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Support constant DW_AT_data_member_location by GCC PR debug/40659. * dwarf2read.c (dwarf2_add_field <DW_TAG_member> <DW_AT_data_member_location>): Initialize BYTE_OFFSET to 0 by default. Explicitly check if attr_form_is_block. (dwarf2_add_field <DW_TAG_inheritance> <DW_AT_data_member_location>) (read_common_block <DW_AT_data_member_location>): New variable byte_offset. Fix crash on non-DW_BLOCK ATTR values. gdb/testsuite/ Support constant DW_AT_data_member_location by GCC PR debug/40659. * gdb.dwarf2/dw2-inheritance.exp, gdb.dwarf2/dw2-inheritance.S: New.gdb_7_0-branch
Jan Kratochvil
17 years ago
5 changed files with 185 additions and 10 deletions
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/* This testcase is part of GDB, the GNU debugger. |
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Copyright 2009 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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/* Test DW_TAG_inheritance using constant DW_AT_data_member_location |
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introduced by GCC PR debug/40659. */ |
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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 .Lline1_begin /* DW_AT_stmt_list */ |
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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_LANG_C_plus_plus (C++) */ |
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.Lbase: |
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.uleb128 3 /* Abbrev: DW_TAG_class_type */ |
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.ascii "base\0" /* DW_AT_name */ |
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.byte 4 /* DW_AT_byte_size */ |
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.byte 0 /* End of children of "base" */ |
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.uleb128 3 /* Abbrev: DW_TAG_class_type */ |
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.ascii "inherited\0" /* DW_AT_name */ |
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.byte 8 /* DW_AT_byte_size */ |
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.uleb128 2 /* Abbrev: DW_TAG_inheritance */ |
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.4byte .Lbase-.Lcu1_begin /* DW_AT_type */ |
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.byte 0 /* DW_AT_data_member_location */ |
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.byte 0 /* End of children of "inherited" */ |
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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 0x10 /* DW_AT_stmt_list */ |
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.uleb128 0x6 /* DW_FORM_data4 */ |
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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 2 /* Abbrev code */ |
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.uleb128 0x1c /* DW_TAG_inheritance */ |
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.byte 0 /* has_children */ |
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.uleb128 0x49 /* DW_AT_type */ |
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.uleb128 0x13 /* DW_FORM_ref4 */ |
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.uleb128 0x38 /* DW_AT_data_member_location */ |
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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 0x02 /* 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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.uleb128 0xb /* DW_AT_byte_size */ |
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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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.byte 0x0 /* Terminator */ |
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.byte 0x0 /* Terminator */ |
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# Copyright 2009 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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# Test DW_TAG_inheritance using constant DW_AT_data_member_location |
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# introduced by GCC PR debug/40659. |
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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-inheritance" |
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set srcfile ${testfile}.S |
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set executable ${testfile}.x |
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${objdir}/${subdir}/${executable}" object {nodebug}] != "" } { |
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return -1 |
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} |
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clean_restart $executable |
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gdb_test "ptype inherited" "type = class inherited .*" |
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