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import zlib-1.2.11-39.el9

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i9c-beta changed/i9c-beta/zlib-1.2.11-39.el9
MSVSphere Packaging Team 2 years ago
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SOURCES/zlib-1.2.11.tar.xz

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SOURCES/zlib-1.2.11-Add-Power8-optimized-crc32.patch
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SOURCES/zlib-1.2.11-CVE-2018-25032.patch
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From 5c44459c3b28a9bd3283aaceab7c615f8020c531 Mon Sep 17 00:00:00 2001
From: Mark Adler <madler@alumni.caltech.edu>
Date: Tue, 17 Apr 2018 22:09:22 -0700
Subject: [PATCH] Fix a bug that can crash deflate on some input when using
Z_FIXED.
This bug was reported by Danilo Ramos of Eideticom, Inc. It has
lain in wait 13 years before being found! The bug was introduced
in zlib 1.2.2.2, with the addition of the Z_FIXED option. That
option forces the use of fixed Huffman codes. For rare inputs with
a large number of distant matches, the pending buffer into which
the compressed data is written can overwrite the distance symbol
table which it overlays. That results in corrupted output due to
invalid distances, and can result in out-of-bound accesses,
crashing the application.
The fix here combines the distance buffer and literal/length
buffers into a single symbol buffer. Now three bytes of pending
buffer space are opened up for each literal or length/distance
pair consumed, instead of the previous two bytes. This assures
that the pending buffer cannot overwrite the symbol table, since
the maximum fixed code compressed length/distance is 31 bits, and
since there are four bytes of pending space for every three bytes
of symbol space.
---
deflate.c | 74 ++++++++++++++++++++++++++++++++++++++++---------------
deflate.h | 25 +++++++++----------
trees.c | 50 +++++++++++--------------------------
3 files changed, 79 insertions(+), 70 deletions(-)
diff --git a/deflate.c b/deflate.c
index 425babc..19cba87 100644
--- a/deflate.c
+++ b/deflate.c
@@ -255,11 +255,6 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
int wrap = 1;
static const char my_version[] = ZLIB_VERSION;
- ushf *overlay;
- /* We overlay pending_buf and d_buf+l_buf. This works since the average
- * output size for (length,distance) codes is <= 24 bits.
- */
-
if (version == Z_NULL || version[0] != my_version[0] ||
stream_size != sizeof(z_stream)) {
return Z_VERSION_ERROR;
@@ -329,9 +324,47 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
- overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
- s->pending_buf = (uchf *) overlay;
- s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L);
+ /* We overlay pending_buf and sym_buf. This works since the average size
+ * for length/distance pairs over any compressed block is assured to be 31
+ * bits or less.
+ *
+ * Analysis: The longest fixed codes are a length code of 8 bits plus 5
+ * extra bits, for lengths 131 to 257. The longest fixed distance codes are
+ * 5 bits plus 13 extra bits, for distances 16385 to 32768. The longest
+ * possible fixed-codes length/distance pair is then 31 bits total.
+ *
+ * sym_buf starts one-fourth of the way into pending_buf. So there are
+ * three bytes in sym_buf for every four bytes in pending_buf. Each symbol
+ * in sym_buf is three bytes -- two for the distance and one for the
+ * literal/length. As each symbol is consumed, the pointer to the next
+ * sym_buf value to read moves forward three bytes. From that symbol, up to
+ * 31 bits are written to pending_buf. The closest the written pending_buf
+ * bits gets to the next sym_buf symbol to read is just before the last
+ * code is written. At that time, 31*(n-2) bits have been written, just
+ * after 24*(n-2) bits have been consumed from sym_buf. sym_buf starts at
+ * 8*n bits into pending_buf. (Note that the symbol buffer fills when n-1
+ * symbols are written.) The closest the writing gets to what is unread is
+ * then n+14 bits. Here n is lit_bufsize, which is 16384 by default, and
+ * can range from 128 to 32768.
+ *
+ * Therefore, at a minimum, there are 142 bits of space between what is
+ * written and what is read in the overlain buffers, so the symbols cannot
+ * be overwritten by the compressed data. That space is actually 139 bits,
+ * due to the three-bit fixed-code block header.
+ *
+ * That covers the case where either Z_FIXED is specified, forcing fixed
+ * codes, or when the use of fixed codes is chosen, because that choice
+ * results in a smaller compressed block than dynamic codes. That latter
+ * condition then assures that the above analysis also covers all dynamic
+ * blocks. A dynamic-code block will only be chosen to be emitted if it has
+ * fewer bits than a fixed-code block would for the same set of symbols.
+ * Therefore its average symbol length is assured to be less than 31. So
+ * the compressed data for a dynamic block also cannot overwrite the
+ * symbols from which it is being constructed.
+ */
+
+ s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, 4);
+ s->pending_buf_size = (ulg)s->lit_bufsize * 4;
if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
s->pending_buf == Z_NULL) {
@@ -340,8 +373,12 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
deflateEnd (strm);
return Z_MEM_ERROR;
}
- s->d_buf = overlay + s->lit_bufsize/sizeof(ush);
- s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize;
+ s->sym_buf = s->pending_buf + s->lit_bufsize;
+ s->sym_end = (s->lit_bufsize - 1) * 3;
+ /* We avoid equality with lit_bufsize*3 because of wraparound at 64K
+ * on 16 bit machines and because stored blocks are restricted to
+ * 64K-1 bytes.
+ */
s->level = level;
s->strategy = strategy;
@@ -552,7 +589,7 @@ int ZEXPORT deflatePrime (strm, bits, value)
if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
s = strm->state;
- if ((Bytef *)(s->d_buf) < s->pending_out + ((Buf_size + 7) >> 3))
+ if (s->sym_buf < s->pending_out + ((Buf_size + 7) >> 3))
return Z_BUF_ERROR;
do {
put = Buf_size - s->bi_valid;
@@ -1113,7 +1150,6 @@ int ZEXPORT deflateCopy (dest, source)
#else
deflate_state *ds;
deflate_state *ss;
- ushf *overlay;
if (deflateStateCheck(source) || dest == Z_NULL) {
@@ -1133,8 +1169,7 @@ int ZEXPORT deflateCopy (dest, source)
ds->window = (Bytef *) ZALLOC_WINDOW(dest, ds->w_size, 2*sizeof(Byte));
ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos));
ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos));
- overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2);
- ds->pending_buf = (uchf *) overlay;
+ ds->pending_buf = (uchf *) ZALLOC(dest, ds->lit_bufsize, 4);
if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
ds->pending_buf == Z_NULL) {
@@ -1148,8 +1183,7 @@ int ZEXPORT deflateCopy (dest, source)
zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
- ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush);
- ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize;
+ ds->sym_buf = ds->pending_buf + ds->lit_bufsize;
ds->l_desc.dyn_tree = ds->dyn_ltree;
ds->d_desc.dyn_tree = ds->dyn_dtree;
@@ -1925,7 +1959,7 @@ local block_state deflate_fast(s, flush)
FLUSH_BLOCK(s, 1);
return finish_done;
}
- if (s->last_lit)
+ if (s->sym_next)
FLUSH_BLOCK(s, 0);
return block_done;
}
@@ -2056,7 +2090,7 @@ local block_state deflate_slow(s, flush)
FLUSH_BLOCK(s, 1);
return finish_done;
}
- if (s->last_lit)
+ if (s->sym_next)
FLUSH_BLOCK(s, 0);
return block_done;
}
@@ -2131,7 +2165,7 @@ local block_state deflate_rle(s, flush)
FLUSH_BLOCK(s, 1);
return finish_done;
}
- if (s->last_lit)
+ if (s->sym_next)
FLUSH_BLOCK(s, 0);
return block_done;
}
@@ -2170,7 +2204,7 @@ local block_state deflate_huff(s, flush)
FLUSH_BLOCK(s, 1);
return finish_done;
}
- if (s->last_lit)
+ if (s->sym_next)
FLUSH_BLOCK(s, 0);
return block_done;
}
diff --git a/deflate.h b/deflate.h
index 23ecdd3..d4cf1a9 100644
--- a/deflate.h
+++ b/deflate.h
@@ -217,7 +217,7 @@ typedef struct internal_state {
/* Depth of each subtree used as tie breaker for trees of equal frequency
*/
- uchf *l_buf; /* buffer for literals or lengths */
+ uchf *sym_buf; /* buffer for distances and literals/lengths */
uInt lit_bufsize;
/* Size of match buffer for literals/lengths. There are 4 reasons for
@@ -239,13 +239,8 @@ typedef struct internal_state {
* - I can't count above 4
*/
- uInt last_lit; /* running index in l_buf */
-
- ushf *d_buf;
- /* Buffer for distances. To simplify the code, d_buf and l_buf have
- * the same number of elements. To use different lengths, an extra flag
- * array would be necessary.
- */
+ uInt sym_next; /* running index in sym_buf */
+ uInt sym_end; /* symbol table full when sym_next reaches this */
ulg opt_len; /* bit length of current block with optimal trees */
ulg static_len; /* bit length of current block with static trees */
@@ -325,20 +320,22 @@ void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
# define _tr_tally_lit(s, c, flush) \
{ uch cc = (c); \
- s->d_buf[s->last_lit] = 0; \
- s->l_buf[s->last_lit++] = cc; \
+ s->sym_buf[s->sym_next++] = 0; \
+ s->sym_buf[s->sym_next++] = 0; \
+ s->sym_buf[s->sym_next++] = cc; \
s->dyn_ltree[cc].Freq++; \
- flush = (s->last_lit == s->lit_bufsize-1); \
+ flush = (s->sym_next == s->sym_end); \
}
# define _tr_tally_dist(s, distance, length, flush) \
{ uch len = (uch)(length); \
ush dist = (ush)(distance); \
- s->d_buf[s->last_lit] = dist; \
- s->l_buf[s->last_lit++] = len; \
+ s->sym_buf[s->sym_next++] = dist; \
+ s->sym_buf[s->sym_next++] = dist >> 8; \
+ s->sym_buf[s->sym_next++] = len; \
dist--; \
s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
s->dyn_dtree[d_code(dist)].Freq++; \
- flush = (s->last_lit == s->lit_bufsize-1); \
+ flush = (s->sym_next == s->sym_end); \
}
#else
# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c)
diff --git a/trees.c b/trees.c
index 4f4a650..decaeb7 100644
--- a/trees.c
+++ b/trees.c
@@ -416,7 +416,7 @@ local void init_block(s)
s->dyn_ltree[END_BLOCK].Freq = 1;
s->opt_len = s->static_len = 0L;
- s->last_lit = s->matches = 0;
+ s->sym_next = s->matches = 0;
}
#define SMALLEST 1
@@ -948,7 +948,7 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
- s->last_lit));
+ s->sym_next / 3));
if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
@@ -1017,8 +1017,9 @@ int ZLIB_INTERNAL _tr_tally (s, dist, lc)
unsigned dist; /* distance of matched string */
unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
{
- s->d_buf[s->last_lit] = (ush)dist;
- s->l_buf[s->last_lit++] = (uch)lc;
+ s->sym_buf[s->sym_next++] = dist;
+ s->sym_buf[s->sym_next++] = dist >> 8;
+ s->sym_buf[s->sym_next++] = lc;
if (dist == 0) {
/* lc is the unmatched char */
s->dyn_ltree[lc].Freq++;
@@ -1033,30 +1034,7 @@ int ZLIB_INTERNAL _tr_tally (s, dist, lc)
s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++;
s->dyn_dtree[d_code(dist)].Freq++;
}
-
-#ifdef TRUNCATE_BLOCK
- /* Try to guess if it is profitable to stop the current block here */
- if ((s->last_lit & 0x1fff) == 0 && s->level > 2) {
- /* Compute an upper bound for the compressed length */
- ulg out_length = (ulg)s->last_lit*8L;
- ulg in_length = (ulg)((long)s->strstart - s->block_start);
- int dcode;
- for (dcode = 0; dcode < D_CODES; dcode++) {
- out_length += (ulg)s->dyn_dtree[dcode].Freq *
- (5L+extra_dbits[dcode]);
- }
- out_length >>= 3;
- Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ",
- s->last_lit, in_length, out_length,
- 100L - out_length*100L/in_length));
- if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1;
- }
-#endif
- return (s->last_lit == s->lit_bufsize-1);
- /* We avoid equality with lit_bufsize because of wraparound at 64K
- * on 16 bit machines and because stored blocks are restricted to
- * 64K-1 bytes.
- */
+ return (s->sym_next == s->sym_end);
}
/* ===========================================================================
@@ -1069,13 +1047,14 @@ local void compress_block(s, ltree, dtree)
{
unsigned dist; /* distance of matched string */
int lc; /* match length or unmatched char (if dist == 0) */
- unsigned lx = 0; /* running index in l_buf */
+ unsigned sx = 0; /* running index in sym_buf */
unsigned code; /* the code to send */
int extra; /* number of extra bits to send */
- if (s->last_lit != 0) do {
- dist = s->d_buf[lx];
- lc = s->l_buf[lx++];
+ if (s->sym_next != 0) do {
+ dist = s->sym_buf[sx++] & 0xff;
+ dist += (unsigned)(s->sym_buf[sx++] & 0xff) << 8;
+ lc = s->sym_buf[sx++];
if (dist == 0) {
send_code(s, lc, ltree); /* send a literal byte */
Tracecv(isgraph(lc), (stderr," '%c' ", lc));
@@ -1100,11 +1079,10 @@ local void compress_block(s, ltree, dtree)
}
} /* literal or match pair ? */
- /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */
- Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx,
- "pendingBuf overflow");
+ /* Check that the overlay between pending_buf and sym_buf is ok: */
+ Assert(s->pending < s->lit_bufsize + sx, "pendingBuf overflow");
- } while (lx < s->last_lit);
+ } while (sx < s->sym_next);
send_code(s, END_BLOCK, ltree);
}
--
2.34.1

73
SOURCES/zlib-1.2.11-Fix-broken-libxml2-for-python311.patch
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From 5eaae2af0defeca148c2a281873bb31a15246876 Mon Sep 17 00:00:00 2001
From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Thu, 2 Feb 2023 19:34:24 +0100
Subject: [PATCH] 2155328
---
contrib/s390/dfltcc.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/contrib/s390/dfltcc.c b/contrib/s390/dfltcc.c
index 72099e7..f8dc21c 100644
--- a/contrib/s390/dfltcc.c
+++ b/contrib/s390/dfltcc.c
@@ -456,7 +456,10 @@ again:
*strm->next_out = (Bytef)state->bi_buf;
/* Honor history and check value */
param->nt = 0;
- param->cv = state->wrap == 2 ? ZSWAP32(strm->adler) : strm->adler;
+ if (state->wrap == 1)
+ param->cv = strm->adler;
+ else if (state->wrap == 2)
+ param->cv = ZSWAP32(strm->adler);
/* When opening a block, choose a Huffman-Table Type */
if (!param->bcf) {
@@ -488,7 +491,10 @@ again:
state->bi_buf = 0; /* Avoid accessing next_out */
else
state->bi_buf = *strm->next_out & ((1 << state->bi_valid) - 1);
- strm->adler = state->wrap == 2 ? ZSWAP32(param->cv) : param->cv;
+ if (state->wrap == 1)
+ strm->adler = param->cv;
+ else if (state->wrap == 2)
+ strm->adler = ZSWAP32(param->cv);
/* Unmask the input data */
strm->avail_in += masked_avail_in;
@@ -600,11 +606,12 @@ dfltcc_inflate_action ZLIB_INTERNAL dfltcc_inflate(strm, flush, ret)
}
/* Translate stream to parameter block */
- param->cvt = state->flags ? CVT_CRC32 : CVT_ADLER32;
+ param->cvt = ((state->wrap & 4) && state->flags) ? CVT_CRC32 : CVT_ADLER32;
param->sbb = state->bits;
if (param->hl)
param->nt = 0; /* Honor history for the first block */
- param->cv = state->flags ? ZSWAP32(state->check) : state->check;
+ if (state->wrap & 4)
+ param->cv = state->flags ? ZSWAP32(state->check) : state->check;
/* Inflate */
do {
@@ -615,7 +622,9 @@ dfltcc_inflate_action ZLIB_INTERNAL dfltcc_inflate(strm, flush, ret)
strm->msg = oesc_msg(dfltcc_state->msg, param->oesc);
state->last = cc == DFLTCC_CC_OK;
state->bits = param->sbb;
- strm->adler = state->check = state->flags ? ZSWAP32(param->cv) : param->cv;
+ if (state->wrap & 4)
+ strm->adler = state->check = state->flags ?
+ ZSWAP32(param->cv) : param->cv;
if (cc == DFLTCC_CC_OP2_CORRUPT && param->oesc != 0) {
/* Report an error if stream is corrupted */
state->mode = BAD;
@@ -1077,4 +1086,4 @@ int ZLIB_INTERNAL dfltcc_inflate_get_dictionary(strm, dictionary, dict_length)
if (dict_length)
*dict_length = param->hl;
return Z_OK;
-}
\ No newline at end of file
+}
--
2.39.1

