Use the correct frame when evaluating a dynamic property
The test case in this patch shows an unusual situation: an Ada array has a dynamic bound, but the bound comes from a frame that's referred to by the static link. This frame is correctly found when evaluating the array variable itself, but is lost when evaluating the array's bounds. This patch fixes the problem by passing this frame through to value_at_lazy in the DWARF expression evaluator.
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@ -1005,8 +1005,8 @@ dwarf_expr_context::fetch_result (struct type *type, struct type *subobj_type,
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}
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address = value_as_address (value_from_pointer (ptr_type, address));
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retval = value_at_lazy (subobj_type,
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address + subobj_offset);
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retval = value_at_lazy (subobj_type, address + subobj_offset,
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m_frame);
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if (in_stack_memory)
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retval->set_stack (true);
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}
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33
gdb/testsuite/gdb.ada/static-link.exp
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33
gdb/testsuite/gdb.ada/static-link.exp
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@ -0,0 +1,33 @@
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# Copyright 2023 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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require allow_ada_tests
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standard_ada_testfile prog
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if {[gdb_compile_ada "${srcfile}" "${binfile}" executable {debug}] != ""} {
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return -1
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}
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clean_restart ${testfile}
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set bp_location [gdb_get_line_number "STOP" ${testdir}/prog.adb]
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if {![runto "prog.adb:$bp_location"]} {
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return -1
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}
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gdb_test "ptype value" [string_to_regexp "type = array (1 .. 3) of integer"]
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18
gdb/testsuite/gdb.ada/static-link/pck.ads
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18
gdb/testsuite/gdb.ada/static-link/pck.ads
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@ -0,0 +1,18 @@
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-- Copyright 2023 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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package Pck is
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Some_Value : Integer := 3;
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end Pck;
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35
gdb/testsuite/gdb.ada/static-link/prog.adb
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35
gdb/testsuite/gdb.ada/static-link/prog.adb
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@ -0,0 +1,35 @@
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-- Copyright 2023 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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with Pck; use Pck;
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procedure Prog is
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Upper : Integer := Some_Value;
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Value : array (1 .. Upper) of Integer := (23, 24, 25);
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procedure Inner_Most is
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begin
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null; -- STOP
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end;
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procedure Intermediate is
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begin
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Inner_Most;
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end;
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begin
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Intermediate;
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end Prog;
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