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SafeStack: Disable Darwin support 

Summary:
Darwin support does not appear to be used as evidenced by the fact that
the runtime has never supported non-trivial programs.

Reviewers: pcc, kubamracek

Reviewed By: pcc

Subscribers: cfe-commits, kcc

Differential Revision: https://reviews.llvm.org/D50724

llvm-svn: 339720
This commit is contained in:
Vlad Tsyrklevich 2018-08-14 19:50:41 +00:00
parent a6446223e3
commit 97e6819e79
1 changed files with 0 additions and 10 deletions
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10
clang/lib/Driver/ToolChains/Darwin.cpp
View File

@ -509,15 +509,6 @@ void darwin::Linker::ConstructJob(Compilation &C, const JobAction &JA,
if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles))
getMachOToolChain().addStartObjectFileArgs(Args, CmdArgs); getMachOToolChain().addStartObjectFileArgs(Args, CmdArgs);
// SafeStack requires its own runtime libraries
// These libraries should be linked first, to make sure the
// __safestack_init constructor executes before everything else
if (getToolChain().getSanitizerArgs().needsSafeStackRt()) {
getMachOToolChain().AddLinkRuntimeLib(Args, CmdArgs,
"libclang_rt.safestack_osx.a",
toolchains::Darwin::RLO_AlwaysLink);
}
Args.AddAllArgs(CmdArgs, options::OPT_L); Args.AddAllArgs(CmdArgs, options::OPT_L);
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
@ -2297,7 +2288,6 @@ SanitizerMask Darwin::getSupportedSanitizers() const {
if (isTargetMacOS()) { if (isTargetMacOS()) {
if (!isMacosxVersionLT(10, 9)) if (!isMacosxVersionLT(10, 9))
Res |= SanitizerKind::Vptr; Res |= SanitizerKind::Vptr;
Res |= SanitizerKind::SafeStack;
if (IsX86_64) if (IsX86_64)
Res |= SanitizerKind::Thread; Res |= SanitizerKind::Thread;
} else if (isTargetIOSSimulator() || isTargetTvOSSimulator()) { } else if (isTargetIOSSimulator() || isTargetTvOSSimulator()) {