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-rw-r--r--package/compcache/patches/000-provide_lzo_kmod.patch647
1 files changed, 647 insertions, 0 deletions
diff --git a/package/compcache/patches/000-provide_lzo_kmod.patch b/package/compcache/patches/000-provide_lzo_kmod.patch
new file mode 100644
index 000000000..1dab08507
--- /dev/null
+++ b/package/compcache/patches/000-provide_lzo_kmod.patch
@@ -0,0 +1,647 @@
+--- a/Makefile
++++ b/Makefile
+@@ -1,14 +1,17 @@
+ KERNEL_BUILD_PATH ?= "/lib/modules/$(shell uname -r)/build"
+
+ XVM = sub-projects/allocators/xvmalloc-kmod
++LZO = sub-projects/compression/lzo-kmod
+ EXTRA_CFLAGS := -DCONFIG_RAMZSWAP_STATS \
+ -Wall
+
+-obj-m += ramzswap.o
++obj-m += ramzswap.o $(LZO)/lzo1x.o
+ ramzswap-objs := ramzswap_drv.o $(XVM)/xvmalloc.o
++
+
+ all:
+ make -C $(KERNEL_BUILD_PATH) M=$(PWD) modules
++ make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(LZO) modules
+ make -C sub-projects/rzscontrol
+
+ doc:
+@@ -16,5 +19,6 @@ doc:
+
+ clean:
+ make -C $(KERNEL_BUILD_PATH) M=$(PWD) clean
++ make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(LZO) clean
+ make -C sub-projects/rzscontrol clean
+ @rm -rf *.ko
+--- a/ramzswap_drv.c
++++ b/ramzswap_drv.c
+@@ -23,13 +23,13 @@
+ #include <linux/device.h>
+ #include <linux/genhd.h>
+ #include <linux/highmem.h>
+-#include <linux/lzo.h>
+ #include <linux/string.h>
+ #include <linux/swap.h>
+ #include <linux/swapops.h>
+ #include <linux/vmalloc.h>
+ #include <linux/version.h>
+
++#include "lzo.h"
+ #include "compat.h"
+ #include "ramzswap_drv.h"
+
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzo1x.c
+@@ -0,0 +1,7 @@
++#include <linux/module.h>
++
++#include "lzo1x_compress.c"
++#include "lzo1x_decompress.c"
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("LZO1X Lib");
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzo1x_compress.c
+@@ -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");
++
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzo1x_decompress.c
+@@ -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");
++
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzodefs.h
+@@ -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])
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzo.h
+@@ -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
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/Makefile
+@@ -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
++
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-06 05:53:28 +0000