Release Notes for the Advance Toolchain 8.0-7
Features in 8.0-7
- The Advance Toolchain is a self contained toolchain which isn't reliant on the base system toolchain.
- Base toolchain packages with additional support libraries, including some additional floating point support libraries:
- GNU Binutils - 2.25-7586fe6 online docs
- Expat XML Parser - 2.0.1 online docs
- GCC (GNU Compiler Collection) - 4.9.4-235655 [C, C++ (g++), fortran, Go] online docs
- GNU Standard C++ Library v3 (Libstdc++-v3) - 4.9.4-235655 online docs
- GNU Libgomp - 4.9.4-235655 online docs
- GNU C Library - 2.20-2feb372c online docs
- GNU Multiple Precision Library - 6.0.0-a online docs
- Libauxv - 1.0.0-04b3ddcb online docs
- Decimal Floating Point C Library - 1.0.10-fc7bc0ad online docs
- Libhugetlbfs - 2.18-ea3f6b27 online docs
- Libvecpf - 1.0.0-05eb00ee online docs
- GNU MPC Library - 1.0.2 online docs
- GNU MPFR Library - 3.1.2-9243 online docs
- Open Secure Sockets Layer - 1.0.1t online docs
- IBM Power Architecture Facilities Library - 0.1-2-a3865969 online docs
- Python - 3.4.3 online docs
- TCMalloc - 2.2.1-1dedb98 online docs
- ZLIB Compression Library - 1.2.8 online docs
- Development tools:
- GDB (GNU Debugger) - 7.8.1-77718493 online docs
- Go Tools - 1.2.2-43d00b09 online docs
- Additional performance and debugging tools:
- Libpfm - 4.6.0-cbd838f7 online docs
- OProfile - 1.1.0-fb3b082 with Java Support online docs
- Valgrind - 3.10.1 online docs
- Additional multi core support libraries:
- Boost - 1.55.0-bcb32779 online docs
- SPHDE - 1.0.0-70299bfc online docs
- SPHDE Compat - 1.0.0-f3a39432 online docs
- Userspace RCU - 0.8.8 online docs
- Thread Building Blocks - 4.2u1-20131003 online docs
- POWER8 enablement.
- POWER8 Optimized scheduler.
- Requires at least POWER7.
- POWER8 Transactional Memory enablement.
- POWER8 Crypto Operations enablement.
- POWER8 Fusion enablement.
- POWER8 optimized system libraries.
- GCC creates binaries using --mcpu=power7 --mtune=power8 by default.
- Support for AES instructions on OpenSSL.
- Support for Go Programming Language.
-
GCC provides:
- Fix for ICE following invalid register assignment.
- Fix ppc long double isinf .
- Fix ICE in gimple_expand_builtin_pow.
- Fix for libatomic fails to build with -Os on powerpc64-linux.
- Fix for HTM builtins aren't treated as compiler barriers on powerpc.
- Handle PRE_INC with invalid hard register.
- Fix powerpc unrecognizable insn.
- Fix linker error on powerpc64 bootstrap with -mcmodel=small.
-
The GNU C Library provides:
- Fix for CVE-2016-3706 - getaddrinfo: Stack overflow in hostent translation.
- Fix for CVE-2016-1234 - glob: buffer overflow with GLOB_ALTDIRFUNC due to incorrect NAME_MAX limit assumption.
- Fix for CVE-2015-8778 - hcreate, hcreate_r should fail with ENOMEM if element count is too large.
- Fix for CVE-2015-8779 - catopen() Multiple unbounded stack allocations.
- Fix for CVE-2016-3075 - nss_dns: Stack overflow in getnetbyname implementation.
- TCMalloc fixes an occasional deadlock on CEPH.
- OpenSSL provides 6 security advisories.
- Binutils provides:
- Fix for crash on fuzzed samples.
- Fix powerpc gas abort on invalid instruction fixups.
- Fix the computation of the addends for an ARM_TLS_LE32 reloc.
- The GNU C Library provides:
- Boost provides mem_cache_block lockfree.
- Advance Toolchain GCC now provides the build id to the linker.
- OpenSSL provides fixes for CVE-2015-3194, CVE-2015-3195, CVE-2015-3196, CVE-2016-0701 and CVE-2015-3197.
- Lock elision support was removed due some performance issues.
- GCC fix for an ICE: insn does not satisfy its constraints
- libdfp fix for fabs() is rertuning wrong values for 128-bit type
- OpenSSL provides fix for CVE-2015-1793 and more 7 security advisories
- Support for lock elision on glibc.
-
The GNU C Library provides:
- Fixes for the following vulnerabilities: CVE-2015-1472/CVE-2015-1473, CVE-2015-1781 and CVE-2014-8121.
- Fix for pow() returning incorrect results when using FMA.
- OpenSSL provides 14 security advisories.
- Inclusion of Go tools.
-
GCC fixes for:
- GCC generates an insn not found error message when using -m32 -mpowerpc64.
- gccgo fixes the value of GOARCH on POWER little-endian.
- gccgo added support for PPC64 ELF relocation types.
-
glibc provides:
- Optimized implementations for powerpc64/powerpc64 of the functions: strcpy, stpcpy, strncpy, stpncpy, strtok, strtok_r, strcmp and strncmp.
- Improved 64-bit implementation of strcat and strncat.
- Fix a memcmp performance regression on POWER7.
