7 main(int argc, char **argv)
9 unsigned char ei[EI_NIDENT];
10 union { short s; char c[2]; } endian_test;
12 if (fread(ei, 1, EI_NIDENT, stdin) != EI_NIDENT) {
13 fprintf(stderr, "Error: input truncated\n");
16 if (memcmp(ei, ELFMAG, SELFMAG) != 0) {
17 fprintf(stderr, "Error: not ELF\n");
20 switch (ei[EI_CLASS]) {
22 printf("#define KERNEL_ELFCLASS ELFCLASS32\n");
25 printf("#define KERNEL_ELFCLASS ELFCLASS64\n");
30 switch (ei[EI_DATA]) {
32 printf("#define KERNEL_ELFDATA ELFDATA2LSB\n");
35 printf("#define KERNEL_ELFDATA ELFDATA2MSB\n");
41 if (sizeof(unsigned long) == 4) {
42 printf("#define HOST_ELFCLASS ELFCLASS32\n");
43 } else if (sizeof(unsigned long) == 8) {
44 printf("#define HOST_ELFCLASS ELFCLASS64\n");
47 endian_test.s = 0x0102;
48 if (memcmp(endian_test.c, "\x01\x02", 2) == 0)
49 printf("#define HOST_ELFDATA ELFDATA2MSB\n");
50 else if (memcmp(endian_test.c, "\x02\x01", 2) == 0)
51 printf("#define HOST_ELFDATA ELFDATA2LSB\n");