linaro-toolchain

linaro-toolchain@lists.linaro.org

7 participants
5634 discussions

by Yao Qi

# Progress # * TCWG-1159,New design of GDB/GDBserver target description. [3/10] Split the patch series, and post unrelated stuff first. Patches will be easily reviewed in this way. * TCWG-561, Handle unavailable memory during frame unwinding. [2/10] Committed the first 4 patches, and leave the rest 4 patches for review. * TCWG-1162, Test GDB+OpenOCD with AArch64 boards. [4/10] Resolved the newlib issue. Get my first newlib patch merged. Successfully run GDB testsuite with QEMU system mode. It should be similar to running with OpenOCD. * Upstream review. [1/10] ** Review some memory leaks fixes. ** One patch about armv8.3 pointer authentication. Next week: * On holiday, and back on Thu. * TCWG-1162, triage the aarch64-elf GDB test result with QEMU. * TCWG-1159, rebase my GDB target description patches, and post v4. -- Yao Qi

8 years, 1 month

[ANNOUNCE] Linaro Binary Toolchain Release-Candidate GCC 6.4-2017.08-rc1

by Yvan Roux

The Linaro Binary Toolchain ============================ The Linaro GCC 6.4-2017.08-rc1 Release-Candidate is now available. The GCC 6 Release series has significant changes from the GCC 5 release series. For an explanation of the changes please see the following website: https://gcc.gnu.org/gcc-6/changes.html For help in porting to GCC 6 please see the following explanation: https://gcc.gnu.org/gcc-6/porting_to.html Download release-candidate packages from: (sources) http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.08-rc1/ (binaries) http://snapshots.linaro.org/components/toolchain/binaries/6.4-2017.08-rc1/ 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 the arm and AArch64 target triples 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 6.4-2017.08-rc1 http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.08-rc1/ Linaro glibc 2.23 (linaro/2.23/master) https://lists.gnu.org/archive/html/info-gnu/2016-02/msg00009.html Linaro newlib 2.4-2016.03 (linaro_2.4-branch) https://sourceware.org/ml/newlib/2016/msg00370.html Linaro binutils 2.27 (linaro-local/linaro_binutils-2_27-branch) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob_plain;f=bin… Linaro GDB 8.0 (gdb-8.0-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 6 (as of Linaro GCC 6.4-2017.08-rc1) ================================================== * Previous MinGW hosted version of Linaro GCC C preprocessor failed to convert character set used for string, character constants, etc. This is fixed in this release. Linaro bugzilla #3040 : CC1 and cc1plus cannot convert UTF-8. https://bugs.linaro.org/show_bug.cgi?id=3040 * The Linaro GCC 6.3-2017.05 snapshot added support for -mpure-code option to ARMv7-M and ARMv8-M targets. This option ensures functions are put into sections that contain only code and no data. * The GDB version was upgraded from GDB 8.0. * Previous versions of the Linaro GCC 6 toolchain, when -static -E/—dynamic-list are passed to the linker, might create executables with dynamic sections which aren’t supported by run-time. This was exhibited in Perf Tools build system and has been fixed upstream and backported into Linaro Binutils 2.27 branch. Linaro bugzilla #2926 : Perf tools compiled statically for AArch64 with Linaro release 6.1 and later ones was not statically linked. https://bugs.linaro.org/show_bug.cgi?id=2926 * The Linaro GCC 6.3-2017.03 snapshot fixed some ILP32 issues (TLS, exception handling, …) and these have been incorporated into this release. * Previous versions of the Linaro GCC 6 toolchain were incorrectly generating floating-point code for soft-float Linux targets (arm-linux-gnueabi, and armeb-linux-gnueabi). This escaped detection until recently because the soft-float targeted toolchains were configured to use general-purpose registers for passing floating-point values (which is what you would expect for soft-float toolchains) and the intra-routine floating-code was not noticed. The issue would only show up on targets that were run on hardware that truly didn't have floating-point hardware where the kernel did not trap and emulate floating-point routines. This has been solved in Linaro GCC 6.3-2017.02-rc2 by configuring the toolchain (using --with-float=soft) to generate code without any floating-point instructions at all (-mfloat-abi=soft). https://review.linaro.org/#/c/16968/2 This change should not break compatibility between existing binaries compiled with these toolchains since the float-point parameter passing ABI is still the same. * A bug/regression in the compiler has been identified whereby the target function that is invoked when calling a "weak" function directly is the "strong" override, whereas when calling the function via a pointer the "weak" implementation is used. This would be noticed as inconsistent function invocation when invoking directly vs. invoking via function pointer. This issue only affected 32-bit arm targets. This regression has been fixed upstream and backported into Linaro GCC 6.3-2017.02-rc2. GCC PR target/78253: [5/6/7 Regression] [ARM] call weak function instead of strong when called through pointer. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78253 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 * MS Windows does not support symlinks and the MS Windows archive extractor does not properly deep copy the symlink target files/directories into the symlinked directory structure when unpacking the toolchain archive. This causes problems with missing dependencies when using the Linaro mingw toolchains, as identified in the following 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 This has been solved by copying files rather than using symlinks when the mingw targetted toolchain archives are created. https://review.linaro.org/#/c/16415/ * Users of Linaro's toolchain have encountered problems when building projects with Autotools (specifically libtool): https://bugs.linaro.org/show_bug.cgi?id=2764 The Linaro binary toolchain release contained files with a .la suffix as artifacts of the toolchain build process. These .la files are helper files for libtool, but unlike a gcc install tree, they are not position independent and contain full paths. Since these artifacts contain absolute paths they can actually mislead user invocation of libtool into not finding required libraries (because they reference the build tree, not the install location) and hence breaking Autotools builds. These *.la file artifacts have been removed from Linaro toolchain binaries because they are unnecessary for users. * The Linaro GCC 6.3-2017.01 snapshot added further enablement for ARMv8-M and these have been incorporated into this release. * Compiling and statically linking some SPEC2006int tests against tcmalloc have been failing due to a problem with glibc's memory allocator function overrides. This was fixed upstream: https://sourceware.org/bugzilla/show_bug.cgi?id=20432 Backported into Linaro glibc 2.23: commit 058b5a41d56b9a8860dede14d97dd443792d064b Author: Florian Weimer <fweimer(a)redhat.com> 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 1.5G to 600M for aarch64-linux-gnu target with the gcc-6-branch. * The GDB version was upgraded from GDB 7.11 in the Linaro GCC 6.1-2016.08 release to GDB 7.12 in the Linaro GCC 6.2-2016.11 release. * The Linaro GCC 6.2-2016.10 snapshot added AArch32 support for ARMv8.2 and ARMv8m, as well as some AArch64 fixes for ARMv8.2, and bug fixes merged from FSF GCC 6.2. This is available in the binary toolchain as of Linaro GCC 6.2-2016.11. * Basic tuning support for the Qualcomm qdf24xx was added to the Linaro GCC 6.2-2016.10 snapshot and is available in the binary toolchain as of Linaro GCC 6.2-2016.11. * IFUNC was disabled for baremetal targets, as it was causing test-suite failures, and is presently a Linux only feature. * The gold linker was added to this binary release. * Backported malloc_lock fix into Linaro newlib 2.4. commit 2665915cfc46aa6403bb2efd473c523d3167e0cb Author: Andre Vieira (lists) <Andre.SimoesDiasVieira(a)arm.com> Date: Thu Jun 16 12:23:51 2016 +0100 Re-enable malloc_lock for newlib-nano * Backported rawmemchr patch into Linaro newlib 2.4. commit e7b1ee2ea6aa3ee1da41976407410e6202a098c5 Author: Wilco Dijkstra <Wilco.Dijkstra(a)arm.com> Date: Thu May 12 16:16:58 2016 +0000 Add rawmemchr * Backported strlen fix when using Thumb-2 and -Os -marm into Linaro newlib 2.4. commit 5c02bcc086a96b174e1b9e1445a4a1770070107a Author: Thomas Preud'homme <thomas.preudhomme(a)arm.com> Date: Wed May 11 17:18:48 2016 -0400 Fix strlen using Thumb-2 with -Os -marm * Backported fix for semihosting ARM when heapinfo not provided by debugger into Linaro newlib 2.4. commit 5c9403eaf40951f8a4f55ed65f661b485ff44be7 Author: David Hoover <spm2(a)dangerous.li> Date: Thu Apr 21 07:12:24 2016 +0200 Fixed semihosting for ARM when heapinfo not provided by debugger. * Merged latest FSF glibc release/2.23/master into Linaro glibc 2.23. * Backported __ASSUME_REQUEUE_PI check Linaro glibc 2.23 branch. commit 2d20c3bf918cd94ebd4106693adb3a5c9272baba 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) * Backported removal of __ASSUME_SET_ROBUST_LIST from Linaro glibc 2.23 branch. commit bb8f09d72756186a3d82a1f7b2adcf8bc1fbaed1 Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Mon May 16 19:01:10 2016 -0300 Remove __ASSUME_SET_ROBUST_LIST * Backported removal of __ASSUME_FUTEX_LOCK_PI from Linaro glibc 2.23 branch. commit e48b4e7fed0de06dd7832ead48bea8ebc813a204 Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Mon May 16 10:35:25 2016 -0300 Remove __ASSUME_FUTEX_LOCK_PI * Merged latest FSF binutils-2_27-branch into linaro_binutils-2_27-branch. * The libwinpthread DLL is now copied into the host bin directory to satisfy mingw package dependencies. * Backported GNU Linker fix. commit fbc6c6763e70cb2376e2de990c7fc54c0ee44a59 Author: Nick Clifton <nickc(a)redhat.com> Date: Tue Aug 23 09:45:11 2016 +0100 Fix seg-fault in ARM linker when trying to parse a binary file. * Backported GNU Assembler fix for PR 20364 commit 5fe7ebe5ab43750abf8f490b785d99a1e598e7fd Author: Nick Clifton <nickc(a)redhat.com> Date: Fri Aug 5 10:37:57 2016 +0100 Fix the generation of alignment frags in code sections for AArch64. https://sourceware.org/bugzilla/show_bug.cgi?id=20364 * Performance related backports from the following snapshots have been included: Linaro GCC 6.1-2016.06, Linaro GCC 6.1-2016.07, Linaro GCC 6.1-2016.08, Linaro GCC 6.2-2016.09, Linaro GCC 6.2-2016.10, Linaro GCC 6.2-2016.11, Linaro GCC 6.2-2016.12, Linaro GCC 6.3-2017.01, Linaro GCC 6.3-2017.02, Linaro GCC 6.3-2017.03, Linaro GCC 6.3-2017.04, Linaro GCC 6.3-2017.05, Linaro GCC 6.3-2017.06 and Linaro GCC 6.4-2017.07 . See the following Linaro GCC snapshots: http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.1-2016.06/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.1-2016.07/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.1-2016.08/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.2-2016.09/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.2-2016.10/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.2-2016.11/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.2-2016.12/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.01/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.02/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.03/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.04/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.05/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.06/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.07/ 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

