gcc-notes.md

objdump

显示文件二进制

两栏，左栏 hex，右栏 ascii，一行 16 Byte。

# Display the full contents of any sections requested
objdump -s 

配合 -j 可以只显示指定section的二进制

demangling、不显示指令二进制

objdump --no-show-raw-insn -dC hello

objcopy

复制 object file 中的某个 section

-S: Do not copy relocation and symbol information from the source file. Also deletes debug sections.
-j: Copy only the indicated sections from the input file to the output file.

# Display the full contents of any sections requested
objcopy -S -j .text -O binary %s.o %s.dl