[PowerPC] Support powerpcle target in LLVMObject [2/5]

[Bdragon28]

Summary

Add object file handling for powerpcle-*-*.

Adjust tests.

[MaskRay]

LGTM.

[Bdragon28]

Fully fix the unit test.

llvm/include/llvm/Object/ELFObjectFile.h

case ELF::EM_HEXAGON:
       return "elf32-hexagon";
     case ELF::EM_LANAI:
       return "elf32-lanai";
     case ELF::EM_MIPS:
       return "elf32-mips";
     case ELF::EM_MSP430:
       return "elf32-msp430";
     case ELF::EM_PPC:
-      return "elf32-powerpc";
+      return (IsLittleEndian ? "elf32-powerpcle" : "elf32-powerpc");
     case ELF::EM_RISCV:
       return "elf32-littleriscv";
     case ELF::EM_CSKY:
       return "elf32-csky";
     case ELF::EM_SPARC:
     case ELF::EM_SPARC32PLUS:
       return "elf32-sparc";
     case ELF::EM_AMDGPU:
case ELF::EM_MIPS:
     case ELF::ELFCLASS64:
       return IsLittleEndian ? Triple::mips64el : Triple::mips64;
     default:
       report_fatal_error("Invalid ELFCLASS!");
     }
   case ELF::EM_MSP430:
     return Triple::msp430;
   case ELF::EM_PPC:
-    return Triple::ppc;
+    return IsLittleEndian ? Triple::ppcle : Triple::ppc;
   case ELF::EM_PPC64:
     return IsLittleEndian ? Triple::ppc64le : Triple::ppc64;
   case ELF::EM_RISCV:
     switch (EF.getHeader().e_ident[ELF::EI_CLASS]) {
     case ELF::ELFCLASS32:
       return Triple::riscv32;
     case ELF::ELFCLASS64:
       return Triple::riscv64;

llvm/lib/Object/RelocationResolver.cpp

if (Obj.isCOFF()) {
 
     // 32-bit object file
     assert(Obj.getBytesInAddress() == 4 &&
            "Invalid word size in object file");
 
     switch (Obj.getArch()) {
     case Triple::x86:
       return {supportsX86, resolveX86};
+    case Triple::ppcle:
     case Triple::ppc:
       return {supportsPPC32, resolvePPC32};
     case Triple::arm:
     case Triple::armeb:
       return {supportsARM, resolveARM};
     case Triple::avr:
       return {supportsAVR, resolveAVR};
     case Triple::lanai:

llvm/test/tools/llvm-objcopy/ELF/binary-output-target.test

 # RUN: llvm-readobj --file-headers %t.i386.o | FileCheck %s --check-prefixes=CHECK,LE,I386,32
 
 # RUN: llvm-objcopy -I binary -O elf64-x86-64 %t.txt %t.x86-64.o
 # RUN: llvm-readobj --file-headers %t.x86-64.o | FileCheck %s --check-prefixes=CHECK,LE,X86-64,64
 
 # RUN: llvm-objcopy -I binary -O elf32-bigmips %t.txt %t.mips.o
 # RUN: llvm-readobj --file-headers %t.mips.o | FileCheck %s --check-prefixes=CHECK,BE,MIPS,32
 
+# RUN: llvm-objcopy -I binary -O elf32-powerpc %t.txt %t.ppc32be.o
+# RUN: llvm-readobj --file-headers %t.ppc32be.o | FileCheck %s --check-prefixes=CHECK,BE,PPC32,PPC32BE,32
+
+# RUN: llvm-objcopy -I binary -O elf32-powerpcle %t.txt %t.ppc32le.o
+# RUN: llvm-readobj --file-headers %t.ppc32le.o | FileCheck %s --check-prefixes=CHECK,LE,PPC32,PPC32LE,32
+
+# RUN: llvm-objcopy -I binary -O elf64-powerpc %t.txt %t.ppc64be.o
+# RUN: llvm-readobj --file-headers %t.ppc64be.o | FileCheck %s --check-prefixes=CHECK,BE,PPC64,PPC64BE,64
+
 # RUN: llvm-objcopy -I binary -O elf64-powerpcle %t.txt %t.ppc64le.o
-# RUN: llvm-readobj --file-headers %t.ppc64le.o | FileCheck %s --check-prefixes=CHECK,LE,PPC64,64
+# RUN: llvm-readobj --file-headers %t.ppc64le.o | FileCheck %s --check-prefixes=CHECK,LE,PPC64,PPC64LE,64
 
