Compare commits
No commits in common. 'c9' and 'i8c' have entirely different histories.
@ -1 +1 @@
|
||||
SOURCES/gzip-1.12.tar.xz
|
||||
SOURCES/gzip-1.9.tar.xz
|
||||
|
||||
@ -1 +1 @@
|
||||
318107297587818c8f1e1fbb55962f4b2897bc0b SOURCES/gzip-1.12.tar.xz
|
||||
0249ad4c4ca1f144714e8e21b6d0db24651fc122 SOURCES/gzip-1.9.tar.xz
|
||||
|
||||
@ -0,0 +1,43 @@
|
||||
From dc9740df61e575e8c3148b7bd3c147a81ea00c7c Mon Sep 17 00:00:00 2001
|
||||
From: Lasse Collin <lasse.collin@tukaani.org>
|
||||
Date: Mon, 4 Apr 2022 23:52:49 -0700
|
||||
Subject: zgrep: avoid exploit via multi-newline file names
|
||||
|
||||
* zgrep.in: The issue with the old code is that with multiple
|
||||
newlines, the N-command will read the second line of input,
|
||||
then the s-commands will be skipped because it's not the end
|
||||
of the file yet, then a new sed cycle starts and the pattern
|
||||
space is printed and emptied. So only the last line or two get
|
||||
escaped. This patch makes sed read all lines into the pattern
|
||||
space and then do the escaping.
|
||||
|
||||
This vulnerability was discovered by:
|
||||
cleemy desu wayo working with Trend Micro Zero Day Initiative
|
||||
---
|
||||
zgrep.in | 10 +++++++---
|
||||
1 file changed, 7 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/zgrep.in b/zgrep.in
|
||||
index 345dae3..bdf7da2 100644
|
||||
--- a/zgrep.in
|
||||
+++ b/zgrep.in
|
||||
@@ -222,9 +222,13 @@ do
|
||||
'* | *'&'* | *'\'* | *'|'*)
|
||||
i=$(printf '%s\n' "$i" |
|
||||
sed '
|
||||
- $!N
|
||||
- $s/[&\|]/\\&/g
|
||||
- $s/\n/\\n/g
|
||||
+ :start
|
||||
+ $!{
|
||||
+ N
|
||||
+ b start
|
||||
+ }
|
||||
+ s/[&\|]/\\&/g
|
||||
+ s/\n/\\n/g
|
||||
');;
|
||||
esac
|
||||
sed_script="s|^|$i:|"
|
||||
--
|
||||
cgit v1.1
|
||||
|
||||
@ -0,0 +1,77 @@
|
||||
From d74a30d45c6834c8e9f87115197370fe86656d81 Mon Sep 17 00:00:00 2001
|
||||
From: Jim Meyering <meyering@fb.com>
|
||||
Date: Mon, 4 Apr 2022 23:52:49 -0700
|
||||
Subject: zgrep: add NEWS and tests for this exploitable bug
|
||||
|
||||
* tests/zgrep-abuse: New file, based on PoC by cleemy desu wayo.
|
||||
* tests/Makefile.am (TESTS): Add it.
|
||||
* NEWS: Mention the exploit.
|
||||
The bug appears to have been present since the beginning.
|
||||
---
|
||||
tests/Makefile.am | 1 +
|
||||
tests/zgrep-abuse | 41 +++++++++++++++++++++++++++++++++++++++++
|
||||
3 files changed, 45 insertions(+)
|
||||
create mode 100755 tests/zgrep-abuse
|
||||
|
||||
diff --git a/tests/Makefile.am b/tests/Makefile.am
|
||||
index d09672e..5f148d6 100644
|
||||
--- a/tests/Makefile.am
|
||||
+++ b/tests/Makefile.am
|
||||
@@ -36,6 +36,7 @@ TESTS = \
|
||||
z-suffix \
|
||||
zdiff \
|
||||
zgrep-f \
|
||||
+ zgrep-abuse \
|
||||
zgrep-context \
|
||||
zgrep-signal \
|
||||
znew-k
|
||||
diff --git a/tests/zgrep-abuse b/tests/zgrep-abuse
|
||||
new file mode 100755
|
||||
index 0000000..3e8a8f9
|
||||
--- /dev/null
|
||||
+++ b/tests/zgrep-abuse
|
||||
@@ -0,0 +1,41 @@
|
||||
+#!/bin/sh
|
||||
+# Show how zgrep applied to a crafted file name may overwrite
|
||||
+# a selected file with chosen content. Fixed in gzip-1.12.
