svn commit: r354253 - in head: cddl/lib/libzpool stand/efi/boot1 stand/i386/gptzfsboot stand/i386/zfsboot stand/libsa stand/libsa/zfs sys/cddl/boot/zfs sys/cddl/contrib/opensolaris/common/lz4 sys/c...

Toomas Soome tsoome at FreeBSD.org
Sat Nov 2 12:28:07 UTC 2019


Author: tsoome
Date: Sat Nov  2 12:28:04 2019
New Revision: 354253
URL: https://svnweb.freebsd.org/changeset/base/354253

Log:
  Remove duplicate lz4 implementations
  
  Port illumos change: https://www.illumos.org/issues/11667
  
  Move lz4.c out of zfs tree to opensolaris/common/lz4, adjust it to be
  usable from kernel/stand/userland builds, so we can use just one single
  source. Add lz4.h to declare lz4_compress() and lz4_decompress().
  
  MFC after:	1 month
  Differential Revision:	https://reviews.freebsd.org/D22037

Added:
  head/sys/cddl/contrib/opensolaris/common/lz4/
  head/sys/cddl/contrib/opensolaris/common/lz4/lz4.c
     - copied, changed from r354252, head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lz4.c
  head/sys/cddl/contrib/opensolaris/common/lz4/lz4.h   (contents, props changed)
Deleted:
  head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lz4.c
Modified:
  head/cddl/lib/libzpool/Makefile
  head/stand/efi/boot1/Makefile
  head/stand/i386/gptzfsboot/Makefile
  head/stand/i386/zfsboot/Makefile
  head/stand/libsa/Makefile
  head/stand/libsa/zfs/Makefile.inc
  head/sys/cddl/boot/zfs/zfssubr.c
  head/sys/cddl/contrib/opensolaris/uts/common/Makefile.files
  head/sys/modules/zfs/Makefile

Modified: head/cddl/lib/libzpool/Makefile
==============================================================================
--- head/cddl/lib/libzpool/Makefile	Sat Nov  2 10:53:23 2019	(r354252)
+++ head/cddl/lib/libzpool/Makefile	Sat Nov  2 12:28:04 2019	(r354253)
@@ -8,6 +8,8 @@
 .PATH: ${SRCTOP}/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lua
 # ZFS_SHARED_SRCS
 .PATH: ${SRCTOP}/sys/cddl/contrib/opensolaris/common/zfs
+# LZ4_COMMON_SRCS
+.PATH: ${SRCTOP}/sys/cddl/contrib/opensolaris/common/lz4
 # KERNEL_SRCS
 .PATH: ${SRCTOP}/cddl/contrib/opensolaris/lib/libzpool/common
 # LIST_SRCS
@@ -32,6 +34,7 @@ LIB=		zpool
 
 ZFS_COMMON_SRCS= ${ZFS_COMMON_OBJS:C/.o$/.c/} trim_map.c
 ZFS_SHARED_SRCS= ${ZFS_SHARED_OBJS:C/.o$/.c/}
+LZ4_COMMON_SRCS= lz4.c
 LUA_SRCS=	${LUA_OBJS:C/.o$/.c/}
 KERNEL_SRCS=	kernel.c taskq.c util.c
 LIST_SRCS=	list.c
@@ -39,7 +42,7 @@ UNICODE_SRCS=	u8_textprep.c
 LIBCMDUTILS_SRCS=nicenum.c
 
 SRCS=		${ZFS_COMMON_SRCS} ${ZFS_SHARED_SRCS} ${LUA_SRCS} \
-		${KERNEL_SRCS} ${LIST_SRCS} ${ATOMIC_SRCS} \
+		${LZ4_COMMON_SRCS} ${KERNEL_SRCS} ${LIST_SRCS} ${ATOMIC_SRCS} \
 		${UNICODE_SRCS} ${LIBCMDUTILS_SRCS}
 
