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Globally enable libcxx's thread safety annotations.

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Add -D_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS to clang extra cppflags
to make libcxx always emit thread safety annotations. Note that this
won't generate additional warnings on projects that don't already use
-Wthread-safety.

Test: treehugger
Change-Id: I517a96571d77be119510c981bc2cbaddb41dee95
This commit is contained in:
Josh Gao 2017-04-26 20:26:14 -07:00
parent dd29407e74
commit e0b933b74d
1 changed files with 5 additions and 0 deletions
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5
cc/config/clang.go
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@ -105,6 +105,11 @@ func init() {
// Bug: http://b/29823425 Disable -Wnull-dereference until the // Bug: http://b/29823425 Disable -Wnull-dereference until the
// new instances detected by this warning are fixed. // new instances detected by this warning are fixed.
"-Wno-null-dereference", "-Wno-null-dereference",
// Enable clang's thread-safety annotations in libcxx.
// Turn off -Wthread-safety-negative, to avoid breaking projects that use -Weverything.
"-D_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS",
"-Wno-thread-safety-negative",
}, " ")) }, " "))
pctx.StaticVariable("ClangExtraTargetCflags", strings.Join([]string{ pctx.StaticVariable("ClangExtraTargetCflags", strings.Join([]string{