46 buffer_ext_dump(struct buffer_ext *be, const char *msg)  in buffer_ext_dump()  argument
50 	for (i = 0 ; i < be->cur_pos; i++)  in buffer_ext_dump()
51 		warnx("%4zu 0x%02x", i, (((char *)be->data)[i]) & 0xff);  in buffer_ext_dump()
55 buffer_ext_add(struct buffer_ext *be, void *addr, size_t sz)  in buffer_ext_add()  argument
58 	size_t be_sz = be->max_sz;  in buffer_ext_add()
61 	if ((be->cur_pos + sz) < be_sz) {  in buffer_ext_add()
62 		memcpy(be->data + be->cur_pos, addr, sz);  in buffer_ext_add()
63 		be->cur_pos += sz;  in buffer_ext_add()
72 	tmp = realloc(be->data, be_sz);  in buffer_ext_add()
76 	be->data   = tmp;  in buffer_ext_add()
77 	be->max_sz = be_sz;  in buffer_ext_add()
83 buffer_ext_init(struct buffer_ext *be)  in buffer_ext_init()  argument
85 	be->data = NULL;  in buffer_ext_init()
86 	be->cur_pos = 0;  in buffer_ext_init()
87 	be->max_sz = 0;  in buffer_ext_init()
91 buffer_ext_size(struct buffer_ext *be)  in buffer_ext_size()  argument
93 	return be->cur_pos;  in buffer_ext_size()
97 buffer_ext_addr(struct buffer_ext *be)  in buffer_ext_addr()  argument
99 	return be->data;  in buffer_ext_addr()
179 static void emit_uword(struct buffer_ext *be, uword data)  in emit_uword()  argument
181 	buffer_ext_add(be, &data, sizeof(uword));  in emit_uword()
184 static void emit_string(struct buffer_ext *be, const char *s)  in emit_string()  argument
186 	buffer_ext_add(be, (void *)s, strlen(s) + 1);  in emit_string()
189 static void emit_unsigned_LEB128(struct buffer_ext *be,  in emit_unsigned_LEB128()  argument
197 		buffer_ext_add(be, &cur, 1);  in emit_unsigned_LEB128()
201 static void emit_signed_LEB128(struct buffer_ext *be, long data)  in emit_signed_LEB128()  argument
216 		buffer_ext_add(be, &cur, 1);  in emit_signed_LEB128()
220 static void emit_extended_opcode(struct buffer_ext *be, ubyte opcode,  in emit_extended_opcode()  argument
223 	buffer_ext_add(be, (char *)"", 1);  in emit_extended_opcode()
225 	emit_unsigned_LEB128(be, data_len + 1);  in emit_extended_opcode()
227 	buffer_ext_add(be, &opcode, 1);  in emit_extended_opcode()
228 	buffer_ext_add(be, data, data_len);  in emit_extended_opcode()
231 static void emit_opcode(struct buffer_ext *be, ubyte opcode)  in emit_opcode()  argument
233 	buffer_ext_add(be, &opcode, 1);  in emit_opcode()
236 static void emit_opcode_signed(struct buffer_ext  *be,  in emit_opcode_signed()  argument
239 	buffer_ext_add(be, &opcode, 1);  in emit_opcode_signed()
240 	emit_signed_LEB128(be, data);  in emit_opcode_signed()
243 static void emit_opcode_unsigned(struct buffer_ext *be, ubyte opcode,  in emit_opcode_unsigned()  argument
246 	buffer_ext_add(be, &opcode, 1);  in emit_opcode_unsigned()
247 	emit_unsigned_LEB128(be, data);  in emit_opcode_unsigned()
250 static void emit_advance_pc(struct buffer_ext *be, unsigned long delta_pc)  in emit_advance_pc()  argument
252 	emit_opcode_unsigned(be, DW_LNS_advance_pc, delta_pc);  in emit_advance_pc()
255 static void emit_advance_lineno(struct buffer_ext  *be, long delta_lineno)  in emit_advance_lineno()  argument
257 	emit_opcode_signed(be, DW_LNS_advance_line, delta_lineno);  in emit_advance_lineno()
260 static void emit_lne_end_of_sequence(struct buffer_ext *be)  in emit_lne_end_of_sequence()  argument
262 	emit_extended_opcode(be, DW_LNE_end_sequence, NULL, 0);  in emit_lne_end_of_sequence()
265 static void emit_set_file(struct buffer_ext *be, unsigned long idx)  in emit_set_file()  argument
267 	emit_opcode_unsigned(be, DW_LNS_set_file, idx);  in emit_set_file()
