Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/* ----------------------------------------------------------------------- *
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*
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* Copyright (C) 2009 Intel Corporation. All rights reserved.
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*
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* H. Peter Anvin <hpa@linux.intel.com>
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*
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* -----------------------------------------------------------------------
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*
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* Outputs a small assembly wrapper with the appropriate symbols defined.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include <tools/le_byteshift.h>
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int main(int argc, char *argv[])
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{
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uint32_t olen;
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long ilen;
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FILE *f = NULL;
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int retval = 1;
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if (argc < 2) {
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fprintf(stderr, "Usage: %s compressed_file\n", argv[0]);
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goto bail;
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}
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/* Get the information for the compressed kernel image first */
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f = fopen(argv[1], "r");
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if (!f) {
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perror(argv[1]);
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goto bail;
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}
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if (fseek(f, -4L, SEEK_END)) {
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perror(argv[1]);
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}
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if (fread(&olen, sizeof(olen), 1, f) != 1) {
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perror(argv[1]);
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goto bail;
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}
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ilen = ftell(f);
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olen = get_unaligned_le32(&olen);
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printf(".section \".rodata..compressed\",\"a\",@progbits\n");
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printf(".globl z_input_len\n");
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printf("z_input_len = %lu\n", ilen);
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printf(".globl z_output_len\n");
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printf("z_output_len = %lu\n", (unsigned long)olen);
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printf(".globl input_data, input_data_end\n");
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printf("input_data:\n");
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printf(".incbin \"%s\"\n", argv[1]);
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printf("input_data_end:\n");
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printf(".section \".rodata\",\"a\",@progbits\n");
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printf(".globl input_len\n");
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printf("input_len:\n\t.long %lu\n", ilen);
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printf(".globl output_len\n");
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printf("output_len:\n\t.long %lu\n", (unsigned long)olen);
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retval = 0;
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bail:
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if (f)
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fclose(f);
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return retval;
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}
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