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binutils-gdb/gdb/testsuite/gdb.dwarf2/pr13961.S
Alok Kumar Sharma 7d2e5095c6 Correction of gdb.dwarf2/pr13961.S 
Please consider output of objdump for the executable generated from pr13961.S
-------------
Contents of the .debug_info section:
...
 <1><62>: Abbrev Number: 2 (DW_TAG_class_type)
    <63>   DW_AT_name        : foo2
    <68>   DW_AT_byte_size   : 4
    <69>   DW_AT_decl_file   : 1
    <6a>   DW_AT_decl_line   : 1
    <6b>   DW_AT_sibling     : <0x3f> !!! There is no DIE <0x3f>
...
Contents of the .debug_types section:
...
 <1><25>: Abbrev Number: 8 (DW_TAG_class_type) !! Hand-inserted of size=5
    <26>   DW_AT_specification: <0x2a>
 <1><2a>: Abbrev Number: 2 (DW_TAG_class_type)
    <2b>   DW_AT_name        : foo
    <2f>   DW_AT_byte_size   : 4
    <30>   DW_AT_decl_file   : 1
    <31>   DW_AT_decl_line   : 1
    <32>   DW_AT_sibling     : <0x3f> !!! There is no DIE <0x3f>, should be <44>
 <2><36>: Abbrev Number: 3 (DW_TAG_member)
    <37>   DW_AT_name        : bar
    <3b>   DW_AT_decl_file   : 1
    <3c>   DW_AT_decl_line   : 4
    <3d>   DW_AT_type        : <0x3f> !!! There is no DIE <0x3f>
    <41>   DW_AT_data_member_location: 0
    <42>   DW_AT_accessibility: 1       (public)
 <2><43>: Abbrev Number: 0
 <1><44>: Abbrev Number: 4 (DW_TAG_base_type)
    <45>   DW_AT_byte_size   : 4
    <46>   DW_AT_encoding    : 5        (signed)
    <47>   DW_AT_name        : int
...
---------------
The original assembly is generated from a source file and then
modified to insert DIE, with that the subsequent DIE references
should have been updated, which were not.
It is now getting updated to replace hardcoded DIE references with
label-calculated references.

gdb/testsuite/ChangeLog:

2021-02-16  Alok Kumar Sharma  <AlokKumar.Sharma@amd.com>

	* gdb.dwarf2/pr13961.S: Corrected invalide DIE references.
2021-02-16 22:26:43 +05:30

