Implements low-level object file format specific output for COFF and

ELF with support for:

- File headers
- Section headers + data
- Relocations
- Symbols
- Unwind data (only COFF/Win64)

The output format follows a few rules:
- Values are almost always output one per line (as elf-dump/coff-dump already do). - Many values are translated to something readable (like enum names), with the raw value in parentheses.
- Hex numbers are output in uppercase, prefixed with "0x".
- Flags are sorted alphabetically.
- Lists and groups are always delimited.

Example output:
---------- snip ----------
Sections [
  Section {
    Index: 1
    Name: .text (5)
    Type: SHT_PROGBITS (0x1)
    Flags [ (0x6)
      SHF_ALLOC (0x2)
      SHF_EXECINSTR (0x4)
    ]
    Address: 0x0
    Offset: 0x40
    Size: 33
    Link: 0
    Info: 0
    AddressAlignment: 16
    EntrySize: 0
    Relocations [
      0x6 R_386_32 .rodata.str1.1 0x0
      0xB R_386_PC32 puts 0x0
      0x12 R_386_32 .rodata.str1.1 0x0
      0x17 R_386_PC32 puts 0x0
    ]
    SectionData (
      0000: 83EC04C7 04240000 0000E8FC FFFFFFC7  |.....$..........|
      0010: 04240600 0000E8FC FFFFFF31 C083C404  |.$.........1....|
      0020: C3                                   |.|
    )
  }
]
---------- snip ----------

Relocations and symbols can be output standalone or together with the section header as displayed in the example.
This feature set supports all tests in test/MC/COFF and test/MC/ELF (and I suspect all additional tests using elf-dump), making elf-dump and coff-dump deprecated.

Patch by Nico Rieck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178679 91177308-0d34-0410-b5e6-96231b3b80d8

13 files changed, 484 insertions, 0 deletions

diff --git a/test/tools/llvm-readobj/Inputs/trivial.ll b/test/tools/llvm-readobj/Inputs/trivial.ll
new file mode 100644
index 0000000000..2cd7ec89e2
--- /dev/null
+++ b/test/tools/llvm-readobj/Inputs/trivial.ll
@@ -0,0 +1,19 @@
+; llc -mtriple=i386-pc-win32 trivial.ll -filetype=obj -o trivial-object-test.coff-i386
+; llc -mtriple=x86_64-pc-win32 trivial.ll -filetype=obj -o trivial-object-test.coff-x86-64
+; llc -mtriple=i386-linux-gnu trivial.ll -filetype=obj -o trivial-object-test.elf-i386 -relocation-model=pic
+; llc -mtriple=x86_64-linux-gnu trivial.ll -filetype=obj -o trivial-object-test.elf-x86-64 -relocation-model=pic
+; llc -mtriple=i386-apple-darwin10 trivial.ll -filetype=obj -o trivial-object-test.macho-i386 -relocation-model=pic
+; llc -mtriple=x86_64-apple-darwin10 trivial.ll -filetype=obj -o trivial-object-test.macho-x86-64 -relocation-model=pic
+
+@.str = private unnamed_addr constant [13 x i8] c"Hello World\0A\00", align 1
+
+define i32 @main() nounwind {
+entry:
+  %call = tail call i32 @puts(i8* getelementptr inbounds ([13 x i8]* @.str, i32 0, i32 0)) nounwind
+  tail call void bitcast (void (...)* @SomeOtherFunction to void ()*)() nounwind
+  ret i32 0
+}
+
+declare i32 @puts(i8* nocapture) nounwind
+
+declare void @SomeOtherFunction(...)
