== Progress ==
* Pointer mangling Aarch64 glibc.
Posted patch on pointer mangling. Worked on review comments from maintainer.
Tested on V8 foundation model.
== Plan ==
- Continue working on review comments for Pointer Guard support in
Aarch64 glibc,
- Continue Cbuildv2.
- Investigate PGO for Aarch64.
== Issues ==
Waiting for feedback on libssp machine descriptions changes.
== Issues ==
* None
== Progress ==
* One day off (Dec. 27).
* Prepare toolchain binaries release
- Backport the newlib patches for ftruncate() and truncate() stubs
- Test and update binutils version to linaro-2.24-2013.12 and
workaround gold compile fail issue.
* Retest -fira-loop-pressure performance on cortex-m4. But get
regression in several suites of eembc-v1. Will re-investigate it when
aarch64 performance test is ready since it is enabled in ia64 and
rs6000, and the comment says:
/* Numerous experiment shows that IRA based loop pressure
calculation works better for RTL loop invariant motion on targets
with enough (>= 32) registers. It is an expensive optimization.
So it is on only for peak performance. */
* R/M toolchain related work.
== Plan ==
* Linaro toolchain binaries 2013.12 release
== Progress ==
* ARM Process Record made the changes pointed out in maintainers
comments. [3/10] [TCWG-336] [TCWG-338] [TCWG-339]
- Put the new bug fixes patches on hold as they can be sent in the
same series.[TCWG-317] [TCWG-315]
* Time off for setting up new office space. [4/10]
- Found a good room for office in a central location, need to get
internet and other stuff working before shifting. I will get started
on that once I get the possession of the space next week.
* Time off for Macau visa information [1/10]
* 25th December Public Holiday [2/10]
== Plan ==
* ARM Process Record:
- Create new patches as per maintainers suggestions, incorporating bug
fixes as separate patches in the list.
- Test and send all patches upstream.
* New office space setup, will be away from my desk for few hours.
Hi,
seen in a segfault running the tests in the coinor-osi package,
https://launchpad.net/bugs/1263576, both in saucy and trusty, version 0.106.4
and 0.106.5. Version 0.103 doesn't show the issue.
both the 4.7 and 4.8 linaro branches show this behaviour, and trunk 20131121
(didn't build a newer one yet).
William Grant tracked that down to a bug with very negative vcall_offsets in
aarch64 multiple inheritance thunks. The example below has two consecutive
thunks, with the second adding 263 instead of subtracting 264.
aarch64_build_constant seems to not handle negative integers. He tried a quick
gcc patch to avoid using aarch64_build_constant, and the coinor-osi tests succeed.
0000000000401ca4 <_ZTv0_n256_N1C2adEv>:
401ca4: f9400010 ldr x16, [x0]
401ca8: f8500211 ldr x17, [x16,#-256]
401cac: 8b110000 add x0, x0, x17
401cb0: 17fffff9 b 401c94 <_ZN1C2adEv>
[...]
0000000000401cc4 <_ZTv0_n264_N1C2aeEv>:
401cc4: f9400010 ldr x16, [x0]
401cc8: d28020f1 mov x17, #0x107 // #263
401ccc: f8716a11 ldr x17, [x16,x17]
401cd0: 8b110000 add x0, x0, x17
401cd4: 17fffff8 b 401cb4 <_ZN1C2aeEv>
Any chance for a quick 2013 review?
Thanks, Matthias
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -2540,8 +2540,8 @@
addr = plus_constant (Pmode, temp0, vcall_offset);
else
{
- aarch64_build_constant (IP1_REGNUM, vcall_offset);
- addr = gen_rtx_PLUS (Pmode, temp0, temp1);
+ aarch64_add_constant (IP0_REGNUM, IP1_REGNUM, vcall_offset);
+ addr = temp0;
}
aarch64_emit_move (temp1, gen_rtx_MEM (Pmode,addr));
== Progress ==
* Lots of little changes to the Jenkins configure files and
Cbuildv2 so Jenkins can do a builds in a 32 bit chroot. (4/10)
* Misc - meetings and misc tasks (2/10).
