diff options
Diffstat (limited to 'include/boot/beoboot.h')
| -rw-r--r-- | include/boot/beoboot.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/boot/beoboot.h b/include/boot/beoboot.h new file mode 100644 index 0000000..d22fef1 --- /dev/null +++ b/include/boot/beoboot.h @@ -0,0 +1,39 @@ + +/*--- Boot image definitions ---------------------------------------*/ +struct beoboot_header { + char magic[4]; + uint8_t arch; + uint8_t flags; + uint16_t cmdline_size;/* length of command line (including null) */ + /* The alpha chunk is a backward compatibility hack. The original + * assumption was that integer sizes didn't matter because we + * would never mix architectures. x86_64 + i386 broke that + * assumption. It's fixed for that combination and the future. + * However, alpha needs a little hack now... */ +#ifdef __alpha__ + unsigned long kernel_size; + unsigned long initrd_size; +#else + uint32_t kernel_size; + uint32_t initrd_size; +#endif +}; +#define BEOBOOT_MAGIC "BeoB" +#define BEOBOOT_ARCH_I386 1 +#define BEOBOOT_ARCH_ALPHA 2 +#define BEOBOOT_ARCH_PPC 3 +#define BEOBOOT_ARCH_PPC64 4 +#if defined(__i386__) || defined(__x86_64__) +#define BEOBOOT_ARCH BEOBOOT_ARCH_I386 +#elif defined(__alpha__) +#define BEOBOOT_ARCH BEOBOOT_ARCH_ALPHA +#elif defined(powerpc) +#define BEOBOOT_ARCH BEOBOOT_ARCH_PPC +#elif defined(__powerpc64__) +#define BEOBOOT_ARCH BEOBOOT_ARCH_PPC64 +#else +#error Unsupported architecture. +#endif +#define BEOBOOT_INITRD_PRESENT 1 +/*------------------------------------------------------------------*/ + |