Hi all,
I'm working on booting Linaro LSK 3.10.40 kernel in be8 mode on our Cortex-A9 system.
There is an issue related to VFP instruction. It complain "vstmia" is an undefined instruction.
The VFP is supported in CPU and CONFIG_VFP and CONFIG_VFPv3 are enabled in kernel config.
Are there any patch need to be done for VFP in BE mode?
The booting log show as following:
call sys_access(/init)
Freeing unused kernel memory: 2832K (c0600000 - c08c4000)
kernel_init: try to execute '/init' (ramdisk_execute_command)
en->run_init_process(/init)
init (1): undefined instruction: pc=0000aab8
Code: f00f dff8 2a20 1268 (acec) 108b
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004
The disassembly code show the undefined instruction is "vstmia".
armeb-linux-gnueabihf-objdump -D busybox_unstripped > busy.asm
0000aa90 <__sigsetjmp>:
...
aab6: 6812 ldr r2, [r2, #0]
aab8: ecac 8b10 vstmia ip!, {d8-d15}
aabc: f412 7f00 tst.w r2, #512 ; 0x200
The rootfs is busybox 1.22.1 compiled by Linaro BE hard floating toolchain.
https://releases.linaro.org/14.04/components/toolchain/binaries/gcc-linaro-…
Thanks,
Joel
== Progress ==
* On Holiday from 14th to 17th July 2014.
* Travel to Cambridge to attend TCWG Sprint and GNU Tools Cauldron on
Friday 18th July.
== Plan ==
* Attend GNU Tools Cauldron 18th to 20th July.
* Attend TCWG Sprint 21st to 24th July.
* Friday 18th July return back after attending TCWG Sprint and GNU
Tools Cauldron in UK.
== Progress ==
* Testing and Analysis of testsuite failures in arm-linux-gdb [TCWG-509] [6/10]
-- Run ARM GDB testsuite on local chromebook, remote chrombook and
pandaboards.
-- Investigation of failures on arm.
* AArch64 GDB handling of functions with empty prologue. [TCWG-504] [1/10]
-- Short list aarch64 prologue skipping requirements.
* Browsing gdb related upstream discussions and reviewing aarch64
regset rework stuff. [1/10]
* Preparation for travel to UK, obtaining medical NOC document for
international travel. [2/10]
== Plan ==
* On Holiday from 14th to 17th July 2014.
* Travel to Cambridge to attend Sprint and Cauldron.
=Progress=
cbuild2 benchmarking - TCWG-360 [7/10]
* Much fighting with benchmarking branch on a panda
* Ported eembc benchmarking over to my way of doing things
* A bit of cleanup around the 'reduce noise by shutting down services' stuff
* Slew my ailing Ubuntu VM, started bringing up a beagle as a 2nd
sacrificial target
lowlevellock.h - TCWG-435 [1/10]
* Roland patch review/thinking about how to test a corner case
Meetings/mail/etc [2/10]
=Plan=
Cauldron/TCWG sprint
Hopefully some cbuild2 benchmarking progress
== Progress ==
* Annual leave Monday to Wednesday (6/10)
* Travel to Cauldron/Sprint (2/10)
* Catching up on email, pushing patches, bugs etc. (2/10)
== Issues ==
* None
== Plan ==
* GNU Tools Cauldron
* Toolchain Sprint
--
Will Newton
Toolchain Working Group, Linaro
The Linaro Toolchain Working Group (TCWG) is pleased to announce the 2014.07
stable release of the Linaro GCC 4.9 source package.
Linaro GCC 4.9 2014.07 is the fourth Linaro GCC source package release in the
4.9 series. It is based on FSF GCC 4.9.1+svn212419 and includes performance
improvements and bug fixes.
With the imminent release of ARMv8 hardware and the recent release of the
GCC 4.9 compiler the Linaro TCWG will be focusing on stabilization and
performance of the compiler as the FSF GCC compiler approaches version 4.9.1.
The Linaro TCWG will provide monthly stable[1] source package releases until
FSF GCC 4.9.1 is released. At that point Linaro GCC 4.9 will merge in
FSF GCC 4.9.1 and, release Linaro GCC 4.9.1, and then return to a schedule of
stable quarterly releases and monthly engineering[2] releases.
Interesting changes in this GCC source package release include:
* Updates to GCC 4.9.1-pre+svn212419
* Backport of [AArch32] Wrap long literals in HOST_WIDE_INT_C in
aarch-common.c
* Backport of [AArch32] Rewrite TLC Intrinsics.
