- linaro-toolchain - lists.linaro.org

[ACTIVITY] week ending 26 Apr 2020

by Richard Henderson

[VIRT-349 # QEMU SVE2 Support ] More progress on insn implementation. More patches from Stephen Long merged. More good review from Laurent Desnogues. Down to perhaps 30 insns remaining, and then figuring out some miscomparisons reported by Laurent, but not diagnosed. [VIRT-344 # ARMv8.5-MemTag ] Fixed an exception return bug vs PSTATE.TCO. [VIRT-327 # Richard's upstream QEMU work ] Posted some tcg patch sets for 5.1. Worked on the sparc regression Alex reported vs TEMP_CONST. I've set that aside for now; I need to come up with a new scheme to debug that one. r~

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[ACTIVITY] week ending Apr. 26 2020

by Alex Bennée

Upstream Work ([VIRT-109]) ========================== - posted [PATCH for 5.1 v1 00/14] guest_base, gdbstub and Travis Message-Id: <20200423170557.31106-1-alex.bennee(a)linaro.org> - spent some time looking at rth's const sparc regression - posted [RFC PATCH] translate-all: include guest address in out_asm output Message-Id: <20200424173914.2957-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Completed Reviews [5/5] ======================= [PATCH 0/7] tcg: Clean up tcg_gen_gvec_dupi interface Message-Id: <20200418150411.1831-1-richard.henderson(a)linaro.org> - CLOSING NOTE [2020-04-20 Mon 14:33] Nice cleanup Added: <2020-04-19 Sun> [PATCH 0/3] tcg: Improve vector tail clearing Message-Id: <20200418155651.3901-1-richard.henderson(a)linaro.org> - CLOSING NOTE [2020-04-20 Mon 16:33] Nice cleanup Added: <2020-04-19 Sun> [PATCH 0/4] scripts: More Python fixes Message-Id: <20200421094216.24927-1-f4bug(a)amsat.org> [PATCH v2 00/36] tcg 5.1 omnibus patch set Message-Id: <20200422011722.13287-1-richard.henderson(a)linaro.org> [PATCH for-5.0? 0/3] Make docs build work with Sphinx 3 Message-Id: <20200411182934.28678-1-peter.maydell(a)linaro.org> - CLOSING NOTE [2020-04-23 Thu 15:15] Apparently I reviewed it last week. Added: <2020-04-11 Sat> Absences ======== - Home-schooling in mornings Current Review Queue ==================== * [PATCH 0/8] run-coverity-scan: misc improvements, especially for docker mode Message-Id: <20200422172351.26583-1-pbonzini(a)redhat.com> Added: <2020-04-23 Thu> * [PATCH 0/6] target/arm: Restrict TCG cpus to TCG accel Message-Id: <20200421131926.12116-1-philmd(a)redhat.com> Added: <2020-04-21 Tue> * [PATCH 0/4] linux-user/arm: Fix BKPT, SVC immediate handling Message-Id: <20200420212206.12776-1-peter.maydell(a)linaro.org> Added: <2020-04-21 Tue> * [PATCH v8 00/74] per-CPU locks Message-Id: <20200326193156.4322-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> -- Alex Bennée

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[ACTIVITY] report week ending 24 Apr

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - We needed an rc4 (which I wasn't very surprised about), so more release wrangling again. - Noticed some bugs in how we set ID registers for the AArch64 'max' CPU; sent patches (one of which seemed worth getting into rc4) - There's been a long-standing problem where a linux-user QEMU running on a 64-bit host and emulating a 32-bit guest can't deal with the 64-bit hash 'offsets' from ext4 getdents, which causes guests using newer glibc to fail. Linus Walleij wrote a kernel patch which allows QEMU to request that the kernel gives it hash values that will fit into 32 bits. I wrote an RFC QEMU patch that would use this and tested that this does indeed solve the problem. Discussion is continuing on the kernel size about what the correct API for this is, but the principle that the kernel should change seems to be accepted. - A bug was raised that BKPT for arm linux-user wasn't causing SIGTRAP; sent patches fixing that and some other issues I noticed in that bit of the code while I was fixing it. - code review: + a patch adding proper FIFO emulation to the PL011 UART model + rth's patchset improving codegen of neon integer-compare-vs-0 insns + xilinx patchset to disable unsupported FDT firmware nodes + patchset adding kaslr-seed properties to the virt board dtb (mostly useful for OP-TEE) * VIRT-364 [QEMU support for ARMv8.1-M extensions] - Progress with neon decodetree conversion. I've now completed all the 3-reg-same insn grouping, which is a large enough amount that I'm planning to send out a patchset with what I have so far. Need to refactor/tidy up some bits of the code first, now I can see what the completed conversion looks like. thanks -- PMM

