+2013-07-30 Andrew Burgess <aburgess@broadcom.com>
+
+ * value.c (value_fetch_lazy): Ensure parent value is not lazy
+ before checking which bits of the parent, not the child, value are
+ valid.
+
2013-07-30 Muhammad Bilal <mbilal@codesorcery.com>
PR gdb/15715
+2013-07-30 Andrew Burgess <aburgess@broadcom.com>
+
+ * gdb.dwarf2/pieces-optimized-out.exp: New file.
+ * gdb.dwarf2/pieces-optimized-out.c: New file.
+ * gdb.dwarf2/pieces-optimized-out.S: New file.
+
2013-07-30 Muhammad Bilal <mbilal@codesourcery.com>
PR gdb/15715
--- /dev/null
+/*
+ Copyright 2010-2013 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 was compiled with gcc version 4.7.2 using:
+ gcc -O3 -m32 -g -o pieces-optimized-out.S -S pieces-optimized-out.c
+ The contents of this file are otherwise unmodified. */
+
+ .file "pieces-optimized-out.c"
+ .text
+.Ltext0:
+ .p2align 4,,15
+ .globl foo
+ .type foo, @function
+foo:
+.LFB0:
+ .file 1 "pieces-optimized-out.c"
+ .loc 1 33 0
+.LVL0:
+ .loc 1 35 0
+ movl 4(%esp), %eax
+ ret
+.LFE0:
+ .size foo, .-foo
+ .section .text.startup,"ax",@progbits
+ .p2align 4,,15
+ .globl main
+ .type main, @function
+main:
+.LFB1:
+ .loc 1 39 0
+.LVL1:
+ subl $4, %esp
+.LCFI0:
+ .loc 1 44 0
+ movl $10, (%esp)
+ call foo
+.LVL2:
+ .loc 1 46 0
+ addl $4, %esp
+.LCFI1:
+ .loc 1 45 0
+ addl $20, %eax
+.LVL3:
+ .loc 1 46 0
+ ret
+.LFE1:
+ .size main, .-main
+ .section .debug_frame,"",@progbits
+.Lframe0:
+ .long .LECIE0-.LSCIE0
+.LSCIE0:
+ .long 0xffffffff
+ .byte 0x1
+ .string ""
+ .uleb128 0x1
+ .sleb128 -4
+ .byte 0x8
+ .byte 0xc
+ .uleb128 0x4
+ .uleb128 0x4
+ .byte 0x88
+ .uleb128 0x1
+ .align 4
+.LECIE0:
+.LSFDE0:
+ .long .LEFDE0-.LASFDE0
+.LASFDE0:
+ .long .Lframe0
+ .long .LFB0
+ .long .LFE0-.LFB0
+ .align 4
+.LEFDE0:
+.LSFDE2:
+ .long .LEFDE2-.LASFDE2
+.LASFDE2:
+ .long .Lframe0
+ .long .LFB1
+ .long .LFE1-.LFB1
+ .byte 0x4
+ .long .LCFI0-.LFB1
+ .byte 0xe
+ .uleb128 0x8
+ .byte 0x4
+ .long .LCFI1-.LCFI0
+ .byte 0xe
+ .uleb128 0x4
+ .align 4
+.LEFDE2:
+ .section .eh_frame,"a",@progbits
+.Lframe1:
+ .long .LECIE1-.LSCIE1
+.LSCIE1:
+ .long 0
+ .byte 0x1
+ .string ""
+ .uleb128 0x1
+ .sleb128 -4
+ .byte 0x8
+ .byte 0xc
+ .uleb128 0x4
+ .uleb128 0x4
+ .byte 0x88
+ .uleb128 0x1
+ .align 4
+.LECIE1:
+.LSFDE5:
+ .long .LEFDE5-.LASFDE5
+.LASFDE5:
+ .long .LASFDE5-.Lframe1
+ .long .LFB0
+ .long .LFE0-.LFB0
+ .align 4
+.LEFDE5:
+.LSFDE7:
+ .long .LEFDE7-.LASFDE7
+.LASFDE7:
+ .long .LASFDE7-.Lframe1
+ .long .LFB1
+ .long .LFE1-.LFB1
+ .byte 0x4
+ .long .LCFI0-.LFB1
+ .byte 0xe
+ .uleb128 0x8
