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[binutils-gdb] PR symtab/19999 gdb unable to resolve vars with fission+PIE
- From: Doug Evans <devans at sourceware dot org>
- To: gdb-cvs at sourceware dot org
- Date: 12 May 2016 16:24:43 -0000
- Subject: [binutils-gdb] PR symtab/19999 gdb unable to resolve vars with fission+PIE
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=8ddd5a6cd692ca8c4041d9fb64cbb4e0585d4aa1
commit 8ddd5a6cd692ca8c4041d9fb64cbb4e0585d4aa1
Author: Doug Evans <dje@google.com>
Date: Thu May 12 09:20:57 2016 -0700
PR symtab/19999 gdb unable to resolve vars with fission+PIE
gdb/ChangeLog:
* dwarf2loc.c (dwarf2_find_location_expression): For DWO files still
add base_offset.
gdb/testsuite/ChangeLog:
* lib/dwarf.exp (build_executable_from_fission_assembler): Pass
$options when building executable.
* gdb.dwarf2/fission-loclists-pie.c: New file.
* gdb.dwarf2/fission-loclists-pie.exp: New file.
Diff:
---
gdb/ChangeLog | 6 +
gdb/dwarf2loc.c | 12 +-
gdb/testsuite/ChangeLog | 8 +
gdb/testsuite/gdb.dwarf2/fission-loclists-pie.S | 482 ++++++++++++++++++++++
gdb/testsuite/gdb.dwarf2/fission-loclists-pie.exp | 61 +++
gdb/testsuite/lib/dwarf.exp | 2 +-
6 files changed, 567 insertions(+), 4 deletions(-)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9d652d7..0c25d8a 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2016-05-12 Doug Evans <dje@google.com>
+
+ PR symtab/19999
+ * dwarf2loc.c (dwarf2_find_location_expression): For DWO files still
+ add base_offset.
+
2016-05-10 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>
* iq2000-tdep.c (iq2000_scan_prologue): Remove if that shouldn't guard
diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c
index ba6ed42..bfe1173 100644
--- a/gdb/dwarf2loc.c
+++ b/gdb/dwarf2loc.c
@@ -255,9 +255,15 @@ dwarf2_find_location_expression (struct dwarf2_loclist_baton *baton,
}
/* Otherwise, a location expression entry.
- If the entry is from a DWO, don't add base address: the entry is
- from .debug_addr which has absolute addresses. */
- if (! baton->from_dwo)
+ If the entry is from a DWO, don't add base address: the entry is from
+ .debug_addr which already has the DWARF "base address". We still add
+ base_offset in case we're debugging a PIE executable. */
+ if (baton->from_dwo)
+ {
+ low += base_offset;
+ high += base_offset;
+ }
+ else
{
low += base_address;
high += base_address;
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index e1fdd38..04a6450 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,11 @@
+2016-05-12 Doug Evans <dje@google.com>
+
+ PR symtab/19999
+ * lib/dwarf.exp (build_executable_from_fission_assembler): Pass
+ $options when building executable.
+ * gdb.dwarf2/fission-loclists-pie.S: New file.
+ * gdb.dwarf2/fission-loclists-pie.exp: New file.
+
2016-05-04 Simon Marchi <simon.marchi@ericsson.com>
* gdb.base/solib-display.exp: Check for [use_gdb_stub]Â instead
diff --git a/gdb/testsuite/gdb.dwarf2/fission-loclists-pie.S b/gdb/testsuite/gdb.dwarf2/fission-loclists-pie.S
new file mode 100644
index 0000000..0e0c91d
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/fission-loclists-pie.S
@@ -0,0 +1,482 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2013-2016 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 -O1 -gdwarf-4 -gsplit-debug -fPIE -S -dA fission-loclists-pie.c
+ and then massaging the output.
