%define cross_arch      riscv64
%define cross_triplet   riscv64-none-elf
%define cross_sysroot   %{_prefix}/%{cross_triplet}/sys-root

%global versionyear    2021
%global versionmonth   06
%global versionday     21

%global gccversion     10.2.0

%if 0%{!?cross_stage:1}
%define cross_stage     final
#define cross_stage     first
%endif

%if "%{cross_stage}" != "final"
%define pkg_suffix      -%{cross_stage}
%else
%define pkg_suffix      %{nil}
%endif

Name:       %{cross_triplet}-gcc%{pkg_suffix}
Version:    %{versionyear}%{versionmonth}%{versionday}
Release:    1%{?dist}
Summary:    The GNU Compiler Collection (%{cross_triplet})

Group:      Development/Languages
License:    GPLv3+ and GPLv3+ with exceptions and GPLv2+ with exceptions and LGPLv2+ and BSD
URL:        https://github.com/riscv/riscv-gnu-toolchain
Source0:    riscv-gnu-toolchain-%{versionyear}.%{versionmonth}.%{versionday}.tar.bz2

BuildRequires: texinfo, texinfo-tex, gettext, flex, bison, gcc, gcc-c++, zlib-devel, isl-devel
BuildRequires: gmp-devel, mpfr-devel, libmpc-devel, elfutils-libelf-devel
BuildRequires: %{cross_triplet}-binutils
%if 0%{?fedora} >= 29 || 0%{?rhel} >= 8
BuildRequires: python-unversioned-command
%endif
Requires:   %{cross_triplet}-binutils
Provides:   %{cross_triplet}-gcc-first = %{version}

%if "%{cross_stage}" == "final"
BuildRequires: %{cross_triplet}-newlib
%if 0%{?fedora} >= 20 || 0%{?rhel} >= 7
BuildRequires: libstdc++-static
%endif
Requires:   %{cross_triplet}-newlib
Provides:   %{cross_triplet}-gcc-first = %{version}
%endif

%description


%prep
%autosetup -n riscv-gnu-toolchain


%build
cd %{_builddir}/riscv-gnu-toolchain
mkdir -p gcc-build
cd gcc-build
AR_FOR_TARGET=%{_bindir}/%{cross_triplet}-ar \
AS_FOR_TARGET=%{_bindir}/%{cross_triplet}-as \
DLLTOOL_FOR_TARGET=%{_bindir}/%{cross_triplet}-dlltool \
LD_FOR_TARGET=%{_bindir}/%{cross_triplet}-ld \
NM_FOR_TARGET=%{_bindir}/%{cross_triplet}-nm \
OBJDUMP_FOR_TARGET=%{_bindir}/%{cross_triplet}-objdump \
RANLIB_FOR_TARGET=%{_bindir}/%{cross_triplet}-ranlib \
STRIP_FOR_TARGET=%{_bindir}/%{cross_triplet}-strip \
WINDRES_FOR_TARGET=%{_bindir}/%{cross_triplet}-windres \
WINDMC_FOR_TARGET=%{_bindir}/%{cross_triplet}-windmc \
../riscv-gcc/configure \
    --prefix=%{_prefix} \
    --mandir=%{_mandir} \
    --infodir=%{_infodir} \
    --host=%{_target_platform} \
    --build=%{_target_platform} \
    --target=%{cross_triplet} \
    --with-local-prefix=%{cross_sysroot} \
    --with-sysroot=%{cross_sysroot} \
    --with-system-zlib \
    --with-isl \
    --disable-decimal-float \
    --disable-libffi \
    --disable-libgomp \
    --disable-libmudflap \
    --disable-libquadmath \
    --disable-libssp \
    --disable-libstdcxx-pch \
    --disable-nls \
    --disable-threads \
    --enable-shared \
    --enable-tls \
    --with-gnu-as \
    --with-gnu-ld \
    --with-newlib \
%if "%{cross_stage}" == "first"
    --enable-languages=c \
    --without-headers \
%endif
%if "%{cross_stage}" == "final"
    --enable-languages=c,c++,fortran \
    --enable-plugins \
    --with-headers=yes \
%endif
    --with-python-dir=share/gcc-riscv64-none-elf \
    --with-multilib-generator="rv32i-ilp32--;rv32ic-ilp32--;rv32iac-ilp32--;rv32im-ilp32--;rv32imc-ilp32--;rv32imac-ilp32--;rv32imafc-ilp32f--;rv64imac-lp64--;rv64imafdc-lp64d--" \
    CFLAGS_FOR_TARGET="-O2 $(CFLAGS_FOR_TARGET)" \
    CXXFLAGS_FOR_TARGET="-O2 $(CXXFLAGS_FOR_TARGET)"

