diff options
| author | Ian Rogers <irogers@google.com> | 2023-03-29 01:55:43 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-04-04 14:39:56 +0200 |
| commit | 57594454ceb92defaa0707cf29289f0c3c266ede (patch) | |
| tree | 43d67d121ce11ca1096e42017f7682b56746da55 /tools/perf/Documentation | |
| parent | perf annotate: Allow objdump to be set in perfconfig (diff) | |
| download | linux-57594454ceb92defaa0707cf29289f0c3c266ede.tar.xz linux-57594454ceb92defaa0707cf29289f0c3c266ede.zip | |
perf symbol: Add command line support for addr2line path
Allow addr2line to be set either on the command line or via the
perfconfig file. This doesn't currently work with llvm-addr2line as
the addr2line code emits two things:
1) the address to decode,
2) a bogus ',' value.
The expectation is the bogus value will generate:
??
??:0
that terminates the addr2line reading. However, the output from
llvm-addr2line is a single line with just the input ',' locking up the
addr2line reading that is expecting a second line.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Tom Rix <trix@redhat.com>
Cc: llvm@lists.linux.dev
Link: https://lore.kernel.org/r/20230328235543.1082207-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-annotate.txt | 3 | ||||
| -rw-r--r-- | tools/perf/Documentation/perf-config.txt | 3 | ||||
| -rw-r--r-- | tools/perf/Documentation/perf-report.txt | 3 | ||||
| -rw-r--r-- | tools/perf/Documentation/perf-top.txt | 6 |
4 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt index 980fe2c29275..fe168e8165c8 100644 --- a/tools/perf/Documentation/perf-annotate.txt +++ b/tools/perf/Documentation/perf-annotate.txt @@ -116,6 +116,9 @@ include::itrace.txt[] -M:: --disassembler-style=:: Set disassembler style for objdump. +--addr2line=<path>:: + Path to addr2line binary. + --objdump=<path>:: Path to objdump binary. diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index 697f7f924545..e56ae54805a8 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -250,6 +250,9 @@ annotate.*:: These are in control of addresses, jump function, source code in lines of assembly code from a specific program. + annotate.addr2line:: + addr2line binary to use for file names and line numbers. + annotate.objdump:: objdump binary to use for disassembly and annotations. diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index cfd502f7e6da..af068b4f1e5a 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -381,6 +381,9 @@ OPTIONS This allows to examine the path the program took to each sample. The data collection must have used -b (or -j) and -g. +--addr2line=<path>:: + Path to addr2line binary. + --objdump=<path>:: Path to objdump binary. diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index c60e615b7183..619cc8143ad5 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -161,6 +161,12 @@ Default is to monitor all CPUS. -M:: --disassembler-style=:: Set disassembler style for objdump. +--addr2line=<path>:: + Path to addr2line binary. + +--objdump=<path>:: + Path to objdump binary. + --prefix=PREFIX:: --prefix-strip=N:: Remove first N entries from source file path names in executables |