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[stackprotector] Add command line option -fstack-protector-strong

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This option has the following effects:
 * It adds the sspstrong IR attribute to each function within the CU.
 * It defines the macro __SSP_STRONG__ with the value of 2.

Differential Revision: http://llvm-reviews.chandlerc.com/D2717

llvm-svn: 201120
This commit is contained in:
Josh Magee
2014-02-11 01:35:14 +00:00
parent a47009dbd3
commit e0fc1a80cb
9 changed files with 36 additions and 10 deletions
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3
clang/lib/Frontend/CompilerInvocation.cpp
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@@ -1435,7 +1435,8 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
break;
case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
case 2: Opts.setStackProtector(LangOptions::SSPReq); break;
case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
}
// Parse -fsanitize= arguments.