+ .byte 0x4
+ .long .LCFI1-.LCFI0
+ .byte 0xe
+ .uleb128 0x4
+ .align 4
+.LEFDE7:
+ .text
+.Letext0:
+ .section .debug_info,"",@progbits
+.Ldebug_info0:
+ .long 0xe4
+ .value 0x2
+ .long .Ldebug_abbrev0
+ .byte 0x4
+ .uleb128 0x1
+ .long .LASF0
+ .byte 0x1
+ .long .LASF1
+ .long .LASF2
+ .long .Ldebug_ranges0+0
+ .long 0
+ .long 0
+ .long .Ldebug_line0
+ .uleb128 0x2
+ .string "str"
+ .byte 0xc
+ .byte 0x1
+ .byte 0x17
+ .long 0x6c
+ .uleb128 0x3
+ .string "a"
+ .byte 0x1
+ .byte 0x19
+ .long 0x6c
+ .byte 0x2
+ .byte 0x23
+ .uleb128 0
+ .uleb128 0x3
+ .string "b"
+ .byte 0x1
+ .byte 0x1a
+ .long 0x6c
+ .byte 0x2
+ .byte 0x23
+ .uleb128 0x4
+ .uleb128 0x4
+ .string "c"
+ .byte 0x1
+ .byte 0x1b
+ .long 0x6c
+ .byte 0x4
+ .byte 0x3
+ .byte 0x1d
+ .byte 0x2
+ .byte 0x23
+ .uleb128 0x8
+ .uleb128 0x4
+ .string "d"
+ .byte 0x1
+ .byte 0x1c
+ .long 0x6c
+ .byte 0x4
+ .byte 0x3
+ .byte 0x1a
+ .byte 0x2
+ .byte 0x23
+ .uleb128 0x8
+ .byte 0
+ .uleb128 0x5
+ .byte 0x4
+ .byte 0x5
+ .string "int"
+ .uleb128 0x6
+ .byte 0x1
+ .string "foo"
+ .byte 0x1
+ .byte 0x20
+ .byte 0x1
+ .long 0x6c
+ .long .LFB0
+ .long .LFE0
+ .byte 0x2
+ .byte 0x74
+ .sleb128 4
+ .byte 0x1
+ .long 0x9f
+ .uleb128 0x7
+ .string "arg"
+ .byte 0x1
+ .byte 0x20
+ .long 0x6c
+ .byte 0x2
+ .byte 0x91
+ .sleb128 0
+ .byte 0
+ .uleb128 0x8
+ .byte 0x1
+ .long .LASF3
+ .byte 0x1
+ .byte 0x26
+ .byte 0x1
+ .long 0x6c
+ .long .LFB1
+ .long .LFE1
+ .long .LLST0
+ .byte 0x1
+ .uleb128 0x9
+ .string "s"
+ .byte 0x1
+ .byte 0x28
+ .long 0x29
+ .byte 0x6
+ .byte 0x35
+ .byte 0x9f
+ .byte 0x93
+ .uleb128 0x4
+ .byte 0x93
+ .uleb128 0x8
+ .uleb128 0xa
+ .string "v"
+ .byte 0x1
+ .byte 0x29
+ .long 0x6c
+ .long .LLST1
+ .uleb128 0xb
+ .long .LVL2
+ .long 0x73
+ .uleb128 0xc
+ .byte 0x2
+ .byte 0x74
+ .sleb128 0
+ .byte 0x1
+ .byte 0x3a
+ .byte 0
+ .byte 0
+ .byte 0
+ .section .debug_abbrev,"",@progbits
+.Ldebug_abbrev0:
+ .uleb128 0x1
+ .uleb128 0x11
+ .byte 0x1
+ .uleb128 0x25
+ .uleb128 0xe
+ .uleb128 0x13
+ .uleb128 0xb
+ .uleb128 0x3
+ .uleb128 0xe
+ .uleb128 0x1b
+ .uleb128 0xe
+ .uleb128 0x55
+ .uleb128 0x6
+ .uleb128 0x11
+ .uleb128 0x1
+ .uleb128 0x52
+ .uleb128 0x1
+ .uleb128 0x10
+ .uleb128 0x6
+ .byte 0
+ .byte 0
+ .uleb128 0x2
+ .uleb128 0x13
+ .byte 0x1
+ .uleb128 0x3
+ .uleb128 0x8
+ .uleb128 0xb
+ .uleb128 0xb
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x1
+ .uleb128 0x13
+ .byte 0
+ .byte 0
+ .uleb128 0x3
+ .uleb128 0xd
+ .byte 0
+ .uleb128 0x3
+ .uleb128 0x8
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0x38
