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
This commit is contained in:
Eric Christopher
2013-04-03 18:31:38 +00:00
parent 99ff2ba240
commit 76e70f340c
34 changed files with 3940 additions and 533 deletions
+40 -9
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@@ -1,15 +1,46 @@
RUN: llvm-readobj %p/Inputs/elf-versioning-test.i386 \
RUN: llvm-readobj -dt %p/Inputs/elf-versioning-test.i386 \
RUN: | FileCheck %s -check-prefix ELF
RUN: llvm-readobj %p/Inputs/elf-versioning-test.i386 \
RUN: llvm-readobj -dt %p/Inputs/elf-versioning-test.i386 \
RUN: | FileCheck %s -check-prefix ELF32
RUN: llvm-readobj %p/Inputs/elf-versioning-test.x86_64 \
RUN: llvm-readobj -dt %p/Inputs/elf-versioning-test.x86_64 \
RUN: | FileCheck %s -check-prefix ELF
RUN: llvm-readobj %p/Inputs/elf-versioning-test.x86_64 \
RUN: llvm-readobj -dt %p/Inputs/elf-versioning-test.x86_64 \
RUN: | FileCheck %s -check-prefix ELF64
ELF: foo@@VER2 FUNC .text {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
ELF: foo@VER1 FUNC .text {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
ELF: unversioned_define FUNC .text {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
ELF: DynamicSymbols [
ELF: Symbol {
ELF: Name: foo@@VER2
ELF: Binding: Global
ELF: Type: Function
ELF: Section: .text
ELF: }
ELF: Symbol {
ELF: Name: foo@VER1
ELF: Binding: Global
ELF: Type: Function
ELF: Section: .text
ELF: }
ELF: Symbol {
ELF: Name: unversioned_define
ELF: Binding: Global
ELF: Type: Function
ELF: Section: .text
ELF: }
ELF: ]
ELF32: puts@GLIBC_2.0 FUNC {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} undef,global
ELF64: puts@GLIBC_2.2.5 FUNC {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} undef,global
ELF32: DynamicSymbols [
ELF32: Symbol {
ELF32: Name: puts@GLIBC_2.0
ELF32: Binding: Global
ELF32: Type: Function
ELF32: Section: (0x0)
ELF32: }
ELF32: ]
ELF64: DynamicSymbols [
ELF64: Symbol {
ELF64: Name: puts@GLIBC_2.2.5
ELF64: Binding: Global
ELF64: Type: Function
ELF64: Section: (0x0)
ELF64: }
ELF64: ]
+307 -80
View File
@@ -1,92 +1,319 @@
RUN: llvm-readobj %p/Inputs/shared-object-test.elf-i386 \
RUN: llvm-readobj -s -t -dt -dynamic-table -needed-libs \
RUN: %p/Inputs/shared-object-test.elf-i386 \
RUN: | FileCheck %s -check-prefix ELF
RUN: llvm-readobj %p/Inputs/shared-object-test.elf-i386 \
RUN: llvm-readobj -s -t -dt -dynamic-table -needed-libs \
RUN: %p/Inputs/shared-object-test.elf-i386 \
RUN: | FileCheck %s -check-prefix ELF32
RUN: llvm-readobj %p/Inputs/shared-object-test.elf-x86-64 \
RUN: llvm-readobj -s -t -dt -dynamic-table -needed-libs \
RUN: %p/Inputs/shared-object-test.elf-x86-64 \
RUN: | FileCheck %s -check-prefix ELF
RUN: llvm-readobj %p/Inputs/shared-object-test.elf-x86-64 \
RUN: llvm-readobj -s -t -dt -dynamic-table -needed-libs \
RUN: %p/Inputs/shared-object-test.elf-x86-64 \
RUN: | FileCheck %s -check-prefix ELF64
ELF64:File Format : ELF64-x86-64
ELF64:Arch : x86_64
ELF64:Address Size: 64 bits
ELF64:Load Name : libfoo.so
ELF64: Format: ELF64-x86-64
ELF64: Arch: x86_64
ELF64: AddressSize: 64bit
ELF64: LoadName: libfoo.so
ELF32:File Format : ELF32-i386
ELF32:Arch : i386
ELF32:Address Size: 32 bits
ELF32:Load Name : libfoo.so
ELF32: Format: ELF32-i386
ELF32: Arch: i386
ELF32: AddressSize: 32bit
ELF32: LoadName: libfoo.so
ELF:Symbols:
ELF: Name Type Section Address Size FileOffset Flags
ELF: .dynsym DBG .dynsym {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} formatspecific
ELF: .dynstr DBG .dynstr {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} formatspecific
ELF: .text DBG .text {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} formatspecific
ELF: .eh_frame DBG .eh_frame {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} formatspecific
ELF: .tdata DBG .tdata {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} formatspecific
ELF: .dynamic DBG .dynamic {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} formatspecific
ELF: .got.plt DBG .got.plt {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} formatspecific
ELF: .data DBG .data {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} formatspecific
ELF: .bss DBG .bss {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} formatspecific
