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Fix regression of the optimized-out entry data values fix (of BZ 1111910).

This commit is contained in:
Jan Kratochvil 2014-07-09 13:00:42 +02:00
parent cec9297712
commit 4f54fc4526
2 changed files with 457 additions and 57 deletions
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509
gdb-entrydataoptimizedout.patch
View File

@ -1,93 +1,110 @@
http://sourceware.org/ml/gdb-patches/2014-06/msg00797.html
Subject: [patch+7.8] Fix crash on optimized-out entry data values
http://sourceware.org/ml/gdb-patches/2014-07/msg00158.html
Subject: [patchv2] Fix crash on optimized-out entry data values
--jRHKVT23PllUwdXP
--UlVJffcvxoiEqYs2
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Hi,
https://bugzilla.redhat.com/show_bug.cgi?id=1111910
former post of this fix was for:
[patch+7.8] Fix crash on optimized-out entry data values
https://sourceware.org/ml/gdb-patches/2014-06/msg00797.html
=
https://bugzilla.redhat.com/show_bug.cgi?id=1111910
this can happen for real world -O2 -g executables:
#9 0x0000003b6e0998b2 in wxEntry (argc=@0x7fffffffd86c: 1,
argc@entry=@0x7fffffffd86c: <optimized out>,
^^^^^^^^^^^^^^^
argv=<optimized out>) at src/common/init.cpp:460
GDB did crash in such case.
this can happen for real world -O2 -g executables:
#9 0x0000003b6e0998b2 in wxEntry (argc=@0x7fffffffd86c: 1,
argc@entry=@0x7fffffffd86c: <optimized out>,
^^^^^^^^^^^^^^^
argv=<optimized out>) at src/common/init.cpp:460
But the fix was wrong/regressing as shown here:
https://bugzilla.redhat.com/show_bug.cgi?id=1117192
https://bugzilla.redhat.com/attachment.cgi?id=916298 (at the bottom)
GDB did crash in such case.
No regressions on {x86_64,x86_64-m32}-fedorarawhide-linux-gnu.
Here is a new fix, also with a new testcase reproducing crash of the wrong fix
above.
No regressions on {x86_64,x86_64-m32,i686}-fedorarawhide-linux-gnu.
Jan
--jRHKVT23PllUwdXP
--UlVJffcvxoiEqYs2
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline; filename="entrydataoptimizedout.patch"
Content-Disposition: inline; filename="optimfix2.patch"
gdb/
2014-06-22 Jan Kratochvil <jan.kratochvil@redhat.com>
2014-07-09 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix crash on optimized-out entry data values.
* stack.c (read_frame_arg): Check value_optimized_out before calling
value_available_contents_eq.
* value.c (value_available_contents_bits_eq): Check OPTIMIZED_OUT for
VAL1 and VAL2.
* value.h (value_available_contents_eq): Mention optimized out values
in function comment.
* value.c (struct value): Extend the comment for fields optimized_out
and unavailable.
(value_available_contents_bits_eq): Handle OPTIMIZED_OUT values with
empty UNAVAILABLE as special cases.
gdb/testsuite/
2014-06-22 Jan Kratochvil <jan.kratochvil@redhat.com>
2014-07-09 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix crash on optimized-out entry data values.
* gdb.arch/amd64-entry-value-paramref.S: New file.
* gdb.arch/amd64-entry-value-paramref.cc: New file.
* gdb.arch/amd64-entry-value-paramref.exp: New file.
* gdb.arch/amd64-optimout-repeat.S: New file.
* gdb.arch/amd64-optimout-repeat.c: New file.
* gdb.arch/amd64-optimout-repeat.exp: New file.
