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dee36a2abb
linux/tools/perf
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Masami Hiramatsu dee36a2abb perf probe: Skip overlapped location on searching variables 
Since debuginfo__find_probes() callback function can be called with  the
location which already passed, the callback function must filter out
such overlapped locations.

add_probe_trace_event() has already done it by commit 1a375ae765
("perf probe: Skip same probe address for a given line"), but
add_available_vars() doesn't. Thus perf probe -v shows same address
repeatedly as below:

  # perf probe -V vfs_read:18
  Available variables at vfs_read:18
          @<vfs_read+217>
                  char*   buf
                  loff_t* pos
                  ssize_t ret
                  struct file*    file
          @<vfs_read+217>
                  char*   buf
                  loff_t* pos
                  ssize_t ret
                  struct file*    file
          @<vfs_read+226>
                  char*   buf
                  loff_t* pos
                  ssize_t ret
                  struct file*    file

With this fix, perf probe -V shows it correctly:

  # perf probe -V vfs_read:18
  Available variables at vfs_read:18
          @<vfs_read+217>
                  char*   buf
                  loff_t* pos
                  ssize_t ret
                  struct file*    file
          @<vfs_read+226>
                  char*   buf
                  loff_t* pos
                  ssize_t ret
                  struct file*    file

Fixes: cf6eb489e5 ("perf probe: Show accessible local variables")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/157241938927.32002.4026859017790562751.stgit@devnote2
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-07 08:30:19 -03:00
..
arch perf tools: Fix cross compile for ARM64 2019-11-06 15:49:39 -03:00
bench perf env: Remove needless cpumap.h header 2019-09-20 09:19:21 -03:00
Documentation perf stat: Add --per-node agregation support 2019-11-06 15:49:39 -03:00
examples/bpf perf augmented_raw_syscalls: Reduce perf_event_output() boilerplate 2019-08-26 11:58:29 -03:00
include/bpf perf include bpf: Add bpf_tail_call() prototype 2019-07-29 18:34:40 -03:00
jvmti perf jvmti: Link against tools/lib/ctype.h to have weak strlcpy() 2019-10-15 11:47:38 -03:00
lib perf evsel: Avoid close(-1) 2019-11-06 15:43:05 -03:00
pmu-events perf vendor events intel: Update all the Intel JSON metrics from TMAM 3.6. 2019-11-06 15:49:39 -03:00
python treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 407 2019-06-05 17:37:14 +02:00
scripts perf scripts python: exported-sql-viewer.py: Add Time chart by CPU 2019-10-07 12:22:17 -03:00
tests perf map_groups: Introduce for_each_entry() and for_each_entry_safe() iterators 2019-11-06 15:49:39 -03:00
trace perf trace: Wire up strarray__strtoul_flags() 2019-10-19 15:35:02 -03:00
ui libperf: Add perf_evlist__first()/last() functions 2019-09-25 09:51:48 -03:00
util perf probe: Skip overlapped location on searching variables 2019-11-07 08:30:19 -03:00
.gitignore perf: Update .gitignore file 2019-08-31 22:27:52 -03:00
Build perf tools: Rename build libperf to perf 2019-02-14 15:18:08 -03:00
builtin-annotate.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-bench.c perf tools: Remove perf.h from source files not needing it 2019-08-29 17:38:32 -03:00
builtin-buildid-cache.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-buildid-list.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-c2c.c perf c2c: Fix memory leak in build_cl_output() 2019-10-15 12:08:13 -03:00
builtin-config.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
builtin-data.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
builtin-diff.c perf diff: Report noisy for cycles diff 2019-10-11 10:57:00 -03:00
builtin-evlist.c perf evsel: Introduce evsel_fprintf.h 2019-09-25 16:26:34 -03:00
builtin-ftrace.c perf auxtrace: Uninline functions that touch perf_session 2019-08-31 22:24:10 -03:00
builtin-help.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
builtin-inject.c perf inject: Make --strip keep evsels 2019-11-06 15:49:40 -03:00
builtin-kallsyms.c perf dsos: Move the dsos struct and its methods to separate source files 2019-08-31 22:24:10 -03:00
builtin-kmem.c perf kmem: Fix memory leak in compact_gfp_flags() 2019-10-16 10:08:32 -03:00
builtin-kvm.c perf kvm: Use evlist layer api when possible 2019-11-06 15:43:05 -03:00
builtin-list.c perf list: Hide deprecated events by default 2019-10-19 15:35:01 -03:00
builtin-lock.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-mem.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-probe.c perf probe: No need for symbol.h, symbol_conf is enough 2019-08-31 22:24:10 -03:00
builtin-record.c perf record: Put a copy of kcore into the perf.data directory 2019-11-06 15:43:05 -03:00
builtin-report.c perf maps: Add for_each_entry()/_safe() iterators 2019-11-06 15:49:25 -03:00
builtin-sched.c perf evsel: Introduce evsel_fprintf.h 2019-09-25 16:26:34 -03:00
builtin-script.c perf script: Fix --reltime with --time 2019-10-15 08:36:22 -03:00
builtin-stat.c perf stat: Add --per-node agregation support 2019-11-06 15:49:39 -03:00
builtin-timechart.c perf session: Return error code for perf_session__new() function on failure 2019-09-20 15:58:11 -03:00
builtin-top.c libperf: Adopt perf_mmap__read_event() from tools/perf 2019-10-10 11:49:46 -03:00
builtin-trace.c perf trace: Use STUL_STRARRAY_FLAGS with mmap 2019-10-19 15:35:02 -03:00
builtin-version.c perf symbols: Move mem_info and branch_info out of symbol.h 2019-08-31 22:27:48 -03:00
builtin.h perf tools: Remove needless util.h include from builtin.h 2019-08-28 17:19:34 -03:00
check-headers.sh tools arch x86: Grab a copy of the file containing the IRQ vector defines 2019-10-15 15:42:01 -03:00
command-list.txt
CREDITS
design.txt perf/doc: Update design.txt for exclude_{host|guest} flags 2019-01-21 11:01:18 +01:00
Makefile
Makefile.config perf tools: Allow to build with -ltcmalloc 2019-10-15 08:36:22 -03:00
Makefile.perf libbeauty: Hook up the x86 irq_vectors table generator 2019-10-15 15:48:50 -03:00
MANIFEST tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
perf-archive.sh
perf-completion.sh
perf-read-vdso.c perf tools: Make find_vdso_map() more modular 2019-01-08 13:28:13 -03:00
perf-sys.h perf tools: Make usage of test_attr__* optional for perf-sys.h 2019-10-07 12:22:17 -03:00
perf-with-kcore.sh Merge branch 'x86/cpu' into perf/core, to pick up dependent changes 2019-06-17 12:29:16 +02:00
perf.c libperf: Merge libperf_set_print() into libperf_init() 2019-09-25 09:51:49 -03:00
perf.h perf time-utils: Adopt rdclock() from perf.h 2019-08-29 17:38:32 -03:00