diff --git a/test/tools/llvm-readobj/Inputs/trivial.obj.coff-i386 b/test/tools/llvm-readobj/Inputs/trivial.obj.coff-i386
new file mode 100644
index 0000000000..282e5699a7
--- /dev/null
+++ b/test/tools/llvm-readobj/Inputs/trivial.obj.coff-i386
diff --git a/test/tools/llvm-readobj/Inputs/trivial.obj.coff-x86-64 b/test/tools/llvm-readobj/Inputs/trivial.obj.coff-x86-64
new file mode 100644
index 0000000000..8a7060e610
--- /dev/null
+++ b/test/tools/llvm-readobj/Inputs/trivial.obj.coff-x86-64
diff --git a/test/tools/llvm-readobj/Inputs/trivial.obj.elf-i386 b/test/tools/llvm-readobj/Inputs/trivial.obj.elf-i386
new file mode 100644
index 0000000000..f85e40d626
--- /dev/null
+++ b/test/tools/llvm-readobj/Inputs/trivial.obj.elf-i386
diff --git a/test/tools/llvm-readobj/Inputs/trivial.obj.elf-x86-64 b/test/tools/llvm-readobj/Inputs/trivial.obj.elf-x86-64
new file mode 100644
index 0000000000..95285c1f23
--- /dev/null
+++ b/test/tools/llvm-readobj/Inputs/trivial.obj.elf-x86-64
diff --git a/test/tools/llvm-readobj/Inputs/trivial.obj.macho-i386 b/test/tools/llvm-readobj/Inputs/trivial.obj.macho-i386
new file mode 100644
index 0000000000..5048171ccb
--- /dev/null
+++ b/test/tools/llvm-readobj/Inputs/trivial.obj.macho-i386
diff --git a/test/tools/llvm-readobj/Inputs/trivial.obj.macho-x86-64 b/test/tools/llvm-readobj/Inputs/trivial.obj.macho-x86-64
new file mode 100644
index 0000000000..bcdfc8aa69
--- /dev/null
+++ b/test/tools/llvm-readobj/Inputs/trivial.obj.macho-x86-64
diff --git a/test/tools/llvm-readobj/file-headers.test b/test/tools/llvm-readobj/file-headers.test
new file mode 100644
index 0000000000..226eb93423
--- /dev/null
+++ b/test/tools/llvm-readobj/file-headers.test
@@ -0,0 +1,100 @@
+RUN: llvm-readobj -h %p/Inputs/trivial.obj.coff-i386 \
+RUN:   | FileCheck %s -check-prefix COFF32
+RUN: llvm-readobj -h %p/Inputs/trivial.obj.coff-x86-64 \
+RUN:   | FileCheck %s -check-prefix COFF64
+RUN: llvm-readobj -h %p/Inputs/trivial.obj.elf-i386 \
+RUN:   | FileCheck %s -check-prefix ELF32
+RUN: llvm-readobj -h %p/Inputs/trivial.obj.elf-x86-64 \
+RUN:   | FileCheck %s -check-prefix ELF64
+
+COFF32:      File: {{(.*[/\\])?}}trivial.obj.coff-i386
+COFF32-NEXT: Format: COFF-i386
+COFF32-NEXT: Arch: i386
+COFF32-NEXT: AddressSize: 32bit
+COFF32-NEXT: ImageFileHeader {
+COFF32-NEXT:   Machine: IMAGE_FILE_MACHINE_I386 (0x14C)
+COFF32-NEXT:   SectionCount: 2
+COFF32-NEXT:   TimeDateStamp: 2013-03-20 17:56:46 (0x5149F85E)
+COFF32-NEXT:   PointerToSymbolTable: 0xA5
+COFF32-NEXT:   SymbolCount: 7
+COFF32-NEXT:   OptionalHeaderSize: 0
+COFF32-NEXT:   Characteristics [ (0x0)
+COFF32-NEXT:   ]
+COFF32-NEXT: }
+
+COFF64:      File: {{(.*[/\\])?}}trivial.obj.coff-x86-64
