48 buffer_ext_dump(struct buffer_ext *be, const char *msg)  in buffer_ext_dump()  argument
52 	for (i = 0 ; i < be->cur_pos; i++)  in buffer_ext_dump()
53 		warnx("%4zu 0x%02x", i, (((char *)be->data)[i]) & 0xff);  in buffer_ext_dump()
57 buffer_ext_add(struct buffer_ext *be, void *addr, size_t sz)  in buffer_ext_add()  argument
60 	size_t be_sz = be->max_sz;  in buffer_ext_add()
63 	if ((be->cur_pos + sz) < be_sz) {  in buffer_ext_add()
64 		memcpy(be->data + be->cur_pos, addr, sz);  in buffer_ext_add()
65 		be->cur_pos += sz;  in buffer_ext_add()
74 	tmp = realloc(be->data, be_sz);  in buffer_ext_add()
78 	be->data   = tmp;  in buffer_ext_add()
79 	be->max_sz = be_sz;  in buffer_ext_add()
85 buffer_ext_init(struct buffer_ext *be)  in buffer_ext_init()  argument
87 	be->data = NULL;  in buffer_ext_init()
88 	be->cur_pos = 0;  in buffer_ext_init()
89 	be->max_sz = 0;  in buffer_ext_init()
93 buffer_ext_size(struct buffer_ext *be)  in buffer_ext_size()  argument
95 	return be->cur_pos;  in buffer_ext_size()
99 buffer_ext_addr(struct buffer_ext *be)  in buffer_ext_addr()  argument
101 	return be->data;  in buffer_ext_addr()
181 static void emit_uword(struct buffer_ext *be, uword data)  in emit_uword()  argument
183 	buffer_ext_add(be, &data, sizeof(uword));  in emit_uword()
186 static void emit_string(struct buffer_ext *be, const char *s)  in emit_string()  argument
188 	buffer_ext_add(be, (void *)s, strlen(s) + 1);  in emit_string()
191 static void emit_unsigned_LEB128(struct buffer_ext *be,  in emit_unsigned_LEB128()  argument
199 		buffer_ext_add(be, &cur, 1);  in emit_unsigned_LEB128()
203 static void emit_signed_LEB128(struct buffer_ext *be, long data)  in emit_signed_LEB128()  argument
218 		buffer_ext_add(be, &cur, 1);  in emit_signed_LEB128()
222 static void emit_extended_opcode(struct buffer_ext *be, ubyte opcode,  in emit_extended_opcode()  argument
225 	buffer_ext_add(be, (char *)"", 1);  in emit_extended_opcode()
227 	emit_unsigned_LEB128(be, data_len + 1);  in emit_extended_opcode()
229 	buffer_ext_add(be, &opcode, 1);  in emit_extended_opcode()
230 	buffer_ext_add(be, data, data_len);  in emit_extended_opcode()
233 static void emit_opcode(struct buffer_ext *be, ubyte opcode)  in emit_opcode()  argument
235 	buffer_ext_add(be, &opcode, 1);  in emit_opcode()
238 static void emit_opcode_signed(struct buffer_ext  *be,  in emit_opcode_signed()  argument
241 	buffer_ext_add(be, &opcode, 1);  in emit_opcode_signed()
242 	emit_signed_LEB128(be, data);  in emit_opcode_signed()
245 static void emit_opcode_unsigned(struct buffer_ext *be, ubyte opcode,  in emit_opcode_unsigned()  argument
248 	buffer_ext_add(be, &opcode, 1);  in emit_opcode_unsigned()
249 	emit_unsigned_LEB128(be, data);  in emit_opcode_unsigned()
252 static void emit_advance_pc(struct buffer_ext *be, unsigned long delta_pc)  in emit_advance_pc()  argument
254 	emit_opcode_unsigned(be, DW_LNS_advance_pc, delta_pc);  in emit_advance_pc()
257 static void emit_advance_lineno(struct buffer_ext  *be, long delta_lineno)  in emit_advance_lineno()  argument
259 	emit_opcode_signed(be, DW_LNS_advance_line, delta_lineno);  in emit_advance_lineno()
262 static void emit_lne_end_of_sequence(struct buffer_ext *be)  in emit_lne_end_of_sequence()  argument
264 	emit_extended_opcode(be, DW_LNE_end_sequence, NULL, 0);  in emit_lne_end_of_sequence()
267 static void emit_set_file(struct buffer_ext *be, unsigned long idx)  in emit_set_file()  argument
