Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | { |
Sam Ravnborg | 62070fa | 2006-03-03 16:46:04 +0100 | [diff] [blame] | 9 | unsigned char ei[EI_NIDENT]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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: |
Sam Ravnborg | 6803dc0 | 2006-06-24 23:46:54 +0200 | [diff] [blame^] | 31 | exit(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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: |
Sam Ravnborg | 6803dc0 | 2006-06-24 23:46:54 +0200 | [diff] [blame^] | 41 | exit(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Sam Ravnborg | 6803dc0 | 2006-06-24 23:46:54 +0200 | [diff] [blame^] | 56 | exit(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
| 58 | if ((strcmp(argv[1], "v850") == 0) || (strcmp(argv[1], "h8300") == 0)) |
| 59 | printf("#define MODULE_SYMBOL_PREFIX \"_\"\n"); |
Sam Ravnborg | 62070fa | 2006-03-03 16:46:04 +0100 | [diff] [blame] | 60 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | printf("#define MODULE_SYMBOL_PREFIX \"\"\n"); |
| 62 | |
| 63 | return 0; |
| 64 | } |
| 65 | |