+COFF64-NEXT: Format: COFF-x86-64
+COFF64-NEXT: Arch: x86_64
+COFF64-NEXT: AddressSize: 64bit
+COFF64-NEXT: ImageFileHeader {
+COFF64-NEXT:   Machine: IMAGE_FILE_MACHINE_AMD64 (0x8664)
+COFF64-NEXT:   SectionCount: 2
+COFF64-NEXT:   TimeDateStamp: 2013-03-20 17:56:46 (0x5149F85E)
+COFF64-NEXT:   PointerToSymbolTable: 0xAB
+COFF64-NEXT:   SymbolCount: 7
+COFF64-NEXT:   OptionalHeaderSize: 0
+COFF64-NEXT:   Characteristics [ (0x0)
+COFF64-NEXT:   ]
+COFF64-NEXT: }
+
+ELF32:      File: {{(.*[/\\])?}}trivial.obj.elf-i386
+ELF32-NEXT: Format: ELF32-i386
+ELF32-NEXT: Arch: i386
+ELF32-NEXT: AddressSize: 32bit
+ELF32-NEXT: LoadName:
+ELF32-NEXT: ElfHeader {
+ELF32-NEXT:   Ident {
+ELF32-NEXT:     Magic: (7F 45 4C 46)
+ELF32-NEXT:     Class: 32-bit (0x1)
+ELF32-NEXT:     DataEncoding: LittleEndian (0x1)
+ELF32-NEXT:     FileVersion: 1
+ELF32-NEXT:     OS/ABI: GNU/Linux (0x3)
+ELF32-NEXT:     ABIVersion: 0
+ELF32-NEXT:     Unused: (00 00 00 00 00 00 00)
+ELF32-NEXT:   }
+ELF32-NEXT:   Type: Relocatable (0x1)
+ELF32-NEXT:   Machine: EM_386 (0x3)
+ELF32-NEXT:   Version: 1
+ELF32-NEXT:   Entry: 0x0
+ELF32-NEXT:   ProgramHeaderOffset: 0x0
+ELF32-NEXT:   SectionHeaderOffset: 0xC8
+ELF32-NEXT:   Flags [ (0x0)
+ELF32-NEXT:   ]
+ELF32-NEXT:   HeaderSize: 52
+ELF32-NEXT:   ProgramHeaderEntrySize: 0
+ELF32-NEXT:   ProgramHeaderCount: 0
+ELF32-NEXT:   SectionHeaderEntrySize: 40
+ELF32-NEXT:   SectionHeaderCount: 10
+ELF32-NEXT:   StringTableSectionIndex: 7
+ELF32-NEXT: }
+
+ELF64:      File: {{(.*[/\\])?}}trivial.obj.elf-x86-64
+ELF64-NEXT: Format: ELF64-x86-64
+ELF64-NEXT: Arch: x86_64
+ELF64-NEXT: AddressSize: 64bit
+ELF64-NEXT: LoadName:
+ELF64-NEXT: ElfHeader {
+ELF64-NEXT:   Ident {
+ELF64-NEXT:     Magic: (7F 45 4C 46)
+ELF64-NEXT:     Class: 64-bit (0x2)
+ELF64-NEXT:     DataEncoding: LittleEndian (0x1)
+ELF64-NEXT:     FileVersion: 1
+ELF64-NEXT:     OS/ABI: GNU/Linux (0x3)
+ELF64-NEXT:     ABIVersion: 0
+ELF64-NEXT:     Unused: (00 00 00 00 00 00 00)
+ELF64-NEXT:   }
+ELF64-NEXT:   Type: Relocatable (0x1)
+ELF64-NEXT:   Machine: EM_X86_64 (0x3E)
+ELF64-NEXT:   Version: 1
+ELF64-NEXT:   Entry: 0x0
+ELF64-NEXT:   ProgramHeaderOffset: 0x0
+ELF64-NEXT:   SectionHeaderOffset: 0xB8
+ELF64-NEXT:   Flags [ (0x0)
+ELF64-NEXT:   ]
+ELF64-NEXT:   HeaderSize: 64
+ELF64-NEXT:   ProgramHeaderEntrySize: 0
+ELF64-NEXT:   ProgramHeaderCount: 0
+ELF64-NEXT:   SectionHeaderEntrySize: 64
+ELF64-NEXT:   SectionHeaderCount: 10
+ELF64-NEXT:   StringTableSectionIndex: 7
+ELF64-NEXT: }
diff --git a/test/tools/llvm-readobj/lit.local.cfg b/test/tools/llvm-readobj/lit.local.cfg
new file mode 100644
index 0000000000..df9b335dd1
--- /dev/null