%if "%{cross_stage}" == "first"
make %{?_smp_mflags} all-gcc
%endif
%if "%{cross_stage}" == "final"
make %{?_smp_mflags}

cd %{_builddir}/riscv-gnu-toolchain
mkdir -p gcc-nano-build
cd gcc-nano-build
AR_FOR_TARGET=%{_bindir}/%{cross_triplet}-ar \
AS_FOR_TARGET=%{_bindir}/%{cross_triplet}-as \
DLLTOOL_FOR_TARGET=%{_bindir}/%{cross_triplet}-dlltool \
LD_FOR_TARGET=%{_bindir}/%{cross_triplet}-ld \
NM_FOR_TARGET=%{_bindir}/%{cross_triplet}-nm \
OBJDUMP_FOR_TARGET=%{_bindir}/%{cross_triplet}-objdump \
RANLIB_FOR_TARGET=%{_bindir}/%{cross_triplet}-ranlib \
STRIP_FOR_TARGET=%{_bindir}/%{cross_triplet}-strip \
WINDRES_FOR_TARGET=%{_bindir}/%{cross_triplet}-windres \
WINDMC_FOR_TARGET=%{_bindir}/%{cross_triplet}-windmc \
../riscv-gcc/configure \
    --prefix=%{_prefix} \
    --mandir=%{_mandir} \
    --infodir=%{_infodir} \
    --host=%{_target_platform} \
    --build=%{_target_platform} \
    --target=%{cross_triplet} \
    --with-local-prefix=%{cross_sysroot} \
    --with-sysroot=%{cross_sysroot} \
    --with-system-zlib \
    --with-isl \
    --disable-decimal-float \
    --disable-libffi \
    --disable-libgomp \
    --disable-libmudflap \
    --disable-libquadmath \
    --disable-libssp \
    --disable-libstdcxx-pch \
    --disable-nls \
    --disable-threads \
    --disable-shared \
    --disable-tls \
    --with-gnu-as \
    --with-gnu-ld \
    --with-newlib \
%if "%{cross_stage}" == "first"
    --enable-languages=c \
    --without-headers \
%endif
%if "%{cross_stage}" == "final"
    --enable-languages=c,c++,fortran \
    --enable-plugins \
    --with-headers=yes \
%endif
    --with-python-dir=share/gcc-riscv64-none-elf \
    --with-multilib-generator="rv32i-ilp32--;rv32ic-ilp32--;rv32iac-ilp32--;rv32im-ilp32--;rv32imc-ilp32--;rv32imac-ilp32--;rv32imafc-ilp32f--;rv64imac-lp64--;rv64imafdc-lp64d--" \
    CFLAGS_FOR_TARGET="-Os -ffunction-sections -fdata-sections $(CFLAGS_FOR_TARGET)" \
    CXXFLAGS_FOR_TARGET="-Os -ffunction-sections -fdata-sections $(CXXFLAGS_FOR_TARGET)"

make %{?_smp_mflags}
%endif

%install
cd %{_builddir}/riscv-gnu-toolchain/gcc-build

%if "%{cross_stage}" == "first"
make DESTDIR=%{buildroot} install-gcc
%endif

%if "%{cross_stage}" == "final"
make DESTDIR=%{buildroot} install
make DESTDIR=%{buildroot} install-html
#make DESTDIR=%{buildroot} install-pdf

cd %{_builddir}/riscv-gnu-toolchain/gcc-nano-build
make DESTDIR=%{buildroot}/nano install

cd %{buildroot}/nano
for t in `find . -name '*.a'`; do tt=`echo $t|sed -e s,.a$,_nano.a,`; mv $t ../$tt; done

cd ..
rm -rf nano
%endif

find %{buildroot} -name '*.la' -delete
rm -rf %{buildroot}%{_mandir}
rm -rf %{buildroot}%{_infodir}
rm -rf %{buildroot}%{_datadir}/gcc-%{gccversion}/python
rm -f %{buildroot}%{_bindir}/%{cross_triplet}-gcc-%{gccversion}
rm -f %{buildroot}%{_libdir}/libcc1.so*