 # RUN: llvm-objcopy -I binary -O elf32-littleriscv %t.txt %t.rv32.o
 # RUN: llvm-readobj --file-headers %t.rv32.o | FileCheck %s --check-prefixes=CHECK,LE,RISCV32,32
 
 # RUN: llvm-objcopy -I binary -O elf64-littleriscv %t.txt %t.rv64.o
 # RUN: llvm-readobj --file-headers %t.rv64.o | FileCheck %s --check-prefixes=CHECK,LE,RISCV64,64
 
 # RUN: llvm-objcopy -I binary -O elf32-sparc %t.txt %t.sparc.o

 # 64-SAME:      elf64-
 # AARCH64-SAME: littleaarch64
 # ARM-SAME:     littlearm
 # HEXAGON-SAME: hexagon
 # I386-SAME:    i386
 # MIPS-SAME:    mips{{$}}
 # RISCV32-SAME: riscv{{$}}
 # RISCV64-SAME: riscv{{$}}
-# PPC-SAME:     powerpc{{$}}
-# PPC64le-SAME: powerpc{{$}}
+# PPCBE-SAME:   powerpc{{$}}
+# PPCLE-SAME:   powerpcle{{$}}
 # SPARC-SAME:   sparc
 # SPARCEL-SAME: sparc
 # X86-64-SAME:  x86-64
 
 # AARCH64-NEXT: Arch: aarch64
 # ARM-NEXT:     Arch: arm
 # HEXAGON-NEXT: Arch: hexagon
 # I386-NEXT:    Arch: i386
 # MIPS-NEXT:    Arch: mips{{$}}
-# PPC-NEXT:     Arch: powerpc{{$}}
-# PPC64-NEXT:   Arch: powerpc64le
+# PPC32BE-NEXT: Arch: powerpc{{$}}
+# PPC32LE-NEXT: Arch: powerpcle{{$}}
+# PPC64BE-NEXT: Arch: powerpc64{{$}}
+# PPC64LE-NEXT: Arch: powerpc64le{{$}}
 # RISCV32-NEXT: Arch: riscv32
 # RISCV64-NEXT: Arch: riscv64
 # SPARC-NEXT:   Arch: sparc{{$}}
 # SPARCEL-NEXT: Arch: sparcel
 # X86-64-NEXT:  Arch: x86_64
 
 # 32-NEXT:      AddressSize: 32bit
 # 64-NEXT:      AddressSize: 64bit

 ## In GNU objcopy, e_machine is EM_NONE unless -B is specifid.
 ## It is not very clear why it behaves this way.
 ## We fill in the field regardless of -B.
 # AARCH64-NEXT:   Machine: EM_AARCH64 (0xB7)
 # ARM-NEXT:       Machine: EM_ARM (0x28)
 # HEXAGON-NEXT:   Machine: EM_HEXAGON (0xA4)
 # I386-NEXT:      Machine: EM_386 (0x3)
 # MIPS-NEXT:      Machine: EM_MIPS (0x8)
-# PPC-NEXT:       Machine: EM_PPC (0x14)
+# PPC32-NEXT:     Machine: EM_PPC (0x14)
 # PPC64-NEXT:     Machine: EM_PPC64 (0x15)
 # RISCV32-NEXT:   Machine: EM_RISCV (0xF3)
 # RISCV64-NEXT:   Machine: EM_RISCV (0xF3)
 # SPARC-NEXT:     Machine: EM_SPARC (0x2)
 # SPARCEL-NEXT:   Machine: EM_SPARC (0x2)
 # X86-64-NEXT:    Machine: EM_X86_64 (0x3E)
 