5 years

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[ACTIVITY] 20-24 April 2020

by Christophe Lyon

== Progress == * GCC upstream validation: - reported a couple of failures/regressions * GCC: - Committed a few fixes to MVE/CDE tests to avoid failures on arm-linux-gnueabi toolchains - Sent a few more testcases fixes - PR94538 (pure-code/M23): Let Wilco handle it since he has more testcases - Looked at Linaro bug #5614, and forwarded it for upstream discussion as PR94743 (IRQ handler and Neon registers) * FDPIC/GDB: - rebased gdbserver patches, it still crashes at runtime. Code size bigger than my last attempt with gdb-8.x. - tried to link it statically, but that fails because of multiple defs in uclibc. * misc: - infra fixes / troubleshooting / reviews - lots of disruptions == Next == * FDPIC GDB * GCC/cortex-M

5 years

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Re: buildbot failure in LLVM on clang-cmake-armv8-lld

by David Blaikie

Looks like there might be something wrong with this buildbot? (none of the commits seem to have changed lnt - or maybe lnt isn't monitored/blamed in the buildbot config?) On Tue, Apr 21, 2020 at 12:16 AM <llvm.buildmaster(a)lab.llvm.org> wrote: > The Buildbot has detected a new failure on builder clang-cmake-armv8-lld > while building llvm. > Full details are available at: > http://lab.llvm.org:8011/builders/clang-cmake-armv8-lld/builds/3875 > > Buildbot URL: http://lab.llvm.org:8011/ > > Buildslave for this Build: linaro-armv8-01-arm-lld > > Build Reason: scheduler > Build Source Stamp: [branch master] > c2d86e1f3044abb295796c8267c7b9057f54a067 > Blamelist: Alexander Shaposhnikov <alexshap(a)fb.com>,Chris Bieneman < > chris.bieneman(a)me.com>,Dan Liew <dan(a)su-root.co.uk>,David Blaikie < > dblaikie(a)gmail.com>,Johannes Doerfert <johannes(a)jdoerfert.de>,Mircea > Trofin <mtrofin(a)google.com>,Pavel Iliin <Pavel.Iliin(a)arm.com>,Sam Kerner < > skerner(a)chromium.org>,Shengchen Kan <shengchen.kan(a)intel.com>,Sriraman > Tallam <tmsriram(a)google.com> > > BUILD FAILED: failed setup lit > > sincerely, > -The Buildbot > > > >

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[ACTIVITY] 2 weeks ending 19 Apr 2020

by Richard Henderson

Short weeks around Easter. [VIRT-349 # QEMU SVE2 Support ] Lots of progress on insn implementation. Several patches from Stephen Long merged. He's coming up to speed nicely. Some good review from Laurent Desnogues. Spent some time writing a version of strspn for Arm optimized-routines, as a way of testing the NMATCH instruction. Found bugs in the tcg optimizer instead. Still in the process of rebasing the branch upon those fixes, and upon patch review from Peter. [VIRT-327 # Richard's upstream QEMU work ] Couple of patches for 5.0. [GCC] Posted v4 of aarch64 cmpti patch set. r~

