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| author | Jordy Rose <jediknil@belkadan.com> | 2011-08-22 19:01:52 +0000 |
|---|---|---|
| committer | Jordy Rose <jediknil@belkadan.com> | 2011-08-22 19:01:52 +0000 |
| commit | 5765f4c24cc44129f63926ec5f2752aab1619f45 (patch) | |
| tree | 10aecf66da51a60431781bb6ee4248485386e156 /llvm/lib/Support/DynamicLibrary.cpp | |
| parent | 752de1443f5c2cb3e06c06f2e2e6c9d50ec4d119 (diff) | |
| download | llvm-5765f4c24cc44129f63926ec5f2752aab1619f45.zip llvm-5765f4c24cc44129f63926ec5f2752aab1619f45.tar.gz llvm-5765f4c24cc44129f63926ec5f2752aab1619f45.tar.bz2 | |
Make DynamicLibrary thread-safe w/r/t call to dlerror() after dlopen(). PR10718
llvm-svn: 138260
Diffstat (limited to 'llvm/lib/Support/DynamicLibrary.cpp')
| -rw-r--r-- | llvm/lib/Support/DynamicLibrary.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Support/DynamicLibrary.cpp b/llvm/lib/Support/DynamicLibrary.cpp index 5ee6a82..fb02c07 100644 --- a/llvm/lib/Support/DynamicLibrary.cpp +++ b/llvm/lib/Support/DynamicLibrary.cpp @@ -72,6 +72,8 @@ static DenseSet<void *> *OpenedHandles = 0; DynamicLibrary DynamicLibrary::getPermanentLibrary(const char *filename, std::string *errMsg) { + SmartScopedLock<true> lock(getMutex()); + void *handle = dlopen(filename, RTLD_LAZY|RTLD_GLOBAL); if (handle == 0) { if (errMsg) *errMsg = dlerror(); @@ -85,7 +87,6 @@ DynamicLibrary DynamicLibrary::getPermanentLibrary(const char *filename, handle = RTLD_DEFAULT; #endif - SmartScopedLock<true> lock(getMutex()); if (OpenedHandles == 0) OpenedHandles = new DenseSet<void *>(); |