Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
3 | #include <string.h> | |
4 | #include <elf.h> | |
5 | ||
6 | int | |
7 | main(int argc, char **argv) | |
8 | { | |
62070fa4 | 9 | unsigned char ei[EI_NIDENT]; |
1da177e4 LT |
10 | union { short s; char c[2]; } endian_test; |
11 | ||
12 | if (argc != 2) { | |
13 | fprintf(stderr, "Error: no arch\n"); | |
14 | } | |
15 | if (fread(ei, 1, EI_NIDENT, stdin) != EI_NIDENT) { | |
16 | fprintf(stderr, "Error: input truncated\n"); | |
17 | return 1; | |
18 | } | |
19 | if (memcmp(ei, ELFMAG, SELFMAG) != 0) { | |
20 | fprintf(stderr, "Error: not ELF\n"); | |
21 | return 1; | |
22 | } | |
23 | switch (ei[EI_CLASS]) { | |
24 | case ELFCLASS32: | |
25 | printf("#define KERNEL_ELFCLASS ELFCLASS32\n"); | |
26 | break; | |
27 | case ELFCLASS64: | |
28 | printf("#define KERNEL_ELFCLASS ELFCLASS64\n"); | |
29 | break; | |
30 | default: | |
6803dc0e | 31 | exit(1); |
1da177e4 LT |
32 | } |
33 | switch (ei[EI_DATA]) { | |
34 | case ELFDATA2LSB: | |
35 | printf("#define KERNEL_ELFDATA ELFDATA2LSB\n"); | |
36 | break; | |
37 | case ELFDATA2MSB: | |
38 | printf("#define KERNEL_ELFDATA ELFDATA2MSB\n"); | |
39 | break; | |
40 | default: | |
6803dc0e | 41 | exit(1); |
1da177e4 LT |
42 | } |
43 | ||
44 | if (sizeof(unsigned long) == 4) { | |
45 | printf("#define HOST_ELFCLASS ELFCLASS32\n"); | |
46 | } else if (sizeof(unsigned long) == 8) { | |
47 | printf("#define HOST_ELFCLASS ELFCLASS64\n"); | |
48 | } | |
49 | ||
50 | endian_test.s = 0x0102; | |
51 | if (memcmp(endian_test.c, "\x01\x02", 2) == 0) | |
52 | printf("#define HOST_ELFDATA ELFDATA2MSB\n"); | |
53 | else if (memcmp(endian_test.c, "\x02\x01", 2) == 0) | |
54 | printf("#define HOST_ELFDATA ELFDATA2LSB\n"); | |
55 | else | |
6803dc0e | 56 | exit(1); |
1da177e4 | 57 | |
1394f032 BW |
58 | if ((strcmp(argv[1], "v850") == 0) || (strcmp(argv[1], "h8300") == 0) |
59 | || (strcmp(argv[1], "blackfin") == 0)) | |
1da177e4 | 60 | printf("#define MODULE_SYMBOL_PREFIX \"_\"\n"); |
62070fa4 | 61 | else |
1da177e4 LT |
62 | printf("#define MODULE_SYMBOL_PREFIX \"\"\n"); |
63 | ||
64 | return 0; | |
65 | } | |
66 |