[llvm-objcopy] Support full list of bfd targets that lld uses.

Summary:
This change takes the full list of bfd targets that lld supports (see `ScriptParser.cpp`), including generic handling for `*-freebsd` targets (which uses the same settings but with a FreeBSD OSABI). In particular this adds mips support for `--output-target` (but not yet via `--binary-architecture`).

lld and llvm-objcopy use their own different custom data structures, so I'd prefer to check this in as-is (add support directly in llvm-objcopy, including all the test coverage) and do a separate NFC patch(s) that consolidate the two by putting this mapping into libobject.

See [[ https://bugs.llvm.org/show_bug.cgi?id=41462 | PR41462 ]].

Reviewers: jhenderson, jakehehrlich, espindola, alexshap, arichardson

Reviewed By: arichardson

Subscribers: fedor.sergeev, emaste, sdardis, krytarowski, atanasyan, llvm-commits, MaskRay, arichardson

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60773

llvm-svn: 358562

2 files changed, 101 insertions, 25 deletions

diff --git a/llvm/test/tools/llvm-objcopy/ELF/bad-output-format.test b/llvm/test/tools/llvm-objcopy/ELF/bad-output-format.test
index f190a16a2b5..c24413a2b19 100644
--- a/llvm/test/tools/llvm-objcopy/ELF/bad-output-format.test
+++ b/llvm/test/tools/llvm-objcopy/ELF/bad-output-format.test
@@ -3,6 +3,11 @@
 # RUN: not llvm-objcopy -O xyz %t.o %t.2.o 2>&1 \
 # RUN:   | FileCheck %s --check-prefix=BAD-OUTPUT-FORMAT
 
+# FreeBSD has some special output format parsing that looks up the name without
+# the trailing "-freebsd". Make sure we include the full output format name.
+# RUN: not llvm-objcopy -O xyz-freebsd %t.o %t.2.o 2>&1 \
+# RUN:   | FileCheck %s --check-prefix=BAD-OUTPUT-FORMAT-BSD
+
 !ELF
 FileHeader:
   Class:           ELFCLASS32
@@ -11,3 +16,4 @@ FileHeader:
   Machine:         EM_386
 
 # BAD-OUTPUT-FORMAT: Invalid output format: 'xyz'
+# BAD-OUTPUT-FORMAT-BSD: Invalid output format: 'xyz-freebsd'
diff --git a/llvm/test/tools/llvm-objcopy/ELF/cross-arch-headers.test b/llvm/test/tools/llvm-objcopy/ELF/cross-arch-headers.test
index 3cb0d4eab11..af0379c79f1 100644
--- a/llvm/test/tools/llvm-objcopy/ELF/cross-arch-headers.test
+++ b/llvm/test/tools/llvm-objcopy/ELF/cross-arch-headers.test
@@ -6,36 +6,88 @@
 
 # Without --output-format, the format should match the input.
 # RUN: llvm-objcopy %t.o %t.default.o --split-dwo=%t.default.dwo
-# RUN: llvm-readobj --file-headers %t.default.o | FileCheck %s --check-prefixes=CHECK,DEFAULT,32
-# RUN: llvm-readobj --file-headers %t.default.dwo | FileCheck %s --check-prefixes=CHECK,DEFAULT,32
+# RUN: llvm-readobj --file-headers %t.default.o | FileCheck %s --check-prefixes=CHECK,LE,DEFAULT,32
+# RUN: llvm-readobj --file-headers %t.default.dwo | FileCheck %s --check-prefixes=CHECK,LE,DEFAULT,32
 
 # RUN: llvm-objcopy %t.o -O elf32-i386 %t.elf32_i386.o --split-dwo=%t.elf32_i386.dwo
-# RUN: llvm-readobj --file-headers %t.elf32_i386.o | FileCheck %s --check-prefixes=CHECK,I386,32,SYSV
-# RUN: llvm-readobj --file-headers %t.elf32_i386.dwo | FileCheck %s --check-prefixes=CHECK,I386,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_i386.o | FileCheck %s --check-prefixes=CHECK,LE,I386,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_i386.dwo | FileCheck %s --check-prefixes=CHECK,LE,I386,32,SYSV
 