|
||||
+
|
||||
+# Copyright (C) 2022 Free Software Foundation, Inc.
|
||||
+
|
||||
+# This program is free software: you can redistribute it and/or modify
|
||||
+# it under the terms of the GNU General Public License as published by
|
||||
+# the Free Software Foundation, either version 3 of the License, or
|
||||
+# (at your option) any later version.
|
||||
+
|
||||
+# This program is distributed in the hope that it will be useful,
|
||||
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
+# GNU General Public License for more details.
|
||||
+
|
||||
+# You should have received a copy of the GNU General Public License
|
||||
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
+# limit so don't run it by default.
|
||||
+
|
||||
+. "${srcdir=.}/init.sh"; path_prepend_ ..
|
||||
+
|
||||
+: > z || framework_failure_
|
||||
+echo test |gzip > 'z|
|
||||
+p
|
||||
+1s|.*|chosen-content|
|
||||
+1w hacked
|
||||
+etouch .\x2fhacked2
|
||||
+d
|
||||
+#
|
||||
+#' || framework_failure_
|
||||
+
|
||||
+fail=0
|
||||
+
|
||||
+zgrep test z* > /dev/null
|
||||
+
|
||||
+# Before the fix, each of these would be created.
|
||||
+test -f hacked && fail=1
|
||||
+test -f hacked2 && fail=1
|
||||
+
|
||||
+Exit $fail
|
||||
--
|
||||
cgit v1.1
|
||||
|
||||
@ -0,0 +1,67 @@
|
||||
---
|
||||
dfltcc.c | 14 ++++++++------
|
||||
1 file changed, 8 insertions(+), 6 deletions(-)
|
||||
|
||||
diff --git a/dfltcc.c b/dfltcc.c
|
||||
index 86aa56e..3a5b92d 100644
|
||||
--- a/dfltcc.c
|
||||
+++ b/dfltcc.c
|
||||
@@ -242,10 +242,8 @@ dfltcc_gdht (struct dfltcc_param_v0 *param)
|
||||
dfltcc (DFLTCC_GDHT, param, NULL, NULL, &next_in, &avail_in, NULL);
|
||||
}
|
||||
|
||||
-static off_t total_in;
|
||||
-
|
||||
static dfltcc_cc
|
||||
-dfltcc_cmpr_xpnd (struct dfltcc_param_v0 *param, int fn)
|
||||
+dfltcc_cmpr_xpnd (struct dfltcc_param_v0 *param, int fn, off_t *total_in)
|
||||
{
|
||||
uch *next_out = outbuf + outcnt;
|
||||
size_t avail_out = OUTBUFSIZ - outcnt;
|
||||
@@ -257,7 +255,7 @@ dfltcc_cmpr_xpnd (struct dfltcc_param_v0 *param, int fn)
|
||||
window);
|
||||
off_t consumed_in = next_in - (inbuf + inptr);
|
||||
inptr += consumed_in;
|
||||
- total_in += consumed_in;
|
||||
+ *total_in += consumed_in;
|
||||
outcnt += ((OUTBUFSIZ - outcnt) - avail_out);
|
||||
return cc;
|
||||
}
|
||||
@@ -349,6 +347,7 @@ dfltcc_deflate (int pack_level)
|
||||
|
||||
union aligned_dfltcc_param_v0 ctx_v0;
|
||||
struct dfltcc_param_v0 *param = init_param (&ctx_v0);
|
||||
+ off_t total_in = 0;
|
||||
|
||||
/* Compress ifd into ofd in a loop. */
|
||||
while (true)
|
||||
@@ -398,7 +397,8 @@ dfltcc_deflate (int pack_level)
|
||||
}
|
||||
|
||||
/* Compress inbuf into outbuf. */
|
||||
- while (dfltcc_cmpr_xpnd (param, DFLTCC_CMPR) == DFLTCC_CC_AGAIN)
|
||||
+ while (dfltcc_cmpr_xpnd (param, DFLTCC_CMPR, &total_in)
|
||||