 WARNS?=		0
@@ -50,6 +53,7 @@ CFLAGS+=	-I${SRCTOP}/cddl/contrib/opensolaris/lib/libz
 CFLAGS+=	-I${SRCTOP}/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
 CFLAGS+=	-I${SRCTOP}/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lua
 CFLAGS+=	-I${SRCTOP}/sys/cddl/contrib/opensolaris/common/zfs
+CFLAGS+=	-I${SRCTOP}/sys/cddl/contrib/opensolaris/common/lz4
 CFLAGS+=	-I${SRCTOP}/sys/cddl/contrib/opensolaris/uts/common
 CFLAGS+=	-I${SRCTOP}/cddl/contrib/opensolaris/head
 CFLAGS+=	-I${SRCTOP}/cddl/contrib/opensolaris/lib/libnvpair

Modified: head/stand/efi/boot1/Makefile
==============================================================================
--- head/stand/efi/boot1/Makefile	Sat Nov  2 10:53:23 2019	(r354252)
+++ head/stand/efi/boot1/Makefile	Sat Nov  2 12:28:04 2019	(r354253)
@@ -37,6 +37,7 @@ CFLAGS.zfs_module.c+=	-I${ZFSSRC}
 CFLAGS.zfs_module.c+=	-I${SYSDIR}/cddl/boot/zfs
 CFLAGS.zfs_module.c+=	-I${SYSDIR}/crypto/skein
 CFLAGS.zfs_module.c+=	-I${SYSDIR}/cddl/contrib/opensolaris/uts/common
+CFLAGS.zfs_module.c+=	-I${SYSDIR}/cddl/contrib/opensolaris/common/lz4
 
 CFLAGS+=	-DEFI_ZFS_BOOT
 .endif

Modified: head/stand/i386/gptzfsboot/Makefile
==============================================================================
--- head/stand/i386/gptzfsboot/Makefile	Sat Nov  2 10:53:23 2019	(r354252)
+++ head/stand/i386/gptzfsboot/Makefile	Sat Nov  2 12:28:04 2019	(r354253)
@@ -29,6 +29,7 @@ CFLAGS+=-DBOOTPROG=\"gptzfsboot\" \
 	-I${SYSDIR}/crypto/skein \
 	-I${SYSDIR}/cddl/boot/zfs \
 	-I${SYSDIR}/cddl/contrib/opensolaris/uts/common \
+	-I${SYSDIR}/cddl/contrib/opensolaris/common/lz4 \
 	-I${BOOTSRC}/i386/btx/lib \
 	-I${BOOTSRC}/i386/boot2 \
 	-Wall -Waggregate-return -Wbad-function-cast \

Modified: head/stand/i386/zfsboot/Makefile
==============================================================================
--- head/stand/i386/zfsboot/Makefile	Sat Nov  2 10:53:23 2019	(r354252)
+++ head/stand/i386/zfsboot/Makefile	Sat Nov  2 12:28:04 2019	(r354253)
@@ -28,6 +28,7 @@ CFLAGS+=-DBOOTPROG=\"zfsboot\" \
 	-I${SYSDIR}/crypto/skein \
 	-I${SYSDIR}/cddl/boot/zfs \
 	-I${SYSDIR}/cddl/contrib/opensolaris/uts/common \
+	-I${SYSDIR}/cddl/contrib/opensolaris/common/lz4 \
 	-I${BOOTSRC}/i386/boot2 \
 	-Wall -Waggregate-return -Wbad-function-cast -Wno-cast-align \
 	-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \

Modified: head/stand/libsa/Makefile
==============================================================================
--- head/stand/libsa/Makefile	Sat Nov  2 10:53:23 2019	(r354252)
+++ head/stand/libsa/Makefile	Sat Nov  2 12:28:04 2019	(r354253)
@@ -102,6 +102,11 @@ CFLAGS+=-DHAVE_MEMCPY -I${SRCTOP}/sys/contrib/zlib
 SRCS+=	adler32.c crc32.c
 SRCS+=	infback.c inffast.c inflate.c inftrees.c zutil.c
 
+# lz4 decompression functionality
+.PATH: ${SRCTOP}/sys/cddl/contrib/opensolaris/common/lz4
+SRCS+=	lz4.c
+CFLAGS.lz4.c+= -I${SRCTOP}/sys/cddl/contrib/opensolaris/common/lz4
+
 # Create a subset of includes that are safe, as well as adjusting those that aren't
 # The lists may drive people nuts, but they are explicitly opt-in
 FAKE_DIRS=xlocale arpa