 # RUN: llvm-objcopy %t.o -O elf32-i386-freebsd %t.elf32_i386_freebsd.o --split-dwo=%t.elf32_i386_freebsd.dwo
-# RUN: llvm-readobj --file-headers %t.elf32_i386_freebsd.o | FileCheck %s --check-prefixes=CHECK,I386,32,FREEBSD
-# RUN: llvm-readobj --file-headers %t.elf32_i386_freebsd.dwo | FileCheck %s --check-prefixes=CHECK,I386,32,FREEBSD
+# RUN: llvm-readobj --file-headers %t.elf32_i386_freebsd.o | FileCheck %s --check-prefixes=CHECK,LE,I386,32,FREEBSD
+# RUN: llvm-readobj --file-headers %t.elf32_i386_freebsd.dwo | FileCheck %s --check-prefixes=CHECK,LE,I386,32,FREEBSD
+
+# RUN: llvm-objcopy %t.o -O elf32-iamcu %t.elf32_iamcu.o --split-dwo=%t.elf32_iamcu.dwo
+# RUN: llvm-readobj --file-headers %t.elf32_iamcu.o | FileCheck %s --check-prefixes=CHECK,LE,IAMCU,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_iamcu.dwo | FileCheck %s --check-prefixes=CHECK,LE,IAMCU,32,SYSV
+
+# RUN: llvm-objcopy %t.o -O elf32-littlearm %t.elf32_littlearm.o --split-dwo=%t.elf32_littlearm.dwo
+# RUN: llvm-readobj --file-headers %t.elf32_littlearm.o | FileCheck %s --check-prefixes=CHECK,LE,ARM,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_littlearm.dwo | FileCheck %s --check-prefixes=CHECK,LE,ARM,32,SYSV
+
+# RUN: llvm-objcopy %t.o -O elf64-aarch64 %t.elf64_aarch64.o --split-dwo=%t.elf64_aarch64.dwo
+# 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-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-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,PPC,32,SYSV
-# RUN: llvm-readobj --file-headers %t.elf32_ppcle.dwo | FileCheck %s --check-prefixes=CHECK,PPC,32,SYSV
+# 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-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,X86-64,32,SYSV
-# RUN: llvm-readobj --file-headers %t.elf32_x86_64.dwo | FileCheck %s --check-prefixes=CHECK,X86-64,32,SYSV
+# 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,PPC64,64,SYSV
-# RUN: llvm-readobj --file-headers %t.elf64_ppcle.dwo | FileCheck %s --check-prefixes=CHECK,PPC64,64,SYSV
+# 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 elf64-x86-64 %t.elf64_x86_64.o --split-dwo=%t.elf64_x86_64.dwo
-# RUN: llvm-readobj --file-headers %t.elf64_x86_64.o | FileCheck %s --check-prefixes=CHECK,X86-64,64,SYSV
-# RUN: llvm-readobj --file-headers %t.elf64_x86_64.dwo | FileCheck %s --check-prefixes=CHECK,X86-64,64,SYSV
+# RUN: llvm-readobj --file-headers %t.elf64_x86_64.o | FileCheck %s --check-prefixes=CHECK,LE,X86-64,64,SYSV
+# RUN: llvm-readobj --file-headers %t.elf64_x86_64.dwo | FileCheck %s --check-prefixes=CHECK,LE,X86-64,64,SYSV
 
 # RUN: llvm-objcopy %t.o -O elf64-x86-64-freebsd %t.elf64_x86_64_freebsd.o --split-dwo=%t.elf64_x86_64_freebsd.dwo
-# RUN: llvm-readobj --file-headers %t.elf64_x86_64_freebsd.o | FileCheck %s --check-prefixes=CHECK,X86-64,64,FREEBSD
-# RUN: llvm-readobj --file-headers %t.elf64_x86_64_freebsd.dwo | FileCheck %s --check-prefixes=CHECK,X86-64,64,FREEBSD
+# RUN: llvm-readobj --file-headers %t.elf64_x86_64_freebsd.o | FileCheck %s --check-prefixes=CHECK,LE,X86-64,64,FREEBSD
+# RUN: llvm-readobj --file-headers %t.elf64_x86_64_freebsd.dwo | FileCheck %s --check-prefixes=CHECK,LE,X86-64,64,FREEBSD
+
+# RUN: llvm-objcopy %t.o -O elf32-tradbigmips %t.elf32_tradbigmips.o --split-dwo=%t.elf32_tradbigmips.dwo
+# RUN: llvm-readobj --file-headers %t.elf32_tradbigmips.o | FileCheck %s --check-prefixes=CHECK,BE,MIPS,MIPSBE,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_tradbigmips.dwo | FileCheck %s --check-prefixes=CHECK,BE,MIPS,MIPSBE,32,SYSV
+
+# RUN: llvm-objcopy %t.o -O elf32-bigmips %t.elf32_bigmips.o --split-dwo=%t.elf32_bigmips.dwo
+# RUN: llvm-readobj --file-headers %t.elf32_bigmips.o | FileCheck %s --check-prefixes=CHECK,BE,MIPS,MIPSBE,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_bigmips.dwo | FileCheck %s --check-prefixes=CHECK,BE,MIPS,MIPSBE,32,SYSV
+
+# RUN: llvm-objcopy %t.o -O elf32-ntradbigmips %t.elf32_ntradbigmips.o --split-dwo=%t.elf32_ntradbigmips.dwo
+# RUN: llvm-readobj --file-headers %t.elf32_ntradbigmips.o | FileCheck %s --check-prefixes=CHECK,BE,MIPS,MIPSBE,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_ntradbigmips.dwo | FileCheck %s --check-prefixes=CHECK,BE,MIPS,MIPSBE,32,SYSV
+
+# RUN: llvm-objcopy %t.o -O elf32-tradlittlemips %t.elf32_tradlittlemips.o --split-dwo=%t.elf32_tradlittlemips.dwo
+# RUN: llvm-readobj --file-headers %t.elf32_tradlittlemips.o | FileCheck %s --check-prefixes=CHECK,LE,MIPS,MIPSLE,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_tradlittlemips.dwo | FileCheck %s --check-prefixes=CHECK,LE,MIPS,MIPSLE,32,SYSV
+
+# RUN: llvm-objcopy %t.o -O elf32-ntradlittlemips %t.elf32_ntradlittlemips.o --split-dwo=%t.elf32_ntradlittlemips.dwo
+# RUN: llvm-readobj --file-headers %t.elf32_ntradlittlemips.o | FileCheck %s --check-prefixes=CHECK,LE,MIPS,MIPSLE,32,SYSV
+# RUN: llvm-readobj --file-headers %t.elf32_ntradlittlemips.dwo | FileCheck %s --check-prefixes=CHECK,LE,MIPS,MIPSLE,32,SYSV
+
+# RUN: llvm-objcopy %t.o -O elf64-tradbigmips %t.elf64_tradbigmips.o --split-dwo=%t.elf64_tradbigmips.dwo
+# RUN: llvm-readobj --file-headers %t.elf64_tradbigmips.o | FileCheck %s --check-prefixes=CHECK,BE,MIPS,MIPS64BE,64,SYSV
+# RUN: llvm-readobj --file-headers %t.elf64_tradbigmips.dwo | FileCheck %s --check-prefixes=CHECK,BE,MIPS,MIPS64BE,64,SYSV
+
+# RUN: llvm-objcopy %t.o -O elf64-tradlittlemips %t.elf64_tradlittlemips.o --split-dwo=%t.elf64_tradlittlemips.dwo
+# RUN: llvm-readobj --file-headers %t.elf64_tradlittlemips.o | FileCheck %s --check-prefixes=CHECK,LE,MIPS,MIPS64LE,64,SYSV
+# RUN: llvm-readobj --file-headers %t.elf64_tradlittlemips.dwo | FileCheck %s --check-prefixes=CHECK,LE,MIPS,MIPS64LE,64,SYSV
 
