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");
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