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https://github.com/smaeul/u-boot.git
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7a32b98dac
Add a new config CONFIG_GZIP_ENABLED, if enabled, the uboot bin would include zlib's deflate method which could be used for compressing. Signed-off-by: Lei Wen <leiwen@marvell.com>
127 lines
3.3 KiB
C
127 lines
3.3 KiB
C
/* zutil.h -- internal interface and configuration of the compression library
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* Copyright (C) 1995-2005 Jean-loup Gailly.
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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/* WARNING: this file should *not* be used by applications. It is
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part of the implementation of the compression library and is
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subject to change. Applications should only use zlib.h.
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*/
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/* @(#) $Id$ */
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#ifndef ZUTIL_H
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#define ZUTIL_H
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#define ZLIB_INTERNAL
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#include "zlib.h"
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#ifdef STDC
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# ifndef _WIN32_WCE
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# include <stddef.h>
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# endif
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# include <string.h>
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# include <stdlib.h>
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#endif
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#ifdef NO_ERRNO_H
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# ifdef _WIN32_WCE
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/* The Microsoft C Run-Time Library for Windows CE doesn't have
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* errno. We define it as a global variable to simplify porting.
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* Its value is always 0 and should not be used. We rename it to
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* avoid conflict with other libraries that use the same workaround.
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*/
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# define errno z_errno
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# endif
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extern int errno;
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#else
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# ifndef _WIN32_WCE
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# include <errno.h>
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# endif
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#endif
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#ifndef local
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# define local static
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#endif
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/* compile with -Dlocal if your debugger can't find static symbols */
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typedef unsigned char uch;
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typedef uch FAR uchf;
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typedef unsigned short ush;
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typedef ush FAR ushf;
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typedef unsigned long ulg;
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extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
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/* (size given to avoid silly warnings with Visual C++) */
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#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
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#define ERR_RETURN(strm,err) \
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return (strm->msg = (char*)ERR_MSG(err), (err))
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/* To be used only when the state is known to be valid */
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/* common constants */
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#ifndef DEF_WBITS
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# define DEF_WBITS MAX_WBITS
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#endif
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/* default windowBits for decompression. MAX_WBITS is for compression only */
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#if MAX_MEM_LEVEL >= 8
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# define DEF_MEM_LEVEL 8
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#else
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# define DEF_MEM_LEVEL MAX_MEM_LEVEL
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#endif
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/* default memLevel */
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#define STORED_BLOCK 0
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#define STATIC_TREES 1
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#define DYN_TREES 2
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/* The three kinds of block type */
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#define MIN_MATCH 3
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#define MAX_MATCH 258
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/* The minimum and maximum match lengths */
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/* functions */
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#ifdef CONFIG_GZIP_COMPRESSED
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#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
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# define OS_CODE 0x03 /* assume Unix */
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#endif
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#include <linux/string.h>
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#define zmemcpy memcpy
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#define zmemcmp memcmp
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#define zmemzero(dest, len) memset(dest, 0, len)
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/* Diagnostic functions */
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#ifdef DEBUG
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/* Not valid for U-boot
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# include <stdio.h> */
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extern int z_verbose;
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extern void z_error OF((char *m));
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# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
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# define Trace(x) {if (z_verbose>=0) fprintf x ;}
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# define Tracev(x) {if (z_verbose>0) fprintf x ;}
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# define Tracevv(x) {if (z_verbose>1) fprintf x ;}
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# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
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# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
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#else
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# define Assert(cond,msg)
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# define Trace(x)
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# define Tracev(x)
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# define Tracevv(x)
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# define Tracec(c,x)
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# define Tracecv(c,x)
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#endif
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voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
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void zcfree OF((voidpf opaque, voidpf ptr, unsigned size));
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#define ZALLOC(strm, items, size) \
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(*((strm)->zalloc))((strm)->opaque, (items), (size))
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#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr), 0)
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#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
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#endif /* ZUTIL_H */
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