diff --git a/gdb/stack.c b/gdb/stack.c
index 0d6d8e7..a0f3513 100644
--- a/gdb/stack.c
+++ b/gdb/stack.c
@@ -413,6 +413,7 @@ read_frame_arg (struct symbol *sym, struct frame_info *frame,
/* If the reference addresses match but dereferenced
content does not match print them. */
if (val != val_deref
+ && !value_optimized_out (entryval_deref)
&& value_available_contents_eq (val_deref, 0,
entryval_deref, 0,
TYPE_LENGTH (type_deref)))
diff --git a/gdb/value.c b/gdb/value.c
index 557056f..74b9d56 100644
index 557056f..4b7495e 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -700,6 +700,8 @@ value_available_contents_bits_eq (const struct value *val1, int offset1,
@@ -198,12 +198,13 @@ struct value
unsigned int lazy : 1;
/* If nonzero, this is the value of a variable that does not
- actually exist in the program. If nonzero, and LVAL is
+ actually fully exist in the program. If nonzero, and LVAL is
lval_register, this is a register ($pc, $sp, etc., never a
program variable) that has not been saved in the frame. All
optimized-out values are treated pretty much the same, except
registers have a different string representation and related
- error strings. */
+ error strings. It is true also for only partially optimized
+ out variables - see the 'unavailable' field below. */
unsigned int optimized_out : 1;
/* If value is a variable, is it initialized or not. */
@@ -334,7 +335,10 @@ struct value
valid if lazy is nonzero. */
gdb_byte *contents;
- /* Unavailable ranges in CONTENTS. We mark unavailable ranges,
+ /* If OPTIMIZED_OUT is false then UNAVAILABLE must be VEC_empty
+ (not necessarily NULL). If OPTIMIZED_OUT is true then VEC_empty
+ UNAVAILABLE means the whole value range. Otherwise it specifies
+ unavailable ranges in CONTENTS. We mark unavailable ranges,
rather than available, since the common and default case is for a
value to be available. This is filled in at value read time. The
unavailable ranges are tracked in bits. */
@@ -701,6 +705,15 @@ value_available_contents_bits_eq (const struct value *val1, int offset1,
/* See function description in value.h. */
gdb_assert (!val1->lazy && !val2->lazy);
+ gdb_assert (!val1->optimized_out);
+ gdb_assert (!val2->optimized_out);
+ gdb_assert (val1->optimized_out || VEC_empty (range_s, val1->unavailable));
+ gdb_assert (val2->optimized_out || VEC_empty (range_s, val2->unavailable));
+ if (val1->optimized_out != val2->optimized_out)
+ return 0;
+ if (val1->optimized_out && val2->optimized_out
+ && VEC_empty (range_s, val1->unavailable)
+ && VEC_empty (range_s, val2->unavailable))
+ return 1;
+
while (length > 0)
{
diff --git a/gdb/value.h b/gdb/value.h
index c2e9faf..80a2225 100644
--- a/gdb/value.h
+++ b/gdb/value.h
@@ -499,7 +499,7 @@ extern void mark_value_bits_unavailable
read it. As this routine is used by printing routines, which may
be printing values in the value history, long after the inferior is
gone, it works with const values. Therefore, this routine must not
- be called with lazy values. */
+ be called with lazy or optimized_out values. */
extern int value_available_contents_eq (const struct value *val1, LONGEST offset1,
const struct value *val2, LONGEST offset2,
range_s *r1, *r2;
diff --git a/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.S b/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.S
new file mode 100644
index 0000000..6daee63
index 0000000..a1e9d0a
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.S
@@ -0,0 +1,459 @@
@ -552,7 +569,7 @@ index 0000000..6daee63
+ .section .note.GNU-stack,"",@progbits
diff --git a/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.cc b/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.cc
new file mode 100644
index 0000000..e3a28de
index 0000000..aa473a3
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.cc
@@ -0,0 +1,33 @@
@ -630,6 +647,386 @@ index 0000000..f06247d
+
+gdb_continue_to_breakpoint "break-here" ".* break-here .*"
+gdb_test "frame" {bar \(ref=@0x[0-9a-f]+: 10, ref@entry=@0x[0-9a-f]+: <optimized out>\) at .*}
diff --git a/gdb/testsuite/gdb.arch/amd64-optimout-repeat.S b/gdb/testsuite/gdb.arch/amd64-optimout-repeat.S
