On 07/09/2014 11:33 AM, Jan Kratochvil wrote:
> Hi,
>
> 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.
>
> 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)
>
> 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
>
>
> optimfix2.patch
>
>
> gdb/
> 2014-07-09 Jan Kratochvil <jan.kratochvil@redhat.com>
>
> * 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/
> 2014-07-09 Jan Kratochvil <jan.kratochvil@redhat.com>
>
> * 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/value.c b/gdb/value.c
> index 557056f..4b7495e 100644
> --- a/gdb/value.c
> +++ b/gdb/value.c
> @@ -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).
Hmm, why? We can collect only part of a non-optimized out value.
What am I missing? Does this manage to somehow pass the tests
under gdb.trace/ (against --target_board=native-gdbserver) ?
> 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 || VEC_empty (range_s, val1->unavailable));
> + gdb_assert (val2->optimized_out || VEC_empty (range_s, val2->unavailable));
On Wed, 09 Jul 2014 13:52:00 +0200, Pedro Alves wrote:
> On 07/09/2014 11:33 AM, Jan Kratochvil wrote:
> > --- a/gdb/value.c
> > +++ b/gdb/value.c
> > @@ -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).
>
> Hmm, why? We can collect only part of a non-optimized out value.
> What am I missing?
I miss some documentation how these availability fields interact together.
value_available_contents_bits_eq is written according to the struct value
comments but they do not correspond to the real world struct value data.
'unavailable' suggests that optimized out variable should have it set to the
full range of the variable. But struct value with OPTIMIZED_OUT field set
still has UNAVAILABLE empty. As the variable is optimized out the CONTENTS is
also NULL - this causes the crash reproduced by
'gdb.arch/amd64-entry-value-paramref.exp'.
There are also check_validity and check_any_valid methods but how they are
related to the 'unavailable' data field is also not documented.
This patch was my second attempt to fix/document the availability stuff, it
would be useful to suggest how it is designed.
> Does this manage to somehow pass the tests
> under gdb.trace/ (against --target_board=native-gdbserver) ?
You are right, this patch regresses during gdbserver mode.
> > 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 || VEC_empty (range_s, val1->unavailable));
> > + gdb_assert (val2->optimized_out || VEC_empty (range_s, val2->unavailable));
Thanks,
Jan
@@ -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 || 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)
{
range_s *r1, *r2;
new file mode 100644
@@ -0,0 +1,459 @@
+/* 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/>. */
+
+/* This file is compiled from gdb.arch/amd64-entry-value-paramref.cc
+ using -g -dA -S -O2.
+ Additionally it has been patched. */
+
+ .file "amd64-entry-value-paramref.cc"
+ .text
+.Ltext0:
+ .p2align 4,,15
+ .type _ZL3barRi.constprop.0, @function
+_ZL3barRi.constprop.0:
+.LFB2:
+ .file 1 "gdb.arch/amd64-entry-value-paramref.cc"
+ # gdb.arch/amd64-entry-value-paramref.cc:21
+ .loc 1 21 0
+ .cfi_startproc
+.LVL0:
+# BLOCK 2 freq:10000 seq:0
+# PRED: ENTRY [100.0%] (FALLTHRU)
+ # gdb.arch/amd64-entry-value-paramref.cc:23
+ .loc 1 23 0
+ movl vv(%rip), %eax
+ # gdb.arch/amd64-entry-value-paramref.cc:24
+ .loc 1 24 0
+ movq %rdi, p(%rip)
+ # gdb.arch/amd64-entry-value-paramref.cc:23
+ .loc 1 23 0
+ addl $1, %eax
+ movl %eax, vv(%rip)
+ # gdb.arch/amd64-entry-value-paramref.cc:25
+ .loc 1 25 0
+ movl (%rdi), %eax
+# SUCC: EXIT [100.0%]
+ # gdb.arch/amd64-entry-value-paramref.cc:26
+ .loc 1 26 0
+ ret
+ .cfi_endproc
+.LFE2:
+ .size _ZL3barRi.constprop.0, .-_ZL3barRi.constprop.0
+ .section .text.startup,"ax",@progbits
+ .p2align 4,,15
+ .globl main
+ .type main, @function
+main:
+.LFB1:
+ # gdb.arch/amd64-entry-value-paramref.cc:30
+ .loc 1 30 0
+ .cfi_startproc
+# BLOCK 2 freq:10000 seq:0
+# PRED: ENTRY [100.0%] (FALLTHRU)
+ subq $16, %rsp
+ .cfi_def_cfa_offset 24
+.LBB2:
+ # gdb.arch/amd64-entry-value-paramref.cc:32
+ .loc 1 32 0
+ leaq 12(%rsp), %rdi
+ # gdb.arch/amd64-entry-value-paramref.cc:31
+ .loc 1 31 0
+ movl $10, 12(%rsp)
+ # gdb.arch/amd64-entry-value-paramref.cc:32
+ .loc 1 32 0
+ call _ZL3barRi.constprop.0
+.LVL1:
+.LBE2:
+ # gdb.arch/amd64-entry-value-paramref.cc:33
+ .loc 1 33 0
+ addq $16, %rsp
+ .cfi_def_cfa_offset 8
+# SUCC: EXIT [100.0%]
+ ret
+ .cfi_endproc
+.LFE1:
+ .size main, .-main
+ .globl p
+ .bss
+ .align 8
+ .type p, @object
+ .size p, 8
+p:
+ .zero 8
+ .globl vv
+ .align 4
+ .type vv, @object
+ .size vv, 4
+vv:
+ .zero 4
+ .text
+.Letext0:
+ .section .debug_info,"",@progbits
+.Ldebug_info0:
+ .long .Linfo_end - .Linfo_start # Length of Compilation Unit Info
+.Linfo_start:
+ .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 .LASF0 # DW_AT_producer: "GNU C++ 4.8.2 20131212 (Red Hat 4.8.2-7) -mtune=generic -march=x86-64 -g -O2"
+ .byte 0x4 # DW_AT_language
+ .long .LASF1 # DW_AT_name: "gdb.arch/amd64-entry-value-paramref.cc"
+ .long .LASF2 # DW_AT_comp_dir: ""
+ .long .Ldebug_ranges0+0 # DW_AT_ranges
+ .quad 0 # DW_AT_low_pc
+ .long .Ldebug_line0 # DW_AT_stmt_list
+DIE29: .uleb128 0x2 # (DIE (0x29) DW_TAG_subprogram)
+ .ascii "bar\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
+ .byte 0x15 # DW_AT_decl_line
+ .long DIE45 # DW_AT_type
+ .byte 0x1 # DW_AT_inline
+DIE39: .uleb128 0x3 # (DIE (0x39) DW_TAG_formal_parameter)
+ .ascii "ref\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
+ .byte 0x15 # DW_AT_decl_line
+ .long DIE4c # DW_AT_type
+ .byte 0 # end of children of DIE 0x29
+DIE45: .uleb128 0x4 # (DIE (0x45) DW_TAG_base_type)
+ .byte 0x4 # DW_AT_byte_size
+ .byte 0x5 # DW_AT_encoding
+ .ascii "int\0" # DW_AT_name
+DIE4c: .uleb128 0x5 # (DIE (0x4c) DW_TAG_const_type)
+ .long DIE51 # DW_AT_type
+DIE51: .uleb128 0x6 # (DIE (0x51) DW_TAG_reference_type)
+ .byte 0x8 # DW_AT_byte_size
+ .long DIE45 # DW_AT_type
+DIE57: .uleb128 0x7 # (DIE (0x57) DW_TAG_subprogram)
+ .long DIE29 # DW_AT_abstract_origin
+ .quad .LFB2 # DW_AT_low_pc
+ .quad .LFE2-.LFB2 # DW_AT_high_pc
+ .uleb128 0x1 # DW_AT_frame_base
+ .byte 0x9c # DW_OP_call_frame_cfa
+ # DW_AT_GNU_all_call_sites
+DIE72: .uleb128 0x8 # (DIE (0x72) DW_TAG_formal_parameter)
+ .long DIE39 # DW_AT_abstract_origin
+ .uleb128 0x1 # DW_AT_location