+++ b/test/tools/llvm-readobj/lit.local.cfg
@@ -0,0 +1 @@
+config.suffixes = ['.test']
diff --git a/test/tools/llvm-readobj/relocations.test b/test/tools/llvm-readobj/relocations.test
new file mode 100644
index 0000000000..0608565373
--- /dev/null
+++ b/test/tools/llvm-readobj/relocations.test
@@ -0,0 +1,32 @@
+RUN: llvm-readobj -r %p/Inputs/trivial.obj.coff-i386 \
+RUN:   | FileCheck %s -check-prefix COFF
+RUN: llvm-readobj -r %p/Inputs/trivial.obj.elf-i386 \
+RUN:   | FileCheck %s -check-prefix ELF
+RUN: llvm-readobj -r %p/Inputs/trivial.obj.macho-i386 \
+RUN:   | FileCheck %s -check-prefix MACHO
+
+COFF:      Relocations [
+COFF-NEXT:   Section (1) .text {
+COFF-NEXT:     0x4 IMAGE_REL_I386_DIR32 .data
+COFF-NEXT:     0x9 IMAGE_REL_I386_REL32 _puts
+COFF-NEXT:     0xE IMAGE_REL_I386_REL32 _SomeOtherFunction
+COFF-NEXT:   }
+COFF-NEXT: ]
+
+ELF:      Relocations [
+ELF-NEXT:   Section (1) .text {
+ELF-NEXT:     0xC R_386_GOTPC _GLOBAL_OFFSET_TABLE_ 0x0
+ELF-NEXT:     0x12 R_386_GOTOFF .L.str 0x0
+ELF-NEXT:     0x1A R_386_PLT32 puts 0x0
+ELF-NEXT:     0x1F R_386_PLT32 SomeOtherFunction 0x0
+ELF-NEXT:   }
+ELF-NEXT: ]
+
+MACHO:      Relocations [
+MACHO-NEXT:   Section __text {
+MACHO-NEXT:     0x18 GENERIC_RELOC_VANILLA _SomeOtherFunction 0x0
+MACHO-NEXT:     0x13 GENERIC_RELOC_VANILLA _puts 0x0
+MACHO-NEXT:     0xB GENERIC_RELOC_LOCAL_SECTDIFF _main 0x{{[0-9A-F]+}}
+MACHO-NEXT:     0x0 GENERIC_RELOC_PAIR _main 0x{{[0-9A-F]+}}
+MACHO-NEXT:   }
+MACHO-NEXT: ]
diff --git a/test/tools/llvm-readobj/sections-ext.test b/test/tools/llvm-readobj/sections-ext.test
new file mode 100644
index 0000000000..a972c9ab51
--- /dev/null
+++ b/test/tools/llvm-readobj/sections-ext.test
@@ -0,0 +1,175 @@
+RUN: llvm-readobj -s -st -sr -sd %p/Inputs/trivial.obj.coff-i386 \
+RUN:   | FileCheck %s -check-prefix COFF
+RUN: llvm-readobj -s -st -sr -sd %p/Inputs/trivial.obj.elf-i386 \
+RUN:   | FileCheck %s -check-prefix ELF
+RUN: llvm-readobj -s -st -sr -sd %p/Inputs/trivial.obj.macho-i386 \
+RUN:   | FileCheck %s -check-prefix MACHO
+
+COFF:      Sections [
+COFF-NEXT:   Section {
+COFF-NEXT:     Number: 1
+COFF-NEXT:     Name: .text (2E 74 65 78 74 00 00 00)
+COFF-NEXT:     VirtualSize: 0x0
+COFF-NEXT:     VirtualAddress: 0x0
+COFF-NEXT:     RawDataSize: 22
+COFF-NEXT:     PointerToRawData: 0x64
+COFF-NEXT:     PointerToRelocations: 0x7A
+COFF-NEXT:     PointerToLineNumbers: 0x0
+COFF-NEXT:     RelocationCount: 3
+COFF-NEXT:     LineNumberCount: 0
+COFF-NEXT:     Characteristics [ (0x60500020)
+COFF-NEXT:       IMAGE_SCN_ALIGN_16BYTES (0x500000)
+COFF-NEXT:       IMAGE_SCN_CNT_CODE (0x20)
+COFF-NEXT:       IMAGE_SCN_MEM_EXECUTE (0x20000000)
+COFF-NEXT:       IMAGE_SCN_MEM_READ (0x40000000)