new file mode 100755
index 0000000..2f8f4d2
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/amd64-optimout-repeat.S
@@ -0,0 +1,297 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2012-2014 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 is compiled from gdb.arch/amd64-entry-value-param.c
+ using -g -dA -S -O2. */
+
+ .file "amd64-optimout-repeat.c"
+ .text
+.Ltext0:
+ .section .text.unlikely,"ax",@progbits
+.LCOLDB0:
+ .section .text.startup,"ax",@progbits
+.LHOTB0:
+ .p2align 4,,15
+ .section .text.unlikely
+.Ltext_cold0:
+ .section .text.startup
+ .globl main
+ .type main, @function
+main:
+.LFB0:
+ .file 1 "gdb.arch/amd64-optimout-repeat.c"
+ # gdb.arch/amd64-optimout-repeat.c:20
+ .loc 1 20 0
+ .cfi_startproc
+# BLOCK 2 freq:10000 seq:0
+# PRED: ENTRY [100.0%] (FALLTHRU)
+.LVL0:
+ # gdb.arch/amd64-optimout-repeat.c:29
+ .loc 1 29 0
+ xorl %eax, %eax
+# SUCC: EXIT [100.0%]
+ ret
+ .cfi_endproc
+.LFE0:
+ .size main, .-main
+ .section .text.unlikely
+.LCOLDE0:
+ .section .text.startup
+.LHOTE0:
+ .text
+.Letext0:
+ .section .text.unlikely
+.Letext_cold0:
+ .section .debug_info,"",@progbits
+.Ldebug_info0:
+ .long 0x97 # 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)
+ .long .LASF1 # DW_AT_producer: "GNU C 4.9.1 20140709 (prerelease) -mtune=generic -march=x86-64 -g -O2"
+ .byte 0x1 # DW_AT_language
+ .long .LASF2 # DW_AT_name: "gdb.arch/amd64-optimout-repeat.c"
+ .long .LASF3 # DW_AT_comp_dir: ""
+ .long .Ldebug_ranges0+0 # DW_AT_ranges
+ .quad 0 # DW_AT_low_pc
+ .long .Ldebug_line0 # DW_AT_stmt_list
+ .uleb128 0x2 # (DIE (0x29) DW_TAG_subprogram)
+ # DW_AT_external
+ .long .LASF4 # DW_AT_name: "main"
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-optimout-repeat.c)
+ .byte 0x13 # DW_AT_decl_line
+ # DW_AT_prototyped
+ .long 0x7c # DW_AT_type
+ .quad .LFB0 # 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 0x7c # DW_AT_sibling
+ .uleb128 0x3 # (DIE (0x4a) DW_TAG_structure_type)
+ .value 0x404 # DW_AT_byte_size
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-optimout-repeat.c)
+ .byte 0x15 # DW_AT_decl_line
+ .long 0x6a # DW_AT_sibling
+ .uleb128 0x4 # (DIE (0x53) DW_TAG_member)
+ .ascii "i\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-optimout-repeat.c)
+ .byte 0x17 # DW_AT_decl_line
+ .long 0x7c # DW_AT_type
+ .byte 0 # DW_AT_data_member_location
+ .uleb128 0x4 # (DIE (0x5d) DW_TAG_member)
+ .ascii "xxx\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-optimout-repeat.c)
+ .byte 0x18 # DW_AT_decl_line
+ .long 0x83 # DW_AT_type
+ .byte 0x4 # DW_AT_data_member_location
+ .byte 0 # end of children of DIE 0x4a
+ .uleb128 0x5 # (DIE (0x6a) DW_TAG_variable)
+ .ascii "v\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-optimout-repeat.c)
+ .byte 0x1a # DW_AT_decl_line
+ .long 0x4a # DW_AT_type
+ .uleb128 0x7 # DW_AT_location
+ .byte 0x30 # DW_OP_lit0
+ .byte 0x9f # DW_OP_stack_value
+ .byte 0x93 # DW_OP_piece
+ .uleb128 0x4
+ .byte 0x93 # DW_OP_piece
+ .uleb128 0x400
+ .byte 0 # end of children of DIE 0x29
+ .uleb128 0x6 # (DIE (0x7c) DW_TAG_base_type)
+ .byte 0x4 # DW_AT_byte_size
+ .byte 0x5 # DW_AT_encoding
+ .ascii "int\0" # DW_AT_name
+ .uleb128 0x7 # (DIE (0x83) DW_TAG_array_type)
+ .long 0x7c # DW_AT_type
+ .long 0x93 # DW_AT_sibling
+ .uleb128 0x8 # (DIE (0x8c) DW_TAG_subrange_type)
+ .long 0x93 # DW_AT_type
+ .byte 0xff # DW_AT_upper_bound
+ .byte 0 # end of children of DIE 0x83
+ .uleb128 0x9 # (DIE (0x93) DW_TAG_base_type)
+ .byte 0x8 # DW_AT_byte_size
+ .byte 0x7 # DW_AT_encoding
+ .long .LASF0 # DW_AT_name: "sizetype"
+ .byte 0 # end of children of DIE 0xb
+ .section .debug_abbrev,"",@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 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 0x55 # (DW_AT_ranges)
+ .uleb128 0x17 # (DW_FORM_sec_offset)
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x10 # (DW_AT_stmt_list)
+ .uleb128 0x17 # (DW_FORM_sec_offset)
+ .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 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 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 0x1 # (DW_FORM_addr)