270 static void emit_lne_define_filename(struct buffer_ext *be,  in emit_lne_define_filename()  argument
273 	buffer_ext_add(be, (void *)"", 1);  in emit_lne_define_filename()
276 	emit_unsigned_LEB128(be, strlen(filename) + 5);  in emit_lne_define_filename()
277 	emit_opcode(be, DW_LNE_define_file);  in emit_lne_define_filename()
278 	emit_string(be, filename);  in emit_lne_define_filename()
280         emit_unsigned_LEB128(be, 0);  in emit_lne_define_filename()
282         emit_unsigned_LEB128(be, 0);  in emit_lne_define_filename()
284         emit_unsigned_LEB128(be, 0);  in emit_lne_define_filename()
287 static void emit_lne_set_address(struct buffer_ext *be,  in emit_lne_set_address()  argument
290 	emit_extended_opcode(be, DW_LNE_set_address, &address, sizeof(unsigned long));  in emit_lne_set_address()
327 static void emit_lineno_info(struct buffer_ext *be,  in emit_lineno_info()  argument
350 	emit_lne_set_address(be, (void *)code_addr);  in emit_lineno_info()
360 			emit_lne_define_filename(be, ent->name);  in emit_lineno_info()
362 			emit_set_file(be, ++cur_file_idx);  in emit_lineno_info()
370 			emit_opcode(be, special_opcode);  in emit_lineno_info()
376 				emit_advance_lineno(be, ent->lineno - last_line);  in emit_lineno_info()
384 				emit_advance_pc(be, ent->addr - last_vma);  in emit_lineno_info()
392 				emit_opcode(be, DW_LNS_copy);  in emit_lineno_info()
397 static void add_debug_line(struct buffer_ext *be,  in add_debug_line()  argument
404 	old_size = buffer_ext_size(be);  in add_debug_line()
406 	buffer_ext_add(be, (void *)&default_debug_line_header,  in add_debug_line()
409 	buffer_ext_add(be, &standard_opcode_length,  sizeof(standard_opcode_length));  in add_debug_line()
412 	buffer_ext_add(be, (void *)"", 1);  in add_debug_line()
415 	buffer_ext_add(be, (void *)"", 1);  in add_debug_line()
417 	dbg_header = buffer_ext_addr(be) + old_size;  in add_debug_line()
418 	dbg_header->prolog_length = (buffer_ext_size(be) - old_size) -  in add_debug_line()
421 	emit_lineno_info(be, ent, nr_entry, code_addr);  in add_debug_line()
423 	emit_lne_end_of_sequence(be);  in add_debug_line()
425 	dbg_header = buffer_ext_addr(be) + old_size;  in add_debug_line()
426 	dbg_header->total_length = (buffer_ext_size(be) - old_size) -  in add_debug_line()
431 add_debug_abbrev(struct buffer_ext *be)  in add_debug_abbrev()  argument
433         emit_unsigned_LEB128(be, 1);  in add_debug_abbrev()
434         emit_unsigned_LEB128(be, DW_TAG_compile_unit);  in add_debug_abbrev()
435         emit_unsigned_LEB128(be, DW_CHILDREN_yes);  in add_debug_abbrev()
436         emit_unsigned_LEB128(be, DW_AT_stmt_list);  in add_debug_abbrev()
437         emit_unsigned_LEB128(be, DW_FORM_data4);  in add_debug_abbrev()
438         emit_unsigned_LEB128(be, 0);  in add_debug_abbrev()
439         emit_unsigned_LEB128(be, 0);  in add_debug_abbrev()
440         emit_unsigned_LEB128(be, 0);  in add_debug_abbrev()
444 add_compilation_unit(struct buffer_ext *be,  in add_compilation_unit()  argument
448 	size_t old_size = buffer_ext_size(be);  in add_compilation_unit()
450 	buffer_ext_add(be, &default_comp_unit_header,  in add_compilation_unit()
453 	emit_unsigned_LEB128(be, 1);  in add_compilation_unit()
454 	emit_uword(be, offset_debug_line);  in add_compilation_unit()
456 	comp_unit_header = buffer_ext_addr(be) + old_size;  in add_compilation_unit()
457 	comp_unit_header->total_length = (buffer_ext_size(be) - old_size) -  in add_compilation_unit()