+ .byte 0x55 # DW_OP_reg5
+ .byte 0 # end of children of DIE 0x57
+DIE7a: .uleb128 0x9 # (DIE (0x7a) DW_TAG_subprogram)
+ # DW_AT_external
+ .long .LASF3 # DW_AT_name: "main"
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
+ .byte 0x1d # DW_AT_decl_line
+ .long DIE45 # DW_AT_type
+ .quad .LFB1 # 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
+DIE9b: .uleb128 0xa # (DIE (0x9b) DW_TAG_lexical_block)
+ .quad .LBB2 # DW_AT_low_pc
+ .quad .LBE2-.LBB2 # DW_AT_high_pc
+DIEac: .uleb128 0xb # (DIE (0xac) DW_TAG_variable)
+ .ascii "var\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
+ .byte 0x1f # DW_AT_decl_line
+ .long DIE45 # DW_AT_type
+ .uleb128 0x2 # DW_AT_location
+ .byte 0x91 # DW_OP_fbreg
+ .sleb128 -12
+DIEba: .uleb128 0xc # (DIE (0xba) DW_TAG_GNU_call_site)
+ .quad .LVL1 # DW_AT_low_pc
+ .long DIE57 # DW_AT_abstract_origin
+DIEc7: .uleb128 0xd # (DIE (0xc7) 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
+#if 0
+ .uleb128 0x1 # DW_AT_GNU_call_site_data_value
+ .byte 0x3a # DW_OP_lit10
+#else
+ .uleb128 1f - 2f # DW_AT_GNU_call_site_data_value
+2:
+ .byte 0xf3 # DW_OP_GNU_entry_value
+ .uleb128 1f - 3f
+3:
+ .byte 0x55 # DW_OP_reg5
+1:
+#endif
+ .byte 0 # end of children of DIE 0xba
+ .byte 0 # end of children of DIE 0x9b
+ .byte 0 # end of children of DIE 0x7a
+DIEd2: .uleb128 0xe # (DIE (0xd2) DW_TAG_variable)
+ .ascii "vv\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
+ .byte 0x12 # DW_AT_decl_line
+ .long DIEe6 # DW_AT_type
+ # DW_AT_external
+ .uleb128 0x9 # DW_AT_location
+ .byte 0x3 # DW_OP_addr
+ .quad vv
+DIEe6: .uleb128 0xf # (DIE (0xe6) DW_TAG_volatile_type)
+ .long DIE45 # DW_AT_type
+DIEeb: .uleb128 0xe # (DIE (0xeb) DW_TAG_variable)
+ .ascii "p\0" # DW_AT_name
+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
+ .byte 0x12 # DW_AT_decl_line
+ .long DIEfe # DW_AT_type
+ # DW_AT_external
+ .uleb128 0x9 # DW_AT_location
+ .byte 0x3 # DW_OP_addr
+ .quad p
+DIEfe: .uleb128 0x10 # (DIE (0xfe) DW_TAG_pointer_type)
+ .byte 0x8 # DW_AT_byte_size
+ .long DIEe6 # DW_AT_type
+ .byte 0 # end of children of DIE 0xb
+.Linfo_end:
+ .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 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 0x20 # (DW_AT_inline)
+ .uleb128 0xb # (DW_FORM_data1)
+ .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)
+ .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 0x26 # (TAG: DW_TAG_const_type)
+ .byte 0 # DW_children_no
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x6 # (abbrev code)
+ .uleb128 0x10 # (TAG: DW_TAG_reference_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 0x7 # (abbrev code)
+ .uleb128 0x2e # (TAG: DW_TAG_subprogram)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x31 # (DW_AT_abstract_origin)
+ .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)
+ .byte 0
+ .byte 0
+ .uleb128 0x8 # (abbrev code)
+ .uleb128 0x5 # (TAG: DW_TAG_formal_parameter)
+ .byte 0 # DW_children_no
+ .uleb128 0x31 # (DW_AT_abstract_origin)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .uleb128 0x2 # (DW_AT_location)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .byte 0
+ .byte 0
