linaro-toolchain

linaro-toolchain@lists.linaro.org

12 participants
5572 discussions

by Andrew Stubbs

My MOVW patch from last week left an unused variable that killed -Werror builds, so I posted a new patch to fix it. http://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg04141.html Ramana approved that in record time, so I've committed it. Tom has committed Mark Shinwell's BRANCH_COST patch upstream, so I have backported it to Linaro GCC 4.6. Maxim has committed his compound conditionals patch upstream, so I've backported that to Linaro GCC 4.6 also. Reviewed what other patches are queued for forward porting to 4.6/7, hoping that other's might have picked some of them off, and found no other progress just yet. Reduced the test case for GCC PR48783. For some reason it is retaining ".global" directives for symbols that have been optimized away, which leads to link errors in the kernel build. Tried to find out why the "discourage neon in A8" patch has caused test failures. I'm still not sure - I've asked Michael Hope to rerun the tests in case it's just random. Reposted the EABI half-precision patch with the extra bits Joseph says it needed in the version scripts. http://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg04251.html Looked at the linking problem reported by Barry Song on the linaro-toolchain list. * Other Public holidays on Monday and Friday. * Future I will be attending UDS in Budapest from 8th - 14th May. I shall continue to read my email, but will not be attending any calls. ---- Upstream patched requiring review: * NEON scheduling patch http://gcc.gnu.org/ml/gcc-patches/2011-02/msg01431.html * ARM Thumb2 addw/subw support. http://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg03783.html * ARM Thumb2 Replicated constants http://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg03883.html * ARM EABI half-precision function names (reposted 2011-04-27). http://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg04251.html

13 years, 12 months

linaro-android track

by Zach Pfeffer

All, I apologize for the broad distribution. Alexander and I have been getting the Android track going. We have the following topics. Most of these have subscribers. Would everyone mind taking a look through this list and subscribing or suggesting people who should be involved? I'll be getting more details into each of these this week. Hosting and Distribution of Linaro Builds https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-buil… This topic will focus on building and distributing Linaro Android builds. Topics will include: binary and source distribution, source and binary overlays (proprietary components and blobs from TI, Samsung, etc), license click-through, build and distribution location or method (host images and/or support on-demand image builds) and release tagging and naming. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-buil… Android Code Review https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-code… This discussion will focus on Android code review. Topics will include Gerrit, continuous integration, maintainers, reviewers and validation. We'll focus on integrating the Android development model with Linaro. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-code… Android Continuous Integration and Building https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-cont… This discussion will focus on Linaro Android continuous integration and builds. Topics include: infrastructure and validation requirements, test subsets for merges and unit testing. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-cont… Android LEB Validation and Test Suite https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-vali… This discussion will focus on LEB validation and test suites. Topics will include: Monkey, CTS, Monkeyrunner, unit-tests, continuous integration merge tests. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-vali… 2011 ELC Follow Up and Planning https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-2011… Linaro had a good meeting at the 2011 Embedded Linux Conference. Many things were discussed. This session will talk about next steps and future planning. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-2011… Android Hardfloat Experiment https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-hard… This session will discuss strategies to find hot-spots that could benefit from hardfloat without breaking overall binary compatibility with market apps. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-hard… Android LEB Documentation https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-leb-… This session will focus on discussing what documentation we need for LEB use and bundled with releases. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-leb-… Linaro Android Toolchain Distribution https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-tool… This session will discuss how to distribute the various components of the Linaro toolchain. We'll discuss NDK and platform distribution, support on Ubuntu, Fedora and Mac, what components do we need to publish and benchmarking toolchain improvements. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-tool… LEB Board Review and Deliverable Requirements https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-leb-… This discussion will talk about defining new member deliverable for Android LEBs, reviewing what's been delivered and assessing if we can raise the bar, discuss other low-cost high-volume board that currently exist or are on the way (Nexus One, Nexus S, Snowball), talk about LEB candidates, discuss cost ceilings (is the Elba board too expensive, for instance). Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-leb-… Open Source Development for Non-Application Cores https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-non-… This session will explore how to open up development for the various DSP and video cores that exist on many SoCs that are running Android to allow open source development of multimedia acceleration. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-non-… Upstream Android Build https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-upst… This topic will discuss which changes we can upstream. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-upst… ADB Shell Improvements https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-adb-… The adb shell lacks many features we take for granted. There is a need for a little more functionality, this session will discuss this. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-adb-… Android Beyond Phones and Advanced Topics https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-beyo… This session will discuss the future of Android. It'll be a brainstorming session to talk about topics like: dual lib (bionic/glibc) support in Android, bringing apt-get into Android, Android as a general computing platform, expanded enterprise networking, expanded packages, traditional Linux application support, security certification and headless Android. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-beyo… JTAG for the World https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-jtag This session will talk about improving tools for Ubuntu hosted JTAG tools, open JTAG script development and available JTAG platforms. Subscribe: https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-o-jtag… -Zach

