Hello Christiano,
you stated that you are compiling GHDL from sources, but the generated 0.33 is
not the latest version.
The current GitHub source code generates a “0.34dev” version.
Regarding your “make install” line: On my Linux (Debian), I need to wrap this
command in “sudo” to get
root rights to install the files into the system directories. Is sudo not
required on Raspi? Please check
if make install has overwritten all old GHDL files.
Regards
Patrick
-----------------------------------
Wissenschaftliche Hilfskraft
Technische Universität Dresden
Fakultät Informatik
Institut für Technische Informatik
Lehrstuhl VLSI-Entwurfssysteme, Diagnostik und Architektur
01062 Dresden
From: Ghdl-discuss [mailto:ghdl-discuss-boun...@gna.org] On Behalf Of
Christiano SA
Sent: Tuesday, May 17, 2016 6:16 PM
To: ghdl-discuss@gna.org
Subject: [Ghdl-discuss] Reporting bug: Foreign declarations and Procedure
problem in ghdl-llvm
Summary: The program works normally when calling external functions in FUNCTION
format and returns error while in PROCEDURE format.
The program below is working:
------------- t.vhdl-------------------
package math is
function fxch(x: integer) return integer;
attribute foreign of fxch : function is "VHPIDIRECT fxch";
end math;
package body math is
function fxch(x: integer) return integer is
begin
assert false severity failure;
end fxch;
end math;
-- Hello world program.
use std.textio.all; -- Imports the standard textio package.
use work.math.all;
-- Defines a design entity, without any ports.
entity hello_world is
end hello_world;
architecture behaviour of hello_world is
begin
process
variable x: integer;
begin
x := fxch(1);
wait;
end process;
end behaviour;
--------------------------------------------------------------------------
---------------- fxch.c ------------------------
#include <stdio.h>
int fxch(int x)
{
printf("hi\n");
return 0;
}
-------------------------------------------
------- terminal ----------------------------------
$ gcc -c fxch.c
$ ghdl -a t.vhdl
$ ghdl -e -Wl,fxch.o hello_world
$ ./hello_world
hi
$
-------------------------------------------------
This code above uses FUNCTION, however when I use PROCEDURE something goes
wrong, see below:
------------- t2.vhdl-------------------
package math is
procedure fxch;
attribute foreign of fxch : procedure is "VHPIDIRECT fxch";
end math;
package body math is
procedure fxch is
begin
assert false severity failure;
end fxch;
end math;
-- Hello world program.
use std.textio.all; -- Imports the standard textio package.
use work.math.all;
-- Defines a design entity, without any ports.
entity hello_world is
end hello_world;
architecture behaviour of hello_world is
begin
process
begin
fxch;
wait;
end process;
end behaviour;
-------------------------------------------------
------- fxch2.c -------------
#include <stdio.h>
void fxch()
{
printf("hi\n");
}
------------------
--------- terminal -------------
$ gcc -c fxch2.c
$ ghdl -a t2.vhdl
******************** GHDL Bug occured ****************************
Please report this bug on http://gna.org/projects/ghdl
GHDL release: GHDL 0.33 (20150921) [Dunoon edition]
Compiled with GNAT Version: 4.9.2
In directory: /home/pi/
Command line:
/usr/local/bin/ghdl1-llvm -P/usr/local/lib/ghdl/v93/std/
-P/usr/local/lib/ghdl/v93/ieee/ -c -o t2.o t2.vhdl
Exception CONSTRAINT_ERROR raised
Exception information:
Exception name: CONSTRAINT_ERROR
Message: ortho_llvm.adb:2911 access check failed
******************************************************************
ghdl: compilation error
-------------------------------------------------------------
My system is:
$ uname -a
Linux raspberrypi 4.4.9-v7+ #884 SMP Fri May 6 17:28:59 BST 2016 armv7l
GNU/Linux
My ghdl was compiled as follow:
./configure --prefix=/usr/local --with-llvm=/usr
make
make install
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Ghdl-discuss mailing list Ghdl-discuss@gna.org https://mail.gna.org/listinfo/ghdl-discuss
