1 | /* ----------------------------------------------------------------------- * |
2 | * |
3 | * Copyright (C) 2009 Intel Corporation. All rights reserved. |
4 | * |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License version |
7 | * 2 as published by the Free Software Foundation. |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the Free Software |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
17 | * 02110-1301, USA. |
18 | * |
19 | * H. Peter Anvin <hpa@linux.intel.com> |
20 | * |
21 | * ----------------------------------------------------------------------- |
22 | * |
23 | * Outputs a small assembly wrapper with the appropriate symbols defined. |
24 | * |
25 | */ |
26 | |
27 | #include <stdlib.h> |
28 | #include <stdio.h> |
29 | #include <string.h> |
30 | #include <inttypes.h> |
31 | #include <tools/le_byteshift.h> |
32 | |
33 | int main(int argc, char *argv[]) |
34 | { |
35 | uint32_t olen; |
36 | long ilen; |
37 | FILE *f = NULL; |
38 | int retval = 1; |
39 | |
40 | if (argc < 2) { |
41 | fprintf(stderr, "Usage: %s compressed_file\n" , argv[0]); |
42 | goto bail; |
43 | } |
44 | |
45 | /* Get the information for the compressed kernel image first */ |
46 | |
47 | f = fopen(argv[1], "r" ); |
48 | if (!f) { |
49 | perror(argv[1]); |
50 | goto bail; |
51 | } |
52 | |
53 | |
54 | if (fseek(f, -4L, SEEK_END)) { |
55 | perror(argv[1]); |
56 | } |
57 | |
58 | if (fread(&olen, sizeof(olen), 1, f) != 1) { |
59 | perror(argv[1]); |
60 | goto bail; |
61 | } |
62 | |
63 | ilen = ftell(f); |
64 | olen = get_unaligned_le32(&olen); |
65 | |
66 | printf(".section \".rodata..compressed\",\"a\",@progbits\n" ); |
67 | printf(".globl z_input_len\n" ); |
68 | printf("z_input_len = %lu\n" , ilen); |
69 | printf(".globl z_output_len\n" ); |
70 | printf("z_output_len = %lu\n" , (unsigned long)olen); |
71 | |
72 | printf(".globl input_data, input_data_end\n" ); |
73 | printf("input_data:\n" ); |
74 | printf(".incbin \"%s\"\n" , argv[1]); |
75 | printf("input_data_end:\n" ); |
76 | |
77 | retval = 0; |
78 | bail: |
79 | if (f) |
80 | fclose(f); |
81 | return retval; |
82 | } |
83 | |