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openwrt-xburst/package/compcache/patches/000-provide_lzo_kmod.patch
florian b3c2645b97 [package] update compcache to 0.5.4 (#6018) 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18512 3c298f89-4303-0410-b956-a3cf2f4a3e73
2009-11-23 22:30:42 +00:00

663 lines
16 KiB
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diff -uNr compcache-0.5.4-old/Makefile compcache-0.5.4/Makefile
--- compcache-0.5.4-old/Makefile 2009-10-17 08:49:42.000000000 +0200
+++ compcache-0.5.4/Makefile 2009-10-17 09:39:34.000000000 +0200
@@ -1,19 +1,26 @@
KERNEL_BUILD_PATH ?= "/lib/modules/$(shell uname -r)/build"
XVM = sub-projects/allocators/xvmalloc-kmod
-EXTRA_CFLAGS := -DCONFIG_BLK_DEV_RAMZSWAP_STATS \
- -I$(PWD)/$(XVM) \
+LZO = sub-projects/compression/lzo-kmod
+
+EXTRA_CFLAGS += -DCONFIG_BLK_DEV_RAMZSWAP_STATS \
+ -I$(PWD)/$(XVM) \
+ -I$(PWD)/$(LZO) \
-g -Wall
obj-m += $(XVM)/xvmalloc.o \
+ $(LZO)/lzo1x.o \
ramzswap.o
all:
make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(XVM) modules
+ make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(LZO) modules
make -C $(KERNEL_BUILD_PATH) M=$(PWD) modules
@ln -sf $(XVM)/xvmalloc.ko
+ @ln -sf $(LZO)/xvmalloc.ko
clean:
make -C $(KERNEL_BUILD_PATH) M=$(PWD) clean
make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(XVM) clean
+ make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(LZO) clean
@rm -rf *.ko
diff -uNr compcache-0.5.4-old/ramzswap.c compcache-0.5.4/ramzswap.c
--- compcache-0.5.4-old/ramzswap.c 2009-10-17 08:50:06.000000000 +0200
+++ compcache-0.5.4/ramzswap.c 2009-10-17 09:35:59.000000000 +0200
@@ -20,7 +20,6 @@
#include <linux/device.h>
#include <linux/genhd.h>
#include <linux/highmem.h>
-#include <linux/lzo.h>
#include <linux/mutex.h>
#include <linux/proc_fs.h>
#include <linux/string.h>
diff -uNr compcache-0.5.4-old/ramzswap.h compcache-0.5.4/ramzswap.h
--- compcache-0.5.4-old/ramzswap.h 2009-10-17 08:50:06.000000000 +0200
+++ compcache-0.5.4/ramzswap.h 2009-10-17 09:40:45.000000000 +0200
@@ -16,6 +16,7 @@
#define _RAMZSWAP_H_
#include "xvmalloc.h"
+#include "lzo.h"
/*
* Stored at beginning of each compressed object.
diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x.c compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x.c
--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x.c 1970-01-01 01:00:00.000000000 +0100
+++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x.c 2009-10-17 09:35:59.000000000 +0200
@@ -0,0 +1,7 @@
+#include <linux/module.h>
+
+#include "lzo1x_compress.c"
+#include "lzo1x_decompress.c"
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("LZO1X Lib");
diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x_compress.c compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x_compress.c
--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x_compress.c 1970-01-01 01:00:00.000000000 +0100
+++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x_compress.c 2009-10-17 09:35:59.000000000 +0200
@@ -0,0 +1,227 @@
+/*
+ * LZO1X Compressor from MiniLZO
+ *
+ * Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com>
+ *
+ * The full LZO package can be found at:
+ * http://www.oberhumer.com/opensource/lzo/
+ *
