On Thu, Dec 27, 2018 at 10:46:39AM -0500, Jeffrey Walton wrote: > $ objdump.exe -disassemble sm4_simd.o There is no "-disassemble" option (there is a --disassemble). What you asked for here is equivalent to -d -i -s -a -e -mble, and -i is like --help in that the info or help is displayed and then objdump exits. -- Alan Modra Australia Development Lab, IBM