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PR fortran/11104 and DWARF unbound arrays detection. * dwarf2read.c (read_subrange_type): Set zero length on unspecified upper bound. Set TYPE_HIGH_BOUND_UNDEFINED if not language_ada on unspecified upper bound. * eval.c (evaluate_subexp_standard) <multi_f77_subscript>: Remove variables array_size_array, tmp_type and offset_item. New variable array. Remove call to f77_get_upperbound. New variables array_type and index. Call value_subscripted_rvalue for each dimenasion. Remove the final call to deprecated_set_value_type. gdb/testsuite/ PR fortran/11104 and DWARF unbound arrays detection. * gdb.fortran/multi-dim.exp: New file. * gdb.fortran/multi-dim.f90: New file.
This commit is contained in:
Jan Kratochvil
parent
41e8491fdf
commit
c2ff108bbd
@ -1,3 +1,16 @@
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2011-01-12 Andrew Burgess <aburgess@broadcom.com>
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Jan Kratochvil <jan.kratochvil@redhat.com>
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PR fortran/11104 and DWARF unbound arrays detection.
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* dwarf2read.c (read_subrange_type): Set zero length on unspecified
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upper bound. Set TYPE_HIGH_BOUND_UNDEFINED if not language_ada on
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unspecified upper bound.
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* eval.c (evaluate_subexp_standard) <multi_f77_subscript>: Remove
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variables array_size_array, tmp_type and offset_item. New variable
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array. Remove call to f77_get_upperbound. New variables array_type
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and index. Call value_subscripted_rvalue for each dimenasion. Remove
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the final call to deprecated_set_value_type.
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2011-01-12 Jan Kratochvil <jan.kratochvil@redhat.com>
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Make value allocations more lazy.
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@ -8192,6 +8192,11 @@ read_subrange_type (struct die_info *die, struct dwarf2_cu *cu)
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int count = dwarf2_get_attr_constant_value (attr, 1);
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high = low + count - 1;
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}
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else
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{
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/* Unspecified array length. */
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high = low - 1;
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}
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}
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/* Dwarf-2 specifications explicitly allows to create subrange types
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@ -8247,6 +8252,10 @@ read_subrange_type (struct die_info *die, struct dwarf2_cu *cu)
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if (attr && attr->form == DW_FORM_block1)
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TYPE_HIGH_BOUND_UNDEFINED (range_type) = 1;
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/* Ada expects an empty array on no boundary attributes. */
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if (attr == NULL && cu->language != language_ada)
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TYPE_HIGH_BOUND_UNDEFINED (range_type) = 1;
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name = dwarf2_name (die, cu);
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if (name)
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TYPE_NAME (range_type) = name;
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52
gdb/eval.c
52
gdb/eval.c
@ -2354,16 +2354,13 @@ evaluate_subexp_standard (struct type *expect_type,
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multi_f77_subscript:
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{
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int subscript_array[MAX_FORTRAN_DIMS];
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int array_size_array[MAX_FORTRAN_DIMS];
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LONGEST subscript_array[MAX_FORTRAN_DIMS];
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int ndimensions = 1, i;
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struct type *tmp_type;
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int offset_item; /* The array offset where the item lives. */
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struct value *array = arg1;
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if (nargs > MAX_FORTRAN_DIMS)
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error (_("Too many subscripts for F77 (%d Max)"), MAX_FORTRAN_DIMS);
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tmp_type = check_typedef (value_type (arg1));
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ndimensions = calc_f77_array_dims (type);
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if (nargs != ndimensions)
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@ -2374,59 +2371,28 @@ evaluate_subexp_standard (struct type *expect_type,
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/* Now that we know we have a legal array subscript expression
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let us actually find out where this element exists in the array. */
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offset_item = 0;
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/* Take array indices left to right. */
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for (i = 0; i < nargs; i++)
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{
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/* Evaluate each subscript; it must be a legal integer in F77. */
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arg2 = evaluate_subexp_with_coercion (exp, pos, noside);
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/* Fill in the subscript and array size arrays. */
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/* Fill in the subscript array. */
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subscript_array[i] = value_as_long (arg2);
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}
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/* Internal type of array is arranged right to left. */
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for (i = 0; i < nargs; i++)
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for (i = nargs; i > 0; i--)
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{
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upper = f77_get_upperbound (tmp_type);
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lower = f77_get_lowerbound (tmp_type);
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struct type *array_type = check_typedef (value_type (array));
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LONGEST index = subscript_array[i - 1];
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array_size_array[nargs - i - 1] = upper - lower + 1;
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/* Zero-normalize subscripts so that offsetting will work. */
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subscript_array[nargs - i - 1] -= lower;
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/* If we are at the bottom of a multidimensional
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array type then keep a ptr to the last ARRAY
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type around for use when calling value_subscript()
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below. This is done because we pretend to value_subscript
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that we actually have a one-dimensional array
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of base element type that we apply a simple
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offset to. */
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if (i < nargs - 1)
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tmp_type = check_typedef (TYPE_TARGET_TYPE (tmp_type));
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lower = f77_get_lowerbound (array_type);
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array = value_subscripted_rvalue (array, index, lower);
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}
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/* Now let us calculate the offset for this item. */
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offset_item = subscript_array[ndimensions - 1];
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for (i = ndimensions - 1; i > 0; --i)
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offset_item =
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array_size_array[i - 1] * offset_item + subscript_array[i - 1];
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/* Let us now play a dirty trick: we will take arg1
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which is a value node pointing to the topmost level
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of the multidimensional array-set and pretend
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that it is actually a array of the final element
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type, this will ensure that value_subscript()
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returns the correct type value. */
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deprecated_set_value_type (arg1, tmp_type);
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return value_subscripted_rvalue (arg1, offset_item, 0);
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return array;
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}
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case BINOP_LOGICAL_AND:
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@ -1,3 +1,10 @@
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2011-01-12 Andrew Burgess <aburgess@broadcom.com>
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Jan Kratochvil <jan.kratochvil@redhat.com>
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PR fortran/11104 and DWARF unbound arrays detection.
