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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2015-12-15 23:00:08 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2015-12-15 23:00:08 +0000 |
| commit | 67849d56c3ce2459b8681da5e7935289018dcdbb (patch) | |
| tree | f904385690622380fbc755e3b34db2134cdba89d /llvm/lib/Transforms/IPO/PassManagerBuilder.cpp | |
| parent | a495307e5e2cdb57bbdadeafa063883141ff3780 (diff) | |
| download | bcm5719-llvm-67849d56c3ce2459b8681da5e7935289018dcdbb.tar.gz bcm5719-llvm-67849d56c3ce2459b8681da5e7935289018dcdbb.zip | |
Cross-DSO control flow integrity (LLVM part).
An LTO pass that generates a __cfi_check() function that validates a
call based on a hash of the call-site-known type and the target
pointer.
llvm-svn: 255693
Diffstat (limited to 'llvm/lib/Transforms/IPO/PassManagerBuilder.cpp')
| -rw-r--r-- | llvm/lib/Transforms/IPO/PassManagerBuilder.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp index 6f709937f86..0d8982774d9 100644 --- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -613,6 +613,10 @@ void PassManagerBuilder::populateLTOPassManager(legacy::PassManagerBase &PM) { if (OptLevel > 1) addLTOOptimizationPasses(PM); + // Create a function that performs CFI checks for cross-DSO calls with targets + // in the current module. + PM.add(createCrossDSOCFIPass()); + // Lower bit sets to globals. This pass supports Clang's control flow // integrity mechanisms (-fsanitize=cfi*) and needs to run at link time if CFI // is enabled. The pass does nothing if CFI is disabled. |
