77 lines
1.8 KiB
Bash
Executable File
77 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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# Build and run kernel with picolibc
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set -e
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# Paths
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PICOLIBC_INSTALL="$(pwd)/picolibc-install"
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BUILD_DIR="build"
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OUT_DIR="$BUILD_DIR/out"
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# Check if picolibc is installed
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if [ ! -d "$PICOLIBC_INSTALL" ]; then
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echo "Error: Picolibc not found at $PICOLIBC_INSTALL"
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echo "Please run: make picolibc"
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exit 1
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fi
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# Create build directories
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mkdir -p "$BUILD_DIR"
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mkdir -p "$OUT_DIR"
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# Copy JavaScript source to build directory
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cp src/os/index.js build/
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# Generate embedded JavaScript header
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echo "Generating embedded JavaScript..."
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python3 scripts/embed_js.py build/index.js > "$BUILD_DIR/embedded_js.h"
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# Compiler flags
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CFLAGS="-m32 -march=i686 -ffreestanding -nostdlib -fno-builtin"
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CFLAGS="$CFLAGS -I$PICOLIBC_INSTALL/include"
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CFLAGS="$CFLAGS -I./src/lib"
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CFLAGS="$CFLAGS -I./src"
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CFLAGS="$CFLAGS -I$BUILD_DIR"
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CFLAGS="$CFLAGS -Wall -Wextra"
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LDFLAGS="-m elf_i386 -nostdlib"
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LDFLAGS="$LDFLAGS -L$PICOLIBC_INSTALL/lib"
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# Get libgcc path
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LIBGCC=$(gcc -m32 -print-libgcc-file-name)
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echo "=== Building kernel with picolibc ==="
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# Build boot assembly
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echo "Assembling boot code..."
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nasm -f elf32 src/boot/kernel.asm -o "$BUILD_DIR/kasm.o"
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# Build duktape
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echo "Building Duktape..."
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gcc $CFLAGS -c src/lib/duktape.c -o "$BUILD_DIR/duktape.o"
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# Build kernel
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echo "Building kernel..."
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gcc $CFLAGS -c src/kernel/kernel.c -o "$BUILD_DIR/kc.o"
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# Build syscalls
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echo "Building syscalls..."
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gcc $CFLAGS -c src/lib/syscalls.c -o "$BUILD_DIR/syscalls.o"
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# Link everything together
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echo "Linking kernel..."
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ld $LDFLAGS -T src/link.ld -o "$OUT_DIR/kernel" \
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"$BUILD_DIR/kasm.o" \
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"$BUILD_DIR/kc.o" \
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"$BUILD_DIR/duktape.o" \
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"$BUILD_DIR/syscalls.o" \
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-lc "$LIBGCC"
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echo ""
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echo "=== Build complete! ==="
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echo ""
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echo "Running kernel in QEMU..."
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echo "(Press Ctrl+A then X to exit)"
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echo ""
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qemu-system-i386 -kernel "$OUT_DIR/kernel" |