mirror of
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version.c: Bump version to "gcc-3.0.0 970802 experimental".
* version.c: Bump version to "gcc-3.0.0 970802 experimental". * gcc.info*: Rebuilt. * COPYING.g77, README.g77: New files. * real.c (ereal_unto_float, ereal_unto_double): New functions. * real.h (ereal_unto_float, ereal_unto_double): Declare them. (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define. Get g77 to work with gcc3. From-SVN: r14776
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gcc/COPYING.g77
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@ -0,0 +1,339 @@
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 2, June 1991
|
||||
|
||||
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
|
||||
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The licenses for most software are designed to take away your
|
||||
freedom to share and change it. By contrast, the GNU General Public
|
||||
License is intended to guarantee your freedom to share and change free
|
||||
software--to make sure the software is free for all its users. This
|
||||
General Public License applies to most of the Free Software
|
||||
Foundation's software and to any other program whose authors commit to
|
||||
using it. (Some other Free Software Foundation software is covered by
|
||||
the GNU Library General Public License instead.) You can apply it to
|
||||
your programs, too.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Our General Public Licenses are designed to make sure that you
|
||||
have the freedom to distribute copies of free software (and charge for
|
||||
this service if you wish), that you receive source code or can get it
|
||||
if you want it, that you can change the software or use pieces of it
|
||||
in new free programs; and that you know you can do these things.
|
||||
|
||||
To protect your rights, we need to make restrictions that forbid
|
||||
anyone to deny you these rights or to ask you to surrender the rights.
|
||||
These restrictions translate to certain responsibilities for you if you
|
||||
distribute copies of the software, or if you modify it.
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||||
|
||||
For example, if you distribute copies of such a program, whether
|
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gratis or for a fee, you must give the recipients all the rights that
|
||||
you have. You must make sure that they, too, receive or can get the
|
||||
source code. And you must show them these terms so they know their
|
||||
rights.
|
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||||
We protect your rights with two steps: (1) copyright the software, and
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(2) offer you this license which gives you legal permission to copy,
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distribute and/or modify the software.
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Also, for each author's protection and ours, we want to make certain
|
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that everyone understands that there is no warranty for this free
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||||
Finally, any free program is threatened constantly by software
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||||
patents. We wish to avoid the danger that redistributors of a free
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||||
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||||
The precise terms and conditions for copying, distribution and
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||||
modification follow.
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||||
GNU GENERAL PUBLIC LICENSE
|
||||
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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|
||||
0. This License applies to any program or other work which contains
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a notice placed by the copyright holder saying it may be distributed
|
||||
under the terms of this General Public License. The "Program", below,
|
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refers to any such program or work, and a "work based on the Program"
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means either the Program or any derivative work under copyright law:
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that is to say, a work containing the Program or a portion of it,
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either verbatim or with modifications and/or translated into another
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language. (Hereinafter, translation is included without limitation in
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||||
the term "modification".) Each licensee is addressed as "you".
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Activities other than copying, distribution and modification are not
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covered by this License; they are outside its scope. The act of
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running the Program is not restricted, and the output from the Program
|
||||
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Whether that is true depends on what the Program does.
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1. You may copy and distribute verbatim copies of the Program's
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||||
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|
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||||
You may charge a fee for the physical act of transferring a copy, and
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2. You may modify your copy or copies of the Program or any portion
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distribute such modifications or work under the terms of Section 1
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a) You must cause the modified files to carry prominent notices
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b) You must cause any work that you distribute or publish, that in
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||||
c) If the modified program normally reads commands interactively
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when run, you must cause it, when started running for such
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interactive use in the most ordinary way, to print or display an
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||||
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License. (Exception: if the Program itself is interactive but
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These requirements apply to the modified work as a whole. If
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||||
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||||
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||||
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||||
Thus, it is not the intent of this section to claim rights or contest
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||||
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||||
exercise the right to control the distribution of derivative or
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||||
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||||
In addition, mere aggregation of another work not based on the Program
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||||
with the Program (or with a work based on the Program) on a volume of
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a storage or distribution medium does not bring the other work under
|
||||
the scope of this License.
