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Turn off "attribute weak" to pacify Mac OS X's system compiler, which prints a

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warning whenever it sees it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10391 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2003-12-11 00:24:36 +00:00
parent dfa58498ae
commit 27f7a71a25
2 changed files with 50 additions and 8 deletions
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29
lib/Target/CBackend/CBackend.cpp
View File

@ -585,7 +585,28 @@ static void generateCompilerSpecificCode(std::ostream& Out) {
// If we aren't being compiled with GCC, just drop these attributes.
Out << "#ifndef __GNUC__ /* Can only support \"linkonce\" vars with GCC */\n"
<< "#define __attribute__(X)\n"
<< "#endif\n";
<< "#endif\n\n";
#if 0
// At some point, we should support "external weak" vs. "weak" linkages.
// On Mac OS X, "external weak" is spelled "__attribute__((weak_import))".
Out << "#if defined(__GNUC__) && defined(__APPLE_CC__)\n"
<< "#define __EXTERNAL_WEAK__ __attribute__((weak_import))\n"
<< "#elif defined(__GNUC__)\n"
<< "#define __EXTERNAL_WEAK__ __attribute__((weak))\n"
<< "#else\n"
<< "#define __EXTERNAL_WEAK__\n"
<< "#endif\n\n";
#endif
// For now, turn off the weak linkage attribute on Mac OS X. (See above.)
Out << "#if defined(__GNUC__) && defined(__APPLE_CC__)\n"
<< "#define __ATTRIBUTE_WEAK__\n"
<< "#elif defined(__GNUC__)\n"
<< "#define __ATTRIBUTE_WEAK__ __attribute__((weak))\n"
<< "#else\n"
<< "#define __ATTRIBUTE_WEAK__\n"
<< "#endif\n\n";
}
// generateProcessorSpecificCode - This is where we add conditional compilation
@ -683,7 +704,7 @@ void CWriter::printModule(Module *M) {
if ((I->hasInternalLinkage() || !MangledGlobals.count(I)) &&
!I->getIntrinsicID()) {
printFunctionSignature(I, true);
if (I->hasWeakLinkage()) Out << " __attribute__((weak))";
if (I->hasWeakLinkage()) Out << " __ATTRIBUTE_WEAK__";
Out << ";\n";
}
}
@ -706,7 +727,7 @@ void CWriter::printModule(Module *M) {
if (I->hasLinkOnceLinkage())
Out << " __attribute__((common))";
else if (I->hasWeakLinkage())
Out << " __attribute__((weak))";
Out << " __ATTRIBUTE_WEAK__";
Out << ";\n";
}
}
@ -722,7 +743,7 @@ void CWriter::printModule(Module *M) {
if (I->hasLinkOnceLinkage())
Out << " __attribute__((common))";
else if (I->hasWeakLinkage())
Out << " __attribute__((weak))";
Out << " __ATTRIBUTE_WEAK__";
// 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

29
lib/Target/CBackend/Writer.cpp
View File

@ -585,7 +585,28 @@ static void generateCompilerSpecificCode(std::ostream& Out) {
// If we aren't being compiled with GCC, just drop these attributes.
Out << "#ifndef __GNUC__ /* Can only support \"linkonce\" vars with GCC */\n"
<< "#define __attribute__(X)\n"
<< "#endif\n";
<< "#endif\n\n";
#if 0
// At some point, we should support "external weak" vs. "weak" linkages.
// On Mac OS X, "external weak" is spelled "__attribute__((weak_import))".
Out << "#if defined(__GNUC__) && defined(__APPLE_CC__)\n"
<< "#define __EXTERNAL_WEAK__ __attribute__((weak_import))\n"
<< "#elif defined(__GNUC__)\n"
<< "#define __EXTERNAL_WEAK__ __attribute__((weak))\n"
<< "#else\n"
<< "#define __EXTERNAL_WEAK__\n"
<< "#endif\n\n";
#endif
// For now, turn off the weak linkage attribute on Mac OS X. (See above.)
Out << "#if defined(__GNUC__) && defined(__APPLE_CC__)\n"
<< "#define __ATTRIBUTE_WEAK__\n"
<< "#elif defined(__GNUC__)\n"
<< "#define __ATTRIBUTE_WEAK__ __attribute__((weak))\n"
<< "#else\n"
<< "#define __ATTRIBUTE_WEAK__\n"
<< "#endif\n\n";
}
// generateProcessorSpecificCode - This is where we add conditional compilation
@ -683,7 +704,7 @@ void CWriter::printModule(Module *M) {
if ((I->hasInternalLinkage() || !MangledGlobals.count(I)) &&
!I->getIntrinsicID()) {
printFunctionSignature(I, true);
if (I->hasWeakLinkage()) Out << " __attribute__((weak))";
if (I->hasWeakLinkage()) Out << " __ATTRIBUTE_WEAK__";
Out << ";\n";
}
}
@ -706,7 +727,7 @@ void CWriter::printModule(Module *M) {
if (I->hasLinkOnceLinkage())
Out << " __attribute__((common))";
else if (I->hasWeakLinkage())
Out << " __attribute__((weak))";
Out << " __ATTRIBUTE_WEAK__";
Out << ";\n";
}
}
@ -722,7 +743,7 @@ void CWriter::printModule(Module *M) {
if (I->hasLinkOnceLinkage())
Out << " __attribute__((common))";
else if (I->hasWeakLinkage())
Out << " __attribute__((weak))";
Out << " __ATTRIBUTE_WEAK__";
// 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