- Provide security fixes for: CVE-2012-3406, CVE-2014-7817 and CVE-2014-9402.
- Fix CVE-2014-9474 on GNU MPFR.
- OpenSSL provides 8 security advisories.
-
Binutils provides:
- Enable RELRO (RELocation Read-Only) by increasing the ELF_COMMONPAGESIZE to 64k.
- Fix CVE-2014-8737 and CVE-2014-8738.
- Binutils fixes for:
-
GDB fixes for:
- Fix internal-error when stack pointer is invalid.
- Fix the routines to collect and supply ptrace registers on ppc64le gdbserver.
- Fix read of vDSO symbols on ppc64le.
- New version of Valgrind itrace.
-
Valgrind fixes for:
- POWER AvSplat ought to load destination vector register with 16/16 bytes stored prior.
- Valgrind instrumented code crashes if compiled with -mcpu=power8.
- Enable plugins support on Binutils.
- GCC fixes for:
- Fix for Valgrind itrace not tracing the first call to library functions.
- Start distributing big endian and little endian packages in the same release.
- Create a cross compiler package with common files from big endian and little endian toolchains.
-
OProfile provides:
- Update events for IBM POWER8 processor.
- Support support for JVMTI.
- GCC adds support for lvsl and lvsr on powerpc64le.
Apart from package versions listed above:
New features in 8.0-7
Previous releases
New features in 8.0-6
New features in 8.0-5
New features in 8.0-4
New features in 8.0-3
New features in 8.0-2
New features in 8.0-1
New features in 8.0-0
New features in 7.1-1
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 Offerings now provides support for the Advance Toolchain as well. If you have a contract with a Support Line for Linux, place a call to IBM Support, e.g. for United States:
- 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.
- Log in.
- Start a topic.
- Enter and save your question or problem.
- An initial response will be attempted within 2 business days.
Installation
The gpg public key 6976a827-gpg.keywill be provided in the repository where these release notes were found. The public key can be used to verify the authenticity of both the Advance Toolchain install packages and the repository contents. After downloading the gpg public key, it can be imported as follows:
sudo apt-key add 6976a827-gpg.key
Using aptitude or apt
If the Advance Toolchain repository has not already been configured, that must be done first. As root, edit the following file, adding one of the lines as needed for the installed system:
/etc/apt/sources.list
- For i386 or amd64 workstations add the line:
- For POWER servers (ppc64le) add the line:
deb [arch=i386] ftp://ftp.unicamp.br/pub/linuxpatch/toolchain/at/ubuntu trusty at8.0
deb ftp://ftp.unicamp.br/pub/linuxpatch/toolchain/at/ubuntu trusty at8.0
To install using aptitude:
# If the repository has just been configured, refresh the aptitude cache sudo aptitude update # Install the Advance Toolchain packages sudo aptitude install advance-toolchain-at8.0-runtime \ advance-toolchain-at8.0-devel \ advance-toolchain-at8.0-perf \ advance-toolchain-at8.0-mcore-libs
To install using apt:
#If the repository has just been configured, refresh the apt cache sudo apt-get update #Install the Advance Toolchain packages sudo apt-get install advance-toolchain-at8.0-runtime \ advance-toolchain-at8.0-devel \ advance-toolchain-at8.0-perf \ advance-toolchain-at8.0-mcore-libs
Aptitude and apt support package upgrades for new revision releases (i.e. 7.1-0 to 7.1-1). For new major releases, install as if a new installation.
Manual installation for rpms
If you are installing the rpms manually you will need to install them in the following order (due to prerequisites):
advance-toolchain-at8.0-runtime-8.0-7 advance-toolchain-at8.0-devel-8.0-7 advance-toolchain-at8.0-perf-8.0-7 advance-toolchain-at8.0-mcore-libs-8.0-7 advance-toolchain-at8.0-runtime-at7.0-compat-8.0-7
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-at8.0-runtime-8.0-7.ppc64.rpm \ advance-toolchain-at8.0-devel-8.0-7.ppc64.rpm \ advance-toolchain-at8.0-perf-8.0-7.ppc64.rpm \ advance-toolchain-at8.0-mcore-8.0-7.ppc64.rpm \ advance-toolchain-at8.0-runtime-at7.0-compat-8.0-7.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
- Timezone files: If you need to use something different than Factory, then you should copy the timezone file you want from /opt/at8.0/share/zoneinfo to /opt/at8.0/etc/localtime
- advance-toolchain-at8.0-runtime-compat-8.0-7: DO NOT INSTALL it on RHEL7 and beyond. These are intended for runtime compatibility on RHEL6 only (see below).
Installation for runtime compatibility on previous distribution versions
Users running applications on previous distributions of SLES or RHEL may install the compatibility rpm advance-toolchain-at8.0-runtime-compat-8.0-7 in order to get the Advance Toolchain runtime libraries.
Installation of the cross-compiler (x86)
You can download advance-toolchain-at8.0-cross-8.0-7 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.
back to topDocumentation
The official documentation for the Advance Toolchain is available at the IBM Power Linux Community website.
back to topLegal 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
- Threading Building Blocks
- libdfp
- libhugetlbfs
- linux kernel
- mpc
- mpfr
- oprofile
- Userspace RCU
- Valgrind
Please look for the advance-toolchain-at8.0-src-8.0-7.tgz file in the repository.
Expat
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