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3. You may copy and distribute the Program (or a work based on it,
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under Section 2) in object code or executable form under the terms of
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Sections 1 and 2 above provided that you also do one of the following:
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||||
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||||
a) Accompany it with the complete corresponding machine-readable
|
||||
source code, which must be distributed under the terms of Sections
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||||
1 and 2 above on a medium customarily used for software interchange; or,
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||||
|
||||
b) Accompany it with a written offer, valid for at least three
|
||||
years, to give any third party, for a charge no more than your
|
||||
cost of physically performing source distribution, a complete
|
||||
machine-readable copy of the corresponding source code, to be
|
||||
distributed under the terms of Sections 1 and 2 above on a medium
|
||||
customarily used for software interchange; or,
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||||
|
||||
c) Accompany it with the information you received as to the offer
|
||||
to distribute corresponding source code. (This alternative is
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||||
allowed only for noncommercial distribution and only if you
|
||||
received the program in object code or executable form with such
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||||
an offer, in accord with Subsection b above.)
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||||
|
||||
The source code for a work means the preferred form of the work for
|
||||
making modifications to it. For an executable work, complete source
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code means all the source code for all modules it contains, plus any
|
||||
associated interface definition files, plus the scripts used to
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||||
control compilation and installation of the executable. However, as a
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||||
special exception, the source code distributed need not include
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||||
anything that is normally distributed (in either source or binary
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||||
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|
||||
operating system on which the executable runs, unless that component
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||||
itself accompanies the executable.
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||||
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||||
If distribution of executable or object code is made by offering
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||||
access to copy from a designated place, then offering equivalent
|
||||
access to copy the source code from the same place counts as
|
||||
distribution of the source code, even though third parties are not
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||||
compelled to copy the source along with the object code.
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||||
|
||||
4. You may not copy, modify, sublicense, or distribute the Program
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||||
except as expressly provided under this License. Any attempt
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||||
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|
||||
void, and will automatically terminate your rights under this License.
|
||||
However, parties who have received copies, or rights, from you under
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||||
this License will not have their licenses terminated so long as such
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||||
parties remain in full compliance.
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||||
|
||||
5. You are not required to accept this License, since you have not
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||||
signed it. However, nothing else grants you permission to modify or
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||||
distribute the Program or its derivative works. These actions are
|
||||
prohibited by law if you do not accept this License. Therefore, by
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||||
modifying or distributing the Program (or any work based on the
|
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Program), you indicate your acceptance of this License to do so, and
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||||
all its terms and conditions for copying, distributing or modifying
|
||||
the Program or works based on it.
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||||
|
||||
6. Each time you redistribute the Program (or any work based on the
|
||||
Program), the recipient automatically receives a license from the
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||||
original licensor to copy, distribute or modify the Program subject to
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||||
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|
||||
restrictions on the recipients' exercise of the rights granted herein.
|
||||
You are not responsible for enforcing compliance by third parties to
|
||||
this License.
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||||
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||||
7. If, as a consequence of a court judgment or allegation of patent
|
||||
infringement or for any other reason (not limited to patent issues),
|
||||
conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot
|
||||
distribute so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you
|
||||
may not distribute the Program at all. For example, if a patent
|
||||
license would not permit royalty-free redistribution of the Program by
|
||||
all those who receive copies directly or indirectly through you, then
|
||||
the only way you could satisfy both it and this License would be to
|
||||
refrain entirely from distribution of the Program.
|
||||
|
||||
If any portion of this section is held invalid or unenforceable under
|
||||
any particular circumstance, the balance of the section is intended to
|
||||
apply and the section as a whole is intended to apply in other
|
||||
circumstances.
|
||||
|
||||
It is not the purpose of this section to induce you to infringe any
|
||||
patents or other property right claims or to contest validity of any
|
||||
such claims; this section has the sole purpose of protecting the
|
||||
integrity of the free software distribution system, which is
|
||||
implemented by public license practices. Many people have made
|
||||
generous contributions to the wide range of software distributed
|
||||
through that system in reliance on consistent application of that
|
||||
system; it is up to the author/donor to decide if he or she is willing
|
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to distribute software through any other system and a licensee cannot
|
||||
impose that choice.
