[Buildroot] [PATCH 3/6] package/Makefile.in: Use gcc spec files for PIE build flags

[Matthew Weber]

Stefan,
On Tue, Aug 7, 2018 at 12:02 PM Matthew Weber
<matthew.weber at rockwellcollins.com> wrote:
>
> On Thu, Jul 19, 2018 at 8:10 AM Sørensen, Stefan
> <Stefan.Sorensen at spectralink.com> wrote:
> >
> > On Thu, 2018-07-19 at 07:58 -0500, Matthew Weber wrote:
> > > > It works fine with a single spec file - I used two different files
> > > > since I was keeping CFLAGS and LDFLAGS separate.
> > > >
> > >
> > > Something in the syntax then would have to change, right?  I combined
> > > the files and was getting CC errors.
> >
> > That was what I did - I have not run into any problems. Any particular
> > packages that fails?
>
> attr pkg during the configuring stage
> https://paste.ubuntu.com/p/wdn3Pjsd39/
>
> I can work up a simple defconfig but I didn't get to far before I ran into this.
>
> The combined specs file looked like.
> *cc1_options:
> + %{!r:%{!fpie:%{!fPIE:%{!fpic:%{!fPIC:%{!fno-pic:-fPIE}}}}}}
> *self_spec:
> + %{!static:%{!shared:%{!r:-pie}}}
>

Config to reproduce.
BR2_aarch64=y
BR2_SSP_STRONG=y
BR2_RELRO_FULL=y
BR2_FORTIFY_SOURCE_2=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
BR2_SYSTEM_DHCP="eth0"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.13.6"
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux-4.13.config"
BR2_PACKAGE_ATTR=y
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_4=y
# BR2_TARGET_ROOTFS_TAR is not set




-- 
Matthew L Weber / Pr Software Engineer
Airborne Information Systems / RC Linux Secure Platforms
MS 131-100, C Ave NE, Cedar Rapids, IA, 52498, USA
www.rockwellcollins.com

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