269 	emit_opcode_unsigned(be, DW_LNS_set_file, idx);  in emit_set_file()
272 static void emit_lne_define_filename(struct buffer_ext *be,  in emit_lne_define_filename()  argument
275 	buffer_ext_add(be, (void *)"", 1);  in emit_lne_define_filename()
278 	emit_unsigned_LEB128(be, strlen(filename) + 5);  in emit_lne_define_filename()
279 	emit_opcode(be, DW_LNE_define_file);  in emit_lne_define_filename()
280 	emit_string(be, filename);  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()
286         emit_unsigned_LEB128(be, 0);  in emit_lne_define_filename()
289 static void emit_lne_set_address(struct buffer_ext *be,  in emit_lne_set_address()  argument
292 	emit_extended_opcode(be, DW_LNE_set_address, &address, sizeof(unsigned long));  in emit_lne_set_address()
329 static void emit_lineno_info(struct buffer_ext *be,  in emit_lineno_info()  argument
352 	emit_lne_set_address(be, (void *)code_addr);  in emit_lineno_info()
362 			emit_lne_define_filename(be, ent->name);  in emit_lineno_info()
364 			emit_set_file(be, ++cur_file_idx);  in emit_lineno_info()
372 			emit_opcode(be, special_opcode);  in emit_lineno_info()
378 				emit_advance_lineno(be, ent->lineno - last_line);  in emit_lineno_info()
386 				emit_advance_pc(be, ent->addr - last_vma);  in emit_lineno_info()
394 				emit_opcode(be, DW_LNS_copy);  in emit_lineno_info()
399 static void add_debug_line(struct buffer_ext *be,  in add_debug_line()  argument
406 	old_size = buffer_ext_size(be);  in add_debug_line()
408 	buffer_ext_add(be, (void *)&default_debug_line_header,  in add_debug_line()
411 	buffer_ext_add(be, &standard_opcode_length,  sizeof(standard_opcode_length));  in add_debug_line()
414 	buffer_ext_add(be, (void *)"", 1);  in add_debug_line()
417 	buffer_ext_add(be, (void *)"", 1);  in add_debug_line()
419 	dbg_header = buffer_ext_addr(be) + old_size;  in add_debug_line()
420 	dbg_header->prolog_length = (buffer_ext_size(be) - old_size) -  in add_debug_line()
423 	emit_lineno_info(be, ent, nr_entry, code_addr);  in add_debug_line()
425 	emit_lne_end_of_sequence(be);  in add_debug_line()
427 	dbg_header = buffer_ext_addr(be) + old_size;  in add_debug_line()
428 	dbg_header->total_length = (buffer_ext_size(be) - old_size) -  in add_debug_line()
433 add_debug_abbrev(struct buffer_ext *be)  in add_debug_abbrev()  argument
435         emit_unsigned_LEB128(be, 1);  in add_debug_abbrev()
436         emit_unsigned_LEB128(be, DW_TAG_compile_unit);  in add_debug_abbrev()
437         emit_unsigned_LEB128(be, DW_CHILDREN_yes);  in add_debug_abbrev()
438         emit_unsigned_LEB128(be, DW_AT_stmt_list);  in add_debug_abbrev()
439         emit_unsigned_LEB128(be, DW_FORM_data4);  in add_debug_abbrev()
440         emit_unsigned_LEB128(be, 0);  in add_debug_abbrev()
441         emit_unsigned_LEB128(be, 0);  in add_debug_abbrev()
442         emit_unsigned_LEB128(be, 0);  in add_debug_abbrev()
446 add_compilation_unit(struct buffer_ext *be,  in add_compilation_unit()  argument
450 	size_t old_size = buffer_ext_size(be);  in add_compilation_unit()
452 	buffer_ext_add(be, &default_comp_unit_header,  in add_compilation_unit()
455 	emit_unsigned_LEB128(be, 1);  in add_compilation_unit()
456 	emit_uword(be, offset_debug_line);  in add_compilation_unit()
458 	comp_unit_header = buffer_ext_addr(be) + old_size;  in add_compilation_unit()
459 	comp_unit_header->total_length = (buffer_ext_size(be) - old_size) -  in add_compilation_unit()