+ == DFLTCC_CC_AGAIN)
|
||||
;
|
||||
|
||||
/* Unmask the input data. */
|
||||
@@ -427,6 +427,7 @@ dfltcc_inflate (void)
|
||||
|
||||
union aligned_dfltcc_param_v0 ctx_v0;
|
||||
struct dfltcc_param_v0 *param = init_param (&ctx_v0);
|
||||
+ off_t total_in = 0;
|
||||
|
||||
/* Decompress ifd into ofd in a loop. */
|
||||
while (true)
|
||||
@@ -446,7 +447,8 @@ dfltcc_inflate (void)
|
||||
|
||||
/* Decompress inbuf into outbuf. */
|
||||
dfltcc_cc cc;
|
||||
- while ((cc = dfltcc_cmpr_xpnd (param, DFLTCC_XPND)) == DFLTCC_CC_AGAIN)
|
||||
+ while ((cc = dfltcc_cmpr_xpnd (param, DFLTCC_XPND, &total_in))
|
||||
+ == DFLTCC_CC_AGAIN)
|
||||
;
|
||||
if (cc == DFLTCC_CC_OK)
|
||||
{
|
||||
--
|
||||
2.25.4
|
||||
@ -0,0 +1,841 @@
|
||||
diff --git a/Makefile.am b/Makefile.am
|
||||
index 025c914..8b4120c 100644
|
||||
--- a/Makefile.am
|
||||
+++ b/Makefile.am
|
||||
@@ -55,6 +55,9 @@ gzip_SOURCES = \
|
||||
trees.c unlzh.c unlzw.c unpack.c unzip.c util.c zip.c
|
||||
gzip_LDADD = libver.a lib/libgzip.a
|
||||
gzip_LDADD += $(LIB_CLOCK_GETTIME)
|
||||
+if IBM_Z_DFLTCC
|
||||
+gzip_SOURCES += dfltcc.c
|
||||
+endif
|
||||
|
||||
BUILT_SOURCES += version.c
|
||||
version.c: Makefile
|
||||
diff --git a/bits.c b/bits.c
|
||||
index b0df2fe..9effc32 100644
|
||||
--- a/bits.c
|
||||
+++ b/bits.c
|
||||
@@ -78,7 +78,7 @@
|
||||
|
||||
local file_t zfile; /* output gzip file */
|
||||
|
||||
-local unsigned short bi_buf;
|
||||
+unsigned short bi_buf;
|
||||
/* Output buffer. bits are inserted starting at the bottom (least significant
|
||||
* bits).
|
||||
*/
|
||||
@@ -88,7 +88,7 @@ local unsigned short bi_buf;
|
||||
* more than 16 bits on some systems.)
|
||||
*/
|
||||
|
||||
-local int bi_valid;
|
||||
+int bi_valid;
|
||||
/* Number of valid bits in bi_buf. All bits above the last valid bit
|
||||
* are always zero.
|
||||
*/
|
||||
diff --git a/configure.ac b/configure.ac
|
||||
index 9a2b635..76ac26f 100644
|
||||
--- a/configure.ac
|
||||
+++ b/configure.ac
|
||||
@@ -78,6 +78,16 @@ AC_ARG_ENABLE([gcc-warnings],
|
||||
fi]
|
||||
)
|
||||
|
||||
+AC_ARG_ENABLE([dfltcc],
|
||||
+ [AS_HELP_STRING([--enable-dfltcc],
|
||||
+ [use DEFLATE COMPRESSION CALL instruction on IBM Z])],
|
||||
+ [case $enableval in
|
||||
+ yes|no) gl_dfltcc=$enableval ;;
|
||||
+ *) AC_MSG_ERROR([bad value $enableval for dfltcc option]) ;;
|
||||
+ esac],
|
||||
+ [gl_dfltcc=no]
|
||||
+)
|
||||
+
|
||||
# gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
|
||||
# ------------------------------------------------
|
||||
# If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
|
||||
@@ -188,6 +198,12 @@ if test "$gl_gcc_warnings" = yes; then
|
||||
AC_SUBST([GNULIB_WARN_CFLAGS])
|
||||
fi
|
||||
|
||||
+if test "$gl_dfltcc" = yes; then
|
||||
+ AC_DEFINE([IBM_Z_DFLTCC], ,
|
||||
+ [Use DEFLATE COMPRESSION CALL instruction on IBM Z machines.])
