| 1 | |
| 2 | #include <stdio.h>
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| 3 | #include <stdlib.h>
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| 4 | #include <string.h>
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| 5 | #include <elf.h>
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| 6 |
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| 7 | int
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| 8 | main(int argc, char **argv)
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| 9 | {
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| 10 | unsigned char ei[EI_NIDENT];
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| 11 |
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| 12 | if (fread(ei, 1, EI_NIDENT, stdin) != EI_NIDENT) {
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| 13 | fprintf(stderr, "Error: input truncated\n");
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| 14 | return 1;
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| 15 | }
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| 16 | if (memcmp(ei, ELFMAG, SELFMAG) != 0) {
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| 17 | fprintf(stderr, "Error: not ELF\n");
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| 18 | return 1;
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| 19 | }
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| 20 | switch (ei[EI_CLASS]) {
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| 21 | case ELFCLASS32:
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| 22 | printf("#define KERNEL_ELFCLASS ELFCLASS32\n");
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| 23 | break;
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| 24 | case ELFCLASS64:
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| 25 | printf("#define KERNEL_ELFCLASS ELFCLASS64\n");
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| 26 | break;
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| 27 | default:
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| 28 | exit(1);
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| 29 | }
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| 30 |
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| 31 | return 0;
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| 32 | }
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