blob: 36eab55d2ff1cf230bec1db4e699d137a2ea3ff3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
-- EMACS settings: -*- tab-width: 2; indent-tabs-mode: t -*-
-- vim: tabstop=2:shiftwidth=2:noexpandtab
-- kate: tab-width 2; replace-tabs off; indent-width 2;
-- =============================================================================
-- Authors: Patrick Lehmann
-- Reproducer: Experiments on custom attributes ended in a crash.
--
-- License:
-- =============================================================================
-- Copyright 2007-2016 Technische Universitaet Dresden - Germany
-- Chair for VLSI-Design, Diagnostics and Architecture
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
-- =============================================================================
--
-- Issue:
-- I'm not sure if my experimental code is allowed in VHDL, but it let GHDL
-- crash. So I'm reporting just an unhandled exception.
--
-- GHDL's output is:
-- .\attribute.vhdl:64:58: can't match 'image attribute with type character
-- .\attribute.vhdl:64:53: (location of 'image attribute)
-- finish_sem_name: cannot handle IIR_KIND_OVERLOAD_LIST (??:??:??)
--
-- ******************** GHDL Bug occurred ****************************
-- Please report this bug on https://github.com/tgingold/ghdl/issues
-- GHDL release: GHDL 0.34dev (commit: 2016-02-11; git branch: paebbels/master'; hash: f24fdfb) [Dunoon edition]
-- Compiled with GNAT Version: GPL 2015 (20150428-49)
-- In directory: H:\Austausch\PoC\temp\ghdl\
-- Command line:
-- C:\Tools\GHDL.new\bin\ghdl.exe -a --std=08 .\attribute.vhdl
-- Exception TYPES.INTERNAL_ERROR raised
-- Exception information:
-- Exception name: TYPES.INTERNAL_ERROR
-- Message: errorout.adb:66
-- ******************************************************************
--
-- GHDL calls:
-- PS> ghdl.exe -a --std=93c .\attribute.vhdl
-- PS> ghdl.exe -a --std=08 .\attribute.vhdl
--
library IEEE;
use IEEE.std_logic_1164.all;
entity test is
end entity;
architecture tb of test is
function to_string(slv : STD_LOGIC_VECTOR) return STRING is
variable Result : STRING(slv'length - 1 downto 0);
begin
for i in slv'range loop
Result(i + 1) := STD_LOGIC'image(slv(i));
end loop;
return Result;
end function;
attribute serialize : to_string;
signal mySignal : STD_LOGIC_VECTOR(7 downto 0);
attribute serialize of mySignal : signal is to_string[STD_LOGIC_VECTOR return STRING];
begin
mySignal <= x"24";
process
begin
report "mySignal=" & mySignal'serialize severity NOTE;
wait;
end process;
end architecture;
|