+COFF-NEXT:     ]
+COFF-NEXT:     Relocations [
+COFF-NEXT:       0x4 IMAGE_REL_I386_DIR32 .data
+COFF-NEXT:       0x9 IMAGE_REL_I386_REL32 _puts
+COFF-NEXT:       0xE IMAGE_REL_I386_REL32 _SomeOtherFunction
+COFF-NEXT:     ]
+COFF-NEXT:     Symbols [
+COFF-NEXT:       Symbol {
+COFF-NEXT:         Name: .text
+COFF-NEXT:         Value: 0
+COFF-NEXT:         Section: .text (1)
+COFF-NEXT:         BaseType: Null (0x0)
+COFF-NEXT:         ComplexType: Null (0x0)
+COFF-NEXT:         StorageClass: Static (0x3)
+COFF-NEXT:         AuxSymbolCount: 1
+COFF-NEXT:         AuxSectionDef {
+COFF-NEXT:           Length: 22
+COFF-NEXT:           RelocationCount: 3
+COFF-NEXT:           LineNumberCount: 0
+COFF-NEXT:           Checksum: 0x0
+COFF-NEXT:           Number: 1
+COFF-NEXT:           Selection: 0x0
+COFF-NEXT:           Unused: (00 00 00)
+COFF-NEXT:         }
+COFF-NEXT:       }
+COFF-NEXT:       Symbol {
+COFF-NEXT:         Name: _main
+COFF-NEXT:         Value: 0
+COFF-NEXT:         Section: .text (1)
+COFF-NEXT:         BaseType: Null (0x0)
+COFF-NEXT:         ComplexType: Function (0x2)
+COFF-NEXT:         StorageClass: External (0x2)
+COFF-NEXT:         AuxSymbolCount: 0
+COFF-NEXT:       }
+COFF-NEXT:     ]
+COFF-NEXT:     SectionData (
+COFF-NEXT:       0000: 50C70424 00000000 E8000000 00E80000  |P..$............|
+COFF-NEXT:       0010: 000031C0 5AC3                        |..1.Z.|
+COFF-NEXT:     )
+COFF-NEXT:   }
+
+ELF:      Sections [
+ELF-NEXT:   Section {
+ELF-NEXT:     Index: 0
+ELF-NEXT:     Name:  (0)
+ELF-NEXT:     Type: SHT_NULL (0x0)
+ELF-NEXT:     Flags [ (0x0)
+ELF-NEXT:     ]
+ELF-NEXT:     Address: 0x0
+ELF-NEXT:     Offset: 0x0
+ELF-NEXT:     Size: 0
+ELF-NEXT:     Link: 0
+ELF-NEXT:     Info: 0
+ELF-NEXT:     AddressAlignment: 0
+ELF-NEXT:     EntrySize: 0
+ELF-NEXT:     Relocations [
+ELF-NEXT:     ]
+ELF-NEXT:     Symbols [
+ELF-NEXT:     ]
+ELF-NEXT:     SectionData (
+ELF-NEXT:     )
+ELF-NEXT:   }
+ELF-NEXT:   Section {
+ELF-NEXT:     Index: 1
+ELF-NEXT:     Name: .text (5)
+ELF-NEXT:     Type: SHT_PROGBITS (0x1)
+ELF-NEXT:     Flags [ (0x6)
+ELF-NEXT:       SHF_ALLOC (0x2)
+ELF-NEXT:       SHF_EXECINSTR (0x4)
+ELF-NEXT:     ]
+ELF-NEXT:     Address: 0x0
+ELF-NEXT:     Offset: 0x40
+ELF-NEXT:     Size: 42
+ELF-NEXT:     Link: 0
+ELF-NEXT:     Info: 0
+ELF-NEXT:     AddressAlignment: 16
+ELF-NEXT:     EntrySize: 0
+ELF-NEXT:     Relocations [
+ELF-NEXT:       0xC R_386_GOTPC _GLOBAL_OFFSET_TABLE_ 0x0
+ELF-NEXT:       0x12 R_386_GOTOFF .L.str 0x0
+ELF-NEXT:       0x1A R_386_PLT32 puts 0x0
+ELF-NEXT:       0x1F R_386_PLT32 SomeOtherFunction 0x0
+ELF-NEXT:     ]
+ELF-NEXT:     Symbols [