|
||||
+fi
|
||||
+AM_CONDITIONAL([IBM_Z_DFLTCC], [test "$gl_dfltcc" = yes])
|
||||
+
|
||||
# cc -E produces incorrect asm files on SVR4, so postprocess it.
|
||||
ASCPPPOST="sed '/^ *\\#/d; s,//.*,,; s/% /%/g; s/\\. /./g'"
|
||||
AC_SUBST([ASCPPPOST])
|
||||
diff --git a/deflate.c b/deflate.c
|
||||
index 8ffff3a..869b902 100644
|
||||
--- a/deflate.c
|
||||
+++ b/deflate.c
|
||||
@@ -123,10 +123,6 @@
|
||||
#define NIL 0
|
||||
/* Tail of hash chains */
|
||||
|
||||
-#define FAST 4
|
||||
-#define SLOW 2
|
||||
-/* speed options for the general purpose bit flag */
|
||||
-
|
||||
#ifndef TOO_FAR
|
||||
# define TOO_FAR 4096
|
||||
#endif
|
||||
@@ -215,9 +211,6 @@ local unsigned int max_lazy_match;
|
||||
* max_insert_length is used only for compression levels <= 3.
|
||||
*/
|
||||
|
||||
-local int compr_level;
|
||||
-/* compression level (1..9) */
|
||||
-
|
||||
unsigned good_match;
|
||||
/* Use a faster search when the previous match is longer than this */
|
||||
|
||||
@@ -308,14 +301,12 @@ local void check_match (IPos start, IPos match, int length);
|
||||
/* ===========================================================================
|
||||
* Initialize the "longest match" routines for a new file
|
||||
*/
|
||||
-void lm_init (pack_level, flags)
|
||||
+void lm_init (pack_level)
|
||||
int pack_level; /* 0: store, 1: best speed, 9: best compression */
|
||||
- ush *flags; /* general purpose bit flag */
|
||||
{
|
||||
register unsigned j;
|
||||
|
||||
if (pack_level < 1 || pack_level > 9) gzip_error ("bad pack level");
|
||||
- compr_level = pack_level;
|
||||
|
||||
/* Initialize the hash table. */
|
||||
#if defined MAXSEG_64K && HASH_BITS == 15
|
||||
@@ -337,11 +328,6 @@ void lm_init (pack_level, flags)
|
||||
nice_match = configuration_table[pack_level].nice_length;
|
||||
#endif
|
||||
max_chain_length = configuration_table[pack_level].max_chain;
|
||||
- if (pack_level == 1) {
|
||||
- *flags |= FAST;
|
||||
- } else if (pack_level == 9) {
|
||||
- *flags |= SLOW;
|
||||
- }
|
||||
/* ??? reduce max_chain_length for binary files */
|
||||
|
||||
strstart = 0;
|
||||
@@ -732,7 +718,7 @@ local off_t deflate_fast()
|
||||
* evaluation for matches: a match is finally adopted only if there is
|
||||
* no better match at the next window position.
|
||||
*/
|
||||
-off_t deflate()
|
||||
+off_t deflate(int pack_level)
|
||||
{
|
||||
IPos hash_head; /* head of hash chain */
|
||||
IPos prev_match; /* previous match */
|
||||
@@ -740,7 +726,8 @@ off_t deflate()
|
||||
int match_available = 0; /* set if previous match exists */
|
||||
register unsigned match_length = MIN_MATCH-1; /* length of best match */
|
||||
|
||||
- if (compr_level <= 3) return deflate_fast(); /* optimized for speed */
|
||||
+ lm_init(pack_level);
|
||||
+ if (pack_level <= 3) return deflate_fast(); /* optimized for speed */
|
||||
|
||||
/* Process the input block. */
|
||||
while (lookahead != 0) {
|
||||
diff --git a/dfltcc.c b/dfltcc.c
|
||||
new file mode 100644
|
||||
index 0000000..9010475
|
||||
--- /dev/null
|
||||
+++ b/dfltcc.c
|
||||
@@ -0,0 +1,429 @@
|
||||
+/* dfltcc.c -- compress data using IBM Z DEFLATE COMPRESSION CALL
|
||||
+
|
||||
+ Copyright (C) 2019 Free Software Foundation, Inc.