+ * Changed for kernel use by:
+ * Nitin Gupta <nitingupta910@gmail.com>
+ * Richard Purdie <rpurdie@openedhand.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <asm/unaligned.h>
+
+#include "lzodefs.h"
+#include "lzo.h"
+
+static noinline size_t
+_lzo1x_1_do_compress(const unsigned char *in, size_t in_len,
+ unsigned char *out, size_t *out_len, void *wrkmem)
+{
+ const unsigned char * const in_end = in + in_len;
+ const unsigned char * const ip_end = in + in_len - M2_MAX_LEN - 5;
+ const unsigned char ** const dict = wrkmem;
+ const unsigned char *ip = in, *ii = ip;
+ const unsigned char *end, *m, *m_pos;
+ size_t m_off, m_len, dindex;
+ unsigned char *op = out;
+
+ ip += 4;
+
+ for (;;) {
+ dindex = ((size_t)(0x21 * DX3(ip, 5, 5, 6)) >> 5) & D_MASK;
+ m_pos = dict[dindex];
+
+ if (m_pos < in)
+ goto literal;
+
+ if (ip == m_pos || ((size_t)(ip - m_pos) > M4_MAX_OFFSET))
+ goto literal;
+
+ m_off = ip - m_pos;
+ if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
+ goto try_match;
+
+ dindex = (dindex & (D_MASK & 0x7ff)) ^ (D_HIGH | 0x1f);
+ m_pos = dict[dindex];
+
+ if (m_pos < in)
+ goto literal;
+
+ if (ip == m_pos || ((size_t)(ip - m_pos) > M4_MAX_OFFSET))
+ goto literal;
+
+ m_off = ip - m_pos;
+ if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
+ goto try_match;
+
+ goto literal;
+
+try_match:
+ if (get_unaligned((const unsigned short *)m_pos)
+ == get_unaligned((const unsigned short *)ip)) {
+ if (likely(m_pos[2] == ip[2]))
+ goto match;
+ }
+
+literal:
+ dict[dindex] = ip;
+ ++ip;
+ if (unlikely(ip >= ip_end))
+ break;
+ continue;
+
+match:
+ dict[dindex] = ip;
+ if (ip != ii) {
+ size_t t = ip - ii;
+
+ if (t <= 3) {
+ op[-2] |= t;
+ } else if (t <= 18) {
+ *op++ = (t - 3);
+ } else {
+ size_t tt = t - 18;
+
+ *op++ = 0;
+ while (tt > 255) {
+ tt -= 255;
+ *op++ = 0;
+ }
+ *op++ = tt;
+ }
+ do {
+ *op++ = *ii++;
+ } while (--t > 0);
+ }
+
+ ip += 3;
+ if (m_pos[3] != *ip++ || m_pos[4] != *ip++
+ || m_pos[5] != *ip++ || m_pos[6] != *ip++
+ || m_pos[7] != *ip++ || m_pos[8] != *ip++) {
+ --ip;
+ m_len = ip - ii;
+
+ if (m_off <= M2_MAX_OFFSET) {
+ m_off -= 1;
+ *op++ = (((m_len - 1) << 5)
+ | ((m_off & 7) << 2));
+ *op++ = (m_off >> 3);
+ } else if (m_off <= M3_MAX_OFFSET) {
+ m_off -= 1;
+ *op++ = (M3_MARKER | (m_len - 2));
+ goto m3_m4_offset;
+ } else {
+ m_off -= 0x4000;
+
+ *op++ = (M4_MARKER | ((m_off & 0x4000) >> 11)
+ | (m_len - 2));
+ goto m3_m4_offset;
+ }
+ } else {
+ end = in_end;
+ m = m_pos + M2_MAX_LEN + 1;
+
+ while (ip < end && *m == *ip) {
+ m++;
+ ip++;
+ }
+ m_len = ip - ii;
+
+ if (m_off <= M3_MAX_OFFSET) {
+ m_off -= 1;
+ if (m_len <= 33) {
+ *op++ = (M3_MARKER | (m_len - 2));
+ } else {
+ m_len -= 33;
+ *op++ = M3_MARKER | 0;
+ goto m3_m4_len;
+ }
+ } else {
+ m_off -= 0x4000;
+ if (m_len <= M4_MAX_LEN) {
+ *op++ = (M4_MARKER
+ | ((m_off & 0x4000) >> 11)
+ | (m_len - 2));
+ } else {
+ m_len -= M4_MAX_LEN;
+ *op++ = (M4_MARKER
+ | ((m_off & 0x4000) >> 11));
+m3_m4_len:
+ while (m_len > 255) {
+ m_len -= 255;
+ *op++ = 0;
+ }
+
+ *op++ = (m_len);
+ }
+ }
+m3_m4_offset:
+ *op++ = ((m_off & 63) << 2);
+ *op++ = (m_off >> 6);
+ }
+
+ ii = ip;
+ if (unlikely(ip >= ip_end))
+ break;
+ }
+
+ *out_len = op - out;
+ return in_end - ii;
+}
+