|
||||
|
||||
This section is intended to make thoroughly clear what is believed to
|
||||
be a consequence of the rest of this License.
|
||||
|
||||
8. If the distribution and/or use of the Program is restricted in
|
||||
certain countries either by patents or by copyrighted interfaces, the
|
||||
original copyright holder who places the Program under this License
|
||||
may add an explicit geographical distribution limitation excluding
|
||||
those countries, so that distribution is permitted only in or among
|
||||
countries not thus excluded. In such case, this License incorporates
|
||||
the limitation as if written in the body of this License.
|
||||
|
||||
9. The Free Software Foundation may publish revised and/or new versions
|
||||
of the General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the Program
|
||||
specifies a version number of this License which applies to it and "any
|
||||
later version", you have the option of following the terms and conditions
|
||||
either of that version or of any later version published by the Free
|
||||
Software Foundation. If the Program does not specify a version number of
|
||||
this License, you may choose any version ever published by the Free Software
|
||||
Foundation.
|
||||
|
||||
10. If you wish to incorporate parts of the Program into other free
|
||||
programs whose distribution conditions are different, write to the author
|
||||
to ask for permission. For software which is copyrighted by the Free
|
||||
Software Foundation, write to the Free Software Foundation; we sometimes
|
||||
make exceptions for this. Our decision will be guided by the two goals
|
||||
of preserving the free status of all derivatives of our free software and
|
||||
of promoting the sharing and reuse of software generally.
|
||||
|
||||
NO WARRANTY
|
||||
|
||||
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
|
||||
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
|
||||
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
|
||||
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
|
||||
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
|
||||
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
|
||||
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
|
||||
REPAIR OR CORRECTION.
|
||||
|
||||
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||||
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
|
||||
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
|
||||
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
|
||||
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
|
||||
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
|
||||
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGES.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
Appendix: How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
convey the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) 19yy <name of author>
|
||||
|
||||
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
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program is interactive, make it output a short notice like this
|
||||
when it starts in an interactive mode:
|
||||
|
||||
Gnomovision version 69, Copyright (C) 19yy name of author
|
||||
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, the commands you use may
|
||||
be called something other than `show w' and `show c'; they could even be
|
||||
mouse-clicks or menu items--whatever suits your program.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or your
|
||||
school, if any, to sign a "copyright disclaimer" for the program, if
|
||||
necessary. Here is a sample; alter the names:
|
||||
|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
||||
`Gnomovision' (which makes passes at compilers) written by James Hacker.
|
||||
|
||||
<signature of Ty Coon>, 1 April 1989
|
||||
Ty Coon, President of Vice
|
||||
|
||||
This General Public License does not permit incorporating your program into
|
||||
proprietary programs. If your program is a subroutine library, you may
|
||||
consider it more useful to permit linking proprietary applications with the
|
||||
library. If this is what you want to do, use the GNU Library General
|
||||
Public License instead of this License.
|
@ -1,3 +1,14 @@
|
||||
Tue Aug 12 10:20:36 1997 Jeffrey A Law (law@cygnus.com)
|
||||
|
||||
* version.c: Bump version to "gcc-3.0.0 970802 experimental".
|
||||
|
||||
* gcc.info*: Rebuilt.
|
||||
|
||||
* COPYING.g77, README.g77: New files.
|
||||
* real.c (ereal_unto_float, ereal_unto_double): New functions.
|
||||
* real.h (ereal_unto_float, ereal_unto_double): Declare them.
|
||||
(REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
|
||||
|
||||
Mon Aug 11 14:50:55 1997 Jeffrey A Law (law@cygnus.com)
|
||||
|
||||
* Integrate Haifa instruction scheduler.
|
||||
|
166
gcc/README.g77
Normal file
166
gcc/README.g77
Normal file
@ -0,0 +1,166 @@
|
||||
1997-06-20
|
||||
|
||||
This directory contains the version 0.5.21 release of the GNU Fortran
|
||||
compiler. The GNU Fortran compiler is free software. See the file
|
||||
COPYING.g77 for copying permission.
