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authorChad Rosier <mcrosier@apple.com>2013-01-29 23:31:22 +0000
committerChad Rosier <mcrosier@apple.com>2013-01-29 23:31:22 +0000
commit78d85b1c5830a881c0a20a1b3fea99ee73149590 (patch)
tree10eaec603fd207c4c2603ab89586a7cf5e957c8f /lib/Frontend
parent13e42fb10b225cb3eed7e6e4c6bbe2fff1127407 (diff)
[ubsan] Implement the -fcatch-undefined-behavior flag using a trapping
implementation; this is much more inline with the original implementation (i.e., pre-ubsan) and does not require run-time library support. The trapping implementation can be invoked using either '-fcatch-undefined-behavior' or '-fsanitize=undefined-trap -fsanitize-undefined-trap-on-error', with the latter being preferred. Eventually, the -fcatch-undefined-behavior' flag will be removed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173848 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Frontend')
-rw-r--r--lib/Frontend/CompilerInvocation.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index b200637cb5..245de3416f 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -392,6 +392,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
Args.hasArg(OPT_fsanitize_memory_track_origins);
Opts.SanitizeAddressZeroBaseShadow =
Args.hasArg(OPT_fsanitize_address_zero_base_shadow);
+ Opts.SanitizeUndefinedTrapOnError =
+ Args.hasArg(OPT_fsanitize_undefined_trap_on_error);
Opts.SSPBufferSize =
Args.getLastArgIntValue(OPT_stack_protector_buffer_size, 8, Diags);
Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);