5 years

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[ACTIVITY] week ending Apr. 19 2020

by Alex Bennée

VirtIO Related Work ([VIRT-366]) ================================ [VIRT-366] <https://projects.linaro.org/browse/VIRT-366> VirtIO RPMB ([VIRT-371]) - started work on [vhost-user backend for rpmb] - have the basic vhost-user loop created, still need to plumb into QEMU - will be able to experiment with [VIRT-402] minimal profile once running [VIRT-371] <https://projects.linaro.org/browse/VIRT-371> [vhost-user backend for rpmb] <https://github.com/stsquad/qemu/tree/vhost-user-rpmb> [VIRT-402] <https://projects.linaro.org/browse/VIRT-402> VirtiIO blogpost ([LBO-2]) - wrote up history of VirtIO up to standardisation - still TODO new work and architectures [LBO-2] <https://projects.linaro.org/browse/LBO-2> slides with virtio architectures for Victor Upstream Work ([VIRT-109]) ========================== - posted [PULL for 5.0-rc3 0/8] a few small fixes (docker, user, pie and gdbstub) Message-Id: <20200415104211.9388-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Other ===== - preparation work and GSoC candidate interviews [my QEMU developer guide] <https://people.linaro.org/~alex.bennee/org/presentations/qemu-developer-gui…> Absences ======== - Home-schooling in mornings Current Review Queue ==================== * [RFC][PATCH v2 0/3] IVSHMEM version 2 device for QEMU Message-Id: <cover.1578407802.git.jan.kiszka(a)siemens.com> Added: <2020-04-09 Thu> * [PATCH v6 00/36] Initial support for multi-process qemu Message-Id: <cover.1586165555.git.elena.ufimtseva(a)oracle.com> Added: <2020-04-06 Mon> * [PATCH v4 00/10] tests/vm: Add support for aarch64 VMs Message-Id: <20200312142728.12285-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> -- Alex Bennée

5 years, 1 month

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[ACTIVITY] report week ending 17 Apr

by Peter Maydell

(short week, 3 days) Progress: * VIRT-65 [QEMU upstream maintainership] - getting rc3 out of the door, including sorting out some last minute bug fixes. As usual, we hope not to need an rc4 but I expect we will. - code review; a two-day blitz has got my to-review queue down to a slightly more manageable size... + rth's series refactoring SVE load/store implementation + Guenter's i.MX watchdog support series + brief pass over raspi USB host controller emulation series + patch adding /secure-chosen/kaslr-seed to the virt dtb + the Greensocs/Xilinx clock framework patchset [including doing an editing pass on the docs] thanks -- PMM

5 years, 1 month

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How to use 'runtime-linaro-...' and 'sysroot-linaro-...' archives ?

by Константин Аладышев

Hello! I know, this is probably a very stupid question, but I couldn't find an answer for it. On the page https://releases.linaro.org/components/toolchain/binaries/latest-5/arm-linu… there are 3 major download components: gcc/sysroot/runtime. I download 'gcc', add 'gcc-linaro-.../bin' to my PATH and cross compile my apps. On my target system, I need 'libc', and it is present in the 'sysroot-linaro-...'. Do I need to copy all of the contents of 'sysroot-linaro-...' folder to my target? 'linaro-sysroot' folder is kinda big. 'libc.so' library is 13MB. If there is a way to decrease its size, if I want to use Linaro compiled programs on an embedded target? And what is a purpose of 'runtime-linaro-..." component?

5 years, 1 month

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How to use 'runtime-linaro-...' and 'sysroot-linaro-...' archives ?

by Konstantin Aladyshev

Hello! I know, this is probably a very stupid question, but I couldn't find an answer for it. On the page https://releases.linaro.org/components/toolchain/binaries/latest-5/arm-linu… there are 3 major download components: gcc/sysroot/runtime. I download 'gcc', add 'gcc-linaro-.../bin' to my PATH and cross compile my apps. On my target system, I need 'libc', and it is present in the 'sysroot-linaro-...'. Do I need to copy all of the contents of 'sysroot-linaro-...' folder to my target? 'linaro-sysroot' folder is kinda big. 'libc.so' library is 13MB. If there is a way to decrease its size, if I want to use Linaro compiled programs on an embedded target? And what is a purpose of 'runtime-linaro-..." component?