* Backport of [AArch32] Remove vzip, vuzp, vtrn builtins and cleanup
* Backport of [AArch32] Use enum name instead of integer value for
PARAM_SCHED_PRESSURE_ALGORITHM.
* Backport of [AArch32] Vectorise bswap*
* Backport of [AArch32] Fix PR/61331
* Backport of [AArch32] Fix PR target/61154
* Backport of [AArch32] Use mov_imm type for movw operations consistently
* Backport of [AArch32] Remove XFmode from ARM backend.
* Backport of [AArch64] Rewrite REV Intrinsics.
* Backport of [AArch64] Implement HARD_REGNO_CALLER_SAVE_MODE.
* Backport of [AArch64] Support tail indirect function call.
* Backport of [AArch64] Fix stack protector for ILP32
* Backport of [AArch64] ILP32 dynamic linker
* Backport of [AArch64] Correct signedness of builtins, remove casts from
arm_neon.h
* Backport of [AArch64] clarify stack layout diagram
* Backport of [AArch64] Implement movmem for the benefit of inline memcpy
* Backport of [AArch64] Fix REG_CFA_RESTORE mode.
* Backport of [AArch64] Fix layout of frame layout code.
* Backport of [AArch64] Fix some reg-to-reg move scheduler types.
* Backport of [AArch64] Implement CRC32 ACLE intrinsics + testsuite.
* Backport of [AArch64] Implement ADD in vector registers for 32-bit scalar
values.
* Backport of [AArch32/AArch64] TARGET_ATOMIC_ASSIGN_EXPAND_FENV AArch64
* Backport of [AArch32/AArch64] Use signed chars in gcc.dg/pr60114.c.
* Backport of [AArch32/AArch64] Rewrite UZP Intrinsics.
* Backport of [AArch32/AArch64] Rewrite TRN Intrinsics.
* Backport of [AArch32/AArch64] Rewrite EXT Intrinsics.
* Backport of [genattrtab] Fix memory corruption, allocate enough memory for all
bypassed reservations
* Backport of Fix PR c/60114
Feedback and 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 Launchpad against "Linaro GCC project":
http://bugs.launchpad.net/gcc-linaro/+filebug.
* Questions? "ask Linaro":
http://ask.linaro.org/.
* Interested in commercial support? inquire at "Linaro support":mailto:
support(a)linaro.org
[1] Stable source package releases are defined as releases where the full Linaro
Toolchain validation plan is executed.
[2] Engineering source package releases are defined as releases where the
compiler is only put through unit-testing and full validation is not
performed.
== Progress ==
* More work on launchpad bugs (3/10)
- Moved gdb bugs over to bugzilla and closed down Launchpad tracker
- Found secret location of Linaro eglibc bugs in Launchpad!
- Triaged, moved, closed as many bugs as possible, some still remain
* Respin of binutils 2.24 2014.07 release (1/10)
* Get binutils ARM testsuite all passing on EABI, mostly on OABI (2/10)
* glibc patch review and build warning fixes (2/10, CARD-341)
* Annual leave on Friday (2/10)
== Issues ==
* None
== Plan ==
* 4 days in Berlin
* Travel to Cauldron
--
Will Newton
Toolchain Working Group, Linaro
Hello Will and list,
do you have a prepackaged static libfdt.a for aarch64?
I think it's part of some of the released images you provide, but
maybe you have it also available as a single package?
Thank you,
Claudio
== Week of July 7th ==
- Continued working on toolchain testing improvements (CARD-1378, 6/10)
-- Further Jenkins fixes and improvements
-- Various bits of build farm administration
-- Investigated feasibility of [really] remote cross-testing -- yes, it is feasible!
- STREAM performance regression (TCWG-388, 2/10)
-- Resumed patch submission (now that testing is working much better)
- Various meetings and discussions (2/10)
--
Maxim Kuvyrkov
www.linaro.org
== Week of June 30th ==
- Continued working on toolchain testing improvements (CARD-1378, 6/10)
-- Troubleshooted Jenkins jobs
-- Various cbuild2 improvements
- Migrated master VM of TCWG dev environment to AWS (2/10)
-- It is now at tcwg-dev-env-master.linaro.org
- Various meetings and discussions (2/10)
-- Attempted to test QEMU's aarch32 crypto support
-- Organized travel for GCC GSoC student to GNU Tools Cauldron. Thanks Linaro for providing sponsorship for this!
--
Maxim Kuvyrkov
www.linaro.org
