Software discussion

However nasm does not generate debug information on osx yet.

So, I generated elf format and used objconv to convert back to macho
(bin/nasm -felf -Fstabs hello_asm_func.asm -l hello_asm_func.lst)

However objconv appears to remove debug symbols

below is the message and simple asm sample

What do I need to do to retain debug symbols? (to debug with gdb)

Thank you in advance for any suggestions
Ajit

$ bin/objconv -fmac32 -nu hello_asm_func.o test.o

Input file: hello_asm_func.o, output file: test.o
Converting from ELF32 to Mach-O Little Endian32
Adding leading underscores to symbol names

2 Debug sections removed
0 Exception sections removed
1 Changes in leading underscores on symbol names

****************** Sample Code ************************

section .text
global _hello_asm ;must be declared for linker (ld)

_syscall:
int 0x80 ;system call
ret

_hello_asm: ;entry point for linker

push ebp ;save callers stack
mov ebp, esp ;establish new stack frame
push esi ;save critical registers
push edi

push dword len ;message length
push dword msg ;message to write
push dword 1 ;file descriptor (stdout)
mov eax,0x4 ;system call number (sys_write)
call _syscall ;call kernel

pop edi ;restore registers
pop esi
mov esp, ebp
pop ebp ;clean up stack
ret

section .data

msg db "hello from asm!",0xa ;our dear string
len equ $ - msg ;length of our dear string