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Add MSan compiler-rt library to LDC install and add it to linkerline for --fsanitize=memory (#3751)

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* Add MSan compiler-rt library to LDC install and add it to linkerline for --fsanitize=memory

* MSan: Add support for `-fsanitize-memory-track-origins=`
This commit is contained in:
Johan Engelen 2021-06-07 00:29:18 +02:00 • committed by GitHub
parent 4e6c9d0ffd
commit a5025bf83e
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6 changed files with 51 additions and 5 deletions
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15
gen/optimizer.cpp
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@ -114,6 +114,11 @@ static cl::opt<bool>
disableSLPVectorization("disable-slp-vectorization", cl::ZeroOrMore,
cl::desc("Disable the slp vectorization pass"));
static cl::opt<int> fSanitizeMemoryTrackOrigins(
"fsanitize-memory-track-origins", cl::ZeroOrMore, cl::init(0),
cl::desc(
"Enable origins tracking in MemorySanitizer (0=disabled, default)"));
unsigned optLevel() {
// Use -O2 as a base for the size-optimization levels.
return optimizeLevel >= 0 ? optimizeLevel : 2;
@ -201,8 +206,14 @@ static void addAddressSanitizerPasses(const PassManagerBuilder &Builder,
static void addMemorySanitizerPass(const PassManagerBuilder &Builder,
PassManagerBase &PM) {
#if LDC_LLVM_VER >= 800
PM.add(createMemorySanitizerLegacyPassPass());
int trackOrigins = fSanitizeMemoryTrackOrigins;
bool recover = false;
bool kernel = false;
#if LDC_LLVM_VER >= 900
PM.add(createMemorySanitizerLegacyPassPass(
MemorySanitizerOptions{trackOrigins, recover, kernel}));
#elif LDC_LLVM_VER >= 800
PM.add(createMemorySanitizerLegacyPassPass(trackOrigins, recover, kernel));
#else
PM.add(createMemorySanitizerPass());
#endif