+ .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 0x13 # (TAG: DW_TAG_structure_type)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0xb # (DW_AT_byte_size)
+ .uleb128 0x5 # (DW_FORM_data2)
+ .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 0x4 # (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)
+ .byte 0
+ .byte 0
+ .uleb128 0x5 # (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 0x13 # (DW_FORM_ref4)
+ .uleb128 0x2 # (DW_AT_location)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .byte 0
+ .byte 0
+ .uleb128 0x6 # (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 0x7 # (abbrev code)
+ .uleb128 0x1 # (TAG: DW_TAG_array_type)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .uleb128 0x1 # (DW_AT_sibling)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x8 # (abbrev code)
+ .uleb128 0x21 # (TAG: DW_TAG_subrange_type)
+ .byte 0 # DW_children_no
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .uleb128 0x2f # (DW_AT_upper_bound)
+ .uleb128 0xb # (DW_FORM_data1)
+ .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 0xe # (DW_FORM_strp)
+ .byte 0
+ .byte 0
+ .byte 0
+ .section .debug_aranges,"",@progbits
+ .long 0x2c # Length of Address Ranges Info
+ .value 0x2 # DWARF Version
+ .long .Ldebug_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 .LFB0 # Address
+ .quad .LFE0-.LFB0 # Length
+ .quad 0
+ .quad 0
+ .section .debug_ranges,"",@progbits
+.Ldebug_ranges0:
+ .quad .LFB0 # Offset 0
+ .quad .LFE0
+ .quad 0
+ .quad 0
+ .section .debug_line,"",@progbits
+.Ldebug_line0:
+ .section .debug_str,"MS",@progbits,1
+.LASF0:
+ .string "sizetype"
+.LASF2:
+ .string "gdb.arch/amd64-optimout-repeat.c"
+.LASF1:
+ .string "GNU C 4.9.1 20140709 (prerelease) -mtune=generic -march=x86-64 -g -O2"
+.LASF3:
+ .string ""
+.LASF4:
+ .string "main"
+ .ident "GCC: (GNU) 4.9.1 20140709 (prerelease)"
+ .section .note.GNU-stack,"",@progbits
diff --git a/gdb/testsuite/gdb.arch/amd64-optimout-repeat.c b/gdb/testsuite/gdb.arch/amd64-optimout-repeat.c
new file mode 100644
index 0000000..a32b6de
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/amd64-optimout-repeat.c
@@ -0,0 +1,29 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2014 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
+main (void)
+{
+ struct
+ {
+ int i;
+ int xxx[0x100];
+ }
+ v = { 0 };
+
+ return v.i;
+}
diff --git a/gdb/testsuite/gdb.arch/amd64-optimout-repeat.exp b/gdb/testsuite/gdb.arch/amd64-optimout-repeat.exp
new file mode 100644
index 0000000..f3c93a4
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/amd64-optimout-repeat.exp
@@ -0,0 +1,36 @@
+# Copyright (C) 2014 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/>.
+
+standard_testfile .S .c
+set opts {}
+
+if [info exists COMPILE] {
+ # make check RUNTESTFLAGS="gdb.arch/amd64-optimout-repeat.exp COMPILE=1"
+ set srcfile ${srcfile2}
+ lappend opts debug optimize=-O2
+} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
+ verbose "Skipping amd64-optimout-repeat."
+ return
+}
+
+if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} $opts] } {
+ return -1
+}
+
+if ![runto_main] {
+ return -1
+}
+
+gdb_test "print v" { = {i = 0, xxx = {<optimized out> <repeats 256 times>}}}
--jRHKVT23PllUwdXP--
--UlVJffcvxoiEqYs2--

5
gdb.spec
View File

@ -25,7 +25,7 @@ Version: 7.7.90.%{snapsrc}
# The release always contains a leading reserved number, start it at 1.
# `upstream' is not a part of `name' to stay fully rpm dependencies compatible for the testing.
Release: 9%{?dist}
Release: 10%{?dist}
License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ and GPLv2+ with exceptions and GPL+ and LGPLv2+ and BSD and Public Domain and GFDL
Group: Development/Debuggers
@ -1291,6 +1291,9 @@ then
fi
%changelog
* Wed Jul 9 2014 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.7.90.20140627-10.fc21
- Fix regression of the optimized-out entry data values fix (of BZ 1111910).
* Tue Jul 8 2014 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.7.90.20140627-9.fc21
- Rebase the Intel VLA patchset.
- Python completion w/overriden completer (Sergio Durigan Junior, BZ 1075199).