|
||||
+
|
||||
+ This program is free software; you can redistribute it and/or modify
|
||||
+ it under the terms of the GNU General Public License as published by
|
||||
+ the Free Software Foundation; either version 3, or (at your option)
|
||||
+ any later version.
|
||||
+
|
||||
+ This program is distributed in the hope that it will be useful,
|
||||
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
+ GNU General Public License for more details.
|
||||
+
|
||||
+ You should have received a copy of the GNU General Public License
|
||||
+ along with this program; if not, write to the Free Software Foundation,
|
||||
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
|
||||
+
|
||||
+#include <config.h>
|
||||
+#include <stdlib.h>
|
||||
+#ifdef DFLTCC_USDT
|
||||
+#include <sys/sdt.h>
|
||||
+#endif
|
||||
+
|
||||
+#include "tailor.h"
|
||||
+#include "gzip.h"
|
||||
+
|
||||
+#ifdef DYN_ALLOC
|
||||
+ error: DYN_ALLOC is not supported by DFLTCC
|
||||
+#endif
|
||||
+
|
||||
+/* ===========================================================================
|
||||
+ * C wrappers for the DEFLATE CONVERSION CALL instruction.
|
||||
+ */
|
||||
+
|
||||
+typedef enum
|
||||
+{
|
||||
+ DFLTCC_CC_OK = 0,
|
||||
+ DFLTCC_CC_OP1_TOO_SHORT = 1,
|
||||
+ DFLTCC_CC_OP2_TOO_SHORT = 2,
|
||||
+ DFLTCC_CC_OP2_CORRUPT = 2,
|
||||
+ DFLTCC_CC_AGAIN = 3,
|
||||
+} dfltcc_cc;
|
||||
+
|
||||
+#define DFLTCC_QAF 0
|
||||
+#define DFLTCC_GDHT 1
|
||||
+#define DFLTCC_CMPR 2
|
||||
+#define DFLTCC_XPND 4
|
||||
+#define HBT_CIRCULAR (1 << 7)
|
||||
+//#define HB_BITS 15
|
||||
+//#define HB_SIZE (1 << HB_BITS)
|
||||
+#define DFLTCC_FACILITY 151
|
||||
+#define DFLTCC_FMT0 0
|
||||
+#define CVT_CRC32 0
|
||||
+#define HTT_FIXED 0
|
||||
+#define HTT_DYNAMIC 1
|
||||
+
|
||||
+struct dfltcc_qaf_param
|
||||
+{
|
||||
+ char fns[16];
|
||||
+ char reserved1[8];
|
||||
+ char fmts[2];
|
||||
+ char reserved2[6];
|
||||
+};
|
||||
+
|
||||
+struct dfltcc_param_v0
|
||||
+{
|
||||
+ unsigned short pbvn; /* Parameter-Block-Version Number */
|
||||
+ unsigned char mvn; /* Model-Version Number */
|
||||
+ unsigned char ribm; /* Reserved for IBM use */
|
||||
+ unsigned reserved32 : 31;
|
||||
+ unsigned cf : 1; /* Continuation Flag */
|
||||
+ unsigned char reserved64[8];
|
||||
+ unsigned nt : 1; /* New Task */
|
||||
+ unsigned reserved129 : 1;
|
||||
+ unsigned cvt : 1; /* Check Value Type */
|
||||
+ unsigned reserved131 : 1;
|
||||
+ unsigned htt : 1; /* Huffman-Table Type */
|
||||
+ unsigned bcf : 1; /* Block-Continuation Flag */
|
||||
+ unsigned bcc : 1; /* Block Closing Control */
|
||||
+ unsigned bhf : 1; /* Block Header Final */
|
||||
+ unsigned reserved136 : 1;
|
||||