54
SOURCES/zlib-1.2.11-Fix-clang-s-behavior-on-versions-7.patch
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From 480b65cae6c20a41aa698a6c9d3b260f6f744004 Mon Sep 17 00:00:00 2001
From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Thu, 2 Feb 2023 19:41:32 +0100
Subject: [PATCH] 0003-PATCH-Fix-clang-s-behavior-on-versions-7.patch
---
contrib/power/clang_workaround.h | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/contrib/power/clang_workaround.h b/contrib/power/clang_workaround.h
index b5e7dae..915f7e5 100644
--- a/contrib/power/clang_workaround.h
+++ b/contrib/power/clang_workaround.h
@@ -39,7 +39,12 @@ __vector unsigned long long __builtin_pack_vector (unsigned long __a,
return __v;
}
-#ifndef vec_xxpermdi
+/*
+ * Clang 7 changed the behavior of vec_xxpermdi in order to provide the same
+ * behavior of GCC. That means code adapted to Clang >= 7 does not work on
+ * Clang <= 6. So, fallback to __builtin_unpack_vector() on Clang <= 6.
+ */
+#if !defined vec_xxpermdi || __clang_major__ <= 6
static inline
unsigned long __builtin_unpack_vector (__vector unsigned long long __v,
@@ -62,9 +67,9 @@ static inline
unsigned long __builtin_unpack_vector_0 (__vector unsigned long long __v)
{
#if defined(__BIG_ENDIAN__)
- return vec_xxpermdi(__v, __v, 0x0)[1];
- #else
return vec_xxpermdi(__v, __v, 0x0)[0];
+ #else
+ return vec_xxpermdi(__v, __v, 0x3)[0];
#endif
}
@@ -72,9 +77,9 @@ static inline
unsigned long __builtin_unpack_vector_1 (__vector unsigned long long __v)
{
#if defined(__BIG_ENDIAN__)
- return vec_xxpermdi(__v, __v, 0x3)[1];
- #else
return vec_xxpermdi(__v, __v, 0x3)[0];
+ #else
+ return vec_xxpermdi(__v, __v, 0x0)[0];
#endif
}
#endif /* vec_xxpermdi */
--
2.39.1

206
SOURCES/zlib-1.2.11-IBM-DFLTCC-compression-level-switching-issues.patch
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@ -0,0 +1,206 @@
Subject: [PATCH] Fixed DFLTCC compression level switching issues
---
configure | 4 +--
contrib/s390/dfltcc.c | 52 ++++++++++++++++++++++++++++++-----
contrib/s390/dfltcc_deflate.h | 2 ++
deflate.c | 12 ++++----
test/infcover.c | 2 +-
5 files changed, 57 insertions(+), 15 deletions(-)
diff --git a/configure b/configure
index bfe4386..70ed86b 100755
--- a/configure
+++ b/configure
@@ -139,7 +139,7 @@ case "$1" in
-w* | --warn) warn=1; shift ;;
-d* | --debug) debug=1; shift ;;
--dfltcc)
- CFLAGS="$CFLAGS -DDFLTCC"
+ CFLAGS="$CFLAGS -DDFLTCC -DDFLTCC_LEVEL_MASK=0x7e"
OBJC="$OBJC dfltcc.o"
PIC_OBJC="$PIC_OBJC dfltcc.lo"
shift
@@ -838,7 +838,7 @@ cat > $test.c << EOF
#include <sys/sdt.h>
int main() { return 0; }
EOF
-if try ${CC} ${CFLAGS} $test.c; then
+ if try $CC -c $CFLAGS $test.c; then
echo "Checking for sys/sdt.h ... Yes." | tee -a configure.log
CFLAGS="$CFLAGS -DHAVE_SYS_SDT_H"
SFLAGS="$SFLAGS -DHAVE_SYS_SDT_H"
diff --git a/contrib/s390/dfltcc.c b/contrib/s390/dfltcc.c
index d88a0d6..94a196f 100644
--- a/contrib/s390/dfltcc.c
+++ b/contrib/s390/dfltcc.c
@@ -350,8 +350,12 @@ int ZLIB_INTERNAL dfltcc_deflate(strm, flush, result)
int soft_bcc;
int no_flush;
- if (!dfltcc_can_deflate(strm))
+ if (!dfltcc_can_deflate(strm)) {
+ /* Clear history. */
+ if (flush == Z_FULL_FLUSH)
+ param->hl = 0;
return 0;
+ }
again:
masked_avail_in = 0;
@@ -376,7 +380,8 @@ again:
/* Clear history. */
if (flush == Z_FULL_FLUSH)
param->hl = 0;
- *result = need_more;
+ /* Trigger block post-processing if necessary. */
+ *result = no_flush ? need_more : block_done;
return 1;
}
@@ -403,13 +408,18 @@ again:
param->bcf = 0;
dfltcc_state->block_threshold =
strm->total_in + dfltcc_state->block_size;
- if (strm->avail_out == 0) {
- *result = need_more;
- return 1;
- }
}
}
+ /* No space for compressed data. If we proceed, dfltcc_cmpr() will return
+ * DFLTCC_CC_OP1_TOO_SHORT without buffering header bits, but we will still
+ * set BCF=1, which is wrong. Avoid complications and return early.
+ */
+ if (strm->avail_out == 0) {
+ *result = need_more;
+ return 1;
+ }
+
/* The caller gave us too much data. Pass only one block worth of
* uncompressed data to DFLTCC and mask the rest, so that on the next
* iteration we start a new block.
@@ -737,10 +747,15 @@ __attribute__((constructor)) local void init_globals(void)
* compiling with -m31, gcc defaults to ESA mode, however, since the kernel
* is 64-bit, it's always z/Architecture mode at runtime.
*/
- __asm__ volatile(".machinemode push\n"
+ __asm__ volatile(
+#ifndef __clang__
+ ".machinemode push\n"
".machinemode zarch\n"
+#endif
"stfle %[facilities]\n"
+#ifndef __clang__
".machinemode pop\n"
+#endif
: [facilities] "=Q" (cpu_facilities)
, [r0] "+r" (r0)
:
@@ -872,6 +887,28 @@ int ZLIB_INTERNAL dfltcc_deflate_params(strm, level, strategy, flush)
return Z_OK;
}
+int ZLIB_INTERNAL dfltcc_deflate_done(strm, flush)
+ z_streamp strm;
+ int flush;
+{
+ deflate_state FAR *state = (deflate_state FAR *)strm->state;
+ struct dfltcc_state FAR *dfltcc_state = GET_DFLTCC_STATE(state);
+ struct dfltcc_param_v0 FAR *param = &dfltcc_state->param;
+
+ /* When deflate(Z_FULL_FLUSH) is called with small avail_out, it might
+ * close the block without resetting the compression state. Detect this
+ * situation and return that deflation is not done.
+ */
+ if (flush == Z_FULL_FLUSH && strm->avail_out == 0)
+ return 0;
+
+ /* Return that deflation is not done if DFLTCC is used and either it
+ * buffered some data (Continuation Flag is set), or has not written EOBS
+ * yet (Block-Continuation Flag is set).
+ */
+ return !dfltcc_can_deflate(strm) || (!param->cf && !param->bcf);
+}
+
/*
Preloading history.
*/
@@ -925,6 +962,7 @@ int ZLIB_INTERNAL dfltcc_deflate_set_dictionary(strm, dictionary, dict_length)
append_history(param, state->window, dictionary, dict_length);
state->strstart = 1; /* Add FDICT to zlib header */
+ state->block_start = state->strstart; /* Make deflate_stored happy */
return Z_OK;
}
diff --git a/contrib/s390/dfltcc_deflate.h b/contrib/s390/dfltcc_deflate.h
index de36784..914daa4 100644
--- a/contrib/s390/dfltcc_deflate.h
+++ b/contrib/s390/dfltcc_deflate.h
@@ -11,6 +11,7 @@ int ZLIB_INTERNAL dfltcc_deflate_params OF((z_streamp strm,
int level,
int strategy,
int *flush));
+int ZLIB_INTERNAL dfltcc_deflate_done OF((z_streamp strm, int flush));
int ZLIB_INTERNAL dfltcc_deflate_set_dictionary OF((z_streamp strm,
const Bytef *dictionary,
uInt dict_length));
@@ -41,6 +42,7 @@ int ZLIB_INTERNAL dfltcc_deflate_get_dictionary OF((z_streamp strm,
if (err == Z_STREAM_ERROR) \
return err; \
} while (0)
+#define DEFLATE_DONE dfltcc_deflate_done
#define DEFLATE_BOUND_ADJUST_COMPLEN(strm, complen, source_len) \
do { \
if (dfltcc_can_deflate((strm))) \
diff --git a/deflate.c b/deflate.c
index d907a1b..085abbe 100644
--- a/deflate.c
+++ b/deflate.c
@@ -75,6 +75,7 @@ const char deflate_copyright[] =
#define DEFLATE_GET_DICTIONARY_HOOK(strm, dict, dict_len) do {} while (0)
#define DEFLATE_RESET_KEEP_HOOK(strm) do {} while (0)
#define DEFLATE_PARAMS_HOOK(strm, level, strategy, hook_flush) do {} while (0)
+#define DEFLATE_DONE(strm, flush) 1
#define DEFLATE_BOUND_ADJUST_COMPLEN(strm, complen, sourceLen) do {} while (0)
#define DEFLATE_NEED_CONSERVATIVE_BOUND(strm) 0
#define DEFLATE_HOOK(strm, flush, bstate) 0
@@ -605,14 +606,15 @@ int ZEXPORT deflateParams(strm, level, strategy)
DEFLATE_PARAMS_HOOK(strm, level, strategy, &hook_flush);
func = configuration_table[s->level].func;
- if ((strategy != s->strategy || func != configuration_table[level].func ||
- hook_flush != Z_NO_FLUSH) && s->last_flush != -2) {
+ if (((strategy != s->strategy || func != configuration_table[level].func) &&
+ s->last_flush != -2) || hook_flush != Z_NO_FLUSH) {
/* Flush the last buffer: */
- int err = deflate(strm, RANK(hook_flush) > RANK(Z_BLOCK) ?
- hook_flush : Z_BLOCK);
+ int flush = RANK(hook_flush) > RANK(Z_BLOCK) ? hook_flush : Z_BLOCK;
+ int err = deflate(strm, flush);
if (err == Z_STREAM_ERROR)
return err;
- if (strm->avail_in || (s->strstart - s->block_start) + s->lookahead)
+ if (strm->avail_in || (s->strstart - s->block_start) + s->lookahead ||
+ !DEFLATE_DONE(strm, flush))
return Z_BUF_ERROR;
}
if (s->level != level) {
diff --git a/test/infcover.c b/test/infcover.c
index a34cd17..a208219 100644
--- a/test/infcover.c
+++ b/test/infcover.c
@@ -373,7 +373,7 @@ local void cover_support(void)
mem_setup(&strm);
strm.avail_in = 0;
strm.next_in = Z_NULL;
- ret = inflateInit_(&strm, ZLIB_VERSION - 1, (int)sizeof(z_stream));
+ ret = inflateInit_(&strm, &ZLIB_VERSION[1], (int)sizeof(z_stream));
assert(ret == Z_VERSION_ERROR);
mem_done(&strm, "wrong version");
--
2.26.0

90
SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-deflate-compressBound-fix.patch
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@ -0,0 +1,90 @@
--- a/compress.c
+++ b/compress.c
@@ -5,9 +5,15 @@
/* @(#) $Id$ */
-#define ZLIB_INTERNAL
+#include "zutil.h"
#include "zlib.h"
+#ifdef DFLTCC
+# include "contrib/s390/dfltcc.h"
+#else
+#define DEFLATE_BOUND_COMPLEN(source_len) 0
+#endif
+
/* ===========================================================================
Compresses the source buffer into the destination buffer. The level
parameter has the same meaning as in deflateInit. sourceLen is the byte
@@ -81,6 +87,12 @@ int ZEXPORT compress (dest, destLen, source, sourceLen)
uLong ZEXPORT compressBound (sourceLen)
uLong sourceLen;
{
+ uLong complen = DEFLATE_BOUND_COMPLEN(sourceLen);
+
+ if (complen > 0)
+ /* Architecture-specific code provided an upper bound. */
+ return complen + ZLIB_WRAPLEN;
+
return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
(sourceLen >> 25) + 13;
}
--- a/contrib/s390/dfltcc.h
+++ b/contrib/s390/dfltcc.h
@@ -12,6 +12,28 @@ void ZLIB_INTERNAL dfltcc_reset OF((z_streamp strm, uInt size));
voidpf ZLIB_INTERNAL dfltcc_alloc_window OF((z_streamp strm, uInt items,
uInt size));
void ZLIB_INTERNAL dfltcc_free_window OF((z_streamp strm, voidpf w));
+#define DFLTCC_BLOCK_HEADER_BITS 3
+#define DFLTCC_HLITS_COUNT_BITS 5
+#define DFLTCC_HDISTS_COUNT_BITS 5
+#define DFLTCC_HCLENS_COUNT_BITS 4
+#define DFLTCC_MAX_HCLENS 19
+#define DFLTCC_HCLEN_BITS 3
+#define DFLTCC_MAX_HLITS 286
+#define DFLTCC_MAX_HDISTS 30
+#define DFLTCC_MAX_HLIT_HDIST_BITS 7
+#define DFLTCC_MAX_SYMBOL_BITS 16
+#define DFLTCC_MAX_EOBS_BITS 15
+#define DFLTCC_MAX_PADDING_BITS 7
+#define DEFLATE_BOUND_COMPLEN(source_len) \
+ ((DFLTCC_BLOCK_HEADER_BITS + \
+ DFLTCC_HLITS_COUNT_BITS + \
+ DFLTCC_HDISTS_COUNT_BITS + \
+ DFLTCC_HCLENS_COUNT_BITS + \
+ DFLTCC_MAX_HCLENS * DFLTCC_HCLEN_BITS + \
+ (DFLTCC_MAX_HLITS + DFLTCC_MAX_HDISTS) * DFLTCC_MAX_HLIT_HDIST_BITS + \
+ (source_len) * DFLTCC_MAX_SYMBOL_BITS + \
+ DFLTCC_MAX_EOBS_BITS + \
+ DFLTCC_MAX_PADDING_BITS) >> 3)
int ZLIB_INTERNAL dfltcc_can_inflate OF((z_streamp strm));
typedef enum {
DFLTCC_INFLATE_CONTINUE,
diff --git a/contrib/s390/dfltcc_deflate.h b/contrib/s390/dfltcc_deflate.h
index 03f7f53..46acfc5 100644
--- a/contrib/s390/dfltcc_deflate.h
+++ b/contrib/s390/dfltcc_deflate.h
@@ -46,8 +46,7 @@ int ZLIB_INTERNAL dfltcc_deflate_get_dictionary OF((z_streamp strm,
#define DEFLATE_BOUND_ADJUST_COMPLEN(strm, complen, source_len) \
do { \
if (dfltcc_can_deflate((strm))) \
- (complen) = (3 + 5 + 5 + 4 + 19 * 3 + (286 + 30) * 7 + \
- (source_len) * 16 + 15 + 7) >> 3; \
+ (complen) = DEFLATE_BOUND_COMPLEN(source_len); \
} while (0)
#define DEFLATE_NEED_CONSERVATIVE_BOUND(strm) (dfltcc_can_deflate((strm)))
#define DEFLATE_HOOK dfltcc_deflate
diff --git a/zutil.h b/zutil.h
index 14277bc..cf90e49 100644
--- a/zutil.h
+++ b/zutil.h
@@ -87,6 +87,8 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
+#define ZLIB_WRAPLEN 6 /* zlib format overhead */
+
/* target dependencies */
#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))