ELF: shared.ll FILE {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} absolute,formatspecific
ELF: local_func FUNC .text {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}}
ELF: _GLOBAL_OFFSET_TABLE_ DATA {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} absolute
ELF: _DYNAMIC DATA {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} absolute
ELF: common_sym DATA .bss {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
ELF: tls_sym DATA .tdata {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global,threadlocal
ELF: defined_sym DATA .data {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
ELF: __bss_start ? {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global,absolute
ELF: _end ? {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global,absolute
ELF: global_func FUNC .text {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
ELF: _edata ? {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global,absolute
ELF: Total: 21
ELF: Sections [
ELF: Section {
ELF: Name: (0)
ELF: Type: SHT_NULL
ELF: Flags [ (0x0)
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .hash
ELF: Type: SHT_HASH
ELF: Flags [ (0x2)
ELF: SHF_ALLOC
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .dynsym
ELF: Type: SHT_DYNSYM
ELF: Flags [ (0x2)
ELF: SHF_ALLOC
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .dynstr
ELF: Type: SHT_STRTAB
ELF: Flags [ (0x2)
ELF: SHF_ALLOC
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .text
ELF: Type: SHT_PROGBITS
ELF: Flags [ (0x6)
ELF: SHF_ALLOC
ELF: SHF_EXECINSTR
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .eh_frame
ELF: Type: SHT_PROGBITS
ELF: Flags [ (0x2)
ELF: SHF_ALLOC
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .tdata
ELF: Type: SHT_PROGBITS
ELF: Flags [ (0x403)
ELF: SHF_ALLOC
ELF: SHF_TLS
ELF: SHF_WRITE
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .dynamic
ELF: Type: SHT_DYNAMIC
ELF: Flags [ (0x3)
ELF: SHF_ALLOC
ELF: SHF_WRITE
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .got.plt
ELF: Type: SHT_PROGBITS
ELF: Flags [ (0x3)
ELF: SHF_ALLOC
ELF: SHF_WRITE
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .data
ELF: Type: SHT_PROGBITS
ELF: Flags [ (0x3)
ELF: SHF_ALLOC
ELF: SHF_WRITE
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .bss
ELF: Type: SHT_NOBITS
ELF: Flags [ (0x3)
ELF: SHF_ALLOC
ELF: SHF_WRITE
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .shstrtab
ELF: Type: SHT_STRTAB
ELF: Flags [ (0x0)
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .symtab
ELF: Type: SHT_SYMTAB
ELF: Flags [ (0x0)
ELF: ]
ELF: }
ELF: Section {
ELF: Name: .strtab
ELF: Type: SHT_STRTAB
ELF: Flags [ (0x0)
ELF: ]
ELF: }
ELF: ]
ELF:Dynamic Symbols:
ELF: Name Type Section Address Size FileOffset Flags
ELF: common_sym DATA .bss {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
ELF: tls_sym DATA .tdata {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global,threadlocal
ELF: defined_sym DATA .data {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
ELF: __bss_start ? {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global,absolute
ELF: _end ? {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global,absolute
ELF: global_func FUNC .text {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
ELF: _edata ? {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global,absolute
ELF: Total: {{[0-9a-f]+}}
ELF: Symbols [
ELF: Symbol {
ELF: Name: .hash
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .hash
ELF: }
ELF: Symbol {
ELF: Name: .dynsym
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .dynsym
ELF: }
ELF: Symbol {
ELF: Name: .dynstr
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .dynstr
ELF: }
ELF: Symbol {
ELF: Name: .text
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .text
ELF: }
ELF: Symbol {
ELF: Name: .eh_frame
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .eh_frame
ELF: }
ELF: Symbol {
ELF: Name: .tdata
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .tdata
ELF: }
ELF: Symbol {
ELF: Name: .dynamic
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .dynamic
ELF: }
ELF: Symbol {
ELF: Name: .got.plt
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .got.plt
ELF: }
ELF: Symbol {
ELF: Name: .data
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .data