* Helped with binutils & GCC releases. 4/10)
* New Arndale Octa arrived.
== Plan ==
* Get back to adding the neon intrinsics tests to the GCC
testsuite.
* More Jenkins hacking for 32bit chroot builds.
* More hacking on binary release automation.
* Review Kugan's benchmarking support in Cbuildv2.
== Issues ==
* Loosing ssh access to many of the machines we work on is a
problem...
== Leave ==
* A bit complicated. On the road till Jan 13, offline some, mixed with
some work days depending on the weather. Should have email
access most nights.
Hi All,
I am getting a weird error while building binutils from
http://cbuild.validation.linaro.org/snapshots/Latest/binutils-linaro-2.23.2…
GCC version gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu9)
Ubuntu 13.10
Steps:
1)
/work/sources/binutils/configure --target=aarch64-unknown-linux-gnu
--prefix=/work/builds/gcc-fsf-trunk/tools
--with-sysroot=/work/builds/gcc-fsf-trunk/sysroot-aarch64-unknown-linux-gnu
2)
make
(Snip)
gcc -c -DHAVE_CONFIG_H -g -O2 -I.
-I/work/sources/binutils/libiberty/../include -W -Wall
-Wwrite-strings -Wc++-compat -Wstrict-prototypes -pedantic
/work/sources/binutils/libiberty/regex.c -o regex.o
In file included from /work/sources/binutils/libiberty/regex.c:128:0:
/usr/include/stdlib.h:510:35: error: expected ‘,’ or ‘;’ before
‘__attribute_alloc_size__’
__THROW __attribute_malloc__ __attribute_alloc_size__ ((2)) __wur;
^
make[2]: *** [regex.o] Error 1
make[2]: Leaving directory
`/work/builds/gcc-fsf-trunk/obj-aarch64-unknown-linux-gnu/binutils/libiberty'
(Snip)
Can anyone point me what is going wrong here.
regards,
Venkat,
### About Linaro binutils
Linaro binutils is a release of the GNU binutils with bug fixes and
enhancements for ARM platforms. GNU binutils is a collection of tools
including the ld linker and as assembler.
### Linaro binutils 2.24 2013.12
The Linaro Toolchain Working Group is pleased to announce the 2013.12
release of Linaro binutils 2.24.
This release is based on the latest GNU binutils 2.24 stable branch, but
with additional features and bug fixes.
### Additional Features
* Support for GNU indirect functions
### Bug Fixes
* Fixed miscalculation of GOTPLT offset for ifunc syms
* Handle static links with ifunc correctly
* Fixup IFUNC tests to work on all targets
### Source
### Release Tarball
* https://releases.linaro.org/13.12/components/toolchain/binutils-linaro
### Development Tree
* git://git.linaro.org/toolchain/binutils-gdb.git
This release was built from the linaro_binutils-2_24-2013_12_release tag.
### 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`
* Questions? [ask Linaro](http://ask.linaro.org/).
* Interested in commercial support? inquire at [Linaro
support](mailto:support@linaro.org)
== Issues ==
* none
== Progress ==
* LRA on AArch32:
o TCWG-343 : Make LRA the default for the ARM backend (8/10)
- Validated and committed a fix from Vladimir for Thumb1 issues.
- iWMMXT issue : Tried a fix without success, continue working on it.
o TCWG-345 : Analyse performance of LRA for ARM. (0/10)
- No progress this week.
* Various meetings. (2/10)
== Next ==
* Vacation
== Progress ==
* Debugged and Fixed process record memory corruption problem.
[TCWG-315][TCWG-317][8/10]
* Sick Time off [2/10]
== Plan ==
* Send patches for bug fixes and look into remaining arm-native gdb issues.
* Respond to maintainer's suggestion on process record patches.
* Public Holiday on 25th
* Time off for setting up new office space.
