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gdb/
Fix GDB crash on inferior calls with self-referencing classes. * gnu-v3-abi.c (gnuv3_pass_by_reference): Do not call itself on static member fields. gdb/testsuite/ Fix GDB crash on inferior calls with self-referencing classes. * gdb.dwarf2/dw2-cp-infcall-ref-static.exp: New file. * gdb.dwarf2/dw2-cp-infcall-ref-static-main.c: New file. * gdb.dwarf2/dw2-cp-infcall-ref-static.S: New file.
This commit is contained in:
Jan Kratochvil
@ -1,3 +1,9 @@
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2010-09-29 Jan Kratochvil <jan.kratochvil@redhat.com>
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Fix GDB crash on inferior calls with self-referencing classes.
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* gnu-v3-abi.c (gnuv3_pass_by_reference): Do not call itself on static
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member fields.
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2010-09-29 Doug Evans <dje@google.com>
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2010-09-29 Doug Evans <dje@google.com>
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Workaround for gcc/45682.
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Workaround for gcc/45682.
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@ -835,9 +835,10 @@ gnuv3_pass_by_reference (struct type *type)
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by reference, so does this class. Similarly for members, which
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by reference, so does this class. Similarly for members, which
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are constructed whenever this class is. We do not need to worry
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are constructed whenever this class is. We do not need to worry
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about recursive loops here, since we are only looking at members
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about recursive loops here, since we are only looking at members
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of complete class type. */
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of complete class type. Also ignore any static members. */
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for (fieldnum = 0; fieldnum < TYPE_NFIELDS (type); fieldnum++)
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for (fieldnum = 0; fieldnum < TYPE_NFIELDS (type); fieldnum++)
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if (gnuv3_pass_by_reference (TYPE_FIELD_TYPE (type, fieldnum)))
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if (! field_is_static (&TYPE_FIELD (type, fieldnum))
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&& gnuv3_pass_by_reference (TYPE_FIELD_TYPE (type, fieldnum)))
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return 1;
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return 1;
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return 0;
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return 0;
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@ -1,3 +1,10 @@
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2010-09-29 Jan Kratochvil <jan.kratochvil@redhat.com>
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Fix GDB crash on inferior calls with self-referencing classes.
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* gdb.dwarf2/dw2-cp-infcall-ref-static.exp: New file.
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* gdb.dwarf2/dw2-cp-infcall-ref-static-main.c: New file.
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* gdb.dwarf2/dw2-cp-infcall-ref-static.S: New file.
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2010-09-24 Jan Kratochvil <jan.kratochvil@redhat.com>
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2010-09-24 Jan Kratochvil <jan.kratochvil@redhat.com>
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Fix lost siginfo_t for inferior calls.
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Fix lost siginfo_t for inferior calls.
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51
gdb/testsuite/gdb.dwarf2/dw2-cp-infcall-ref-static-main.c
Normal file
51
gdb/testsuite/gdb.dwarf2/dw2-cp-infcall-ref-static-main.c
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@ -0,0 +1,51 @@
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2010 Free Software Foundation, Inc.
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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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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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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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/* class C
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{
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public:
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static C s;
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};
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C C::s;
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C f()
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{
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return C::s;
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} */
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asm (".globl cu_text_start");
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asm ("cu_text_start:");
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asm (".globl f_start");
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asm ("f_start:");
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void
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f (void)
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{
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}
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asm (".globl f_end");
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asm ("f_end:");
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int
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main (void)
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{
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f ();
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return 0;
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}
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asm (".globl cu_text_end");
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asm ("cu_text_end:");
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115
gdb/testsuite/gdb.dwarf2/dw2-cp-infcall-ref-static.S
Normal file
115
gdb/testsuite/gdb.dwarf2/dw2-cp-infcall-ref-static.S
Normal file
@ -0,0 +1,115 @@
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2010 Free Software Foundation, Inc.