|
||||
|
||||
* IMPORTANT: Things you _must_ do are marked with a * at the beginning of
|
||||
the line in this file!!!
|
||||
|
||||
This README is for GNU Fortran, and describes the files in the f/
|
||||
directory. The f/ directory is intended to be a subdirectory of a
|
||||
gcc source tree. These directories are referred to below as gcc/,
|
||||
which is the top-level directory containing the gcc back end, the
|
||||
gcc C front end, and other non-Fortran files, and gcc/f/, which
|
||||
contains all of the Fortran files.
|
||||
|
||||
* To build GNU Fortran, you must have a source distribution of gcc
|
||||
version 2.7.2.2. Do not attempt to use any other version
|
||||
of gcc, because this version of g77 is designed to work only with
|
||||
gcc version 2.7.2.2.
|
||||
|
||||
* Note that you must have source copies of these gcc distributions!!
|
||||
You cannot build g77 just using binaries of gcc. Also, unless you
|
||||
are an expert, avoid using any distribution of gcc not identical to
|
||||
the one distributed by the FSF -- for example, using a special version
|
||||
modified to produce better code for the Pentium (sometimes labeled
|
||||
gcc-i2.6.3 -- note the `i') will not work with this distribution of g77.
|
||||
|
||||
If you have just unpacked the g77 distribution, before proceeding,
|
||||
you must merge the contents of the g77 distribution with the appropriate
|
||||
gcc distribution on your system before proceeding.
|
||||
|
||||
* Read and follow the instructions in g77-0.5.21/f/INSTALL that
|
||||
explain how to merge a g77 source directory into a gcc source
|
||||
directory. You can use Info to read the same installation
|
||||
instructions via:
|
||||
|
||||
info -f g77-0.5.21/f/g77.info -n Unpacking
|
||||
|
||||
The resulting directory layout includes the following, where gcc/ might be
|
||||
a link to, for example, gcc-2.7.2.2/:
|
||||
|
||||
gcc/ Non-Fortran files in gcc (not part of g77*.tar)
|
||||
gcc/README.g77 This file
|
||||
gcc/f/ GNU Fortran front end
|
||||
gcc/f/gbe/ Patches required for gcc back end versions
|
||||
gcc/f/runtime/ libf2c configuration and f2c.h file generation
|
||||
gcc/f/runtime/libF77/ Non-I/O portion of libf2c
|
||||
gcc/f/runtime/libI77/ I/O portion of libf2c
|
||||
gcc/f/runtime/libU77/ Additional interfaces to libc for libf2c
|
||||
|
||||
gcc/f/ as a whole contains the program GNU Fortran (g77), plus a portion
|
||||
of the separate program f2c, which is in gcc/f/runtime. NOTE: The f2c
|
||||
code is not part of the program g77, just distributed with it.
|
||||
|
||||
This directory is named gcc/f/ because it, along with its contents, is
|
||||
designed to be a subdirectory of a GNU CC (gcc) development directory. I.e.
|
||||
when a gcc distribution is unpacked into a directory (named gcc/ for
|
||||
example), it typically contains subdirectories like gcc/config/ and
|
||||
gcc/cp/. The latter is the subdirectory for the GNU C++ (g++) program.
|
||||
|
||||
Similarly, the g77 directory f/ is designed to be placed in gcc/ so that
|
||||
it becomes the subdirectory gcc/f/. g77 is distributed as g77-someversion/f/
|
||||
so that unpacking the g77 distribution is done in the normal GNU way,
|
||||
resulting in a directory having the version number in the name. However,
|
||||
to build g77, the g77 distribution must be merged with an appropriate gcc
|
||||
distribution, normally in a gcc directory, before configuring, building,
|
||||
and installing g77.
|
||||
|
||||
Applying g77 patches in the form of .diff files is done by typing
|
||||
"patch -p1 -d gcc" (where gcc/f/ is the active version). That is,
|
||||
g77 patches are distributed in the same form, and at the same directory
|
||||
level, as patches to the gcc distribution.