8 years, 1 month

[ANNOUNCE] Linaro Binary Toolchain Release-Candidate GCC 7.1-2017.08-rc1

by Yvan Roux

The Linaro Binary Toolchain ============================ The Linaro GCC 7.1-2017.08-rc1 Release-Candidate is now available. *Notice*: GCC 7.1 ABI change for arm*-*-* targets, and note for aarch64*-*-* targets >From GCC 7.1 release notes: On ARM targets (arm*-*-*), a bug introduced in GCC 5 that affects conformance to the procedure call standard (AAPCS) has been fixed. The bug affects some C++ code where class objects are passed by value to functions and could result in incorrect or inconsistent code being generated. This is an ABI change. If the option -Wpsabi is enabled (on by default) the compiler will emit a diagnostic note for code that might be affected. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728 GCC 5 and GCC 6 releases will continue to be affected by the ABI bug, since changing ABI in these releases is not practical. A warning enabled by -Wpsabi option was added to GCC 5 and GCC 6 toolchains to diagnose codebases that might be affected by the ABI bug. Additionally, this same bug was present in AArch64 backend in development versions of GCC 7. There was no releases of GCC with this bug present in AArch64 backend, therefore the release notes does not mention this. However, be advised that any code bases built with development versions of GCC 7 need to be recompiled with released version of GCC 7 to conform to ABI. For an explanation of GCC 7 series changes please see the following website: https://gcc.gnu.org/gcc-7/changes.html For help in porting to GCC 7 please see the following explanation: https://gcc.gnu.org/gcc-7/porting_to.html Download release-candidate packages from: (sources) http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.1-2017.08-rc1/ (binaries) http://snapshots.linaro.org/components/toolchain/binaries/7.1-2017.08-rc1/ 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 the arm and AArch64 target triples 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 7.1-2017.08-rc1 http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.1-2017.08-rc1/ FSF glibc 2.25 (release/2.25) https://lists.gnu.org/archive/html/info-gnu/2017-02/msg00002.html Newlib 2.5 (newlib-2_5_0 tag) https://sourceware.org/ml/newlib/2016/msg01191.html GNU Binutils 2.28 (linaro-local/linaro_binutils-2_28-branch) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob_plain;f=bin… FSF GDB 8.0 (gdb-8.0-branch) https://sourceware.org/ml/gdb-announce/2017/msg00003.html Linaro toolchain package git branches are hosted at: http://git.linaro.org/toolchain NEWS for GCC 7 (as of Linaro GCC 7.1-2017.08-rc1) ===========================[ANNOUNCE] Linaro Binary Toolchain Release-Candidate GCC 7.1-2017.08-rc1======================= * The Linaro GCC 7.1-2017.07 snapshot added prefetching configuration improvement for AArch64 targets and laid groundwork to enabling prefetching in more cases. * Previous MinGW hosted version of Linaro GCC C preprocessor failed to convert character set used for string, character constants, etc. This is fixed in this release. Linaro bugzilla #3040 : CC1 and cc1plus cannot convert UTF-8. https://bugs.linaro.org/show_bug.cgi?id=3040 * Performance related backports from the following snapshots have been included: Linaro GCC 7.1-2017.05, Linaro GCC 7.1-2017.06 and Linaro GCC 7.1-2017.07.