+
+ fission-loclists-pie.c:
+
+ __attribute__((noinline)) int
+ init (int *b)
+ {
+ return 0;
+ }
+
+ int
+ main (int argc, char *argv[])
+ {
+ return init (&argc);
+ }
+*/
+
+ .file "fission-loclists-pie.c"
+ .text
+.Ltext0:
+ .globl init
+ .type init, @function
+init:
+.LFB0:
+ .file 1 "testsuite/gdb.dwarf2/fission-loclists-pie.c"
+ # testsuite/gdb.dwarf2/fission-loclists-pie.c:22
+ .loc 1 22 0
+ .cfi_startproc
+.LVL0:
+# BLOCK 2 freq:10000 seq:0
+# PRED: ENTRY [100.0%] (FALLTHRU)
+ # testsuite/gdb.dwarf2/fission-loclists-pie.c:24
+ .loc 1 24 0
+ movl $0, %eax
+# SUCC: EXIT [100.0%]
+ ret
+ .cfi_endproc
+.LFE0:
+ .size init, .-init
+ .globl main
+ .type main, @function
+main:
+.LFB1:
+ # testsuite/gdb.dwarf2/fission-loclists-pie.c:28
+ .loc 1 28 0
+ .cfi_startproc
+.LVL1:
+# BLOCK 2 freq:10000 seq:0
+# PRED: ENTRY [100.0%] (FALLTHRU)
+ subq $8, %rsp
+ .cfi_def_cfa_offset 16
+ # testsuite/gdb.dwarf2/fission-loclists-pie.c:29
+ .loc 1 29 0
+ leaq 4(%rsp), %rdi
+.LVL2:
+ call init
+.LVL3:
+ # testsuite/gdb.dwarf2/fission-loclists-pie.c:30
+ .loc 1 30 0
+ addq $8, %rsp
+ .cfi_def_cfa_offset 8
+# SUCC: EXIT [100.0%]
+ ret
+ .cfi_endproc
+.LFE1:
+ .size main, .-main
+.Letext0:
+ .section .debug_addr,"",@progbits
+.Ldebug_addr0:
+ .quad .LVL1 # 0x0
+ .quad .LVL2 # 0x1
+ .quad .LVL3 # 0x2
+ .quad .LFB0 # 0x3
+ .quad .LFB1 # 0x4
+ .quad .LVL3-1 # 0x5
+ .section .debug_info.dwo,"e",@progbits
+.Ldebug_info0:
+ .long 0x91 # Length of Compilation Unit Info
+ .value 0x4 # DWARF version number
+ .long .Ldebug_abbrev0 # Offset Into Abbrev. Section
+ .byte 0x8 # Pointer Size (in bytes)
+ .uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit)
+ .uleb128 0x4 # DW_AT_producer: "GNU C 4.9.x -m64 -mtune=generic -march=x86-64 -gdwarf-4 -gsplit-dwarf -O1 -fPIE"
+ .byte 0x1 # DW_AT_language
+ .uleb128 0x6 # DW_AT_name: "testsuite/gdb.dwarf2/fission-loclists-pie.c"
+ .byte 0xed # DW_AT_GNU_dwo_id
+ .byte 0x50
+ .byte 0xa4
+ .byte 0xe0
+ .byte 0xc9
+ .byte 0xf8
+ .byte 0xd3
+ .byte 0xf0
+ .uleb128 0x2 # (DIE (0x17) DW_TAG_subprogram)
+ # DW_AT_external
+ .uleb128 0x5 # DW_AT_name: "init"
+ .byte 0x1 # DW_AT_decl_file (testsuite/gdb.dwarf2/fission-loclists-pie.c)
+ .byte 0x15 # DW_AT_decl_line
+ # DW_AT_prototyped
+ .long 0x3a # DW_AT_type
+ .uleb128 0x3 # DW_AT_low_pc
+ .quad .LFE0-.LFB0 # DW_AT_high_pc
+ .uleb128 0x1 # DW_AT_frame_base
+ .byte 0x9c # DW_OP_call_frame_cfa
+ # DW_AT_GNU_all_call_sites
+ .long 0x3a # DW_AT_sibling
+ .uleb128 0x3 # (DIE (0x2e) DW_TAG_formal_parameter)
+ .ascii "b\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (testsuite/gdb.dwarf2/fission-loclists-pie.c)
+ .byte 0x15 # DW_AT_decl_line
+ .long 0x41 # DW_AT_type
+ .uleb128 0x1 # DW_AT_location
+ .byte 0x55 # DW_OP_reg5
+ .byte 0 # end of children of DIE 0x17
+ .uleb128 0x4 # (DIE (0x3a) DW_TAG_base_type)
+ .byte 0x4 # DW_AT_byte_size
+ .byte 0x5 # DW_AT_encoding
+ .ascii "int\0" # DW_AT_name
+ .uleb128 0x5 # (DIE (0x41) DW_TAG_pointer_type)
+ .byte 0x8 # DW_AT_byte_size
+ .long 0x3a # DW_AT_type
+ .uleb128 0x2 # (DIE (0x47) DW_TAG_subprogram)
+ # DW_AT_external
+ .uleb128 0x2 # DW_AT_name: "main"
+ .byte 0x1 # DW_AT_decl_file (testsuite/gdb.dwarf2/fission-loclists-pie.c)
+ .byte 0x1b # DW_AT_decl_line
+ # DW_AT_prototyped
+ .long 0x3a # DW_AT_type
+ .uleb128 0x4 # DW_AT_low_pc
+ .quad .LFE1-.LFB1 # DW_AT_high_pc
