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Merge "Workaround unexported sancov symbols. Fix multiple sanitizer RT deps." am: 83246459d1

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am: 708b9e6c38

Change-Id: I08c7279a4e836c19fe9610d16fc44efdd0a14b73
This commit is contained in:
Mitch Phillips
2019-10-16 13:50:03 -07:00
committed by android-build-merger
parent 32ebd00639 708b9e6c38
commit 7fbb4838ac
1 changed files with 8 additions and 2 deletions
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10
cc/sanitize.go
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@@ -465,7 +465,6 @@ func (sanitize *sanitize) flags(ctx ModuleContext, flags Flags) Flags {
if Bool(sanitize.Properties.Sanitize.Fuzzer) {
flags.CFlags = append(flags.CFlags, "-fsanitize=fuzzer-no-link")
flags.LdFlags = append(flags.LdFlags, "-fsanitize=fuzzer-no-link")
// TODO(b/131771163): LTO and Fuzzer support is mutually incompatible.
_, flags.LdFlags = removeFromList("-flto", flags.LdFlags)
@@ -473,6 +472,12 @@ func (sanitize *sanitize) flags(ctx ModuleContext, flags Flags) Flags {
flags.LdFlags = append(flags.LdFlags, "-fno-lto")
flags.CFlags = append(flags.CFlags, "-fno-lto")
// TODO(b/142430592): Upstream linker scripts for sanitizer runtime libraries
// discard the sancov_lowest_stack symbol, because it's emulated TLS (and thus
// doesn't match the linker script due to the "__emutls_v." prefix).
flags.LdFlags = append(flags.LdFlags, "-fno-sanitize-coverage=stack-depth")
flags.CFlags = append(flags.CFlags, "-fno-sanitize-coverage=stack-depth")
// TODO(b/133876586): Experimental PM breaks sanitizer coverage.
_, flags.CFlags = removeFromList("-fexperimental-new-pass-manager", flags.CFlags)
flags.CFlags = append(flags.CFlags, "-fno-experimental-new-pass-manager")
@@ -860,7 +865,8 @@ func sanitizerRuntimeMutator(mctx android.BottomUpMutatorContext) {
} else {
runtimeLibrary = config.ScudoRuntimeLibrary(toolchain)
}
} else if len(diagSanitizers) > 0 || c.sanitize.Properties.UbsanRuntimeDep {
} else if len(diagSanitizers) > 0 || c.sanitize.Properties.UbsanRuntimeDep ||
Bool(c.sanitize.Properties.Sanitize.Fuzzer) {
runtimeLibrary = config.UndefinedBehaviorSanitizerRuntimeLibrary(toolchain)
}