 # CHECK-NEXT:     Version: 1

llvm/test/tools/llvm-objcopy/ELF/cross-arch-headers.test

 # RUN: llvm-readobj --file-headers %t.elf64_aarch64.o | FileCheck %s --check-prefixes=CHECK,LE,AARCH,64,SYSV
 # RUN: llvm-readobj --file-headers %t.elf64_aarch64.dwo | FileCheck %s --check-prefixes=CHECK,LE,AARCH,64,SYSV
 
 # RUN: llvm-objcopy %t.o -O elf64-littleaarch64 %t.elf64_littleaarch64.o --split-dwo=%t.elf64_littleaarch64.dwo
 # RUN: llvm-readobj --file-headers %t.elf64_littleaarch64.o | FileCheck %s --check-prefixes=CHECK,LE,AARCH,64,SYSV
 # RUN: llvm-readobj --file-headers %t.elf64_littleaarch64.dwo | FileCheck %s --check-prefixes=CHECK,LE,AARCH,64,SYSV
 
 # RUN: llvm-objcopy %t.o -O elf32-powerpc %t.elf32_powerpc.o --split-dwo=%t.elf32_powerpc.dwo
-# RUN: llvm-readobj --file-headers %t.elf32_powerpc.o | FileCheck %s --check-prefixes=CHECK,BE,PPC,32,SYSV
-# RUN: llvm-readobj --file-headers %t.elf32_powerpc.dwo | FileCheck %s --check-prefixes=CHECK,BE,PPC,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_powerpc.o | FileCheck %s --check-prefixes=CHECK,BE,PPC32,PPCBE,PPC32BE,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_powerpc.dwo | FileCheck %s --check-prefixes=CHECK,BE,PPC32,PPCBE,PPC32BE,32,SYSV
 
 # RUN: llvm-objcopy %t.o -O elf64-powerpc %t.elf64_powerpc.o --split-dwo=%t.elf64_powerpc.dwo
-# RUN: llvm-readobj --file-headers %t.elf64_powerpc.o | FileCheck %s --check-prefixes=CHECK,BE,PPC64BE,64,SYSV
-# RUN: llvm-readobj --file-headers %t.elf64_powerpc.dwo | FileCheck %s --check-prefixes=CHECK,BE,PPC64BE,64,SYSV
+# RUN: llvm-readobj --file-headers %t.elf64_powerpc.o | FileCheck %s --check-prefixes=CHECK,BE,PPC64,PPCBE,PPC64BE,64,SYSV
+# RUN: llvm-readobj --file-headers %t.elf64_powerpc.dwo | FileCheck %s --check-prefixes=CHECK,BE,PPC64,PPCBE,PPC64BE,64,SYSV
 
 # RUN: llvm-objcopy %t.o -O elf32-powerpcle %t.elf32_ppcle.o --split-dwo=%t.elf32_ppcle.dwo
-# RUN: llvm-readobj --file-headers %t.elf32_ppcle.o | FileCheck %s --check-prefixes=CHECK,LE,PPC,32,SYSV
-# RUN: llvm-readobj --file-headers %t.elf32_ppcle.dwo | FileCheck %s --check-prefixes=CHECK,LE,PPC,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_ppcle.o | FileCheck %s --check-prefixes=CHECK,LE,PPC32,PPCLE,PPC32LE,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_ppcle.dwo | FileCheck %s --check-prefixes=CHECK,LE,PPC32,PPCLE,PPC32LE,32,SYSV
+
+# RUN: llvm-objcopy %t.o -O elf64-powerpcle %t.elf64_ppcle.o --split-dwo=%t.elf64_ppcle.dwo
+# RUN: llvm-readobj --file-headers %t.elf64_ppcle.o | FileCheck %s --check-prefixes=CHECK,LE,PPC64,PPCLE,PPC64LE,64,SYSV
+# RUN: llvm-readobj --file-headers %t.elf64_ppcle.dwo | FileCheck %s --check-prefixes=CHECK,LE,PPC64,PPCLE,PPC64LE,64,SYSV
 
 # RUN: llvm-objcopy %t.o -O elf32-x86-64 %t.elf32_x86_64.o --split-dwo=%t.elf32_x86_64.dwo
 # RUN: llvm-readobj --file-headers %t.elf32_x86_64.o | FileCheck %s --check-prefixes=CHECK,LE,X86-64,32,SYSV
 # RUN: llvm-readobj --file-headers %t.elf32_x86_64.dwo | FileCheck %s --check-prefixes=CHECK,LE,X86-64,32,SYSV
 
