diff options
Diffstat (limited to 'lib/Target/CBackend/CBackend.cpp')
| -rw-r--r-- | lib/Target/CBackend/CBackend.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp index a0b4ceb7f1..1346acbb04 100644 --- a/lib/Target/CBackend/CBackend.cpp +++ b/lib/Target/CBackend/CBackend.cpp @@ -1290,6 +1290,11 @@ static void generateCompilerSpecificCode(std::ostream& Out) { << "#define __ATTRIBUTE_WEAK__\n" << "#endif\n\n"; + // Add hidden visibility support. FIXME: APPLE_CC? + Out << "#if defined(__GNUC__)\n" + << "#define __HIDDEN__ __attribute__((visibility(\"hidden\")))\n" + << "#endif\n\n"; + // Define NaN and Inf as GCC builtins if using GCC, as 0 otherwise // From the GCC documentation: // @@ -1500,6 +1505,8 @@ bool CWriter::doInitialization(Module &M) { Out << " __ATTRIBUTE_CTOR__"; if (StaticDtors.count(I)) Out << " __ATTRIBUTE_DTOR__"; + if (I->hasHiddenVisibility()) + Out << " __HIDDEN__"; if (I->hasName() && I->getName()[0] == 1) Out << " LLVM_ASM(\"" << I->getName().c_str()+1 << "\")"; @@ -1531,6 +1538,8 @@ bool CWriter::doInitialization(Module &M) { Out << " __ATTRIBUTE_WEAK__"; else if (I->hasExternalWeakLinkage()) Out << " __EXTERNAL_WEAK__"; + if (I->hasHiddenVisibility()) + Out << " __HIDDEN__"; Out << ";\n"; } } @@ -1559,6 +1568,9 @@ bool CWriter::doInitialization(Module &M) { else if (I->hasWeakLinkage()) Out << " __ATTRIBUTE_WEAK__"; + if (I->hasHiddenVisibility()) + Out << " __HIDDEN__"; + // If the initializer is not null, emit the initializer. If it is null, // we try to avoid emitting large amounts of zeros. The problem with // this, however, occurs when the variable has weak linkage. In this |