Modified: head/stand/libsa/zfs/Makefile.inc
==============================================================================
--- head/stand/libsa/zfs/Makefile.inc	Sat Nov  2 10:53:23 2019	(r354252)
+++ head/stand/libsa/zfs/Makefile.inc	Sat Nov  2 12:28:04 2019	(r354253)
@@ -12,4 +12,6 @@ CFLAGS+=	-I${SYSDIR}/cddl/boot/zfs
 CFLAGS+=	-I${SYSDIR}/cddl/contrib/opensolaris/uts/common
 CFLAGS+=	-I${SYSDIR}/crypto/skein
 
+CFLAGS.zfs.c+=	-I${SRCTOP}/sys/cddl/contrib/opensolaris/common/lz4
+
 CFLAGS+=	-Wformat -Wall

Modified: head/sys/cddl/boot/zfs/zfssubr.c
==============================================================================
--- head/sys/cddl/boot/zfs/zfssubr.c	Sat Nov  2 10:53:23 2019	(r354252)
+++ head/sys/cddl/boot/zfs/zfssubr.c	Sat Nov  2 12:28:04 2019	(r354253)
@@ -26,6 +26,8 @@
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
+#include <lz4.h>
+
 static uint64_t zfs_crc64_table[256];
 
 #define	ECKSUM	666
@@ -161,7 +163,6 @@ typedef struct zio_compress_info {
 
 #include "lzjb.c"
 #include "zle.c"
-#include "lz4.c"
 
 /*
  * Compression vectors.

Copied and modified: head/sys/cddl/contrib/opensolaris/common/lz4/lz4.c (from r354252, head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lz4.c)
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lz4.c	Sat Nov  2 10:53:23 2019	(r354252, copy source)
+++ head/sys/cddl/contrib/opensolaris/common/lz4/lz4.c	Sat Nov  2 12:28:04 2019	(r354253)
@@ -35,11 +35,29 @@
  * Copyright (c) 2016 by Delphix. All rights reserved.
  */
 
+#if defined(_KERNEL)
 #include <sys/zfs_context.h>
+#elif defined(_STANDALONE)
+#include <sys/cdefs.h>
+#include <stand.h>
+#include <sys/types.h>
+#include <sys/endian.h>
+#include <assert.h>
 
+#define	ASSERT	assert
+#else
+#include <string.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <assert.h>
+
+#define	ASSERT	assert
+#endif
+#include <lz4.h>
+
 static int real_LZ4_compress(const char *source, char *dest, int isize,
     int osize);
-static int LZ4_compressBound(int isize);
 static int LZ4_uncompress_unknownOutputSize(const char *source, char *dest,
     int isize, int maxOutputSize);
 static int LZ4_compressCtx(void *ctx, const char *source, char *dest,
@@ -47,11 +65,13 @@ static int LZ4_compressCtx(void *ctx, const char *sour
 static int LZ4_compress64kCtx(void *ctx, const char *source, char *dest,
     int isize, int osize);
 
+#if defined(_KERNEL)
 static kmem_cache_t *lz4_ctx_cache;
+#endif
 
-/*ARGSUSED*/
 size_t
-lz4_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
+lz4_compress(void *s_start, void *d_start, size_t s_len, size_t d_len,
+    int n __unused)
 {
 	uint32_t bufsiz;
 	char *dest = d_start;
@@ -71,17 +91,25 @@ lz4_compress(void *s_start, void *d_start, size_t s_le
 	 * added to the compressed buffer and which, if unhandled, would
 	 * confuse the hell out of our decompression function.
 	 */
-	*(uint32_t *)dest = BE_32(bufsiz);
+#if defined(_KERNEL)
+	*(uint32_t *)(void *)dest = BE_32(bufsiz);
+#else
+	*(uint32_t *)(void *)dest = htonl(bufsiz);
+#endif
 
 	return (bufsiz + sizeof (bufsiz));
 }
 
-/*ARGSUSED*/
 int
-lz4_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
+lz4_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len,
+    int n __unused)
 {
 	const char *src = s_start;
-	uint32_t bufsiz = BE_IN32(src);
+#if defined(_KERNEL)
+	uint32_t bufsiz = BE_IN32(s_start);
+#else
+	uint32_t bufsiz = htonl(*(uint32_t *)s_start);
+#endif
 
