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Preface Arm Compiler Tools Overview armclang Reference armlink Reference fromelf Reference fromelf Command-line Options --base [[object_file::]load_region_ID=]num --bin --bincombined --bincombined_base=address --bincombined_padding=size,num --cad --cadcombined --compare=option[,option,…] --continue_on_error --coprocN=value (fromelf) --cpu=list (fromelf) --cpu=name (fromelf) --datasymbols --debugonly --decode_build_attributes --diag_error=tag[,tag,…] (fromelf) --diag_remark=tag[,tag,…] (fromelf) --diag_style={arm|ide|gnu} (fromelf) --diag_suppress=tag[,tag,…] (fromelf) --diag_warning=tag[,tag,…] (fromelf) --disassemble --dump_build_attributes --elf --emit=option[,option,…] --expandarrays --extract_build_attributes --fieldoffsets --fpu=list (fromelf) --fpu=name (fromelf) --globalize=option[,option,…] --help (fromelf) --hide=option[,option,…] --hide_and_localize=option[,option,…] --i32 --i32combined --ignore_section=option[,option,…] --ignore_symbol=option[,option,…] --in_place --info=topic[,topic,…] (fromelf) input_file (fromelf) --interleave=option --linkview, --no_linkview --localize=option[,option,…] --m32 --m32combined --only=section_name --output=destination --privacy (fromelf) --qualify --relax_section=option[,option,…] --relax_symbol=option[,option,…] --rename=option[,option,…] --select=select_options --show=option[,option,…] --show_and_globalize=option[,option,…] --show_cmdline (fromelf) --source_directory=path --strip=option[,option,…] --symbolversions, --no_symbolversions --text --version_number (fromelf) --vhx --via=file (fromelf) --vsn (fromelf) -w --wide64bit --widthxbanks armar Reference armasm Legacy Assembler Reference Appendixes

--disassemble

D1.21 --disassemble

Displays a disassembled version of the image to stdout. Disassembly is generated in armasm assembler syntax and not GNU assembler syntax.

Usage

If you use this option with --output destination, you can reassemble the output file with armasm.

You can use this option to disassemble either an ELF image or an ELF object file.

Note:

The output is not the same as that from --emit=code and --text -c.

Note:

To disassemble M-profile Vector Extension (MVE) instructions, you must specify the --cpu option for Arm®v8.1-M and later architectures. For example, --cpu=8.1-M.Main.mve.

To disassemble Scalable Vector Extension (SVE) instructions, you must not specify the --cpu option. fromelf cannot disassemble Armv8.4-A and later instructions without also disassembling Scalable Vector Extension SVE instructions.

armasm does not support:

  • Armv8.4-A and later architectures.
  • Certain backported options in Armv8.2-A and Armv8.3-A.
  • Assembling MVE or SVE instructions.

Example

To disassemble the ELF file infile.axf for the Cortex®‑A7 processor and create a source file outfile.asm, enter:

fromelf --cpu=Cortex-A7 --disassemble --output=outfile.asm infile.axf
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