8 years, 1 month

[ACTIVITY] 31/07 - 04/08

by Yao Qi

# Progress # * TCWG-1159,New design of GDB/GDBserver target description. [3/10] Patches are still not reviewed. Keep going to change x86 target descriptions. Post two patches to clean up them first. * TCWG-561, Handle unavailable memory during frame unwinding. [3/10] Patches are posted. * PR 21818, GDB crashes with executable for armv5te. [1/10] Patch is tested, and to be posted. * Upstream review, [2/10] ** ADI patches review, advice on how to match the output in gdb tests, ** Some disassembly regression caused by my previous patches, ** Help people to triage their GDB issues because I don't have the env to reproduce them. * Misc, [1/10] # Plan # * TCWG-1162, Test GDB+OpenOCD with AArch64 boards. Post my newlib patches upstream, and continue to test with QEMU and OpenOCD respectively. * TCWG-1159, New design of GDB/GDBserver target description -- Yao Qi

8 years, 1 month

[ACTIVITY] Week 31

by Yvan Roux

o Back from vacation Wednesday. == Progress == o Linaro GCC/Validation * Discussed/checked needs for newlib and binutils to include in binaries * Preparing RCs (release notes, ...) * pinged my unreviewed upstream patches * reviewed infra patches o Misc * Various meetings and discussions. == Plan == o 2017.08 GCC 6 and 7 release candidates, backports, ...

8 years, 1 month

[ACTIVITY] 31st July - 4th August 2017

by Prathamesh Kulkarni

== This Week == * malloc propagation (2/10) - Submitted patch upstream * type promotion (4/10) - Verified ppc64 miscompilation with memcpy-bi.c is a latent issue. - Investigating another miscompilation on ppc64 with patch. - Experimenting with pass placement. * bugs (3/10) - PR78736: pinged upstream. - PR78888: submitted patch upstream. - Started looking at PR78809. - Committed patch add include-guard to tree-vrp.h. * Misc (1/10) - Meetings == Next Week == - Type promotion, PR78809, malloc propagation

8 years, 1 month

[ACTIVITY] 24 - 28 July 2017

by Prathamesh Kulkarni

== This Week == * malloc propagation (4/10) - Resolved bootstrap comparison failure - Patch passes validation with and without LTO. - Working on handling indirect calls. * type promotion (3/10) - Created patche for resolving ICE with armv3/armv5t. - Have got a hack-ish patch to address interference between type promotion and widening_mul/bswap optimizations, but needs improvement. * Misc (3/10) - Meetings - Visa interview == Next Week == - Continue with malloc propagation, type promotion

8 years, 1 month

[ACTIVITY] 24 - 28 July

by Yao Qi

# Progress # * TCWG-1159,New design of GDB/GDBserver target description. [3/10] Looks people who can review my patches is on holiday, so I committed 7 patches and leave the rest 19 patches there. Need to think about how to make people more confident on these patches. * PR 21717, PR 21555, fixed. Pushed to master and 8.0 branch. [1/10] * TCWG-1162, Test GDB+OpenOCD with AArch64 boards. [3/10] I can run gdb regression tests with OpenOCD on HiKey. After I power cycle the board, the first several tests can run, but the following tests failed because the board goes to an odd state. Something wrong in OpenOCD side. Try GDB aarch64 bare-metal debugging with QEMU, and then find a bug in newlib which doesn't initialize FPU, so some FPU instruction will trigger und exception. * TCWG-561, Handle unavailable memory during frame unwinding. [2/10] Lear C++ move assignment and move constructor. Finish the code, and testing the patches. * Send my GDB target description talk abstract to Linaro SFO17. * Misc [1/10] # Plan # * Mon and Tue off. * TCWG-561, TCWG-1159. -- Yao Qi

