ninja_required_version = 1.3
builddir = {{ buildroot }}
srcroot = {{ srcroot }}
modulefile = {{ modulefile }}

warnflags = $
    -Wformat=2 $
    -Winit-self $
    -Wfloat-equal $
    -Winline $
    -Wmissing-format-attribute $
    -Wmissing-include-dirs $
    -Wswitch $
    -Wundef $
    -Wdisabled-optimization $
    -Wpointer-arith $
    -Wno-attributes $
    -Wno-sign-compare $
    -Wno-multichar $
    -Wno-div-by-zero $
    -Wno-endif-labels $
    -Wno-pragmas $
    -Wno-format-extra-args $
    -Wno-unused-result $
    -Wno-deprecated-declarations $
    -Wno-unused-function $
    -Werror

ccflags = $
    -I${srcroot}/src/include $
    -I${srcroot}/src/include/x86_64 $
    -DVERSION_MAJOR={{ version.major }} $
    -DVERSION_MINOR={{ version.minor }} $
    -DVERSION_PATCH={{ version.patch }} $
    -DVERSION_GITSHA=0x{% if version.dirty %}1{% else %}0{% endif %}{{ version.sha }} $
    -DGIT_VERSION=\"{{ version.major }}.{{ version.minor }}.{{ version.patch }}-{{ version.sha }}\" $
    -DGIT_VERSION_WIDE=L\"{{ version.major }}.{{ version.minor }}.{{ version.patch }}-{{ version.sha }}\" $
    $warnflags

asflags = $
    -DVERSION_MAJOR={{ version.major }} $
    -DVERSION_MINOR={{ version.minor }} $
    -DVERSION_PATCH={{ version.patch }} $
    -DVERSION_GITSHA=0x{% if version.dirty %}1{% else %}0{% endif %}{{ version.sha }}

cflags = -std=c11
cxxflags = -std=c++14
libs =

rule cc
    deps = gcc
    depfile = $out.d
    description = Compiling $name
    command = $cc -MMD -MF $out.d $ccflags $cflags -o $out -c $in

rule dump_cc_defs
    description = Dumping CC defines for $target
    command = echo "" | $cc $ccflags $cflags -dM -E - > $out

rule dump_cc_run
    description = Dumping CC arguments for $target
    command = $
        echo "#!/bin/bash" > $out; $
        echo '$cc $ccflags $cflags $$*' > $out; $
        chmod a+x $out

rule cxx
    deps = gcc
    depfile = $out.d
    description = Compiling $name
    command = $cxx -MMD -MF $out.d $cxxflags $ccflags -o $out -c $in

rule dump_cxx_defs
    description = Dumping C++ defines for $target
    command = echo "" | $cxx -x c++ $cxxflags $ccflags -dM -E - > $out

rule dump_cxx_run
    description = Dumping C++ arguments for $target
    command = $
        echo "#!/bin/bash" > $out; $
        echo '$cc $cxxflags $ccflags $$*' > $out; $
        chmod a+x $out

rule nasm
    deps = gcc
    depfile = $out.d
    description = Assembling $name
    command = $nasm -o $out -felf64 -MD $out.d $asflags $in

rule exe
    description = Linking $name
    command = $ld $ldflags -o $out $in $libs

rule lib
    description = Archiving $name
    command = $ar qcs $out $in

rule regen
    generator = true
    description = Regenrating build files
    command = {{ generator }} $builddir $modulefile

rule cp
    description = Copying $name
    command = cp $in $out

rule makerd
    description = Making init ramdisk
    command = $builddir/native/makerd $in $out

rule makeefi
    description = Converting $name
    command = objcopy $
        -j .text $
        -j .sdata $
        -j .data $
        -j .dynamic $
        -j .dynsym $
        -j .rel $
        -j .rela $
        -j .reloc $
        --target=efi-app-x86_64 $
        $in $out

rule makefat
    description = Creating $name
    command = $
        cp $srcroot/assets/diskbase.img $out; $
        mcopy -s -D o -i $out@@1M $builddir/fatroot/* ::/

rule strip
    description = Stripping $name
    command = $
        cp $in $out; $
        objcopy --only-keep-debug $out $out.debug; $
        strip -g $out; $
        objcopy --add-gnu-debuglink=$out.debug $out


{% for target in targets %}
subninja {{ target }}/target.ninja
{% endfor %}

build $
    {%- for buildfile in buildfiles %}
    {{ buildfile }} $
    {%- endfor %}
    : regen | $
    {%- for template in templates %}
    {{ template }} $
    {%- endfor %}
    $modulefile $
    {{ generator }}

build $builddir/ovmf.fd : cp $srcroot/assets/ovmf/x64/ovmf.fd
    name = ovmf.fd

build $builddir/ovmf_debug.fd : cp $srcroot/assets/ovmf/x64/ovmf_debug.fd
    name = ovmf_debug.fd

build $builddir/popcorn.elf | $builddir/popcorn.elf.debug : strip $builddir/host/popcorn.elf
    name = kernel

build $builddir/popcorn.elf-gdb.py : cp ${srcroot}/assets/debugging/popcorn.elf-gdb.py
    name = kernel debug python scripts

build $builddir/fatroot/popcorn.elf : cp $builddir/popcorn.elf
    name = kernel to FAT image

build $builddir/fatroot/efi/boot/bootx64.efi : cp $builddir/boot/boot.efi
    name = bootloader to FAT image

build $builddir/fatroot/initrd.img : makerd ${srcroot}/assets/initrd.toml | $
    ${builddir}/native/makerd $
    ${builddir}/host/nulldrv

build $builddir/popcorn.img : makefat | $
    $builddir/fatroot/initrd.img $
    $builddir/fatroot/popcorn.elf $
    $builddir/fatroot/efi/boot/bootx64.efi
    name = popcorn.img

# vim: ft=ninja et ts=4 sts=4 sw=4