5 years, 1 month

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[ACTIVITY] 6 - 10 April 2020

by Prathamesh Kulkarni

== This Week == * LLVM-611 (tune heuristic to lower blx): Working on feedback. * GNU-659: Doing benchmarking experiments * Public holiday - One day off == Next Week == - Continue with LLVM-611 and GNU-659

5 years, 1 month

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[ACTIVITY] 6-10 April 2020

by Christophe Lyon

== Progress == * GCC upstream validation: - reported a couple of failures/regressions * GCC: - comparing testsuite results for cortex-m3 and cortex-m33 with cortex-a9 to check what cortex-M problem there are. Updated cmse-15.c test. Analyzing / bisecting other failures. - Sent fixes to MVE tests to avoid failures on arm-linux-gnueabi toolchains - Updated a few bugzilla entries about cortex-m issues * misc: - infra fixes / troubleshooting / reviews == Next == * FDPIC GDB * GCC/cortex-M

5 years, 1 month

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Disk full on linaro-tk1-06 (buildbot failure in LLVM on clang-cmake-armv7-full)

by Ilya Leoshkevich

Hi, clang-cmake-armv7-full fails with "No space left on device", e.g.: http://lab.llvm.org:8011/builders/clang-cmake-armv7-full/builds/9808/steps/… > The Buildbot has detected a new failure on builder clang-cmake-armv7- full while building llvm. > Full details are available at: > http://lab.llvm.org:8011/builders/clang-cmake-armv7-full/builds/9808 > > Buildbot URL: http://lab.llvm.org:8011/ > > Buildslave for this Build: linaro-tk1-06 > > Build Reason: scheduler > Build Source Stamp: [branch master] 3bc439bdff8bb5518098bd9ef52c56ac071276bc > Blamelist: Ilya Leoshkevich <iii(a)linux.ibm.com> > > BUILD FAILED: failed Checkout test-suite > > sincerely, > -The Buildbot Could someone please take a look? Best regards, Ilya

5 years, 1 month

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[ACTIVITY] week ending Apr. 12 2020

by Alex Bennée

VirtIO Related Work ([VIRT-366]) ================================ [VIRT-366] <https://projects.linaro.org/browse/VIRT-366> slides with virtio architectures for Victor an overview blogpost for Ebba - started drafting a blog post Upstream Work ([VIRT-109]) ========================== - posted [PULL for 5.0-rc2 00/13] various fixes Message-Id: <20200407155118.20139-1-alex.bennee(a)linaro.org> - a bit of launchpad triage for release - posted [PATCH for 5.0-rc3 v1 00/11] more random fixes Message-Id: <20200409211529.5269-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Other ===== - updated [my QEMU developer guide] for team workshop [my QEMU developer guide] <https://people.linaro.org/~alex.bennee/org/presentations/qemu-developer-gui…> Absences ======== - Easter Weekend (bank holidays) Current Review Queue ==================== * [RFC][PATCH v2 0/3] IVSHMEM version 2 device for QEMU Message-Id: <cover.1578407802.git.jan.kiszka(a)siemens.com> Added: <2020-04-09 Thu> * [PATCH v6 00/36] Initial support for multi-process qemu Message-Id: <cover.1586165555.git.elena.ufimtseva(a)oracle.com> Added: <2020-04-06 Mon> * [PATCH v4 00/10] tests/vm: Add support for aarch64 VMs Message-Id: <20200312142728.12285-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> * [PATCH v8 00/74] per-CPU locks Message-Id: <20200326193156.4322-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> -- Alex Bennée

5 years, 1 month

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[ACTIVITY] report week ending 9 Apr

by Peter Maydell

(short week, 4 days) Progress: * VIRT-364 [QEMU support for ARMv8.1-M extensions] - Still working through the Neon decoder refactoring. Finished loads-and-stores and am now on the 2000-line function that handles data-processing insns... thanks -- PMM

5 years, 1 month

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Failing libcxx-libcxxabi-libunwind bots

by Louis Dionne

Hi, It looks like several bots assigned to you started failing after e6a39f00e8d0 was committed: http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-armv8-linux-no… http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-armv8-linux http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-aarch64-linux http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-aarch64-linux-… They all fail on the test libcxx/test/libcxx/modules/stds_include.sh.cpp with the following error: <...>/libcxx/test/libcxx/modules/stds_include.sh.cpp:28:2: fatal error: file '<...>/libcxx/include/type_traits' has been modified since the module file '<TMP>/ModuleCache/1E92AHT/std-1V9DLRO.pcm' was built #include <vector> ^ <...>/libcxx/test/libcxx/modules/stds_include.sh.cpp:28:2: note: please rebuild precompiled header '<TMP>/ModuleCache/1E92AHT/std-1V9DLRO.pcm' 1 error generated. Our other bots are not failing, so I very strongly suspect this is not because of the change itself, but rather some weirdness in your bot configuration. For that reason, I will *not* revert the change (that would likely not improve the situation anyway). Can you please collaborate with us to understand and fix the issue? Thanks, Louis

