636 lines
20 KiB
Diff
636 lines
20 KiB
Diff
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http://sourceware.org/ml/gdb-patches/2014-06/msg00797.html
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Subject: [patch+7.8] Fix crash on optimized-out entry data values
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--jRHKVT23PllUwdXP
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline
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Hi,
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https://bugzilla.redhat.com/show_bug.cgi?id=1111910
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this can happen for real world -O2 -g executables:
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#9 0x0000003b6e0998b2 in wxEntry (argc=@0x7fffffffd86c: 1,
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argc@entry=@0x7fffffffd86c: <optimized out>,
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^^^^^^^^^^^^^^^
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argv=<optimized out>) at src/common/init.cpp:460
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GDB did crash in such case.
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No regressions on {x86_64,x86_64-m32}-fedorarawhide-linux-gnu.
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Jan
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--jRHKVT23PllUwdXP
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline; filename="entrydataoptimizedout.patch"
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gdb/
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2014-06-22 Jan Kratochvil <jan.kratochvil@redhat.com>
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Fix crash on optimized-out entry data values.
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* stack.c (read_frame_arg): Check value_optimized_out before calling
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value_available_contents_eq.
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* value.c (value_available_contents_bits_eq): Check OPTIMIZED_OUT for
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VAL1 and VAL2.
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* value.h (value_available_contents_eq): Mention optimized out values
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in function comment.
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gdb/testsuite/
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2014-06-22 Jan Kratochvil <jan.kratochvil@redhat.com>
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Fix crash on optimized-out entry data values.
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* gdb.arch/amd64-entry-value-paramref.S: New file.
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* gdb.arch/amd64-entry-value-paramref.cc: New file.
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* gdb.arch/amd64-entry-value-paramref.exp: New file.
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diff --git a/gdb/stack.c b/gdb/stack.c
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index 0d6d8e7..a0f3513 100644
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--- a/gdb/stack.c
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+++ b/gdb/stack.c
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@@ -413,6 +413,7 @@ read_frame_arg (struct symbol *sym, struct frame_info *frame,
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/* If the reference addresses match but dereferenced
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content does not match print them. */
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if (val != val_deref
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+ && !value_optimized_out (entryval_deref)
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&& value_available_contents_eq (val_deref, 0,
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entryval_deref, 0,
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TYPE_LENGTH (type_deref)))
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diff --git a/gdb/value.c b/gdb/value.c
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index 557056f..74b9d56 100644
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--- a/gdb/value.c
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+++ b/gdb/value.c
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@@ -700,6 +700,8 @@ value_available_contents_bits_eq (const struct value *val1, int offset1,
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/* See function description in value.h. */
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gdb_assert (!val1->lazy && !val2->lazy);
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+ gdb_assert (!val1->optimized_out);
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+ gdb_assert (!val2->optimized_out);
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while (length > 0)
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{
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diff --git a/gdb/value.h b/gdb/value.h
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index c2e9faf..80a2225 100644
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--- a/gdb/value.h
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+++ b/gdb/value.h
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@@ -499,7 +499,7 @@ extern void mark_value_bits_unavailable
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read it. As this routine is used by printing routines, which may
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be printing values in the value history, long after the inferior is
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gone, it works with const values. Therefore, this routine must not
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- be called with lazy values. */
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+ be called with lazy or optimized_out values. */
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extern int value_available_contents_eq (const struct value *val1, LONGEST offset1,
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const struct value *val2, LONGEST offset2,
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diff --git a/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.S b/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.S
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new file mode 100644
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index 0000000..6daee63
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--- /dev/null
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+++ b/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.S
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@@ -0,0 +1,459 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2014 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 3 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
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+
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+/* This file is compiled from gdb.arch/amd64-entry-value-paramref.cc
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+ using -g -dA -S -O2.