380 lines
11 KiB
ArmAsm
Raw Blame History

/* 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.
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
.file "pr13961.cc"
.globl baz
.data /* Previously this used .bss, but it's not portable. */
.align 4
.type baz, %object
.size baz, 4
baz:
#if 0
/* This is disabled because when it was accidentally left out it
caused a segv when used with .gdb_index. */
.file 1 "foo.c"
.loc 1 12 0
#endif
.zero 4
.text
.Ltext0:
.globl SYMBOL(main)
.type SYMBOL(main), %function
SYMBOL(main):
.LFB0:
.4byte 0
.LFE0:
.size SYMBOL(main), .-SYMBOL(main)
.Letext0:
.section .debug_types,"",%progbits
.Ldebug_types0:
.4byte .Ltu_end - .Ltu_start /* Length of Compilation Unit Info */
.Ltu_start:
.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 - .Ldebug_types0 /* Offset to Type DIE */
.uleb128 0x1 /* 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 .Ldebug_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 - .Ldebug_types0
/* End of manual insertion */
.Ltu_class_type:
.uleb128 0x2 /* (DW_TAG_class_type) */
.ascii "foo\0" /* DW_AT_name */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x1 /* DW_AT_decl_file (pr13961.cc) */
.byte 0x1 /* DW_AT_decl_line */
.4byte .Ltu_base_type - .Ldebug_types0 /* DW_AT_sibling */
.uleb128 0x3 /* (DW_TAG_member) */
.ascii "bar\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (pr13961.cc) */
.byte 0x4 /* DW_AT_decl_line */
.4byte .Ltu_base_type - .Ldebug_types0 /* DW_AT_type */
.byte 0 /* DW_AT_data_member_location */
.byte 0x1 /* DW_AT_accessibility */
.byte 0 /* end of children */
.Ltu_base_type:
.uleb128 0x4 /* 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 */
.Ltu_end:
.section .debug_info,"",%progbits
.Ldebug_info0:
.4byte .Lcu_end - .Lcu_start /* Length of Compilation Unit Info */
.Lcu_start:
.2byte 0x4 /* DWARF version number */
.4byte .Ldebug_abbrev0 /* Offset Into Abbrev. Section */
.byte 0x4 /* Pointer Size (in bytes) */
.uleb128 0x5 /* (DW_TAG_compile_unit) */
.4byte .LASF0 /* DW_AT_producer: "GNU C++ 4.6.3 20120306" */
.byte 0x4 /* DW_AT_language */
.4byte .LASF1 /* DW_AT_name: "pr13961.cc" */
.4byte .LASF2 /* DW_AT_comp_dir: "." */
.4byte .Ltext0 /* DW_AT_low_pc */
.4byte .Letext0 /* DW_AT_high_pc */
.4byte .Ldebug_line0 /* DW_AT_stmt_list */
.Lint_base_type:
.uleb128 0x4 /* DW_TAG_base_type */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x5 /* DW_AT_encoding */
.ascii "int\0" /* DW_AT_name */
.uleb128 0x6 /* DW_TAG_subprogram */
/* DW_AT_external */
.4byte .LASF3 /* DW_AT_name: "main" */
.byte 0x1 /* DW_AT_decl_file (pr13961.cc) */
.byte 0xa /* DW_AT_decl_line */
.4byte .Lint_base_type - .Ldebug_info0 /* DW_AT_type */
.4byte .LFB0 /* DW_AT_low_pc */
.4byte .LFE0 /* DW_AT_high_pc */
.uleb128 0x1 /* DW_AT_frame_base */
.byte 0x9c /* DW_OP_call_frame_cfa */
/* DW_AT_GNU_all_call_sites */
.uleb128 0x7 /* DW_TAG_variable */
.ascii "baz\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (pr13961.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 0x5 /* DW_AT_location */
.byte 0x3 /* DW_OP_addr */
.4byte baz
/* Manually inserted to have a DW_AT_specification refering to
something and appearing ahead of it. */
.uleb128 0x8 /* DW_TAG_class_type */
.4byte .Lcu_class_type - .Ldebug_info0 /* DW_AT_specification */
.Lcu_int_type:
.uleb128 0x4 /* DW_TAG_base_type */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x5 /* DW_AT_encoding */
.ascii "int\0" /* DW_AT_name */
.Lcu_class_type:
.uleb128 0x2 /* DW_TAG_class_type */
.ascii "foo2\0" /* DW_AT_name */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x1 /* DW_AT_decl_file (pr13961.cc) */
.byte 0x1 /* DW_AT_decl_line */
.4byte .Lcu_second_int_type - .Ldebug_info0 /* DW_AT_sibling */
.uleb128 0x3 /* DW_TAG_member */
.ascii "bar\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (pr13961.cc) */
.byte 0x4 /* DW_AT_decl_line */
.4byte .Lcu_second_int_type - .Ldebug_info0 /* DW_AT_type */
.byte 0 /* DW_AT_data_member_location */
.byte 0x1 /* DW_AT_accessibility */
.byte 0 /* end of children */
.Lcu_second_int_type:
.uleb128 0x4 /* DW_TAG_base_type */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x5 /* DW_AT_encoding */
.ascii "int\0" /* DW_AT_name */
/* End of manual insertion */
.byte 0 /* end of children */
.Lcu_end:
.section .debug_abbrev,"",%progbits
.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 0xe /* (DW_FORM_strp) */
.uleb128 0x13 /* (DW_AT_language) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0xe /* (DW_FORM_strp) */
.uleb128 0x1b /* (DW_AT_comp_dir) */
.uleb128 0xe /* (DW_FORM_strp) */
.uleb128 0x11 /* (DW_AT_low_pc) */
.uleb128 0x1 /* (DW_FORM_addr) */
.uleb128 0x12 /* (DW_AT_high_pc) */
.uleb128 0x1 /* (DW_FORM_addr) */
.uleb128 0x10 /* (DW_AT_stmt_list) */
.uleb128 0x17 /* (DW_FORM_sec_offset) */
.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 0xe /* (DW_FORM_strp) */
.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 0x1 /* (DW_FORM_addr) */
.uleb128 0x12 /* (DW_AT_high_pc) */
.uleb128 0x1 /* (DW_FORM_addr) */
.uleb128 0x40 /* (DW_AT_frame_base) */
.uleb128 0x18 /* (DW_FORM_exprloc) */
.uleb128 0x2117 /* (DW_AT_GNU_all_call_sites) */
.uleb128 0x19 /* (DW_FORM_flag_present) */
.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_aranges,"",%progbits
.4byte 0x1c /* Length of Address Ranges Info */
.2byte 0x2 /* DWARF Version */
.4byte .Ldebug_info0 /* Offset of Compilation Unit Info */
.byte 0x4 /* Size of Address */
.byte 0 /* Size of Segment Descriptor */
.2byte 0 /* Pad to 8 byte boundary */
.2byte 0
.4byte .Ltext0 /* Address */
.4byte .Letext0-.Ltext0 /* Length */
.4byte 0
.4byte 0
.section .debug_line,"",%progbits
.Ldebug_line0:
.section .debug_str,"MS",%progbits,1
.LASF0:
.string "GNU C++ 4.6.3 20120306"
.LASF2:
.string "."
.LASF1:
.string "pr13961.cc"
.LASF3:
.string "main"
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