516
SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix.patch
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@ -0,0 +1,516 @@
From 608b71008c16ce6fbf2305145c5ffb69cd88ef59 Mon Sep 17 00:00:00 2001
From: Ondrej Dubaj <odubaj@redhat.com>
Date: Fri, 7 Aug 2020 07:12:50 +0200
Subject: [PATCH] Fix for Z hardware-accelerated deflate for s390x
---
configure | 7 +
contrib/s390/dfltcc.c | 244 +++++++++++++++++++++-------------
contrib/s390/dfltcc_deflate.h | 10 +-
deflate.c | 21 +--
4 files changed, 177 insertions(+), 105 deletions(-)
diff --git a/configure b/configure
index 66caece..bfe4386 100755
--- a/configure
+++ b/configure
@@ -114,6 +114,7 @@ case "$1" in
echo ' configure [--const] [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' | tee -a configure.log
echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log
echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log
+ echo ' [--dfltcc]' | tee -a configure.log
exit 0 ;;
-p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
-e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
@@ -137,6 +138,12 @@ case "$1" in
-c* | --const) zconst=1; shift ;;
-w* | --warn) warn=1; shift ;;
-d* | --debug) debug=1; shift ;;
+ --dfltcc)
+ CFLAGS="$CFLAGS -DDFLTCC"
+ OBJC="$OBJC dfltcc.o"
+ PIC_OBJC="$PIC_OBJC dfltcc.lo"
+ shift
+ ;;
*)
echo "unknown option: $1" | tee -a configure.log
echo "$0 --help for help" | tee -a configure.log
diff --git a/contrib/s390/dfltcc.c b/contrib/s390/dfltcc.c
index d187796..d88a0d6 100644
--- a/contrib/s390/dfltcc.c
+++ b/contrib/s390/dfltcc.c
@@ -2,12 +2,13 @@
/*
Use the following commands to build zlib with DFLTCC support:
- $ CFLAGS=-DDFLTCC ./configure
- $ make OBJA=dfltcc.o PIC_OBJA=dfltcc.lo
+ $ ./configure --dfltcc
+ $ make
*/
#define _GNU_SOURCE
#include <ctype.h>
+#include <errno.h>
#include <inttypes.h>
#include <stddef.h>
#include <stdio.h>
@@ -230,31 +231,28 @@ struct dfltcc_state {
/*
Compress.
*/
-local inline int dfltcc_are_params_ok(int level,
- uInt window_bits,
- int strategy,
- uLong level_mask);
-local inline int dfltcc_are_params_ok(level, window_bits, strategy, level_mask)
+local inline int dfltcc_can_deflate_with_params(z_streamp strm,
+ int level,
+ uInt window_bits,
+ int strategy);
+local inline int dfltcc_can_deflate_with_params(strm,
+ level,
+ window_bits,
+ strategy)
+ z_streamp strm;
int level;
uInt window_bits;
int strategy;
- uLong level_mask;
-{
- return (level_mask & (1 << level)) != 0 &&
- (window_bits == HB_BITS) &&
- (strategy == Z_FIXED || strategy == Z_DEFAULT_STRATEGY);
-}
-
-
-int ZLIB_INTERNAL dfltcc_can_deflate(strm)
- z_streamp strm;
{
deflate_state FAR *state = (deflate_state FAR *)strm->state;
struct dfltcc_state FAR *dfltcc_state = GET_DFLTCC_STATE(state);
/* Unsupported compression settings */
- if (!dfltcc_are_params_ok(state->level, state->w_bits, state->strategy,
- dfltcc_state->level_mask))
+ if ((dfltcc_state->level_mask & (1 << level)) == 0)
+ return 0;
+ if (window_bits != HB_BITS)
+ return 0;
+ if (strategy != Z_FIXED && strategy != Z_DEFAULT_STRATEGY)
return 0;
/* Unsupported hardware */
@@ -266,6 +264,17 @@ int ZLIB_INTERNAL dfltcc_can_deflate(strm)
return 1;
}
+int ZLIB_INTERNAL dfltcc_can_deflate(strm)
+ z_streamp strm;
+{
+ deflate_state FAR *state = (deflate_state FAR *)strm->state;
+
+ return dfltcc_can_deflate_with_params(strm,
+ state->level,
+ state->w_bits,
+ state->strategy);
+}
+
local void dfltcc_gdht OF((z_streamp strm));
local void dfltcc_gdht(strm)
z_streamp strm;
@@ -349,22 +358,24 @@ again:
soft_bcc = 0;
no_flush = flush == Z_NO_FLUSH;
- /* Trailing empty block. Switch to software, except when Continuation Flag
- * is set, which means that DFLTCC has buffered some output in the
- * parameter block and needs to be called again in order to flush it.
+ /* No input data. Return, except when Continuation Flag is set, which means
+ * that DFLTCC has buffered some output in the parameter block and needs to
+ * be called again in order to flush it.
*/
- if (flush == Z_FINISH && strm->avail_in == 0 && !param->cf) {
- if (param->bcf) {
- /* A block is still open, and the hardware does not support closing
- * blocks without adding data. Thus, close it manually.
- */
+ if (strm->avail_in == 0 && !param->cf) {
+ /* A block is still open, and the hardware does not support closing
+ * blocks without adding data. Thus, close it manually.
+ */
+ if (!no_flush && param->bcf) {
send_eobs(strm, param);
param->bcf = 0;
}
- return 0;
- }
-
- if (strm->avail_in == 0 && !param->cf) {
+ /* Let one of deflate_* functions write a trailing empty block. */
+ if (flush == Z_FINISH)
+ return 0;
+ /* Clear history. */
+ if (flush == Z_FULL_FLUSH)
+ param->hl = 0;
*result = need_more;
return 1;
}
@@ -418,7 +429,7 @@ again:
param->cvt = state->wrap == 2 ? CVT_CRC32 : CVT_ADLER32;
if (!no_flush)
/* We need to close a block. Always do this in software - when there is
- * no input data, the hardware will not nohor BCC. */
+ * no input data, the hardware will not honor BCC. */
soft_bcc = 1;
if (flush == Z_FINISH && !param->bcf)
/* We are about to open a BFINAL block, set Block Header Final bit
@@ -433,8 +444,8 @@ again:
param->sbb = (unsigned int)state->bi_valid;
if (param->sbb > 0)
*strm->next_out = (Bytef)state->bi_buf;
- if (param->hl)
- param->nt = 0; /* Honor history */
+ /* Honor history and check value */
+ param->nt = 0;
param->cv = state->wrap == 2 ? ZSWAP32(strm->adler) : strm->adler;
/* When opening a block, choose a Huffman-Table Type */
@@ -642,27 +653,86 @@ int ZLIB_INTERNAL dfltcc_inflate_disable(strm)
return 0;
}
-/*
- Memory management.
- DFLTCC requires parameter blocks and window to be aligned. zlib allows
- users to specify their own allocation functions, so using e.g.
- `posix_memalign' is not an option. Thus, we overallocate and take the
- aligned portion of the buffer.
-*/
+local int env_dfltcc_disabled;
+local int env_source_date_epoch;
+local unsigned long env_level_mask;
+local unsigned long env_block_size;
+local unsigned long env_block_threshold;
+local unsigned long env_dht_threshold;
+local unsigned long env_ribm;
+local uint64_t cpu_facilities[(DFLTCC_FACILITY / 64) + 1];
+local struct dfltcc_qaf_param cpu_af __attribute__((aligned(8)));
+
local inline int is_dfltcc_enabled OF((void));
local inline int is_dfltcc_enabled(void)
+{
+ if (env_dfltcc_disabled)
+ /* User has explicitly disabled DFLTCC. */
+ return 0;
+
+ return is_bit_set((const char *)cpu_facilities, DFLTCC_FACILITY);
+}
+
+local unsigned long xstrtoul OF((const char *s, unsigned long _default));
+local unsigned long xstrtoul(s, _default)
+ const char *s;
+ unsigned long _default;
+{
+ char *endptr;
+ unsigned long result;
+
+ if (!(s && *s))
+ return _default;
+ errno = 0;
+ result = strtoul(s, &endptr, 0);
+ return (errno || *endptr) ? _default : result;
+}
+
+__attribute__((constructor)) local void init_globals OF((void));
+__attribute__((constructor)) local void init_globals(void)
{
const char *env;
- uint64_t facilities[(DFLTCC_FACILITY / 64) + 1];
register char r0 __asm__("r0");
env = secure_getenv("DFLTCC");
- if (env && !strcmp(env, "0"))
- /* User has explicitly disabled DFLTCC. */
- return 0;
+
+
+ env_dfltcc_disabled = env && !strcmp(env, "0");
+
+ env = secure_getenv("SOURCE_DATE_EPOCH");
+ env_source_date_epoch = !!env;
+
+#ifndef DFLTCC_LEVEL_MASK
+#define DFLTCC_LEVEL_MASK 0x2
+#endif
+ env_level_mask = xstrtoul(secure_getenv("DFLTCC_LEVEL_MASK"),
+ DFLTCC_LEVEL_MASK);
+
+#ifndef DFLTCC_BLOCK_SIZE
+#define DFLTCC_BLOCK_SIZE 1048576
+#endif
+ env_block_size = xstrtoul(secure_getenv("DFLTCC_BLOCK_SIZE"),
+ DFLTCC_BLOCK_SIZE);
- memset(facilities, 0, sizeof(facilities));
- r0 = sizeof(facilities) / sizeof(facilities[0]) - 1;
+#ifndef DFLTCC_FIRST_FHT_BLOCK_SIZE
+#define DFLTCC_FIRST_FHT_BLOCK_SIZE 4096
+#endif
+ env_block_threshold = xstrtoul(secure_getenv("DFLTCC_FIRST_FHT_BLOCK_SIZE"),
+ DFLTCC_FIRST_FHT_BLOCK_SIZE);
+
+#ifndef DFLTCC_DHT_MIN_SAMPLE_SIZE
+#define DFLTCC_DHT_MIN_SAMPLE_SIZE 4096
+#endif
+ env_dht_threshold = xstrtoul(secure_getenv("DFLTCC_DHT_MIN_SAMPLE_SIZE"),
+ DFLTCC_DHT_MIN_SAMPLE_SIZE);
+
+#ifndef DFLTCC_RIBM
+#define DFLTCC_RIBM 0
+#endif
+ env_ribm = xstrtoul(secure_getenv("DFLTCC_RIBM"), DFLTCC_RIBM);
+
+ memset(cpu_facilities, 0, sizeof(cpu_facilities));
+ r0 = sizeof(cpu_facilities) / sizeof(cpu_facilities[0]) - 1;
/* STFLE is supported since z9-109 and only in z/Architecture mode. When
* compiling with -m31, gcc defaults to ESA mode, however, since the kernel
* is 64-bit, it's always z/Architecture mode at runtime.
@@ -671,31 +741,35 @@ local inline int is_dfltcc_enabled(void)
".machinemode zarch\n"
"stfle %[facilities]\n"
".machinemode pop\n"
- : [facilities] "=Q" (facilities)
+ : [facilities] "=Q" (cpu_facilities)
, [r0] "+r" (r0)
:
: "cc");
- return is_bit_set((const char *)facilities, DFLTCC_FACILITY);
+ /* Initialize available functions */
+ if (is_dfltcc_enabled())
+ dfltcc(DFLTCC_QAF, &cpu_af, NULL, NULL, NULL, NULL, NULL);
+ else
+ memset(&cpu_af, 0, sizeof(cpu_af));
}
+/*
+ Memory management.
+
+ DFLTCC requires parameter blocks and window to be aligned. zlib allows
+ users to specify their own allocation functions, so using e.g.
+ `posix_memalign' is not an option. Thus, we overallocate and take the
+ aligned portion of the buffer.
+*/
void ZLIB_INTERNAL dfltcc_reset(strm, size)
z_streamp strm;
uInt size;
{
struct dfltcc_state *dfltcc_state =
(struct dfltcc_state *)((char FAR *)strm->state + ALIGN_UP(size, 8));
- struct dfltcc_qaf_param *param =
- (struct dfltcc_qaf_param *)&dfltcc_state->param;
- const char *s;
- /* Initialize available functions */
- if (is_dfltcc_enabled()) {
- dfltcc(DFLTCC_QAF, param, NULL, NULL, NULL, NULL, NULL);
- memmove(&dfltcc_state->af, param, sizeof(dfltcc_state->af));
- } else
- memset(&dfltcc_state->af, 0, sizeof(dfltcc_state->af));
+ memcpy(&dfltcc_state->af, &cpu_af, sizeof(dfltcc_state->af));
- if (secure_getenv("SOURCE_DATE_EPOCH"))
+ if (env_source_date_epoch)
/* User needs reproducible results, but the output of DFLTCC_CMPR
* depends on buffers' page offsets.
*/
@@ -706,36 +780,11 @@ void ZLIB_INTERNAL dfltcc_reset(strm, size)
dfltcc_state->param.nt = 1;
/* Initialize tuning parameters */
-#ifndef DFLTCC_LEVEL_MASK
-#define DFLTCC_LEVEL_MASK 0x2
-#endif
- s = secure_getenv("DFLTCC_LEVEL_MASK");
- dfltcc_state->level_mask = (s && *s) ? strtoul(s, NULL, 0) :
- DFLTCC_LEVEL_MASK;
-#ifndef DFLTCC_BLOCK_SIZE
-#define DFLTCC_BLOCK_SIZE 1048576
-#endif
- s = secure_getenv("DFLTCC_BLOCK_SIZE");
- dfltcc_state->block_size = (s && *s) ? strtoul(s, NULL, 0) :
- DFLTCC_BLOCK_SIZE;
-#ifndef DFLTCC_FIRST_FHT_BLOCK_SIZE
-#define DFLTCC_FIRST_FHT_BLOCK_SIZE 4096
-#endif
- s = secure_getenv("DFLTCC_FIRST_FHT_BLOCK_SIZE");
- dfltcc_state->block_threshold = (s && *s) ? strtoul(s, NULL, 0) :
- DFLTCC_FIRST_FHT_BLOCK_SIZE;
-#ifndef DFLTCC_DHT_MIN_SAMPLE_SIZE
-#define DFLTCC_DHT_MIN_SAMPLE_SIZE 4096
-#endif
- s = secure_getenv("DFLTCC_DHT_MIN_SAMPLE_SIZE");
- dfltcc_state->dht_threshold = (s && *s) ? strtoul(s, NULL, 0) :
- DFLTCC_DHT_MIN_SAMPLE_SIZE;
-#ifndef DFLTCC_RIBM
-#define DFLTCC_RIBM 0
-#endif
- s = secure_getenv("DFLTCC_RIBM");
- dfltcc_state->param.ribm = (s && *s) ? strtoul(s, NULL, 0) :
- DFLTCC_RIBM;
+ dfltcc_state->level_mask = env_level_mask;
+ dfltcc_state->block_size = env_block_size;
+ dfltcc_state->block_threshold = env_block_threshold;
+ dfltcc_state->dht_threshold = env_dht_threshold;
+ dfltcc_state->param.ribm = env_ribm;
}
voidpf ZLIB_INTERNAL dfltcc_alloc_state(strm, items, size)
@@ -787,22 +836,26 @@ void ZLIB_INTERNAL dfltcc_free_window(strm, w)
/*
Switching between hardware and software compression.
+
DFLTCC does not support all zlib settings, e.g. generation of non-compressed
blocks or alternative window sizes. When such settings are applied on the
fly with deflateParams, we need to convert between hardware and software
window formats.
*/
-int ZLIB_INTERNAL dfltcc_deflate_params(strm, level, strategy)
+int ZLIB_INTERNAL dfltcc_deflate_params(strm, level, strategy, flush)
z_streamp strm;
int level;
int strategy;
+ int *flush;
{
deflate_state FAR *state = (deflate_state FAR *)strm->state;
struct dfltcc_state FAR *dfltcc_state = GET_DFLTCC_STATE(state);
struct dfltcc_param_v0 FAR *param = &dfltcc_state->param;
int could_deflate = dfltcc_can_deflate(strm);
- int can_deflate = dfltcc_are_params_ok(level, state->w_bits, strategy,
- dfltcc_state->level_mask);
+ int can_deflate = dfltcc_can_deflate_with_params(strm,
+ level,
+ state->w_bits,
+ strategy);
if (can_deflate == could_deflate)
/* We continue to work in the same mode - no changes needed */
@@ -812,8 +865,11 @@ int ZLIB_INTERNAL dfltcc_deflate_params(strm, level, strategy)
/* DFLTCC was not used yet - no changes needed */
return Z_OK;
- /* Switching between hardware and software is not implemented */
- return Z_STREAM_ERROR;
+ /* For now, do not convert between window formats - simply get rid of the
+ * old data instead.
+ */
+ *flush = Z_FULL_FLUSH;
+ return Z_OK;
}
/*
diff --git a/contrib/s390/dfltcc_deflate.h b/contrib/s390/dfltcc_deflate.h
index a129a91..de36784 100644
--- a/contrib/s390/dfltcc_deflate.h
+++ b/contrib/s390/dfltcc_deflate.h
@@ -9,7 +9,8 @@ int ZLIB_INTERNAL dfltcc_deflate OF((z_streamp strm,
block_state *result));
int ZLIB_INTERNAL dfltcc_deflate_params OF((z_streamp strm,
int level,
- int strategy));
+ int strategy,
+ int *flush));
int ZLIB_INTERNAL dfltcc_deflate_set_dictionary OF((z_streamp strm,
const Bytef *dictionary,
uInt dict_length));
@@ -29,11 +30,14 @@ int ZLIB_INTERNAL dfltcc_deflate_get_dictionary OF((z_streamp strm,
} while (0)
#define DEFLATE_RESET_KEEP_HOOK(strm) \
dfltcc_reset((strm), sizeof(deflate_state))
-#define DEFLATE_PARAMS_HOOK(strm, level, strategy) \
+#define DEFLATE_PARAMS_HOOK(strm, level, strategy, hook_flush) \
do { \
int err; \
\
- err = dfltcc_deflate_params((strm), (level), (strategy)); \
+ err = dfltcc_deflate_params((strm), \
+ (level), \
+ (strategy), \
+ (hook_flush)); \
if (err == Z_STREAM_ERROR) \
return err; \
} while (0)
diff --git a/deflate.c b/deflate.c
index b17a7dd..a80bd3e 100644
--- a/deflate.c
+++ b/deflate.c
@@ -74,7 +74,7 @@ const char deflate_copyright[] =
#define DEFLATE_SET_DICTIONARY_HOOK(strm, dict, dict_len) do {} while (0)
#define DEFLATE_GET_DICTIONARY_HOOK(strm, dict, dict_len) do {} while (0)
#define DEFLATE_RESET_KEEP_HOOK(strm) do {} while (0)
-#define DEFLATE_PARAMS_HOOK(strm, level, strategy) do {} while (0)
+#define DEFLATE_PARAMS_HOOK(strm, level, strategy, hook_flush) do {} while (0)
#define DEFLATE_BOUND_ADJUST_COMPLEN(strm, complen, sourceLen) do {} while (0)
#define DEFLATE_NEED_CONSERVATIVE_BOUND(strm) 0
#define DEFLATE_HOOK(strm, flush, bstate) 0
@@ -589,6 +589,7 @@ int ZEXPORT deflateParams(strm, level, strategy)
{
deflate_state *s;
compress_func func;
+ int hook_flush = Z_NO_FLUSH;
if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
s = strm->state;
@@ -601,13 +602,14 @@ int ZEXPORT deflateParams(strm, level, strategy)
if (level < 0 || level > 9 || strategy < 0 || strategy > Z_FIXED) {
return Z_STREAM_ERROR;
}
- DEFLATE_PARAMS_HOOK(strm, level, strategy);
+ DEFLATE_PARAMS_HOOK(strm, level, strategy, &hook_flush);
func = configuration_table[s->level].func;
- if ((strategy != s->strategy || func != configuration_table[level].func) &&
- s->high_water) {
+ if ((strategy != s->strategy || func != configuration_table[level].func ||
+ hook_flush != Z_NO_FLUSH) && s->high_water) {
/* Flush the last buffer: */
- int err = deflate(strm, Z_BLOCK);
+ int err = deflate(strm, RANK(hook_flush) > RANK(Z_BLOCK) ?
+ hook_flush : Z_BLOCK);
if (err == Z_STREAM_ERROR)
return err;
if (strm->avail_out == 0)
@@ -1065,7 +1067,6 @@ int ZEXPORT deflate (strm, flush)
}
if (flush != Z_FINISH) return Z_OK;
- if (s->wrap <= 0) return Z_STREAM_END;
/* Write the trailer */
#ifdef GZIP
@@ -1081,7 +1082,7 @@ int ZEXPORT deflate (strm, flush)
}
else
#endif
- {
+ if (s->wrap == 1) {
putShortMSB(s, (uInt)(strm->adler >> 16));
putShortMSB(s, (uInt)(strm->adler & 0xffff));
}
@@ -1090,7 +1091,11 @@ int ZEXPORT deflate (strm, flush)
* to flush the rest.
*/
if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */
- return s->pending != 0 ? Z_OK : Z_STREAM_END;
+ if (s->pending == 0) {
+ Assert(s->bi_valid == 0, "bi_buf not flushed");
+ return Z_STREAM_END;
+ }
+ return Z_OK;
}
/* ========================================================================= */
--
2.26.0

