forked from Imagelibrary/binutils-gdb
a7041de85a
In Ada, an enum can contain character literals. GNAT encodes these
values in a special way. For example, the Unicode character U+0178
would be represented as 'QW0178' in the DWARF:
<3><112f>: Abbrev Number: 2 (DW_TAG_enumerator)
<1130> DW_AT_name : (indirect string, offset: 0x19ff): QW0178
<1134> DW_AT_const_value : 2
gdb handles this reasonably well, but failed to handle the 'QWW'
encoding, which is used for characters outside the base plane.
Also, while working on this, I noticed that gdb will print the decimal
value for an enum character constant:
(gdb) print Char_X
$2 = 1 'x'
This is a nice feature, IMO, because in this situation the 'x' enum
constant does not have its usual decimal value -- it has the value
that's assigned based on the enumeration type.
However, gdb did not do this when it decided to print the constant
using the bracket notation:
(gdb) print Char_Thorn
$3 = ["de"]
This patch changes gdb to print the decimal value here as well, and to
put the bracket notation in single quotes -- otherwise gdb will be
printing something that it can't then read. Now it looks like:
(gdb) print Char_Thorn
$3 = 4 '["de"]'
Note that gdb can't read longer bracket notations, like the other ones
printed in this test case:
(gdb) print Char_King
$4 = 3 '["01fa00"]'
While I think this is a bug, I plan to fix it separately.
Finally, in the new test case, the copyright dates are chosen this way
because this all started as a copy of an existing test.
31 lines
1.1 KiB
Ada
31 lines
1.1 KiB
Ada
-- Copyright 2011-2022 Free Software Foundation, Inc.
|
|
--
|
|
-- 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/>.
|
|
|
|
with Pck; use Pck;
|
|
|
|
procedure Foo is
|
|
type Char_Enum_Type is (alpha, 'x', 'Ÿ', '🨀', 'Þ');
|
|
Char_Alpha : Char_Enum_Type := alpha;
|
|
Char_X : Char_Enum_Type := 'x';
|
|
Char_Thorn : Char_Enum_Type := 'Þ';
|
|
Char_Y : Char_Enum_Type := 'Ÿ';
|
|
Char_King : Char_Enum_Type := '🨀';
|
|
begin
|
|
Do_Nothing (Char_Alpha'Address); -- STOP
|
|
Do_Nothing (Char_X'Address);
|
|
Do_Nothing (Char_Y'Address);
|
|
Do_Nothing (Char_King'Address);
|
|
end Foo;
|