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* gdb.fortran/multi-dim.exp: New file.
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* gdb.fortran/multi-dim.f90: New file.
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2011-01-12 Andrew Burgess <aburgess@broadcom.com>
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* gdb.mi/mi-disassemble.exp, gdb.mi/mi2-disassemble.exp: Update
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77
gdb/testsuite/gdb.fortran/multi-dim.exp
Normal file
77
gdb/testsuite/gdb.fortran/multi-dim.exp
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@ -0,0 +1,77 @@
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# Copyright 2011 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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# This file is part of the gdb testsuite. It contains tests for evaluating
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# Fortran subarray expression.
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if { [skip_fortran_tests] } { return -1 }
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set testfile "multi-dim"
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set srcfile ${testfile}.f90
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if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} {debug f77}] } {
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return -1
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}
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if ![runto MAIN__] {
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perror "Couldn't run to MAIN__"
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continue
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}
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# Depending on the compiler version being used, the name of the 4-byte integer
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# and real types can be printed differently. For instance, gfortran-4.1 uses
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# "int4" whereas gfortran-4.3 uses "int(kind=4)".
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set int4 "(int4|integer\\(kind=4\\))"
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gdb_breakpoint [gdb_get_line_number "break-static"]
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gdb_continue_to_breakpoint "break-static" ".*break-static.*"
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gdb_test "print foo(2,3,4)" \
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" = 20" \
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"print valid static array element"
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gdb_test "print foo(0,0,0)" \
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"no such vector element" \
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"print an invalid array index (0,0,0)"
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gdb_test "print foo(2,3,5)" \
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"no such vector element" \
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"print an invalid array index (2,3,5)"
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gdb_test "print foo(2,4,4)" \
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"no such vector element" \
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"print an invalid array index (2,4,4)"
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gdb_test "print foo(3,3,4)" \
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"no such vector element" \
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"print an invalid array index (3,3,4)"
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gdb_test "print foo" \
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{ = \(\( \( 10, 10\) \( 10, 10\) \( 10, 10\) \) \( \( 10, 10\) \( 10, 10\) \( 10, 10\) \) \( \( 10, 10\) \( 10, 10\) \( 10, 10\) \) \( \( 10, 10\) \( 10, 10\) \( 10, 20\) \) \)} \
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"print full contents of the array"
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gdb_breakpoint [gdb_get_line_number "break-variable"]
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gdb_continue_to_breakpoint "break-variable" ".*break-variable.*"
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gdb_test "print varbound(4)" \
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" = 2" \
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"print valid variable bound array element"
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gdb_test "ptype unbound" \
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"type = $int4 \\(\\*\\)" \
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"print type of unbound array"
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gdb_test "print unbound(4)" \
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" = 2" \
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"print valid unbound array element"
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29
gdb/testsuite/gdb.fortran/multi-dim.f90
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29
gdb/testsuite/gdb.fortran/multi-dim.f90
Normal file
@ -0,0 +1,29 @@
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! Copyright 2011 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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program test
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integer :: foo (2, 3, 4)
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integer :: singledim (4)
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foo (:, :, :) = 10
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foo (2, 3, 4) = 20
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foo (2, 3, 4) = 20 ! break-static
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singledim (:) = 1
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singledim (4) = 2
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call sub (singledim, 4, singledim)
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end
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subroutine sub (varbound, n, unbound)
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integer :: n, varbound (n), unbound (*)
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varbound (4) = unbound (4) ! break-variable
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end
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