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Add support for 'weak' linkage.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9171 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-10-16 18:29:00 +00:00
parent 6b25242a4b
commit 72ac148d49
9 changed files with 117 additions and 22 deletions
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4
lib/Target/CBackend/CBackend.cpp
View File

@@ -684,6 +684,8 @@ void CWriter::printModule(Module *M) {
printType(Out, I->getType()->getElementType(), Mang->getValueName(I));
if (I->hasLinkOnceLinkage())
Out << " __attribute__((common))";
else if (I->hasWeakLinkage())
Out << " __attribute__((weak))";
if (!I->getInitializer()->isNullValue()) {
Out << " = " ;
writeOperand(I->getInitializer());
@@ -893,6 +895,8 @@ void CWriter::printFunctionSignature(const Function *F, bool Prototype) {
FunctionInnards << ")";
// Print out the return type and the entire signature for that matter
printType(Out, F->getReturnType(), FunctionInnards.str());
if (F->hasWeakLinkage()) Out << " __attribute((weak))";
}
void CWriter::printFunction(Function *F) {

4
lib/Target/CBackend/Writer.cpp
View File

@@ -684,6 +684,8 @@ void CWriter::printModule(Module *M) {
printType(Out, I->getType()->getElementType(), Mang->getValueName(I));
if (I->hasLinkOnceLinkage())
Out << " __attribute__((common))";
else if (I->hasWeakLinkage())
Out << " __attribute__((weak))";
if (!I->getInitializer()->isNullValue()) {
Out << " = " ;
writeOperand(I->getInitializer());
@@ -893,6 +895,8 @@ void CWriter::printFunctionSignature(const Function *F, bool Prototype) {
FunctionInnards << ")";
// Print out the return type and the entire signature for that matter
printType(Out, F->getReturnType(), FunctionInnards.str());
if (F->hasWeakLinkage()) Out << " __attribute((weak))";
}
void CWriter::printFunction(Function *F) {

4
lib/Target/X86/Printer.cpp
View File

@@ -948,7 +948,8 @@ bool Printer::doFinalization(Module &M) {
unsigned Align = TD.getTypeAlignment(C->getType());
if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage())) {
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) {
SwitchSection(O, CurSection, ".data");
if (I->hasInternalLinkage())
O << "\t.local " << name << "\n";
@@ -961,6 +962,7 @@ bool Printer::doFinalization(Module &M) {
} else {
switch (I->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak.
// Nonnull linkonce -> weak
O << "\t.weak " << name << "\n";
SwitchSection(O, CurSection, "");

4
lib/Target/X86/X86AsmPrinter.cpp
View File

@@ -948,7 +948,8 @@ bool Printer::doFinalization(Module &M) {
unsigned Align = TD.getTypeAlignment(C->getType());
if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage())) {
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) {
SwitchSection(O, CurSection, ".data");
if (I->hasInternalLinkage())
O << "\t.local " << name << "\n";
@@ -961,6 +962,7 @@ bool Printer::doFinalization(Module &M) {
} else {
switch (I->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak.
// Nonnull linkonce -> weak
O << "\t.weak " << name << "\n";
SwitchSection(O, CurSection, "");