114 lines
3.5 KiB
Bash
114 lines
3.5 KiB
Bash
#!/bin/sh
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COMMON_CC_EXTRA_FLAGS="-O3 -Wall -Wextra"
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COMMON_CC_FLAGS="-std=c23 -ffreestanding -I include ${COMMON_CC_EXTRA_FLAGS}"
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KERNEL_CC_FLAGS="-mno-sse -I dependencies/limine ${COMMON_CC_FLAGS}"
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#in the future user code will be allowed to use sse
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USER_CC_FLAGS="-mno-sse ${COMMON_CC_FLAGS}"
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if [ -e build.ninja ]; then
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echo build.ninja already exists.
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exit
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fi
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set -e
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echo "rule nasm" >> build.ninja
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echo " command = nasm -f elf64 \$in -o \$out" >> build.ninja
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echo "rule kernel_cc" >> build.ninja
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echo " depfile = \$out.d" >> build.ninja
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echo " command = cc -c -MD -MF \$out.d ${KERNEL_CC_FLAGS} \$in -o \$out" >> build.ninja
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echo "rule user_cc" >> build.ninja
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echo " depfile = \$out.d" >> build.ninja
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echo " command = cc -c -MD -MF \$out.d ${USER_CC_FLAGS} \$in -o \$out" >> build.ninja
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echo "rule kernel_ld" >> build.ninja
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echo " command = ld -T src/kernel/link.ld \$in -o \$out" >> build.ninja
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echo "rule user_lib_ld" >> build.ninja
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echo " command = ld -r \$in -o \$out" >> build.ninja
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#eventually maybe a libc will be linked in
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echo "rule user_app_ld" >> build.ninja
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echo " command = ld \$in -o \$out" >> build.ninja
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#builds everything in a directory
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# $1 - source directory
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# $2 - cc rule
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# $3 - ld rule
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# $4 - linked object name
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# $5 - extra objects to link in
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build_all() {
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sources="$1/*.asm $1/*.c"
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objects="$5"
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for src in $sources; do
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if echo $src | grep -q -v '*'; then
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build=$(echo $src | sed -e 's/^src/build/').o
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if echo $src | grep -q '.c$'; then
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echo "build $build: $2 $src" >> build.ninja
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else
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echo "build $build: nasm $src" >> build.ninja
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fi
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objects="$objects $build"
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fi
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done
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build_dir=$(echo $1 | sed -e 's/^src/build/')
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echo "build $build_dir/$4: $3 $objects" >> build.ninja
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}
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build_all src/kernel kernel_cc kernel_ld kernel.elf
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for dir in src/user-libs/*; do
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lib_name=$(echo $dir | sed -e 's/^src\/user-libs\///')
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build_all $dir user_cc user_lib_ld lib$lib_name.o
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done
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cp_apps=""
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app_deps=""
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for dir in src/user-apps/*; do
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if [ -e $dir/libraries.txt ]; then
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lib_paths=$(cat $dir/libraries.txt | sed -e 's/^.*$/build\/user-libs\/\0\/lib\0.o/' | tr '\n' ' ')
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else
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lib_paths=""
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fi
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app_name=$(echo $dir | sed -e 's/^src\/user-apps\///')
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build_all $dir user_cc user_app_ld $app_name.elf "$lib_paths"
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build_elf=$(echo $dir | sed -e 's/^src/build/')/$app_name.elf
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disk_dir=build/disk/calcite/apps/$app_name
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disk_elf=$disk_dir/$app_name.elf
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cp_apps=$(echo "$cp_apps" \
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"mkdir -p $disk_dir &&" \
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"cp $build_elf $disk_elf &&")
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app_deps="$app_deps $build_elf"
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done
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echo "rule disk" >> build.ninja
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echo " command =" \
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"rm -rf build/disk &&" \
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"cp -r disk build/disk &&" \
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"cp dependencies/limine/limine-uefi-cd.bin build/disk/limine/ &&" \
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"cp dependencies/limine/limine-bios-cd.bin build/disk/limine/ &&" \
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"cp dependencies/limine/limine-bios.sys build/disk/limine/ &&"\
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"mkdir -p build/disk/EFI/BOOT &&" \
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"cp dependencies/limine/BOOTX64.EFI build/disk/EFI/BOOT/ &&" \
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"mkdir -p build/disk/calcite &&" \
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"cp build/kernel/kernel.elf build/disk/calcite/ &&" \
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$cp_apps \
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"xorriso -as mkisofs -R -r -J -b limine/limine-bios-cd.bin -no-emul-boot -boot-load-size 4 -boot-info-table -hfsplus -apm-block-size 2048 --efi-boot limine/limine-uefi-cd.bin -efi-boot-part --efi-boot-image --protective-msdos-label build/disk -o build/disk.iso &&" \
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"dependencies/limine/limine bios-install build/disk.iso" >> build.ninja
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echo "build build/disk.iso: disk | build/kernel/kernel.elf $app_deps" >> build.ninja
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echo "default build/disk.iso" >> build.ninja
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