1709
SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-deflate-s390x.patch
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11
SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-deflate-strm-adler-fix.patch
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@ -0,0 +1,11 @@
--- a/contrib/s390/dfltcc.c
+++ b/contrib/s390/dfltcc.c
@@ -623,7 +623,7 @@
state->bits = param->sbb;
state->whave = param->hl;
state->wnext = (param->ho + param->hl) & ((1 << HB_BITS) - 1);
- state->check = state->flags ? ZSWAP32(param->cv) : param->cv;
+ strm->adler = state->check = state->flags ? ZSWAP32(param->cv) : param->cv;
if (cc == DFLTCC_CC_OP2_CORRUPT && param->oesc != 0) {
/* Report an error if stream is corrupted */
state->mode = BAD;

299
SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-inflate-small-window.patch
Unescape View File

@ -0,0 +1,299 @@
--- a/contrib/s390/dfltcc.c
+++ b/contrib/s390/dfltcc.c
@@ -539,10 +539,6 @@ int ZLIB_INTERNAL dfltcc_can_inflate(strm)
struct inflate_state FAR *state = (struct inflate_state FAR *)strm->state;
struct dfltcc_state FAR *dfltcc_state = GET_DFLTCC_STATE(state);
- /* Unsupported compression settings */
- if (state->wbits != HB_BITS)
- return 0;
-
/* Unsupported hardware */
return is_bit_set(dfltcc_state->af.fns, DFLTCC_XPND) &&
is_bit_set(dfltcc_state->af.fmts, DFLTCC_FMT0);
@@ -606,8 +602,6 @@ dfltcc_inflate_action ZLIB_INTERNAL dfltcc_inflate(strm, flush, ret)
/* Translate stream to parameter block */
param->cvt = state->flags ? CVT_CRC32 : CVT_ADLER32;
param->sbb = state->bits;
- param->hl = state->whave; /* Software and hardware history formats match */
- param->ho = (state->wnext - state->whave) & ((1 << HB_BITS) - 1);
if (param->hl)
param->nt = 0; /* Honor history for the first block */
param->cv = state->flags ? ZSWAP32(state->check) : state->check;
@@ -621,8 +615,6 @@ dfltcc_inflate_action ZLIB_INTERNAL dfltcc_inflate(strm, flush, ret)
strm->msg = oesc_msg(dfltcc_state->msg, param->oesc);
state->last = cc == DFLTCC_CC_OK;
state->bits = param->sbb;
- state->whave = param->hl;
- state->wnext = (param->ho + param->hl) & ((1 << HB_BITS) - 1);
strm->adler = state->check = state->flags ? ZSWAP32(param->cv) : param->cv;
if (cc == DFLTCC_CC_OP2_CORRUPT && param->oesc != 0) {
/* Report an error if stream is corrupted */
@@ -644,11 +636,52 @@ int ZLIB_INTERNAL dfltcc_was_inflate_used(strm)
return !param->nt;
}
+/*
+ Rotates a circular buffer.
+ The implementation is based on https://cplusplus.com/reference/algorithm/rotate/
+ */
+local void rotate OF((Bytef *start, Bytef *pivot, Bytef *end));
+local void rotate(start, pivot, end)
+ Bytef *start;
+ Bytef *pivot;
+ Bytef *end;
+{
+ Bytef *p = pivot;
+ Bytef tmp;
+
+ while (p != start) {
+ tmp = *start;
+ *start = *p;
+ *p = tmp;
+
+ start++;
+ p++;
+
+ if (p == end)
+ p = pivot;
+ else if (start == pivot)
+ pivot = p;
+ }
+}
+
+#define MIN(x, y) ({ \
+ typeof(x) _x = (x); \
+ typeof(y) _y = (y); \
+ _x < _y ? _x : _y; \
+})
+
+#define MAX(x, y) ({ \
+ typeof(x) _x = (x); \
+ typeof(y) _y = (y); \
+ _x > _y ? _x : _y; \
+})
+
int ZLIB_INTERNAL dfltcc_inflate_disable(strm)
z_streamp strm;
{
struct inflate_state FAR *state = (struct inflate_state FAR *)strm->state;
struct dfltcc_state FAR *dfltcc_state = GET_DFLTCC_STATE(state);
+ struct dfltcc_param_v0 *param = &dfltcc_state->param;
if (!dfltcc_can_inflate(strm))
return 0;
@@ -660,6 +693,9 @@ int ZLIB_INTERNAL dfltcc_inflate_disable(strm)
return 1;
/* DFLTCC was not used yet - decompress in software */
memset(&dfltcc_state->af, 0, sizeof(dfltcc_state->af));
+ /* Convert the window from the hardware to the software format */
+ rotate(state->window, state->window + param->ho, state->window + HB_SIZE);
+ state->whave = state->wnext = MIN(param->hl, state->wsize);
return 0;
}
@@ -830,9 +866,9 @@ voidpf ZLIB_INTERNAL dfltcc_alloc_window(strm, items, size)
voidpf p, w;
/* To simplify freeing, we store the pointer to the allocated buffer right
- * before the window.
+ * before the window. Note that DFLTCC always uses HB_SIZE bytes.
*/
- p = ZALLOC(strm, sizeof(voidpf) + items * size + PAGE_ALIGN,
+ p = ZALLOC(strm, sizeof(voidpf) + MAX(items * size, HB_SIZE) + PAGE_ALIGN,
sizeof(unsigned char));
if (p == NULL)
return NULL;
@@ -841,6 +877,14 @@ voidpf ZLIB_INTERNAL dfltcc_alloc_window(strm, items, size)
return w;
}
+void ZLIB_INTERNAL dfltcc_copy_window(dest, src, n)
+ void *dest;
+ const void *src;
+ size_t n;
+{
+ memcpy(dest, src, MAX(n, HB_SIZE));
+}
+
void ZLIB_INTERNAL dfltcc_free_window(strm, w)
z_streamp strm;
voidpf w;
@@ -951,6 +995,24 @@ local void append_history(param, history, buf, count)
}
}
+local void get_history OF((struct dfltcc_param_v0 FAR *param,
+ const Bytef *history,
+ Bytef *buf));
+local void get_history(param, history, buf)
+ struct dfltcc_param_v0 FAR *param;
+ const Bytef *history;
+ Bytef *buf;
+{
+ if (param->ho + param->hl <= HB_SIZE)
+ /* Circular history buffer does not wrap - copy one chunk */
+ memcpy(buf, history + param->ho, param->hl);
+ else {
+ /* Circular history buffer wraps - copy two chunks */
+ memcpy(buf, history + param->ho, HB_SIZE - param->ho);
+ memcpy(buf + HB_SIZE - param->ho, history, param->ho + param->hl - HB_SIZE);
+ }
+}
+
int ZLIB_INTERNAL dfltcc_deflate_set_dictionary(strm, dictionary, dict_length)
z_streamp strm;
const Bytef *dictionary;
@@ -975,20 +1037,43 @@ int ZLIB_INTERNAL dfltcc_deflate_get_dictionary(strm, dictionary, dict_length)
struct dfltcc_state FAR *dfltcc_state = GET_DFLTCC_STATE(state);
struct dfltcc_param_v0 FAR *param = &dfltcc_state->param;
- if (dictionary) {
- if (param->ho + param->hl <= HB_SIZE)
- /* Circular history buffer does not wrap - copy one chunk */
- zmemcpy(dictionary, state->window + param->ho, param->hl);
- else {
- /* Circular history buffer wraps - copy two chunks */
- zmemcpy(dictionary,
- state->window + param->ho,
- HB_SIZE - param->ho);
- zmemcpy(dictionary + HB_SIZE - param->ho,
- state->window,
- param->ho + param->hl - HB_SIZE);
- }
+ if (dictionary)
+ get_history(param, state->window, dictionary);
+ if (dict_length)
+ *dict_length = param->hl;
+ return Z_OK;
+}
+
+int ZLIB_INTERNAL dfltcc_inflate_set_dictionary(strm, dictionary, dict_length)
+ z_streamp strm;
+ const Bytef *dictionary;
+ uInt dict_length;
+{
+ struct inflate_state *state = (struct inflate_state *)strm->state;
+ struct dfltcc_state *dfltcc_state = GET_DFLTCC_STATE(state);
+ struct dfltcc_param_v0 *param = &dfltcc_state->param;
+
+ if (inflate_ensure_window(state)) {
+ state->mode = MEM;
+ return Z_MEM_ERROR;
}
+
+ append_history(param, state->window, dictionary, dict_length);
+ state->havedict = 1;
+ return Z_OK;
+}
+
+int ZLIB_INTERNAL dfltcc_inflate_get_dictionary(strm, dictionary, dict_length)
+ z_streamp strm;
+ Bytef *dictionary;
+ uInt *dict_length;
+{
+ struct inflate_state *state = (struct inflate_state *)strm->state;
+ struct dfltcc_state *dfltcc_state = GET_DFLTCC_STATE(state);
+ struct dfltcc_param_v0 *param = &dfltcc_state->param;
+
+ if (dictionary && state->window)
+ get_history(param, state->window, dictionary);
if (dict_length)
*dict_length = param->hl;
return Z_OK;
--- a/contrib/s390/dfltcc.h
+++ b/contrib/s390/dfltcc.h
@@ -11,6 +11,8 @@ void ZLIB_INTERNAL dfltcc_copy_state OF((voidpf dst, const voidpf src,
void ZLIB_INTERNAL dfltcc_reset OF((z_streamp strm, uInt size));
voidpf ZLIB_INTERNAL dfltcc_alloc_window OF((z_streamp strm, uInt items,
uInt size));
+void ZLIB_INTERNAL dfltcc_copy_window OF((void *dest, const void *src,
+ size_t n));
void ZLIB_INTERNAL dfltcc_free_window OF((z_streamp strm, voidpf w));
#define DFLTCC_BLOCK_HEADER_BITS 3
#define DFLTCC_HLITS_COUNT_BITS 5
@@ -44,11 +46,18 @@ dfltcc_inflate_action ZLIB_INTERNAL dfltcc_inflate OF((z_streamp strm,
int flush, int *ret));
int ZLIB_INTERNAL dfltcc_was_inflate_used OF((z_streamp strm));
int ZLIB_INTERNAL dfltcc_inflate_disable OF((z_streamp strm));
+int ZLIB_INTERNAL dfltcc_inflate_set_dictionary OF((z_streamp strm,
+ const Bytef *dictionary,
+ uInt dict_length));
+int ZLIB_INTERNAL dfltcc_inflate_get_dictionary OF((z_streamp strm,
+ Bytef *dictionary,
+ uInt* dict_length));
#define ZALLOC_STATE dfltcc_alloc_state
#define ZFREE_STATE ZFREE
#define ZCOPY_STATE dfltcc_copy_state
#define ZALLOC_WINDOW dfltcc_alloc_window
+#define ZCOPY_WINDOW dfltcc_copy_window
#define ZFREE_WINDOW dfltcc_free_window
#define TRY_FREE_WINDOW dfltcc_free_window
#define INFLATE_RESET_KEEP_HOOK(strm) \
@@ -77,5 +86,15 @@ int ZLIB_INTERNAL dfltcc_inflate_disable OF((z_streamp strm));
do { \
if (dfltcc_was_inflate_used((strm))) return Z_STREAM_ERROR; \
} while (0)
+#define INFLATE_SET_DICTIONARY_HOOK(strm, dict, dict_len) \
+ do { \
+ if (dfltcc_can_inflate(strm)) \
+ return dfltcc_inflate_set_dictionary(strm, dict, dict_len); \
+ } while (0)
+#define INFLATE_GET_DICTIONARY_HOOK(strm, dict, dict_len) \
+ do { \
+ if (dfltcc_can_inflate(strm)) \
+ return dfltcc_inflate_get_dictionary(strm, dict, dict_len); \
+ } while (0)
#endif
\ No newline at end of file
diff --git a/inflate.c b/inflate.c
index 3750152..a0e2169 100644
--- a/inflate.c
+++ b/inflate.c
@@ -93,6 +93,7 @@
#define ZFREE_STATE ZFREE
#define ZCOPY_STATE zmemcpy
#define ZALLOC_WINDOW ZALLOC
+#define ZCOPY_WINDOW zmemcpy
#define ZFREE_WINDOW ZFREE
#define INFLATE_RESET_KEEP_HOOK(strm) do {} while (0)
#define INFLATE_PRIME_HOOK(strm, bits, value) do {} while (0)
@@ -101,6 +102,8 @@
#define INFLATE_NEED_UPDATEWINDOW(strm) 1
#define INFLATE_MARK_HOOK(strm) do {} while (0)
#define INFLATE_SYNC_POINT_HOOK(strm) do {} while (0)
+#define INFLATE_SET_DICTIONARY_HOOK(strm, dict, dict_len) do {} while (0)
+#define INFLATE_GET_DICTIONARY_HOOK(strm, dict, dict_len) do {} while (0)
#endif
#ifdef MAKEFIXED
@@ -1330,6 +1333,8 @@ uInt *dictLength;
if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
+ INFLATE_GET_DICTIONARY_HOOK(strm, dictionary, dictLength);
+
/* copy dictionary */
if (state->whave && dictionary != Z_NULL) {
zmemcpy(dictionary, state->window + state->wnext,
@@ -1365,6 +1370,8 @@ uInt dictLength;
return Z_DATA_ERROR;
}
+ INFLATE_SET_DICTIONARY_HOOK(strm, dictionary, dictLength);
+
/* copy dictionary to window using updatewindow(), which will amend the
existing dictionary if appropriate */
ret = updatewindow(strm, dictionary + dictLength, dictLength);
@@ -1529,8 +1536,7 @@ z_streamp source;
}
copy->next = copy->codes + (state->next - state->codes);
if (window != Z_NULL) {
- wsize = 1U << state->wbits;
- zmemcpy(window, state->window, wsize);
+ ZCOPY_WINDOW(window, state->window, 1U << state->wbits);
}
copy->window = window;
dest->state = (struct internal_state FAR *)copy;

69
SOURCES/zlib-1.2.11-Limit-hash-table-inserts.patch
Unescape View File

@ -0,0 +1,69 @@
From 2d80d3f6b52f9fa454c26c89d2d6a1790e1cecb0 Mon Sep 17 00:00:00 2001
From: Mark Adler <madler@alumni.caltech.edu>
Date: Sat, 21 Jan 2017 01:50:26 -0800
Subject: [PATCH] Limit hash table inserts after switch from stored deflate.
This limits hash table inserts to the available data in the window
and to the sliding window size in deflate_stored(). The hash table
inserts are deferred until deflateParams() switches to a non-zero
compression level.
---
deflate.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/deflate.c b/deflate.c
index 20bda4f..d368b25 100644
--- a/deflate.c
+++ b/deflate.c
@@ -1513,6 +1513,8 @@ local void fill_window(s)
s->match_start -= wsize;
s->strstart -= wsize; /* we now have strstart >= MAX_DIST */
s->block_start -= (long) wsize;
+ if (s->insert > s->strstart)
+ s->insert = s->strstart;
slide_hash(s);
more += wsize;
}
@@ -1742,6 +1744,7 @@ local block_state deflate_stored(s, flush)
s->matches = 2; /* clear hash */
zmemcpy(s->window, s->strm->next_in - s->w_size, s->w_size);
s->strstart = s->w_size;
+ s->insert = s->strstart;
}
else {
if (s->window_size - s->strstart <= used) {
@@ -1750,12 +1753,14 @@ local block_state deflate_stored(s, flush)
zmemcpy(s->window, s->window + s->w_size, s->strstart);
if (s->matches < 2)
s->matches++; /* add a pending slide_hash() */
+ if (s->insert > s->strstart)
+ s->insert = s->strstart;
}
zmemcpy(s->window + s->strstart, s->strm->next_in - used, used);
s->strstart += used;
+ s->insert += MIN(used, s->w_size - s->insert);
}
s->block_start = s->strstart;
- s->insert += MIN(used, s->w_size - s->insert);
}
if (s->high_water < s->strstart)
s->high_water = s->strstart;
@@ -1779,12 +1784,15 @@ local block_state deflate_stored(s, flush)
if (s->matches < 2)
s->matches++; /* add a pending slide_hash() */
have += s->w_size; /* more space now */
+ if (s->insert > s->strstart)
+ s->insert = s->strstart;
}
if (have > s->strm->avail_in)
have = s->strm->avail_in;
if (have) {
read_buf(s->strm, s->window + s->strstart, have);
s->strstart += have;
+ s->insert += MIN(have, s->w_size - s->insert);
}
if (s->high_water < s->strstart)
s->high_water = s->strstart;
--
2.39.1