|
||||
|
||||
gcc/f/ has text files that document the Fortran compiler, source
|
||||
files for the GNU Fortran Front End (FFE), and some other stuff.
|
||||
|
||||
gcc/f/gbe/ has patch files for various versions of gcc, primarily
|
||||
needed to patch the GNU compiler Back End (GBE) to fix and improve it
|
||||
for use with g77. If a patch file exists for the version of gcc you
|
||||
want to build along with g77, you MUST apply the patch before building
|
||||
g77 with that version or g77 will not build or work properly.*
|
||||
|
||||
* Read gcc/f/gbe/README for more information.
|
||||
|
||||
gcc/f/runtime/ contains the run-time libraries for the f2c program, also used
|
||||
by g77, and referred to as libf2c (though libf2c is really a combination of
|
||||
two distinct libraries, libF77 and libI77 -- in g77, this distinction is
|
||||
not made, and, further, Dave Love's implementation of libU77 is added
|
||||
to the mix). This separate subdirectory is not part of the program g77, just
|
||||
distributed with it. Some new files have been added to this subdirectory
|
||||
and some minor changes made to the files contained therein, to fix some
|
||||
bugs and facilitate automatic configuration, building, and installation of
|
||||
libf2c for use by g77 users. See gcc/f/runtime/README for more information.
|
||||
|
||||
gcc/f/BUGS lists some important bugs known to be in g77. Or:
|
||||
|
||||
info -f gcc/f/g77.info -n "Actual Bugs"
|
||||
|
||||
gcc/f/ChangeLog lists recent changes to g77 internals.
|
||||
|
||||
gcc/f/INSTALL describes how to build and install GNU Fortran. Or:
|
||||
|
||||
info -f gcc/f/g77.info -n Installation
|
||||
|
||||
gcc/f/NEWS contains the per-release changes (not just user-visible ones
|
||||
seen in gcc/f/DOC) listed in the ~fortran/.plan file. Or:
|
||||
|
||||
info -f gcc/f/g77.info -n News
|
||||
|
||||
* Read gcc/f/BUGS, gcc/f/INSTALL, and gcc/f/NEWS at the very least!
|
||||
All users of g77 (not just installers) should read gcc/f/g77.info*
|
||||
as well, using the "more" command if the "info" command is
|
||||
unavailable or they aren't accustomed to using it.
|
||||
|
||||
If you want to get into the FFE code, which lives entirely in gcc/f/, here
|
||||
are a few clues. The file g77.c is the stand-alone source file for the
|
||||
`g77' command driver only -- this just invokes the `gcc' command, so it has
|
||||
nothing to do with the rest of the code in g77. Most of the code
|
||||
ends up in an executable named `f771', which does the actual compiling,
|
||||
so it has the FFE merged with the gcc back end.
|
||||
|
||||
The file parse.c is the source file for main() for a stand-alone FFE and
|
||||
yyparse() for f771. (Stand-alone building of the FFE doesn't work these days.)
|
||||
The file top.c contains the top-level FFE function ffe_file and it (along
|
||||
with top.h) define all ffe_[a-z].*, ffe[A-Z].*, and FFE_[A-Za-z].* symbols.
|
||||
The file fini.c is a main() program that is used when building the FFE to
|
||||
generate C header and source files for recognizing keywords. The files
|
||||
malloc.c and malloc.h comprise a memory manager that defines all
|
||||
malloc_[a-z].*, malloc[A-Z].*, and MALLOC_[A-Za-z].* symbols. All other
|
||||
modules named <xyz> are comprised of all files named <xyz>*.<ext> and
|
||||
define all ffe<xyz>_[a-z].*, ffe<xyz>[A-Z].*, and FFE<XYZ>_[A-Za-z].* symbols.
|
||||
If you understand all this, congratulations -- it's easier for me to remember
|
||||
how it works than to type in these grep patterns (such as they are). But it
|
||||
does make it easy to find where a symbol is defined -- for example,
|
||||
the symbol "ffexyz_set_something" would be defined in xyz.h and implemented
|
||||
there (if it's a macro) or in xyz.c.
