buffer_ext_add
buffer_ext_add(be, &data, sizeof(uword));
buffer_ext_add(be, (void *)s, strlen(s) + 1);
buffer_ext_add(be, &cur, 1);
buffer_ext_add(be, &cur, 1);
buffer_ext_add(be, (char *)"", 1);
buffer_ext_add(be, &opcode, 1);
buffer_ext_add(be, data, data_len);
buffer_ext_add(be, &opcode, 1);
buffer_ext_add(be, &opcode, 1);
buffer_ext_add(be, &opcode, 1);
buffer_ext_add(be, (void *)"", 1);
buffer_ext_add(be, (void *)&default_debug_line_header,
buffer_ext_add(be, &standard_opcode_length, sizeof(standard_opcode_length));
buffer_ext_add(be, (void *)"", 1);
buffer_ext_add(be, (void *)"", 1);
buffer_ext_add(be, &default_comp_unit_header,