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!
llvm-svn: 178679
diff --git a/llvm/test/Object/readobj-shared-object.test b/llvm/test/Object/readobj-shared-object.test
index 548bd38..72dbd32 100644
--- a/llvm/test/Object/readobj-shared-object.test
+++ b/llvm/test/Object/readobj-shared-object.test
@@ -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: 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: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: 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:Libraries needed:
-ELF: libc.so.6
-ELF: libm.so.6
-ELF: Total: 2
-
-
+ELF: NeededLibraries [
+ELF-NEXT: libc.so.6
+ELF-NEXT: libm.so.6
+ELF-NEXT: ]