+ unsigned reserved137 : 1;
|
||||
+ unsigned dhtgc : 1; /* DHT Generation Control */
|
||||
+ unsigned reserved139 : 5;
|
||||
+ unsigned reserved144 : 5;
|
||||
+ unsigned sbb : 3; /* Sub-Byte Boundary */
|
||||
+ unsigned char oesc; /* Operation-Ending-Supplemental Code */
|
||||
+ unsigned reserved160 : 12;
|
||||
+ unsigned ifs : 4; /* Incomplete-Function Status */
|
||||
+ unsigned short ifl; /* Incomplete-Function Length */
|
||||
+ unsigned char reserved192[8];
|
||||
+ unsigned char reserved256[8];
|
||||
+ unsigned char reserved320[4];
|
||||
+ unsigned short hl; /* History Length */
|
||||
+ unsigned reserved368 : 1;
|
||||
+ unsigned short ho : 15; /* History Offset */
|
||||
+ unsigned int cv; /* Check Value */
|
||||
+ unsigned eobs : 15; /* End-of-block Symbol */
|
||||
+ unsigned reserved431 : 1;
|
||||
+ unsigned char eobl : 4; /* End-of-block Length */
|
||||
+ unsigned reserved436 : 12;
|
||||
+ unsigned reserved448 : 4;
|
||||
+ unsigned short cdhtl : 12; /* Compressed-Dynamic-Huffman Table
|
||||
+ Length */
|
||||
+ unsigned char reserved464[6];
|
||||
+ unsigned char cdht[288];
|
||||
+ unsigned char reserved[32];
|
||||
+ unsigned char csb[1152];
|
||||
+};
|
||||
+
|
||||
+static int is_bit_set(const char *bits, int n)
|
||||
+{
|
||||
+ return bits[n / 8] & (1 << (7 - (n % 8)));
|
||||
+}
|
||||
+
|
||||
+static int is_dfltcc_enabled(void)
|
||||
+{
|
||||
+ const char *env;
|
||||
+ char facilities[((DFLTCC_FACILITY / 64) + 1) * 8];
|
||||
+ register int r0 __asm__("r0");
|
||||
+
|
||||
+ env = getenv("DFLTCC");
|
||||
+ if (env && !strcmp(env, "0")) {
|
||||
+ return 0;
|
||||
+ }
|
||||
+
|
||||
+ r0 = sizeof(facilities) / 8;
|
||||
+ __asm__("stfle %[facilities]\n"
|
||||
+ : [facilities] "=Q"(facilities) : [r0] "r"(r0) : "cc", "memory");
|
||||
+ return is_bit_set((const char *) facilities, DFLTCC_FACILITY);
|
||||
+}
|
||||
+
|
||||
+static dfltcc_cc dfltcc(int fn, void *param,
|
||||
+ uch **op1, size_t *len1,
|
||||
+ const uch **op2, size_t *len2,
|
||||
+ void *hist)
|
||||
+{
|
||||
+ uch *t2 = op1 ? *op1 : NULL;
|
||||
+ size_t t3 = len1 ? *len1 : 0;
|
||||
+ const uch *t4 = op2 ? *op2 : NULL;
|
||||
+ size_t t5 = len2 ? *len2 : 0;
|
||||
+ register int r0 __asm__("r0") = fn;
|
||||
+ register void *r1 __asm__("r1") = param;
|
||||
+ register uch *r2 __asm__("r2") = t2;
|
||||
+ register size_t r3 __asm__("r3") = t3;
|
||||
+ register const uch *r4 __asm__("r4") = t4;
|
||||
+ register size_t r5 __asm__("r5") = t5;
|
||||
+ int cc;
|
||||
+
|
||||
+ __asm__ volatile(
|
||||
+#ifdef DFLTCC_USDT
|
||||
+ STAP_PROBE_ASM(zlib, dfltcc_entry,
|
||||
+ STAP_PROBE_ASM_TEMPLATE(5))
|
||||
+#endif
|
||||
+ ".insn rrf,0xb9390000,%[r2],%[r4],%[hist],0\n"
|
||||
