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perf symbol: Add command line support for addr2line path

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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>
This commit is contained in:
Ian Rogers
2023-03-28 16:55:43 -07:00
committed by Arnaldo Carvalho de Melo
parent 0b02b47e71
commit 57594454ce
10 changed files with 61 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
tools/perf/builtin-annotate.c
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@@ -517,7 +517,7 @@ int cmd_annotate(int argc, const char **argv)
struct itrace_synth_opts itrace_synth_opts = {
.set = 0,
};
const char *disassembler_style = NULL, *objdump_path = NULL;
const char *disassembler_style = NULL, *objdump_path = NULL, *addr2line_path = NULL;
struct option options[] = {
OPT_STRING('i', "input", &input_name, "file",
"input file name"),
@@ -570,6 +570,8 @@ int cmd_annotate(int argc, const char **argv)
"Strip first N entries of source file path name in programs (with --prefix)"),
OPT_STRING(0, "objdump", &objdump_path, "path",
"objdump binary to use for disassembly and annotations"),
OPT_STRING(0, "addr2line", &addr2line_path, "path",
"addr2line binary to use for line numbers"),
OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
"Enable symbol demangling"),
OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
@@ -629,6 +631,11 @@ int cmd_annotate(int argc, const char **argv)
if (!annotate.opts.objdump_path)
return -ENOMEM;
}
if (addr2line_path) {
symbol_conf.addr2line_path = strdup(addr2line_path);
if (!symbol_conf.addr2line_path)
return -ENOMEM;
}
if (annotate_check_args(&annotate.opts) < 0)
return -EINVAL;