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+ Additionally it has been patched. */
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+
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+ .file "amd64-entry-value-paramref.cc"
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+ .text
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+.Ltext0:
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+ .p2align 4,,15
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+ .type _ZL3barRi.constprop.0, @function
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+_ZL3barRi.constprop.0:
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+.LFB2:
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+ .file 1 "gdb.arch/amd64-entry-value-paramref.cc"
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+ # gdb.arch/amd64-entry-value-paramref.cc:21
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+ .loc 1 21 0
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+ .cfi_startproc
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+.LVL0:
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+# BLOCK 2 freq:10000 seq:0
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+# PRED: ENTRY [100.0%] (FALLTHRU)
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+ # gdb.arch/amd64-entry-value-paramref.cc:23
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+ .loc 1 23 0
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+ movl vv(%rip), %eax
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+ # gdb.arch/amd64-entry-value-paramref.cc:24
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+ .loc 1 24 0
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+ movq %rdi, p(%rip)
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+ # gdb.arch/amd64-entry-value-paramref.cc:23
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+ .loc 1 23 0
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+ addl $1, %eax
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+ movl %eax, vv(%rip)
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+ # gdb.arch/amd64-entry-value-paramref.cc:25
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+ .loc 1 25 0
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+ movl (%rdi), %eax
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+# SUCC: EXIT [100.0%]
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+ # gdb.arch/amd64-entry-value-paramref.cc:26
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+ .loc 1 26 0
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+ ret
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+ .cfi_endproc
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+.LFE2:
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+ .size _ZL3barRi.constprop.0, .-_ZL3barRi.constprop.0
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+ .section .text.startup,"ax",@progbits
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+ .p2align 4,,15
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+ .globl main
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+ .type main, @function
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+main:
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+.LFB1:
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+ # gdb.arch/amd64-entry-value-paramref.cc:30
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+ .loc 1 30 0
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+ .cfi_startproc
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+# BLOCK 2 freq:10000 seq:0
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+# PRED: ENTRY [100.0%] (FALLTHRU)
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+ subq $16, %rsp
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+ .cfi_def_cfa_offset 24
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+.LBB2:
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+ # gdb.arch/amd64-entry-value-paramref.cc:32
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+ .loc 1 32 0
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+ leaq 12(%rsp), %rdi
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+ # gdb.arch/amd64-entry-value-paramref.cc:31
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+ .loc 1 31 0
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+ movl $10, 12(%rsp)
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+ # gdb.arch/amd64-entry-value-paramref.cc:32
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+ .loc 1 32 0
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+ call _ZL3barRi.constprop.0
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+.LVL1:
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+.LBE2:
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+ # gdb.arch/amd64-entry-value-paramref.cc:33
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+ .loc 1 33 0
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+ addq $16, %rsp
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+ .cfi_def_cfa_offset 8
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+# SUCC: EXIT [100.0%]
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+ ret
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+ .cfi_endproc
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+.LFE1:
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+ .size main, .-main
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+ .globl p
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+ .bss
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+ .align 8
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+ .type p, @object
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+ .size p, 8
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+p:
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+ .zero 8
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+ .globl vv
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+ .align 4
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+ .type vv, @object
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+ .size vv, 4
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+vv:
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+ .zero 4
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+ .text
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+.Letext0:
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+ .section .debug_info,"",@progbits
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+.Ldebug_info0:
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+ .long .Linfo_end - .Linfo_start # Length of Compilation Unit Info
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+.Linfo_start:
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+ .value 0x4 # DWARF version number
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+ .long .Ldebug_abbrev0 # Offset Into Abbrev. Section
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+ .byte 0x8 # Pointer Size (in bytes)
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+ .uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit)
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+ .long .LASF0 # DW_AT_producer: "GNU C++ 4.8.2 20131212 (Red Hat 4.8.2-7) -mtune=generic -march=x86-64 -g -O2"
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+ .byte 0x4 # DW_AT_language
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+ .long .LASF1 # DW_AT_name: "gdb.arch/amd64-entry-value-paramref.cc"
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+ .long .LASF2 # DW_AT_comp_dir: ""
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+ .long .Ldebug_ranges0+0 # DW_AT_ranges
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+ .quad 0 # DW_AT_low_pc
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+ .long .Ldebug_line0 # DW_AT_stmt_list
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+DIE29: .uleb128 0x2 # (DIE (0x29) DW_TAG_subprogram)
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+ .ascii "bar\0" # DW_AT_name
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
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+ .byte 0x15 # DW_AT_decl_line
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+ .long DIE45 # DW_AT_type
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+ .byte 0x1 # DW_AT_inline
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+DIE39: .uleb128 0x3 # (DIE (0x39) DW_TAG_formal_parameter)