+ .uleb128 0xa
+ .byte 0
+ .byte 0
+ .uleb128 0x4
+ .uleb128 0xd
+ .byte 0
+ .uleb128 0x3
+ .uleb128 0x8
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0xb
+ .uleb128 0xb
+ .uleb128 0xd
+ .uleb128 0xb
+ .uleb128 0xc
+ .uleb128 0xb
+ .uleb128 0x38
+ .uleb128 0xa
+ .byte 0
+ .byte 0
+ .uleb128 0x5
+ .uleb128 0x24
+ .byte 0
+ .uleb128 0xb
+ .uleb128 0xb
+ .uleb128 0x3e
+ .uleb128 0xb
+ .uleb128 0x3
+ .uleb128 0x8
+ .byte 0
+ .byte 0
+ .uleb128 0x6
+ .uleb128 0x2e
+ .byte 0x1
+ .uleb128 0x3f
+ .uleb128 0xc
+ .uleb128 0x3
+ .uleb128 0x8
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x27
+ .uleb128 0xc
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0x11
+ .uleb128 0x1
+ .uleb128 0x12
+ .uleb128 0x1
+ .uleb128 0x40
+ .uleb128 0xa
+ .uleb128 0x2117
+ .uleb128 0xc
+ .uleb128 0x1
+ .uleb128 0x13
+ .byte 0
+ .byte 0
+ .uleb128 0x7
+ .uleb128 0x5
+ .byte 0
+ .uleb128 0x3
+ .uleb128 0x8
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0x2
+ .uleb128 0xa
+ .byte 0
+ .byte 0
+ .uleb128 0x8
+ .uleb128 0x2e
+ .byte 0x1
+ .uleb128 0x3f
+ .uleb128 0xc
+ .uleb128 0x3
+ .uleb128 0xe
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x27
+ .uleb128 0xc
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0x11
+ .uleb128 0x1
+ .uleb128 0x12
+ .uleb128 0x1
+ .uleb128 0x40
+ .uleb128 0x6
+ .uleb128 0x2117
+ .uleb128 0xc
+ .byte 0
+ .byte 0
+ .uleb128 0x9
+ .uleb128 0x34
+ .byte 0
+ .uleb128 0x3
+ .uleb128 0x8
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0x2
+ .uleb128 0xa
+ .byte 0
+ .byte 0
+ .uleb128 0xa
+ .uleb128 0x34
+ .byte 0
+ .uleb128 0x3
+ .uleb128 0x8
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0x2
+ .uleb128 0x6
+ .byte 0
+ .byte 0
+ .uleb128 0xb
+ .uleb128 0x4109
+ .byte 0x1
+ .uleb128 0x11
+ .uleb128 0x1
+ .uleb128 0x31
+ .uleb128 0x13
+ .byte 0
+ .byte 0
+ .uleb128 0xc
+ .uleb128 0x410a
+ .byte 0
+ .uleb128 0x2
+ .uleb128 0xa
+ .uleb128 0x2111
+ .uleb128 0xa
+ .byte 0
+ .byte 0
+ .byte 0
+ .section .debug_loc,"",@progbits
+.Ldebug_loc0:
+.LLST0:
+ .long .LFB1
+ .long .LCFI0
+ .value 0x2
+ .byte 0x74
+ .sleb128 4
+ .long .LCFI0
+ .long .LCFI1
+ .value 0x2
+ .byte 0x74
+ .sleb128 8
+ .long .LCFI1
+ .long .LFE1
+ .value 0x2
+ .byte 0x74
+ .sleb128 4
+ .long 0
+ .long 0
+.LLST1:
+ .long .LVL1
+ .long .LVL2
+ .value 0x2
+ .byte 0x3a
+ .byte 0x9f
+ .long .LVL2
+ .long .LVL3
+ .value 0x3
+ .byte 0x70
+ .sleb128 10
+ .byte 0x9f
+ .long .LVL3
+ .long .LFE1
+ .value 0x3
+ .byte 0x70
+ .sleb128 -10
+ .byte 0x9f
+ .long 0
+ .long 0
+ .section .debug_aranges,"",@progbits
