[commit] Add DW_AT_GNU_ranges_base
Doug Evans
dje@google.com
Thu Jun 28 01:16:00 GMT 2012
Hi.
fyi, I committed this.
Regression tested on amd64-linux.
2012-06-27 Doug Evans <dje@google.com>
* dwarf2read.c (dwarf2_cu): Add ranges_base.
Delete have_addr_base, unused. All uses updated.
(init_cutu_and_read_dies): Process DW_AT_GNU_ranges_base.
(dwarf2_get_pc_bounds): Add ranges_base.
(dwarf2_record_block_ranges): Ditto.
testsuite/
* gdb.dwarf2/fission-base.c: New file.
* gdb.dwarf2/fission-base.S: New file.
* gdb.dwarf2/fission-base.exp: New file.
Index: dwarf2read.c
===================================================================
RCS file: /cvs/src/src/gdb/dwarf2read.c,v
retrieving revision 1.671
diff -u -p -r1.671 dwarf2read.c
--- dwarf2read.c 27 Jun 2012 14:26:09 -0000 1.671
+++ dwarf2read.c 28 Jun 2012 01:00:32 -0000
@@ -459,6 +459,13 @@ struct dwarf2_cu
Note this value comes from the stub CU/TU's DIE. */
ULONGEST addr_base;
+ /* The DW_AT_ranges_base attribute if present, zero otherwise
+ (zero is a valid value though).
+ Note this value comes from the stub CU/TU's DIE.
+ Also note that the value is zero in the non-DWO case so this value can
+ be used without needing to know whether DWO files are in use or not. */
+ ULONGEST ranges_base;
+
/* Mark used when releasing cached dies. */
unsigned int mark : 1;
@@ -475,10 +482,6 @@ struct dwarf2_cu
unsigned int checked_producer : 1;
unsigned int producer_is_gxx_lt_4_6 : 1;
unsigned int producer_is_icc : 1;
-
- /* Non-zero if DW_AT_addr_base was found.
- Used when processing DWO files. */
- unsigned int have_addr_base : 1;
};
/* Persistent data held for a compilation unit, even when not
@@ -3996,13 +3999,16 @@ init_cutu_and_read_dies (struct dwarf2_p
/* There should be a DW_AT_addr_base attribute here (if needed).
We need the value before we can process DW_FORM_GNU_addr_index. */
cu->addr_base = 0;
- cu->have_addr_base = 0;
attr = dwarf2_attr (comp_unit_die, DW_AT_GNU_addr_base, cu);
if (attr)
- {
- cu->addr_base = DW_UNSND (attr);
- cu->have_addr_base = 1;
- }
+ cu->addr_base = DW_UNSND (attr);
+
+ /* There should be a DW_AT_ranges_base attribute here (if needed).
+ We need the value before we can process DW_AT_ranges. */
+ cu->ranges_base = 0;
+ attr = dwarf2_attr (comp_unit_die, DW_AT_GNU_ranges_base, cu);
+ if (attr)
+ cu->ranges_base = DW_UNSND (attr);
if (this_cu->is_debug_types)
{
@@ -8249,9 +8255,11 @@ dwarf2_get_pc_bounds (struct die_info *d
attr = dwarf2_attr (die, DW_AT_ranges, cu);
if (attr != NULL)
{
+ unsigned int ranges_offset = DW_UNSND (attr) + cu->ranges_base;
+
/* Value of the DW_AT_ranges attribute is the offset in the
.debug_ranges section. */
- if (!dwarf2_ranges_read (DW_UNSND (attr), &low, &high, cu, pst))
+ if (!dwarf2_ranges_read (ranges_offset, &low, &high, cu, pst))
return 0;
/* Found discontinuous range of addresses. */
ret = -1;
@@ -8411,7 +8419,7 @@ dwarf2_record_block_ranges (struct die_i
/* The value of the DW_AT_ranges attribute is the offset of the
address range list in the .debug_ranges section. */
- unsigned long offset = DW_UNSND (attr);
+ unsigned long offset = DW_UNSND (attr) + cu->ranges_base;
gdb_byte *buffer = dwarf2_per_objfile->ranges.buffer + offset;
/* For some target architectures, but not others, the
Index: testsuite/gdb.dwarf2/fission-base.S
===================================================================
RCS file: testsuite/gdb.dwarf2/fission-base.S
diff -N testsuite/gdb.dwarf2/fission-base.S
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ testsuite/gdb.dwarf2/fission-base.S 28 Jun 2012 01:00:33 -0000
@@ -0,0 +1,364 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ 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/>.
+
+ This file was created by doing:
+ gcc -gdwarf-4 -gsplit-debug -S -dA fission-base.c
+ and then massaging the output.