+int lzo1x_1_compress(const unsigned char *in, size_t in_len, unsigned char *out,
+ size_t *out_len, void *wrkmem)
+{
+ const unsigned char *ii;
+ unsigned char *op = out;
+ size_t t;
+
+ if (unlikely(in_len <= M2_MAX_LEN + 5)) {
+ t = in_len;
+ } else {
+ t = _lzo1x_1_do_compress(in, in_len, op, out_len, wrkmem);
+ op += *out_len;
+ }
+
+ if (t > 0) {
+ ii = in + in_len - t;
+
+ if (op == out && t <= 238) {
+ *op++ = (17 + t);
+ } else if (t <= 3) {
+ op[-2] |= t;
+ } else if (t <= 18) {
+ *op++ = (t - 3);
+ } else {
+ size_t tt = t - 18;
+
+ *op++ = 0;
+ while (tt > 255) {
+ tt -= 255;
+ *op++ = 0;
+ }
+
+ *op++ = tt;
+ }
+ do {
+ *op++ = *ii++;
+ } while (--t > 0);
+ }
+
+ *op++ = M4_MARKER | 1;
+ *op++ = 0;
+ *op++ = 0;
+
+ *out_len = op - out;
+ return LZO_E_OK;
+}
+EXPORT_SYMBOL_GPL(lzo1x_1_compress);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("LZO1X-1 Compressor");
+
diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x_decompress.c compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x_decompress.c
--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 1970-01-01 01:00:00.000000000 +0100
+++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 2009-10-17 09:35:59.000000000 +0200
@@ -0,0 +1,255 @@
+/*
+ * LZO1X Decompressor from MiniLZO
+ *
+ * Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com>
+ *
+ * The full LZO package can be found at:
+ * http://www.oberhumer.com/opensource/lzo/
+ *
+ * Changed for kernel use by:
+ * Nitin Gupta <nitingupta910@gmail.com>
+ * Richard Purdie <rpurdie@openedhand.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+
+#include "lzodefs.h"
+#include "lzo.h"
+
+#define HAVE_IP(x, ip_end, ip) ((size_t)(ip_end - ip) < (x))
+#define HAVE_OP(x, op_end, op) ((size_t)(op_end - op) < (x))
+#define HAVE_LB(m_pos, out, op) (m_pos < out || m_pos >= op)
+
+#define COPY4(dst, src) \
+ put_unaligned(get_unaligned((const u32 *)(src)), (u32 *)(dst))
+
+int lzo1x_decompress_safe(const unsigned char *in, size_t in_len,
+ unsigned char *out, size_t *out_len)
+{
+ const unsigned char * const ip_end = in + in_len;
+ unsigned char * const op_end = out + *out_len;
+ const unsigned char *ip = in, *m_pos;
+ unsigned char *op = out;
+ size_t t;
+
+ *out_len = 0;
+
+ if (*ip > 17) {
+ t = *ip++ - 17;
+ if (t < 4)
+ goto match_next;
+ if (HAVE_OP(t, op_end, op))
+ goto output_overrun;
+ if (HAVE_IP(t + 1, ip_end, ip))
+ goto input_overrun;
+ do {
+ *op++ = *ip++;
+ } while (--t > 0);
+ goto first_literal_run;
+ }
+
+ while ((ip < ip_end)) {
+ t = *ip++;
+ if (t >= 16)
+ goto match;
+ if (t == 0) {
+ if (HAVE_IP(1, ip_end, ip))
+ goto input_overrun;
+ while (*ip == 0) {
+ t += 255;
+ ip++;
+ if (HAVE_IP(1, ip_end, ip))
+ goto input_overrun;
+ }
+ t += 15 + *ip++;
+ }
+ if (HAVE_OP(t + 3, op_end, op))
+ goto output_overrun;
+ if (HAVE_IP(t + 4, ip_end, ip))
+ goto input_overrun;
+
+ COPY4(op, ip);
+ op += 4;
+ ip += 4;
+ if (--t > 0) {
+ if (t >= 4) {
+ do {
+ COPY4(op, ip);
+ op += 4;
+ ip += 4;
+ t -= 4;
+ } while (t >= 4);
+ if (t > 0) {
+ do {
+ *op++ = *ip++;
+ } while (--t > 0);
+ }
+ } else {
+ do {
+ *op++ = *ip++;
+ } while (--t > 0);
+ }
+ }
+
+first_literal_run:
+ t = *ip++;
+ if (t >= 16)
+ goto match;
