1 // SPDX-License-Identifier: GPL-2.0-only
2 /* ----------------------------------------------------------------------- *
4 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 * H. Peter Anvin <hpa@linux.intel.com>
8 * -----------------------------------------------------------------------
10 * Outputs a small assembly wrapper with the appropriate symbols defined.
17 #include <tools/le_byteshift.h>
19 int main(int argc
, char *argv
[])
27 fprintf(stderr
, "Usage: %s compressed_file\n", argv
[0]);
31 /* Get the information for the compressed kernel image first */
33 f
= fopen(argv
[1], "r");
40 if (fseek(f
, -4L, SEEK_END
)) {
44 if (fread(&olen
, sizeof(olen
), 1, f
) != 1) {
50 olen
= get_unaligned_le32(&olen
);
52 printf(".section \".rodata..compressed\",\"a\",@progbits\n");
53 printf(".globl z_input_len\n");
54 printf("z_input_len = %lu\n", ilen
);
55 printf(".globl z_output_len\n");
56 printf("z_output_len = %lu\n", (unsigned long)olen
);
58 printf(".globl input_data, input_data_end\n");
59 printf("input_data:\n");
60 printf(".incbin \"%s\"\n", argv
[1]);
61 printf("input_data_end:\n");
63 printf(".section \".rodata\",\"a\",@progbits\n");
64 printf(".globl input_len\n");
65 printf("input_len:\n\t.long %lu\n", ilen
);
66 printf(".globl output_len\n");
67 printf("output_len:\n\t.long %lu\n", (unsigned long)olen
);