Don't work -source_path flag in go tool pprof

[ilya-korotya]

I try make profiling application via go tool pprof. I have profile.out from docker container. And I try run pprof locally:

go tool pprof -source_path=/home/korotya-ilya highloadcup_2018 profile.out

But when I try run list command I got error:

(pprof) list changeSymbol 
Total: 1.73s
ROUTINE ======================== github.com/ilya-korotya/highloadcup_2018/postgres.changeSymbol in /go/src/github.com/ilya-korotya/highloadcup_2018/postgres/init.go
         0      640ms (flat, cum) 36.99% of Total
 Error: open /go/src/github.com/ilya-korotya/highloadcup_2018/postgres/init.go: no such file or directory

Locally path to project: ~/go/src/github.com/ilya-korotya/highloadcup_2018

Local go env:

GOARCH="amd64"
GOBIN=""
GOCACHE="/home/korotya-ilya/.cache/go-build"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/korotya-ilya/go"
GORACE=""
GOROOT="/usr/local/go"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build654244657=/tmp/go-build -gno-record-gcc-switches"

System:

Linux korotya-ilya 4.15.0-50-generic #54-Ubuntu SMP Mon May 6 18:46:08 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

[aalexand]

Does pprof included in the Go version you use support the -trim-path option? If not, locating absolute paths won't work, you'll have to make sure the paths inside and outside the container match exactly (which is the easiest thing to do anyway, I think). Or use pprof from head of this repo.

If you do use pprof that supports the -trim-path option, try something like -source-path=/home/korotya-ilya/go/src, that should be enough to set -trim-path to a good default using the basename heuristic. Or be more explicit as -trim-path=/go/src/ -source-path=/home/korotya-ilya/go/src/.

[ilya-korotya]

Sorry. That's my fault. I did not notice that I have a missing -trim-path flag. I close the issue.

[jordy1024]

@ilya-korotya
What does the final working cmd look like? Can you share it in full?

[yudidi]

@ilya-korotya
Hello, What does the final working cmd look like? Can you share it in full?

[jamslinger]

Thx, this worked for me: go tool pprof -trim_path=/build/ -source_path=~/app/ out.prof