install -d %{buildroot}%{_datadir}/doc/%{cross_triplet}
%if "%{cross_stage}" == "final"
mv %{buildroot}%{_datadir}/doc/{cpp,cppinternals,gcc,gccint} %{buildroot}%{_datadir}/doc/%{cross_triplet}
rm -rf %{buildroot}%{_datadir}/doc/gccinstall
rm -rf %{buildroot}%{_datadir}/doc/libiberty.*
rm -rf %{buildroot}%{_datadir}/doc/gfortran
%endif
%if "%{cross_stage}" == "first"
rm -f %{buildroot}%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/install-tools/include/limits.h
rm -f %{buildroot}%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/install-tools/include/README
rmdir %{buildroot}%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/install-tools/include
rm -f %{buildroot}%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/install-tools/fixinc_list
rm -f %{buildroot}%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/install-tools/gsyslimits.h
rm -f %{buildroot}%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/install-tools/macro_list
rm -f %{buildroot}%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/install-tools/mkheaders.conf
%endif
rm -f %{buildroot}%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/install-tools/fixinc.sh
rm -f %{buildroot}%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/install-tools/fixincl
rm -f %{buildroot}%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/install-tools/mkheaders
rm -f %{buildroot}%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/install-tools/mkinstalldirs
rmdir %{buildroot}%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/install-tools

# Don't strip libgcc.a and libgcov.a - based on Fedora Project cross-gcc.spec
%define __ar_no_strip %{_builddir}/riscv-gnu-toolchain/ar-no-strip
%if 0%{?fedora} >= 33
cat > %{__ar_no_strip} << EOF
#!/bin/sh
args="";
hasfile=0;
for arg in "\$@"; do
  if [[ \$arg != *riscv64-none-elf* ]]; then
    args="\$args \$arg"
    if [[ \$arg == *.o ]]; then
      hasfile=1
    fi
  fi
done
echo "\$args"
if [ \$hasfile -ne 0 ]; then
  /usr/bin/strip \$args
fi
EOF
%else
cat > %{__ar_no_strip} << EOF
#!/bin/sh
f=\$2
case \$(basename \$f) in
    *.a)
        ;;
    *)
        %{__strip} \$@
        ;;
esac
EOF
%endif
chmod +x %{__ar_no_strip}
%undefine __strip
%define __strip %{__ar_no_strip}

# Disable automatic requirements finding in %{cross_sysroot}
%define _use_internal_dependency_generator 0
%define __rpmdeps_command %{__find_requires}
%define __rpmdeps_skip_sysroot %{_builddir}/riscv-gnu-toolchain/rpmdeps-skip-sysroot
cat > %{__rpmdeps_skip_sysroot} << EOF
#!/bin/sh
while read oneline; do
    case \$oneline in
        %{buildroot}%{cross_sysroot}*)
            ;;
        *)
            echo \$oneline | %{__rpmdeps_command}
    esac
done
EOF
chmod +x %{__rpmdeps_skip_sysroot}
%undefine __find_requires
%define __find_requires %{__rpmdeps_skip_sysroot}