+ .uleb128 0x1 # DW_AT_frame_base
+ .byte 0x9c # DW_OP_call_frame_cfa
+ # DW_AT_GNU_all_call_sites
+ .long 0x84 # DW_AT_sibling
+ .uleb128 0x6 # (DIE (0x5e) DW_TAG_formal_parameter)
+ .uleb128 0x1 # DW_AT_name: "argc"
+ .byte 0x1 # DW_AT_decl_file (testsuite/gdb.dwarf2/fission-loclists-pie.c)
+ .byte 0x1b # DW_AT_decl_line
+ .long 0x3a # DW_AT_type
+ .long .LLST0-.Ldebug_loc0 # DW_AT_location
+ .uleb128 0x6 # (DIE (0x6a) DW_TAG_formal_parameter)
+ .uleb128 0 # DW_AT_name: "argv"
+ .byte 0x1 # DW_AT_decl_file (testsuite/gdb.dwarf2/fission-loclists-pie.c)
+ .byte 0x1b # DW_AT_decl_line
+ .long 0x84 # DW_AT_type
+ .long .LLST1-.Ldebug_loc0 # DW_AT_location
+ .uleb128 0x7 # (DIE (0x76) DW_TAG_GNU_call_site)
+ .uleb128 0x2 # DW_AT_low_pc
+ .long 0x17 # DW_AT_abstract_origin
+ .uleb128 0x8 # (DIE (0x7c) DW_TAG_GNU_call_site_parameter)
+ .uleb128 0x1 # DW_AT_location
+ .byte 0x55 # DW_OP_reg5
+ .uleb128 0x2 # DW_AT_GNU_call_site_value
+ .byte 0x91 # DW_OP_fbreg
+ .sleb128 -12
+ .byte 0 # end of children of DIE 0x76
+ .byte 0 # end of children of DIE 0x47
+ .uleb128 0x5 # (DIE (0x84) DW_TAG_pointer_type)
+ .byte 0x8 # DW_AT_byte_size
+ .long 0x8a # DW_AT_type
+ .uleb128 0x5 # (DIE (0x8a) DW_TAG_pointer_type)
+ .byte 0x8 # DW_AT_byte_size
+ .long 0x90 # DW_AT_type
+ .uleb128 0x9 # (DIE (0x90) DW_TAG_base_type)
+ .byte 0x1 # DW_AT_byte_size
+ .byte 0x6 # DW_AT_encoding
+ .uleb128 0x3 # DW_AT_name: "char"
+ .byte 0 # end of children of DIE 0xb
+ .section .debug_info,"",@progbits
+.Lskeleton_debug_info0:
+ .long 0x30 # Length of Compilation Unit Info
+ .value 0x4 # DWARF version number
+ .long .Lskeleton_debug_abbrev0 # Offset Into Abbrev. Section
+ .byte 0x8 # Pointer Size (in bytes)
+ .uleb128 0x1 # (DIE (0) DW_TAG_compile_unit)
+ .quad .Ltext0 # DW_AT_low_pc
+ .quad .Letext0-.Ltext0 # DW_AT_high_pc
+ .long .Ldebug_line0 # DW_AT_stmt_list
+ .long .LASF0 # DW_AT_GNU_dwo_name: "fission-loclists-pie.dwo"
+ .long .LASF1 # DW_AT_comp_dir: "/tmp/19999/obj64/gdb/testsuite"
+ # DW_AT_GNU_pubnames
+ .long .Ldebug_addr0 # DW_AT_GNU_addr_base
+ .byte 0xed # DW_AT_GNU_dwo_id
+ .byte 0x50
+ .byte 0xa4
+ .byte 0xe0
+ .byte 0xc9
+ .byte 0xf8
+ .byte 0xd3
+ .byte 0xf0
+ .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 0x2130 # (DW_AT_GNU_dwo_name)
+ .uleb128 0xe # (DW_FORM_strp)
+ .uleb128 0x1b # (DW_AT_comp_dir)
+ .uleb128 0xe # (DW_FORM_strp)
+ .uleb128 0x2134 # (DW_AT_GNU_pubnames)
+ .uleb128 0x19 # (DW_FORM_flag_present)
+ .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
+ .byte 0 # end of skeleton .debug_abbrev
+ .section .debug_abbrev.dwo,"e",@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 0x1f02 # (DW_FORM_GNU_str_index)
+ .uleb128 0x13 # (DW_AT_language)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0x1f02 # (DW_FORM_GNU_str_index)
+ .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 0x1f02 # (DW_FORM_GNU_str_index)
+ .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 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)
+ .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
+ .uleb128 0x19 # (DW_FORM_flag_present)
+ .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 0xf # (TAG: DW_TAG_pointer_type)
+ .byte 0 # DW_children_no
+ .uleb128 0xb # (DW_AT_byte_size)
+ .uleb128 0xb # (DW_FORM_data1)
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x6 # (abbrev code)
