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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233// SPDX-License-Identifier: GPL-2.0#include <stdio.h>#include <stdlib.h>#include <string.h>#include <elf.h>
intmain(int argc, char **argv){ unsigned char ei[EI_NIDENT];
if (fread(ei, 1, EI_NIDENT, stdin) != EI_NIDENT) { fprintf(stderr, "Error: input truncated\n"); return 1; } if (memcmp(ei, ELFMAG, SELFMAG) != 0) { fprintf(stderr, "Error: not ELF\n"); return 1; } switch (ei[EI_CLASS]) { case ELFCLASS32: printf("#define KERNEL_ELFCLASS ELFCLASS32\n"); break; case ELFCLASS64: printf("#define KERNEL_ELFCLASS ELFCLASS64\n"); break; default: exit(1); }
return 0;}