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Diffstat (limited to 'src/doc/rustc-dev-guide')
| -rw-r--r-- | src/doc/rustc-dev-guide/src/profiling/with_perf.md | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/doc/rustc-dev-guide/src/profiling/with_perf.md b/src/doc/rustc-dev-guide/src/profiling/with_perf.md index 6cd98f886dd..51a22d18577 100644 --- a/src/doc/rustc-dev-guide/src/profiling/with_perf.md +++ b/src/doc/rustc-dev-guide/src/profiling/with_perf.md @@ -52,6 +52,13 @@ you made in the beginning. But there are some things to be aware of: - You probably don't want incremental messing about with your profile. So something like `CARGO_INCREMENTAL=0` can be helpful. +In case to avoid the issue of `addr2line xxx/elf: could not read first record` when reading +collected data from `cargo`, you may need use the latest version of `addr2line`: + +```bash +cargo install addr2line --features="bin" +``` + ### Gathering a perf profile from a `perf.rust-lang.org` test Often we want to analyze a specific test from `perf.rust-lang.org`. |