old-cross-binutils/gdb/testsuite/gdb.ada/rec_comp.exp

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# Copyright 2015-2016 Free Software Foundation, Inc.
[Ada] Preserve typedef layer when getting struct element Consider the following declarations: type Int_Access is access Integer; type Record_Type is record IA : Int_Access; end record; R : Record_Type; Printing the type name of "R.IA" yields: (gdb) whatis r.ia type = access integer It should be: (gdb) whatis r.ia type = bar.int_access Looking at the debugging info, field "r.ia" is defined as a typedef which has the name of the field type: .uleb128 0x3 # (DIE (0x4e) DW_TAG_typedef) .long .LASF4 # DW_AT_name: "bar__int_access" .long 0x8b # DW_AT_type ... with the typedef's target type being an anonymous pointer type: .uleb128 0x7 # (DIE (0x8b) DW_TAG_pointer_type) .byte 0x8 # DW_AT_byte_size .long 0x91 # DW_AT_type What happens here is that a couple of function in ada-lang.c always start by stripping all typedef layers when handling struct fields, with the effect of making us lose the type name in this case. We did not understand this at the time the code was written, but typedefs should be stripped only when we know we do not need them. So this patch, adjust the code to avoid the stripping while handling the fields, and adds it back in the lone place which handles the result of processing and didn't know how to handle typedefs struct fields yet. gdb/ChangeLog: * ada-lang.c (ada_is_tagged_type): Add call to ada_check_typedef. (ada_lookup_struct_elt_type): Remove calls to ada_check_typedef. (template_to_static_fixed_type): Call ada_check_typedef only when necessary. gdb/testsuite/ChangeLog: * gdb.ada/rec_comp: New testcase.
2015-04-27 09:04:47 +00:00
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
load_lib "ada.exp"
standard_ada_testfile bar_o203_012
if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug ]] != "" } {
return -1
}
clean_restart ${testfile}
set bp_location [gdb_get_line_number "STOP" ${testdir}/bar_o203_012.adb]
if ![runto "bar_o203_012.adb:$bp_location" ] then {
perror "Couldn't run ${testfile}"
return
}
gdb_test "whatis r.ia" " = bar_o203_012.int_access"
gdb_test "ptype r" \
" = record\r\n *ia: bar_o203_012\.int_access;\r\nend record"
gdb_test "ptype r.ia" " = access <$decimal-byte integer>"