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authorTristan Gingold2014-11-04 20:14:19 +0100
committerTristan Gingold2014-11-04 20:14:19 +0100
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-This is the README from the source distribution of GHDL.
-
-To get the binary distribution or more information, go to http://ghdl.free.fr
-
-Copyright:
-**********
-GHDL is copyright (c) 2002 - 2010 Tristan Gingold.
-See the GHDL manual for more details.
-
-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 2 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, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
-
-
-Building GHDL from sources:
-***************************
-
-Required:
-* the sources of @GCCVERSION@ (at least the core part).
- Note: other versions of gcc sources have not been tested.
-* the Ada95 GNAT compiler (GNAT GPL 2008 are known to work;
- Ada compilers in most Linux distributions are more or less buggy)
-* GNU/Linux for ix86 (pc systems) (porting is necessary for other systems)
-
-Procedure:
-* Check your Ada compiler. On some systems (or with some distribution), the
- GNAT compiler seems broken. Try this very simple example, using file
- example.adb
-<<<<<<<<<<<<<<<<<<
-procedure Example is
-begin
- null;
-end Example;
-<<<<<<<<<<<<<<<<<<
- Compile with
- $ gnatmake example
- It should create an executable, 'example'.
- If this doesn't work, your GNAT installation is broken. It may be a PATH
- problem or something else.
-* untar the gcc tarball
-* untar the ghdl tarball (this sould have been done, since you are reading a
- file from it).
-* move or copy the vhdl directory of ghdl into the gcc subdirectory of
- the gcc distribution.
- You should have a @GCCVERSION@/gcc/vhdl directory.
-* configure gcc with the --enable-languages=vhdl option. You may of course
- add other languages. Also you'd better to disable bootstraping using
- --disable-bootstrap.
- Refer to the gcc installation documentation.
-* compile gcc.
- 'make CFLAGS="-O"' is OK
-* install gcc. This installs the ghdl driver too.
- 'make install' is OK.
-
-There is a mailing list for any questions. You can subscribe via:
- https://mail.gna.org/listinfo/ghdl-discuss/
-Please report bugs on https://gna.org/bugs/?group=ghdl
-
-If you cannot compile, please report the gcc version, GNAT version and gcc
-source version.
-
-* Note for ppc64 (and AIX ?) platform:
-The object file format contains an identifier for the source language. Because
-gcc doesn't know about the VHDL, gcc crashes very early. This could be fixed
-with a very simple change in gcc/config/rs6000/rs6000.c,
-function rs6000_output_function_epilogue (as of gcc 4.8):
- else if (! strcmp (language_string, "GNU Objective-C"))
- i = 14;
- else
-- gcc_unreachable ();
-+ i = 0;
- fprintf (file, "%d,", i);
-
- /* 8 single bit fields: global linkage (not set for C extern linkage,
-
-Tristan Gingold.