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

1 files changed, 44 insertions, 0 deletions

diff --git a/test/tools/llvm-readobj/symbols.test b/test/tools/llvm-readobj/symbols.test
new file mode 100644
index 0000000..d33bd8e
--- /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:   }