Release Notes for the Advance Toolchain 6.0 Version 6.0-3
| Features | Previous Releases | Support | Installation | Documentation | Legal Notices |
Features in 6.0-3
- The Advance Toolchain is a self contained toolchain which isn't reliant on the base system toolchain.
- Decimal Floating Point support in the following packages:
- GCC-4.7-ibm-r196357 [C,C++ (g++), fortran]
- GNU Binutils-2.23.20130219
- GLIBC-2.16-ibm
- LIBDFP 1.0.8-r20053
- GDB-7.4-20121128 with Python scripting
- Releases of the following packages in support of the Advance Toolchain:
- Valgrind-3.8.1
- Lib Perfmon-4.3.0-5a9a02b1
- OProfile-0.9.8-7e5e186b with Java (1.5 or later) support
- GMP-4.3.2
- MPFR-3.0.0
- MPC-0.8.2
- Libhugetlbfs 2.9
- Zlib 1.2.6
- Libauxv 0.1.0
- Libexpat 2.0.1
- Python 2.6.6
- Intel TBB 40_20111109oss
- Amino CBB 1.1
- Userspace RCU LIB0.6.4
- OpenSSL 1.0.1c
- Boost 1.50.0
- LibSPHDE 0.9-20120627
- TCMalloc 2.0
- POWER7 enablement.
- POWER7 Optimized scheduler.
- POWER7 Native DFP instruction support.
- POWER7 VMX/VSX enablement with auto-vector.
- POWER7 optimized system libraries.
- GCC creates binaries using --mcpu=power6 --mtune=power7 by default.
- GCC no longer supports Graphite loop optimizations.
Apart from package versions listed above:
- Fixed package requirements on Fedora 18.
- OProfile fixes for the following issues:
- operf does not properly sample already-running Java apps.
- 'Permission denied' error on early perf_events kernels when using operf.
- Jitdump when profiling Java applications.
- TCMalloc includes the following fix:
- The GNU C Library provides an optimized version of gettimeofday.
Previous releases
New features in 6.0-2
- Inclusion of Libpfm4 to enhance support for POWER7 events in OProfile's non-root single process profiling.
- Fixed the requirements of all packages.
- GCC fixes for the following issues:
- SPEComp2012 376.kdtree benchmark slowdown.
- Added support for Fedora 18 (same repository of RHEL 6).
- Inclusion of the runtime compatibility package advance-toolchain-at6.0-runtime-at5.0-compat-6.0-3 that allows AT 6.0 run applications built with AT 5.0.
- Binutils fixes for the following issues:
- 64-bit Power ld and gold now default to thread-safe PLT call stubs when building shared libraries.
- Valgrind fixes for the following issues:
- Valgrind used the wrong rounding mode for DFP.
- OProfile fixes for the following issues:
- Fix profile executions when the process ID is greater than 32768.
- operf mishandles events with the _GRP suffix.
- Allow events to be specified with or without _GRP suffix.
New features in 6.0-1
- Time zone is automatically set to system's time zone.
- New advance-toolchain-at6.0-selinux rpm, which sets the correct labels for key files so the Advance Toolchain works when SELinux is enabled.
- New ldconfig wrapper installed in /usr/sbin/ that wraps up the ldconfig of the system and all installed AT's.
- The cross compiler now provides GDB for remote debugging.
- GCC includes the following fixes:
- GDB includes the following fixes:
- OProfile includes the following fixes:
- Fix to address over-counting user context lost samples.
- Fix to record samples from forked processes.
New features in 6.0-0
- LIBDFP includes the following fixes:
- r19821 - Fixes for printf_dfp.c
- r15844 - Fix missing header declaration (features.h) in dfp/stdlib.h and dfp/wchar.h.
- TCMalloc includes the following fixes:
- Added the CACHELINE_ALIGNED macro for Power.
- Tuning in RSS usage.
- Tuning for small object allocations.
- Added support for the timebase value for Power.
- Correctly parse the CPU frequency values for Linux on Power.
- Fix wrong usage of a Power instruction in compare-and-swap.
- Fix for the malloc_hook test running on 64-bit Power.
- Optimized hooks for weakly consistent architectures.
- Fix ppc64 macro usage in getpc_test.
- OProfile now supports non-root single process profiling.
- Valgrind includes the following fixes:
- Support for Decimal Floating Point on IBM Power.
Documentation for each component can be found here:
Support
Customer support for the Advance Toolchain (AT) is provided in one of three ways:
- If you are using AT as directed by an IBM product team (ex.: IBM XL Compiler or PowerVM Lx86) please report suspected AT problems to IBM Support using that product name and entitlement.
- IBM's Support Line for Linux Offering in the United States now provides support for AT as well. If you have a contract with a U.S. Support Line for Linux contract, place a call to IBM Support:
- Dial 1-800-426-IBM-SERV
- Option #2 (Other business products or solutions)
- Option #2 (Software)
- Option #7 (Other OS/Linux)
- All other users can use an electronic forum that is monitored Monday through Friday. For questions regarding the use of or to report a suspected defect in AT, click here.