|
||||
|
||||
The "porting" files of note currently are: proj.h, which defines the
|
||||
"language" used by all the other source files (the language being
|
||||
Standard C plus some useful things like ARRAY_SIZE and such) -- change
|
||||
this file when you find your system doesn't properly define a Standard C
|
||||
macro or function, for example; target.h and target.c, which describe
|
||||
the target machine in terms of what data types are supported, how they are
|
||||
denoted (what C type does an INTEGER*8 map to, for example), how to convert
|
||||
between them, and so on (though as of 0.5.3, more and more of this information
|
||||
is being dynamically configured by ffecom_init_0); com.h and com.c, which
|
||||
interface to the target back end (currently only FFE stand-alone and the GBE);
|
||||
ste.c, which contains code for implementing recognized executable statements
|
||||
in the target back end (again currently either FFE or GBE); src.h and src.c,
|
||||
which describe information on the format(s) of source files (like whether
|
||||
they are never to be processed as case-insensitive with regard to Fortran
|
||||
keywords); and proj.c, which contains whatever code is needed to support
|
||||
the language defined by proj.h.
|
||||
|
||||
If you want to debug the f771 executable, for example if it crashes,
|
||||
note that the global variables "lineno" and "input_filename" are set
|
||||
to reflect the current line being read by the lexer during the first-pass
|
||||
analysis of a program unit and to reflect the current line being
|
||||
processed during the second-pass compilation of a program unit. If
|
||||
an invocation of the function ffestd_exec_end() is on the stack,
|
||||
the compiler is in the second pass, otherwise it is in the first.
|
||||
(This information might help you reduce a test case and/or work around
|
||||
a bug in g77 until a fix is available.)
|
||||
|
||||
Any questions or comments on these topics, email fortran@gnu.ai.mit.edu.
|
74
gcc/real.c
74
gcc/real.c
@ -5799,10 +5799,76 @@ make_nan (nan, sign, mode)
|
||||
*nan = (sign << 15) | *p;
|
||||
}
|
||||
|
||||
/* Convert an SFmode target `float' value to a REAL_VALUE_TYPE.
|
||||
This is the inverse of the function `etarsingle' invoked by
|
||||
/* This is the inverse of the function `etarsingle' invoked by
|
||||
REAL_VALUE_TO_TARGET_SINGLE. */
|
||||
|
||||
REAL_VALUE_TYPE
|
||||
ereal_unto_float (f)
|
||||
long f;
|
||||
{
|
||||
REAL_VALUE_TYPE r;
|
||||
unsigned EMUSHORT s[2];
|
||||
unsigned EMUSHORT e[NE];
|
||||
|
||||
/* Convert 32 bit integer to array of 16 bit pieces in target machine order.
|
||||
This is the inverse operation to what the function `endian' does. */
|
||||
if (REAL_WORDS_BIG_ENDIAN)
|
||||
{
|
||||
s[0] = (unsigned EMUSHORT) (f >> 16);
|
||||
s[1] = (unsigned EMUSHORT) f;
|
||||
}
|
||||
else
|
||||
{
|
||||
s[0] = (unsigned EMUSHORT) f;
|
||||
s[1] = (unsigned EMUSHORT) (f >> 16);
|
||||
}
|
||||
/* Convert and promote the target float to E-type. */
|
||||
e24toe (s, e);
|
||||
/* Output E-type to REAL_VALUE_TYPE. */
|
||||
PUT_REAL (e, &r);
|
||||
return r;
|
||||
}
|
||||
|
||||
|
||||
/* This is the inverse of the function `etardouble' invoked by
|
||||
REAL_VALUE_TO_TARGET_DOUBLE. */
|
||||
|
||||
REAL_VALUE_TYPE
|
||||
ereal_unto_double (d)
|
||||
long d[];
|
||||
{
|
||||
REAL_VALUE_TYPE r;
|
||||
unsigned EMUSHORT s[4];
|
||||
unsigned EMUSHORT e[NE];
|
||||
|
||||
/* Convert array of HOST_WIDE_INT to equivalent array of 16-bit pieces. */
|
||||
if (REAL_WORDS_BIG_ENDIAN)
|
||||
{
|
||||
s[0] = (unsigned EMUSHORT) (d[0] >> 16);
|
||||
s[1] = (unsigned EMUSHORT) d[0];
|
||||
s[2] = (unsigned EMUSHORT) (d[1] >> 16);
|
||||
s[3] = (unsigned EMUSHORT) d[1];
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Target float words are little-endian. */
|
||||
s[0] = (unsigned EMUSHORT) d[0];
|
||||
s[1] = (unsigned EMUSHORT) (d[0] >> 16);
|
||||
s[2] = (unsigned EMUSHORT) d[1];
|
||||
s[3] = (unsigned EMUSHORT) (d[1] >> 16);
|
||||
}
|
||||
/* Convert target double to E-type. */
|
||||
e53toe (s, e);
|
||||
/* Output E-type to REAL_VALUE_TYPE. */
|
||||
PUT_REAL (e, &r);
|
||||
return r;
|
||||
}
|
||||
|
||||
|
||||
/* Convert an SFmode target `float' value to a REAL_VALUE_TYPE.
