f30b8b38d4
Consider the following code:
type Element is abstract tagged null record;
type GADataType is interface;
type Data_Type is new Element and GADataType with record
I : Integer := 42;
end record;
Result1 : Data_Type;
GGG1 : GADataType'Class := GADataType'Class (Result1);
When trying to create a varobj for variable ggg1, GDB currently
returns an object which has no child:
-var-create ggg1 * ggg1
^done,name="ggg1",numchild="0",[...]
This is incorrect, it should return an object which has one child
(field "i"). This is because tagged-type objects are dynamic, and
we need to apply a small transformation in order to get their actual
type. This is already done on the GDB/CLI side in ada-valprint,
and it needs to be done on the ada-varobj side as well.
gdb/ChangeLog:
* ada-varobj.c (ada_varobj_adjust_for_child_access): Convert
tagged type objects to their actual type.
gdb/testsuite/ChangeLog:
* gdb.ada/mi_interface: New testcase.
52 lines
1.6 KiB
Text
52 lines
1.6 KiB
Text
# Copyright 2014 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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load_lib "ada.exp"
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standard_ada_testfile foo
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if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug additional_flags=-gnat12 ]] != "" } {
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return -1
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}
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load_lib mi-support.exp
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set MIFLAGS "-i=mi"
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gdb_exit
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if [mi_gdb_start] {
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continue
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}
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mi_delete_breakpoints
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mi_gdb_reinitialize_dir $srcdir/$subdir
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mi_gdb_load ${binfile}
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if ![mi_run_to_main] then {
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fail "Cannot run to main, testcase aborted"
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return 0
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}
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set bp_location [gdb_get_line_number "BREAK" ${testdir}/foo.adb]
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mi_continue_to_line \
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"foo.adb:$bp_location" \
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"stop at start of main Ada procedure"
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mi_gdb_test "-var-create ggg1 * ggg1" \
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"\\^done,name=\"ggg1\",numchild=\"1\",value=\"{...}\",type=\"<ref> pck.gadatatype\",has_more=\"0\"" \
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"Create ggg1 varobj"
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mi_gdb_test "-var-list-children 1 ggg1" \
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"\\^done,numchild=\"1\",children=\\\[child={name=\"ggg1.i\",exp=\"i\",numchild=\"0\",value=\"42\",type=\"integer\"}\\\],has_more=\"0\"" \
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"list ggg1's children"
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