+#ifdef DFLTCC_USDT
|
||||
+ STAP_PROBE_ASM(zlib, dfltcc_exit,
|
||||
+ STAP_PROBE_ASM_TEMPLATE(5))
|
||||
+#endif
|
||||
+ "ipm %[cc]\n"
|
||||
+ : [r2] "+r" (r2)
|
||||
+ , [r3] "+r" (r3)
|
||||
+ , [r4] "+r" (r4)
|
||||
+ , [r5] "+r" (r5)
|
||||
+ , [cc] "=r" (cc)
|
||||
+ : [r0] "r" (r0)
|
||||
+ , [r1] "r" (r1)
|
||||
+ , [hist] "r" (hist)
|
||||
+#ifdef DFLTCC_USDT
|
||||
+ , STAP_PROBE_ASM_OPERANDS(5, r2, r3, r4, r5, hist)
|
||||
+#endif
|
||||
+ : "cc", "memory");
|
||||
+ t2 = r2; t3 = r3; t4 = r4; t5 = r5;
|
||||
+
|
||||
+ if (op1)
|
||||
+ *op1 = t2;
|
||||
+ if (len1)
|
||||
+ *len1 = t3;
|
||||
+ if (op2)
|
||||
+ *op2 = t4;
|
||||
+ if (len2)
|
||||
+ *len2 = t5;
|
||||
+ return (cc >> 28) & 3;
|
||||
+}
|
||||
+
|
||||
+static void dfltcc_qaf(struct dfltcc_qaf_param *param)
|
||||
+{
|
||||
+ dfltcc(DFLTCC_QAF, param, NULL, NULL, NULL, NULL, NULL);
|
||||
+}
|
||||
+
|
||||
+static void dfltcc_gdht(struct dfltcc_param_v0 *param)
|
||||
+{
|
||||
+ const uch *next_in = inbuf + inptr;
|
||||
+ size_t avail_in = insize - inptr;
|
||||
+
|
||||
+ dfltcc(DFLTCC_GDHT, param, NULL, NULL, &next_in, &avail_in, NULL);
|
||||
+}
|
||||
+
|
||||
+static off_t total_in;
|
||||
+
|
||||
+static dfltcc_cc dfltcc_cmpr_xpnd(struct dfltcc_param_v0 *param, int fn)
|
||||
+{
|
||||
+ uch *next_out = outbuf + outcnt;
|
||||
+ size_t avail_out = OUTBUFSIZ - outcnt;
|
||||
+ const uch *next_in = inbuf + inptr;
|
||||
+ size_t avail_in = insize - inptr;
|
||||
+ off_t consumed_in;
|
||||
+ dfltcc_cc cc;
|
||||
+
|
||||
+ cc = dfltcc(fn | HBT_CIRCULAR, param,
|
||||
+ &next_out, &avail_out,
|
||||
+ &next_in, &avail_in,
|
||||
+ window);
|
||||
+ consumed_in = next_in - (inbuf + inptr);
|
||||
+ inptr += consumed_in;
|
||||
+ total_in += consumed_in;
|
||||
+ outcnt += ((OUTBUFSIZ - outcnt) - avail_out);
|
||||
+ return cc;
|
||||
+}
|
||||
+
|
||||
+__attribute__((aligned(8)))
|
||||
+static struct context
|
||||
+{
|
||||
+ union
|
||||
+ {
|
||||
+ struct dfltcc_qaf_param af;
|
||||
+ struct dfltcc_param_v0 param;
|
||||
+ };
|
||||
+} ctx;
|
||||
+
|
||||
+static struct dfltcc_param_v0 *init_param(struct dfltcc_param_v0 *param)
|
||||
+{
|
||||
+ const char *s;
|
||||
+
|
||||
+ memset(param, 0, sizeof(*param));
|
||||
+#ifndef DFLTCC_RIBM
|
||||
+#define DFLTCC_RIBM 0
|
||||
+#endif
|
||||
+ s = getenv("DFLTCC_RIBM");
|
||||
+ param->ribm = (s && *s) ? strtoul(s, NULL, 0) : DFLTCC_RIBM;
|
||||
+ param->nt = 1;
|
||||
+ param->cvt = CVT_CRC32;
|
||||
+ param->cv = __builtin_bswap32(getcrc());
|
||||
+ return param;
|
||||
+}
|
||||
+
|
||||
+static void bi_close_block(struct dfltcc_param_v0 *param)
|
||||
+{
|
||||
+ bi_valid = param->sbb;
|
||||
+ bi_buf = bi_valid == 0 ? 0 : outbuf[outcnt] & ((1 << bi_valid) - 1);
