Fix read_frame_arg for optimized-out entry values.
authorJan Kratochvil <jan.kratochvil@redhat.com>
Tue, 22 Jul 2014 20:09:35 +0000 (22:09 +0200)
committerJan Kratochvil <jan.kratochvil@redhat.com>
Tue, 22 Jul 2014 20:09:35 +0000 (22:09 +0200)
gdb/
2014-07-22  Jan Kratochvil  <jan.kratochvil@redhat.com>

* stack.c (read_frame_arg): Verify value_optimized_out before calling
value_available_contents_eq.

gdb/testsuite/
2014-07-22  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.

Message-ID: <20140720150727.GA18488@host2.jankratochvil.net>
Message-ID: <20140711153757.GA452@host2.jankratochvil.net>

gdb/ChangeLog
gdb/stack.c
gdb/testsuite/ChangeLog
gdb/testsuite/gdb.arch/amd64-entry-value-paramref.S [new file with mode: 0644]
gdb/testsuite/gdb.arch/amd64-entry-value-paramref.cc [new file with mode: 0644]
gdb/testsuite/gdb.arch/amd64-entry-value-paramref.exp [new file with mode: 0644]
gdb/testsuite/gdb.arch/amd64-optimout-repeat.S [new file with mode: 0644]
gdb/testsuite/gdb.arch/amd64-optimout-repeat.c [new file with mode: 0644]
gdb/testsuite/gdb.arch/amd64-optimout-repeat.exp [new file with mode: 0644]

index 6ce1e52..73a13d3 100644 (file)
@@ -1,3 +1,8 @@
+2014-07-22  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+       * stack.c (read_frame_arg): Verify value_optimized_out before calling
+       value_available_contents_eq.
+
 2014-07-22  Pedro Alves  <palves@redhat.com>
 
        * value.c (allocate_optimized_out_value): Don't mark value as
index 0d6d8e7..4db5df5 100644 (file)
@@ -413,6 +413,8 @@ 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 (val_deref)
+                         && !value_optimized_out (entryval_deref)
                          && value_available_contents_eq (val_deref, 0,
                                                          entryval_deref, 0,
                                                      TYPE_LENGTH (type_deref)))
index d9c420e..f534f18 100644 (file)
@@ -1,3 +1,12 @@
+2014-07-22  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.
+
 2014-07-17  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
        PR gdb/17170
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 (file)
index 0000000..a1e9d0a
--- /dev/null
@@ -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
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 (file)
index 0000000..aa473a3
--- /dev/null
@@ -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 (file)
index 0000000..f06247d
--- /dev/null
@@ -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 .*}
diff --git a/gdb/testsuite/gdb.arch/amd64-optimout-repeat.S b/gdb/testsuite/gdb.arch/amd64-optimout-repeat.S
new file mode 100644 (file)
index 0000000..2f8f4d2
--- /dev/null
@@ -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 (file)
index 0000000..a32b6de
--- /dev/null
@@ -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 (file)
index 0000000..f3c93a4
--- /dev/null
@@ -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>}}}