282
SOURCES/zlib-1.2.11-Preparation-for-Power-optimizations.patch
Unescape View File

@ -0,0 +1,282 @@
From 14730a26e830eb2b09d1f7097910616f23c1476e Mon Sep 17 00:00:00 2001
From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Thu, 2 Feb 2023 19:40:32 +0100
Subject: [PATCH] 0001-PATCH-Preparation-for-Power-optimizations.patch
---
CMakeLists.txt | 67 ++++++++++++++++++++++++++++++++++++++++++
configure | 66 +++++++++++++++++++++++++++++++++++++++++
contrib/README.contrib | 8 +++++
contrib/gcc/zifunc.h | 60 +++++++++++++++++++++++++++++++++++++
contrib/power/power.h | 4 +++
5 files changed, 205 insertions(+)
create mode 100644 contrib/gcc/zifunc.h
create mode 100644 contrib/power/power.h
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0fe939d..e762023 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,6 +7,7 @@ set(VERSION "1.2.11")
option(ASM686 "Enable building i686 assembly implementation")
option(AMD64 "Enable building amd64 assembly implementation")
+option(POWER "Enable building power implementation")
set(INSTALL_BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation directory for executables")
set(INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation directory for libraries")
@@ -140,6 +141,72 @@ if(CMAKE_COMPILER_IS_GNUCC)
add_definitions(-DASMV)
set_source_files_properties(${ZLIB_ASMS} PROPERTIES LANGUAGE C COMPILE_FLAGS -DNO_UNDERLINE)
endif()
+
+ # test to see if we can use a GNU indirect function to detect and load optimized code at runtime
+ CHECK_C_SOURCE_COMPILES("
+ static int test_ifunc_native(void)
+ {
+ return 1;
+ }
+ static int (*(check_ifunc_native(void)))(void)
+ {
+ return test_ifunc_native;
+ }
+ int test_ifunc(void) __attribute__ ((ifunc (\"check_ifunc_native\")));
+ int main(void)
+ {
+ return 0;
+ }
+ " HAS_C_ATTR_IFUNC)
+
+ if(HAS_C_ATTR_IFUNC)
+ add_definitions(-DHAVE_IFUNC)
+ set(ZLIB_PRIVATE_HDRS ${ZLIB_PRIVATE_HDRS} contrib/gcc/zifunc.h)
+ endif()
+
+ if(POWER)
+ # Test to see if we can use the optimizations for Power
+ CHECK_C_SOURCE_COMPILES("
+ #ifndef _ARCH_PPC
+ #error \"Target is not Power\"
+ #endif
+ #ifndef __BUILTIN_CPU_SUPPORTS__
+ #error \"Target doesn't support __builtin_cpu_supports()\"
+ #endif
+ int main() { return 0; }
+ " HAS_POWER_SUPPORT)
+
+ if(HAS_POWER_SUPPORT AND HAS_C_ATTR_IFUNC)
+ add_definitions(-DZ_POWER_OPT)
+
+ set(CMAKE_REQUIRED_FLAGS -mcpu=power8)
+ CHECK_C_SOURCE_COMPILES("int main(void){return 0;}" POWER8)
+
+ if(POWER8)
+ add_definitions(-DZ_POWER8)
+ set(ZLIB_POWER8 )
+
+ set_source_files_properties(
+ ${ZLIB_POWER8}
+ PROPERTIES COMPILE_FLAGS -mcpu=power8)
+ endif()
+
+ set(CMAKE_REQUIRED_FLAGS -mcpu=power9)
+ CHECK_C_SOURCE_COMPILES("int main(void){return 0;}" POWER9)
+
+ if(POWER9)
+ add_definitions(-DZ_POWER9)
+ set(ZLIB_POWER9 )
+
+ set_source_files_properties(
+ ${ZLIB_POWER9}
+ PROPERTIES COMPILE_FLAGS -mcpu=power9)
+ endif()
+
+ set(ZLIB_PRIVATE_HDRS ${ZLIB_PRIVATE_HDRS} contrib/power/power.h)
+ set(ZLIB_SRCS ${ZLIB_SRCS} ${ZLIB_POWER8} ${ZLIB_POWER9})
+ endif()
+ endif()
endif()
if(MSVC)
diff --git a/configure b/configure
index d026b35..0538d58 100755
--- a/configure
+++ b/configure
@@ -846,6 +846,72 @@ else
echo "Checking for sys/sdt.h ... No." | tee -a configure.log
fi
+# test to see if we can use a gnu indirection function to detect and load optimized code at runtime
+echo >> configure.log
+cat > $test.c <<EOF
+static int test_ifunc_native(void)
+{
+ return 1;
+}
+
+static int (*(check_ifunc_native(void)))(void)
+{
+ return test_ifunc_native;
+}
+
+int test_ifunc(void) __attribute__ ((ifunc ("check_ifunc_native")));
+EOF
+
+if tryboth $CC -c $CFLAGS $test.c; then
+ SFLAGS="${SFLAGS} -DHAVE_IFUNC"
+ CFLAGS="${CFLAGS} -DHAVE_IFUNC"
+ echo "Checking for attribute(ifunc) support... Yes." | tee -a configure.log
+else
+ echo "Checking for attribute(ifunc) support... No." | tee -a configure.log
+fi
+
+# Test to see if we can use the optimizations for Power
+echo >> configure.log
+cat > $test.c <<EOF
+#ifndef _ARCH_PPC
+ #error "Target is not Power"
+#endif
+#ifndef HAVE_IFUNC
+ #error "Target doesn't support ifunc"
+#endif
+#ifndef __BUILTIN_CPU_SUPPORTS__
+ #error "Target doesn't support __builtin_cpu_supports()"
+#endif
+EOF
+
+if tryboth $CC -c $CFLAGS $test.c; then
+ echo "int main(void){return 0;}" > $test.c
+
+ if tryboth $CC -c $CFLAGS -mcpu=power8 $test.c; then
+ POWER8="-DZ_POWER8"
+ PIC_OBJC="${PIC_OBJC}"
+ OBJC="${OBJC}"
+ echo "Checking for -mcpu=power8 support... Yes." | tee -a configure.log
+ else
+ echo "Checking for -mcpu=power8 support... No." | tee -a configure.log
+ fi
+
+ if tryboth $CC -c $CFLAGS -mcpu=power9 $test.c; then
+ POWER9="-DZ_POWER9"
+ PIC_OBJC="${PIC_OBJC}"
+ OBJC="${OBJC}"
+ echo "Checking for -mcpu=power9 support... Yes." | tee -a configure.log
+ else
+ echo "Checking for -mcpu=power9 support... No." | tee -a configure.log
+ fi
+
+ SFLAGS="${SFLAGS} ${POWER8} ${POWER9} -DZ_POWER_OPT"
+ CFLAGS="${CFLAGS} ${POWER8} ${POWER9} -DZ_POWER_OPT"
+ echo "Checking for Power optimizations support... Yes." | tee -a configure.log
+else
+ echo "Checking for Power optimizations support... No." | tee -a configure.log
+fi
+
# show the results in the log
echo >> configure.log
echo ALL = $ALL >> configure.log
diff --git a/contrib/README.contrib b/contrib/README.contrib
index b4d3b18..2a53f90 100644
--- a/contrib/README.contrib
+++ b/contrib/README.contrib
@@ -19,6 +19,10 @@ asm686/ by Brian Raiter <breadbox@muppetlabs.com>
blast/ by Mark Adler <madler@alumni.caltech.edu>
Decompressor for output of PKWare Data Compression Library (DCL)
+gcc/ by Matheus Castanho <msc@linux.ibm.com>
+ and Rogerio Alves <rcardoso@linux.ibm.com>
+ Optimization helpers using GCC-specific extensions
+
delphi/ by Cosmin Truta <cosmint@cs.ubbcluj.ro>
Support for Delphi and C++ Builder
@@ -63,6 +67,10 @@ minizip/ by Gilles Vollant <info@winimage.com>
pascal/ by Bob Dellaca <bobdl@xtra.co.nz> et al.
Support for Pascal
+power/ by Matheus Castanho <msc@linux.ibm.com>
+ and Rogerio Alves <rcardoso@linux.ibm.com>
+ Optimized functions for Power processors
+
puff/ by Mark Adler <madler@alumni.caltech.edu>
Small, low memory usage inflate. Also serves to provide an
unambiguous description of the deflate format.
diff --git a/contrib/gcc/zifunc.h b/contrib/gcc/zifunc.h
new file mode 100644
index 0000000..daf4fe4
--- /dev/null
+++ b/contrib/gcc/zifunc.h
@@ -0,0 +1,60 @@
+/* Copyright (C) 2019 Matheus Castanho <msc@linux.ibm.com>, IBM
+ * 2019 Rogerio Alves <rogerio.alves@ibm.com>, IBM
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#ifndef Z_IFUNC_H_
+#define Z_IFUNC_H_
+
+/* Helpers for arch optimizations */
+
+#define Z_IFUNC(fname) \
+ typeof(fname) fname __attribute__ ((ifunc (#fname "_resolver"))); \
+ local typeof(fname) *fname##_resolver(void)
+/* This is a helper macro to declare a resolver for an indirect function
+ * (ifunc). Let's say you have function
+ *
+ * int foo (int a);
+ *
+ * for which you want to provide different implementations, for example:
+ *
+ * int foo_clever (int a) {
+ * ... clever things ...
+ * }
+ *
+ * int foo_smart (int a) {
+ * ... smart things ...
+ * }
+ *
+ * You will have to declare foo() as an indirect function and also provide a
+ * resolver for it, to choose between foo_clever() and foo_smart() based on
+ * some criteria you define (e.g. processor features).
+ *
+ * Since most likely foo() has a default implementation somewhere in zlib, you
+ * may have to rename it so the 'foo' symbol can be used by the ifunc without
+ * conflicts.
+ *
+ * #define foo foo_default
+ * int foo (int a) {
+ * ...
+ * }
+ * #undef foo
+ *
+ * Now you just have to provide a resolver function to choose which function
+ * should be used (decided at runtime on the first call to foo()):
+ *
+ * Z_IFUNC(foo) {
+ * if (... some condition ...)
+ * return foo_clever;
+ *
+ * if (... other condition ...)
+ * return foo_smart;
+ *
+ * return foo_default;
+ * }
+ *
+ * All calls to foo() throughout the code can remain untouched, all the magic
+ * will be done by the linker using the resolver function.
+ */
+
+#endif /* Z_IFUNC_H_ */
diff --git a/contrib/power/power.h b/contrib/power/power.h
new file mode 100644
index 0000000..b42c7d6
--- /dev/null
+++ b/contrib/power/power.h
@@ -0,0 +1,4 @@
+/* Copyright (C) 2019 Matheus Castanho <msc@linux.ibm.com>, IBM
+ * 2019 Rogerio Alves <rogerio.alves@ibm.com>, IBM
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
--
2.39.1

65
SOURCES/zlib-1.2.11-covscan-issues-rhel9.patch
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@ -0,0 +1,65 @@
From 1e56dd1e7285d3026092ba794078edb290b4c1b1 Mon Sep 17 00:00:00 2001
From: Ondrej Dubaj <odubaj@redhat.com>
Date: Mon, 15 Mar 2021 13:06:35 +0100
Subject: [PATCH] fixed isues found by covscan
---
contrib/minizip/mztools.c | 8 ++++++++
contrib/minizip/zip.c | 4 ++--
deflate.c | 5 +++--
3 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/contrib/minizip/mztools.c b/contrib/minizip/mztools.c
index 96891c2..1197928 100644
--- a/contrib/minizip/mztools.c
+++ b/contrib/minizip/mztools.c
@@ -286,6 +286,14 @@ uLong* bytesRecovered;
}
} else {
err = Z_STREAM_ERROR;
+ if(fpZip != NULL)
+ fclose(fpZip);
+
+ if(fpOut != NULL)
+ fclose(fpOut);
+
+ if(fpOutCD != NULL)
+ fclose(fpOutCD);
}
return err;
}
diff --git a/contrib/minizip/zip.c b/contrib/minizip/zip.c
index 44e88a9..a753c17 100644
--- a/contrib/minizip/zip.c
+++ b/contrib/minizip/zip.c
@@ -526,8 +526,8 @@ local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_f
break;
}
- if (uPosFound!=0)
- break;
+ if (uPosFound!=0)
+ break;
}
TRYFREE(buf);
return uPosFound;
diff --git a/deflate.c b/deflate.c
index 085abbe..3963e79 100644
--- a/deflate.c
+++ b/deflate.c
@@ -203,9 +203,10 @@ local const config configuration_table[10] = {
* Initialize the hash table (avoiding 64K overflow for 16 bit systems).
* prev[] will be initialized on the fly.
*/
-#define CLEAR_HASH(s) \
+#define CLEAR_HASH(s) do { \
s->head[s->hash_size-1] = NIL; \
- zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));
+ zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); \
+} while (0)
/* ===========================================================================
* Slide the hash table when sliding the window down (could be avoided with 32
--
2.26.0

25
SOURCES/zlib-1.2.11-covscan-issues.patch
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@ -0,0 +1,25 @@
From f776e1609cc63bf486634ee9bc6226dac2c0d2f3 Mon Sep 17 00:00:00 2001
From: Ondrej Dubaj <odubaj@redhat.com>
Date: Tue, 15 Oct 2019 11:27:15 +0200
Subject: [PATCH] fixed covscan issues
---
crc32.c | 2 +-
deflate.c | 2 +-
test/crc32_test.c | 8 ++++----
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/deflate.c b/deflate.c
index 089285a..9b09718 100644
--- a/deflate.c
+++ b/deflate.c
@@ -1015,7 +1015,7 @@ int ZEXPORT deflate (strm, flush)
*/
if (strm->avail_in != 0 || s->lookahead != 0 ||
(flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
- block_state bstate;
+ block_state bstate = 0;
bstate = DEFLATE_HOOK(strm, flush, &bstate) ? bstate :
s->level == 0 ? deflate_stored(s, flush) :

35
SOURCES/zlib-1.2.11-cve-2022-37434.patch
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@ -0,0 +1,35 @@
From eff308af425b67093bab25f80f1ae950166bece1 Mon Sep 17 00:00:00 2001
From: Mark Adler <fork@madler.net>
Date: Sat, 30 Jul 2022 15:51:11 -0700
Subject: [PATCH] Fix a bug when getting a gzip header extra field with
inflate().
If the extra field was larger than the space the user provided with
inflateGetHeader(), and if multiple calls of inflate() delivered
the extra header data, then there could be a buffer overflow of the
provided space. This commit assures that provided space is not
exceeded.
---
inflate.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/inflate.c b/inflate.c
index 7be8c63..7a72897 100644
--- a/inflate.c
+++ b/inflate.c
@@ -763,9 +763,10 @@ int flush;
copy = state->length;
if (copy > have) copy = have;
if (copy) {
+ len = state->head->extra_len - state->length;
if (state->head != Z_NULL &&
- state->head->extra != Z_NULL) {
- len = state->head->extra_len - state->length;
+ state->head->extra != Z_NULL &&
+ len < state->head->extra_max) {
zmemcpy(state->head->extra + len, next,
len + copy > state->head->extra_max ?
state->head->extra_max - len : copy);
--
2.35.3

32
SOURCES/zlib-1.2.11-cve-2022-37434_2.patch
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@ -0,0 +1,32 @@
From 1eb7682f845ac9e9bf9ae35bbfb3bad5dacbd91d Mon Sep 17 00:00:00 2001
From: Mark Adler <fork@madler.net>
Date: Mon, 8 Aug 2022 10:50:09 -0700
Subject: [PATCH] Fix extra field processing bug that dereferences NULL
state->head.
The recent commit to fix a gzip header extra field processing bug
introduced the new bug fixed here.
---
inflate.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/inflate.c b/inflate.c
index 7a72897..2a3c4fe 100644
--- a/inflate.c
+++ b/inflate.c
@@ -763,10 +763,10 @@ int flush;
copy = state->length;
if (copy > have) copy = have;
if (copy) {
- len = state->head->extra_len - state->length;
if (state->head != Z_NULL &&
state->head->extra != Z_NULL &&
- len < state->head->extra_max) {
+ (len = state->head->extra_len - state->length) <
+ state->head->extra_max) {
zmemcpy(state->head->extra + len, next,
len + copy > state->head->extra_max ?
state->head->extra_max - len : copy);
--
2.35.3

