After Clang 6.0, changing the value of a single string can change the
order of symbols in the .rodata section. This confuses Golem's
checks for the equivalence of two binaries.
This change adds a GN flag to omit the git hash and commit time from
the Dart VM's version string to avoid re-running Golem benchmarks on
commits where the only VM change is in the version string.
To use it, pass --gn-args="dart_version_git_info=false" to gn.py
Change-Id: I8134714d50e3c9b6dae750a515dc3c2228d76b53
Reviewed-on: https://dart-review.googlesource.com/33000
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
This CL also removes some compiler flags that increase space somewhat
that help the profiler find symbols, which isn't included in a PRODUCT
build.
Before:
zra@zach:~/dart/sdk$ ls -la out/ProductX64/exe.stripped/
-rwxr-x--- 1 zra eng 9693064 Jun 29 14:52 dart
-rwxr-x--- 1 zra eng 7391080 Jun 29 14:52 dart_precompiled_runtime
R=askesc@google.com, rmacnak@google.com
After:
-rwxr-x--- 1 zra eng 6809424 Jun 29 15:11 dart
-rwxr-x--- 1 zra eng 3299120 Jun 29 15:11 dart_precompiled_runtime
Review-Url: https://codereview.chromium.org/2964133002 .
Zachary Anderson