mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 10:08:59 +00:00
186 lines
4.1 KiB
Diff
186 lines
4.1 KiB
Diff
diff -uNr compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_compress.c compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_compress.c
|
|
--- compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_compress.c 2008-08-13 06:33:34.000000000 +0200
|
|
+++ compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_compress.c 2009-01-21 08:00:35.000000000 +0100
|
|
@@ -62,8 +62,12 @@
|
|
goto literal;
|
|
|
|
try_match:
|
|
+#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
|
|
if (get_unaligned((const unsigned short *)m_pos)
|
|
== get_unaligned((const unsigned short *)ip)) {
|
|
+#else
|
|
+ if (m_pos[0] == ip[0] && m_pos[1] == ip[1]) {
|
|
+#endif
|
|
if (likely(m_pos[2] == ip[2]))
|
|
goto match;
|
|
}
|
|
@@ -94,9 +98,14 @@
|
|
}
|
|
*op++ = tt;
|
|
}
|
|
- do {
|
|
- *op++ = *ii++;
|
|
- } while (--t > 0);
|
|
+ if (t >= 2 * 4) {
|
|
+ memcpy(op, ii, t);
|
|
+ op += t;
|
|
+ ii += t;
|
|
+ } else
|
|
+ do {
|
|
+ *op++ = *ii++;
|
|
+ } while (--t > 0);
|
|
}
|
|
|
|
ip += 3;
|
|
@@ -208,9 +217,14 @@
|
|
|
|
*op++ = tt;
|
|
}
|
|
- do {
|
|
- *op++ = *ii++;
|
|
- } while (--t > 0);
|
|
+ if (t >= 2 * 4) {
|
|
+ memcpy(op, ii, t);
|
|
+ op += t;
|
|
+ ii += t;
|
|
+ } else
|
|
+ do {
|
|
+ *op++ = *ii++;
|
|
+ } while (--t > 0);
|
|
}
|
|
|
|
*op++ = M4_MARKER | 1;
|
|
@@ -224,4 +238,3 @@
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("LZO1X-1 Compressor");
|
|
-
|
|
diff -uNr compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c
|
|
--- compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 2008-08-13 06:33:42.000000000 +0200
|
|
+++ compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 2009-01-21 07:49:41.000000000 +0100
|
|
@@ -45,10 +45,7 @@
|
|
goto output_overrun;
|
|
if (HAVE_IP(t + 1, ip_end, ip))
|
|
goto input_overrun;
|
|
- do {
|
|
- *op++ = *ip++;
|
|
- } while (--t > 0);
|
|
- goto first_literal_run;
|
|
+ goto prep_first_literal_run;
|
|
}
|
|
|
|
while ((ip < ip_end)) {
|
|
@@ -71,23 +68,20 @@
|
|
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 {
|
|
+ t += (4 - 1);
|
|
+ if (t >= 2 * 4) {
|
|
+ memcpy(op, ip, t);
|
|
+ op += t;
|
|
+ ip += t;
|
|
+ } else {
|
|
+ do {
|
|
+ COPY4(op, ip);
|
|
+ op += 4;
|
|
+ ip += 4;
|
|
+ t -= 4;
|
|
+ } while (t >= 4);
|
|
+ if (t > 0) {
|
|
+prep_first_literal_run:
|
|
do {
|
|
*op++ = *ip++;
|
|
} while (--t > 0);
|
|
@@ -139,8 +133,7 @@
|
|
t += 31 + *ip++;
|
|
}
|
|
m_pos = op - 1;
|
|
- m_pos -= le16_to_cpu(get_unaligned(
|
|
- (const unsigned short *)ip)) >> 2;
|
|
+ m_pos -= get_unaligned_le16(ip) >> 2;
|
|
ip += 2;
|
|
} else if (t >= 16) {
|
|
m_pos = op;
|
|
@@ -158,8 +151,7 @@
|
|
}
|
|
t += 7 + *ip++;
|
|
}
|
|
- m_pos -= le16_to_cpu(get_unaligned(
|
|
- (const unsigned short *)ip)) >> 2;
|
|
+ m_pos -= get_unaligned_le16(ip) >> 2;
|
|
ip += 2;
|
|
if (m_pos == op)
|
|
goto eof_found;
|
|
@@ -184,21 +176,33 @@
|
|
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 {
|
|
+ if (t >= 2 * 4 - (3 - 1)) {
|
|
+ /*
|
|
+ * Assume memcpy don't copy
|
|
+ * more than 32 bytes at once
|
|
+ */
|
|
+ if ((op - m_pos) >= 32) {
|
|
+ t += (3 - 1);
|
|
+ memcpy(op, m_pos, t);
|
|
+ op += t;
|
|
+ m_pos += t;
|
|
+ } else if ((op - m_pos) >= 4) {
|
|
COPY4(op, m_pos);
|
|
op += 4;
|
|
m_pos += 4;
|
|
- t -= 4;
|
|
- } while (t >= 4);
|
|
- if (t > 0)
|
|
+ t -= 4 - (3 - 1);
|
|
do {
|
|
- *op++ = *m_pos++;
|
|
- } while (--t > 0);
|
|
+ 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
|
|
+ goto copy_match;
|
|
} else {
|
|
copy_match:
|
|
*op++ = *m_pos++;
|
|
@@ -247,9 +251,7 @@
|
|
*out_len = op - out;
|
|
return LZO_E_LOOKBEHIND_OVERRUN;
|
|
}
|
|
-
|
|
EXPORT_SYMBOL_GPL(lzo1x_decompress_safe);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("LZO1X Decompressor");
|
|
-
|