13 years, 12 months

[ACTIVITY] Apr.25 -- May.01

by Chung-Lin Tang

== Last week == * CoreMark ARMv6/v7 regression patch set for combine: exchanged some comments on upstream list with Jeff Law. Started some testing on powerpc64, hit some issues with native bootstrap that I don't think I completely overcome, but at least completed a 32-bit bootstrap successfully. Unfortunately hit two regressions after running tests, will work on fixing this week, and update the upstream submission. * PR48783: unused reference to __aeabi_uldivmod. Investigated and found this to be a case where during RTL expand, .global directives for the __aeabi_* runtime symbols are directly inserted after some div optab didn't have the insns, and a libfunc was to be used. However later optimizations that removed the divisions left the .global symbols dangling with no uses. We could probably just avoid adding the directives completely for the EABI functions. * PR42017: ARM LR register not used in leaf functions. This is a case where DF takes EPILOGUE_USES as part of the initial live registers at end of functionn, and liveness computations never get to kill it, since there are no function calls to clobber in a leaf function. Submitted a patch to remove LR from EPILOGUE_USES before reload, awaiting review. * LP #689887: investigated more; not much progress, but found that the bootstrap fail happens only under --with-mode=thumb (Thumb-2). Under ARM mode the native bootstrap succeeds. == This week == * Try to fix the problems with the CoreMark combine patches. * Investigate more optimizations/bugs. * Prepare for travel to Budapest on Saturday.

13 years, 12 months

[ACTIVITY] April 26-28

by Revital Eres

Hello, - Continued analysing DENbench benchmarks. - Discussed the SMS patched with Ayal Zaks (SMS maintainer). - Booked the flights for Budapest summit. Thanks, Revital

13 years, 12 months

[ACTIVITY] April 27-28

by Ira Rosen

Hi, gcc-linaro/4.6 - if-conversion improvement (needed to vectorize Telecom/viterbi) - merged - auto-detection of vector size - proposed for merging GCC FSF - fixed PR 48765 on trunk - completed testig of vzip fix (PR 48252) on gcc 4.5 and gcc 4.6 Ira

13 years, 12 months

[ACTIVITY] weekly status

by Ken Werner

Hi, libunwind: * the initial support for resuming at a certain stack frame went upsream * learned about the various signal frame layouts on ARM * RT frames, non-RT frames for present and pre 2.6.18 kernels * implemented support for RT signal frame detection on ARM * started to implement support for unw_resume if signal frames are involved * attended a class on Friday Note: Monday was a public holiday. Regards Ken

14 years

[ACTIVITY] Apr 26 - Apr 29

by Ulrich Weigand

== GDB == * Committed series of patches to fix bug #615978 (Failure to software single-step into signal handler) to mainline and Linaro GDB. * Drafted blueprint linaro-toolchain-o-cross-debug == GCC == * Split bug #771900 (Linaro GCC 4.5 switch optimization breaks profiled bootstrap) off bug #759409 (Profiled bootstrap fails in GCC 4.5). Tracked down root cause of bug #759409 / PR middle-end/43085, and posted fix to gcc-patches. Mit freundlichen Gruessen / Best Regards Ulrich Weigand -- Dr. Ulrich Weigand | Phone: +49-7031/16-3727 STSM, GNU compiler and toolchain for Linux on System z and Cell/B.E. IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martin Jetter | Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen | Registergericht: Amtsgericht Stuttgart, HRB 243294

