linaro-toolchain

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[ACTIVITY] 11 - 15 April 2016

by Yao Qi

# Progress # * TCWG-545, 7 patches are approved, and 1 patch needs update, which needs the change somewhere else. [3/10] * TCWG-547, patch is pending. Pinged Pedro on IRC, to be reviewed, but no response. * TCWG-167, [3/10]. ARM reverse debugging fixes. Post one patch to fix test case. Testing another patch to give high priority of epilogue unwinder. * Upstream patch review, [2/10]. Spend more time on this due to long patch review backlog. The more I reviewed, the sooner my patches will be reviewed by others. * Misc, [2/10] ** Look at the slowness of gdb regression test in jekins validation, but can't reproduce it. ** Share some knowledge of watchpoint implementation in GDB to the people, who need the equivalent or similar things in LLDB. # Plan # * TCWG-545, TCWG-547, TCWG-167. -- Yao

9 years, 6 months

[ANNOUNCE] Linaro GCC 5 2016.04 snapshot

by Yvan Roux

The Linaro Toolchain Working Group (TCWG) is pleased to announce the 2016.04 snapshot of the Linaro GCC 5 source package. This monthly snapshot[1] is based on FSF GCC 5.3+svn234898 and includes performance improvements and bug fixes backported from mainline GCC. This snapshot contents will be part of the 2016.05 stable [1] quarterly release. This snapshot tarball is available on: http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.04/ Interesting changes in this GCC source package snapshot include: * Updates to GCC 5.3+svn234898 * Backport of [Bugfix] [AArch32] Fix PR target/70496 * Backport of [Bugfix] [AArch32] PR driver/70132: Avoid double fclose in driver-arm.c * Backport of [Bugfix] [AArch32] PR rtl-optimization/69904: Disallow copying/duplicating of load-exclusive operations * Backport of [Bugfix] [AArch32] PR target/62254 Fix for ARMv3 * Backport of [Bugfix] [AArch32] PR target/69614 * Backport of [Bugfix] [AArch32] PR target/70566 Check that condition register is dead in tst-imm -> lsls-imm Thumb2 peepholes * Backport of [Bugfix] [AArch32] PR testsuite/70553 * Backport of [Bugfix] [AArch64] PR rtl-optimization/70398 LRA * Backport of [Bugfix] PR 69400: Invalid 128-bit modulus result * Backport of [Bugfix] PR middle-end/70370 * Backport of [AArch32] 1/2 Cortex-R8 support * Backport of [AArch32] Add initial support for the Cortex-A32 * Backport of [AArch32] Add support for Cortex-A35 * Backport of [AArch32] Delete ASM_OUTPUT_DEF and fall back to default .set directive * Backport of [AArch64] 1/3 Enable CRC by default for armv8.1-a * Backport of [AArch64] 2/3 Rework the code to print extension strings (pr70133) * Backport of [AArch64] 3/3 Fix up for pr70133 * Backport of [AArch64] [ACLE][NEON] Implement vcvt*_s64_f64 and vcvt*_u64_f64 NEON intrinsics * Backport of [AArch64] Add extra tuning parameters for target processors * Backport of [AArch64] Add support for Cortex-A35 * Backport of [AArch64] Only update assembler .arch directive when necessary * Backport of [Testsuite] [AArch32] 2/2 Cortex-R8 support * Backport of [Testsuite] [AArch64] PR target/70113 fix pr63304_1 testcase * Backport of [Testsuite] [AArch64] Skip gcc.target/aarch64/assembler_arch_1.c if assembler does not support it * Backport of [Testsuite] Avoid GDB being blocked on signals * Backport of [Testsuite] Fix testsuite for Cortex-R8 support Subscribe to the important Linaro mailing lists and join our IRC channels to stay on top of Linaro development. ** 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 [1]. Stable source package releases are defined as releases where the full Linaro Toolchain validation plan is executed. [2]. Source package snapshots are defined when the compiler is only put through unit-testing and full validation is not performed.

9 years, 6 months

[ACTIVITY] 4 - 8 April 2016

by kugan

== Progress == * Type promotion pass (2/10) - Benchmarking * LTO (7/10) - Refactoring tree-vrp to share common parts - Looking at open enhancement bugzilla and working on them * Misc (1/10) - GCC Lists == Plan == * LTO and VRP

9 years, 6 months

[ACTIVITY] 4 - 8 April 2016

by Omair Javaid

== Progress == LLDB Buildbot Setup [TCWG-241] [9/10] -- Migration of local master/slave setup to Linaro LLVM lab. -- Setup slave to be able to connect to chromebook for lldb remote testing. -- Modified Android build scripts to work with chromebook in llvm lab. Miscellaneous [1/10] -- Meetings, emails, discussions etc. == Plan == LLDB Buildbot Setup [TCWG-241] -- Write a new factory for linux based lldb script commands -- Break down and tweak scripts with better logical steps. -- Migrate current setup to use new factory. LLDB development [TCWG-563] -- Look into failing tests on chromebook tester and see if some of them can be fixed.

9 years, 6 months

[ACTIVITY] Week 14

by Yvan Roux

== Progress == o Extended validation (5/10) * Dejagnu remote layout patch finalized and committed upstream (will be part of the coming 1.6 Dejagnu release) * GCC guality test fix committed in trunk. * Native armv8l validation unblocked, but still slow (more than 8hrs) Analysis on-going. * Start to work on enhancement: include cross validation and benchmark trigger. o Misc (5/10) * Lot of meetings (Internal, training, Benchmarking, ...) == Plan == o Monthly snaphsot (review backports, branch merge) o Continue on extended validation o GCC ARMv8.1 builtins fix.

9 years, 6 months

[ACTIVITY] 4 - 8 April 2016

by Prathamesh Kulkarni

== This Week == * LTO (6/10) a) tcwg-128: branch out of range error - Addressing upstream reviews - Patch needs approval from Honza b) section-anchors - Understanding balanced partitioning algorithm - Working on 2nd prototype: http://people.linaro.org/~prathamesh.kulkarni/section-anchors-1.diff - Looking at regressions caused due to patch: http://people.linaro.org/~prathamesh.kulkarni/section-anchors-1-compare-res… c) submitted patch to slightly refactor lto_balanced_map: - https://gcc.gnu.org/ml/gcc-patches/2016-04/msg00341.html d) tcwg-534: ipa-comdats - found why ICE happens e) ipa-vrp - Discussions with Kugan * Validation (1/10) - Passing -static-libstdc++ works to build chromium without using chromium's sysroot. - Review 11311 - Untested script to build chromium for arm, x86: http://people.linaro.org/~prathamesh.kulkarni/build-chromium.sh * Public Holiday (2/10) * Misc (1/10) - Meetings == Next Week == - LTO: section anchors - Validation

9 years, 6 months

[ACTIVITY] for week ending 8th April 2016

by Peter Smith

== Progress == Transition week into Linaro toolchain group from ARM to replace Bernie [*] - Some ARM handover work done. - Started looking into https://llvm.org/bugs/show_bug.cgi?id=24350 (TCWG-466 ADRL support) -- Checked behaviour of ADRL on armasm and GNU as -- Worked out what I need to do in LLVM to make ADRL work, looks like nothing hugely complicated but a lot of plumbing through various layers. - Started reading about AArch64 TLS descriptor implementation. I'm familiar with the AArch32 traditional model so I need to bridge the gap a bit. == Plans == - Post some review comments on Adhemeval's TLS patch with the hope of unblocking it. - Start implementing support for ADRL in the integrated assembler == Planned Absences == Holiday 18th - 22nd April (Attending ACCU conference in Bristol). I think I've put that in the shared holiday calendar correctly. [*] Hello to everyone I didn't manage to meet at Linaro Connect. I've been working in ARM's proprietary compiler team, with much of that time spent on armlink and the other non-compiler tools.

