old-cross-binutils/gdb/testsuite/gdb.dwarf2/fission-reread.S
Doug Evans 42e7ad6c73 * dwarf2read.c (signatured_type): Make "per_cu" member first.
(init_cutu_and_read_dies): Handle rereading a DWO CU while it's
	currently being read.  Propagate DW_AT_comp_dir to DWO DIE.

	testsuite/
	* gdb.dwarf2/fission-reread.S: New file.
	* gdb.dwarf2/fission-reread.exp: New file.
2012-07-01 02:05:13 +00:00

459 lines
13 KiB
ArmAsm

/* Copyright 2012 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.
*/
.file "fission-reread.cc"
.globl baz
.bss
.align 4
.type baz, @object
.size baz, 4
baz:
.zero 4
.text
.Ltext0:
.globl main
.type main, @function
main:
.LFB0:
.file 1 "fission-reread.cc"
.loc 1 11 0
.4byte 0
.LFE0:
.size main, .-main
.Letext0:
.section .debug_types.dwo,"G",@progbits,wt.198b7eaccef12290,comdat
.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 0x8 # 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 # 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 # 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,"G",@progbits,wt.198b7eaccef12290,comdat
.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 0x8 # 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/gdb.dwarf2\0" # DW_AT_comp_dir
# Normally dwo_name would be "fission-reread.dwo".
# Simplification: Leave the DWO contents in the executable.
.ascii "fission-reread\0" # 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,"",@progbits
.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 0x8 # 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 "fission-reread.cc\0" # DW_AT_name
.ascii "/tmp/src/gdb/testsuite/gdb.dwarf2\0" # DW_AT_comp_dir
.byte 0 # DW_AT_GNU_dwo_id
.byte 0
.byte 0
.byte 0
.byte 0
.byte 0
.byte 0
.byte 0
.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 # DW_AT_type
.uleb128 0 # DW_AT_low_pc
.8byte .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,"",@progbits
.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 0x8 # Pointer Size (in bytes)
.uleb128 0x1 # (DIE (0) DW_TAG_compile_unit)
.8byte .Ltext0 # DW_AT_low_pc
.8byte .Letext0-.Ltext0 # DW_AT_high_pc
.4byte .Ldebug_line0 # DW_AT_stmt_list
.ascii "/tmp/src/gdb/testsuite/gdb.dwarf2\0" # DW_AT_comp_dir
# Normally dwo_name would be "fission-reread.dwo".
# Simplification: Leave the DWO contents in the executable.
.ascii "fission-reread\0" # 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 0 # DW_AT_GNU_dwo_id
.byte 0
.byte 0
.byte 0
.byte 0
.byte 0
.byte 0
.byte 0
.Lcu_end:
.section .debug_abbrev,"",@progbits
.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 0x7 # (DW_FORM_data8)
.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,"",@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 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 0x7 # (DW_FORM_data8)
.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,"",@progbits
.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,"",@progbits
.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,"",@progbits
.4byte 0x2c # Length of Address Ranges Info
.2byte 0x2 # DWARF Version
.4byte .Lskeleton_debug_info0 # Offset of Compilation Unit Info
.byte 0x8 # Size of Address
.byte 0 # Size of Segment Descriptor
.2byte 0 # Pad to 16 byte boundary
.2byte 0
.8byte .Ltext0 # Address
.8byte .Letext0-.Ltext0 # Length
.8byte 0
.8byte 0
.section .debug_line,"",@progbits
.Ldebug_line0:
.section .debug_line.dwo,"",@progbits
.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,"",@progbits
.Ldebug_addr0:
.8byte .LFB0 # DW_AT_low_pc
.8byte baz # DW_AT_location
.section .note.GNU-stack,"",@progbits