dw2-producer.s

gdb-6.8 Linux下的调试程序 最新版本

/* This testcase is part of GDB, the GNU debugger.

   Copyright 2004, 2007, 2008 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* This file contains some basic DWARF info.  The only particularity about
   this info is that this compile unit does not have a DW_AT_producer
   attribute.  The rest is a straight copy of one of the other assembly
   files available in this directory.

   The intent of this testcase is to verify that GDB is able to handle
   the lack of the DW_AT_producer attribute without problem.  */

/* Dummy function to provide debug information for.  */

	.text
.Lbegin_text1:
	.globl func_cu1
	.type func_cu1, %function
func_cu1:
.Lbegin_func_cu1:
	.int 0
.Lend_func_cu1:
	.size func_cu1, .-func_cu1
.Lend_text1:

/* Debug information */

	.section .debug_info
.Lcu1_begin:
	/* CU header */
	.4byte	.Lcu1_end - .Lcu1_start		/* Length of Compilation Unit */
.Lcu1_start:
	.2byte	2				/* DWARF Version */
	.4byte	.Labbrev1_begin			/* Offset into abbrev section */
	.byte	4				/* Pointer size */

	/* CU die */
	.uleb128 1				/* Abbrev: DW_TAG_compile_unit */
	.4byte	.Lline1_begin			/* DW_AT_stmt_list */
	.4byte	.Lend_text1			/* DW_AT_high_pc */
	.4byte	.Lbegin_text1			/* DW_AT_low_pc */
	.ascii	"file1.txt\0"			/* DW_AT_name */
	.byte	1				/* DW_AT_language (C) */

	/* func_cu1 */
	.uleb128	2			/* Abbrev: DW_TAG_subprogram */
	.byte		1			/* DW_AT_external */
	.byte		1			/* DW_AT_decl_file */
	.byte		2			/* DW_AT_decl_line */
	.ascii		"func_cu1\0"		/* DW_AT_name */
	.4byte		.Ltype_int-.Lcu1_begin	/* DW_AT_type */
	.4byte		.Lbegin_func_cu1	/* DW_AT_low_pc */
	.4byte		.Lend_func_cu1		/* DW_AT_high_pc */
	.byte		1			/* DW_AT_frame_base: length */
	.byte		0x55			/* DW_AT_frame_base: DW_OP_reg5 */

.Ltype_int:
	.uleb128	3			/* Abbrev: DW_TAG_base_type */
	.ascii		"int\0"			/* DW_AT_name */
	.byte		4			/* DW_AT_byte_size */
	.byte		5			/* DW_AT_encoding */

	.byte		0			/* End of children of CU */

.Lcu1_end:

/* Abbrev table */
	.section .debug_abbrev
.Labbrev1_begin:
	.uleb128	1			/* Abbrev code */
	.uleb128	0x11			/* DW_TAG_compile_unit */
	.byte		1			/* has_children */
	.uleb128	0x10			/* DW_AT_stmt_list */
	.uleb128	0x6			/* DW_FORM_data4 */
	.uleb128	0x12			/* DW_AT_high_pc */
	.uleb128	0x1			/* DW_FORM_addr */
	.uleb128	0x11			/* DW_AT_low_pc */
	.uleb128	0x1			/* DW_FORM_addr */
	.uleb128	0x3			/* DW_AT_name */
	.uleb128	0x8			/* DW_FORM_string */
	.uleb128	0x13			/* DW_AT_language */
	.uleb128	0xb			/* DW_FORM_data1 */
	.byte		0x0			/* Terminator */
	.byte		0x0			/* Terminator */

	.uleb128	2			/* Abbrev code */
	.uleb128	0x2e			/* DW_TAG_subprogram */
	.byte		0			/* has_children */
	.uleb128	0x3f			/* DW_AT_external */
	.uleb128	0xc			/* DW_FORM_flag */
	.uleb128	0x3a			/* DW_AT_decl_file */
	.uleb128	0xb			/* DW_FORM_data1 */
	.uleb128	0x3b			/* DW_AT_decl_line */
	.uleb128	0xb			/* DW_FORM_data1 */
	.uleb128	0x3			/* DW_AT_name */
	.uleb128	0x8			/* DW_FORM_string */
	.uleb128	0x49			/* DW_AT_type */
	.uleb128	0x13			/* DW_FORM_ref4 */
	.uleb128	0x11			/* DW_AT_low_pc */
	.uleb128	0x1			/* DW_FORM_addr */
	.uleb128	0x12			/* DW_AT_high_pc */
	.uleb128	0x1			/* DW_FORM_addr */
	.uleb128	0x40			/* DW_AT_frame_base */
	.uleb128	0xa			/* DW_FORM_block1 */
	.byte		0x0			/* Terminator */
	.byte		0x0			/* Terminator */

	.uleb128	3			/* Abbrev code */
	.uleb128	0x24			/* DW_TAG_base_type */
	.byte		0			/* has_children */
	.uleb128	0x3			/* DW_AT_name */
	.uleb128	0x8			/* DW_FORM_string */
	.uleb128	0xb			/* DW_AT_byte_size */
	.uleb128	0xb			/* DW_FORM_data1 */
	.uleb128	0x3e			/* DW_AT_encoding */
	.uleb128	0xb			/* DW_FORM_data1 */
	.byte		0x0			/* Terminator */
	.byte		0x0			/* Terminator */

	.byte		0x0			/* Terminator */
	.byte		0x0			/* Terminator */

/* Line table */
	.section .debug_line
.Lline1_begin:
	.4byte		.Lline1_end - .Lline1_start	/* Initial length */
.Lline1_start:
	.2byte		2			/* Version */
	.4byte		.Lline1_lines - .Lline1_hdr	/* header_length */
.Lline1_hdr:
	.byte		1			/* Minimum insn length */
	.byte		1			/* default_is_stmt */
	.byte		1			/* line_base */
 	.byte		1			/* line_range */
	.byte		0x10			/* opcode_base */

	/* Standard lengths */
	.byte		0
	.byte		1
	.byte		1
	.byte		1
	.byte		1
	.byte		0
	.byte		0
	.byte		0
	.byte		1
	.byte		0
	.byte		0
	.byte		1
	.byte		0
	.byte		0
	.byte		0

	/* Include directories */
	.byte		0

	/* File names */
	.ascii		"file1.txt\0"
	.uleb128	0
	.uleb128	0
	.uleb128	0

	.byte		0

.Lline1_lines:
	.byte		0	/* DW_LNE_set_address */
	.uleb128	5
	.byte		2
	.4byte		.Lbegin_func_cu1

	.byte		3	/* DW_LNS_advance_line */
	.sleb128	3	/* ... to 4 */

	.byte		1	/* DW_LNS_copy */

	.byte		1	/* DW_LNS_copy (second time as an end-of-prologue marker) */

	.byte		0	/* DW_LNE_set_address */
	.uleb128	5
	.byte		2
	.4byte		.Lend_func_cu1

	.byte		0	/* DW_LNE_end_of_sequence */
	.uleb128	1
	.byte		1

.Lline1_end: