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|
/* Copyright 2012-2021 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/>. */
/* Testcase to exercise the code path in bug 13961 for Fission.
http://gcc.gnu.org/wiki/DebugFission
Compiled from:
class foo
{
public:
int bar;
};
foo baz;
int
main ()
{
return 0;
}
And then manually edited to insert the necessary DW_AT_specification
entries to trigger the desired code path.
There's no real need to make this architecture-specific, so it has been
further hand-edited to support that.
*/
#define CONCAT1(a, b) CONCAT2(a, b)
#define CONCAT2(a, b) a ## b
#ifdef SYMBOL_PREFIX
# define SYMBOL(str) CONCAT1(SYMBOL_PREFIX, str)
#else
# define SYMBOL(str) str
#endif
#define XSTR(s) STR(s)
#define STR(s) #s
.file "fission-reread.cc"
.globl SYMBOL(baz)
.data /* Previously this used .bss, but it's not portable. */
.align 4
.type SYMBOL(baz), %object
.size SYMBOL(baz), 4
SYMBOL(baz):
.zero 4
.text
.Ltext0:
.globl SYMBOL(main)
.type SYMBOL(main), %function
SYMBOL(main):
.LFB0:
.file 1 "fission-reread.cc"
.loc 1 11 0
.4byte 0
.LFE0:
.size SYMBOL(main), .-SYMBOL(main)
.Letext0:
.section .debug_types.dwo
.Ltu_start_dwo:
.4byte .Ltu_end_dwo - .Ltu_start_dwo - 4 /* Length of Compilation Unit Info */
.2byte 0x4 /* DWARF version number */
.4byte .Ldebug_abbrev0 /* Offset Into Abbrev. Section */
.byte 0x4 /* Pointer Size (in bytes) */
.byte 0x19 /* Type Signature */
.byte 0x8b
.byte 0x7e
.byte 0xac
.byte 0xce
.byte 0xf1
.byte 0x22
.byte 0x90
.4byte .Ltu_class_type - .Ltu_start_dwo /* Offset to Type DIE */
.uleb128 0x1 /* (DIE (0x17) DW_TAG_type_unit) */
.byte 0x4 /* DW_AT_language */
.byte 0x73 /* DW_AT_GNU_odr_signature */
.byte 0xea
.byte 0x85
.byte 0x23
.byte 0x75
.byte 0x8a
.byte 0x7e
.byte 0x87
.4byte .Lskeleton_debug_line0 /* DW_AT_stmt_list */
/* Manually inserted to have a DW_AT_specification refering to
something and appearing ahead of it. */
.uleb128 0x8 /* DW_TAG_class_type */
.4byte .Ltu_class_type - .Ltu_start_dwo
/* End of manual insertion */
.Ltu_class_type:
.uleb128 0x2 /* (DIE (0x25) DW_TAG_class_type) */
.ascii "foo\0" /* DW_AT_name */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x1 /* DW_AT_decl_file (fission-reread.cc) */
.byte 0x1 /* DW_AT_decl_line */
.4byte .Ltu_int - .Ltu_start_dwo /* DW_AT_sibling */
.uleb128 0x3 /* (DIE (0x31) DW_TAG_member) */
.ascii "bar\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (fission-reread.cc) */
.byte 0x4 /* DW_AT_decl_line */
.4byte .Ltu_int - .Ltu_start_dwo /* DW_AT_type */
.byte 0 /* DW_AT_data_member_location */
.byte 0x1 /* DW_AT_accessibility */
.byte 0 /* end of children of DIE 0x25 */
.Ltu_int:
.uleb128 0x4 /* (DIE (0x3f) DW_TAG_base_type) */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x5 /* DW_AT_encoding */
.ascii "int\0" /* DW_AT_name */
.byte 0 /* end of children of DIE 0x17 */
.Ltu_end_dwo:
.section .debug_types
.Ltu_start:
.4byte .Ltu_end - .Ltu_start - 4 /* Length of Type Unit Info */
.2byte 0x4 /* DWARF version number */
.4byte .Lskeleton_debug_abbrev0 /* Offset Into Abbrev. Section */
.byte 0x4 /* Pointer Size (in bytes) */
.byte 0x19 /* Type Signature */
.byte 0x8b
.byte 0x7e
.byte 0xac
.byte 0xce
.byte 0xf1
.byte 0x22
.byte 0x90
.4byte 0 /* Offset to Type DIE */
.uleb128 0x2 /* (DIE (0) DW_TAG_type_unit) */
.ascii "/tmp/src/gdb/testsuite\0" /* DW_AT_comp_dir */
.asciz XSTR(DWO) /* DW_AT_GNU_dwo_name */
.4byte .Ldebug_pubnames0 /* DW_AT_GNU_pubnames */
.4byte .Ldebug_pubtypes0 /* DW_AT_GNU_pubtypes */
.4byte .Ldebug_addr0 /* DW_AT_GNU_addr_base */
.Ltu_end:
.section .debug_info.dwo
.Lcu_start_dwo:
.4byte .Lcu_end_dwo - .Lcu_start_dwo - 4 /* Length of Compilation Unit Info */
.2byte 0x4 /* DWARF version number */
.4byte .Ldebug_abbrev0 /* Offset Into Abbrev. Section */
.byte 0x4 /* Pointer Size (in bytes) */
.uleb128 0x5 /* (DIE (0xb) DW_TAG_compile_unit) */
.ascii "GNU C++ 4.6.x-fission\0" /* DW_AT_producer */
.byte 0x4 /* DW_AT_language */
.ascii "gdb.dwarf2/fission-reread.cc\0" /* DW_AT_name */
.ascii "/tmp/src/gdb/testsuite\0" /* DW_AT_comp_dir */
.byte 1 /* DW_AT_GNU_dwo_id */
.byte 2
.byte 3
.byte 4
.byte 5
.byte 6
.byte 7
.byte 8
.Lcu_int:
.uleb128 0x4 /* (DIE (0x7f) DW_TAG_base_type) */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x5 /* DW_AT_encoding */
.ascii "int\0" /* DW_AT_name */
.uleb128 0x6 /* (DIE (0x86) DW_TAG_subprogram) */
/* DW_AT_external */
.ascii "main\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (fission-reread.cc) */
.byte 0xa /* DW_AT_decl_line */
.4byte .Lcu_int - .Lcu_start_dwo /* DW_AT_type */
.uleb128 0 /* DW_AT_low_pc */
.4byte .LFE0-.LFB0 /* DW_AT_high_pc */
.uleb128 0x1 /* DW_AT_frame_base */
.byte 0x9c /* DW_OP_call_frame_cfa */
.uleb128 0x7 /* (DIE (0x9d) DW_TAG_variable) */
.ascii "baz\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (fission-reread.cc) */
.byte 0x7 /* DW_AT_decl_line */
.byte 0x19 /* DW_AT_type */
.byte 0x8b
.byte 0x7e
.byte 0xac
.byte 0xce
.byte 0xf1
.byte 0x22
.byte 0x90
/* DW_AT_external */
.uleb128 0x2 /* DW_AT_location */
.byte 0xfb /* DW_OP_GNU_addr_index */
.uleb128 0x1 /* (index into .debug_addr) */
.byte 0 /* end of children of DIE 0xb */
.Lcu_end_dwo:
.section .debug_info
.Lskeleton_debug_info0:
.Lcu_start:
.4byte .Lcu_end - .Lcu_start - 4 /* Length of Compilation Unit Info */
.2byte 0x4 /* DWARF version number */
.4byte .Lskeleton_debug_abbrev0 /* Offset Into Abbrev. Section */
.byte 0x4 /* Pointer Size (in bytes) */
.uleb128 0x1 /* (DIE (0) DW_TAG_compile_unit) */
.4byte .Ltext0 /* DW_AT_low_pc */
.4byte .Letext0-.Ltext0 /* DW_AT_high_pc */
.4byte .Ldebug_line0 /* DW_AT_stmt_list */
.ascii "/tmp/src/gdb/testsuite\0" /* DW_AT_comp_dir */
.asciz XSTR(DWO) /* DW_AT_GNU_dwo_name */
.4byte .Ldebug_pubnames0 /* DW_AT_GNU_pubnames */
.4byte .Ldebug_pubtypes0 /* DW_AT_GNU_pubtypes */
.4byte .Ldebug_addr0 /* DW_AT_GNU_addr_base */
.byte 1 /* DW_AT_GNU_dwo_id */
.byte 2
.byte 3
.byte 4
.byte 5
.byte 6
.byte 7
.byte 8
.Lcu_end:
.section .debug_abbrev
.Lskeleton_debug_abbrev0:
.uleb128 0x1 /* (abbrev code) */
.uleb128 0x11 /* (TAG: DW_TAG_compile_unit) */
.byte 0 /* DW_children_no */
.uleb128 0x11 /* (DW_AT_low_pc) */
.uleb128 0x1 /* (DW_FORM_addr) */
.uleb128 0x12 /* (DW_AT_high_pc) */
.uleb128 0x6 /* (DW_FORM_data4) */
.uleb128 0x10 /* (DW_AT_stmt_list) */
.uleb128 0x17 /* (DW_FORM_sec_offset) */
.uleb128 0x1b /* (DW_AT_comp_dir) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x2130 /* (DW_AT_GNU_dwo_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x2134 /* (DW_AT_GNU_pubnames) */
.uleb128 0x17 /* (DW_FORM_sec_offset) */
.uleb128 0x2135 /* (DW_AT_GNU_pubtypes) */
.uleb128 0x17 /* (DW_FORM_sec_offset) */
.uleb128 0x2133 /* (DW_AT_GNU_addr_base) */
.uleb128 0x17 /* (DW_FORM_sec_offset) */
.uleb128 0x2131 /* (DW_AT_GNU_dwo_id) */
.uleb128 0x7 /* (DW_FORM_data8) */
.byte 0
.byte 0
.uleb128 0x2 /* (abbrev code) */
.uleb128 0x41 /* (TAG: DW_TAG_type_unit) */
.byte 0 /* DW_children_no */
.uleb128 0x1b /* (DW_AT_comp_dir) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x2130 /* (DW_AT_GNU_dwo_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x2134 /* (DW_AT_GNU_pubnames) */
.uleb128 0x17 /* (DW_FORM_sec_offset) */
.uleb128 0x2135 /* (DW_AT_GNU_pubtypes) */
.uleb128 0x17 /* (DW_FORM_sec_offset) */
.uleb128 0x2133 /* (DW_AT_GNU_addr_base) */
.uleb128 0x17 /* (DW_FORM_sec_offset) */
.byte 0
.byte 0
.byte 0 /* end of skeleton .debug_abbrev */
.section .debug_abbrev.dwo
.Ldebug_abbrev0:
.uleb128 0x1 /* (abbrev code) */
.uleb128 0x41 /* (TAG: DW_TAG_type_unit) */
.byte 0x1 /* DW_children_yes */
.uleb128 0x13 /* (DW_AT_language) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x210f /* (DW_AT_GNU_odr_signature) */
.uleb128 0x7 /* (DW_FORM_data8) */
.uleb128 0x10 /* (DW_AT_stmt_list) */
.uleb128 0x17 /* (DW_FORM_sec_offset) */
.byte 0
.byte 0
.uleb128 0x2 /* (abbrev code) */
.uleb128 0x2 /* (TAG: DW_TAG_class_type) */
.byte 0x1 /* DW_children_yes */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0xb /* (DW_AT_byte_size) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x1 /* (DW_AT_sibling) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.byte 0
.byte 0
.uleb128 0x3 /* (abbrev code) */
.uleb128 0xd /* (TAG: DW_TAG_member) */
.byte 0 /* DW_children_no */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x38 /* (DW_AT_data_member_location) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x32 /* (DW_AT_accessibility) */
.uleb128 0xb /* (DW_FORM_data1) */
.byte 0
.byte 0
.uleb128 0x4 /* (abbrev code) */
.uleb128 0x24 /* (TAG: DW_TAG_base_type) */
.byte 0 /* DW_children_no */
.uleb128 0xb /* (DW_AT_byte_size) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3e /* (DW_AT_encoding) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.byte 0
.byte 0
.uleb128 0x5 /* (abbrev code) */
.uleb128 0x11 /* (TAG: DW_TAG_compile_unit) */
.byte 0x1 /* DW_children_yes */
.uleb128 0x25 /* (DW_AT_producer) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x13 /* (DW_AT_language) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x1b /* (DW_AT_comp_dir) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x2131 /* (DW_AT_GNU_dwo_id) */
.uleb128 0x7 /* (DW_FORM_data8) */
.byte 0
.byte 0
.uleb128 0x6 /* (abbrev code) */
.uleb128 0x2e /* (TAG: DW_TAG_subprogram) */
.byte 0 /* DW_children_no */
.uleb128 0x3f /* (DW_AT_external) */
.uleb128 0x19 /* (DW_FORM_flag_present) */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x11 /* (DW_AT_low_pc) */
