[oe] [PATCH 1/2] mozjs: set -fno-schedule-insns2 on both CFLAGS and CXXFLAGS

[Andy]

Hi,

Am Do., 2. Aug. 2018 um 10:34 Uhr schrieb Khem Raj <raj.khem at gmail.com>:
>
> Hi Ricardo
>
>
> On Tue, Jul 31, 2018 at 8:06 PM Ricardo Salveti <ricardo at foundries.io> wrote:
> >
> > Mozjs fails to start on several architectures due broken build
> > optimizations when building with GCC >= 6.
> >
> > Set -fno-schedule-insns2 as workaround (flag also used by Firefox and
> > Debian).
> >
> > Signed-off-by: Ricardo Salveti <ricardo at foundries.io>
> > ---
> >  meta-oe/recipes-extended/mozjs/mozjs_52.8.1.bb | 5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/meta-oe/recipes-extended/mozjs/mozjs_52.8.1.bb b/meta-oe/recipes-extended/mozjs/mozjs_52.8.1.bb
> > index da80b63..adc27ac 100644
> > --- a/meta-oe/recipes-extended/mozjs/mozjs_52.8.1.bb
> > +++ b/meta-oe/recipes-extended/mozjs/mozjs_52.8.1.bb
> > @@ -30,6 +30,11 @@ CONFLICT_DISTRO_FEATURES_mipsarchn32 = "ld-is-gold"
> >
> >  DEPENDS += "nspr zlib"
> >
> > +# Avoid broken JIT on several architectures (from Firefox and Debian)
> > +# https://bugzilla.mozilla.org/show_bug.cgi?id=1245783
> > +CFLAGS += "-fno-schedule-insns2"
> > +CXXFLAGS += "-fno-schedule-insns2"
> > +
>
> Could you test with -fno-tree-vrp -fno-strict-aliasing
> -fno-delete-null-pointer-checks instead of -fno-schedule-insns2
>

at least polkit is able to start again using

CFLAGS += "-fno-tree-vrp -fno-strict-aliasing -fno-delete-null-pointer-checks"
CXXFLAGS += "-fno-tree-vrp -fno-strict-aliasing -fno-delete-null-pointer-checks"

before I got:
Assertion failure: !joinable()
in cortexa7t2hf-neon-poky-linux-gnueabi/mozjs/52.8.1-r0/mozjs-52.8.1/js/src/threading/Thread.h:122

Andy