mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
126 lines
2.6 KiB
C
126 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2012
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* Lei Wen <leiwen@marvell.com>, Marvell Inc.
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <command.h>
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#include <image.h>
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#include <malloc.h>
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#include <memalign.h>
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#include <u-boot/zlib.h>
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#include "zlib/zutil.h"
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#ifndef CONFIG_GZIP_COMPRESS_DEF_SZ
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#define CONFIG_GZIP_COMPRESS_DEF_SZ 0x200
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#endif
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#define ZALLOC_ALIGNMENT 16
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static void *zalloc(void *x, unsigned items, unsigned size)
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{
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void *p;
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size *= items;
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size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
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p = malloc_cache_aligned(size);
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return (p);
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}
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static void zfree(void *x, void *addr, unsigned nb)
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{
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free (addr);
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}
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int gzip(void *dst, unsigned long *lenp,
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unsigned char *src, unsigned long srclen)
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{
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return zzip(dst, lenp, src, srclen, 1, NULL);
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}
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/*
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* Compress blocks with zlib
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*/
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int zzip(void *dst, unsigned long *lenp, unsigned char *src,
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unsigned long srclen, int stoponerr,
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int (*func)(unsigned long, unsigned long))
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{
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z_stream s;
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int r, flush, orig, window;
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unsigned long comp_len, left_len;
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if (!srclen)
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return 0;
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#ifndef CONFIG_GZIP
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window = MAX_WBITS;
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#else
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window = 2 * MAX_WBITS;
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#endif
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orig = *lenp;
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s.zalloc = zalloc;
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s.zfree = zfree;
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s.opaque = Z_NULL;
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r = deflateInit2_(&s, Z_BEST_SPEED, Z_DEFLATED, window,
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DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
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ZLIB_VERSION, sizeof(z_stream));
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if (r != Z_OK) {
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printf ("Error: deflateInit2_() returned %d\n", r);
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return -1;
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}
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while (srclen > 0) {
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comp_len = (srclen > CONFIG_GZIP_COMPRESS_DEF_SZ) ?
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CONFIG_GZIP_COMPRESS_DEF_SZ : srclen;
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s.next_in = src;
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s.avail_in = comp_len;
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flush = (srclen > CONFIG_GZIP_COMPRESS_DEF_SZ)?
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Z_NO_FLUSH : Z_FINISH;
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do {
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left_len = (*lenp > CONFIG_GZIP_COMPRESS_DEF_SZ) ?
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CONFIG_GZIP_COMPRESS_DEF_SZ : *lenp;
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s.next_out = dst;
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s.avail_out = left_len;
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r = deflate(&s, flush);
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if (r == Z_STREAM_ERROR && stoponerr == 1) {
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printf("Error: deflate() returned %d\n", r);
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r = -1;
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goto bail;
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}
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if (!func) {
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dst += (left_len - s.avail_out);
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*lenp -= (left_len - s.avail_out);
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} else if (left_len - s.avail_out > 0) {
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r = func((unsigned long)dst,
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left_len - s.avail_out);
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if (r < 0)
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goto bail;
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}
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} while (s.avail_out == 0 && (*lenp > 0));
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if (s.avail_in) {
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printf("Deflate failed to consume %u bytes", s.avail_in);
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r = -1;
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goto bail;
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}
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if (*lenp == 0) {
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printf("Deflate need more space to compress "
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"left %lu bytes\n", srclen);
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r = -1;
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goto bail;
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}
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srclen -= comp_len;
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src += comp_len;
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}
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r = 0;
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bail:
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deflateEnd(&s);
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*lenp = orig - *lenp;
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return r;
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}
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