+ .long 0x24
+ .value 0x2
+ .long .Ldebug_info0
+ .byte 0x4
+ .byte 0
+ .value 0
+ .value 0
+ .long .Ltext0
+ .long .Letext0-.Ltext0
+ .long .LFB1
+ .long .LFE1-.LFB1
+ .long 0
+ .long 0
+ .section .debug_ranges,"",@progbits
+.Ldebug_ranges0:
+ .long .Ltext0
+ .long .Letext0
+ .long .LFB1
+ .long .LFE1
+ .long 0
+ .long 0
+ .section .debug_line,"",@progbits
+.Ldebug_line0:
+ .section .debug_str,"MS",@progbits,1
+.LASF2:
+ .string "/home/username/"
+.LASF1:
+ .string "pieces-optimized-out.c"
+.LASF0:
+ .string "GNU C 4.7.2"
+.LASF3:
+ .string "main"
+ .ident "GCC: (GNU) 4.7.2"
+ .section .note.GNU-stack,"",@progbits
--- /dev/null
+/* Copyright (C) 2013 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ 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 not actually compiled, the .S file is committed alongside
+ this file. The reason is that changes to the compiler might result
+ in different debug information being created, this could break the
+ test. */
+
+struct str
+{
+ int a;
+ int b;
+ int c : 3;
+ int d : 3;
+};
+
+int __attribute__ ((noinline))
+foo (int arg)
+{
+ return arg;
+}
+
+int
+main ( void )
+{
+ struct str s = {5, 7, 1, 2};
+ int v;
+
+ v = (s.a << 1);
+ v += foo (v);
+ return v + 5 + s.a;
+}
+
--- /dev/null
+# Copyright 2013 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+load_lib dwarf.exp
+# Test some DWARF piece operators.
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+if {![dwarf2_support]} {
+ return 0
+}
+# This test can only be run on x86 targets.
+if {![is_x86_like_target]} {
+ return 0
+}
+
+standard_testfile .S
+set csrcfile ${testfile}.c
+
+if {[prepare_for_testing ${testfile}.exp ${testfile} $srcfile]} {
+ return -1
+}
+
+if ![runto foo] {
+ return -1
+}
+
+# Move back up to main.
+gdb_test "up" "#1 $hex in main.*" "move up a frame"
+
+# Now take a look at the 's' structure.
+gdb_test "p s" \
+ " = {a = 5, b = <optimized out>, c = <optimized out>, d = <optimized out>}" \
+ "print s"
+gdb_test "p s.a" " = 5" "print s.a"
+gdb_test "p s.b" " = <optimized out>" "print s.b"
+gdb_test "p s.c" "value has been optimized out" "print s.c"
+gdb_test "p s.d" "value has been optimized out" "print s.d"
+
LONGEST offset = value_offset (val);
LONGEST num;
- if (!value_bits_valid (val,
+ if (value_lazy (parent))
+ value_fetch_lazy (parent);
+
+ if (!value_bits_valid (parent,
TARGET_CHAR_BIT * offset + value_bitpos (val),
value_bitsize (val)))
error (_("value has been optimized out"));
projects / deliverable / binutils-gdb.git / commitdiff
