runtime/pprof: Include build id in generated pprof profiles #62091
Description
Build IDs are used for all sorts of matching purposes for example in the debuginfod project, to associate debuginfo, executables and sources. It would be great if pprof profiles generated by the runtime included the build ID.
Looking at a pprof profile today:
$ gzip --decompress --to-stdout /Users/brancz/pprof/pprof.prometheus.samples.cpu.001.pb.gz | protoc -I/Users/brancz/src/github.com/google/pprof/proto profile.proto --decode perftools.profiles.Profile | grep -A6 "mapping {"
mapping {
id: 1
memory_start: 4194304
memory_limit: 42422272
filename: 5
has_functions: true
}
mapping {
id: 2
memory_start: 140729988530176
memory_limit: 140729988538368
filename: 6
}
mapping {
id: 3
memory_start: 18446744073699065856
memory_limit: 18446744073699069952
filename: 7
}