+ .uleb128 0x5 # (TAG: DW_TAG_formal_parameter)
+ .byte 0 # DW_children_no
+ .uleb128 0x3 # (DW_AT_name)
+ .uleb128 0x1f02 # (DW_FORM_GNU_str_index)
+ .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 0x17 # (DW_FORM_sec_offset)
+ .byte 0
+ .byte 0
+ .uleb128 0x7 # (abbrev code)
+ .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1f01 # (DW_FORM_GNU_addr_index)
+ .uleb128 0x31 # (DW_AT_abstract_origin)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x8 # (abbrev code)
+ .uleb128 0x410a # (TAG: DW_TAG_GNU_call_site_parameter)
+ .byte 0 # DW_children_no
+ .uleb128 0x2 # (DW_AT_location)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .uleb128 0x2111 # (DW_AT_GNU_call_site_value)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .byte 0
+ .byte 0
+ .uleb128 0x9 # (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 0x1f02 # (DW_FORM_GNU_str_index)
+ .byte 0
+ .byte 0
+ .byte 0
+ .section .debug_loc.dwo,"e",@progbits
+.Ldebug_loc0:
+.LLST0:
+ .byte 0x3 # Location list start/length entry (*.LLST0)
+ .uleb128 0 # Location list range start index (*.LVL1)
+ .long .LVL2-.LVL1 # Location list range length (*.LLST0)
+ .value 0x1 # Location expression size
+ .byte 0x55 # DW_OP_reg5
+ .byte 0x3 # Location list start/length entry (*.LLST0)
+ .uleb128 0x1 # Location list range start index (*.LVL2)
+ .long .LFE1-.LVL2 # Location list range length (*.LLST0)
+ .value 0x4 # Location expression size
+ .byte 0xf3 # DW_OP_GNU_entry_value
+ .uleb128 0x1
+ .byte 0x55 # DW_OP_reg5
+ .byte 0x9f # DW_OP_stack_value
+ .byte 0 # Location list terminator (*.LLST0)
+.LLST1:
+ .byte 0x3 # Location list start/length entry (*.LLST1)
+ .uleb128 0 # Location list range start index (*.LVL1)
+ .long .LVL3-1-.LVL1 # Location list range length (*.LLST1)
+ .value 0x1 # Location expression size
+ .byte 0x54 # DW_OP_reg4
+ .byte 0x3 # Location list start/length entry (*.LLST1)
+ .uleb128 0x5 # Location list range start index (*.LVL3-1)
+ .long .LFE1-.LVL3-1 # Location list range length (*.LLST1)
+ .value 0x4 # Location expression size
+ .byte 0xf3 # DW_OP_GNU_entry_value
+ .uleb128 0x1
+ .byte 0x54 # DW_OP_reg4
+ .byte 0x9f # DW_OP_stack_value
+ .byte 0 # Location list terminator (*.LLST1)
+ .section .debug_gnu_pubnames,"",@progbits
+ .long 0x22 # Pub Info Length
+ .value 0x2 # DWARF Version
+ .long .Lskeleton_debug_info0 # Offset of Compilation Unit Info
+ .long 0x95 # Compilation Unit Length
+ .long 0x17 # DIE offset
+ .byte 0x30 # GDB-index flags
+ .ascii "init\0" # external name
+ .long 0x47 # DIE offset
+ .byte 0x30 # GDB-index flags
+ .ascii "main\0" # external name
+ .long 0
+ .section .debug_gnu_pubtypes,"",@progbits
+ .long 0x21 # Pub Info Length
+ .value 0x2 # DWARF Version
+ .long .Lskeleton_debug_info0 # Offset of Compilation Unit Info
+ .long 0x95 # Compilation Unit Length
+ .long 0x3a # DIE offset
+ .byte 0x90 # GDB-index flags
+ .ascii "int\0" # external name
+ .long 0x90 # DIE offset
+ .byte 0x90 # GDB-index flags
+ .ascii "char\0" # external name
+ .long 0
+ .section .debug_aranges,"",@progbits
+ .long 0x2c # Length of Address Ranges Info
+ .value 0x2 # DWARF Version
+ .long .Lskeleton_debug_info0 # Offset of Compilation Unit Info
+ .byte 0x8 # Size of Address
+ .byte 0 # Size of Segment Descriptor
+ .value 0 # Pad to 16 byte boundary
+ .value 0
+ .quad .Ltext0 # Address
+ .quad .Letext0-.Ltext0 # Length
+ .quad 0
