getting mixed C and inline assembly from gcc

Question

I'm trying to diagnose why a seemingly small C function I wrote has produced a large .text section. I have used arm-elf-size and arm-elf-objdump to isolate the object file and function, but I have only been able to get these tools to produce assembly code, which I don't have the time to reverse engineer.

I tried using gcc switches "-g" which is supposed to be compatible with arm-elf-objdump -g, but it keeps producing the error "No debugging information found," which I've googled around for a bit with no clear cut answer (though other people had an identical problem).

Is there any other means of producing mixed C/assembly files so I can isolate the trouble spot in the function? Thanks!

Answer 1

Is there any other means of producing mixed C/assembly files so I can isolate the trouble spot in the function?

gcc/gas can generate an assembler listing with C source; I recommend these compiler options:

-g -Wa,-adhln=filename.lst