45
SOURCES/zlib-1.2.11-inflateSyncPoint-return-value-fix.patch
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@ -0,0 +1,45 @@
Subject: [PATCH] Fixed inflateSyncPoint() bad return value on z15
---
contrib/s390/dfltcc.h | 4 ++++
inflate.c | 2 ++
2 files changed, 6 insertions(+)
diff --git a/contrib/s390/dfltcc.h b/contrib/s390/dfltcc.h
index 574e84c..7960626 100644
--- a/contrib/s390/dfltcc.h
+++ b/contrib/s390/dfltcc.h
@@ -51,5 +51,9 @@ int ZLIB_INTERNAL dfltcc_inflate_disable OF((z_streamp strm));
do { \
if (dfltcc_was_inflate_used((strm))) return -(1L << 16); \
} while (0)
+#define INFLATE_SYNC_POINT_HOOK(strm) \
+ do { \
+ if (dfltcc_was_inflate_used((strm))) return Z_STREAM_ERROR; \
+ } while (0)
#endif
\ No newline at end of file
diff --git a/inflate.c b/inflate.c
index f77c2ae..596034c 100644
--- a/inflate.c
+++ b/inflate.c
@@ -100,6 +100,7 @@
#define INFLATE_NEED_CHECKSUM(strm) 1
#define INFLATE_NEED_UPDATEWINDOW(strm) 1
#define INFLATE_MARK_HOOK(strm) do {} while (0)
+#define INFLATE_SYNC_POINT_HOOK(strm) do {} while (0)
#endif
#ifdef MAKEFIXED
@@ -1483,6 +1484,7 @@ z_streamp strm;
struct inflate_state FAR *state;
if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+ INFLATE_SYNC_POINT_HOOK(strm);
state = (struct inflate_state FAR *)strm->state;
return state->mode == STORED && state->bits == 0;
}
--
2.26.0

41
SOURCES/zlib-1.2.11-optimized-s390.patch
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@ -0,0 +1,41 @@
diff --git a/deflate.c b/deflate.c
index 1ec7614..b724c8d 100644
--- a/deflate.c
+++ b/deflate.c
@@ -1233,15 +1233,16 @@ local void lm_init (s)
/* For 80x86 and 680x0, an optimized version will be provided in match.asm or
* match.S. The code will be functionally equivalent.
*/
-local uInt longest_match(s, cur_match)
+local uInt longest_match(s, pcur_match)
deflate_state *s;
- IPos cur_match; /* current match */
+ IPos pcur_match; /* current match */
{
+ ptrdiff_t cur_match = pcur_match; /* extend to pointer width */
unsigned chain_length = s->max_chain_length;/* max hash chain length */
register Bytef *scan = s->window + s->strstart; /* current string */
register Bytef *match; /* matched string */
register int len; /* length of current match */
- int best_len = (int)s->prev_length; /* best match length so far */
+ ptrdiff_t best_len = s->prev_length; /* best match length so far */
int nice_match = s->nice_match; /* stop if match long enough */
IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
s->strstart - (IPos)MAX_DIST(s) : NIL;
@@ -1256,12 +1257,12 @@ local uInt longest_match(s, cur_match)
* Try with and without -DUNALIGNED_OK to check.
*/
register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;
- register ush scan_start = *(ushf*)scan;
- register ush scan_end = *(ushf*)(scan+best_len-1);
+ register uInt scan_start = *(ushf*)scan;
+ register uInt scan_end = *(ushf*)(scan+best_len-1);
#else
register Bytef *strend = s->window + s->strstart + MAX_MATCH;
- register Byte scan_end1 = scan[best_len-1];
- register Byte scan_end = scan[best_len];
+ register uInt scan_end1 = scan[best_len-1];
+ register uInt scan_end = scan[best_len];
#endif
/* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.

70
SOURCES/zlib-1.2.11-permit-deflateParams-change.patch
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@ -0,0 +1,70 @@
From d09bb1ab8ef9bb91457c0ead09589e8807489260 Mon Sep 17 00:00:00 2001
From: Ondrej Dubaj <odubaj@redhat.com>
Date: Thu, 6 Aug 2020 08:09:53 +0200
Subject: [PATCH] Permit a deflateParams() parameter change.
This change allows a parameter change even if the input data has
not all been compressed and copied to the application output
buffer, so long as all of the input data has been compressed to
the internal pending output buffer. This also allows an immediate
deflateParams change so long as there have been no deflate calls
since initialization or reset.
---
deflate.c | 6 +++---
zlib.h | 11 ++++++-----
2 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/deflate.c b/deflate.c
index 9705c1c..f3c9924 100644
--- a/deflate.c
+++ b/deflate.c
@@ -509,7 +509,7 @@ int ZEXPORT deflateResetKeep (strm)
s->wrap == 2 ? crc32(0L, Z_NULL, 0) :
#endif
adler32(0L, Z_NULL, 0);
- s->last_flush = Z_NO_FLUSH;
+ s->last_flush = -2;
_tr_init(s);
@@ -606,13 +606,13 @@ int ZEXPORT deflateParams(strm, level, strategy)
func = configuration_table[s->level].func;
if ((strategy != s->strategy || func != configuration_table[level].func ||
- hook_flush != Z_NO_FLUSH) && s->high_water) {
+ hook_flush != Z_NO_FLUSH) && s->last_flush != -2) {
/* Flush the last buffer: */
int err = deflate(strm, RANK(hook_flush) > RANK(Z_BLOCK) ?
hook_flush : Z_BLOCK);
if (err == Z_STREAM_ERROR)
return err;
- if (strm->avail_out == 0)
+ if (strm->avail_in || (s->strstart - s->block_start) + s->lookahead)
return Z_BUF_ERROR;
}
if (s->level != level) {
diff --git a/zlib.h b/zlib.h
index f09cdaf..001624e 100644
--- a/zlib.h
+++ b/zlib.h
@@ -712,11 +712,12 @@ ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
used to switch between compression and straight copy of the input data, or
to switch to a different kind of input data requiring a different strategy.
If the compression approach (which is a function of the level) or the
- strategy is changed, and if any input has been consumed in a previous
- deflate() call, then the input available so far is compressed with the old
- level and strategy using deflate(strm, Z_BLOCK). There are three approaches
- for the compression levels 0, 1..3, and 4..9 respectively. The new level
- and strategy will take effect at the next call of deflate().
+ strategy is changed, and if there have been any deflate() calls since the
+ state was initialized or reset, then the input available so far is
+ compressed with the old level and strategy using deflate(strm, Z_BLOCK).
+ There are three approaches for the compression levels 0, 1..3, and 4..9
+ respectively. The new level and strategy will take effect at the next call
+ of deflate().
If a deflate(strm, Z_BLOCK) is performed by deflateParams(), and it does
not have enough output space to complete, then the parameter change will not
--
2.26.0

428
SOURCES/zlib-1.2.11-s390x-vectorize-crc32.patch
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@ -0,0 +1,428 @@
From cfbf97cb54a6d06a80e86c85869331e4e2871129 Mon Sep 17 00:00:00 2001
From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Thu, 19 Mar 2020 11:52:03 +0100
Subject: [PATCH] s390x: vectorize crc32
Use vector extensions when compiling for s390x and binutils knows
about them. At runtime, check whether kernel supports vector
extensions (it has to be not just the CPU, but also the kernel) and
choose between the regular and the vectorized implementations.
---
Makefile.in | 9 ++
configure | 28 +++++
contrib/gcc/zifunc.h | 21 +++-
contrib/s390/crc32-vx.c | 195 ++++++++++++++++++++++++++++++++
contrib/s390/crc32_z_resolver.c | 41 +++++++
crc32.c | 11 +-
6 files changed, 301 insertions(+), 4 deletions(-)
create mode 100644 contrib/s390/crc32-vx.c
create mode 100644 contrib/s390/crc32_z_resolver.c
diff --git a/Makefile.in b/Makefile.in
index d392616..63f76da 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -29,6 +29,7 @@ LDFLAGS=
TEST_LDFLAGS=-L. libz.a
LDSHARED=$(CC)
CPP=$(CC) -E
+VGFMAFLAG=
STATICLIB=libz.a
SHAREDLIB=libz.so
@@ -179,6 +180,9 @@ crc32.o: $(SRCDIR)crc32.c
crc32_z_power8.o: $(SRCDIR)contrib/power/crc32_z_power8.c
$(CC) $(CFLAGS) -mcpu=power8 $(ZINC) -c -o $@ $(SRCDIR)contrib/power/crc32_z_power8.c
+crc32-vx.o: $(SRCDIR)contrib/s390/crc32-vx.c
+ $(CC) $(CFLAGS) $(VGFMAFLAG) $(ZINC) -c -o $@ $(SRCDIR)contrib/s390/crc32-vx.c
+
deflate.o: $(SRCDIR)deflate.c
$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)deflate.c
@@ -229,6 +233,11 @@ crc32.lo: $(SRCDIR)crc32.c
$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/crc32.o $(SRCDIR)crc32.c
-@mv objs/crc32.o $@
+crc32-vx.lo: $(SRCDIR)contrib/s390/crc32-vx.c
+ -@mkdir objs 2>/dev/null || test -d objs
+ $(CC) $(SFLAGS) $(VGFMAFLAG) $(ZINC) -DPIC -c -o objs/crc32-vx.o $(SRCDIR)contrib/s390/crc32-vx.c
+ -@mv objs/crc32-vx.o $@
+
crc32_z_power8.lo: $(SRCDIR)contrib/power/crc32_z_power8.c
-@mkdir objs 2>/dev/null || test -d objs
$(CC) $(SFLAGS) -mcpu=power8 $(ZINC) -DPIC -c -o objs/crc32_z_power8.o $(SRCDIR)contrib/power/crc32_z_power8.c
diff --git a/configure b/configure
index e37dac8..a4606b8 100755
--- a/configure
+++ b/configure
@@ -915,6 +915,32 @@ else
echo "Checking for Power optimizations support... No." | tee -a configure.log
fi
+# check if we are compiling for s390 and binutils support vector extensions
+VGFMAFLAG=-march=z13
+cat > $test.c <<EOF
+#ifndef __s390__
+#error
+#endif
+EOF
+if try $CC -c $CFLAGS $VGFMAFLAG $test.c; then
+ CFLAGS="$CFLAGS -DHAVE_S390X_VX"
+ SFLAGS="$SFLAGS -DHAVE_S390X_VX"
+ OBJC="$OBJC crc32-vx.o"
+ PIC_OBJC="$PIC_OBJC crc32-vx.lo"
+ echo "Checking for s390 vector extensions... Yes." | tee -a configure.log
+
+ for flag in -mzarch -fzvector; do
+ if try $CC -c $CFLAGS $VGFMAFLAG $flag $test.c; then
+ VGFMAFLAG="$VGFMAFLAG $flag"
+ echo "Checking for $flag... Yes." | tee -a configure.log
+ else
+ echo "Checking for $flag... No." | tee -a configure.log
+ fi
+ done
+else
+ echo "Checking for s390 vector extensions... No." | tee -a configure.log
+fi
+
# show the results in the log
echo >> configure.log
echo ALL = $ALL >> configure.log
@@ -947,6 +973,7 @@ echo mandir = $mandir >> configure.log
echo prefix = $prefix >> configure.log
echo sharedlibdir = $sharedlibdir >> configure.log
echo uname = $uname >> configure.log
+echo VGFMAFLAG = $VGFMAFLAG >> configure.log
# udpate Makefile with the configure results
sed < ${SRCDIR}Makefile.in "
@@ -956,6 +983,7 @@ sed < ${SRCDIR}Makefile.in "
/^LDFLAGS *=/s#=.*#=$LDFLAGS#
/^LDSHARED *=/s#=.*#=$LDSHARED#
/^CPP *=/s#=.*#=$CPP#
+/^VGFMAFLAG *=/s#=.*#=$VGFMAFLAG#
/^STATICLIB *=/s#=.*#=$STATICLIB#
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
diff --git a/contrib/gcc/zifunc.h b/contrib/gcc/zifunc.h
index daf4fe4..b62379e 100644
--- a/contrib/gcc/zifunc.h
+++ b/contrib/gcc/zifunc.h
@@ -8,9 +8,28 @@
/* Helpers for arch optimizations */
+#if defined(__clang__)
+#if __has_feature(coverage_sanitizer)
+#define Z_IFUNC_NO_SANCOV __attribute__((no_sanitize("coverage")))
+#else /* __has_feature(coverage_sanitizer) */
+#define Z_IFUNC_NO_SANCOV
+#endif /* __has_feature(coverage_sanitizer) */
