for (const auto &pair : config->aliasedSymbols) {
if (const auto &sym = symtab->find(pair.first)) {
if (const auto &defined = dyn_cast<Defined>(sym)) {
- symtab->aliasDefined(defined, pair.second, defined->getFile());
+ symtab->aliasDefined(defined, pair.second, defined->getFile())
+ ->noDeadStrip = true;
} else {
error("TODO: support aliasing to symbols of kind " +
Twine(sym->kind()));
// FIXME: When we implement these flags, make symbols from them GC
// roots:
// * -reexported_symbol(s_list)
- // * -alias(-list)
+ // * -alias_list
// * -init
// In dylibs and bundles and in executables with -export_dynamic,
# MAIN: [[#%x,FOO_ADDR:]] T _foo
# MAIN: [[#FOO_ADDR]] T _main
-# RUN: %lld -alias _foo _bar -alias _main _fake_main %t/main.o %t/foo.o -o %t/multiple.o
+## Verify dead stripping doesn't remove the aliased symbol. This behavior differs
+## from ld64 where it actually does dead strip only the alias, not the original symbol.
+# RUN: %lld -dead_strip -alias _foo _bar -alias _main _fake_main %t/main.o %t/foo.o -o %t/multiple.o
# RUN: llvm-nm %t/multiple.o | FileCheck %s --check-prefix=MULTIPLE
# MULTIPLE: [[#%x,FOO_ADDR:]] T _bar
# MULTIPLE: [[#MAIN_ADDR]] T _main
#--- foo.s
+.subsections_via_symbols
.globl _foo
_foo:
ret
#--- main.s
+.subsections_via_symbols
.globl _main
_main:
ret