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Make linkage weak in certain places

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This commit is contained in:
gingerBill
2024-07-15 12:30:32 +01:00
parent 549311fac9
commit 7d643bcae3
2 changed files with 49 additions and 49 deletions
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15
src/llvm_backend.cpp
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@@ -144,11 +144,14 @@ gb_internal void lb_correct_entity_linkage(lbGenerator *gen) {
LLVMValueRef other_global = nullptr;
if (ec.e->kind == Entity_Variable) {
other_global = LLVMGetNamedGlobal(ec.other_module->mod, ec.cname);
if (other_global) {
LLVMSetLinkage(other_global, LLVMWeakAnyLinkage);
}
} else if (ec.e->kind == Entity_Procedure) {
other_global = LLVMGetNamedFunction(ec.other_module->mod, ec.cname);
}
if (other_global) {
LLVMSetLinkage(other_global, LLVMExternalLinkage);
if (other_global) {
LLVMSetLinkage(other_global, LLVMWeakAnyLinkage);
}
}
}
}
@@ -1437,7 +1440,9 @@ gb_internal bool lb_is_module_empty(lbModule *m) {
}
for (auto g = LLVMGetFirstGlobal(m->mod); g != nullptr; g = LLVMGetNextGlobal(g)) {
if (LLVMGetLinkage(g) == LLVMExternalLinkage) {
LLVMLinkage linkage = LLVMGetLinkage(g);
if (linkage == LLVMExternalLinkage ||
linkage == LLVMWeakAnyLinkage) {
continue;
}
if (!LLVMIsExternallyInitialized(g)) {
@@ -3266,7 +3271,7 @@ gb_internal bool lb_generate_code(lbGenerator *gen) {
LLVMSetLinkage(g.value, LLVMDLLExportLinkage);
LLVMSetDLLStorageClass(g.value, LLVMDLLExportStorageClass);
} else if (!is_foreign) {
LLVMSetLinkage(g.value, USE_SEPARATE_MODULES ? LLVMExternalLinkage : LLVMInternalLinkage);
LLVMSetLinkage(g.value, USE_SEPARATE_MODULES ? LLVMWeakAnyLinkage : LLVMInternalLinkage);
}
lb_set_linkage_from_entity_flags(m, g.value, e->flags);