Cool Tools - GCC for Sun® Systems 4.2.0 - Release Notes
Content
1. Documentation Information
In addition to these release notes, the following documentation is available
for GCC for SPARC Systems:
| Resource |
Description |
| GCC for SPARC Systems Porting Guide |
Information about porting from earlier versions of GCC to GCC for SPARC Systems |
| manual pages |
man pages for GCC for SPARC Systems are installed under /opt/gcc/man. |
| --help output |
A list of command-line options provided when gcc, g++, or c++ is invoked with the --help option |
| GCC online documentation |
Online documentation of GCC 4.2.0 on which GCC for SPARC Systems is based |
|
General information about the GCC for SPARC Systems project can be found on
the following web page:
GCC for SPARC Systems Project Home Page
2a. System Requirements - hosted on SPARC/Solaris systems
| OS: |
SolarisTM 9 or SolarisTM 10 Operating System |
| CPU: |
UltraSPARC® II processor or above |
| Disk space: |
130Mbyte |
| Memory: |
512M minimum, 1G recommended |
| Swap: |
1G minimum, 2G recommended |
2.1 Required OS Patches
For proper operation of the GCC for SPARC Systems compiler, the following
Solaris patches should be installed on any system on which the GCC for SPARC
Systems compilers are to be run:
| Solaris Version |
Component |
Patch ID |
| 9 |
Linker |
112963-22 |
| 9 |
libmtsk |
117560-03 |
| 9 |
libm |
111722-04 |
| 10 |
Linker |
117461-04 |
| 10 |
libmtsk |
120753-01 |
| 10U1 |
elfexec |
121694-01 |
|
The appropriate libmtsk patch must be applied to any system
on which automatically parallelized programs generated by GCC for SPARC
Systems are to be run.
The elfexec patch must be applied on all Solaris 10 Update 1 systems
on which binaries instrumented or optimized by BIT will be run.
Each of these patches may be downloaded from
http://sunsolve.sun.com.
Note that the last two digits of each patch ID is its version number.
Patches with version numbers higher than the ones listed above are also
acceptable.
If you use components of GNU binutils
to process files compiled with -xbinopt=prepare by
"GCC for SPARC Systems", you should use binutils version 2.15.96 or
later.
2b. System Requirements - hosted on Intel and AMD Solaris systems
| OS: |
SolarisTM 10 Operating System |
| CPU: |
Intel or AMD processor |
| Disk space: |
130Mbyte |
| Memory: |
512M minimum, 1G recommended |
| Swap: |
1G minimum, 2G recommended |
3. Installation
GCC for Sun Systems can be installed by downloading and installing Solaris packages.
For details on where to obtain the packages and how to install them,
please see the
installation guide.
4. New Features
This release builds upon GCCFSS release 4.0.4 by improving the runtime performance and ability to debug g++ programs.
This release is easier to install than our 4.0.2 and 4.0.3 releases. This release can
be installed by any user without having to be superuser.
The release is contained in tar balls which can be extracted into any directory where the user has
write permission.
OpenMP is a major new feature of GCCFSS 4.2.0. Programs compiled with GCCFSS
-fopenmp should not be linked with programs compiled with GCC -fopenmp. GCCFSS
OpenMP uses faster runtime support routines that cannot be mixed with the GCC
OpenMP runtime support routines.
The profile feedback options have been disabled in the Intel and AMD Solaris hosted
compiler. The next release will reenable these options. Please note the
SPARC/SOLARIS compiler does have profile feedback support.
5. Differences in Command-Line Options from GCC 4.2.0
The man pages and the output of the --help option of the
GCC for Sun Systems compilers list all of the accepted command-line
options.
All compiler options accepted by GCC 4.2.0 are also accepted by GCC for Sun
Systems. However, some of these options have no effect in GCC for Sun Systems.
See the
GCC for Sun Systems Porting Guide
for more details.
GCC for Sun Systems also supports several options that are not supported by GCC 4.2.0.
These include -parallel, -fast, and -xipo.
See the
GCC for Sun Systems Porting Guide for more details.
Certain restrictions must be observed when using the new -xbinopt=prepare
option. These are described in the document
Using
-xbinopt=prepare.
6. Differences in Command-Line Options from GCC for SPARC Systems release 4.0.4
A few minor flags and values for flags have been added.
7. Debugging Issues
GCC for Sun Systems generates dwarf2 debug information with -g
compilation. Currently the generated debug information is incomplete in
some respects. This section describes user observable issues when
debugging GCC for Sun Systems generated binaries using the gdb
debugger, resulting from incomplete debug information. Although the
description focuses mainly on -O0 compilation, similar issues apply to
compilation at other optimization levels.
Known issues with -O0 debugging of C/C++ programs
can be found in the list of open bugs on www.sun.com (product: GCCFSS).
As of July 1st, 2008 all of the GCC for Sun Systems problems reported
on the GCC For Sun Systems Forum and CoolTools Forum have been fixed in
version 4.2.0.
The bugs.sun.com (product: GCCFSS)
contains known bugs with GCC for Sun Systems. At this time it is not possible to submit bugs via bugs.sun.com. Bugs still need to be submitted via
GCCFSS Forum
9. Support
GGC for Sun Systems uses a community support model. The
GCCFSS Forum
is also used for reporting bugs. The
bugs.sun.com (product GCCFSS) can be used to see the status of GCCFSS bugs.
If you want to receive update notifications and other announcements,
sign up for the appropriate
mailing list.
The January 2008 release of GCC for SPARC Systems is still
available.
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