-# RUN: llvm-objcopy %t.o -O elf64-powerpcle %t.elf64_ppcle.o --split-dwo=%t.elf64_ppcle.dwo
-# RUN: llvm-readobj --file-headers %t.elf64_ppcle.o | FileCheck %s --check-prefixes=CHECK,LE,PPC64LE,64,SYSV
-# RUN: llvm-readobj --file-headers %t.elf64_ppcle.dwo | FileCheck %s --check-prefixes=CHECK,LE,PPC64LE,64,SYSV
-
 # RUN: llvm-objcopy %t.o -O elf32-littleriscv %t.elf32_littleriscv.o --split-dwo=%t.elf32_littleriscv.dwo
 # RUN: llvm-readobj --file-headers %t.elf32_littleriscv.o | FileCheck %s --check-prefixes=CHECK,LE,RISCV32,32,SYSV
 # RUN: llvm-readobj --file-headers %t.elf32_littleriscv.dwo | FileCheck %s --check-prefixes=CHECK,LE,RISCV32,32,SYSV
 
 # RUN: llvm-objcopy %t.o -O elf64-littleriscv %t.elf64_littleriscv.o --split-dwo=%t.elf64_littleriscv.dwo
 # RUN: llvm-readobj --file-headers %t.elf64_littleriscv.o | FileCheck %s --check-prefixes=CHECK,LE,RISCV64,64,SYSV
 # RUN: llvm-readobj --file-headers %t.elf64_littleriscv.dwo | FileCheck %s --check-prefixes=CHECK,LE,RISCV64,64,SYSV
 

 # 32-SAME:      elf32-
 # 64-SAME:      elf64-
 # I386-SAME:    i386
 # IAMCU-SAME:   iamcu
 # AARCH-SAME:   aarch64
 # ARM-SAME:     littlearm
 # HEXAGON-SAME: hexagon
 # MIPS-SAME:    mips
-# PPC-SAME:     powerpc{{$}}
-# PPC64BE-SAME: powerpc{{$}}
-# PPC64LE-SAME: powerpcle{{$}}
+# PPCBE-SAME:   powerpc{{$}}
+# PPCLE-SAME:   powerpcle{{$}}
 # RISCV32-SAME: riscv{{$}}
 # RISCV64-SAME: riscv{{$}}
 # SPARC-SAME:   sparc
 # X86-64-SAME:  x86-64
 # DEFAULT-SAME: unknown
 
 # I386-NEXT:     Arch: i386
 # IAMCU-NEXT:    Arch: i386
 # AARCH-NEXT:    Arch: aarch64
 # ARM-NEXT:      Arch: arm
 # HEXAGON-NEXT:  Arch: hexagon
 # MIPSBE-NEXT:   Arch: mips{{$}}
 # MIPSLE-NEXT:   Arch: mipsel{{$}}
 # MIPS64BE-NEXT: Arch: mips64{{$}}
 # MIPS64LE-NEXT: Arch: mips64el{{$}}
-# PPC-NEXT:      Arch: powerpc{{$}}
+# PPC32BE-NEXT:  Arch: powerpc{{$}}
+# PPC32LE-NEXT:  Arch: powerpcle{{$}}
 # PPC64BE-NEXT:  Arch: powerpc64{{$}}
-# PPC64LE-NEXT:  Arch: powerpc64le
+# PPC64LE-NEXT:  Arch: powerpc64le{{$}}
 # RISCV32-NEXT:  Arch: riscv32
 # RISCV64-NEXT:  Arch: riscv64
 # SPARC-NEXT:    Arch: sparc{{$}}
 # SPARCEL-NEXT:  Arch: sparcel
 # X86-64-NEXT:   Arch: x86_64
 # DEFAULT-NEXT:  Arch: unknown
 