+#else /* __clang__ */
+#define Z_IFUNC_NO_SANCOV
+#endif /* __clang__ */
+
+#ifdef __s390__
+#define Z_IFUNC_PARAMS unsigned long hwcap
+#define Z_IFUNC_ATTRS Z_IFUNC_NO_SANCOV
+#else /* __s390__ */
+#define Z_IFUNC_PARAMS void
+#define Z_IFUNC_ATTRS
+#endif /* __s390__ */
+
#define Z_IFUNC(fname) \
typeof(fname) fname __attribute__ ((ifunc (#fname "_resolver"))); \
- local typeof(fname) *fname##_resolver(void)
+ Z_IFUNC_ATTRS \
+ local typeof(fname) *fname##_resolver(Z_IFUNC_PARAMS)
/* This is a helper macro to declare a resolver for an indirect function
* (ifunc). Let's say you have function
*
diff --git a/contrib/s390/crc32-vx.c b/contrib/s390/crc32-vx.c
new file mode 100644
index 0000000..fa5387c
--- /dev/null
+++ b/contrib/s390/crc32-vx.c
@@ -0,0 +1,195 @@
+/*
+ * Hardware-accelerated CRC-32 variants for Linux on z Systems
+ *
+ * Use the z/Architecture Vector Extension Facility to accelerate the
+ * computing of bitreflected CRC-32 checksums.
+ *
+ * This CRC-32 implementation algorithm is bitreflected and processes
+ * the least-significant bit first (Little-Endian).
+ *
+ * This code was originally written by Hendrik Brueckner
+ * <brueckner@linux.vnet.ibm.com> for use in the Linux kernel and has been
+ * relicensed under the zlib license.
+ */
+
+#include "../../zutil.h"
+
+#include <stdint.h>
+#include <vecintrin.h>
+
+typedef unsigned char uv16qi __attribute__((vector_size(16)));
+typedef unsigned int uv4si __attribute__((vector_size(16)));
+typedef unsigned long long uv2di __attribute__((vector_size(16)));
+
+uint32_t crc32_le_vgfm_16(uint32_t crc, const unsigned char *buf, size_t len) {
+ /*
+ * The CRC-32 constant block contains reduction constants to fold and
+ * process particular chunks of the input data stream in parallel.
+ *
+ * For the CRC-32 variants, the constants are precomputed according to
+ * these definitions:
+ *
+ * R1 = [(x4*128+32 mod P'(x) << 32)]' << 1
+ * R2 = [(x4*128-32 mod P'(x) << 32)]' << 1
+ * R3 = [(x128+32 mod P'(x) << 32)]' << 1
+ * R4 = [(x128-32 mod P'(x) << 32)]' << 1
+ * R5 = [(x64 mod P'(x) << 32)]' << 1
+ * R6 = [(x32 mod P'(x) << 32)]' << 1
+ *
+ * The bitreflected Barret reduction constant, u', is defined as
+ * the bit reversal of floor(x**64 / P(x)).
+ *
+ * where P(x) is the polynomial in the normal domain and the P'(x) is the
+ * polynomial in the reversed (bitreflected) domain.
+ *
+ * CRC-32 (IEEE 802.3 Ethernet, ...) polynomials:
+ *
+ * P(x) = 0x04C11DB7
+ * P'(x) = 0xEDB88320
+ */
+ const uv16qi perm_le2be = {15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0}; /* BE->LE mask */
+ const uv2di r2r1 = {0x1C6E41596, 0x154442BD4}; /* R2, R1 */
+ const uv2di r4r3 = {0x0CCAA009E, 0x1751997D0}; /* R4, R3 */
+ const uv2di r5 = {0, 0x163CD6124}; /* R5 */
+ const uv2di ru_poly = {0, 0x1F7011641}; /* u' */
+ const uv2di crc_poly = {0, 0x1DB710641}; /* P'(x) << 1 */
+
+ /*
+ * Load the initial CRC value.
+ *
+ * The CRC value is loaded into the rightmost word of the
+ * vector register and is later XORed with the LSB portion
+ * of the loaded input data.
+ */
+ uv2di v0 = {0, 0};
+ v0 = (uv2di)vec_insert(crc, (uv4si)v0, 3);
+
+ /* Load a 64-byte data chunk and XOR with CRC */
+ uv2di v1 = vec_perm(((uv2di *)buf)[0], ((uv2di *)buf)[0], perm_le2be);
+ uv2di v2 = vec_perm(((uv2di *)buf)[1], ((uv2di *)buf)[1], perm_le2be);
+ uv2di v3 = vec_perm(((uv2di *)buf)[2], ((uv2di *)buf)[2], perm_le2be);
+ uv2di v4 = vec_perm(((uv2di *)buf)[3], ((uv2di *)buf)[3], perm_le2be);
+
+ v1 ^= v0;
+ buf += 64;
+ len -= 64;
+
+ while (len >= 64) {
+ /* Load the next 64-byte data chunk */
+ uv16qi part1 = vec_perm(((uv16qi *)buf)[0], ((uv16qi *)buf)[0], perm_le2be);
+ uv16qi part2 = vec_perm(((uv16qi *)buf)[1], ((uv16qi *)buf)[1], perm_le2be);
+ uv16qi part3 = vec_perm(((uv16qi *)buf)[2], ((uv16qi *)buf)[2], perm_le2be);
+ uv16qi part4 = vec_perm(((uv16qi *)buf)[3], ((uv16qi *)buf)[3], perm_le2be);
+
+ /*
+ * Perform a GF(2) multiplication of the doublewords in V1 with
+ * the R1 and R2 reduction constants in V0. The intermediate result
+ * is then folded (accumulated) with the next data chunk in PART1 and
+ * stored in V1. Repeat this step for the register contents
+ * in V2, V3, and V4 respectively.
+ */
+ v1 = (uv2di)vec_gfmsum_accum_128(r2r1, v1, part1);
+ v2 = (uv2di)vec_gfmsum_accum_128(r2r1, v2, part2);
+ v3 = (uv2di)vec_gfmsum_accum_128(r2r1, v3, part3);
+ v4 = (uv2di)vec_gfmsum_accum_128(r2r1, v4, part4);
+
+ buf += 64;
+ len -= 64;
+ }
+
+ /*
+ * Fold V1 to V4 into a single 128-bit value in V1. Multiply V1 with R3
+ * and R4 and accumulating the next 128-bit chunk until a single 128-bit
+ * value remains.
+ */
+ v1 = (uv2di)vec_gfmsum_accum_128(r4r3, v1, (uv16qi)v2);
+ v1 = (uv2di)vec_gfmsum_accum_128(r4r3, v1, (uv16qi)v3);
+ v1 = (uv2di)vec_gfmsum_accum_128(r4r3, v1, (uv16qi)v4);
+
+ while (len >= 16) {
+ /* Load next data chunk */
+ v2 = vec_perm(*(uv2di *)buf, *(uv2di *)buf, perm_le2be);
+
+ /* Fold next data chunk */
+ v1 = (uv2di)vec_gfmsum_accum_128(r4r3, v1, (uv16qi)v2);
+
+ buf += 16;
+ len -= 16;
+ }
+
+ /*
+ * Set up a vector register for byte shifts. The shift value must
+ * be loaded in bits 1-4 in byte element 7 of a vector register.
+ * Shift by 8 bytes: 0x40
+ * Shift by 4 bytes: 0x20
+ */
+ uv16qi v9 = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+ v9 = vec_insert((unsigned char)0x40, v9, 7);
+
+ /*
+ * Prepare V0 for the next GF(2) multiplication: shift V0 by 8 bytes
+ * to move R4 into the rightmost doubleword and set the leftmost
+ * doubleword to 0x1.
+ */
+ v0 = vec_srb(r4r3, (uv2di)v9);
+ v0[0] = 1;
+
+ /*
+ * Compute GF(2) product of V1 and V0. The rightmost doubleword
+ * of V1 is multiplied with R4. The leftmost doubleword of V1 is
+ * multiplied by 0x1 and is then XORed with rightmost product.
+ * Implicitly, the intermediate leftmost product becomes padded
+ */
+ v1 = (uv2di)vec_gfmsum_128(v0, v1);
+
+ /*
+ * Now do the final 32-bit fold by multiplying the rightmost word
+ * in V1 with R5 and XOR the result with the remaining bits in V1.
+ *
+ * To achieve this by a single VGFMAG, right shift V1 by a word
+ * and store the result in V2 which is then accumulated. Use the
+ * vector unpack instruction to load the rightmost half of the
+ * doubleword into the rightmost doubleword element of V1; the other
+ * half is loaded in the leftmost doubleword.
+ * The vector register with CONST_R5 contains the R5 constant in the
+ * rightmost doubleword and the leftmost doubleword is zero to ignore
+ * the leftmost product of V1.
+ */
+ v9 = vec_insert((unsigned char)0x20, v9, 7);
+ v2 = vec_srb(v1, (uv2di)v9);
+ v1 = vec_unpackl((uv4si)v1); /* Split rightmost doubleword */
+ v1 = (uv2di)vec_gfmsum_accum_128(r5, v1, (uv16qi)v2);
+
+ /*
+ * Apply a Barret reduction to compute the final 32-bit CRC value.
+ *
+ * The input values to the Barret reduction are the degree-63 polynomial
+ * in V1 (R(x)), degree-32 generator polynomial, and the reduction
+ * constant u. The Barret reduction result is the CRC value of R(x) mod
+ * P(x).
+ *
+ * The Barret reduction algorithm is defined as:
+ *
+ * 1. T1(x) = floor( R(x) / x^32 ) GF2MUL u
+ * 2. T2(x) = floor( T1(x) / x^32 ) GF2MUL P(x)
+ * 3. C(x) = R(x) XOR T2(x) mod x^32
+ *
+ * Note: The leftmost doubleword of vector register containing
+ * CONST_RU_POLY is zero and, thus, the intermediate GF(2) product
+ * is zero and does not contribute to the final result.
+ */
+
+ /* T1(x) = floor( R(x) / x^32 ) GF2MUL u */
+ v2 = vec_unpackl((uv4si)v1);
+ v2 = (uv2di)vec_gfmsum_128(ru_poly, v2);
+
+ /*
+ * Compute the GF(2) product of the CRC polynomial with T1(x) in
+ * V2 and XOR the intermediate result, T2(x), with the value in V1.
+ * The final result is stored in word element 2 of V2.
+ */
+ v2 = vec_unpackl((uv4si)v2);
+ v2 = (uv2di)vec_gfmsum_accum_128(crc_poly, v2, (uv16qi)v1);
+
+ return ((uv4si)v2)[2];
+}
diff --git a/contrib/s390/crc32_z_resolver.c b/contrib/s390/crc32_z_resolver.c
new file mode 100644
index 0000000..9749cab
--- /dev/null
+++ b/contrib/s390/crc32_z_resolver.c
@@ -0,0 +1,41 @@
+#include <sys/auxv.h>
+#include "../gcc/zifunc.h"
+
+#define VX_MIN_LEN 64
+#define VX_ALIGNMENT 16L
+#define VX_ALIGN_MASK (VX_ALIGNMENT - 1)
+
+unsigned int crc32_le_vgfm_16(unsigned int crc, const unsigned char FAR *buf, z_size_t len);
+
+local unsigned long s390_crc32_vx(unsigned long crc, const unsigned char FAR *buf, z_size_t len)
+{
+ uintptr_t prealign, aligned, remaining;
+
+ if (buf == Z_NULL) return 0UL;
+
+ if (len < VX_MIN_LEN + VX_ALIGN_MASK)
+ return crc32_z_default(crc, buf, len);
+
+ if ((uintptr_t)buf & VX_ALIGN_MASK) {
+ prealign = VX_ALIGNMENT - ((uintptr_t)buf & VX_ALIGN_MASK);
+ len -= prealign;
+ crc = crc32_z_default(crc, buf, prealign);
+ buf += prealign;
+ }
+ aligned = len & ~VX_ALIGN_MASK;
+ remaining = len & VX_ALIGN_MASK;
+
+ crc = crc32_le_vgfm_16(crc ^ 0xffffffff, buf, (size_t)aligned) ^ 0xffffffff;
+
+ if (remaining)
+ crc = crc32_z_default(crc, buf + aligned, remaining);
+
+ return crc;
+}
+
+Z_IFUNC(crc32_z)
+{
+ if (hwcap & HWCAP_S390_VX)
+ return s390_crc32_vx;
+ return crc32_z_default;
+}
diff --git a/crc32.c b/crc32.c
index b0cda20..379fac3 100644
--- a/crc32.c
+++ b/crc32.c
@@ -199,12 +199,12 @@ const z_crc_t FAR * ZEXPORT get_crc_table()
#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1
/* ========================================================================= */
-#ifdef Z_POWER_OPT
+#if defined(Z_POWER_OPT) || defined(HAVE_S390X_VX)
/* Rename function so resolver can use its symbol. The default version will be
* returned by the resolver if the host has no support for an optimized version.
*/
#define crc32_z crc32_z_default
-#endif /* Z_POWER_OPT */
+#endif /* defined(Z_POWER_OPT) || defined(HAVE_S390X_VX) */
unsigned long ZEXPORT crc32_z(crc, buf, len)
unsigned long crc;
@@ -240,10 +240,15 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
return crc ^ 0xffffffffUL;
}
-#ifdef Z_POWER_OPT
+#if defined(Z_POWER_OPT) || defined(HAVE_S390X_VX)
#undef crc32_z
+#ifdef Z_POWER_OPT
#include "contrib/power/crc32_z_resolver.c"
#endif /* Z_POWER_OPT */
+#ifdef HAVE_S390X_VX
+#include "contrib/s390/crc32_z_resolver.c"
+#endif /* HAVE_S390X_VX */
+#endif /* defined(Z_POWER_OPT) || defined(HAVE_S390X_VX) */
/* ========================================================================= */
unsigned long ZEXPORT crc32(crc, buf, len)
--
2.39.1

