47 buffer_ext_dump(struct buffer_ext *be, const char *msg)  in buffer_ext_dump()  argument
51 	for (i = 0 ; i < be->cur_pos; i++)  in buffer_ext_dump()
52 		warnx("%4zu 0x%02x", i, (((char *)be->data)[i]) & 0xff);  in buffer_ext_dump()
56 buffer_ext_add(struct buffer_ext *be, void *addr, size_t sz)  in buffer_ext_add()  argument
59 	size_t be_sz = be->max_sz;  in buffer_ext_add()
62 	if ((be->cur_pos + sz) < be_sz) {  in buffer_ext_add()
63 		memcpy(be->data + be->cur_pos, addr, sz);  in buffer_ext_add()
64 		be->cur_pos += sz;  in buffer_ext_add()
73 	tmp = realloc(be->data, be_sz);  in buffer_ext_add()
77 	be->data   = tmp;  in buffer_ext_add()
78 	be->max_sz = be_sz;  in buffer_ext_add()
84 buffer_ext_init(struct buffer_ext *be)  in buffer_ext_init()  argument
86 	be->data = NULL;  in buffer_ext_init()
87 	be->cur_pos = 0;  in buffer_ext_init()
88 	be->max_sz = 0;  in buffer_ext_init()
92 buffer_ext_exit(struct buffer_ext *be)  in buffer_ext_exit()  argument
94 	zfree(&be->data);  in buffer_ext_exit()
98 buffer_ext_size(struct buffer_ext *be)  in buffer_ext_size()  argument
100 	return be->cur_pos;  in buffer_ext_size()
104 buffer_ext_addr(struct buffer_ext *be)  in buffer_ext_addr()  argument
106 	return be->data;  in buffer_ext_addr()
156 	.minimum_instruction_length = 1,	/* could be better when min instruction size != 1 */
186 static void emit_uword(struct buffer_ext *be, uword data)  in emit_uword()  argument
188 	buffer_ext_add(be, &data, sizeof(uword));  in emit_uword()
191 static void emit_string(struct buffer_ext *be, const char *s)  in emit_string()  argument
193 	buffer_ext_add(be, (void *)s, strlen(s) + 1);  in emit_string()
196 static void emit_unsigned_LEB128(struct buffer_ext *be,  in emit_unsigned_LEB128()  argument
204 		buffer_ext_add(be, &cur, 1);  in emit_unsigned_LEB128()
208 static void emit_signed_LEB128(struct buffer_ext *be, long data)  in emit_signed_LEB128()  argument
223 		buffer_ext_add(be, &cur, 1);  in emit_signed_LEB128()
227 static void emit_extended_opcode(struct buffer_ext *be, ubyte opcode,  in emit_extended_opcode()  argument
230 	buffer_ext_add(be, (char *)"", 1);  in emit_extended_opcode()
232 	emit_unsigned_LEB128(be, data_len + 1);  in emit_extended_opcode()
234 	buffer_ext_add(be, &opcode, 1);  in emit_extended_opcode()
235 	buffer_ext_add(be, data, data_len);  in emit_extended_opcode()
238 static void emit_opcode(struct buffer_ext *be, ubyte opcode)  in emit_opcode()  argument
240 	buffer_ext_add(be, &opcode, 1);  in emit_opcode()
243 static void emit_opcode_signed(struct buffer_ext  *be,  in emit_opcode_signed()  argument
246 	buffer_ext_add(be, &opcode, 1);  in emit_opcode_signed()
247 	emit_signed_LEB128(be, data);  in emit_opcode_signed()
250 static void emit_opcode_unsigned(struct buffer_ext *be, ubyte opcode,  in emit_opcode_unsigned()  argument
253 	buffer_ext_add(be, &opcode, 1);  in emit_opcode_unsigned()
254 	emit_unsigned_LEB128(be, data);  in emit_opcode_unsigned()
257 static void emit_advance_pc(struct buffer_ext *be, unsigned long delta_pc)  in emit_advance_pc()  argument
259 	emit_opcode_unsigned(be, DW_LNS_advance_pc, delta_pc);  in emit_advance_pc()
262 static void emit_advance_lineno(struct buffer_ext  *be, long delta_lineno)  in emit_advance_lineno()  argument
264 	emit_opcode_signed(be, DW_LNS_advance_line, delta_lineno);  in emit_advance_lineno()
267 static void emit_lne_end_of_sequence(struct buffer_ext *be)  in emit_lne_end_of_sequence()  argument
269 	emit_extended_opcode(be, DW_LNE_end_sequence, NULL, 0);  in emit_lne_end_of_sequence()
272 static void emit_set_file(struct buffer_ext *be, unsigned long idx)  in emit_set_file()  argument
274 	emit_opcode_unsigned(be, DW_LNS_set_file, idx);  in emit_set_file()
277 static void emit_lne_define_filename(struct buffer_ext *be,  in emit_lne_define_filename()  argument