8 years, 1 month

Problems with Aarch64 vmull_p64 and vmull_high_p64

by Jeffrey Walton

Hi Everyone, I'm working on a early LeMaker HiKey with GCC 4.9.2. I believe everything is fully patched. I'm using the builtin's because the intrinsics are missing. I lifted it from https://gcc.gnu.org/ml/gcc-patches/2015-05/msg01976.html. Any ideas on this issue? hikey$ g++ -march=armv8-a test.cxx -c test.cxx: In function ‘poly128_t VMULL_P64(poly64_t, poly64_t)’: test.cxx:10:1: error: unrecognizable insn: } ^ (insn 9 8 12 2 (set (reg:TI 73 [ D.17869 ]) (unspec:TI [ (reg:DI 75) (reg:DI 76) ] UNSPEC_PMULL)) test.cxx:9 -1 (nil)) test.cxx:10:1: internal compiler error: in extract_insn, at recog.c:2202 Please submit a full bug report, Thanks in advance. Jeff ********** hikey:cryptopp-fork$ cat test.cxx #include <arm_neon.h> #include <arm_acle.h> #define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) #if (GCC_VERSION >= 40800) && (GCC_VERSION < 50000) inline poly128_t VMULL_P64(poly64_t a, poly64_t b) { return __builtin_aarch64_crypto_pmulldi_ppp (a, b); } inline poly128_t VMULL_HIGH_P64(poly64x2_t a, poly64x2_t b) { return __builtin_aarch64_crypto_pmullv2di_ppp (a, b); } #else # define VMULL_P64(a, b) vmull_p64(a, b) # define VMULL_HIGH_P64(a, b) vmull_high_p64(a, b) #endif int main(int argc, char* argv[]) { const poly64_t a1={0x9090909090909090}, b1={0xb0b0b0b0b0b0b0b0}; const poly8x16_t a2={0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0xa0,0xa0,0xa0,0xa0,0xa0,0xa0,0xa0,0xa0}, b2={0xc0,0xc0,0xc0,0xc0,0xc0,0xc0,0xc0,0xc0,0xe0,0xe0,0xe0,0xe0,0xe0,0xe0,0xe0,0xe0}; const poly128_t r1 = VMULL_P64(a1, b1); const poly128_t r2 = VMULL_HIGH_P64((poly64x2_t)(a2), (poly64x2_t)(b2)); return 0; } ********** $ cat /proc/cpuinfo Processor : AArch64 Processor rev 3 (aarch64) processor : 0 processor : 1 processor : 2 processor : 3 processor : 4 processor : 5 processor : 6 processor : 7 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: AArch64 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 3 Hardware : HiKey Development Board ********** $ gcc --version gcc (Debian/Linaro 4.9.2-10) 4.9.2 Copyright (C) 2014 Free Software Foundation, Inc. $ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 8.9 (jessie) Release: 8.9 Codename: jessie

8 years, 1 month

[ACTIVITY] 24 - 28 July

by Peter Smith

4 day week. [TCWG-614] Range Extension Thunks - Rebased due to upstream refactoring - Pinged but no upstream review progress [Compiler-rt] Clang no longer always uses base PCS for all the builtins it expands such as the _Complex helpers. - Added tests to make sure RTABI 4.1.2 Floating Point helpers all use softfp in Clang D35538 and llvm D35904. - Reviewer pointed out useful script update_llc_test_checks.py that can simplify writing of llc tests. Well worth checking out [LLD] Looks like lld use in Android may be becoming more likely, major blocking feature is lack of Cortex-A53 erratum fix 843419. - I've commented on the upstream PR https://bugs.llvm.org/show_bug.cgi?id=33463 - I've written some test cases and have started a prototype implementation Submitted Linaro Connect presentation proposal for Functional Safety and Development tools. Plans: In priority order: - range extension thunks - Cortex-A53 843419 - Compiler-rt

8 years, 1 month

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