+ .uleb128 0x9 # (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 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)
+ .byte 0
+ .byte 0
+ .uleb128 0xa # (abbrev code)
+ .uleb128 0xb # (TAG: DW_TAG_lexical_block)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x12 # (DW_AT_high_pc)
+ .uleb128 0x7 # (DW_FORM_data8)
+ .byte 0
+ .byte 0
+ .uleb128 0xb # (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 0xc # (abbrev code)
+ .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
+ .byte 0x1 # DW_children_yes
+ .uleb128 0x11 # (DW_AT_low_pc)
+ .uleb128 0x1 # (DW_FORM_addr)
+ .uleb128 0x31 # (DW_AT_abstract_origin)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0xd # (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)
+ .uleb128 0x2112 # (DW_AT_GNU_call_site_data_value)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .byte 0
+ .byte 0
+ .uleb128 0xe # (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 0x3f # (DW_AT_external)
+ .uleb128 0x19 # (DW_FORM_flag_present)
+ .uleb128 0x2 # (DW_AT_location)
+ .uleb128 0x18 # (DW_FORM_exprloc)
+ .byte 0
+ .byte 0
+ .uleb128 0xf # (abbrev code)
+ .uleb128 0x35 # (TAG: DW_TAG_volatile_type)
+ .byte 0 # DW_children_no
+ .uleb128 0x49 # (DW_AT_type)
+ .uleb128 0x13 # (DW_FORM_ref4)
+ .byte 0
+ .byte 0
+ .uleb128 0x10 # (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
+ .byte 0
+ .section .debug_aranges,"",@progbits
+ .long 0x3c # 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 .Ltext0 # Address
+ .quad .Letext0-.Ltext0 # Length
+ .quad .LFB1 # Address
+ .quad .LFE1-.LFB1 # Length
+ .quad 0
+ .quad 0
+ .section .debug_ranges,"",@progbits
+.Ldebug_ranges0:
+ .quad .Ltext0 # Offset 0
+ .quad .Letext0
+ .quad .LFB1 # Offset 0x10
+ .quad .LFE1
+ .quad 0
+ .quad 0
+ .section .debug_line,"",@progbits
+.Ldebug_line0:
+ .section .debug_str,"MS",@progbits,1
+.LASF1:
+ .string "gdb.arch/amd64-entry-value-paramref.cc"
+.LASF2:
+ .string ""
+.LASF0:
+ .string "GNU C++ 4.8.2 20131212 (Red Hat 4.8.2-7) -mtune=generic -march=x86-64 -g -O2"
+.LASF3:
+ .string "main"
+ .ident "GCC: (GNU) 4.8.2 20131212 (Red Hat 4.8.2-7)"
+ .section .note.GNU-stack,"",@progbits
new file mode 100644
@@ -0,0 +1,33 @@
+/* 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/>. */
+
+volatile int vv, *p;
+
+static __attribute__((noinline)) int
+bar (int &ref)
+{
+ vv++; /* break-here */
+ p = &ref;
+ return ref;
+}
+
+int
+main (void)
+{
+ int var = 10;
+ return bar (var);
+}
new file mode 100644
@@ -0,0 +1,35 @@
+# 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 .cc
+
+if { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
+ verbose "Skipping amd64-entry-value-paramref."
+ return
+}
+
+if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} "c++"] } {
+ return -1
+}
+
+if ![runto_main] {
+ return -1
+}
+
+set srcfile $srcfile2
+gdb_breakpoint [gdb_get_line_number "break-here"]
+
+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 .*}
new file mode 100755
@@ -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
new file mode 100644
@@ -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;
+}
new file mode 100644
@@ -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>}}}