a6e6e3d8ca
- Created apps/hello-world/hello-world.S: AT&T assembly user program that calls SYS_WRITE to print 'Hello, World' then SYS_EXIT(0) - Created apps/user.ld: linker script for user apps at 0x08048000 - Created scripts/build_apps.sh: builds each app dir into flat binary - Updated CMakeLists.txt: added apps build target in ISO pipeline - Updated gen_initrd.sh: packs built binaries from build/apps_bin/ - Updated kernel.c: replaced inline machine code with VFS-based loading of hello-world from /initrd/hello-world via cpio_find() Verified: hello-world binary (49 bytes) loads from CPIO initrd, prints 'Hello, World', and exits with code 0.
17 lines
521 B
Bash
Executable File
17 lines
521 B
Bash
Executable File
#!/bin/sh
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# Generate CPIO initial ramdisk from built application binaries.
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# Usage: gen_initrd.sh <binaries_dir> <output_file>
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# Packs all files in <binaries_dir> into a newc-format CPIO archive.
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set -e
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BIN_DIR="$1"
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OUTPUT="$2"
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# Ensure output directory exists
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mkdir -p "$(dirname "$OUTPUT")"
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cd "$BIN_DIR"
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# Only pack actual binary files (no .o, .elf intermediates)
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find . -maxdepth 1 -type f ! -name '*.o' ! -name '*.elf' | cpio -o -H newc > "$OUTPUT" 2>/dev/null
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echo "Generated initrd: $(wc -c < "$OUTPUT") bytes"
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