14
SOURCES/zlib-1.2.5-minizip-fixuncrypt.patch
Unescape View File

@ -0,0 +1,14 @@
diff -up zlib-1.2.5/contrib/minizip/unzip.c.fixuncrypt zlib-1.2.5/contrib/minizip/unzip.c
--- zlib-1.2.5/contrib/minizip/unzip.c.fixuncrypt 2011-11-11 12:13:56.335867758 -0500
+++ zlib-1.2.5/contrib/minizip/unzip.c 2011-11-11 12:14:01.747799372 -0500
@@ -68,10 +68,6 @@
#include <stdlib.h>
#include <string.h>
-#ifndef NOUNCRYPT
- #define NOUNCRYPT
-#endif
-
#include "zlib.h"
#include "unzip.h"

688
SPECS/zlib.spec
Unescape View File

@ -0,0 +1,688 @@
%bcond_without minizip
Name: zlib
Version: 1.2.11
Release: 39%{?dist}
Summary: Compression and decompression library
# /contrib/dotzlib/ have Boost license
License: zlib and Boost
URL: https://www.zlib.net/
Source: https://www.zlib.net/zlib-%{version}.tar.xz
# https://github.com/madler/zlib/pull/210
Patch0: zlib-1.2.5-minizip-fixuncrypt.patch
# resolves: #805113
Patch1: zlib-1.2.11-optimized-s390.patch
# Backport upstream commit 2d80d3f6b52f9fa454c26c89d2d6a1790e1cecb0
# Reason: Fuzzer founds issues with unknown memory access
Patch5: zlib-1.2.11-Limit-hash-table-inserts.patch
# IBM Z optimalizations
Patch7: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-s390x.patch
# fix for IBM Z optimalizations
Patch11: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix.patch
# permit a deflateParams() parameter change
Patch12: zlib-1.2.11-permit-deflateParams-change.patch
# fixed DFLTCC compression level switching issues
# enabled HW compression for compression levels 1 through 6
Patch13: zlib-1.2.11-IBM-DFLTCC-compression-level-switching-issues.patch
# fixed inflateSyncPoint() bad return value on z15
Patch14: zlib-1.2.11-inflateSyncPoint-return-value-fix.patch
# fixed issues found by covscan for rhel-9
# ref: https://github.com/madler/zlib/pull/554
Patch15: zlib-1.2.11-covscan-issues-rhel9.patch
# fix for IBM Z optimalizations
Patch17: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-compressBound-fix.patch
# Fix for CVE-2018-25032
Patch18: zlib-1.2.11-CVE-2018-25032.patch
# Fix for CVE-2022-37434
Patch19: zlib-1.2.11-cve-2022-37434.patch
Patch20: zlib-1.2.11-cve-2022-37434_2.patch
# Fix setting strm.adler on z15
Patch21: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-strm-adler-fix.patch
# Optimization for z15
Patch22: zlib-1.2.11-IBM-Z-hw-accelrated-inflate-small-window.patch
# Optimized crc32 for Power 8+ processors
# Source: https://github.com/madler/zlib/pull/750
Patch23: zlib-1.2.11-Preparation-for-Power-optimizations.patch
Patch24: zlib-1.2.11-Add-Power8-optimized-crc32.patch
Patch25: zlib-1.2.11-Fix-clang-s-behavior-on-versions-7.patch
# Fix for Unnecessary IFUNC resolver for crc32_z
# Fix for s390x vectorize CRC32
Patch26: zlib-1.2.11-s390x-vectorize-crc32.patch
# Fix for python3.11 broken libxml2 and lxml on s390x
Patch27: zlib-1.2.11-Fix-broken-libxml2-for-python311.patch
# fixed covscan issues
Patch28: zlib-1.2.11-covscan-issues.patch
BuildRequires: make
BuildRequires: automake, autoconf, libtool
%global __provides_exclude_from ^%{_libdir}/pkgconfig/minizip\\.pc$
%description
Zlib is a general-purpose, patent-free, lossless data compression
library which is used by many different programs.
%package devel
Summary: Header files and libraries for Zlib development
Requires: %{name}%{?_isa} = %{version}-%{release}
%description devel
The zlib-devel package contains the header files and libraries needed
to develop programs that use the zlib compression and decompression
library.
%package static
Summary: Static libraries for Zlib development
Requires: %{name}-devel%{?_isa} = %{version}-%{release}
%description static
The zlib-static package includes static libraries needed
to develop programs that use the zlib compression and
decompression library.
%if %{with minizip}
%package -n minizip-compat
Summary: Library for manipulation with .zip archives
Requires: %{name}%{?_isa} = %{version}-%{release}
%description -n minizip-compat
Minizip is a library for manipulation with files from .zip archives.
%package -n minizip-compat-devel
Summary: Development files for the minizip library
Requires: minizip-compat%{?_isa} = %{version}-%{release}
Requires: %{name}-devel%{?_isa} = %{version}-%{release}
Conflicts: minizip-devel
%description -n minizip-compat-devel
This package contains the libraries and header files needed for
developing applications which use minizip.
%endif
%prep
%setup -q
%patch0 -p1 -b .fixuncrypt
%ifarch s390 s390x
%patch1 -p1 -b .optimized-deflate
%endif
%patch5 -p1
%patch7 -p1
%patch11 -p1
%patch12 -p1
%patch13 -p1
%patch14 -p1
%patch15 -p1
%patch17 -p1
%patch18 -p1
%patch19 -p1
%patch20 -p1
%patch21 -p1
%patch22 -p1
%patch23 -p1
%patch24 -p1
%patch25 -p1
%patch26 -p1
%patch27 -p1
%patch28 -p1
iconv -f iso-8859-2 -t utf-8 < ChangeLog > ChangeLog.tmp
mv ChangeLog.tmp ChangeLog
%build
export CFLAGS="$RPM_OPT_FLAGS"
export LDFLAGS="$LDFLAGS -Wl,-z,relro -Wl,-z,now"
# no-autotools, %%configure is not compatible
%ifarch s390 s390x
./configure --libdir=%{_libdir} --includedir=%{_includedir} --prefix=%{_prefix} --dfltcc
%else
./configure --libdir=%{_libdir} --includedir=%{_includedir} --prefix=%{_prefix}
%endif
%make_build
%if %{with minizip}
cd contrib/minizip
autoreconf --install
%configure --enable-static=no
%make_build
%endif
%check
make test
%install
%make_install
%if %{with minizip}
%make_install -C contrib/minizip
# https://github.com/madler/zlib/pull/229
rm $RPM_BUILD_ROOT%_includedir/minizip/crypt.h
%endif
find $RPM_BUILD_ROOT -name '*.la' -delete
%files
%license README
%doc ChangeLog FAQ
%{_libdir}/libz.so.*
%files devel
%doc doc/algorithm.txt test/example.c
%{_libdir}/libz.so
%{_libdir}/pkgconfig/zlib.pc
%{_includedir}/zlib.h
%{_includedir}/zconf.h
%{_mandir}/man3/zlib.3*
%files static
%license README
%{_libdir}/libz.a
%if %{with minizip}
%files -n minizip-compat
%doc contrib/minizip/MiniZip64_info.txt contrib/minizip/MiniZip64_Changes.txt
%{_libdir}/libminizip.so.*
%files -n minizip-compat-devel
%dir %{_includedir}/minizip
%{_includedir}/minizip/*.h
%{_libdir}/libminizip.so
%{_libdir}/pkgconfig/minizip.pc
%endif
%changelog
* Fri Apr 14 2023 MSVSphere Packaging Team <packager@msvsphere.ru> - 1.2.11-39
- Rebuilt for MSVSphere 9.2 beta
* Thu Feb 09 2023 Lukas Javorsky <ljavorsk@redhat.com> - 1.2.11-39
- Fix covscan issue CWE-681
* Tue Feb 07 2023 Lukas Javorsky <ljavorsk@redhat.com> - 1.2.11-38
- Resolve fuzzing issue for unknown memory access
* Tue Feb 07 2023 Lukas Javorsky <ljavorsk@redhat.com> - 1.2.11-37
- Rebased Power 8 optimization patches
- Fix for Unnecessary IFUNC resolver for crc32_z
- Fix for python3.11 broken libxml2 and lxml on s390x
* Mon Dec 19 2022 Ilya Leoshkevich <iii@linux.ibm.com> - 1.2.11-36
- Inflate small window optimization for IBM z15 rhbz#2154775
* Wed Oct 12 2022 Ilya Leoshkevich <iii@linux.ibm.com> - 1.2.11-35
- Fix for IBM strm.adler rhbz#2134074
* Wed Aug 10 2022 Matej Mužila <mmuzila@redhat.com> - 1.2.11-34
- Fix heap-based buffer over-read or buffer overflow in inflate in inflate.c
- Resolves: CVE-2022-37434
* Mon Apr 25 2022 Matej Mužila <mmuzila@redhat.com> - 1.2.11-33
- Fix CVE-2018-25032
Resolves: CVE-2018-25032
* Tue Mar 01 2022 Ilya Leoshkevich <iii@linux.ibm.com> - 1.2.11-32
- Fix for IBM compressBound() rhbz#2056899
* Tue Aug 10 2021 Mohan Boddu <mboddu@redhat.com> - 1.2.11-31
- Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
Related: rhbz#1991688
* Tue Jul 20 2021 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-30
- Fix for IBM CRC32 optimalization rhbz#1959423
* Thu Jul 15 2021 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-29
- Missing RPM_OPT_FLAGS in CFLAGS (#1972057)
* Thu Jun 03 2021 Patrik Novotný <panovotn@redhat.com> - 1.2.11-28
- IBM CRC32 optimalization rhbz#1959423
- Enabled Z hardware-accelerated deflate for compression levels 1 through 6 (#1972057)
* Fri Apr 16 2021 Mohan Boddu <mboddu@redhat.com> - 1.2.11-27
- Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937
* Wed Mar 31 2021 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-26
- fixed covscan issues for rhel-9
* Fri Feb 12 2021 Michal Schorm <mschorm@redhat.com> - 1.2.11-25
- Remove ancient PPC64 hack
- Remove aarch64 optimalizations (#1936823)
* Thu Jan 28 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-24
- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
* Wed Nov 18 2020 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-23
- backport IBM Z updates to fedora
* Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-22
- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
* Fri Jan 31 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-21
- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
* Tue Oct 29 2019 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-20
- Added -DDFLTCC parameter to configure to enable
- Z hardware-accelerated deflate for s390x architectures (#1659433)
* Thu Sep 05 2019 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-19
- IBM CRC32 optimalization for POWER 8+ architectures re-add
- fixed firefox crash duer to zlib (#1741266)
- added test for crc32
* Thu Aug 15 2019 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-18
- IBM CRC32 optimalization for POWER 8+ architectures revert
* Thu Aug 01 2019 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-17
- IBM Z hardware-accelerated deflate for s390x architectures
- IBM CRC32 optimalization for POWER 8+ architectures
* Sat Jul 27 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-16
- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
* Sun Feb 03 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-15
- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
* Tue Oct 2 2018 Peter Robinson <pbrobinson@fedoraproject.org> 1.2.11-14
- Bump build
* Tue Sep 18 2018 Peter Robinson <pbrobinson@fedoraproject.org> 1.2.11-13
- Revert aarch64 neon inflate optimisation
* Wed Aug 29 2018 Patrik Novotný <panovotn@redhat.com> - 1.2.11-12
- Rename minizip and minizip-devel to minizip-compat and minizip-compat-devel respectively
* Thu Aug 23 2018 Patrik Novotný <panovotn@redhat.com> - 1.2.11-11
- Provides minizip-compat and minizip-compat-devel
* Fri Aug 03 2018 Pavel Raiskup <praiskup@redhat.com> - 1.2.11-10
- add %%bcond for minizip
- use %%make_* macros
* Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-9
- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
* Mon Apr 30 2018 Peter Robinson <pbrobinson@fedoraproject.org> 1.2.11-8
- Optimisations for aarch64
- Minor spec cleanups
* Thu Mar 15 2018 Pavel Raiskup <praiskup@redhat.com> - 1.2.11-7
- don't install crypt.h (rhbz#1424609)
* Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-6
- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
* Fri Feb 02 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.2.11-5
- Switch to %%ldconfig_scriptlets
* Thu Aug 03 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild
* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-3
- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
* Thu Feb 09 2017 Pavel Raiskup <praiskup@redhat.com> - 1.2.11-2
- fix s390(x) optimizing patch (FTBFS on s390(x))
- simplify ppc64 hack with -O3
* Mon Jan 30 2017 Pavel Raiskup <praiskup@redhat.com> - 1.2.11-1
- latest upstream release (rhbz#1409372)
- cleanup rpmlint
- revert fix for rhbz#985344
- requires with %%_isa tag
- drop zlib Z_BLOCK flush patch (rhbz#1417355)
* Fri Feb 05 2016 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.8-10
- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
* Fri Aug 14 2015 Adam Jackson <ajax@redhat.com> 1.2.8-9
- Link with -z now for full RELRO
* Fri Jun 19 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.8-8
- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
* Mon Aug 18 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.8-7
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild
* Wed Aug 6 2014 Tom Callaway <spot@fedoraproject.org> - 1.2.8-6
- fix license handling
* Sat Jun 07 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.8-5
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
* Wed Feb 12 2014 jchaloup <jchaloup@redhat.com> - 1.2.8-4
- resolves: #1064213
recompiled with -O3 flag for ppc64 arch
* Sat Aug 10 2013 Kalev Lember <kalevlember@gmail.com> - 1.2.8-3
- resolves: #985344
add a patch to fix missing minizip include
* Sun Aug 04 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.8-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
* Fri Jun 7 2013 Peter Schiffer <pschiffe@redhat.com> - 1.2.8-1
- resolves: #957680
updated to 1.2.8
* Fri Feb 15 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.7-10
- Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
* Thu Oct 4 2012 Peter Schiffer <pschiffe@redhat.com> - 1.2.7-9
- updated patch optimizing deflate on s390(x) architectures
* Wed Aug 29 2012 Peter Schiffer <pschiffe@redhat.com> - 1.2.7-8
- related: #832545
reverted changes for this bug, static libraries shouldn't be compiled with
-fPIC flag
* Mon Aug 27 2012 Peter Schiffer <pschiffe@redhat.com> - 1.2.7-7
- resolves: #844791
rank Z_BLOCK flush below Z_PARTIAL_FLUSH only when last flush was Z_BLOCK
- done some minor .spec file cleanup
* Mon Aug 13 2012 Peter Schiffer <pschiffe@redhat.com> - 1.2.7-6
- added patch from IBM which optimizes deflate on s390(x) architectures
* Thu Aug 02 2012 Peter Schiffer <pschiffe@redhat.com> - 1.2.7-5
- resolves: #832545
recompiled with -fPIC flag
* Sun Jul 22 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.7-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
* Mon Jun 11 2012 Peter Schiffer <pschiffe@redhat.com> - 1.2.7-3
- moved /lib* to /usr/lib*
* Mon Jun 11 2012 Peter Schiffer <pschiffe@redhat.com> - 1.2.7-2
- recompiled with -Wl,-z,relro flags
* Thu May 10 2012 Peter Schiffer <pschiffe@redhat.com> - 1.2.7-1
- resolves: #785726
- resolves: #805874
update to 1.2.7
* Tue Jan 10 2012 Peter Schiffer <pschiffe@redhat.com> - 1.2.5-6
- resolves: #719139
Zlib fails to read zip64 files on 64-bit system
* Fri Nov 11 2011 Tom Callaway <spot@fedoraproject.org> - 1.2.5-5
- fix minizip to permit uncrypt when NOUNCRYPT is not defined
* Wed Apr 6 2011 Ivana Hutarova Varekova <varekova@redhat.com> - 1.2.5-4
- Resolves: #678603
zlib from minizip allowed NULL pointer parameter of function unzGetCurrentFileInfo
* Tue Feb 08 2011 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.5-3
- Rebuilt for https://fedoraproject.org/wiki/Fedora_15_Mass_Rebuild
* Wed Jun 16 2010 Ivana Hutarova Varekova <varekova@redhat.com> - 1.2.5-2
- Resolves: #591317
pdfedit fails to compile on i686 with zlib.h errors
* Thu Apr 22 2010 Ivana Hutarova Varekova <varekova@redhat.com> - 1.2.5-1
- update to 1.2.5
* Mon Mar 29 2010 Ivana Hutarova Varekova <varekova@redhat.com> - 1.2.4-1
- update to 1.2.4
use the upstream make/configure files for zlib,
change additional makefile/configure file to be used only to minizip
add pkgconfig to zlib
* Mon Mar 8 2010 Ivana Hutarova Varekova <varekova@redhat.com> - 1.2.3-25
- add Boost license
* Tue Aug 11 2009 Ville Skyttä <ville.skytta@iki.fi> - 1.2.3-24
- Use bzipped upstream tarball.
* Mon Jul 27 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.3-23
- Rebuilt for https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild
* Wed Mar 18 2009 Stepan Kasal <skasal@redhat.com> - 1.2.3-22
- fix the libz.so symlink
* Tue Mar 17 2009 Stepan Kasal <skasal@redhat.com> - 1.2.3-21
- consolidate the autoconfiscation patches into one and clean it up
- consequently, clean up the %%build and %%install sections
- zconf.h includes unistd.h again (#479133)
* Wed Feb 25 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.3-20
- Rebuilt for https://fedoraproject.org/wiki/Fedora_11_Mass_Rebuild
* Mon Dec 1 2008 Ivana Varekova <varekova@redhat.com> - 1.2.3-19
- fix 473490 - unchecked malloc
* Wed Feb 13 2008 Ivana Varekova <varekova@redhat.com> - 1.2.3-18
- change license tag (226671#c29)
* Mon Feb 11 2008 Ivana Varekova <varekova@redhat.com> - 1.2.3-17
- spec file changes
* Fri Nov 23 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-16
- remove minizip headers to minizip-devel
- spec file cleanup
- fix minizip.pc file
* Wed Nov 14 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-15
- separate static subpackage
* Wed Aug 15 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-14
- create minizip subpackage
* Mon May 21 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-13
- remove .so,.a
* Mon May 21 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-12
- Resolves #240277
Move libz to /lib(64)
* Mon Apr 23 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-11
- Resolves: 237295
fix Summary tag
* Fri Mar 23 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-10
- remove zlib .so.* packages to /lib
* Fri Mar 9 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-9
- incorporate package review feedback
* Wed Feb 21 2007 Adam Tkac <atkac redhat com> - 1.2.3-8
- fixed broken version of libz
* Tue Feb 20 2007 Adam Tkac <atkac redhat com> - 1.2.3-7
- building is now automatized
- specfile cleanup
* Tue Feb 20 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-6
- remove the compilation part to build section
some minor changes
* Mon Feb 19 2007 Ivana Varekova <varekova@redhat.com> - 1.2.3-5
- incorporate package review feedback
* Mon Oct 23 2006 Ivana Varekova <varekova@redhat.com> - 1.2.3-4
- fix #209424 - fix libz.a permissions
* Wed Jul 19 2006 Ivana Varekova <varekova@redhat.com> - 1.2.3-3
- add cflags (#199379)
* Wed Jul 12 2006 Jesse Keating <jkeating@redhat.com> - 1.2.3-2
- rebuild
* Fri Feb 10 2006 Jesse Keating <jkeating@redhat.com> - 1.2.3-1.2.1
- bump again for double-long bug on ppc(64)
* Tue Feb 07 2006 Jesse Keating <jkeating@redhat.com> - 1.2.3-1.2
- rebuilt for new gcc4.1 snapshot and glibc changes
* Fri Dec 09 2005 Jesse Keating <jkeating@redhat.com>
- rebuilt
* Wed Aug 24 2005 Florian La Roche <laroche@redhat.com>
- update to 1.2.3
* Fri Jul 22 2005 Ivana Varekova <varekova@redhat.com> 1.2.2.2-5
- fix bug 163038 - CAN-2005-1849 - zlib buffer overflow
* Thu Jul 7 2005 Ivana Varekova <varekova@redhat.com> 1.2.2.2-4
- fix bug 162392 - CAN-2005-2096
* Wed Mar 30 2005 Ivana Varekova <varekova@redhat.com> 1.2.2.2-3
- fix bug 122408 - zlib build process runs configure twice
* Fri Mar 4 2005 Jeff Johnson <jbj@redhat.com> 1.2.2.2-2
- rebuild with gcc4.
* Sat Jan 1 2005 Jeff Johnson <jbj@jbj.org> 1.2.2.2-1
- upgrade to 1.2.2.2.
* Fri Nov 12 2004 Jeff Johnson <jbj@jbj.org> 1.2.2.1-1
- upgrade to 1.2.2.1.
* Sun Sep 12 2004 Jeff Johnson <jbj@redhat.com> 1.2.1.2-1
- update to 1.2.1.2 to fix 2 DoS problems (#131385).
* Tue Jun 15 2004 Elliot Lee <sopwith@redhat.com>
- rebuilt
* Tue Mar 02 2004 Elliot Lee <sopwith@redhat.com>
- rebuilt
* Fri Feb 13 2004 Elliot Lee <sopwith@redhat.com>
- rebuilt
* Sun Jan 18 2004 Jeff Johnson <jbj@jbj.org> 1.2.1.1-1
- upgrade to zlib-1.2.1.1.
* Sun Nov 30 2003 Florian La Roche <Florian.LaRoche@redhat.de>
- update to 1.2.1 release
* Mon Oct 13 2003 Jeff Johnson <jbj@jbj.org> 1.2.0.7-3
- unrevert zlib.h include constants (#106291), rejected upstream.
* Wed Oct 8 2003 Jeff Johnson <jbj@jbj.org> 1.2.0.7-2
- fix: gzeof not set when reading compressed file (#106424).
- fix: revert zlib.h include constants for now (#106291).
* Tue Sep 23 2003 Jeff Johnson <jbj@redhat.com> 1.2.0.7-1
- update to 1.2.0.7, penultimate 1.2.1 release candidate.
* Tue Jul 22 2003 Jeff Johnson <jbj@redhat.com> 1.2.0.3-0.1
- update to release candidate.
* Wed Jun 04 2003 Elliot Lee <sopwith@redhat.com>
- rebuilt
* Mon May 19 2003 Jeff Johnson <jbj@redhat.com> 1.1.4-9
- rebuild, revert from 1.2.0.1.
* Mon Feb 24 2003 Jeff Johnson <jbj@redhat.com> 1.1.4-8
- fix gzprintf buffer overrun (#84961).
* Wed Jan 22 2003 Tim Powers <timp@redhat.com> 1.1.4-7
- rebuilt
* Thu Nov 21 2002 Elliot Lee <sopwith@redhat.com> 1.1.4-6
- Make ./configure use $CC to ease cross-compilation
* Tue Nov 12 2002 Jeff Johnson <jbj@redhat.com> 1.1.4-5
- rebuild from cvs.
* Fri Jun 21 2002 Tim Powers <timp@redhat.com>
- automated rebuild
* Thu May 23 2002 Tim Powers <timp@redhat.com>
- automated rebuild
* Fri Apr 26 2002 Jakub Jelinek <jakub@redhat.com> 1.1.4-2
- remove glibc patch, it is no longer needed (zlib uses gcc -shared
as it should)
- run tests and only build the package if they succeed
* Thu Apr 25 2002 Trond Eivind Glomsrød <teg@redhat.com> 1.1.4-1
- 1.1.4
* Wed Jan 30 2002 Trond Eivind Glomsrød <teg@redhat.com> 1.1.3-25.7
- Fix double free
* Sun Aug 26 2001 Trond Eivind Glomsrød <teg@redhat.com> 1.1.3-24
- Add example.c and minigzip.c to the doc files, as
they are listed as examples in the README (#52574)
* Mon Jun 18 2001 Trond Eivind Glomsrød <teg@redhat.com>
- Updated URL
- Add version dependency for zlib-devel
- s/Copyright/License/
* Wed Feb 14 2001 Trond Eivind Glomsrød <teg@redhat.com>
- bumped version number - this is the old version without the performance enhancements
* Fri Sep 15 2000 Florian La Roche <Florian.LaRoche@redhat.de>
- add -fPIC for shared libs (patch by Fritz Elfert)
* Thu Sep 7 2000 Jeff Johnson <jbj@redhat.com>
- on 64bit systems, make sure libraries are located correctly.
* Thu Aug 17 2000 Jeff Johnson <jbj@redhat.com>
- summaries from specspo.
* Thu Jul 13 2000 Prospector <bugzilla@redhat.com>
- automatic rebuild
* Sun Jul 02 2000 Trond Eivind Glomsrød <teg@redhat.com>
- rebuild
* Tue Jun 13 2000 Jeff Johnson <jbj@redhat.com>
- FHS packaging to build on solaris2.5.1.
* Wed Jun 07 2000 Trond Eivind Glomsrød <teg@redhat.com>
- use %%{_mandir} and %%{_tmppath}
* Fri May 12 2000 Trond Eivind Glomsrød <teg@redhat.com>
- updated URL and source location
- moved README to main package
* Mon Feb 7 2000 Jeff Johnson <jbj@redhat.com>
- compress man page.
* Sun Mar 21 1999 Cristian Gafton <gafton@redhat.com>
- auto rebuild in the new build environment (release 5)
* Wed Sep 09 1998 Cristian Gafton <gafton@redhat.com>
- link against glibc
* Mon Jul 27 1998 Jeff Johnson <jbj@redhat.com>
- upgrade to 1.1.3
* Fri May 08 1998 Prospector System <bugs@redhat.com>
- translations modified for de, fr, tr
* Wed Apr 08 1998 Cristian Gafton <gafton@redhat.com>
- upgraded to 1.1.2
- buildroot
* Tue Oct 07 1997 Donnie Barnes <djb@redhat.com>
- added URL tag (down at the moment so it may not be correct)
- made zlib-devel require zlib
* Thu Jun 19 1997 Erik Troan <ewt@redhat.com>
- built against glibc
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