9 years, 7 months

[ACTIVITY]

by Renato Golin

== Progress == * Support (2/10) - Adding more tests to D18701, covering more cases - Investigating PR27250 (user error) * Buildbots (2/10) - More work around LLDB buildbots * Background (6/10) - Code review, meetings, discussions, general support, etc. - Android / AOSP discussions, meetings - Some lab planning, meetings - Helping newcomers, meetings

9 years, 7 months

[ACTIVITY] 1 April -- 8 April

by Yao Qi

# Progress # * TCWG-167, ARM reverse debugging bug fixes. [4/10] Four patches are committed. All FAILs are fixed if test case is compiled with -fomit-frame-pointer. Some FAILs when -fno-omit-frame-pointer are caused by epilogue unwinder doesn't parse epilogue correctly if FP is involved. File TCWG-562 to track it. * TCWG-545, TCWG-547, patches are pending. Maintainer is busy on something else. * Triage the regression gdb.base/jit.exp. [1/10] We need a pending patch series to address this issue. Ask Pedro how to review them. * TCWG-561, handle unavailable memory during frame unwinding. [3/10] Think about it and write a prototype. * Misc, patches review and meeting, [2/10]. # Plan # * Take a look at the slow native arm-linux-gnueabihf gdb test. * TCWG-562, Tweak epilogue unwinder to handle FP. * TCWG-545, TCWG-547, ping. * TCWG-561, finish the prototype. -- Yao

9 years, 7 months

Linaro toolchain: libstdc++.so: file format not recognized; treating as linker script

by Gunnar Arndt

My dear friends, I'm trying to build C++ code for Linux running on am ARM Cortex A8 (TI AM335x). For a first try, I'm using the simplest program I can think of: /* main.cpp */ int main() { return 0; } Under Linux with the 'normal' GCC, that works fine, but under Windows 7 with the Linaro toolchain, it fails with the following message: C:\firedect\dev\workspace\Test-Linux-ARM_1> "\Program Files (x86)\GNU Tools ARM Embedded\gcc-linaro-4.9-2016.02-i686-ming w32_arm-linux-gnueabi\bin\arm-linux-gnueabi-g++.exe" main.cpp c:/program files (x86)/gnu tools arm embedded/gcc-linaro-4.9-2016.02-i686-mingw32_arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.4/../../../../arm-linux-gnueabi/bin/ld.exe:c:/program files (x86)/gnu tools arm embedded/gcc-linaro-4.9-2016.02-i686-mingw32_arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.4/../../../../arm-linux-gnueabi/lib/libstdc++.so: file format not recognized; treating as linker script c:/program files (x86)/gnu tools arm embedded/gcc-linaro-4.9-2016.02-i686-mingw32_arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.4/../../../../arm-linux-gnueabi/bin/ld.exe:c:/program files (x86)/gnu tools arm embedded/gcc-linaro-4.9-2016.02-i686-mingw32_arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.4/../../../../arm-linux-gnueabi/lib/libstdc++.so:1: syntax error collect2.exe: error: ld returned 1 exit status C:\firedect\dev\workspace\Test-Linux-ARM_1> "\Program Files (x86)\GNU Tools ARM Embedded\gcc-linaro-5.3-2016.02-i686-ming w32_arm-linux-gnueabihf\bin\arm-linux-gnueabihf-g++.exe" main.cpp c:/program files (x86)/gnu tools arm embedded/gcc-linaro-5.3-2016.02-i686-mingw32_arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/5.3.1/../../../../arm-linux-gnueabihf/bin/ld.exe:c:/program files (x86)/gnu tools arm embedded/gcc-linaro-5.3-2016.02-i686-mingw32_arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/5.3.1/../../../../arm-linux-gnueabihf/lib/libstdc++.so: file format not recognized; treating as linker script c:/program files (x86)/gnu tools arm embedded/gcc-linaro-5.3-2016.02-i686-mingw32_arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/5.3.1/../../../../arm-linux-gnueabihf/bin/ld.exe:c:/program files (x86)/gnu tools arm embedded/gcc-linaro-5.3-2016.02-i686-mingw32_arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/5.3.1/../../../../arm-linux-gnueabihf/lib/libstdc++.so:1: syntax error collect2.exe: error: ld returned 1 exit status As you can see, I have tested two versions of the toolchain, which show the same behavior. Do you have any idea what's going wrong here? I'd appreciate any help you can provide! -- Kind regards, Gunnar Arndt

9 years, 7 months

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