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+ .ascii "ref\0" # DW_AT_name
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
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+ .byte 0x15 # DW_AT_decl_line
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+ .long DIE4c # DW_AT_type
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+ .byte 0 # end of children of DIE 0x29
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+DIE45: .uleb128 0x4 # (DIE (0x45) DW_TAG_base_type)
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+ .byte 0x4 # DW_AT_byte_size
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+ .byte 0x5 # DW_AT_encoding
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+ .ascii "int\0" # DW_AT_name
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+DIE4c: .uleb128 0x5 # (DIE (0x4c) DW_TAG_const_type)
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+ .long DIE51 # DW_AT_type
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+DIE51: .uleb128 0x6 # (DIE (0x51) DW_TAG_reference_type)
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+ .byte 0x8 # DW_AT_byte_size
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+ .long DIE45 # DW_AT_type
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+DIE57: .uleb128 0x7 # (DIE (0x57) DW_TAG_subprogram)
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+ .long DIE29 # DW_AT_abstract_origin
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+ .quad .LFB2 # DW_AT_low_pc
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+ .quad .LFE2-.LFB2 # DW_AT_high_pc
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+ .uleb128 0x1 # DW_AT_frame_base
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+ .byte 0x9c # DW_OP_call_frame_cfa
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+ # DW_AT_GNU_all_call_sites
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+DIE72: .uleb128 0x8 # (DIE (0x72) DW_TAG_formal_parameter)
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+ .long DIE39 # DW_AT_abstract_origin
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+ .uleb128 0x1 # DW_AT_location
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+ .byte 0x55 # DW_OP_reg5
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+ .byte 0 # end of children of DIE 0x57
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+DIE7a: .uleb128 0x9 # (DIE (0x7a) DW_TAG_subprogram)
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+ # DW_AT_external
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+ .long .LASF3 # DW_AT_name: "main"
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
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+ .byte 0x1d # DW_AT_decl_line
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+ .long DIE45 # DW_AT_type
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+ .quad .LFB1 # DW_AT_low_pc
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+ .quad .LFE1-.LFB1 # DW_AT_high_pc
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+ .uleb128 0x1 # DW_AT_frame_base
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+ .byte 0x9c # DW_OP_call_frame_cfa
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+ # DW_AT_GNU_all_call_sites
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+DIE9b: .uleb128 0xa # (DIE (0x9b) DW_TAG_lexical_block)
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+ .quad .LBB2 # DW_AT_low_pc
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+ .quad .LBE2-.LBB2 # DW_AT_high_pc
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+DIEac: .uleb128 0xb # (DIE (0xac) DW_TAG_variable)
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+ .ascii "var\0" # DW_AT_name
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
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+ .byte 0x1f # DW_AT_decl_line
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+ .long DIE45 # DW_AT_type
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+ .uleb128 0x2 # DW_AT_location
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+ .byte 0x91 # DW_OP_fbreg
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+ .sleb128 -12
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+DIEba: .uleb128 0xc # (DIE (0xba) DW_TAG_GNU_call_site)
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+ .quad .LVL1 # DW_AT_low_pc
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+ .long DIE57 # DW_AT_abstract_origin
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||
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+DIEc7: .uleb128 0xd # (DIE (0xc7) DW_TAG_GNU_call_site_parameter)
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+ .uleb128 0x1 # DW_AT_location
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||
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|
+ .byte 0x55 # DW_OP_reg5
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||
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|
+ .uleb128 0x2 # DW_AT_GNU_call_site_value
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+ .byte 0x91 # DW_OP_fbreg
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+ .sleb128 -12
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|
+#if 0
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+ .uleb128 0x1 # DW_AT_GNU_call_site_data_value
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||
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+ .byte 0x3a # DW_OP_lit10
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||
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|
+#else
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+ .uleb128 1f - 2f # DW_AT_GNU_call_site_data_value
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+2:
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+ .byte 0xf3 # DW_OP_GNU_entry_value
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+ .uleb128 1f - 3f
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+3:
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+ .byte 0x55 # DW_OP_reg5
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+1:
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+#endif
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+ .byte 0 # end of children of DIE 0xba
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+ .byte 0 # end of children of DIE 0x9b
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+ .byte 0 # end of children of DIE 0x7a
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+DIEd2: .uleb128 0xe # (DIE (0xd2) DW_TAG_variable)
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+ .ascii "vv\0" # DW_AT_name
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
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+ .byte 0x12 # DW_AT_decl_line
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+ .long DIEe6 # DW_AT_type
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+ # DW_AT_external
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+ .uleb128 0x9 # DW_AT_location
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+ .byte 0x3 # DW_OP_addr
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+ .quad vv
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+DIEe6: .uleb128 0xf # (DIE (0xe6) DW_TAG_volatile_type)
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+ .long DIE45 # DW_AT_type
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+DIEeb: .uleb128 0xe # (DIE (0xeb) DW_TAG_variable)
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+ .ascii "p\0" # DW_AT_name
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||
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+ .byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-entry-value-paramref.cc)
|
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+ .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
|
||
|
|
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
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.cc
|
||
|
|
@@ -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);
|
||
|
|
+}
|
||
|
|
diff --git a/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.exp b/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.exp
|
||
|
|
new file mode 100644
|
||
|
|
index 0000000..f06247d
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/gdb/testsuite/gdb.arch/amd64-entry-value-paramref.exp
|
||
|
|
@@ -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 .*}
|
||
|
|
|
||
|
|
--jRHKVT23PllUwdXP--
|
||
|
|
|