firefox/pgo.patch

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2023-04-11 10:57:42 +00:00
diff -up firefox-112.0/build/pgo/profileserver.py.pgo firefox-112.0/build/pgo/profileserver.py
--- firefox-112.0/build/pgo/profileserver.py.pgo 2023-04-06 17:27:40.000000000 +0200
+++ firefox-112.0/build/pgo/profileserver.py 2023-04-06 21:29:33.772294479 +0200
@@ -11,7 +11,7 @@ import subprocess
import sys
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import mozcrash
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-from mozbuild.base import BinaryNotFoundException, MozbuildObject
+from mozbuild.base import BinaryNotFoundException, MozbuildObject, BuildEnvironmentNotFoundException
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from mozfile import TemporaryDirectory
from mozhttpd import MozHttpd
from mozprofile import FirefoxProfile, Preferences
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@@ -87,9 +87,22 @@ if __name__ == "__main__":
locations = ServerLocations()
locations.add_host(host="127.0.0.1", port=PORT, options="primary,privileged")
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- old_profraw_files = glob.glob("*.profraw")
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- for f in old_profraw_files:
- os.remove(f)
+ using_gcc = False
+ try:
+ if build.config_environment.substs.get('CC_TYPE') == 'gcc':
+ using_gcc = True
+ except BuildEnvironmentNotFoundException:
+ pass
+
+ if using_gcc:
+ for dirpath, _, filenames in os.walk('.'):
+ for f in filenames:
+ if f.endswith('.gcda'):
+ os.remove(os.path.join(dirpath, f))
+ else:
+ old_profraw_files = glob.glob('*.profraw')
+ for f in old_profraw_files:
+ os.remove(f)
with TemporaryDirectory() as profilePath:
# TODO: refactor this into mozprofile
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diff -up firefox-112.0/toolkit/components/terminator/nsTerminator.cpp.pgo firefox-112.0/toolkit/components/terminator/nsTerminator.cpp
--- firefox-112.0/toolkit/components/terminator/nsTerminator.cpp.pgo 2023-04-06 17:27:57.000000000 +0200
+++ firefox-112.0/toolkit/components/terminator/nsTerminator.cpp 2023-04-06 21:27:32.538089108 +0200
@@ -460,6 +460,11 @@ void nsTerminator::StartWatchdog() {
}
#endif
+ // Disable watchdog for PGO train builds - writting profile information at
+ // exit may take time and it is better to make build hang rather than
+ // silently produce poorly performing binary.
+ crashAfterMS = INT32_MAX;
+
UniquePtr<Options> options(new Options());
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// crashAfterTicks is guaranteed to be > 0 as
// crashAfterMS >= ADDITIONAL_WAIT_BEFORE_CRASH_MS >> HEARTBEAT_INTERVAL_MS
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diff -up firefox-114.0.2/build/moz.configure/lto-pgo.configure.pgo firefox-114.0.2/build/moz.configure/lto-pgo.configure
--- firefox-114.0.2/build/moz.configure/lto-pgo.configure.pgo 2023-06-22 11:17:37.428552356 +0200
+++ firefox-114.0.2/build/moz.configure/lto-pgo.configure 2023-06-22 11:17:51.476033691 +0200
@@ -86,7 +86,7 @@ def pgo_flags(compiler, profdata, target
return namespace(
gen_cflags=["-fprofile-generate"],
gen_ldflags=["-fprofile-generate"],
- use_cflags=["-fprofile-use", "-fprofile-correction", "-Wcoverage-mismatch"],
+ use_cflags=["-fprofile-use", "-fprofile-correction", "-Wno-coverage-mismatch"],
use_ldflags=["-fprofile-use"],
)