Mail Archives: djgpp-announce/1999/11/09/15:00:52
This is an announcement of DJGPP port of gcc-2.95.2 and some additional
packages:
GCC-2.95.2
GCC used to stand for the GNU C Compiler, but since the compiler
supports several other languages aside from C, it now stands
for the GNU Compiler Collection. It includes C, C++,
Objective-C and GNU Fortran compilers with corresponding libraries.
There are too much new features in gcc-2.95.2 against gcc-2.8.1 and
egcs-1.1.2 that it's difficult to name them all here.
libg++-2.8.1.3
This is addon for current gcc releases (e.g. gcc-2.95.2)
and libstdc++. It is needed only if your applications depend on
libg++ and you cannot easily remove the dependency on libg++.
The standalone libg++ is no longer needed. Note that this package
is no longer being maintained.
which are available from DJGPP distribution in Simtelnet
(and mirror sites) in directory v2gnu:
ftp://ftp.cdrom.com/pub/simtelnet/gnu/djgpp/v2gnu
For information what's new in gcc-2.95.2 and gcc-2.95 see
http://egcs.cygnus.com/gcc-2.95/gcc-2.95.2.html
http://egcs.cygnus.com/gcc-2.95/gcc-2.95.html
There are 7 archives:
readme-gcc295.txt - readme file from DJGPP port of GCC-2.95.2. It's
in separate file to avoid need to download large
archives to get this file.
gcc2952s.zip - sources of gcc-2.95.2 and libg++-2.8.1.3 for DJGPP.
I put all sources in a single archive. This file is only
needed if You're want to rebuild gcc-2.95.2 from
sources.
gcc2952b.zip - binaries of C compiler
gpp2952b.zip - binaries of C++ compiler (needs gcc2952b.zip)
g772952b.zip - binaries of Fortran compiler (needs gcc2952b.zip)
objc2952.zip - binaries of Objective C compiler (needs gcc2952b.zip)
lgp2952b.zip - binaries and header files of libg++-2.8.1.3 (useless
without gcc2952b.zip and gpp2952b.zip)
gcc2951s2.zip - shell script and patches for original gcc-2.95.2 (and
libg++-2.8.1.3) sources. I used them to generate
gcc-2.95.2 sources for DJGPP (later archived in
gcc2952s.zip).
(Note that CHILL and JAVA compiler binaries are not made available as
they are not ready for general use, more exactly not tested at all.
I don't know when this will change. I don't have any plans in
that direction)
Files user need:
Programming languages Needed files
C gcc2952b.zip
C++ gcc2952b.zip, gpp2952b.zip (and possibly also
lgp2952b.zip)
Fortran gcc2952b.zip, g772952b.zip
Objective-C gcc2952b.zip, objc2952.zip
Pascal Sorry, not supported. Use port of egcs-1.1.2
instead
NOTE: gcc2952b.zip contains file cxxfilt.exe and there is file with same
name in binutils (bnu281b.zip). You can safely overwrite the old
one.
For more information about this port see archive
gnu/gcc-2.952/readme.DJGPP
after unpacking either gcc2952b.zip or gcc2952s.zip or get file
readme-gcc2952.txt from directory v2gnu in DJGPP distribution
Also please DON'T mix C++ libraries (or object files) built with
different compiler versions. C++ sources should be recompiled (seems
that there is no need to do this for C sources).
System requirements:
DJGPP-2.02 or above (otherwise exceptions will not work at all)
binutils-2.8.1 (2.9.1 recommended however official port is
not yet available)
Some warning for users of C++. C++ compiler in gcc-2.95.2 does more
strict
syntax checking as earlier versions of gcc and egcs. As result errors are
generated in many places where earlier one got warnings.
Happy hacking
Andris Pavenis <pavenis AT lanet DOT lv>
-------------------------------------------------------------------------
Here is official announcement of gcc-2.95.2
-------------------------------------------------------------------------
GCC 2.95.2
October 27, 1999
The GNU project and the GCC developers are pleased to announce the
release of GCC version 2.95.2. GCC used to stand for the GNU C
Compiler, but since the compiler supports several other languages
aside from C, it now stands for the GNU Compiler Collection.
This is a minor release to address several bugs in the GCC version
2.95.1 release.
The -fstrict-aliasing is not enabled by default for GCC 2.95.2. While
the optimizations performed by -fstrict-aliasing are valid according
to the C and C++ standards, the optimization have caused some
problems, particularly with old non-conforming code.
The GCC developers are experimenting with ways to warn users about
code which violates the C/C++ standards, but those warnings are not
ready for widespread use at this time. Rather than wait for those
warnings the GCC developers have choosen to disable -fstrict-aliasing
by default for the GCC 2.95.2 release.
We strongly encourage developers to find and fix code which violates
the C/C++ standards as -fstrict-aliasing may be enabled by default in
future releases. Use the option -fstrict-aliasing to re-enable these
optimizations.
