[OE-core] [PATCH][morty] gcc6: Upgrade to 6.4.0 (latest stable series release)

[Martin Jansa]

On Mon, Mar 05, 2018 at 01:51:59AM -0800, Andre McCurdy wrote:
> On Mon, Mar 5, 2018 at 1:19 AM, Martin Jansa <martin.jansa at gmail.com> wrote:
> > Thanks Andre!
> >
> > I've seen another failure probably caused by this gcc upgrade in morty-next:
> >
> > python-matplotlib triggers ICE:
> >
> > src/_png.cpp: In function 'void init_png()':
> > src/_png.cpp:497:25: warning: variable '_png' set but not used
> > [-Wunused-but-set-variable]
> >      static _png_module* _png = NULL;
> >                          ^~~~
> > src/_png.cpp: In member function 'Py::Object _png_module::read_png(const
> > Py::Tuple&)':
> > src/_png.cpp:272:1: internal compiler error: Segmentation fault
> >  _png_module::read_png(const Py::Tuple& args)
> >  ^~~~~~~~~~~
> > Please submit a full bug report,
> > with preprocessed source if appropriate.
> > See <http://gcc.gnu.org/bugs.html> for instructions.
> > error: command 'i586-oe-linux-gcc' failed with exit status 1
> > ERROR: Function failed: do_compile (log file is located at
> > python-matplotlib/1.1.0-r1/temp/log.do_compile.15213)
> >
> > I'll try to build it with Khem's and Andre's patches only to eliminate
> > hjl/indirect/gcc-6-branch/master changes.
> >
> 
> FWIW, I see the same error with my OE 2.2 + gcc 6.4.0 based distro.
> The ICE only happens if I build with -O2 though (the build is clean
> with -Os, which I use by default).
> 
> In case it's useful to anyone, my branch of morty with a gcc 6.4.0 backport is:
> 
>   git clone https://github.com/lgirdk/openembedded-core.git --branch oe22b

You're right with 14 cherry-picks from your branch instead of 6.4
upgrade from Juro

8e6e2e3 gcc6: enable FL_LPAE flag for armv7ve cores
756e8f2 gcc6: Fix unaligned STRD issue on ARM
33e717b tcmode-default.inc: update GCCVERSION 6.3 -> 6.4
bb03bfd gcc6: Upgrade to 6.4
cf3be39 gcc-runtime: Disable libitm on riscv
8e0fa79 gcc-6.3: Backport patch to fix ICE on ARM
a77c5c4 gcc-6.3.inc: Use ucontext_t not struct ucontext.
c5376cb gcc-6.3: backport fix of check for empty string in ubsan.c
322dd7f gcc: Remove unused patch
07e888e gcc: Fix CVE-2016-6131 in libiberty
8c5205d gcc-6: Add fix for missing no-PIE flags
cf3da73 gcc-6: Sync gcc stddef.h with musl stddef.h
953f3e2 gcc6: Upgrade to 6.3.0
60ded51 Revert "gcc-6.2: backport fix of check for empty string in ubsan.c"

I can still reproduce it with -O2 and doesn't fail with -Os.

It also doesn't fail with matplotlib 2.0.2 version if I cherry-pick:
commit 10c8c39c25d902ab5268fa48ac2bc0e42e65b179
Author: Khem Raj <raj.khem at gmail.com>
Date:   Fri Sep 1 15:27:20 2017 -0700

    python-matplotlib: Upgrade to 2.0.2

from meta-oe/rocko as well.

Thanks

-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa at gmail.com
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