+*/
+
+ .file "fission-base.c"
+
+ .text
+.Ltext0:
+
+ .globl func
+ .type func, @function
+func:
+.LFB0:
+ .file 1 "fission-base.c"
+ # fission-base.c:20
+ .loc 1 20 0
+ .cfi_startproc
+ pushq %rbp #
+ .cfi_def_cfa_offset 16
+ .cfi_offset 6, -16
+ movq %rsp, %rbp #,
+ .cfi_def_cfa_register 6
+ movl %edi, -4(%rbp) # arg, arg
+ # fission-base.c:21
+ .loc 1 21 0
+ movl -4(%rbp), %eax # arg, tmp61
+ addl $1, %eax #, D.1617
+ # fission-base.c:22
+ .loc 1 22 0
+ popq %rbp #
+ .cfi_def_cfa 7, 8
+ ret
+ .cfi_endproc
+.LFE0:
+ .size func, .-func
+ .globl main
+ .type main, @function
+main:
+.LFB1:
+ # fission-base.c:26
+ .loc 1 26 0
+ .cfi_startproc
+ pushq %rbp #
+ .cfi_def_cfa_offset 16
+ .cfi_offset 6, -16
+ movq %rsp, %rbp #,
+ .cfi_def_cfa_register 6
+ # fission-base.c:27
+ .loc 1 27 0
+ movl $-1, %edi #,
+ call func #
+ # fission-base.c:28
+ .loc 1 28 0
+ popq %rbp #
+ .cfi_def_cfa 7, 8
+ ret
+ .cfi_endproc
+.LFE1:
+ .size main, .-main
+.Letext0:
+ .section .debug_info.dwo,"",@progbits
+.Ldebug_info0:
+ .4byte .Ldebug_info0_end - .Ldebug_info0 - 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 0x1 # (DIE (0xb) DW_TAG_compile_unit)
+ .ascii "GNU C 4.6.x-fission\0" # DW_AT_producer
+ .byte 0x1 # DW_AT_language
+ .ascii "fission-base.c\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
+ .uleb128 0x2 # (DIE (0x89) DW_TAG_subprogram)
+ # DW_AT_external
+ .ascii "func\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (fission-base.c)
+ .byte 0x13 # DW_AT_decl_line
+ # DW_AT_prototyped
+ .4byte .Ldebug_info0_int # DW_AT_type
+ .4byte 0x0 # DW_AT_ranges
+ .uleb128 0x1 # DW_AT_frame_base
+ .byte 0x9c # DW_OP_call_frame_cfa
+ .4byte .Ldebug_info0_int # DW_AT_sibling
+ .uleb128 0x3 # (DIE (0xa4) DW_TAG_formal_parameter)
+ .ascii "arg\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (fission-base.c)
+ .byte 0x13 # DW_AT_decl_line
+ .4byte .Ldebug_info0_int # DW_AT_type
+ .uleb128 0x2 # DW_AT_location
+ .byte 0x91 # DW_OP_fbreg
+ .sleb128 -20
+ .byte 0 # end of children of DIE 0x89
+.Ldebug_info0_int:
+ .uleb128 0x4 # (DIE (0xb3) DW_TAG_base_type)
+ .byte 0x4 # DW_AT_byte_size
+ .byte 0x5 # DW_AT_encoding
+ .ascii "int\0" # DW_AT_name
+ .uleb128 0x5 # (DIE (0xba) DW_TAG_subprogram)
+ # DW_AT_external
+ .ascii "main\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (fission-base.c)
+ .byte 0x19 # DW_AT_decl_line
+ .4byte .Ldebug_info0_int # DW_AT_type
+ .uleb128 0x1 # DW_AT_low_pc
+ .8byte .LFE1-.LFB1 # DW_AT_high_pc
+ .uleb128 0x1 # DW_AT_frame_base
+ .byte 0x9c # DW_OP_call_frame_cfa
+ .byte 0 # end of children of DIE 0xb
+.Ldebug_info0_end:
+ .section .debug_info,"",@progbits
+.Lskeleton_debug_info0:
+ .4byte .Lskeleton_debug_info0_end - .Lskeleton_debug_info0 - 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-base.dwo".
+ # Simplification: Leave the DWO contents in the executable.