+ .quad 0
+ .section .debug_line,"",@progbits
+.Ldebug_line0:
+ .section .debug_line.dwo,"e",@progbits
+.Lskeleton_debug_line0:
+ .long .LELT0-.LSLT0 # Length of Source Line Info
+.LSLT0:
+ .value 0x4 # DWARF Version
+ .long .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 0xf2 # Line Range Value (Special Opcodes)
+ .byte 0xd # 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 # opcode: 0xa has 0 args
+ .byte 0 # opcode: 0xb has 0 args
+ .byte 0x1 # opcode: 0xc has 1 args
+ .ascii "testsuite/gdb.dwarf2\0" # Directory Entry: 0x1
+ .byte 0 # End directory table
+ .ascii "fission-loclists-pie.c\0" # File Entry: 0x1
+ .uleb128 0x1
+ .uleb128 0
+ .uleb128 0
+ .byte 0 # End file name table
+.LELTP0:
+.LELT0:
+ .section .debug_str,"MS",@progbits,1
+.LASF1:
+ .string "/tmp/19999/obj64/gdb/testsuite"
+.LASF0:
+ .string "fission-loclists-pie.dwo"
+ .section .debug_str_offsets.dwo,"e",@progbits
+ .long 0 # indexed string 0x0: argv
+ .long 0x5 # indexed string 0x1: argc
+ .long 0xa # indexed string 0x2: main
+ .long 0xf # indexed string 0x3: char
+ .long 0x14 # indexed string 0x4: GNU C 4.9.x -m64 -mtune=generic -march=x86-64 -gdwarf-4 -gsplit-dwarf -O1 -fPIE
+ .long 0x64 # indexed string 0x5: init
+ .long 0x69 # indexed string 0x6: testsuite/gdb.dwarf2/fission-loclists-pie.c
+ .section .debug_str.dwo,"e",@progbits
+ .string "argv"
+ .string "argc"
+ .string "main"
+ .string "char"
+ .string "GNU C 4.9.x -m64 -mtune=generic -march=x86-64 -gdwarf-4 -gsplit-dwarf -O1 -fPIE"
+ .string "init"
+ .string "testsuite/gdb.dwarf2/fission-loclists-pie.c"
+ .ident "GCC: 4.9.x"
+ .section .note.GNU-stack,"",@progbits
diff --git a/gdb/testsuite/gdb.dwarf2/fission-loclists-pie.exp b/gdb/testsuite/gdb.dwarf2/fission-loclists-pie.exp
new file mode 100644
index 0000000..e0fbb47
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/fission-loclists-pie.exp
@@ -0,0 +1,61 @@
+# Copyright 2016 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 testcase exercises PR symtab/19999.
+# For Fission, while we shouldn't add the DWARF base address to addresses
+# coming from .debug_addr, will still need to add the base offset in case
+# we're debugging a PIE executable.
+
+load_lib dwarf.exp
+
+# We run objcopy locally to split out the .dwo file.
+if [is_remote host] {
+ return 0
+}
+
+# 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
+}
+
+standard_testfile .S
+
+if [build_executable_from_fission_assembler \
+ "$testfile.exp" "$binfile" "$srcfile" \
+ [list "nodebug" "ldflags=-pie"]] {
+ return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+# Make sure we can find the .dwo file, regardless of whether we're
+# running in parallel mode.
+gdb_test_no_output "set debug-file-directory [file dirname $binfile]" \
+ "set debug-file-directory"
+gdb_load $binfile
+
+if ![runto_main] {
+ return -1
+}
+
+# Verify gdb can find argc.
+
+gdb_test "p argc" " = 1"
diff --git a/gdb/testsuite/lib/dwarf.exp b/gdb/testsuite/lib/dwarf.exp
index 4a02ab2..717cbb0 100644
--- a/gdb/testsuite/lib/dwarf.exp
+++ b/gdb/testsuite/lib/dwarf.exp
@@ -78,7 +78,7 @@ proc build_executable_from_fission_assembler { testname executable sources optio
return -1
}
- set result [gdb_compile $object_file $executable executable {nodebug}]
+ set result [gdb_compile $object_file $executable executable $options]
if { "$result" != "" } {
return -1
}