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[ANNOUNCE] Linaro Binary Toolchain Release GCC 5.4-2017.01

by Ryan Arnold

The Linaro Binary Toolchain ============================ The Linaro GCC 5.4-2017.01 Release is now available. Notice: All Linaro GCC 5 series toolchain users should migrate to the latest version of the Linaro GCC 5 toolchain in order to mitigate potential security exposure to CVE-2015-7547. See the NEWS section below for details. Download release packages from: (sources) http://releases.linaro.org/components/toolchain/gcc-linaro/5.4-2017.01/ (binaries) http://releases.linaro.org/components/toolchain/binaries/5.4-2017.01/ Previous snapshots and release-candidates are at: http://snapshots.linaro.org/components/toolchain/binaries/ Previous releases are at: http://releases.linaro.org/components/toolchain/binaries/ A description of what each ABI or triplet is can be found at: https://collaborate.linaro.org/display/TCWGPUB/ARM+and+AArch64+Target+Tripl… Host Requirements ================== Linaro officially supports the current and previous Ubuntu LTS releases (as of the time of this release). This does not mean that the toolchain will not work on other/older Linux distributions. See the following for the life-time of Ubuntu LTS releases. https://wiki.ubuntu.com/Releases The host system upon which the cross-compiler will run requires a minimum of glibc 2.14, because of API changes to glibc's memcpy API. https://bugs.linaro.org/show_bug.cgi?id=1869 Package Versions ================= Linaro GCC 5.4-2017.01 http://releases.linaro.org/components/toolchain/gcc-linaro/5.4-2017.01/ Linaro glibc 2.21 (linaro/2.21) https://lists.gnu.org/archive/html/info-gnu/2015-02/msg00001.html Linaro newlib 2.1.0-2014.09 (linaro_newlib-branch) https://sourceware.org/ml/newlib/2013/msg01128.html Linaro binutils 2.25 (linaro_binutils-2_25-branch) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob_plain;f=bin… FSF GDB 7.12 (gdb-7.12-branch) https://lists.gnu.org/archive/html/info-gnu/2016-10/msg00007.html Linaro toolchain package git branches are hosted at: http://git.linaro.org/toolchain NEWS for GCC 5 (as of Linaro GCC 5.4-2017.01) ============================================== * The soft-float targeted toolchains have now been configured to generate code using -mfloat-abi=soft. This makes arm-linux-gnueabi and armeb-linux-gnueabi toolchains use the “soft” FP ABI instead of “softfp”. Historically, TCWG’s toolchains provided both “soft” and “softfp” multilibs, but when switching from crosstool-ng to cbuildv2/abe (which support a single multilib) “softfp” multilib was choosen. Using “-mfloat-abi=soft” is a better choice for a gnueabi toolchain, since it doesn’t require cores to have a floating-point unit. This change should not break compatibility for toolchain users since the ABI will stay the same. The compiler and glibc libraries will not refernce FP instructions. * Include GCC fix for Linaro bugzilla #2562: ARM GCC 5.2 call weak function instead of strong when called through pointer https://bugs.linaro.org/show_bug.cgi?id=2562 * Include GCC fix for Linaro bugzilla #1925: [regression] FAIL: libgomp.fortran/retval1.f90 -O1 execution test https://bugs.linaro.org/show_bug.cgi?id=1925 * Include GCC fix for Linaro bugzilla #2185: aarch64-linux-gnu-g++ internal compiler error: in curr_insn_transform https://bugs.linaro.org/show_bug.cgi?id=2185 * Backported glibc patch to simplify static malloc interposition [BZ #20432] to correct user identified issue. commit 058b5a41d56b9a8860dede14d97dd443792d064b Author: Florian Weimer Date: Fri Aug 26 22:40:27 2016 +0200 malloc: Simplify static malloc interposition [BZ #20432] * Host binaries for x86_64 linux hosts now have symbols and debug information stripped in order to reduce the size of the toolchain binary archives. This reduces the archive size from 1.1G to 580M for aarch64-linux-gnu target with the gcc-5-branch. * Removed .la files from binary toolchain archive as these files break autotools builds. https://bugs.linaro.org/show_bug.cgi?id=2764 * The mingw toolchains are now archived using the rsync -L option in order to avoid problems with Windows extractors and symbolic links. https://review.linaro.org/#/c/16415/ This resolves the following user bugs: https://bugs.linaro.org/show_bug.cgi?id=2684 https://bugs.linaro.org/show_bug.cgi?id=2192 https://bugs.linaro.org/show_bug.cgi?id=2762 * Copy the libwinpthread DLL into the bin directories so it gets into the tmp directory before tar is run. https://review.linaro.org/#/c/13723/ * Increment binutils release date to 2016_02 to reflect the most recent commit: commit ef90a4718f535cbe6345b4e7168baea7b1972abf Author: Matthew Wahab <matthew.wahab(a)arm.com> Date: Tue Jan 12 16:35:30 2016 +0000 [ARM] Support ARMv8.2 RAS extension. * Baremetal sysroot names now contain 'newlib' rather than 'glibc'. * Manifests now contain relative paths rather than absolute paths. * Now generating proper manifest files. * Fixed pi requeue support in glibc 2.21 while allowing the existing 2.21 minimum kernel default setting. This was checked into the linaro/2.21/master branch. commit a68cafa11c500d8a49a3014c43c5152859d037ae Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Tue May 17 10:16:39 2016 -0300 Add runtime check for __ASSUME_REQUEUE_PI (BZ# 18463) commit 6e5cb616b5b442ce8b2664ad673c0acf42a490ac Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Mon May 16 19:01:10 2016 -0300 Remove __ASSUME_SET_ROBUST_LIST commit 9ac61c0047295696cbcdbc26bdc174c7bd25a3c8 Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Mon May 16 10:35:25 2016 -0300 Remove __ASSUME_FUTEX_LOCK_PI * Backported support into GCC for Cortex-A32, Cortex-A35, and Cortex-R8. * Applied fix for CVE-2015-7547 - A stack-based buffer overflow in glibc's getaddrinfo() was corrected in glibc 2.23 and backported into glibc 2.21. https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html * ARMv8.1 Instruction Support - ARMv8.1 instructions support was checked into GCC and binutils. It has been backported into Linaro GCC 5.3 and Linaro binutils 2.25. * Backported -Bsymbolic-functions into Linaro binutils 2.25. * Performance related backports from Linaro GCC 5.2-2015.11, Linaro GCC 5.2-2015.12, and Linaro GCC 5.3-2016.01-1, Linaro GCC 5.3-2016.02, Linaro GCC 5.3-2016.03, Linaro GCC 5.3-2016.04, Linaro GCC 5.4-2016.06, Linaro GCC 5.4-2016.10 and Linaro GCC 5.4-2016.12 have been included. See the following Linaro GCC snapshots: http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.2-2015.11/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2015.12/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.01-1/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.02 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.03 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.04 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.4-2016.06 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.4-2016.10 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.4-2016.12 Contact Linaro =============== File bugs at http://bugs.linaro.org For Linaro member support see http://support.linaro.org For Linaro community support email linaro-toolchain(a)lists.linaro.org -- Ryan S. Arnold | Director - Linaro Core Technology and Tools ryan.arnold(a)linaro.org | ryanarn on #linaro-tcwg @ freenode.irc.net T: +1-612-424-1861

9 years, 2 months

[ANNOUNCE] Linaro Binary Toolchain Release GCC 4.9-2017.01

by Ryan Arnold

The Linaro Binary Toolchain ============================ The Linaro GCC 4.9-2017.01 Release is now available. Notice: All Linaro GCC 4.9 series toolchain users should migrate to the latest version of the Linaro GCC 4.9 toolchain in order to mitigate potential security exposure to CVE-2015-7547. See the NEWS section below for details. Download release packages from: http://releases.linaro.org/components/toolchain/gcc-linaro/4.9-2017.01/ http://releases.linaro.org/components/toolchain/binaries/4.9-2017.01/ Previous snapshots and release-candidates are at: http://snapshots.linaro.org/components/toolchain/binaries/ Previous releases are at: http://releases.linaro.org/components/toolchain/binaries/ A description of what each ABI or triplet is can be found at: https://collaborate.linaro.org/display/TCWGPUB/ARM+and+AArch64+Target+Tripl… Host Requirements ================== Linaro officially supports the current and previous Ubuntu LTS releases (as of the time of this release). This does not mean that the toolchain will not work on other/older Linux distributions. See the following for the life-time of Ubuntu LTS releases. https://wiki.ubuntu.com/Releases The host system upon which the cross-compiler will run requires a minimum of glibc 2.14, because of API changes to glibc's memcpy API. https://bugs.linaro.org/show_bug.cgi?id=1869 Package Versions ================= Linaro GCC 4.9-2017.01 http://releases.linaro.org/components/toolchain/gcc-linaro/4.9-2017.01/ FSF eglibc 2.19 (linaro_eglibc-2_19) http://www.eglibc.org/cgi-bin/viewvc.cgi/branches/eglibc-2_19/libc/NEWS?vie… Linaro newlib 2.1.0-2014.09 (linaro_newlib-branch) https://sourceware.org/ml/newlib/2013/msg01128.html Linaro binutils 2.24 (linaro_binutils-2_24-branch) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob_plain;f=bin… FSF GDB 7.10 (gdb-7.10-branch) https://sourceware.org/ml/gdb-announce/2015/msg00005.html Linaro toolchain package git branches are hosted at: http://git.linaro.org/toolchain NEWS for GCC 4.9 (as of Linaro GCC 4.9-2017.01) ============================================== * The soft-float targeted toolchains have switched to -mfloat-abi=soft from -mfloat-abi=softfp. This makes arm-linux-gnueabi and armeb-linux-gnueabi toolchains use “soft” FP ABI instead of “softfp”. Historically, TCWG’s toolchains provided both “soft” and “softfp” multilibs, but when switching from crosstool-ng to cbuildv2/abe (which support a single multilib) “softfp” multilib was choosen. Using “-mfloat-abi=soft” is a better choice for a gnueabi toolchain, since it doesn’t require cores to have a floating-point unit. This change should not break compatibility for toolchain users since the ABI will stay the same. The compiler and glibc libraries will not refernce FP instructions. * Host binaries for x86_64 linux hosts now have symbols and debug information stripped in order to reduce the size of the toolchain binary archives. This reduces the archive size from 830M to 480M for aarch64-linux-gnu target with the gcc-4.9-branch. * Removed .la files from binary installation as these files break autotools builds. https://bugs.linaro.org/show_bug.cgi?id=2764 * The mingw toolchains are now archived using the rsync -L option in order to avoid problems with Windows extractors and symbolic links. https://review.linaro.org/#/c/16415/ This resolves the following user bugs: https://bugs.linaro.org/show_bug.cgi?id=2684 https://bugs.linaro.org/show_bug.cgi?id=2192 https://bugs.linaro.org/show_bug.cgi?id=2762 * Copy the libwinpthread DLL into the bin directories so it gets into the tmp directory before tar is run. https://review.linaro.org/#/c/13723/ * Applied fix for CVE-2015-7547 - A stack-based buffer overflow in glibc's getaddrinfo() was corrected in glibc 2.23 and backported into Linaro eglibc 2.19 (linaro_eglibc-2_19). https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html Contact Linaro =============== File bugs at http://bugs.linaro.org For Linaro member support see http://support.linaro.org For Linaro community support email linaro-toolchain(a)lists.linaro.org -- Ryan S. Arnold | Director - Linaro Core Technology and Tools ryan.arnold(a)linaro.org | ryanarn on #linaro-tcwg @ freenode.irc.net T: +1-612-424-1861

9 years, 2 months

[ANNOUNCE] Linaro GCC 5 and 6 2017.02 snapshots

by Yvan Roux

The Linaro Toolchain Working Group (TCWG) is pleased to announce the 2017.02 snapshot of both Linaro GCC 5 and Linaro GCC 6 source packages. Linaro GCC 6 monthly snapshot[1] is based on FSF GCC 6.3+svn245201 and includes performance improvements and bug fixes backported from mainline GCC. This snapshot contents will be part of the 2017.05 stable[2] quarterly release. This snapshot tarball is available on: http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.02/ Interesting changes in this GCC source package snapshot include: * Updates to GCC 6.3+svn245201 * Linaro BZ #2562: [PR target/78253] Call weak function instead of strong when called through pointer * Backport of [Bugfix] [AArch32] PR target/71270 Fix neon_valid_immediate for big-endian * Backport of [Bugfix] [AArch32] PR target/77439 Wrong code for sibcall with longcall, APCS frame and VFP * Backport of [Bugfix] [AArch32] PR target/78364 Add proper restrictions to zero and sign_extract patterns operands * Backport of [Bugfix] [AArch32] PR target/78694 Avoid invalid RTL sharing in minipool code * Backport of [Bugfix] [AArch32] PR target/79145 Fix xordi3 expander for immediate operands in iWMMXt * Backport of [Bugfix] [AArch64] PR target/78362 Make sure to only take REGNO of a register * Backport of [Bugfix] PR rtl-optimization/79121 Incorrect expansion of extend plus left shift * Backport of [AArch32] 1/2 Use generic_extra_costs in all remaining tuning structs * Backport of [AArch32] 2/2 Remove old rtx costs * Backport of [AArch32] arm_neon.h: Add artificial and gnu_inline * Backport of [AArch32] Improve Cortex-a53 integer scheduler * Backport of [AArch32] Improve Thumb allocation order * Backport of [AArch32] Merge negdi2 patterns * Backport of [AArch64] 1/2 Add bfx attribute * Backport of [AArch64] 2/2 Add bfx attribute * Backport of [AArch64] Fix bootstrap on aarch64-*-freebsd * Backport of [AArch64] Improve SHA1 scheduling * Backport of [AArch64] Purge leftover occurrences of aarch64_nopcrelative_literal_loads * Backport of [AArch64] Split X-reg UBFIZ into W-reg LSL when possible * Backport of [AArch64] Split X-reg UBFX into W-reg LSR when possible * Backport of [AArch64] Tweak Cortex-A57 vector cost * Backport of [Testsuite] [AArch64] PR target/77634 some vectorized testcases fail with -mcpu=thunderx * Backport of [Testsuite] [AArch64] PR target/77635 load/store pair testcases need to use -mcpu=generic * Backport of [Testsuite] Fix format string in AdvSIMD tests * Backport of [Testsuite] Require shared effective target for some lto.exp tests Linaro GCC 5 monthly snapshot[1] is based on FSF GCC 5.4+svn245200 and includes performance improvements and bug fixes backported from mainline GCC. This snapshot contents will be part of the next maintenance release. This snapshot tarball is available on: http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.4-2017.02/ Interesting changes in this GCC source package snapshot include: * Updates to GCC 5.4+svn245200 * Linaro BZ #2785: PR target/66785 Internal compiler error in record_operand_use * Linaro BZ #2562: [PR target/78253] Call weak function instead of strong when called through pointer ** Linaro Toolchain Development "mailing list": http://lists.linaro.org/mailman/listinfo/linaro-toolchain ** Linaro Toolchain IRC channel on irc.freenode.net at @#linaro-tcwg@ * Bug reports should be filed in bugzilla against GCC product: http://bugs.linaro.org/enter_bug.cgi?product=GCC * Interested in commercial support? inquire at "Linaro support": mailto:support@linaro.org

