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02a884c0 PA |
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 | * | |
d607251b YL |
21 | * ----------------------------------------------------------------------- |
22 | * | |
23 | * Outputs a small assembly wrapper with the appropriate symbols defined. | |
24 | * | |
02a884c0 PA |
25 | */ |
26 | ||
27 | #include <stdlib.h> | |
28 | #include <stdio.h> | |
29 | #include <string.h> | |
30 | #include <inttypes.h> | |
12871c56 | 31 | #include <tools/le_byteshift.h> |
02a884c0 PA |
32 | |
33 | int main(int argc, char *argv[]) | |
34 | { | |
35 | uint32_t olen; | |
36 | long ilen; | |
49449c30 GB |
37 | FILE *f = NULL; |
38 | int retval = 1; | |
02a884c0 | 39 | |
4d2d5424 YL |
40 | if (argc < 2) { |
41 | fprintf(stderr, "Usage: %s compressed_file\n", argv[0]); | |
49449c30 | 42 | goto bail; |
02a884c0 PA |
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]); | |
49449c30 | 50 | goto bail; |
02a884c0 PA |
51 | } |
52 | ||
53 | ||
54 | if (fseek(f, -4L, SEEK_END)) { | |
55 | perror(argv[1]); | |
56 | } | |
6670e9cd DB |
57 | |
58 | if (fread(&olen, sizeof(olen), 1, f) != 1) { | |
59 | perror(argv[1]); | |
49449c30 | 60 | goto bail; |
6670e9cd DB |
61 | } |
62 | ||
02a884c0 | 63 | ilen = ftell(f); |
12871c56 | 64 | olen = get_unaligned_le32(&olen); |
02a884c0 | 65 | |
041d5f94 | 66 | printf(".section \".rodata..compressed\",\"a\",@progbits\n"); |
02a884c0 PA |
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); | |
02a884c0 PA |
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 | ||
49449c30 GB |
77 | retval = 0; |
78 | bail: | |
79 | if (f) | |
80 | fclose(f); | |
81 | return retval; | |
02a884c0 | 82 | } |