+ m_pos = op - (1 + M2_MAX_OFFSET);
+ m_pos -= t >> 2;
+ m_pos -= *ip++ << 2;
+
+ if (HAVE_LB(m_pos, out, op))
+ goto lookbehind_overrun;
+
+ if (HAVE_OP(3, op_end, op))
+ goto output_overrun;
+ *op++ = *m_pos++;
+ *op++ = *m_pos++;
+ *op++ = *m_pos;
+
+ goto match_done;
+
+ do {
+match:
+ if (t >= 64) {
+ m_pos = op - 1;
+ m_pos -= (t >> 2) & 7;
+ m_pos -= *ip++ << 3;
+ t = (t >> 5) - 1;
+ if (HAVE_LB(m_pos, out, op))
+ goto lookbehind_overrun;
+ if (HAVE_OP(t + 3 - 1, op_end, op))
+ goto output_overrun;
+ goto copy_match;
+ } else if (t >= 32) {
+ t &= 31;
+ if (t == 0) {
+ if (HAVE_IP(1, ip_end, ip))
+ goto input_overrun;
+ while (*ip == 0) {
+ t += 255;
+ ip++;
+ if (HAVE_IP(1, ip_end, ip))
+ goto input_overrun;
+ }
+ t += 31 + *ip++;
+ }
+ m_pos = op - 1;
+ m_pos -= le16_to_cpu(get_unaligned(
+ (const unsigned short *)ip)) >> 2;
+ ip += 2;
+ } else if (t >= 16) {
+ m_pos = op;
+ m_pos -= (t & 8) << 11;
+
+ t &= 7;
+ if (t == 0) {
+ if (HAVE_IP(1, ip_end, ip))
+ goto input_overrun;
+ while (*ip == 0) {
+ t += 255;
+ ip++;
+ if (HAVE_IP(1, ip_end, ip))
+ goto input_overrun;
+ }
+ t += 7 + *ip++;
+ }
+ m_pos -= le16_to_cpu(get_unaligned(
+ (const unsigned short *)ip)) >> 2;
+ ip += 2;
+ if (m_pos == op)
+ goto eof_found;
+ m_pos -= 0x4000;
+ } else {
+ m_pos = op - 1;
+ m_pos -= t >> 2;
+ m_pos -= *ip++ << 2;
+
+ if (HAVE_LB(m_pos, out, op))
+ goto lookbehind_overrun;
+ if (HAVE_OP(2, op_end, op))
+ goto output_overrun;
+
+ *op++ = *m_pos++;
+ *op++ = *m_pos;
+ goto match_done;
+ }
+
+ if (HAVE_LB(m_pos, out, op))
+ goto lookbehind_overrun;
+ if (HAVE_OP(t + 3 - 1, op_end, op))
+ goto output_overrun;
+
+ if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4) {
+ COPY4(op, m_pos);
+ op += 4;
+ m_pos += 4;
+ t -= 4 - (3 - 1);
+ do {
+ COPY4(op, m_pos);
+ op += 4;
+ m_pos += 4;
+ t -= 4;
+ } while (t >= 4);
+ if (t > 0)
+ do {
+ *op++ = *m_pos++;
+ } while (--t > 0);
+ } else {
+copy_match:
+ *op++ = *m_pos++;
+ *op++ = *m_pos++;
+ do {
+ *op++ = *m_pos++;
+ } while (--t > 0);
+ }
+match_done:
+ t = ip[-2] & 3;
+ if (t == 0)
+ break;
+match_next:
+ if (HAVE_OP(t, op_end, op))
+ goto output_overrun;
+ if (HAVE_IP(t + 1, ip_end, ip))
+ goto input_overrun;
+
+ *op++ = *ip++;
+ if (t > 1) {
+ *op++ = *ip++;
+ if (t > 2)
+ *op++ = *ip++;
+ }
+
+ t = *ip++;
+ } while (ip < ip_end);
+ }
+
+ *out_len = op - out;
+ return LZO_E_EOF_NOT_FOUND;
+
+eof_found:
+ *out_len = op - out;
+ return (ip == ip_end ? LZO_E_OK :
+ (ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
+input_overrun:
+ *out_len = op - out;
+ return LZO_E_INPUT_OVERRUN;
+
+output_overrun:
+ *out_len = op - out;
+ return LZO_E_OUTPUT_OVERRUN;
+
+lookbehind_overrun:
+ *out_len = op - out;
+ return LZO_E_LOOKBEHIND_OVERRUN;
+}
+
+EXPORT_SYMBOL_GPL(lzo1x_decompress_safe);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("LZO1X Decompressor");
+
diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzodefs.h compcache-0.5.4/sub-projects/compression/lzo-kmod/lzodefs.h
--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzodefs.h 1970-01-01 01:00:00.000000000 +0100
+++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzodefs.h 2009-10-17 09:35:59.000000000 +0200
@@ -0,0 +1,43 @@
+/*
+ * lzodefs.h -- architecture, OS and compiler specific defines