+ELF-NEXT:       Symbol {
+ELF-NEXT:         Name: .text (0)
+ELF-NEXT:         Value: 0x0
+ELF-NEXT:         Size: 0
+ELF-NEXT:         Binding: Local (0x0)
+ELF-NEXT:         Type: Section (0x3)
+ELF-NEXT:         Other: 0
+ELF-NEXT:         Section: .text (0x1)
+ELF-NEXT:       }
+ELF-NEXT:       Symbol {
+ELF-NEXT:         Name: main (12)
+ELF-NEXT:         Value: 0x0
+ELF-NEXT:         Size: 42
+ELF-NEXT:         Binding: Global (0x1)
+ELF-NEXT:         Type: Function (0x2)
+ELF-NEXT:         Other: 0
+ELF-NEXT:         Section: .text (0x1)
+ELF-NEXT:       }
+ELF-NEXT:     ]
+ELF-NEXT:     SectionData (
+ELF-NEXT:       0000: 5383EC08 E8000000 005B81C3 03000000  |S........[......|
+ELF-NEXT:       0010: 8D830000 00008904 24E8FCFF FFFFE8FC  |........$.......|
+ELF-NEXT:       0020: FFFFFF31 C083C408 5BC3               |...1....[.|
+ELF-NEXT:     )
+ELF-NEXT:   }
+
+MACHO:      Sections [
+MACHO-NEXT:   Section {
+MACHO-NEXT:     Index: 0
+MACHO-NEXT:     Name: __text (5F 5F 74 65 78 74 00 00 00 00 00 00 00 00 00 00)
+MACHO-NEXT:     Segment: __TEXT (5F 5F 54 45 58 54 00 00 00 00 00 00 00 00 00 00)
+MACHO-NEXT:     Address: 0x0
+MACHO-NEXT:     Size: 0x22
+MACHO-NEXT:     Offset: 324
+MACHO-NEXT:     Alignment: 4
+MACHO-NEXT:     RelocationOffset: 0x174
+MACHO-NEXT:     RelocationCount: 4
+MACHO-NEXT:     Type: 0x0
+MACHO-NEXT:     Attributes [ (0x800004)
+MACHO-NEXT:       PureInstructions (0x800000)
+MACHO-NEXT:       SomeInstructions (0x4)
+MACHO-NEXT:     ]
+MACHO-NEXT:     Reserved1: 0x0
+MACHO-NEXT:     Reserved2: 0x0
+MACHO-NEXT:     Relocations [
+MACHO-NEXT:       0x18 GENERIC_RELOC_VANILLA _SomeOtherFunction 0x0
+MACHO-NEXT:       0x13 GENERIC_RELOC_VANILLA _puts 0x0
+MACHO-NEXT:       0xB GENERIC_RELOC_LOCAL_SECTDIFF _main 0x{{[0-9A-F]+}}
+MACHO-NEXT:       0x0 GENERIC_RELOC_PAIR _main 0x{{[0-9A-F]+}}
+MACHO-NEXT:     ]
+MACHO-NEXT:     Symbols [
+MACHO-NEXT:       Symbol {
+MACHO-NEXT:         Name: _main (1)
+MACHO-NEXT:         Type: 0xF
+MACHO-NEXT:         Section: __text (0x1)
+MACHO-NEXT:         RefType: UndefinedNonLazy (0x0)
+MACHO-NEXT:         Flags [ (0x0)
+MACHO-NEXT:         ]
+MACHO-NEXT:         Value: 0x0
+MACHO-NEXT:       }
+MACHO-NEXT:     ]
+MACHO-NEXT:     SectionData (
+MACHO-NEXT:       0000: 83EC0CE8 00000000 588D801A 00000089  |........X.......|
+MACHO-NEXT:       0010: 0424E8E9 FFFFFFE8 E4FFFFFF 31C083C4  |.$..........1...|
+MACHO-NEXT:       0020: 0CC3                                 |..|
+MACHO-NEXT:     )
+MACHO-NEXT:   }
diff --git a/test/tools/llvm-readobj/sections.test b/test/tools/llvm-readobj/sections.test
new file mode 100644
index 0000000000..84154d759c
--- /dev/null