14 years

Toolchain summit blueprints

by Michael Hope

Hi there. The toolchain session blueprints for the summit are now up on Launchpad: https://blueprints.launchpad.net/linaro-toolchain?searchtext=toolchain-o You can check out the schedule here: http://summit.ubuntu.com/uds-o/track/linaro-toolchain/ although it's really only for show at the moment. Expect things to jump around as the constraints kick in. Please go through these blueprints and subscribe yourself to them. You can check your list of blueprints at: https://blueprints.launchpad.net/people/+me?searchtext=toolchain-o -- Michael

14 years

"BFD_ASSERT (out_attr[Tag_ABI_HardFP_use].i == 0) " assert

by Barry Song

Hi All, I found Jie has committed a patch "http://sourceware.org/ml/binutils/2010-05/msg00083.html". I am using the newest binary utils(2.21) and encounted the following ASSERT in arm_elf32.c: + if (out_attr[i].i == 0) + { + BFD_ASSERT (out_attr[Tag_ABI_HardFP_use].i == 0); My compiling options are as below, ASM_FLAGS := \ -gdwarf-2 \ -mfpu=vfp \ -mfloat-abi=softfp \ -mthumb-interwork C_FLAGS := \ $(ASM_FLAGS) \ -O3 -Wno-all \ -fno-optimize-sibling-calls \ -mlong-calls \ -ffunction-sections \ CPP_FLAGS := \ -fno-rtti \ -fno-exceptions \ LINK_FLAGS := \ --gc-sections -nostdlib \ -L ../stdlib \ -Wl,--as-needed \ -Wl,-no-enum-size-warning \ --cref \ ARFLAGS := \ rcs Can anyone give me any tip about why the assert is triggered? I have reported a bug here: http://sourceware.org/bugzilla/show_bug.cgi?id=12700 But not sure whether it is a bug. -barry

14 years

__aeabi_uldivmod undefined for sound/soc/codecs/snd-soc-wm8974.ko, snd-soc-wm8940.ko and snd-soc-wm8510.ko

by Barry Song

Hi All, I am using 2011.3 4.5 linaro GCC(armv7-a vfpv3d16) to compile kernel and modules. I select to compile all codecs as modules: "config SND_SOC_ALL_CODECS tristate "Build all ASoC CODEC drivers" " as M and I2C/SPI too. Then in the kernel dir, run "make" to get both vmlinux and modules, I found snd-soc-wm8974.ko, snd-soc-wm8940.ko and snd-soc-wm8510.ko will fail due to "__aeabi_uldivmod undefined". If i comment do_div() in these codec drivers, this issue will disappear. But it is strange there are many codecs which use do_div() too, for example: sound/soc/codecs/max98088.c sound/soc/codecs/max9850.c sound/soc/codecs/wm8350.c sound/soc/codecs/wm8400.c sound/soc/codecs/wm8510.c sound/soc/codecs/wm8580.c sound/soc/codecs/wm8753.c sound/soc/codecs/wm8804.c sound/soc/codecs/wm8900.c sound/soc/codecs/wm8904.c sound/soc/codecs/wm8940.c sound/soc/codecs/wm8955.c sound/soc/codecs/wm8960.c sound/soc/codecs/wm8974.c sound/soc/codecs/wm8978.c sound/soc/codecs/wm8985.c sound/soc/codecs/wm8990.c sound/soc/codecs/wm8991.c sound/soc/codecs/wm8993.c sound/soc/codecs/wm8994.c sound/soc/codecs/wm8995.c sound/soc/codecs/wm9081.c but others can pass the compiling except those 3 modules. Is it due to a wrong optimization by gcc? Other information: 1. old tool-chains we are using can pass the compiling of the 3 modules. 2. If i built all codecs into kernel image, these 3 drivers don't report error while compiling. Thanks Barry

14 years

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