On Thu, Feb 11, 2016 at 10:03 AM, Josh Boyer <jwboyer@xxxxxxxxxxxxxxxxx> wrote: > The kernel-headers package it primarily used in Fedora to build the > toolchain components. This works fine for native builds, but we do > not have cross-architecture headers available. That means that the > cross compiler toolchains we have can only be built without headers > and therefore are only useful for building the kernel. Given that > Fedora does not allow cross-compiling of it's packages, that hasn't > been a problem to date. > > However, the toolchains might be used by application developers to > build their own software. Providing the ability to build cross > toolchains that offer glibc as well may benefit these users. This > provides a kernel-cross-headers package that will at least allow > this possibility. Scratch build with this patch included: http://koji.fedoraproject.org/koji/taskinfo?taskID=12930336 josh > --- > kernel.spec | 47 +++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 47 insertions(+) > > diff --git a/kernel.spec b/kernel.spec > index 5578b2c..5253426 100644 > --- a/kernel.spec > +++ b/kernel.spec > @@ -90,6 +90,7 @@ Summary: The Linux kernel > %define with_debug %{?_without_debug: 0} %{?!_without_debug: 1} > # kernel-headers > %define with_headers %{?_without_headers: 0} %{?!_without_headers: 1} > +%define with_cross_headers %{?_without_cross_headers: 0} %{?!_without_cross_headers: 1} > # perf > %define with_perf %{?_without_perf: 0} %{?!_without_perf: 1} > # tools > @@ -227,6 +228,7 @@ Summary: The Linux kernel > %ifarch noarch > %define with_up 0 > %define with_headers 0 > +%define with_cross_headers 0 > %define with_tools 0 > %define with_perf 0 > %define all_arch_configs kernel-%{version}-*.config > @@ -291,6 +293,7 @@ Summary: The Linux kernel > # just like we used to only build them on i386 for x86 > %ifnarch armv7hl > %define with_headers 0 > +%define with_cross_headers 0 > %define with_perf 0 > %define with_tools 0 > %endif > @@ -649,6 +652,17 @@ header files define structures and constants that are needed for > building most standard programs and are also needed for rebuilding the > glibc package. > > +%package cross-headers > +Summary: Header files for the Linux kernel for use by cross-glibc > +Group: Development/System > +%description cross-headers > +Kernel-cross-headers includes the C header files that specify the interface > +between the Linux kernel and userspace libraries and programs. The > +header files define structures and constants that are needed for > +building most standard programs and are also needed for rebuilding the > +cross-glibc package. > + > + > %package bootwrapper > Summary: Boot wrapper files for generating combined kernel + initrd images > Group: Development/System > @@ -1738,6 +1752,33 @@ find $RPM_BUILD_ROOT/usr/include \ > > %endif > > +%if %{with_cross_headers} > +mkdir -p $RPM_BUILD_ROOT/usr/tmp-headers > +make ARCH=%{hdrarch} INSTALL_HDR_PATH=$RPM_BUILD_ROOT/usr/tmp-headers headers_install_all > + > +find $RPM_BUILD_ROOT/usr/tmp-headers/include \ > + \( -name .install -o -name .check -o \ > + -name ..install.cmd -o -name ..check.cmd \) | xargs rm -f > + > +# Copy all the architectures we care about to their respective asm directories > +for arch in arm arm64 powerpc s390 x86 ; do > +mkdir -p $RPM_BUILD_ROOT/usr/${arch}-linux-gnu/include > +mv $RPM_BUILD_ROOT/usr/tmp-headers/include/asm-${arch} $RPM_BUILD_ROOT/usr/${arch}-linux-gnu/include/asm > +cp -a $RPM_BUILD_ROOT/usr/tmp-headers/include/asm-generic $RPM_BUILD_ROOT/usr/${arch}-linux-gnu/include/. > +done > + > +# Remove the rest of the architectures > +rm -rf $RPM_BUILD_ROOT/usr/tmp-headers/include/arch* > +rm -rf $RPM_BUILD_ROOT/usr/tmp-headers/include/asm-* > + > +# Copy the rest of the headers over > +for arch in arm arm64 powerpc s390 x86 ; do > +cp -a $RPM_BUILD_ROOT/usr/tmp-headers/include/* $RPM_BUILD_ROOT/usr/${arch}-linux-gnu/include/. > +done > + > +rm -rf $RPM_BUILD_ROOT/usr/tmp-headers > +%endif > + > %if %{with_perf} > # perf tool binary and supporting scripts/binaries > %{perf_make} DESTDIR=$RPM_BUILD_ROOT lib=%{_lib} install-bin install-traceevent-plugins > @@ -1924,6 +1965,12 @@ fi > /usr/include/* > %endif > > +%if %{with_cross_headers} > +%files cross-headers > +%defattr(-,root,root) > +/usr/*-linux-gnu/include/* > +%endif > + > %if %{with_bootwrapper} > %files bootwrapper > %defattr(-,root,root) > -- > 2.5.0 > _______________________________________________ > kernel mailing list > kernel@xxxxxxxxxxxxxxxxxxxxxxx > http://lists.fedoraproject.org/admin/lists/kernel@xxxxxxxxxxxxxxxxxxxxxxx _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx http://lists.fedoraproject.org/admin/lists/kernel@xxxxxxxxxxxxxxxxxxxxxxx
