Attempt to take over all *SAN builds.
MSAN has a lot of coordination required between gn/BUILD.gn and gn_flavor.py.
I'd like to follow up to move more of this into gn/BUILD.gn, to make it easier
to use locally.
The compile steps should be much faster now. We no longer build CMake
and Clang for every run, instead using the clang_linux CIPD package. This
removes the need for all the third_party/externals/llvm/... dependencies.
Similarly, since we're using the clang_linux package, we no longer depend
on Chrome's Clang, and thus no longer need to sync chromium on these bots.
Instead of packaging up MSAN libraries and llvm-symbolizer in the compile
output, I have the test / perf bots also depend on the clang_linux package.
These do not vary from build to build.
No more need for the xsan.blacklist -include hack: Clang, GN, and Ninja
all track changes to xsan.blacklist without our help.
This has the incidental effect of upgrading the compiler used by *SAN
bots from Clang 3.8 to Clang 3.9.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289343002
Review-Url: https://codereview.chromium.org/2289343002
Since we no longer have to call out to obtain the buildbot_spec, merge
the two functions in vars API. As a side effect, this applies
default_env to the sync steps as well, which shouldn't have an
appreciable effect on bot behavior.
BUG=skia:5578
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2209343002
Review-Url: https://codereview.chromium.org/2209343002
- builder_name_schema becomes its own recipe module.
- builder_spec, dm, and nanobench flags move into vars module.
- recipe expectation diffs include:
- no more buildbot_spec.py step
- "real" dm and nanobench flags, instead of --dummy-flags
- some inconsequential stuff in visualbench, which is removed anyway.
BUG=skia:5578
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2215803002
Review-Url: https://codereview.chromium.org/2215803002