9 years, 2 months

[ACTIVITY] 6-10 February 2017

by Yao Qi

~ Progress ~ * AArch64 OpenOCD. TCWG-947, [2/10] After asking Peter G. about OpenOCD + Hikey, he sent me his working Hikey+Cable to me. * SVE GDB patches review. TCWG-1040, [4/10] Review some patches, and suggest Alan how to split the patch to easily make some progress. Think about the needed change to GDB target description. * Kernel awareness debugging patch review. [2/10] Manage to write a small test case so that we can somehow test the new feature in user space in gdb testsuite. Think about how does Linaro move on about this project. * Schengen visa application. [2/10] Visa application centre doesn't accept my documents because my documents copy are tow-side printed. Has to book another appointment and go to London again . ~ Plan ~ * TCWG-947, Try opencod with Peter G.'s board. * TCWG-1040, prototype of new GDB/GDBserver target description. -- Yao Qi

9 years, 2 months

[ACTIVITY] 6-10 February 2017

by Christophe Lyon

== Progress == * Validation - more work on use of containers * GCC - reported a few failures upstream - added a few missing poly64_t intrinsics (arm, aarch64) * misc (conf-calls, meetings, emails, ....) == Next == * ABE & Jenkins jobs patches reviews and bug fixes

9 years, 2 months

[ACTIVITY] Week 06

by Yvan Roux

o Teaching activities (4/10) == Progress == o Linaro GCC/Validation (2/10) * GCC 4.9 2017.01: - Release deployed * GCC 5.4 2017.01: - Release deployed * GCC 6.3 and 5.4 2017.02 source snapshots: - FSF branch merges done - snapshot process on-going o LLVM (1/10) * Familiarizing with sources, tcwg helpers, etc ... o Misc (3/10) * Various meetings and discussions. == Plan == o release source snapshots o tree-reassociation

9 years, 2 months

[ACTIVITY] 6 - 10 Feb 2017

by Prathamesh Kulkarni

== This Week == * gimple-fe (4/10) a) Add support for abs_expr b) Add support for fma_expr * TCWG-1010 (4/10) - Continue working on prototype, dealing with unexpected ICE's :( * Misc (2/10) - Reading up on gcc's inliner - Meetings == Next Week == - TCWG-1010, TCWG-1005, gimple-fe - Benchmarking LTO using spec2xxx-utils on tx1/tk1

9 years, 2 months

[ACTIVITY] 6 - 10 Feb 2017

by Omair Javaid

=== This Week === LLDB ARM/AArch64 hardware breakpoints [TCWG-717] [9/10] -- Submitted AArch64 hardware breakpoint patch for review. -- Updates after upstream comments. -- Added Arm hardware breakpoint support code. -- Testing and debugging of Arm code on android arm device. Miscellaneous Activities [1/10] -- Meetings, Emails etc. === Next Week === LLDB ARM/AArch64 hardware breakpoints [TCWG-717] -- Write breakpoint command based test-cases. -- Write RSP packets based test-cases. -- Submit patch for review after edits and upgrades. GDB Kernel Awareness -- Background study and understand existing patches

9 years, 2 months

[ACTIVITY] 6 - 10 February 2017

by Peter Smith

== Progress == [TCWG-617] Upstreamed a patch to make copy relocations use synthetic sections. This allows us to remove the output section relative dynamic relocation which is important for range extension Thunks Did some design work for range extension Thunks. Did some refactoring to merge PLT and IFunc PLT at maintainers request [BUD17] Researched my forthcoming Connect presentation and wrote about 3/5 of the slides == Plan == Finish Connect presentation early next week as I'll be on holiday the week before Connect. Start implementing range extension Thunks.

9 years, 3 months

[ACTIVITY] 6 - 10 February 2017

by Diana Picus

== Progress == * [ARM GlobalISel] Add support for fp arguments [TCWG-1029] [5/10] - Committed support for single precision hard float and soft-fp ABIs - Work in progress on supporting double precision * Misc [5/10] - Meetings, mailing lists, code reviews - Reverted / fixed a few patches that broke the buildbots - Tested and uploaded binaries for release candidate 2 on AArch64 == Plan == * More GlobalISel

9 years, 3 months

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