== GCC ==
* Followed up on review comments on reassociation pass.
* Analyzed performance headroom of Linaro GCC 4.7 compared
to various other compilers and identified several missing
optimisations.
== Misc ==
* Prepared for Linaro Connect Hong Kong.
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
Current Milestones:
|| || Planned || Estimate || Actual ||
||cp15-rework || 2012-01-06 || 2012-06-23 || ||
== other ==
* preparation for Connect
* wrote up and sent out proposal about handling TrustZone for KVM
* investigated some issues Riku found when testing his packaged
version of KVM (one model issue, one kernel-too-old issue)
* usual upstream maintainer duties
-- PMM
Hi,
OpenEmbedded-Core/meta-linaro:
* cbuild enhancements:
* debugged failures till I noticed cbuild was pulling in the wrong
branch of meta-linaro (now fixed)
* added support for checking the oe-core build prerequisites
* the images are now automatically bootet using qemu
* sizes of the images and package sizes are now recorded
* update to Linaro GCC 4.6 2012.05 (denzil) and Linaro GCC 4.7 2012.05
(master)
* debugged build failure when using Linaro GCC 4.6 in a hard float
configuration
* turns out that OE expects the GCC to respect the
ARCH_FLAGS_FOR_TARGET env variable
to build libgcc and friends properly for the given target
(another missing patch to build the GCC the OE-Core way)
* fix tested and checked in (denzil)
* created/updated wiki pages:
https://wiki.linaro.org/WorkingGroups/ToolChain/Outputs/OpenEmbedded-Corehttps://wiki.linaro.org/KenWerner/Sandbox/OpenEmbedded-Core
Regards,
Ken
Hi,
GDB for Android:
* Fixed the PC offset in jmp_buf but the patch still wasn't working.
It turns out that GDB wasn't loading the libc6.so symbols even though
I set both sysroot *and* solib-search-path. Copied libc6.so to GDB's
cwd and the patch worked (will investigate this next week).
Submitted upstream, currently under review.
--
[]'s
Thiago Jung Bauermann
Linaro Toolchain Working Group
Hi,
GDB for Android:
* Worked on patch which uses the correct offset for finding the PC value
inside the jmp_buf on Android binaries. Things weren't working though,
and in the end it turns out that the value used in AOSP's patch is
wrong.
--
[]'s
Thiago Jung Bauermann
Linaro Toolchain Working Group
Hi Zhenqiang. I've had a look at the difference between testsuite
results on our current softfp Natty builders and the new hard float
Precise builders. The diff and notes is at:
http://people.linaro.org/~michaelh/incoming/hard-float-builder-diff.txt
There's a lot of commonality:
/usr/bin/ld: cannot find {S,g}crt1.o: builder fault. I've fixed this.
sorry, unimplemented: Thumb-1 hard-float VFP ABI errors: tests where
they set the architecture to ARMv5T and use our default Thumb mode.
This causes the compiler to fail as it doesn't support Thumb-1 with
hard float.
arm_iwmmxt_ok5222.c:1:0: sorry, unimplemented: iWMMXt and hardware
floating point
Some are real:
+FAIL: gcc.c-torture/compile/sync-3.c -O0 (test for excess errors)
/tmp/cc3ufndj.s:436: Error: co-processor offset out of range
+FAIL: gcc.dg/pr48335-2.c (test for excess errors)
pr48335-2.c:19:30: internal compiler error: in
expand_expr_addr_expr_1, at expr.c:7527
+FAIL: gcc.dg/pr48335-5.c (test for excess errors)
pr48335-5.c:17:1: error: unrecognizable insn:
(insn 11 10 12 3 (set (reg:DI 141)
(unspec:DI [
(mem/c:DI (plus:SI (reg/f:SI 129 virtual-stack-vars)
(const_int -8 [0xfffffffffffffff8])) [2 S8 A32])
] UNSPEC_MISALIGNED_ACCESS))
/cbuild/slaves/ursa2/gcc-linaro-4.7+bzr114988~zhenqiang-chen~gnueabihf/gcc/gcc-linaro-4.7/gcc/testsuite/gcc.dg/pr48335-5.c:16
-1
(nil))
+FAIL: gcc.dg/torture/stackalign/builtin-apply-2.c -O0 execution test
Some are marked as unsupported but shouldn't be:
+UNSUPPORTED: gcc.dg/tree-ssa/gen-vect-11a.c
+UNSUPPORTED: gcc.dg/tree-ssa/gen-vect-11b.c
+UNSUPPORTED: gcc.dg/tree-ssa/gen-vect-11.c
+UNSUPPORTED: gcc.dg/tree-ssa/gen-vect-11c.c
+UNSUPPORTED: gcc.dg/tree-ssa/gen-vect-25.c
+UNSUPPORTED: gcc.dg/tree-ssa/gen-vect-26.c
+UNSUPPORTED: gcc.dg/tree-ssa/gen-vect-28.c
+UNSUPPORTED: gcc.dg/tree-ssa/gen-vect-2.c
+UNSUPPORTED: gcc.dg/tree-ssa/gen-vect-32.c
Could you look into the unsupported ones please? I'll fix the crt1
problems and respin the build.
-- Michael
The Precise based hard float auto builders are now online. Every
merge request and commit to gcc-linaro will now be built build both on
a Natty softfp system and a Precise hard float. Let's run this in
parallel for a while before updating the validation lab.
I've also updated the x86 cloud builders from Natty to Precise. A
quick test showed no regressions but I want to run them in parallel
for a bit to be sure.
-- Michael
Progress
* Proposed backport for vfp addressing modes patch.
* Investigated the build issue with EEMBC and have a candidate patch
for upstream trunk. (PR53334)
* Investigated auto-inc-dec sched changes.
* Some upstream patch review.
Plans
* Work on auto-inc-dec sched changes.
* Finish PR53334 patch upstream.
* Work through some of the speed tickets and upstream bugzilla perf
tickets in preparation for connect.
