linaro-toolchain

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[ACTIVITY] 30 October - 3 November 2017

by Prathamesh Kulkarni

== This Week == * PR82808 (4/10) - Submitted patch upstream * TCWG-1234 (4/10) - Experimenting with unhoisting approach - Working through ICE's * TCWG-319 (1/10) - Rebased and locally validated patch * Misc (1/10) - Meetings == Next Week == - Continue ongoing tasks

7 years, 7 months

Linaro GCC CrossCompiler for ARMv8 - Weak Linkage issue

by Veena & Deepak Ramaswamy

All, Using the tool chain that comes with the FVP package that I downloaded last month (Oct 2017), I'm trying to compile the Splash2 benchmark to execute on the latest FVP platform and seeing a compilation issue that goes like this (please see below) To reproduce: 1. download the benchmark from here and follow _all_ the instructions in the homepage: http://www.capsl.udel.edu/splash/Download.html 2. edit the makefile.config under /splash2/codes to use linaro toolchain and choose POSIX_BARRIER for the MACROS section (I've pasted my makefile.config here as well - you will have to modify the toolchain paths to suit your setup) 3. cd to splash2/codes/apps/ocean/contiguous_partitions 4. make (and you will see the problem) Please help. Thanks. ------------------------------------------ /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc jacobcalc.o jacobcalc2.o laplacalc.o linkup.o main.o multi.o slave1.o slave2.o subblock.o -v -O3 -pthread -D_POSIX_C_SOURCE=200112 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wdisabled-optimization -Wpadded -Winline -Wpointer-arith -Wsign-compare -Wendif-labels -lgcc -lc -lm -static -o OCEAN -lm -lc -lgcc -static Using built-in specs. COLLECT_GCC=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc COLLECT_LTO_WRAPPER=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/lto-wrapper Target: aarch64-linux-gnu Configured with: /home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/snapshots/gcc-linaro-6.2-2016.11/configure SHELL=/bin/bash --with-mpc=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu --with-mpfr=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu --with-gmp=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu --with-gnu-as --with-gnu-ld --disable-libstdcxx-pch --disable-libmudflap --with-cloog=no --with-ppl=no --with-isl=no --disable-nls --enable-c99 --enable-gnu-indirect-function --disable-multilib --with-arch=armv8-a --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 --enable-multiarch --with-build-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/sysroots/aarch64-linux-gnu --enable-lto --enable-linker-build-id --enable-long-long --enable-shared --with-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu/aarch64-linux-gnu/libc --enable-languages=c,c++,fortran,lto --enable-checking=release --disable-bootstrap --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu --target=aarch64-linux-gnu --prefix=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu Thread model: posix gcc version 6.2.1 20161016 (Linaro GCC 6.2-2016.11) COMPILER_PATH=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/bin/ LIBRARY_PATH=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/lib/../lib64/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/lib/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/lib/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/ COLLECT_GCC_OPTIONS='-v' '-O3' '-pthread' '-D' '_POSIX_C_SOURCE=200112' '-Wall' '-Wextra' '-Wmissing-prototypes' '-Wmissing-declarations' '-Wredundant-decls' '-Wdisabled-optimization' '-Wpadded' '-Winline' '-Wpointer-arith' '-Wsign-compare' '-Wendif-labels' '-static' '-o' 'OCEAN' '-static' '-march=armv8-a' '-mlittle-endian' '-mabi=lp64' /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/collect2 -plugin /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/liblto_plugin.so -plugin-opt=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/lto-wrapper -plugin-opt=-fresolution=/tmp/ccwD6OY1.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_eh -plugin-opt=-pass-through=-lpthread -plugin-opt=-pass-through=-lc --sysroot=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc --build-id -Bstatic -X -EL -maarch64linux --fix-cortex-a53-835769 --fix-cortex-a53-843419 -o OCEAN /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/crt1.o /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/crti.o /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/crtbeginT.o -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1 -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/lib/../lib64 -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/lib -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/lib -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib jacobcalc.o jacobcalc2.o laplacalc.o linkup.o main.o multi.o slave1.o slave2.o subblock.o -lgcc -lc -lm -lm -lc -lgcc --start-group -lgcc -lgcc_eh -lpthread -lc --end-group /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/crtend.o /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/crtn.o /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/libpthread.a(lowlevellock.o): In function `__lll_lock_wait_private': /home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/snapshots/glibc.git~linaro~2.23~master/nptl/lowlevellock.c:29: multiple definition of `__lll_lock_wait_private' /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/libc.a(libc-lowlevellock.o):/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/snapshots/glibc.git~linaro~2.23~master/nptl/./lowlevellock.c:29: first defined here collect2: error: ld returned 1 exit status make: *** [OCEAN] Error 1 ----------------------------------------- Makefile.config ----------------------------------------- #CC := /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc CC := /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc CFLAGS := -v -O3 -pthread -D_POSIX_C_SOURCE=200112 #CFLAGS := -g3 -pthread -D_POSIX_C_SOURCE=200112 CFLAGS := $(CFLAGS) -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wdisabled-optimization CFLAGS := $(CFLAGS) -Wpadded -Winline -Wpointer-arith -Wsign-compare -Wendif-labels CFLAGS := $(CFLAGS) -lgcc -lc -lm -static LDFLAGS := -lm -lc -lgcc -static BASEDIR := /net/dramaswa-linux/local/mnt/workspace/MT/splash2/codes MACROS := $(BASEDIR)/null_macros/c.m4.null.POSIX_BARRIER M4 := m4 -s -Ulen -Uindex x = * $(TARGET): $(OBJS) $(CC) $(OBJS) $(CFLAGS) -o $(TARGET) $(LDFLAGS) clean: rm -rf *.c *.h *.o $(TARGET) .SUFFIXES: .SUFFIXES: .o .c .C .h .H .H.h: $(M4) $(MACROS) $*.H > $*.h .C.c: $(M4) $(MACROS) $*.C > $*.c .c.o: $(CC) -c $(CFLAGS) $*.c .C.o: $(M4) $(MACROS) $*.C > $*.c $(CC) -c $(CFLAGS) $*.c