|
||||
This is somewhat like ereal_unto_float, but the input types
|
||||
for these are different. */
|
||||
|
||||
REAL_VALUE_TYPE
|
||||
ereal_from_float (f)
|
||||
HOST_WIDE_INT f;
|
||||
@ -5832,8 +5898,8 @@ ereal_from_float (f)
|
||||
|
||||
|
||||
/* Convert a DFmode target `double' value to a REAL_VALUE_TYPE.
|
||||
This is the inverse of the function `etardouble' invoked by
|
||||
REAL_VALUE_TO_TARGET_DOUBLE.
|
||||
This is somewhat like ereal_unto_double, but the input types
|
||||
for these are different.
|
||||
|
||||
The DFmode is stored as an array of HOST_WIDE_INT in the target's
|
||||
data format, with no holes in the bit packing. The first element
|
||||
|
@ -153,6 +153,8 @@ extern long etarsingle PROTO((REAL_VALUE_TYPE));
|
||||
extern void ereal_to_decimal PROTO((REAL_VALUE_TYPE, char *));
|
||||
extern int ereal_cmp PROTO((REAL_VALUE_TYPE, REAL_VALUE_TYPE));
|
||||
extern int ereal_isneg PROTO((REAL_VALUE_TYPE));
|
||||
extern REAL_VALUE_TYPE ereal_unto_float PROTO((long));
|
||||
extern REAL_VALUE_TYPE ereal_unto_double PROTO((long *));
|
||||
extern REAL_VALUE_TYPE ereal_from_float PROTO((HOST_WIDE_INT));
|
||||
extern REAL_VALUE_TYPE ereal_from_double PROTO((HOST_WIDE_INT *));
|
||||
|
||||
@ -200,6 +202,12 @@ extern REAL_VALUE_TYPE real_value_truncate ();
|
||||
/* IN is a REAL_VALUE_TYPE. OUT is a long. */
|
||||
#define REAL_VALUE_TO_TARGET_SINGLE(IN, OUT) ((OUT) = etarsingle ((IN)))
|
||||
|
||||
/* Inverse of REAL_VALUE_TO_TARGET_DOUBLE. */
|
||||
#define REAL_VALUE_UNTO_TARGET_DOUBLE(d) (ereal_unto_double (d))
|
||||
|
||||
/* Inverse of REAL_VALUE_TO_TARGET_SINGLE. */
|
||||
#define REAL_VALUE_UNTO_TARGET_SINGLE(f) (ereal_unto_float (f))
|
||||
|
||||
/* d is an array of HOST_WIDE_INT that holds a double precision
|
||||
value in the target computer's floating point format. */
|
||||
#define REAL_VALUE_FROM_TARGET_DOUBLE(d) (ereal_from_double (d))
|
||||
|
@ -1 +1 @@
|
||||
char *version_string = "testgcc-2.7.90 970802 experimental";
|
||||
char *version_string = "gcc-3.0.0 970802 experimental";
|
||||
|
Loading…
Reference in New Issue
Block a user