| // SPDX-License-Identifier: GPL-2.0 |
| main(int argc, char **argv) |
| unsigned char ei[EI_NIDENT]; |
| union { short s; char c[2]; } endian_test; |
| if (fread(ei, 1, EI_NIDENT, stdin) != EI_NIDENT) { |
| fprintf(stderr, "Error: input truncated\n"); |
| if (memcmp(ei, ELFMAG, SELFMAG) != 0) { |
| fprintf(stderr, "Error: not ELF\n"); |
| printf("#define KERNEL_ELFCLASS ELFCLASS32\n"); |
| printf("#define KERNEL_ELFCLASS ELFCLASS64\n"); |
| printf("#define KERNEL_ELFDATA ELFDATA2LSB\n"); |
| printf("#define KERNEL_ELFDATA ELFDATA2MSB\n"); |
| if (sizeof(unsigned long) == 4) { |
| printf("#define HOST_ELFCLASS ELFCLASS32\n"); |
| } else if (sizeof(unsigned long) == 8) { |
| printf("#define HOST_ELFCLASS ELFCLASS64\n"); |
| if (memcmp(endian_test.c, "\x01\x02", 2) == 0) |
| printf("#define HOST_ELFDATA ELFDATA2MSB\n"); |
| else if (memcmp(endian_test.c, "\x02\x01", 2) == 0) |
| printf("#define HOST_ELFDATA ELFDATA2LSB\n"); |