 # 32-NEXT:      AddressSize: 32bit

 # DEFAULT: OS/ABI: Standalone (0xFF)
 
 # AARCH:   Machine: EM_AARCH64 (0xB7)
 # ARM:     Machine: EM_ARM (0x28)
 # HEXAGON: Machine: EM_HEXAGON (0xA4)
 # I386:    Machine: EM_386 (0x3)
 # IAMCU:   Machine: EM_IAMCU (0x6)
 # MIPS:    Machine: EM_MIPS (0x8)
-# PPC:     Machine: EM_PPC (0x14)
+# PPC32:   Machine: EM_PPC (0x14)
 # PPC64:   Machine: EM_PPC64 (0x15)
 # RISCV32: Machine: EM_RISCV (0xF3)
 # RISCV64: Machine: EM_RISCV (0xF3)
 # SPARC:   Machine: EM_SPARC (0x2)
 # X86-64:  Machine: EM_X86_64 (0x3E)
 
 # 32: HeaderSize: 52
 # 64: HeaderSize: 64
 
 # 32: SectionHeaderEntrySize: 40
 # 64: SectionHeaderEntrySize: 64

llvm/test/tools/llvm-objdump/ELF/PowerPC/branch-offset.s

-# RUN: llvm-mc -triple=powerpc -filetype=obj %s -o %t.32.o
-# RUN: llvm-objdump -d --no-show-raw-insn %t.32.o | FileCheck --check-prefixes=ELF32,CHECK %s
+# RUN: llvm-mc -triple=powerpc -filetype=obj %s -o %t.32be.o
+# RUN: llvm-objdump -d --no-show-raw-insn %t.32be.o | FileCheck --check-prefixes=ELF32,CHECK %s
 
-# RUN: llvm-mc -triple=powerpc64le -filetype=obj %s -o %t.64.o
-# RUN: llvm-objdump -d --no-show-raw-insn %t.64.o | FileCheck --check-prefixes=ELF64,CHECK %s
+# RUN: llvm-mc -triple=powerpcle -filetype=obj %s -o %t.32le.o
+# RUN: llvm-objdump -d --no-show-raw-insn %t.32le.o | FileCheck --check-prefixes=ELF32,CHECK %s
 
-# RUN: llvm-mc -triple=powerpc64 -filetype=obj %s -o %t.64.o
-# RUN: llvm-objdump -d --no-show-raw-insn %t.64.o | FileCheck --check-prefixes=ELF64,CHECK %s
+# RUN: llvm-mc -triple=powerpc64 -filetype=obj %s -o %t.64be.o
+# RUN: llvm-objdump -d --no-show-raw-insn %t.64be.o | FileCheck --check-prefixes=ELF64,CHECK %s
+
+# RUN: llvm-mc -triple=powerpc64le -filetype=obj %s -o %t.64le.o
+# RUN: llvm-objdump -d --no-show-raw-insn %t.64le.o | FileCheck --check-prefixes=ELF64,CHECK %s
 
 # CHECK-LABEL: <bl>:
 # ELF32-NEXT:   bl 0xfffffffc
 # ELF64-NEXT:   bl 0xfffffffffffffffc
 # CHECK-NEXT:   bl 0x4
 # CHECK-NEXT:   bl 0xc
 
 bl:

llvm/unittests/Object/ELFObjectFileTest.cpp

TEST(ELFObjectFileTest, MachineTestForPPC64) {
   size_t I = 0;
   for (const DataForTest &D : generateData(ELF::EM_PPC64)) {
     checkFormatAndArch(D, Formats[I], Archs[I]);
     ++I;
   }
 }
 
 TEST(ELFObjectFileTest, MachineTestForPPC) {
-  std::array<StringRef, 4> Formats = {"elf32-powerpc", "elf32-powerpc",
+  std::array<StringRef, 4> Formats = {"elf32-powerpcle", "elf32-powerpc",
                                       "elf64-unknown", "elf64-unknown"};
   size_t I = 0;
   for (const DataForTest &D : generateData(ELF::EM_PPC))
     checkFormatAndArch(D, Formats[I++], Triple::ppc);
 }
 
 TEST(ELFObjectFileTest, MachineTestForRISCV) {
   std::array<StringRef, 4> Formats = {"elf32-littleriscv", "elf32-littleriscv",