options/rtdl: Implement R_IRELATIVE relocation

managarm · Feb 4, 2024 · ee72694 · ee72694
1 parent 84d7a13
commit ee72694
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/options/rtdl/generic/linker.cpp b/options/rtdl/generic/linker.cpp
@@ -1530,6 +1530,15 @@ void Loader::_processRelocations(Relocation &rel) {
 		rel.relocate(rel.object()->baseAddress + rel.addend_rel());
 	} break;
 
+// TODO: R_IRELATIVE also exists on other architectures but will likely need a different implementation.
+#if defined(__x86_64__)
+	case R_IRELATIVE: {
+		uintptr_t addr = rel.object()->baseAddress + rel.addend_rel();
+		uintptr_t (*fn)() = reinterpret_cast<uintptr_t (*)()>(addr);
+		rel.relocate(fn());
+	} break;
+#endif
+
 	// DTPMOD and DTPREL are dynamic TLS relocations (for __tls_get_addr()).
 	// TPOFF is a relocation to the initial TLS model.
 	case R_TLS_DTPMOD: {