cmd/vendor/.../pprof: refresh from upstream@a74ae6f

Merges updates listed in
https://github.com/google/pprof/compare/0e0e5b725...a74ae6f

Update #24443

cmd/vendor/vendor.json was updated manually.

Change-Id: I15d5fe82ac18263d4d54f5773cee0e197e93dd59
Reviewed-on: https://go-review.googlesource.com/101736
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils.go b/src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils.go
index 390f952feb..94edd0711a 100644
--- a/src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils.go
+++ b/src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils.go
@@ -111,6 +111,11 @@ func initTools(b *binrep, config string) {
 	defaultPath := paths[""]
 	b.llvmSymbolizer, b.llvmSymbolizerFound = findExe("llvm-symbolizer", append(paths["llvm-symbolizer"], defaultPath...))
 	b.addr2line, b.addr2lineFound = findExe("addr2line", append(paths["addr2line"], defaultPath...))
+	if !b.addr2lineFound {
+		// On MacOS, brew installs addr2line under gaddr2line name, so search for
+		// that if the tool is not found by its default name.
+		b.addr2line, b.addr2lineFound = findExe("gaddr2line", append(paths["addr2line"], defaultPath...))
+	}
 	b.nm, b.nmFound = findExe("nm", append(paths["nm"], defaultPath...))
 	b.objdump, b.objdumpFound = findExe("objdump", append(paths["objdump"], defaultPath...))
 }
@@ -306,9 +311,9 @@ func (f *fileNM) SourceLine(addr uint64) ([]plugin.Frame, error) {
 }
 
 // fileAddr2Line implements the binutils.ObjFile interface, using
-// 'addr2line' to map addresses to symbols (with file/line number
-// information). It can be slow for large binaries with debug
-// information.
+// llvm-symbolizer, if that's available, or addr2line to map addresses to
+// symbols (with file/line number information). It can be slow for large
+// binaries with debug information.
 type fileAddr2Line struct {
 	once sync.Once
 	file