#
# RTEMS BSP Support
#

#
# The RTEMS BSP support requires the host tuple, the RTEMS BSP and the path to
# the tools. The prefix is set to an installed RTEMS. The built package is
# installed into the prefix.
#
# Keeping the package's installed path in the RTEMS install path and separate
# to the tools lets the tools version vary independently.
#
# Provide the path to the RTEMS tools is not in the prefix with the
# --with-tools option. If --with-tools is not provided use the prefix.
#
# Provide the path to the installed RTEMS kernel is not in the prefix with the
# --with-rtems option. If --with-rtems is not provided use the prefix.
#
# Note, only a single path (--with-rtems) for the RTEMS kernel and any other
# add on or 3rd party libraries is supported.
#

#
# If a dry-run and with download ignore errors and correct setting for tools
# and BSPs. Only after the source to download.
#
%if %{_dry_run} && %{defined with_download}
 %log BSP configuration errors ignored
 %define rtems_bsp_error 0
%else
 %define rtems_bsp_error 1
%endif

#
# The target is used by compilers or Cxc builds.
#
%if %{_target} != %{nil}
 %error RTEMS BSP builds use --host and not --target
%endif

#
# We need a host from the user to specifiy the RTEMS architecture and major
# version.
#
%if %{_host} == %{nil} && %{rtems_bsp_error}
 %error No RTEMS host or BSP specified: --host=<arch>-rtems<ver>
%endif

#
# We need a BSP from the user.
#
%ifn %{defined with_rtems_bsp}
 %if %{rtems_bsp_error}
  %error No RTEMS BSP specified: --rtems-bsp=arch/bsp (or --with-rtems-bsp=bsp)
 %endif
 %define with_rtems_bsp sparc/erc32
%endif

#
# If no tools or RTEMS provided use the prefix.
#
%ifn %{defined with_tools}
 %define with_tools %{_prefix}
%endif

%ifn %{defined with_rtems}
 %define with_rtems %{_prefix}
%endif

#
# Set the path to the tools.
#
%{path prepend %{with_tools}/bin}

#
# Set up how we manage pkgconfig. Set the prefix path to the RTEMS prefix,
# enable support when crosscompiling, and filter specific optimisation and
# warning from the flags that RTEMS exports.
#
%{pkgconfig prefix %{with_rtems}/lib/pkgconfig}
%{pkgconfig crosscompile yes}
%{pkgconfig filter-flags yes}

#
# The RTEMS BSP Flags
#
%define rtems_bsp         %{with_rtems_bsp}
%define rtems_bsp_ccflags %{pkgconfig ccflags %{_host}-%{rtems_bsp}}
%define rtems_bsp_cflags  %{pkgconfig cflags  %{_host}-%{rtems_bsp}}
%define rtems_bsp_ldflags %{pkgconfig ldflags %{_host}-%{rtems_bsp}}
%define rtems_bsp_libs    %{pkgconfig libs    %{_host}-%{rtems_bsp}}

%if %{rtems_bsp_cflags} == %{nil} && %{rtems_bsp_error}
 %error No RTEMS BSP CFLAGS found; Please check the --rtems-bsp option.
%endif

%if %{rtems_bsp_ccflags} == %{nil}
 %define rtems_bsp_ccflags %{rtems_bsp_cflags}
%endif

#
# RTEMS BSP paths
#
%define rtems_bsp_cc      %{_host}-gcc
%define rtems_bsp_incpath %{with_rtems}/%{_host}/%{rtems_bsp}/include
%define rtems_bsp_libpath %{with_rtems}/%{_host}/%{rtems_bsp}/lib

#
# Check for installed libraries.
#
# - Check is LibBSD is install
# - Add librtemsdefaultconfig so configure scripts work.
#
# Note: default BSP flags include the standard RTEMS libraries.
#
%define rtems-dep-check %(%{_sbdir}/sb/rtems-build-dep -c %{with_tools}/bin/%{rtems_bsp_cc}

%define rtems-libbsd %{rtems-dep-check} -L %{rtems_bsp_libpath} -l libbsd.a)
%if %{rtems-libbsd} == found
 %define rtems_bsp_libs %{rtems_bsp_libs} -lbsd -lm -lz
%endif

%define rtems-defaultconfig %{rtems-dep-check} -L %{rtems_bsp_libpath} -l librtemsdefaultconfig.a)
%if %{rtems-defaultconfig} == found
 %define rtems_bsp_libs %{rtems_bsp_libs} -lrtemsdefaultconfig
%endif

#
# Update the configure paths to be BSP specific.
#
%define rtems_bsp_prefix  %{_prefix}/%{_host}/%{rtems_bsp}
%define _exec_prefix      %{rtems_bsp_prefix}
%define _bindir           %{_exec_prefix}/bin
%define _sbindir          %{_exec_prefix}/sbin
%define _libexecdir       %{_exec_prefix}/libexec
%define _datarootdir      %{_exec_prefix}/share
%define _datadir          %{_datarootdir}
%define _sysconfdir       %{_exec_prefix}/etc
%define _sharedstatedir   %{_exec_prefix}/com
%define _localstatedir    %{_exec_prefix}/var
%define _includedir       %{_libdir}/include
%define _lib              lib
%define _libdir           %{_exec_prefix}/%{_lib}
%define _libexecdir       %{_exec_prefix}/libexec
%define _mandir           %{_datarootdir}/man
%define _infodir          %{_datarootdir}/info
%define _localedir        %{_datarootdir}/locale
%define _localedir        %{_datadir}/locale
%define _localstatedir    %{_exec_prefix}/var

#
# Map to names used for cross compiling.
#
%define host_includes -I%{_includedir}
%define host_cflags   %{rtems_bsp_cflags}
%define host_cxxflags %{rtems_bsp_ccflags}
%define host_ldflags  %{rtems_bsp_ldflags}
%define host_libs     %{rtems_bsp_libs}