[yaml2obj] Support ELF x86 relocations.

llvm-svn: 208228

llvm/lib/Object/ELFYAML.cpp

@@ -570,6 +570,49 @@ void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
     ECase(R_HEX_TPREL_16_X)
     ECase(R_HEX_TPREL_11_X)
     break;
+  case ELF::EM_386:
+    ECase(R_386_NONE)
+    ECase(R_386_32)
+    ECase(R_386_PC32)
+    ECase(R_386_GOT32)
+    ECase(R_386_PLT32)
+    ECase(R_386_COPY)
+    ECase(R_386_GLOB_DAT)
+    ECase(R_386_JUMP_SLOT)
+    ECase(R_386_RELATIVE)
+    ECase(R_386_GOTOFF)
+    ECase(R_386_GOTPC)
+    ECase(R_386_32PLT)
+    ECase(R_386_TLS_TPOFF)
+    ECase(R_386_TLS_IE)
+    ECase(R_386_TLS_GOTIE)
+    ECase(R_386_TLS_LE)
+    ECase(R_386_TLS_GD)
+    ECase(R_386_TLS_LDM)
+    ECase(R_386_16)
+    ECase(R_386_PC16)
+    ECase(R_386_8)
+    ECase(R_386_PC8)
+    ECase(R_386_TLS_GD_32)
+    ECase(R_386_TLS_GD_PUSH)
+    ECase(R_386_TLS_GD_CALL)
+    ECase(R_386_TLS_GD_POP)
+    ECase(R_386_TLS_LDM_32)
+    ECase(R_386_TLS_LDM_PUSH)
+    ECase(R_386_TLS_LDM_CALL)
+    ECase(R_386_TLS_LDM_POP)
+    ECase(R_386_TLS_LDO_32)
+    ECase(R_386_TLS_IE_32)
+    ECase(R_386_TLS_LE_32)
+    ECase(R_386_TLS_DTPMOD32)
+    ECase(R_386_TLS_DTPOFF32)
+    ECase(R_386_TLS_TPOFF32)
+    ECase(R_386_TLS_GOTDESC)
+    ECase(R_386_TLS_DESC_CALL)
+    ECase(R_386_TLS_DESC)
+    ECase(R_386_IRELATIVE)
+    ECase(R_386_NUM)
+    break;
   default:
     llvm_unreachable("Unsupported architecture");
   }

llvm/test/Object/X86/yaml2obj-elf-x86-rel.yaml

@@ -0,0 +1,43 @@
+# RUN: yaml2obj -format=elf %s > %t
+# RUN: llvm-readobj -r %t | FileCheck %s
+
+# CHECK:      Relocations [
+# CHECK-NEXT:   Section (2) .rel.text {
+# CHECK-NEXT:     0x0 R_386_32 main 0x0
+# CHECK-NEXT:   }
+# CHECK-NEXT: ]
+
+FileHeader:
+  Class:           ELFCLASS32
+  Data:            ELFDATA2LSB
+  Type:            ET_REL
+  Machine:         EM_386
+Sections:
+  - Type:            SHT_PROGBITS
+    Name:            .text
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
+    AddressAlign:    0x04
+    Content:         0000000000000000
+  - Type:            SHT_REL
+    Name:            .rel.text
+    Type:            SHT_REL
+    Link:            .symtab
+    Info:            .text
+    AddressAlign:    0x04
+    Relocations:
+      - Offset:          0
+        Symbol:          main
+        Type:            R_386_32
+
+Symbols:
+  Local:
+    - Name:            .text
+      Type:            STT_SECTION
+      Section:         .text
+
+  Global:
+    - Name:            main
+      Type:            STT_FUNC
+      Section:         .text
+      Size:            0x08