I'm trying to figure out why the fossil-scm compiled with tinycc on arm doesn't work as expected and again with my previous experience trying to figure out why tinycc was generating bad code on X86_64 I found that having function names on the generated .stabs is better than nothing but when we step through the code with gdb to find bugs it's a pain not been able to see parameters and local variables values.
I looked at the code and found that maybe would not be so hard to add more .stabs info in this function:
static void put_func_debug(TCCState* tcc_state, Sym *sym)
/* stabs info */
/* XXX: we put here a dummy type */
snprintf(buf, sizeof(buf), "%s:%c1",
tcc_state->tccgen_funcname, sym->type.t & VT_STATIC ? 'f' : 'F');
put_stabs_r(tcc_state, buf, N_FUN, 0, tcc_state->tccpp_file->line_num, 0,
/* //gr gdb wants a line at the function */
put_stabn(tcc_state, N_SLINE, 0, tcc_state->tccpp_file->line_num, 0);
tcc_state->tccgen_last_ind = 0;
tcc_state->tccgen_last_line_num = 0;
But as we was talking on other thread not knowing how the information is stored in the AST to use it here is sad.