%files
%license riscv-gcc/gcc/COPYING riscv-gcc/gcc/COPYING.LIB riscv-gcc/gcc/COPYING3 riscv-gcc/gcc/COPYING3.LIB
%doc riscv-gcc/gcc/ChangeLog riscv-gcc/gcc/ChangeLog.jit riscv-gcc/gcc/ChangeLog.tree-ssa
%{_bindir}/%{cross_triplet}-cpp
%{_bindir}/%{cross_triplet}-gcc
%{_bindir}/%{cross_triplet}-gcc-ar
%{_bindir}/%{cross_triplet}-gcc-nm
%{_bindir}/%{cross_triplet}-gcc-ranlib
%{_bindir}/%{cross_triplet}-gcov
%{_bindir}/%{cross_triplet}-gcov-tool
%{_bindir}/%{cross_triplet}-gcov-dump
%{_bindir}/%{cross_triplet}-lto-dump
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include-fixed/README
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include-fixed/limits.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include-fixed/syslimits.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/stddef.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/stdarg.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/stdfix.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/varargs.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/float.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/stdbool.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/iso646.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/stdint.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/stdint-gcc.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/stdalign.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/stdnoreturn.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/stdatomic.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/tgmath.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/plugin
%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/cc1
%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/collect2
%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/lto1
%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/lto-wrapper
%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/liblto_plugin.so*
%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/plugin/gengtype
%if "%{cross_stage}" == "final"
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/include/unwind.h
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/crtbegin*.o
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/crtend*.o
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/libgcc.a
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}/libgcov.a
%{_bindir}/%{cross_triplet}-c++
%{_bindir}/%{cross_triplet}-g++
%{_bindir}/%{cross_triplet}-gfortran
%dir %{_prefix}/%{cross_triplet}
%dir %{_prefix}/%{cross_triplet}/include
%dir %{_prefix}/%{cross_triplet}/include/c++
%{_prefix}/%{cross_triplet}/include/c++/%{gccversion}
%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/cc1plus
%{_libexecdir}/gcc/%{cross_triplet}/%{gccversion}/f951
%dir %{_prefix}/%{cross_triplet}/lib
%dir %{_prefix}/%{cross_triplet}/lib/rv32i
%dir %{_prefix}/%{cross_triplet}/lib/rv32i/ilp32
%dir %{_prefix}/%{cross_triplet}/lib/rv32ic
%dir %{_prefix}/%{cross_triplet}/lib/rv32ic/ilp32
%dir %{_prefix}/%{cross_triplet}/lib/rv32iac
%dir %{_prefix}/%{cross_triplet}/lib/rv32iac/ilp32
%dir %{_prefix}/%{cross_triplet}/lib/rv32im
%dir %{_prefix}/%{cross_triplet}/lib/rv32im/ilp32
%dir %{_prefix}/%{cross_triplet}/lib/rv32imc
%dir %{_prefix}/%{cross_triplet}/lib/rv32imc/ilp32
%dir %{_prefix}/%{cross_triplet}/lib/rv32imac
%dir %{_prefix}/%{cross_triplet}/lib/rv32imac/ilp32
%dir %{_prefix}/%{cross_triplet}/lib/rv32imafc
%dir %{_prefix}/%{cross_triplet}/lib/rv32imafc/ilp32f
%dir %{_prefix}/%{cross_triplet}/lib/rv64imac
%dir %{_prefix}/%{cross_triplet}/lib/rv64imac/lp64
%dir %{_prefix}/%{cross_triplet}/lib/rv64imafdc
%dir %{_prefix}/%{cross_triplet}/lib/rv64imafdc/lp64d
%{_prefix}/%{cross_triplet}/lib/rv32i/ilp32/lib*
%{_prefix}/%{cross_triplet}/lib/rv32ic/ilp32/lib*
%{_prefix}/%{cross_triplet}/lib/rv32iac/ilp32/lib*
%{_prefix}/%{cross_triplet}/lib/rv32im/ilp32/lib*
%{_prefix}/%{cross_triplet}/lib/rv32imc/ilp32/lib*
%{_prefix}/%{cross_triplet}/lib/rv32imac/ilp32/lib*
%{_prefix}/%{cross_triplet}/lib/rv32imafc/ilp32f/lib*
%{_prefix}/%{cross_triplet}/lib/rv64imac/lp64/lib*
%{_prefix}/%{cross_triplet}/lib/rv64imafdc/lp64d/lib*
%{_prefix}/lib/gcc/%{cross_triplet}/%{gccversion}
%{_datadir}/gcc-%{cross_triplet}/libstdcxx
%{_datadir}/doc/%{cross_triplet}
%endif

%changelog
* Mon Jun 21 2021 Thomas Sailer <t.sailer@alumni.ethz.ch> - 20210621-1
- SIMD, scheduling

* Mon May 31 2021 Thomas Sailer <t.sailer@alumni.ethz.ch> - 20210531-1
- recognize k and suboptions

* Fri May 28 2021 Thomas Sailer <t.sailer@alumni.ethz.ch> - 20210528-1
- contemporary names for B instructions, add even/odd register classes

* Thu May 13 2021 Thomas Sailer <t.sailer@alumni.ethz.ch> - 20210513-1
- update, add B

* Thu Apr 08 2021 Thomas Sailer <t.sailer@alumni.ethz.ch> - 20210408-1
- update