常用反汇编命令

gcc 反汇编

arm-none-eabi-objdump.exe -d .\rtthread.elf > rtthread.asm

• arm-none-eabi-objdump.exe：反汇编用到的编译器
• -d ：disassemble 表示反汇编
• rtthread.elf：表示需要反汇编的文件
• rtthread.asm：生成的汇编文件的名称(注意前面的 > 符号)

gcc 反汇编命令帮助

Usage: arm-none-eabi-objdump.exe <option(s)> <file(s)>
 Display information from object <file(s)>.
 At least one of the following switches must be given:
  -a, --archive-headers    Display archive header information
  -f, --file-headers       Display the contents of the overall file header
  -p, --private-headers    Display object format specific file header contents
  -P, --private=OPT,OPT... Display object format specific contents
  -h, --[section-]headers  Display the contents of the section headers
  -x, --all-headers        Display the contents of all headers
  -d, --disassemble        Display assembler contents of executable sections
  -D, --disassemble-all    Display assembler contents of all sections
  -S, --source             Intermix source code with disassembly
  -s, --full-contents      Display the full contents of all sections requested
  -g, --debugging          Display debug information in object file
  -e, --debugging-tags     Display debug information using ctags style
  -G, --stabs              Display (in raw form) any STABS info in the file
  -W[lLiaprmfFsoRt] or
  --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,
          =frames-interp,=str,=loc,=Ranges,=pubtypes,
          =gdb_index,=trace_info,=trace_abbrev,=trace_aranges,
          =addr,=cu_index]
                           Display DWARF info in the file
  -t, --syms               Display the contents of the symbol table(s)
  -T, --dynamic-syms       Display the contents of the dynamic symbol table
  -r, --reloc              Display the relocation entries in the file
  -R, --dynamic-reloc      Display the dynamic relocation entries in the file
  @<file>                  Read options from <file>
  -v, --version            Display this program's version number
  -i, --info               List object formats and architectures supported
  -H, --help               Display this information

armcc 反汇编

D:\SoftWare_Application\Keil_MDK_5.32\ARM\ARMCC\bin\fromelf.exe  -cvd rtthread.elf --output rtthread.asm

• xxx\fromelf.exe ：反汇编用到的编译器
• c： disassemble code 反汇编代码
• v： verbose 详细的
• d： print contents of data section 打印数据段信息
• rtthread.elf： 需要反汇编的输入文件
• –output： 指定输出文件的命令
• rtthread.asm： 生成的汇编文件

armcc 反汇编帮助命令

fromelf [options] input_file

Options:
       --help         display this help screen
       --vsn          display version information
       --output file  the output file. (defaults to stdout for -text format)
       --nodebug      do not put debug areas in the output image
       --nolinkview   do not put sections in the output image

Binary Output Formats:
       --bin          Plain Binary
       --m32          Motorola 32 bit Hex
       --i32          Intel 32 bit Hex
       --vhx          Byte Oriented Hex format

       --base addr    Optionally set base address for m32,i32

Output Formats Requiring Debug Information
       --fieldoffsets Assembly Language Description of Structures/Classes
       --expandarrays Arrays inside and outside structures are expanded

Other Output Formats:
       --elf         ELF
       --text        Text Information

                Flags for Text Information
                -v          verbose
                -a          print data addresses (For images built with debug)
                -c          disassemble code
                -d          print contents of data section
                -e          print exception tables
                -g          print debug tables
                -r          print relocation information
                -s          print symbol table
                -t          print string table
                -y          print dynamic segment contents
                -z          print code and data size information