+++ b/test/tools/llvm-readobj/sections.test
@@ -0,0 +1,113 @@
+RUN: llvm-readobj -s %p/Inputs/trivial.obj.coff-i386 \
+RUN:   | FileCheck %s -check-prefix COFF
+RUN: llvm-readobj -s %p/Inputs/trivial.obj.elf-i386 \
+RUN:   | FileCheck %s -check-prefix ELF
+RUN: llvm-readobj -s %p/Inputs/trivial.obj.macho-i386 \
+RUN:   | FileCheck %s -check-prefix MACHO
+
+COFF:      Sections [
+COFF-NEXT:   Section {
+COFF-NEXT:     Number: 1
+COFF-NEXT:     Name: .text (2E 74 65 78 74 00 00 00)
+COFF-NEXT:     VirtualSize: 0x0
+COFF-NEXT:     VirtualAddress: 0x0
+COFF-NEXT:     RawDataSize: 22
+COFF-NEXT:     PointerToRawData: 0x64
+COFF-NEXT:     PointerToRelocations: 0x7A
+COFF-NEXT:     PointerToLineNumbers: 0x0
+COFF-NEXT:     RelocationCount: 3
+COFF-NEXT:     LineNumberCount: 0
+COFF-NEXT:     Characteristics [ (0x60500020)
+COFF-NEXT:       IMAGE_SCN_ALIGN_16BYTES (0x500000)
+COFF-NEXT:       IMAGE_SCN_CNT_CODE (0x20)
+COFF-NEXT:       IMAGE_SCN_MEM_EXECUTE (0x20000000)
+COFF-NEXT:       IMAGE_SCN_MEM_READ (0x40000000)
+COFF-NEXT:     ]
+COFF-NEXT:   }
+COFF-NEXT:   Section {
+COFF-NEXT:     Number: 2
+COFF-NEXT:     Name: .data (2E 64 61 74 61 00 00 00)
+COFF-NEXT:     VirtualSize: 0x0
+COFF-NEXT:     VirtualAddress: 0x0
+COFF-NEXT:     RawDataSize: 13
+COFF-NEXT:     PointerToRawData: 0x98
+COFF-NEXT:     PointerToRelocations: 0x0
+COFF-NEXT:     PointerToLineNumbers: 0x0
+COFF-NEXT:     RelocationCount: 0
+COFF-NEXT:     LineNumberCount: 0
+COFF-NEXT:     Characteristics [ (0xC0300040)
+COFF-NEXT:       IMAGE_SCN_ALIGN_4BYTES (0x300000)
+COFF-NEXT:       IMAGE_SCN_CNT_INITIALIZED_DATA (0x40)
+COFF-NEXT:       IMAGE_SCN_MEM_READ (0x40000000)
+COFF-NEXT:       IMAGE_SCN_MEM_WRITE (0x80000000)
+COFF-NEXT:     ]
+COFF-NEXT:   }
+COFF-NEXT: ]
+
+ELF:      Sections [
+ELF-NEXT:   Section {
+ELF-NEXT:     Index: 0
+ELF-NEXT:     Name:  (0)
+ELF-NEXT:     Type: SHT_NULL (0x0)
+ELF-NEXT:     Flags [ (0x0)
+ELF-NEXT:     ]
+ELF-NEXT:     Address: 0x0
+ELF-NEXT:     Offset: 0x0
+ELF-NEXT:     Size: 0
+ELF-NEXT:     Link: 0
+ELF-NEXT:     Info: 0
+ELF-NEXT:     AddressAlignment: 0
+ELF-NEXT:     EntrySize: 0
+ELF-NEXT:   }
+ELF-NEXT:   Section {
+ELF-NEXT:     Index: 1
+ELF-NEXT:     Name: .text (5)
+ELF-NEXT:     Type: SHT_PROGBITS (0x1)
+ELF-NEXT:     Flags [ (0x6)
+ELF-NEXT:       SHF_ALLOC (0x2)
+ELF-NEXT:       SHF_EXECINSTR (0x4)
+ELF-NEXT:     ]
+ELF-NEXT:     Address: 0x0
+ELF-NEXT:     Offset: 0x40
+ELF-NEXT:     Size: 42
+ELF-NEXT:     Link: 0
+ELF-NEXT:     Info: 0
+ELF-NEXT:     AddressAlignment: 16
+ELF-NEXT:     EntrySize: 0
+ELF-NEXT:   }
+
+MACHO:      Sections [
+MACHO-NEXT:   Section {
+MACHO-NEXT:     Index: 0
+MACHO-NEXT:     Name: __text (5F 5F 74 65 78 74 00 00 00 00 00 00 00 00 00 00)