+ *
+ * Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com>
+ *
+ * The full LZO package can be found at:
+ * http://www.oberhumer.com/opensource/lzo/
+ *
+ * Changed for kernel use by:
+ * Nitin Gupta <nitingupta910@gmail.com>
+ * Richard Purdie <rpurdie@openedhand.com>
+ */
+
+#define LZO_VERSION 0x2020
+#define LZO_VERSION_STRING "2.02"
+#define LZO_VERSION_DATE "Oct 17 2005"
+
+#define M1_MAX_OFFSET 0x0400
+#define M2_MAX_OFFSET 0x0800
+#define M3_MAX_OFFSET 0x4000
+#define M4_MAX_OFFSET 0xbfff
+
+#define M1_MIN_LEN 2
+#define M1_MAX_LEN 2
+#define M2_MIN_LEN 3
+#define M2_MAX_LEN 8
+#define M3_MIN_LEN 3
+#define M3_MAX_LEN 33
+#define M4_MIN_LEN 3
+#define M4_MAX_LEN 9
+
+#define M1_MARKER 0
+#define M2_MARKER 64
+#define M3_MARKER 32
+#define M4_MARKER 16
+
+#define D_BITS 14
+#define D_MASK ((1u << D_BITS) - 1)
+#define D_HIGH ((D_MASK >> 1) + 1)
+
+#define DX2(p, s1, s2) (((((size_t)((p)[2]) << (s2)) ^ (p)[1]) \
+ << (s1)) ^ (p)[0])
+#define DX3(p, s1, s2, s3) ((DX2((p)+1, s2, s3) << (s1)) ^ (p)[0])
diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo.h compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo.h
--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo.h 1970-01-01 01:00:00.000000000 +0100
+++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo.h 2009-10-17 09:35:59.000000000 +0200
@@ -0,0 +1,44 @@
+#ifndef __LZO_H__
+#define __LZO_H__
+/*
+ * LZO Public Kernel Interface
+ * A mini subset of the LZO real-time data compression library
+ *
+ * Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com>
+ *
+ * The full LZO package can be found at:
+ * http://www.oberhumer.com/opensource/lzo/
+ *
+ * Changed for kernel use by:
+ * Nitin Gupta <nitingupta910@gmail.com>
+ * Richard Purdie <rpurdie@openedhand.com>
+ */
+
+#define LZO1X_MEM_COMPRESS (16384 * sizeof(unsigned char *))
+#define LZO1X_1_MEM_COMPRESS LZO1X_MEM_COMPRESS
+
+#define lzo1x_worst_compress(x) ((x) + ((x) / 16) + 64 + 3)
+
+/* This requires 'workmem' of size LZO1X_1_MEM_COMPRESS */
+int lzo1x_1_compress(const unsigned char *src, size_t src_len,
+ unsigned char *dst, size_t *dst_len, void *wrkmem);
+
+/* safe decompression with overrun testing */
+int lzo1x_decompress_safe(const unsigned char *src, size_t src_len,
+ unsigned char *dst, size_t *dst_len);
+
+/*
+ * Return values (< 0 = Error)
+ */
+#define LZO_E_OK 0
+#define LZO_E_ERROR (-1)
+#define LZO_E_OUT_OF_MEMORY (-2)
+#define LZO_E_NOT_COMPRESSIBLE (-3)
+#define LZO_E_INPUT_OVERRUN (-4)
+#define LZO_E_OUTPUT_OVERRUN (-5)
+#define LZO_E_LOOKBEHIND_OVERRUN (-6)
+#define LZO_E_EOF_NOT_FOUND (-7)
+#define LZO_E_INPUT_NOT_CONSUMED (-8)
+#define LZO_E_NOT_YET_IMPLEMENTED (-9)
+
+#endif
diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/Makefile compcache-0.5.4/sub-projects/compression/lzo-kmod/Makefile
--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ compcache-0.5.4/sub-projects/compression/lzo-kmod/Makefile 2009-10-17 09:35:59.000000000 +0200
@@ -0,0 +1,8 @@
+obj-m += lzo1x_compress.o lzo1x_decompress.o
+
+all:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+
+clean:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
+
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