.uleb128 0x1f01 /* (DW_FORM_GNU_addr_index) */
.uleb128 0x12 /* (DW_AT_high_pc) */
.uleb128 0x6 /* (DW_FORM_data4) */
.uleb128 0x40 /* (DW_AT_frame_base) */
.uleb128 0x18 /* (DW_FORM_exprloc) */
.byte 0
.byte 0
.uleb128 0x7 /* (abbrev code) */
.uleb128 0x34 /* (TAG: DW_TAG_variable) */
.byte 0 /* DW_children_no */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x20 /* (DW_FORM_ref_sig8) */
.uleb128 0x3f /* (DW_AT_external) */
.uleb128 0x19 /* (DW_FORM_flag_present) */
.uleb128 0x2 /* (DW_AT_location) */
.uleb128 0x18 /* (DW_FORM_exprloc) */
.byte 0
.byte 0
/* Manually inserted. */
.uleb128 0x8 /* abbrev code */
.uleb128 0x2 /* DW_TAG_class_type */
.byte 0x0 /* DW_has_children_no */
.uleb128 0x47 /* DW_AT_specification */
.uleb128 0x13 /* DW_FORM_ref4 */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
/* End of manual insertion. */
.byte 0
.section .debug_pubnames
.Ldebug_pubnames0:
.4byte 0x1f /* Length of Public Names Info */
.2byte 0x2 /* DWARF Version */
.4byte .Lskeleton_debug_info0 /* Offset of Compilation Unit Info */
.4byte 0xb0 /* Compilation Unit Length */
.4byte 0x86 /* DIE offset */
.ascii "main\0" /* external name */
.4byte 0x9d /* DIE offset */
.ascii "baz\0" /* external name */
.4byte 0
.section .debug_pubtypes
.Ldebug_pubtypes0:
.4byte 0x1e /* Length of Public Type Names Info */
.2byte 0x2 /* DWARF Version */
.4byte .Lskeleton_debug_info0 /* Offset of Compilation Unit Info */
.4byte 0xb0 /* Compilation Unit Length */
.4byte 0x7f /* DIE offset */
.ascii "int\0" /* external name */
.4byte 0x25 /* DIE offset */
.ascii "foo\0" /* external name */
.4byte 0
.section .debug_aranges
.4byte 0x1c /* Length of Address Ranges Info */
.2byte 0x2 /* DWARF Version */
.4byte .Lskeleton_debug_info0 /* Offset of Compilation Unit Info */
.byte 0x4 /* Size of Address */
.byte 0 /* Size of Segment Descriptor */
.2byte 0 /* Pad to 16 byte boundary */
.2byte 0
.4byte .Ltext0 /* Address */
.4byte .Letext0-.Ltext0 /* Length */
.4byte 0
.4byte 0
.section .debug_line
.Ldebug_line0:
.section .debug_line.dwo
.Lskeleton_debug_line0:
.4byte .LELT0-.LSLT0 /* Length of Source Line Info */
.LSLT0:
.2byte 0x4 /* DWARF Version */
.4byte .LELTP0-.LASLTP0 /* Prolog Length */
.LASLTP0:
.byte 0x1 /* Minimum Instruction Length */
.byte 0x1 /* Maximum Operations Per Instruction */
.byte 0x1 /* Default is_stmt_start flag */
.byte 0xf6 /* Line Base Value (Special Opcodes) */
.byte 0xf5 /* Line Range Value (Special Opcodes) */
.byte 0xa /* Special Opcode Base */
.byte 0 /* opcode: 0x1 has 0 args */
.byte 0x1 /* opcode: 0x2 has 1 args */
.byte 0x1 /* opcode: 0x3 has 1 args */
.byte 0x1 /* opcode: 0x4 has 1 args */
.byte 0x1 /* opcode: 0x5 has 1 args */
.byte 0 /* opcode: 0x6 has 0 args */
.byte 0 /* opcode: 0x7 has 0 args */
.byte 0 /* opcode: 0x8 has 0 args */
.byte 0x1 /* opcode: 0x9 has 1 args */
.byte 0 /* End directory table */
.ascii "fission-reread.cc\0" /* File Entry: 0x1 */
.uleb128 0
.uleb128 0
.uleb128 0
.byte 0 /* End file name table */
.LELTP0:
.LELT0:
.section .debug_addr
.Ldebug_addr0:
.4byte .LFB0 /* DW_AT_low_pc */
.4byte SYMBOL(baz) /* DW_AT_location */
|
