NAME

       llvm-readobj - LLVM Object Reader

SYNOPSIS

       llvm-readobj [options] [input…]

DESCRIPTION

       The  llvm-readobj  tool  displays  low-level format-specific information about one or more
       object files.

       If input is “-”, llvm-readobj reads from standard input. Otherwise, it will read from  the
       specified filenames.

DIFFERENCES TO LLVM-READELF

       llvm-readelf  is an alias for the llvm-readobj tool with a slightly different command-line
       interface and output that is GNU compatible.  Following is a list of  differences  between
       llvm-readelf and llvm-readobj:

       • llvm-readelf  uses  GNU  for the --elf-output-style option by default. llvm-readobj uses
         LLVM.

       • llvm-readelf allows single-letter grouped flags (e.g.  llvm-readelf -SW is the  same  as
         llvm-readelf -S -W).  llvm-readobj does not allow grouping.

       • llvm-readelf  provides  -s  as  an  alias  for --symbols, for GNU readelf compatibility,
         whereas it is an alias for --section-headers in llvm-readobj.

       • llvm-readobj provides -t as an alias for --symbols.  llvm-readelf does not.

       • llvm-readobj provides --sr, --sd, --st and --dt as  aliases  for  --section-relocations,
         --section-data, --section-symbols and --dyn-symbols respectively.  llvm-readelf does not
         provide these aliases, to avoid conflicting with grouped flags.

GENERAL AND MULTI-FORMAT OPTIONS

       These options are applicable to more than one  file  format,  or  are  unrelated  to  file
       formats.

       --all  Equivalent to specifying all the main display options relevant to the file format.

       --addrsig
              Display the address-significance table.

       --expand-relocs
              When used with --relocs, display each relocation in an expanded multi-line format.

       --file-header, -h
              Display file headers.

       --headers, -e
              Equivalent to setting: --file-header, --program-headers, and --sections.

       --help Display a summary of command line options.

       --hex-dump=<section[,section,...]>, -x
              Display  the  specified  section(s)  as hexadecimal bytes. section may be a section
              index or section name.

       --needed-libs
              Display the needed libraries.

       --relocations, --relocs, -r
              Display the relocation entries in the file.

       --sections, --section-headers, -S
              Display all sections.

       --section-data, --sd
              When used with --sections, display section data for each section shown. This option
              has no effect for GNU style output.

       --section-relocations, --sr
              When  used with --sections, display relocations for each section shown. This option
              has no effect for GNU style output.

       --section-symbols, --st
              When used with --sections, display symbols for each section shown.  This option has
              no effect for GNU style output.

       --stackmap
              Display contents of the stackmap section.

       --string-dump=<section[,section,...]>, -p
              Display  the  specified  section(s)  as a list of strings. section may be a section
              index or section name.

       --string-table
              Display contents of the string table.

       --symbols, --syms, -s
              Display the symbol table.

       --unwind, -u
              Display unwind information.

       --version
              Display the version of the llvm-readobj executable.

       @<FILE>
              Read command-line options from response file <FILE>.

ELF SPECIFIC OPTIONS

       The following options are implemented only for the ELF file format.

       --arch-specific, -A
              Display architecture-specific information, e.g. the ARM attributes section on ARM.

       --bb-addr-map
              Display the contents of the basic block address map section(s), which  contain  the
              address of each function, along with the relative offset of each basic block.

       --demangle, -C
              Display demangled symbol names in the output.

       --dependent-libraries
              Display the dependent libraries section.

       --dyn-relocations
              Display the dynamic relocation entries.

       --dyn-symbols, --dyn-syms, --dt
              Display the dynamic symbol table.

       --dynamic-table, --dynamic, -d
              Display the dynamic table.

       --cg-profile
              Display the callgraph profile section.

       --histogram, -I
              Display a bucket list histogram for dynamic symbol hash tables.

       --elf-linker-options
              Display the linker options section.

       --elf-output-style=<value>
              Format ELF information in the specified style. Valid options are LLVM and GNU. LLVM
              output (the default) is an expanded and structured format, whilst GNU output mimics
              the equivalent GNU readelf output.

       --section-groups, -g
              Display section groups.

       --gnu-hash-table
              Display the GNU hash table for dynamic symbols.

       --hash-symbols
              Display the expanded hash table with dynamic symbol data.

       --hash-table
              Display the hash table for dynamic symbols.

       --notes, -n
              Display all notes.

       --program-headers, --segments, -l
              Display the program headers.

       --raw-relr
              Do not decode relocations in RELR relocation sections when displaying them.

       --section-mapping
              Display the section to segment mapping.

       --stack-sizes
              Display  the  contents  of the stack sizes section(s), i.e. pairs of function names
              and the size of their stack  frames.  Currently  only  implemented  for  GNU  style
              output.

       --version-info, -V
              Display version sections.

MACH-O SPECIFIC OPTIONS

       The following options are implemented only for the Mach-O file format.

       --macho-data-in-code
              Display the Data in Code command.

       --macho-dsymtab
              Display the Dsymtab command.

       --macho-indirect-symbols
              Display indirect symbols.

       --macho-linker-options
              Display the Mach-O-specific linker options.

       --macho-segment
              Display the Segment command.

       --macho-version-min
              Display the version min command.

PE/COFF SPECIFIC OPTIONS

       The following options are implemented only for the PE/COFF file format.

       --codeview
              Display CodeView debug information.

       --codeview-ghash
              Enable global hashing for CodeView type stream de-duplication.

       --codeview-merged-types
              Display the merged CodeView type stream.

       --codeview-subsection-bytes
              Dump raw contents of CodeView debug sections and records.

       --coff-basereloc
              Display the .reloc section.

       --coff-debug-directory
              Display the debug directory.

       --coff-tls-directory
              Display the TLS directory.

       --coff-directives
              Display the .drectve section.

       --coff-exports
              Display the export table.

       --coff-imports
              Display the import table.

       --coff-load-config
              Display the load config.

       --coff-resources
              Display the .rsrc section.

EXIT STATUS

       llvm-readobj  returns  0  under normal operation. It returns a non-zero exit code if there
       were any errors.

SEE ALSO

       llvm-nm(1), llvm-objdump(1), llvm-readelf(1)

AUTHOR

       Maintained by the LLVM Team (https://llvm.org/).

COPYRIGHT

       2003-2023, LLVM Project