280 	buffer_ext_add(be, (void *)"", 1);  in emit_lne_define_filename()
283 	emit_unsigned_LEB128(be, strlen(filename) + 5);  in emit_lne_define_filename()
284 	emit_opcode(be, DW_LNE_define_file);  in emit_lne_define_filename()
285 	emit_string(be, filename);  in emit_lne_define_filename()
287         emit_unsigned_LEB128(be, 0);  in emit_lne_define_filename()
289         emit_unsigned_LEB128(be, 0);  in emit_lne_define_filename()
291         emit_unsigned_LEB128(be, 0);  in emit_lne_define_filename()
294 static void emit_lne_set_address(struct buffer_ext *be,  in emit_lne_set_address()  argument
297 	emit_extended_opcode(be, DW_LNE_set_address, &address, sizeof(unsigned long));  in emit_lne_set_address()
320 	/* This is not sufficient to ensure opcode will be in [0-256] but  in get_special_opcode()
334 static void emit_lineno_info(struct buffer_ext *be,  in emit_lineno_info()  argument
360 	emit_lne_set_address(be, (void *)code_addr);  in emit_lineno_info()
371 			emit_lne_define_filename(be, ent->name);  in emit_lineno_info()
373 			emit_set_file(be, ++cur_file_idx);  in emit_lineno_info()
381 			emit_opcode(be, special_opcode);  in emit_lineno_info()
387 				emit_advance_lineno(be, ent->lineno - last_line);  in emit_lineno_info()
395 				emit_advance_pc(be, ent->addr - last_vma);  in emit_lineno_info()
403 				emit_opcode(be, DW_LNS_copy);  in emit_lineno_info()
408 static void add_debug_line(struct buffer_ext *be,  in add_debug_line()  argument
415 	old_size = buffer_ext_size(be);  in add_debug_line()
417 	buffer_ext_add(be, (void *)&default_debug_line_header,  in add_debug_line()
420 	buffer_ext_add(be, &standard_opcode_length,  sizeof(standard_opcode_length));  in add_debug_line()
423 	buffer_ext_add(be, (void *)"", 1);  in add_debug_line()
426 	buffer_ext_add(be, (void *)"", 1);  in add_debug_line()
428 	dbg_header = buffer_ext_addr(be) + old_size;  in add_debug_line()
429 	dbg_header->prolog_length = (buffer_ext_size(be) - old_size) -  in add_debug_line()
432 	emit_lineno_info(be, ent, nr_entry, code_addr);  in add_debug_line()
434 	emit_lne_end_of_sequence(be);  in add_debug_line()
436 	dbg_header = buffer_ext_addr(be) + old_size;  in add_debug_line()
437 	dbg_header->total_length = (buffer_ext_size(be) - old_size) -  in add_debug_line()
442 add_debug_abbrev(struct buffer_ext *be)  in add_debug_abbrev()  argument
444         emit_unsigned_LEB128(be, 1);  in add_debug_abbrev()
445         emit_unsigned_LEB128(be, DW_TAG_compile_unit);  in add_debug_abbrev()
446         emit_unsigned_LEB128(be, DW_CHILDREN_yes);  in add_debug_abbrev()
447         emit_unsigned_LEB128(be, DW_AT_stmt_list);  in add_debug_abbrev()
448         emit_unsigned_LEB128(be, DW_FORM_data4);  in add_debug_abbrev()
449         emit_unsigned_LEB128(be, 0);  in add_debug_abbrev()
450         emit_unsigned_LEB128(be, 0);  in add_debug_abbrev()
451         emit_unsigned_LEB128(be, 0);  in add_debug_abbrev()
455 add_compilation_unit(struct buffer_ext *be,  in add_compilation_unit()  argument
459 	size_t old_size = buffer_ext_size(be);  in add_compilation_unit()
461 	buffer_ext_add(be, &default_comp_unit_header,  in add_compilation_unit()
464 	emit_unsigned_LEB128(be, 1);  in add_compilation_unit()
465 	emit_uword(be, offset_debug_line);  in add_compilation_unit()
467 	comp_unit_header = buffer_ext_addr(be) + old_size;  in add_compilation_unit()
468 	comp_unit_header->total_length = (buffer_ext_size(be) - old_size) -  in add_compilation_unit()
540 	shdr->sh_addr = 0; /* must be zero or == sh_offset -> dynamic object */  in jit_add_debug_info()
574 	shdr->sh_addr = 0; /* must be zero or == sh_offset -> dynamic object */  in jit_add_debug_info()
608 	shdr->sh_addr = 0; /* must be zero or == sh_offset -> dynamic object */  in jit_add_debug_info()