diff options
Diffstat (limited to 'i386-gen.c')
| -rw-r--r-- | i386-gen.c | 14 |
1 files changed, 8 insertions, 6 deletions
@@ -107,6 +107,7 @@ static unsigned long func_sub_sp_offset; static int func_ret_sub; #ifdef CONFIG_TCC_BCHECK static addr_t func_bound_offset; +static unsigned long func_bound_ind; #endif /* XXX: make it faster ? */ @@ -611,9 +612,10 @@ ST_FUNC void gfunc_prolog(CType *func_type) #ifdef CONFIG_TCC_BCHECK /* leave some room for bound checking code */ if (tcc_state->do_bounds_check) { + func_bound_offset = lbounds_section->data_offset; + func_bound_ind = ind; oad(0xb8, 0); /* lbound section pointer */ oad(0xb8, 0); /* call to function */ - func_bound_offset = lbounds_section->data_offset; } #endif } @@ -629,27 +631,27 @@ ST_FUNC void gfunc_epilog(void) addr_t saved_ind; addr_t *bounds_ptr; Sym *sym_data; + /* add end of table info */ bounds_ptr = section_ptr_add(lbounds_section, sizeof(addr_t)); *bounds_ptr = 0; + /* generate bound local allocation */ saved_ind = ind; - ind = func_sub_sp_offset; + ind = func_bound_ind; sym_data = get_sym_ref(&char_pointer_type, lbounds_section, func_bound_offset, lbounds_section->data_offset); greloc(cur_text_section, sym_data, ind + 1, R_386_32); oad(0xb8, 0); /* mov %eax, xxx */ gen_static_call(TOK___bound_local_new); - ind = saved_ind; + /* generate bound check local freeing */ o(0x5250); /* save returned value, if any */ - greloc(cur_text_section, sym_data, - ind + 1, R_386_32); + greloc(cur_text_section, sym_data, ind + 1, R_386_32); oad(0xb8, 0); /* mov %eax, xxx */ gen_static_call(TOK___bound_local_delete); - o(0x585a); /* restore returned value, if any */ } #endif |