace perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments 2017-08-28 16:44:47 -03:00
ui perf hists: Add extra integrity checks to fmt_free() 2017-10-13 16:43:42 -03:00
util perf tools: Check wether the eBPF file exists in event parsing 2017-10-13 16:45:04 -03:00
.gitignore perf tools: Ignore generated files pmu-events/{jevents,pmu-events.c} for git 2017-03-13 10:59:36 -03:00
Build perf trace: Only build tools/perf/trace/beauty/ when building 'perf trace' 2017-07-18 23:13:52 -03:00
builtin-annotate.c perf annotate browser: Support --show-nr-samples option 2017-08-18 11:15:09 -03:00
builtin-bench.c perf tools: Remove unused 'prefix' from builtin functions 2017-03-27 11:58:09 -03:00
builtin-buildid-cache.c perf buildid-cache: Cache debuginfo 2017-07-18 23:14:11 -03:00
builtin-buildid-list.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
builtin-c2c.c perf tools: Replace error() with pr_err() 2017-06-27 11:22:31 -03:00
builtin-config.c perf config: Check not only section->from_system_config but also item's 2017-09-12 12:35:11 -03:00
builtin-data.c perf data: Add doc when no conversion support compiled 2017-07-28 16:30:45 -03:00
builtin-diff.c perf config: Do not die when parsing u64 or int config values 2017-06-27 11:44:58 -03:00
builtin-evlist.c perf tools: Remove unused 'prefix' from builtin functions 2017-03-27 11:58:09 -03:00
builtin-ftrace.c tools include: Adopt strstarts() from the kernel 2017-07-20 15:46:10 -03:00
builtin-help.c tools include: Adopt strstarts() from the kernel 2017-07-20 15:46:10 -03:00
builtin-inject.c perf tools: Add feature header record to pipe-mode 2017-07-18 23:14:36 -03:00
builtin-kallsyms.c perf tools: Including missing inttypes.h header 2017-04-19 13:01:46 -03:00
builtin-kmem.c mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
builtin-kvm.c perf tools: Remove poll.h and wait.h from util.h 2017-04-24 13:43:34 -03:00
builtin-list.c perf tools: Remove unused 'prefix' from builtin functions 2017-03-27 11:58:09 -03:00
builtin-lock.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
builtin-mem.c perf mem: Support physical address 2017-09-01 14:46:23 -03:00
builtin-probe.c perf buildid-cache: Support binary objects from other namespaces 2017-07-18 23:14:11 -03:00
builtin-record.c perf tools: Support new sample type for physical address 2017-09-01 14:46:00 -03:00
builtin-report.c perf report: Group stat values on global event id 2017-08-28 16:44:44 -03:00
builtin-sched.c perf tools: Replace error() with pr_err() 2017-06-27 11:22:31 -03:00
builtin-script.c perf script: Add missing separator for "-F ip,brstack" (and brstackoff) 2017-10-06 09:48:32 -03:00
builtin-stat.c perf stat: Wait for the correct child 2017-09-12 12:49:13 -03:00
builtin-timechart.c perf tools: Use just forward declarations for struct thread where possible 2017-04-24 13:43:35 -03:00
builtin-top.c perf top: Support lookup of symbols in other mount namespaces. 2017-07-25 22:43:16 -03:00
builtin-trace.c perf trace: Support syscall name globbing 2017-09-01 14:45:58 -03:00
builtin-version.c perf tools: Remove string.h, unistd.h and sys/stat.h from util.h 2017-04-24 13:43:33 -03:00
builtin.h perf tools: Remove stale prototypes from builtin.h 2017-04-24 13:43:33 -03:00
check-headers.sh tools include uapi: Grab a copy of linux/vhost.h 2017-08-01 13:04:56 -03:00
command-list.txt perf tools: Missing c2c command in command-list 2017-03-13 10:59:31 -03:00
CREDITS
design.txt
Makefile
Makefile.config perf tools: Robustify detection of clang binary 2017-08-28 16:44:46 -03:00
Makefile.perf perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments 2017-08-28 16:44:47 -03:00
MANIFEST perf tools: Get all of tools/{arch,include}/ in the MANIFEST 2017-09-25 10:39:43 -03:00
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h perf tools: Use default CPUINFO_PROC where it fits 2017-08-17 16:58:21 -03:00
perf-with-kcore.sh
perf.c perf tools: Support running perf binaries with a dash in their name 2017-09-12 12:48:54 -03:00
perf.h perf tools: Support new sample type for physical address 2017-09-01 14:46:00 -03:00