* Generic bugfixes and improvements
+ Fix incorrectly optimized memory reference in global common
subexpression elimination (GCSE) optimization pass.
+ Fix code generation bug in regmove.c in which it could
incorrectly change a "const" value.
+ Fix bug in optimization of conditionals involving volatile
memory references.
+ Avoid over-allocation of stack space for some procedures.
+ Fixed bug in the compiler which caused incorrect optimization
of an obscure series of bit manipulations, shifts and
arithmetic.
+ Fixed register allocator bug which caused teTeX to be
mis-compiled on Sparc targets.
+ Avoid incorrect optimization of degenerate case statements
for certain targets such as the ARM.
+ Fix out of range memory reference in the jump optimizer.
+ Avoid dereferencing null pointer in fix-header.
+ Fix test for GCC specific features so that it is possible to
bootstrap with gcc-2.6.2 and older versions of GCC.
+ Fix typo in scheduler which could potentially cause out of
range memory accesses.
+ Avoid incorrect loop reversal which caused incorrect code for
certain loops on PowerPC targets.
+ Avoid incorrect optimization of switch statements on certain
targets (for example the ARM).
* Platform specific bugfixes and improvements
+ Work around bug in Sun V5.0 compilers which caused bootstrap
comparison failures on Sparc targets.
+ Fix Sparc backend bug which caused aborts in final.c.
+ Fix sparc-hal-solaris2* configuration fragments.
+ Fix bug in sparc block profiling.
+ Fix obscure code generation bug for the PARISC targets.
+ Define __STDC_EXT__ for HPUX configurations.
+ Various POWERPC64 code generation bugfixes.
+ Fix abort for PPC targets using ELF (ex GNU/Linux).
+ Fix collect2 problems for AIX targets.
+ Correct handling of .file directive for PPC targets.
+ Fix bug in fix_trunc x86 patterns.
+ Fix x86 port to correctly pop the FP stack for functions that
return structures in memory.
+ Fix minor bug in strlen x86 pattern.
+ Use stabs debugging instead of dwarf1 for x86-solaris
targets.
+ Fix template repository code to handle leading underscore in
mangled names.
+ Fix weak/weak alias support for OpenBSD.
+ GNU/Linux for the ARM has C++ compatible include files.
* Language & Runtime specific fixes.
+ Fix handling of constructor attribute in the C front-end
which caused problems building the Chill runtime library on
some targets.
+ Fix minor problem merging type qualifiers in the C front-end.
+ Fix aliasing bug for pointers and references (C/C++).
+ Fix incorrect "non-constant initializer bug" when
-traditional or -fwritable-strings is enabled.
+ Fix build error for Chill front-end on SunOS.
+ Do not complain about duplicate instantiations when using
-frepo (C++)
+ Fix array bounds handling in C++ front-end which caused
problems with dwarf debugging information in some
circumstances.
+ Fix minor namespace problem.
+ Fix problem linking java programs.
The whole suite has been extensively [1]regression tested and
[2]package tested. It should be reliable and suitable for widespread
use.
The GCC 2.95 release has several new optimizations, new targets, new
languages and other new features as compared to EGCS 1.1 or GCC 2.8.
See the [3]new features page for a more complete list of new features
found in the GCC 2.95 releases.
The sources include installation instructions in both HTML and
plaintext forms in the install directory in the distribution. However,
the most up to date [4]installation instructions and [5]build/test
status are on the web pages. We will update those pages as new
information becomes available.
The GCC developers would like to thank the numerous people that have
contributed new features, test results, bugfixes, etc to GCC. This
[6]amazing group of volunteers is what makes GCC successful.
And finally, we can't in good conscience fail to mention some
[7]caveats to using GCC 2.95.2.
Download GCC 2.95.2 from the [8]GNU FTP server (ftp://ftp.gnu.org)
Download GCC 2.95.2 from the [9]GCC/EGCS FTP server
(ftp://gcc.gnu.org)
[10]Find a GNU mirror site
[11]Find a GCC/EGCS mirror site
For additional information about GCC please see the [12]GCC project
web server or contact the [13]GCC development mailing list.
_________________________________________________________________
Last modified on October 25, 1999.
References
1. http://gcc.gnu.org/gcc-2.95/regress.html
2. http://gcc.gnu.org/gcc-2.95/othertest.html
3. http://gcc.gnu.org/gcc-2.95/features.html
4. http://gcc.gnu.org/install/index.html
5. http://gcc.gnu.org/gcc-2.95/buildstat.html
6. http://gcc.gnu.org/thanks.html
7. http://gcc.gnu.org/gcc-2.95/caveats.html
8. ftp://ftp.gnu.org/pub/gnu/gcc/
9. ftp://gcc.gnu.org/pub/gcc/releases/index.html
10. http://www.gnu.org/order/ftp.html
11. http://gcc.gnu.org/mirrors.html
12. http://gcc.gnu.org/index.html
13. mailto:gcc AT gcc DOT gnu DOT org
- Raw text -