 	/* invalid compressed buffer size encoded at start */
 	if (bufsiz + sizeof (bufsiz) > s_len)
@@ -105,20 +133,10 @@ lz4_decompress(void *s_start, void *d_start, size_t s_
  *		 or 0 if the compression fails (if LZ4_COMPRESSMIN is set).
  * 	note : destination buffer must be already allocated.
  * 		destination buffer must be sized to handle worst cases
- * 		situations (input data not compressible) worst case size
- * 		evaluation is provided by function LZ4_compressBound().
+ * 		situations (input data not compressible).
  *
  * Advanced Functions
  *
- * LZ4_compressBound() :
- * 	Provides the maximum size that LZ4 may output in a "worst case"
- * 	scenario (input data not compressible) primarily useful for memory
- * 	allocation of output buffer.
- *
- * 	isize  : is the input size. Max supported value is ~1.9GB
- * 	return : maximum output size in a "worst case" scenario
- * 	note : this function is limited by "int" range (2^31-1)
- *
  * LZ4_uncompress_unknownOutputSize() :
  * 	isize  : is the input size, therefore the compressed size
  * 	maxOutputSize : is the size of the destination buffer (which must be
@@ -292,9 +310,9 @@ typedef struct _U64_S {
 #pragma pack()
 #endif
 
-#define	A64(x) (((U64_S *)(x))->v)
-#define	A32(x) (((U32_S *)(x))->v)
-#define	A16(x) (((U16_S *)(x))->v)
+#define	A64(x) (((U64_S *)(__DECONST(void *, x)))->v)
+#define	A32(x) (((U32_S *)(__DECONST(void *, x)))->v)
+#define	A16(x) (((U16_S *)(__DECONST(void *, x)))->v)
 
 /*
  * Constants
@@ -456,14 +474,6 @@ LZ4_NbCommonBytes(register U32 val)
 
 #endif
 
-/* Public functions */
-
-static int
-LZ4_compressBound(int isize)
-{
-	return (isize + (isize / 255) + 16);
-}
-
 /* Compression functions */
 
 /*ARGSUSED*/
@@ -478,7 +488,7 @@ LZ4_compressCtx(void *ctx, const char *source, char *d
 	HTYPE HashTable[HASHTABLESIZE] = { 0 };
 #endif
 
-	const BYTE *ip = (BYTE *) source;
+	const BYTE *ip = (const BYTE *) source;
 	INITBASE(base);
 	const BYTE *anchor = ip;
 	const BYTE *const iend = ip + isize;
@@ -527,7 +537,7 @@ LZ4_compressCtx(void *ctx, const char *source, char *d
 		} while ((ref < ip - MAX_DISTANCE) || (A32(ref) != A32(ip)));
 
 		/* Catch up */
-		while ((ip > anchor) && (ref > (BYTE *) source) &&
+		while ((ip > anchor) && (ref > (const BYTE *) source) &&
 		    unlikely(ip[-1] == ref[-1])) {
 			ip--;
 			ref--;
@@ -673,7 +683,7 @@ LZ4_compress64kCtx(void *ctx, const char *source, char
 	U16 HashTable[HASH64KTABLESIZE] = { 0 };
 #endif
 
-	const BYTE *ip = (BYTE *) source;
+	const BYTE *ip = (const BYTE *) source;
 	const BYTE *anchor = ip;
 	const BYTE *const base = ip;
 	const BYTE *const iend = ip + isize;
@@ -720,7 +730,7 @@ LZ4_compress64kCtx(void *ctx, const char *source, char
 		} while (A32(ref) != A32(ip));
 
 		/* Catch up */
-		while ((ip > anchor) && (ref > (BYTE *) source) &&
+		while ((ip > anchor) && (ref > (const BYTE *) source) &&
 		    (ip[-1] == ref[-1])) {
 			ip--;
 			ref--;
@@ -847,7 +857,11 @@ static int
 real_LZ4_compress(const char *source, char *dest, int isize, int osize)
 {
 #if HEAPMODE
+#if defined(_KERNEL)
 	void *ctx = kmem_cache_alloc(lz4_ctx_cache, KM_NOSLEEP);
+#else
+	void *ctx = malloc(sizeof(struct refTables));
+#endif
 	int result;
 
