From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Wed, 2 May 2018 14:52:56 +0200 Subject: [Buildroot] [PATCH] package/python: add upstream GCC8 build fix In-Reply-To: <20180502111448.14995-1-chemobejk@gmail.com> References: <20180502111448.14995-1-chemobejk@gmail.com> Message-ID: <20180502145256.6dec17cc@windsurf> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hello Stefan, On Wed, 2 May 2018 14:14:48 +0300, Stefan Becker wrote: > Fedora 28 switched to GCC8. > > Signed-off-by: Stefan Becker I've applied, after fixing one small formatting issue, see below. > --- > package/python/0035-GCC8-alignment-fix.patch | 66 ++++++++++++++++++++ > 1 file changed, 66 insertions(+) > create mode 100644 package/python/0035-GCC8-alignment-fix.patch > > diff --git a/package/python/0035-GCC8-alignment-fix.patch b/package/python/0035-GCC8-alignment-fix.patch > new file mode 100644 > index 0000000000..34618d9b18 > --- /dev/null > +++ b/package/python/0035-GCC8-alignment-fix.patch > @@ -0,0 +1,66 @@ > +From 0b91f8a668201fc58fa732b8acc496caedfdbae0 Mon Sep 17 00:00:00 2001 > +From: Florian Weimer > +Date: Sun, 29 Apr 2018 12:18:33 -0700 > +Subject: [PATCH] Indicate that _PyGC_Head is only 8-byte aligned. (closes > + bpo-33374) > + > +By spec, the "long double" in _PyGC_Head requires the union to always be 16-byte > +aligned. However, obmalloc only yields 8-byte alignment. Compilers including GCC > +8 are starting to use alignment information to do store-merging. So, the "long > +double" needs to be changed to a simple "double" as was long ago done in Python > +3 by e348c8d154cf6342c79d627ebfe89dfe9de23817. For 2.7, we need to add some > +dummy padding to make sure _PyGC_Head stays the same size. The Upstream status and SoB should have been here. > +--- > + Include/objimpl.h | 17 ++++++++++++++++- > + .../2018-04-29-12-07-00.bpo-33374.-xegL6.rst | 3 +++ > + 2 files changed, 19 insertions(+), 1 deletion(-) > + create mode 100644 Misc/NEWS.d/next/Core and Builtins/2018-04-29-12-07-00.bpo-33374.-xegL6.rst > + > +Upstream: https://bugs.python.org/issue33374 > +Signed-off-by: Stefan Becker Not here. Once again: applied with this issue fixed. Thanks a lot! Peter: I guess we want this as well for 2018.02.x. Best regards, Thomas -- Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com