5 years, 1 month

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Broken libcxx-libcxxabi-libunwind bots due to Filesystem tests

by Louis Dionne

Hi, It looks like the following bots assigned to you started failing recently: http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-armv7-linux http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-armv7-linux-no… The failing tests are all filesystem tests: FAIL: libc++::assign.pass.cpp FAIL: libc++::path.pass.cpp FAIL: libc++::replace_filename.pass.cpp FAIL: libc++::refresh.pass.cpp FAIL: libc++::file_size.pass.cpp FAIL: libc++::file_type_obs.pass.cpp FAIL: libc++::hard_link_count.pass.cpp FAIL: libc++::last_write_time.pass.cpp FAIL: libc++::ctor.pass.cpp FAIL: libc++::ctor.pass.cpp FAIL: libc++::increment.pass.cpp FAIL: libc++::exists.pass.cpp FAIL: libc++::is_block_file.pass.cpp FAIL: libc++::is_character_file.pass.cpp FAIL: libc++::is_directory.pass.cpp FAIL: libc++::is_empty.pass.cpp FAIL: libc++::is_fifo.pass.cpp FAIL: libc++::is_other.pass.cpp FAIL: libc++::is_regular_file.pass.cpp FAIL: libc++::is_socket.pass.cpp Having seen some of these issues before, I strongly suspect this is due to the fact that your builder is running as root. Libc++'s filesystem tests are known to fail when run as root, because some of them need to check for failure to access some files for which there's no permission. This doesn't seem to work when run as root. Can you work with us to resolve this issue? Thanks, Louis

5 years, 1 month

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[ACTIVITY] 30 March - 3 April 2020

by Christophe Lyon

== Progress == * GCC upstream validation: - reported a couple of failures/regressions * GCC: - comparing testsuite results for cortex-m3 and cortex-m33 with cortex-a9 to check what cortex-M problem there are. Spent a long time isolating a regression in CMSE tests. Filed PR94445 which was then quickly fixed by upstream in ICF optimization. * misc: - infra fixes / troubleshooting / reviews == Next == * FDPIC GDB * GCC/cortex-M

5 years, 1 month

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[ACTIVITY] week ending 5 Apr 2020

by Richard Henderson

[VIRT-349 # QEMU SVE2 Support ] Met with Qualcomm on Friday to discuss sharing the development work, and help start bringing their new-hire, Stephen Long, up to speed on qemu. Gave Stephen generic qemu development pointers, and a simple set of SVE2 instruction on which to wet his feet. [VIRT-327 # Richard's upstream QEMU work ] Better constant propagation and allocation for TCG. Worked on probe_guest_base as a follow-up to some of the work Alex was doing wrt init_guest_space. Misc patch review for 5.0. [GCC] Posted v3 of aarch64 cmpti patch set. r~

5 years, 1 month

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[ACTIVITY] 30 March - 3 April 2020

by Prathamesh Kulkarni

== This Week == * LLVM - LLVM-611 (Tune heuristic for blx): Posted upstream. - LLVM-612 (Redundant reg moves for 8-bit immediates): WIP patch * Public Holiday - one day off == Next Week == - Continue with LLVM tasks - Start looking at GNU-659