 	/*
@@ -863,7 +877,11 @@ real_LZ4_compress(const char *source, char *dest, int 
 	else
 		result = LZ4_compressCtx(ctx, source, dest, isize, osize);
 
+#if defined(_KERNEL)
 	kmem_cache_free(lz4_ctx_cache, ctx);
+#else
+	free(ctx);
+#endif
 	return (result);
 #else
 	if (isize < (int)LZ4_64KLIMIT)
@@ -876,7 +894,7 @@ real_LZ4_compress(const char *source, char *dest, int 
 
 /*
  * Note: The decoding function LZ4_uncompress_unknownOutputSize() is safe
- *	against "buffer overflow" attack type. They will never write nor
+ *	against "buffer overflow" attack type. It will never write nor
  *	read outside of the provided output buffers.
  *	LZ4_uncompress_unknownOutputSize() also insures that it will never
  *	read outside of the input buffer.  A corrupted input will produce
@@ -1010,9 +1028,10 @@ LZ4_uncompress_unknownOutputSize(const char *source, c
 
 	/* write overflow error detected */
 	_output_error:
-	return (int)(-(((char *)ip) - source));
+	return (int)(-(((const char *)ip) - source));
 }
 
+#if defined(_KERNEL)
 extern void
 lz4_init(void)
 {
@@ -1031,3 +1050,4 @@ lz4_fini(void)
 	kmem_cache_destroy(lz4_ctx_cache);
 #endif
 }
+#endif /* _KERNEL */

Added: head/sys/cddl/contrib/opensolaris/common/lz4/lz4.h
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/sys/cddl/contrib/opensolaris/common/lz4/lz4.h	Sat Nov  2 12:28:04 2019	(r354253)
@@ -0,0 +1,50 @@
+/*
+ * LZ4 - Fast LZ compression algorithm
+ * Header File
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You can contact the author at :
+ * - LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html
+ * - LZ4 source repository : http://code.google.com/p/lz4/
+ */
+
+#ifndef _LZ4_H
+#define	_LZ4_H
+
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern size_t lz4_compress(void *, void *, size_t, size_t, int);
+extern int lz4_decompress(void *, void *, size_t, size_t, int);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LZ4_H */

Modified: head/sys/cddl/contrib/opensolaris/uts/common/Makefile.files
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/Makefile.files	Sat Nov  2 10:53:23 2019	(r354252)
+++ head/sys/cddl/contrib/opensolaris/uts/common/Makefile.files	Sat Nov  2 12:28:04 2019	(r354253)
@@ -98,7 +98,6 @@ ZFS_COMMON_OBJS +=		\
 	dsl_scan.o		\
 	zfeature.o		\
 	gzip.o			\
-	lz4.o			\
 	lzjb.o			\
 	metaslab.o		\
 	multilist.o		\

Modified: head/sys/modules/zfs/Makefile
==============================================================================
--- head/sys/modules/zfs/Makefile	Sat Nov  2 10:53:23 2019	(r354252)
+++ head/sys/modules/zfs/Makefile	Sat Nov  2 12:28:04 2019	(r354253)
@@ -18,6 +18,8 @@ SRCS+=	opensolaris_nvpair_alloc_fixed.c
 SRCS+=	opensolaris_fnvpair.c
 .PATH:	${SYSDIR}/cddl/contrib/opensolaris/common/unicode
 SRCS+=	u8_textprep.c
+.PATH:	${SUNW}/common/lz4
+SRCS+=	lz4.c
 
 .PATH:	${SYSDIR}/cddl/compat/opensolaris/kern
 SRCS+=	opensolaris_acl.c
@@ -84,6 +86,7 @@ CFLAGS+=-I${SUNW}/uts/common/zmod
 CFLAGS+=-I${SUNW}/uts/common
 CFLAGS+=-I${SYSDIR}
 CFLAGS+=-I${SUNW}/common/zfs
+CFLAGS+=-I${SUNW}/common/lz4
 CFLAGS+=-I${SUNW}/common
 CFLAGS+=-DBUILDING_ZFS
 CFLAGS.gcc+=-fms-extensions


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