- Open the Advance Toolchain topic.
- Select 'Post a New Reply'.
- Enter and submit your question or problem.
- An initial response will be attempted within 2 business days.
Installation
The gpg public key gpg-pubkey-6976a827-5164221b will be provided in the repository where these release notes were found. This pubkey can be used to verify the authenticity of both the Advance Toolchain rpms and the repository contents.
Download this gpg-pubkey and import it into your rpm database using the following:
rpm --import gpg-pubkey-6976a827-5164221b
Note: on RHEL5, please install the ncurses package (64-bit) before installing the Advance Toolchain.
Using YUM
First, if you have never created an Advance Toolchain repository configuration file, you need to do so. Create the following file using the text editor of your choice as root:
/etc/yum.repos.d/at6.0.repo
and add the following content:
# Begin of configuration file
[at6.0]
name=Advance Toolchain Unicamp FTP
baseurl=ftp://ftp.unicamp.br/pub/linuxpatch/toolchain/at/redhat/RHEL6
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=ftp://ftp.unicamp.br/pub/linuxpatch/toolchain/at/redhat/RHEL6/gpg-pubkey-6976a827-5164221b
ftp://ftp.unicamp.br/pub/linuxpatch/toolchain/at/redhat/RHEL6/gpg-pubkey-3052930d-5175955a
# End of configuration file
To install execute yum install as root:
yum install advance-toolchain-at6.0-runtime
yum install advance-toolchain-at6.0-devel
yum install advance-toolchain-at6.0-perf
Answer y when YUM prompts for confirmation. Optionally, you may also install the advance-toolchain-at6.0-mcore-libs package, which contains the multi-core exploitation libraries (5.0-3 and above), and the advance-toolchain-at6.0-selinux package (5.0-7 and above), which enables compatibility with SELinux.
Warning: do not try to install the advance-toolchain-at6.0-selinux package if you do not have SELinux installed and enabled.
YUM supports package upgrades for new revision releases (i.e. 5.0-0 to 5.0-1). For new major releases (i.e. 4.0-1 to 5.0-0), please proceed as in a normal installation.
Manual installation
If you are installing the rpms manually you will need to install the rpms in the following order (due to prerequisites):
advance-toolchain-at6.0-runtime-6.0-3
advance-toolchain-at6.0-devel-6.0-3
advance-toolchain-at6.0-perf-6.0-3
Optionally, you may also install the advance-toolchain-at6.0-mcore-libs package, which contains the multi-core exploitation libraries (5.0-3 and above), and the advance-toolchain-at6.0-selinux package (5.0-7 and above), which enables compatibility with SELinux.
Warning: do not try to install the advance-toolchain-at6.0-selinux package if you do not have SELinux installed and enabled.
If you are updating a previous installation, you need to update as a batch, so rpm can solve the dependencies, i.e.:
rpm -Uvh advance-toolchain-at6.0-runtime-6.0-3.ppc64.rpm advance-toolchain-at6.0-devel-6.0-3.ppc64.rpm advance-toolchain-at6.0-perf-6.0-3.ppc64.rpm
The rpm command should always be run as root. Failure to do so will result in an error similar to this:
error: can't create transaction lock on /var/lib/rpm/__db.000
Important notes
- advance-toolchain-at6.0-runtime-compat-6.0-3: DO NOT INSTALL it on SLES11 and beyond or RHEL6 and beyond. These are intended for runtime compatibility on SLES10 and RHEL5 only (see below).
Installation on SLES10 and RHEL5 - Runtime compatibility
Users running applications on SLES10 or RHEL5 may install the compatibility rpm advance-toolchain-at6.0-runtime-compat-6.0-3 in order to get the Advance Toolchain runtime libraries.
Installation of the cross-compiler (Intel x86)
You can download advance-toolchain-at6.0-cross-6.0-3 and install in a x86 machine to build Power binaries on it. Binaries generated by the cross-compiler will run on a Power system with the same version of the Advance Toolchain installed.
Runtime compatibility between Advance Toolchain versions
Users running applications built with AT 5.0 may install the compatibility rpm advance-toolchain-at6.0-runtime-at5.0-compat-6.0-3 in order to run these applications on top of the Advance Toolchain 00.
After installing this package, run:
/etc/rc.d/init.d/at6.0-runtime-at5.0-compat start
Documentation
The official documentation for the Advance Toolchain is available at the IBM Power Linux Community website.
Legal notices
In order to comply with the GPL and LGPL licenses, the source code for the following packages is available:
- binutils
- gcc
- gdb
- glibc
- gmp
- Intel TBB
- libdfp
- libhugetlbfs
- linux kernel
- mpc
- mpfr
- oprofile
- Userspace RCU
- Valgrind
Please look for the advance-toolchain-at6.0-src-6.0-3.tgz file in the repository.
Amino CBB
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