+ .ascii "fission-base\0" # DW_AT_GNU_dwo_name
+ .4byte .Ldebug_pubnames0 # DW_AT_GNU_pubnames
+ .4byte .Ldebug_pubtypes0 # DW_AT_GNU_pubtypes
+ .4byte .Ldebug_addr0_begin # DW_AT_GNU_addr_base
+ .4byte .Ldebug_ranges0_begin # DW_AT_GNU_ranges_base
+ .byte 0 # DW_AT_GNU_dwo_id
+ .byte 0
+ .byte 0
+ .byte 0
+ .byte 0
+ .byte 0
+ .byte 0
+ .byte 0
+.Lskeleton_debug_info0_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 0x2132 # (DW_AT_GNU_ranges_base)
+ .uleb128 0x17 # (DW_FORM_sec_offset)
+ .uleb128 0x2131 # (DW_AT_GNU_dwo_id)
+ .uleb128 0x7 # (DW_FORM_data8)
+ .byte 0
+ .byte 0
+ .byte 0 # end of skeleton .debug_abbrev
+ .section .debug_abbrev.dwo,"",@progbits
+.Ldebug_abbrev0:
+ .uleb128 0x1 # (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 0x2 # (abbrev code)
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
+ .byte 0x1 # DW_children_yes
+ .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 0x27 # (DW_AT_prototyped)
+ .uleb128 0x19 # (DW_FORM_flag_present)
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .uleb128 0x55 # (DW_AT_ranges)
+ .uleb128 0x17 # (DW_FORM_sec_offset)
+ .uleb128 0x40 # (DW_AT_frame_base)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .uleb128 0x1 # (DW_AT_sibling)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x3 # (abbrev code)
+ .uleb128 0x5 # (TAG: DW_TAG_formal_parameter)
+ .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 0x2 # (DW_AT_location)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .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 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
+ .byte 0
+ .section .debug_pubnames,"",@progbits
+.Ldebug_pubnames0:
+ .4byte 0x20 # Length of Public Names Info
+ .2byte 0x2 # DWARF Version
+ .4byte .Lskeleton_debug_info0 # Offset of Compilation Unit Info
+ .4byte 0xd2 # Compilation Unit Length
+ .4byte 0x89 # DIE offset
+ .ascii "func\0" # external name
+ .4byte 0xba # DIE offset
+ .ascii "main\0" # external name
+ .4byte 0
+ .section .debug_pubtypes,"",@progbits
+.Ldebug_pubtypes0:
+ .4byte 0x16 # Length of Public Type Names Info
+ .2byte 0x2 # DWARF Version
+ .4byte .Lskeleton_debug_info0 # Offset of Compilation Unit Info
+ .4byte 0xd2 # Compilation Unit Length
+ .4byte .Ldebug_info0_int # DIE offset
+ .ascii "int\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-base.c\0" # File Entry: 0x1
+ .uleb128 0
+ .uleb128 0
+ .uleb128 0
+ .byte 0 # End file name table
+.LELTP0:
+.LELT0:
+ .section .debug_addr,"",@progbits
+.Ldebug_addr0:
+ # Shift the real entries down by a non-zero amount to test
+ # DW_AT_GNU_addr_base.
+ .8byte 0,0
+.Ldebug_addr0_begin:
+ .8byte .LFB0 # DW_AT_low_pc
+ .8byte .LFB1 # DW_AT_low_pc
+
+ .section .debug_ranges,"",@progbits
+.Ldebug_ranges0:
+ # Shift the real entries down by a non-zero amount to test
+ # DW_AT_GNU_ranges_base.
+ .8byte 0,0
+.Ldebug_ranges0_begin:
+ # Note: Since the DW_TAG_compile_unit specifies low_pc, that sets
+ # the base address, and thus we have to subtract it here.
+ .8byte .LFB0 - .Ltext0 # Offset 0
+ .8byte .LFE0 - .Ltext0
+ .8byte 0
+ .8byte 0
+
+ .section .note.GNU-stack,"",@progbits
Index: testsuite/gdb.dwarf2/fission-base.c
===================================================================
RCS file: testsuite/gdb.dwarf2/fission-base.c
diff -N testsuite/gdb.dwarf2/fission-base.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ testsuite/gdb.dwarf2/fission-base.c 28 Jun 2012 01:00:33 -0000
@@ -0,0 +1,28 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ 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/>. */
+
+int
+func (int arg)
+{
+ return arg + 1;
+}
+
+int
+main ()
+{
+ return func (-1);
+}
Index: testsuite/gdb.dwarf2/fission-base.exp
===================================================================
RCS file: testsuite/gdb.dwarf2/fission-base.exp
diff -N testsuite/gdb.dwarf2/fission-base.exp
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ testsuite/gdb.dwarf2/fission-base.exp 28 Jun 2012 01:00:33 -0000
@@ -0,0 +1,64 @@
+# 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/>.
+
+load_lib dwarf.exp
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+if ![dwarf2_support] {
+ return 0
+}
+
+# This test can only be run on x86-64 targets.
+if {![istarget x86_64-*] || ![is_lp64_target]} {
+ return 0
+}
+
+set basename "fission-base"
+
+standard_testfile .S
+
+# IWBN to use prepare_for_testing here, but we need to set debug-file-directory
+# before we load the binary.
+
+if { [build_executable "$testfile.exp" "$testfile" "$srcfile" {nodebug}] } {
+ return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+# Set debug-file-directory so we find the dwo file.
+gdb_test_no_output "set debug-file-directory $subdir"
+gdb_load [standard_output_file $testfile]
+
+if ![runto_main] {
+ return -1
+}
+
+# Do a few basic things to verify we're finding the DWO debug info.
+
+gdb_test "ptype main" "type = int \\(\\)"
+gdb_test "ptype func" "type = int \\(int\\)"
+
+gdb_test "frame" "#0 *main \\(\\) at $testfile\\.c:$decimal.*" \
+ "frame in main"
+
+gdb_test "break func" "Breakpoint.*at.* file .*$testfile\\.c, line .*"
+
+gdb_test "continue" "Breakpoint.* func \\(arg=-1\\).*" \
+ "continue to func"
+
+gdb_test "frame" "#0 *func \\(arg=-1\\) at $testfile\\.c:$decimal.*" \
+ "frame in func"
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