ELF: }
ELF: Symbol {
ELF: Name: .bss
ELF: Binding: Local
ELF: Type: Section
ELF: Section: .bss
ELF: }
ELF: Symbol {
ELF: Name: shared.ll
ELF: Binding: Local
ELF: Type: File
ELF: Section: (0xFFF1)
ELF: }
ELF: Symbol {
ELF: Name: local_func
ELF: Binding: Local
ELF: Type: Function
ELF: Section: .text
ELF: }
ELF: Symbol {
ELF: Name: _GLOBAL_OFFSET_TABLE_
ELF: Binding: Local
ELF: Type: Object
ELF: Section: (0xFFF1)
ELF: }
ELF: Symbol {
ELF: Name: _DYNAMIC
ELF: Binding: Local
ELF: Type: Object
ELF: Section: (0xFFF1)
ELF: }
ELF: Symbol {
ELF: Name: common_sym
ELF: Binding: Global
ELF: Type: Object
ELF: Section: .bss
ELF: }
ELF: Symbol {
ELF: Name: tls_sym
ELF: Binding: Global
ELF: Type: TLS
ELF: Section: .tdata
ELF: }
ELF: Symbol {
ELF: Name: defined_sym
ELF: Binding: Global
ELF: Type: Object
ELF: Section: .data
ELF: }
ELF: Symbol {
ELF: Name: __bss_start
ELF: Binding: Global
ELF: Type: None
ELF: Section: (0xFFF1)
ELF: }
ELF: Symbol {
ELF: Name: _end
ELF: Binding: Global
ELF: Type: None
ELF: Section: (0xFFF1)
ELF: }
ELF: Symbol {
ELF: Name: global_func
ELF: Binding: Global
ELF: Type: Function
ELF: Section: .text
ELF: }
ELF: Symbol {
ELF: Name: _edata
ELF: Binding: Global
ELF: Type: None
ELF: Section: (0xFFF1)
ELF: }
ELF: ]
ELF:Sections:
ELF: Name Address Size Align Flags
ELF: {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} rodata
ELF: .hash {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} required,rodata
ELF: .dynsym {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} required,rodata
ELF: .dynstr {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} required,rodata
ELF: .text {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} text,{{(data,)?}}required
ELF: .eh_frame {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} data,required,rodata
ELF: .tdata {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} data,required
ELF: .dynamic {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} required
ELF: .got.plt {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} data,required
ELF: .data {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} data,required
ELF: .bss {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} bss,required,virtual,zeroinit
ELF: .shstrtab {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} rodata
ELF: .symtab {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} rodata
ELF: .strtab {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} rodata
ELF: Total: 14
ELF:Dynamic section contains 9 entries
ELF: Tag Type Name/Value
ELF: 00000001 (NEEDED) Shared library: [libc.so.6]
ELF: 00000001 (NEEDED) Shared library: [libm.so.6]
ELF: 0000000e (SONAME) Library soname: [libfoo.so]
ELF: 00000004 (HASH) {{[0-9a-f]+}}
ELF: 00000005 (STRTAB) {{[0-9a-f]+}}
ELF: 00000006 (SYMTAB) {{[0-9a-f]+}}
ELF: 0000000a (STRSZ) {{[0-9]+}} (bytes)
ELF: 0000000b (SYMENT) {{[0-9]+}} (bytes)
ELF: 00000000 (NULL) 0x0
ELF: Total: 9
ELF:Libraries needed:
ELF: libc.so.6
ELF: libm.so.6
ELF: Total: 2
ELF: DynamicSymbols [
ELF: Symbol {
ELF: Name: common_sym
ELF: Binding: Global
ELF: Type: Object
ELF: Section: .bss
ELF: }
ELF: Symbol {
ELF: Name: tls_sym
ELF: Binding: Global
ELF: Type: TLS
ELF: Section: .tdata
ELF: }
ELF: Symbol {
ELF: Name: defined_sym
ELF: Binding: Global
ELF: Type: Object
ELF: Section: .data
ELF: }
ELF: Symbol {
ELF: Name: __bss_start
ELF: Binding: Global
ELF: Type: None
ELF: Section: (0xFFF1)
ELF: }
ELF: Symbol {
ELF: Name: _end
ELF: Binding: Global
ELF: Type: None
ELF: Section: (0xFFF1)
ELF: }
ELF: Symbol {
ELF: Name: global_func
ELF: Binding: Global
ELF: Type: Function
ELF: Section: .text
ELF: }
ELF: Symbol {
ELF: Name: _edata
ELF: Binding: Global
ELF: Type: None
ELF: Section: (0xFFF1)
ELF: }
ELF: ]
ELF: DynamicSection [ (9 entries)
ELF: Tag Type Name/Value
ELF: 00000001 NEEDED SharedLibrary (libc.so.6)
ELF: 00000001 NEEDED SharedLibrary (libm.so.6)
ELF: 0000000E SONAME LibrarySoname (libfoo.so)
ELF: 00000004 HASH {{[0-9a-f]+}}
ELF: 00000005 STRTAB {{[0-9a-f]+}}
ELF: 00000006 SYMTAB {{[0-9a-f]+}}
ELF: 0000000A STRSZ {{[0-9]+}} (bytes)
ELF: 0000000B SYMENT {{[0-9]+}} (bytes)
ELF: 00000000 NULL 0x0
ELF: ]
ELF: NeededLibraries [
ELF-NEXT: libc.so.6
ELF-NEXT: libm.so.6
ELF-NEXT: ]