+MACHO-NEXT:     Segment: __TEXT (5F 5F 54 45 58 54 00 00 00 00 00 00 00 00 00 00)
+MACHO-NEXT:     Address: 0x0
+MACHO-NEXT:     Size: 0x22
+MACHO-NEXT:     Offset: 324
+MACHO-NEXT:     Alignment: 4
+MACHO-NEXT:     RelocationOffset: 0x174
+MACHO-NEXT:     RelocationCount: 4
+MACHO-NEXT:     Type: 0x0
+MACHO-NEXT:     Attributes [ (0x800004)
+MACHO-NEXT:       PureInstructions (0x800000)
+MACHO-NEXT:       SomeInstructions (0x4)
+MACHO-NEXT:     ]
+MACHO-NEXT:     Reserved1: 0x0
+MACHO-NEXT:     Reserved2: 0x0
+MACHO-NEXT:   }
+MACHO-NEXT:   Section {
+MACHO-NEXT:     Index: 1
+MACHO-NEXT:     Name: __cstring (5F 5F 63 73 74 72 69 6E 67 00 00 00 00 00 00 00)
+MACHO-NEXT:     Segment: __TEXT (5F 5F 54 45 58 54 00 00 00 00 00 00 00 00 00 00)
+MACHO-NEXT:     Address: 0x22
+MACHO-NEXT:     Size: 0xD
+MACHO-NEXT:     Offset: 358
+MACHO-NEXT:     Alignment: 0
+MACHO-NEXT:     RelocationOffset: 0x0
+MACHO-NEXT:     RelocationCount: 0
+MACHO-NEXT:     Type: ExtReloc (0x2)
+MACHO-NEXT:     Attributes [ (0x0)
+MACHO-NEXT:     ]
+MACHO-NEXT:     Reserved1: 0x0
+MACHO-NEXT:     Reserved2: 0x0
+MACHO-NEXT:   }
diff --git a/test/tools/llvm-readobj/symbols.test b/test/tools/llvm-readobj/symbols.test
new file mode 100644
index 0000000000..d33bd8ed2c
--- /dev/null
+++ b/test/tools/llvm-readobj/symbols.test
@@ -0,0 +1,44 @@
+RUN: llvm-readobj -t %p/Inputs/trivial.obj.coff-i386 \
+RUN:   | FileCheck %s -check-prefix COFF
+RUN: llvm-readobj -t %p/Inputs/trivial.obj.elf-i386 \
+RUN:   | FileCheck %s -check-prefix ELF
+
+COFF:      Symbols [
+COFF-NEXT:   Symbol {
+COFF-NEXT:     Name: .text
+COFF-NEXT:     Value: 0
+COFF-NEXT:     Section: .text (1)
+COFF-NEXT:     BaseType: Null (0x0)
+COFF-NEXT:     ComplexType: Null (0x0)
+COFF-NEXT:     StorageClass: Static (0x3)
+COFF-NEXT:     AuxSymbolCount: 1
+COFF-NEXT:     AuxSectionDef {
+COFF-NEXT:       Length: 22
+COFF-NEXT:       RelocationCount: 3
+COFF-NEXT:       LineNumberCount: 0
+COFF-NEXT:       Checksum: 0x0
+COFF-NEXT:       Number: 1
+COFF-NEXT:       Selection: 0x0
+COFF-NEXT:       Unused: (00 00 00)
+COFF-NEXT:     }
+COFF-NEXT:   }
+
+ELF:      Symbols [
+ELF-NEXT:   Symbol {
+ELF-NEXT:     Name: trivial.ll (1)
+ELF-NEXT:     Value: 0x0
+ELF-NEXT:     Size: 0
+ELF-NEXT:     Binding: Local (0x0)
+ELF-NEXT:     Type: File (0x4)
+ELF-NEXT:     Other: 0
+ELF-NEXT:     Section:  (0xFFF1)
+ELF-NEXT:   }
+ELF-NEXT:   Symbol {
+ELF-NEXT:     Name: .L.str (39)
+ELF-NEXT:     Value: 0x0
+ELF-NEXT:     Size: 13
+ELF-NEXT:     Binding: Local (0x0)
+ELF-NEXT:     Type: Object (0x1)
+ELF-NEXT:     Other: 0
+ELF-NEXT:     Section: .rodata.str1.1 (0x5)
+ELF-NEXT:   }