Fix PEObjectWriter riscv/loongarch relocations: remove addend throws, use targetAddress

Copilot · agocke · Copilot · commit 0ca28991c70f · 2026-03-27T21:02:53.000Z
Agent-Logs-Url: https://github.com/dotnet/runtime/sessions/092c6e3f-2886-45ac-a780-6fdd3ccf61c3 Co-authored-by: agocke <515774+agocke@users.noreply.github.com>
diff --git a/src/coreclr/tools/Common/Compiler/ObjectWriter/PEObjectWriter.cs b/src/coreclr/tools/Common/Compiler/ObjectWriter/PEObjectWriter.cs
@@ -934,11 +934,8 @@ private unsafe void ResolveRelocations(int sectionIndex, List<SymbolicRelocation
                             break;
                         case RelocType.IMAGE_REL_BASED_LOONGARCH64_PC:
                         {
-                            if (addend != 0)
-                            {
-                                throw new NotSupportedException();
-                            }
-                            long delta = ((long)symbolImageOffset - (long)(relocOffset & ~0xfff) + ((long)(symbolImageOffset & 0x800) << 1));
+                            long targetAddress = symbolImageOffset + addend;
+                            long delta = (targetAddress - (long)(relocOffset & ~0xfff) + ((targetAddress & 0x800) << 1));
                             Relocation.WriteValue(reloc.Type, pData, delta);
                             break;
                         }
@@ -947,11 +944,8 @@ private unsafe void ResolveRelocations(int sectionIndex, List<SymbolicRelocation
                         case RelocType.IMAGE_REL_BASED_RISCV64_PCREL_I:
                         case RelocType.IMAGE_REL_BASED_RISCV64_PCREL_S:
                         {
-                            if (addend != 0)
-                            {
-                                throw new NotSupportedException();
-                            }
-                            long delta = (long)symbolImageOffset - (long)relocOffset;
+                            long targetAddress = symbolImageOffset + addend;
+                            long delta = targetAddress - (long)relocOffset;
                             Relocation.WriteValue(reloc.Type, pData, delta);
                             break;
                         }