7 years, 7 months

[ACTIVITY] 30 October-3 November 2017

by Christophe Lyon

Short week (off Wed/Thu/Fri) == Progress == * GCC - FDPIC: looking at patch stacks * GCC upstream validation: - got feedback from upstream about qemu and asan interaction since recent merge: need to disable LSAN on arm. - using qemu-2.7 again enables to workaround the timeout issues observed last week - worked on improving timeout handling - restarted validations, but.... - validations on-hold since Nov 1st because of an ST-internal infrastructure problem * Infrastructure: * misc (conf-calls, meetings, emails, ....) == Next == * GCC upstream validation * GCC/ubsan * GCC/FDPIC

7 years, 8 months

[ACTIVITY] Week 44

by Yvan Roux

* 3 days off == Progress == o Linaro GCC/Validation o LLVM * Continue ramp-up * Upstream bug 32999: - Reworked the fix and validate it - Ready to be submitted upstream * Start to look at sign-extension elimination status o Misc == Plan == o Release handover (5 release, 6 and 7 RCs) o LLVM tasks (Bug 32999, sign-extension)

7 years, 8 months

[ACTIVITY] Oct 27 -- Nov 03

by Yao Qi

# Progress # * TCWG-1040, [6/10] Update my patches to remove the last use of MAX_REGISTER_SIZE. Commit clean up and refactor patches. Find more clean up patches in my tree. Keep upstreaming them. The design and implementation of removing MAX_REGISTER_SIZE becomes more and more clear. * TCWG-1125, [2/10] ARMv8 tagged address support in GDB. v2 patches were posted. No comments yet. * aarch64: PR 19806: watchpoints: false negatives + PR 20207 contiguous ones. Patch review. [1/10] * Think about the TODOs for GDB ILP32 support, write them down, and send it to Maxim. [1/10] # Plan # * TCWG-1040, TCWG-1125. -- Yao Qi

7 years, 8 months

aarch64 toolchain support NEON and vfp features

by Joy Deng

Hi , I am a SW engineer that use Linaro-toolchain to build images, Recently, I encounter some issue about enable NEON features on ARMv8 processor platform. I cat cpuinfo, can not find neon and vfp feature enable in list, the image was build with aarch-64 toolchian; While, the image built by armv7l toolchain can list "neon and vfp" in cpuinfo. I want to verify from your side, 1. if the toolchain of aarch64 version already enable" neon and vfp " in default, Because I do not find some build items that related with "neon", 2. If not supported defaultly, can you give some suggestion to enable it. Thanks & B.R. Joy Deng

7 years, 8 months

[ACTIVITY] 23 October - 27 October 2017

by Prathamesh Kulkarni

== This Week == * TCWG-1005 (4/10) - Iteration on upstream feedback and validated patch - Committed to trunk in r254140. * Reverse of TCWG-1253 transform (3/10) - Adding reverse transform for div pattern in expand * TCWG-1234 (2/10) - Experimenting with "unhoisting" approach * Misc (1/10) - Meetings == Next Week == - Continue ongoing and backlog tasks from JIRA - Go through IPA mod/ref paper

7 years, 8 months

[ACTIVITY] Week 43

by Yvan Roux

* One day off == Progress == o Linaro GCC/Validation * Releases handover - GCC 5.5 source snapshot and RC1 deployed - GCC 6 and 7 RCs under construction o LLVM * Continue ramp-up * Upstream bug 32999: - Validating a fix o Misc * Various meetings and discussions. == Plan == o Continue release handover and LLVM ramp-up

7 years, 8 months

[ACTIVITY] 23-27 October 2017

by Christophe Lyon

== Progress == * GCC - FDPIC: started reading docs and looking at patches - Neon intrinsics PR71233: duplicates will be removed from the next doc update * GCC upstream validation: - since ubsan merge with upstream, validation of arm targets is now broken. Switching back to qemu-2.7 seems to avoid qemu deadlocks, but there are still new asan test failures after the merge. - reduced the dejagnu timeout to avoid global 'make check' timeouts, but this caused some testcases to become zombies, in turn causing problems in the ST compute farm. - validation on-hold until next so that I can experiment a bit more with workarounds - reported another qemu bug - reported a couple of regressions/breakages in binutils * Infrastructure: * misc (conf-calls, meetings, emails, ....) == Next == * GCC upstream validation * GCC/ubsan * GCC/FDPIC * Short week (off Wed/Thu/Fri)

7 years, 8 months

[ACTIVITY] Oct 23 - 27

by Yao Qi

* TCWG-1040, [4/10] Update my patches to remove the last use of MAX_REGISTER_SIZE. Post the clean up and refactor patches. * TCWG-1125, [4/10] ARMv8 tagged address support in GDB. v2 patches are posted. Take care of breakpoint and watchpoint on tagged address carefully. * ILP32 GDB branch. [1/10] Branch is created! Done. * Misc, meeting, [1/10] # Plan # * Update my patches to remove the last use of MAX_REGISTER_SIZE. * GDB flexible target description conversion. Upstream patches. -- Yao Qi

7 years, 8 months

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