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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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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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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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/* Debug information */
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.section .debug_info
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.Lcu1_begin:
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/* CU header */
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.4byte .Lcu1_end - .Lcu1_start /* Length of Compilation Unit */
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.Lcu1_start:
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.2byte 2 /* DWARF Version */
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.4byte .Labbrev1_begin /* Offset into abbrev section */
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.byte 4 /* Pointer size */
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/* CU die */
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.uleb128 1 /* Abbrev: DW_TAG_compile_unit */
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.4byte cu_text_start /* DW_AT_low_pc */
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.4byte cu_text_end /* DW_AT_high_pc */
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.ascii "file1.txt\0" /* DW_AT_name */
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.ascii "GNU C 3.3.3\0" /* DW_AT_producer */
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.byte 4 /* DW_AT_language (DW_LANG_C_plus_plus) */
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.Ltype_class:
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.uleb128 3 /* Abbrev: DW_TAG_class_type */
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.ascii "C\0" /* DW_AT_name */
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.uleb128 4 /* Abbrev: DW_TAG_member */
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.ascii "s\0" /* DW_AT_name */
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.4byte .Ltype_class-.Lcu1_begin /* DW_AT_type */
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.byte 1 /* DW_AT_declaration */
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.byte 1 /* DW_AT_external */
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.byte 0 /* End of children of DW_TAG_class_type */
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.uleb128 5 /* Abbrev: DW_TAG_subprogram */
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.ascii "f\0" /* DW_AT_name */
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.4byte .Ltype_class-.Lcu1_begin /* DW_AT_type */
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.4byte f_start /* DW_AT_low_pc */
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.4byte f_end /* DW_AT_high_pc */
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.byte 0 /* End of children of CU */
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.Lcu1_end:
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/* Abbrev table */
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.section .debug_abbrev
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.Labbrev1_begin:
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.uleb128 1 /* Abbrev code */
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.uleb128 0x11 /* DW_TAG_compile_unit */
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.byte 1 /* has_children */
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.uleb128 0x11 /* DW_AT_low_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x12 /* DW_AT_high_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x25 /* DW_AT_producer */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x13 /* DW_AT_language */
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.uleb128 0xb /* DW_FORM_data1 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 3 /* Abbrev code */
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.uleb128 0x2 /* DW_TAG_class_type */
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.byte 1 /* has_children */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 4 /* Abbrev code */
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.uleb128 0xd /* DW_TAG_member */
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.byte 0 /* has_children */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x49 /* DW_AT_type */
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.uleb128 0x13 /* DW_FORM_ref4 */
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.uleb128 0x3c /* DW_AT_declaration */
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.uleb128 0xc /* DW_FORM_flag */
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.uleb128 0x3f /* DW_AT_external */
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.uleb128 0xc /* DW_FORM_flag */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 5 /* Abbrev code */
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.uleb128 0x2e /* DW_TAG_subprogram */
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.byte 0 /* has_children */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x49 /* DW_AT_type */
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.uleb128 0x13 /* DW_FORM_ref4 */
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.uleb128 0x11 /* DW_AT_low_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x12 /* DW_AT_high_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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49
gdb/testsuite/gdb.dwarf2/dw2-cp-infcall-ref-static.exp
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49
gdb/testsuite/gdb.dwarf2/dw2-cp-infcall-ref-static.exp
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@ -0,0 +1,49 @@
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# Copyright 2010 Free Software Foundation, Inc.
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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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# Check that GDB can call C++ functions whose parameters or return values have
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# type containing a static member of the same type.
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# Still no C++ compiler is used.
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if { [skip_cplus_tests] } { continue }
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# This test can only be run on targets which support DWARF-2 and use gas.
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# For now pick a sampling of likely targets.
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if {![istarget *-*-linux*]
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&& ![istarget *-*-gnu*]
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&& ![istarget *-*-elf*]
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&& ![istarget *-*-openbsd*]
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&& ![istarget arm-*-eabi*]
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&& ![istarget powerpc-*-eabi*]} {
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return 0
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}
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set testfile "dw2-cp-infcall-ref-static"
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if { [prepare_for_testing ${testfile}.exp ${testfile} [list ${testfile}-main.c ${testfile}.S] {}] } {
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return -1
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}
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if ![runto_main] then {
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return -1
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}
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# main is not provided by DWARF.
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gdb_test_no_output "set language c++"
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# There are no mangled names in DWARF to suggest the v3 ABI.
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gdb_test_no_output "set cp-abi gnu-v3"
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# GDB could crash. There is no DW_AT_location so it is <optimized out>.
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gdb_test "p f()" { = {static s = <optimized out>}}
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