 !ELF
 FileHeader:
@@ -68,29 +120,47 @@ Symbols:
 # 32-SAME:      ELF32-
 # 64-SAME:      ELF64-
 # I386-SAME:    i386
+# IAMCU-SAME:   iamcu
+# AARCH-SAME:   aarch64
+# ARM-SAME:     arm-little
+# MIPS-SAME:    mips
 # PPC-SAME:     ppc{{$}}
-# PPC64-SAME:   ppc64
+# PPC64BE-SAME: ppc64{{$}}
+# PPC64LE-SAME: ppc64{{$}}
 # X86-64-SAME:  x86-64
 # DEFAULT-SAME: unknown
 
-# I386-NEXT:    Arch: i386
-# PPC-NEXT:     Arch: powerpc{{$}}
-# PPC64-NEXT:   Arch: powerpc64le
-# X86-64-NEXT:  Arch: x86_64
-# DEFAULT-NEXT: Arch: unknown
+# I386-NEXT:     Arch: i386
+# IAMCU-NEXT:    Arch: i386
+# AARCH-NEXT:    Arch: aarch64
+# ARM-NEXT:      Arch: arm
+# MIPSBE-NEXT:   Arch: mips{{$}}
+# MIPSLE-NEXT:   Arch: mipsel{{$}}
+# MIPS64BE-NEXT: Arch: mips64{{$}}
+# MIPS64LE-NEXT: Arch: mips64el{{$}}
+# PPC-NEXT:      Arch: powerpc{{$}}
+# PPC64BE-NEXT:  Arch: powerpc64{{$}}
+# PPC64LE-NEXT:  Arch: powerpc64le
+# X86-64-NEXT:   Arch: x86_64
+# DEFAULT-NEXT:  Arch: unknown
 
 # 32-NEXT:      AddressSize: 32bit
 # 64-NEXT:      AddressSize: 64bit
 
-# 32:     Class: 32-bit
-# 64:     Class: 64-bit
-# CHECK:  DataEncoding: LittleEndian
+# 32: Class: 32-bit
+# 64: Class: 64-bit
+# LE: DataEncoding: LittleEndian
+# BE: DataEncoding: BigEndian
 
 # SYSV:    OS/ABI: SystemV (0x0)
 # FREEBSD: OS/ABI: FreeBSD (0x9)
 # DEFAULT: OS/ABI: Standalone (0xFF)
 
+# AARCH:  Machine: EM_AARCH64 (0xB7)
+# ARM:    Machine: EM_ARM (0x28)
 # I386:   Machine: EM_386 (0x3)
+# IAMCU:  Machine: EM_IAMCU (0x6)
+# MIPS:   Machine: EM_MIPS (0x8)
 # PPC:    Machine: EM_PPC (0x14)
 # PPC64:  Machine: EM_PPC64 (0x15)
 # X86-64: Machine: EM_X86_64 (0x3E)