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Modified the logic so that library objects with main() are only linked in

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if the program currently has main undefined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10597 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
John Criswell 2003-12-23 20:27:14 +00:00
parent a989b234bd
commit 368751f2b7
2 changed files with 14 additions and 12 deletions
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13
lib/Linker/LinkArchives.cpp
View File

@ -202,11 +202,14 @@ static bool LinkInArchive(Module *M,
bool ObjectRequired = false;
//
// If the object defines main(), then it is automatically required.
// Otherwise, look to see if it defines a symbol that is currently
// undefined.
// If the object defines main() and the program currently has main()
// undefined, then automatically link in the module. Otherwise, look to
// see if it defines a symbol that is currently undefined.
//
if ((DefSymbols.find ("main")) == DefSymbols.end()) {
if ((M->getMainFunction() == NULL) &&
((DefSymbols.find ("main")) != DefSymbols.end())) {
ObjectRequired = true;
} else {
for (std::set<std::string>::iterator I = UndefinedSymbols.begin(),
E = UndefinedSymbols.end(); I != E; ++I)
if (DefSymbols.count(*I)) {
@ -217,8 +220,6 @@ static bool LinkInArchive(Module *M,
ObjectRequired = true;
break;
}
} else {
ObjectRequired = true;
}
// We DO need to link this object into the program...

13
tools/gccld/Linker.cpp
View File

@ -202,11 +202,14 @@ static bool LinkInArchive(Module *M,
bool ObjectRequired = false;
//
// If the object defines main(), then it is automatically required.
// Otherwise, look to see if it defines a symbol that is currently
// undefined.
// If the object defines main() and the program currently has main()
// undefined, then automatically link in the module. Otherwise, look to
// see if it defines a symbol that is currently undefined.
//
if ((DefSymbols.find ("main")) == DefSymbols.end()) {
if ((M->getMainFunction() == NULL) &&
((DefSymbols.find ("main")) != DefSymbols.end())) {
ObjectRequired = true;
} else {
for (std::set<std::string>::iterator I = UndefinedSymbols.begin(),
E = UndefinedSymbols.end(); I != E; ++I)
if (DefSymbols.count(*I)) {
@ -217,8 +220,6 @@ static bool LinkInArchive(Module *M,
ObjectRequired = true;
break;
}
} else {
ObjectRequired = true;
}
// We DO need to link this object into the program...