5 years, 1 month

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[ACTIVITY] week ending Apr. 5 2020

by Alex Bennée

VirtIO Related Work ([VIRT-366]) ================================ - minor planning work - need a few slides with virtio architectures for Victor - a overview blogpost for Ebba [VIRT-366] <https://projects.linaro.org/browse/VIRT-366> Upstream Work ([VIRT-109]) ========================== - GSoC feedback on proposals - we have 3 students putting forward proposals for TCG cache plugin - posted [PATCH] hw/core: properly terminate loading .hex on EOF record Message-Id: <20200401193849.14017-1-alex.bennee(a)linaro.org> - posted [PATCH] target/arm: don't expose "ieee_half" via gdbstub Message-Id: <20200402143913.24005-1-alex.bennee(a)linaro.org> - posted [PATCH for 5.0 v2 00/10] A selection of sanitiser fixes Message-Id: <20200401094759.5835-1-alex.bennee(a)linaro.org> - the linux-user guest map is better targeted at next week - posted [PATCH v3 for 5.0-rc2 00/12] a selection of random fixes Message-Id: <20200403191150.863-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Completed Reviews [1/1] ======================= [PATCH for-5.0 v3 0/7] configure: Improve PIE and other linkage Message-Id: <20200327220353.27233-1-richard.henderson(a)linaro.org> Absences ======== - Splitting time between work and home-schooling Current Review Queue ==================== * [PATCH v4 00/10] tests/vm: Add support for aarch64 VMs Message-Id: <20200312142728.12285-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> * [PATCH v8 00/74] per-CPU locks Message-Id: <20200326193156.4322-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> * [virtio-dev] [RFC PATCH] virtio-iommu: Add PAGE_SIZE_MASK property Message-Id: <20200323133831.2110014-1-jean-philippe(a)linaro.org> Added: <2020-03-27 Fri> * [virtio-dev] [PATCH v2 00/10] virtio-mem: paravirtualized memory Message-Id: <20200311171422.10484-1-david(a)redhat.com> Added: <2020-03-27 Fri> -- Alex Bennée

5 years, 1 month

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[ACTIVITY] report week ending 3 Apr

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - More freeze related wrangling... * VIRT-241 [QEMU ISA Support for A-profile] - pushed the ARMv8.2-TTS2UXN patchset out to the mailing list - found and fixed a bug in our PAN support where we were making PSTATE.PAN forbid execute access, not just data access * VIRT-364 [QEMU support for ARMv8.1-M extensions] - Started on some preliminary refactoring that we'll need so we can more conveniently modify the decoder for v8.1M: converting the A32/T32 Neon decoder to use decodetree. I've done the "post-v8.0 extensions" instructions, and started on the loads-and-stores. thanks -- PMM

5 years, 1 month

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TX2 + C++17 problems

by Jussi Lind

Hi, We are having some serious problems after we upgraded from C++14 to C++17 on an Jetson TX2 ARM device. Our system tests started to behave differently and fail. It seems that when our application uses a library (also developed by us) some data gets corrupted when delivered to a class constructor. For example, the .second of and std::pair<float> appears to be the .first and the .second is garbage. This is deterministic, but different tests are failing depending on the combination: library C++17/C++14 <-> application C++14/C++17. This is on Ubuntu 18.04 and gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04). Nothing like this happens on Intel. So: ARM, C++14: OK Intel, C++14: OK ARM, C++17: FAIL Intel, C++17: OK Any ideas what could cause this? I know this is a bit vague, but this a commercial, closed-source application so I cannot yet give any other information. BR, Jussi Lind

5 years, 1 month

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[ACTIVITY] week ending 29 Mar 2020

by Richard Henderson

[VIRT-349 # QEMU SVE2 Support ] Posted the first incremental patch set for review, as requested by Qualcomm. [VIRT-327 # Richard's upstream QEMU work ] Patch review, much of it 5.0 related, but also v6 of the riscv vector patch set. Revise the PIE and linkage patch set. r~

5 years, 1 month

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[ACTIVITY] 23-27 March 2020

by Christophe Lyon

== Progress == * GCC upstream validation: - reported a couple of failures/regressions * GCC: - comparing testsuite results for cortex-m3 and cortex-m33 with cortex-a9 to check what cortex-M problem there are. Fixed a few testcases. Managed to use qemu-system-arm to run cortex-m33 code with CMSE features. (Thanks to Peter Maydell for the help!) * misc: - infra fixes / troubleshooting / reviews == Next == * FDPIC GDB * GCC/cortex-M

5 years, 1 month

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