|
||||
+ send_bits(
|
||||
+ bi_reverse(param->eobs >> (15 - param->eobl), param->eobl),
|
||||
+ param->eobl);
|
||||
+ param->bcf = 0;
|
||||
+}
|
||||
+
|
||||
+static void close_block(struct dfltcc_param_v0 *param)
|
||||
+{
|
||||
+ bi_close_block(param);
|
||||
+ bi_windup();
|
||||
+ param->sbb = (param->sbb + param->eobl) % 8;
|
||||
+ if (param->sbb != 0) {
|
||||
+ Assert(outcnt > 0, "outbuf must have enough space for EOBS");
|
||||
+ outcnt--;
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+static void close_stream(struct dfltcc_param_v0 *param)
|
||||
+{
|
||||
+ if (param->bcf) {
|
||||
+ bi_close_block(param);
|
||||
+ }
|
||||
+ send_bits(1, 3); /* BFINAL=1, BTYPE=00 */
|
||||
+ bi_windup();
|
||||
+ put_short(0x0000);
|
||||
+ put_short(0xFFFF);
|
||||
+}
|
||||
+
|
||||
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
|
||||
+
|
||||
+/* ===========================================================================
|
||||
+ * Compress ifd into ofd in hardware or fall back to software.
|
||||
+ */
|
||||
+int dfltcc_deflate(int pack_level)
|
||||
+{
|
||||
+ const char *s;
|
||||
+ unsigned long level_mask;
|
||||
+ unsigned long block_size;
|
||||
+ off_t block_threshold;
|
||||
+ struct dfltcc_param_v0 *param;
|
||||
+ int extra;
|
||||
+
|
||||
+ /* Check whether we can use hardware compression */
|
||||
+ if (!is_dfltcc_enabled() || getenv("SOURCE_DATE_EPOCH")) {
|
||||
+ return deflate(pack_level);
|
||||
+ }
|
||||
+#ifndef DFLTCC_LEVEL_MASK
|
||||
+#define DFLTCC_LEVEL_MASK 0x2
|
||||
+#endif
|
||||
+ s = getenv("DFLTCC_LEVEL_MASK");
|
||||
+ level_mask = (s && *s) ? strtoul(s, NULL, 0) : DFLTCC_LEVEL_MASK;
|
||||
+ if ((level_mask & (1 << pack_level)) == 0) {
|
||||
+ return deflate(pack_level);
|
||||
+ }
|
||||
+ dfltcc_qaf(&ctx.af);
|
||||
+ if (!is_bit_set(ctx.af.fns, DFLTCC_CMPR) ||
|
||||
+ !is_bit_set(ctx.af.fns, DFLTCC_GDHT) ||
|
||||
+ !is_bit_set(ctx.af.fmts, DFLTCC_FMT0)) {
|
||||
+ return deflate(pack_level);
|
||||
+ }
|
||||
+
|
||||
+ /* Initialize tuning parameters */
|
||||
+#ifndef DFLTCC_BLOCK_SIZE
|
||||
+#define DFLTCC_BLOCK_SIZE 1048576
|
||||
+#endif
|
||||
+ s = getenv("DFLTCC_BLOCK_SIZE");
|
||||
+ block_size = (s && *s) ? strtoul(s, NULL, 0) : DFLTCC_BLOCK_SIZE;
|
||||
+ (void)block_size;
|
||||
+#ifndef DFLTCC_FIRST_FHT_BLOCK_SIZE
|
||||
+#define DFLTCC_FIRST_FHT_BLOCK_SIZE 4096
|
||||
+#endif
|
||||
+ s = getenv("DFLTCC_FIRST_FHT_BLOCK_SIZE");
|
||||
+ block_threshold = (s && *s) ? strtoul(s, NULL, 0) :
|
||||
+ DFLTCC_FIRST_FHT_BLOCK_SIZE;
|
||||
+
|
||||
+ /* Compress ifd into ofd in a loop */
|
||||
+ param = init_param(&ctx.param);
|
||||
+ while (1) {
|
||||
+ /* Flush the output data */
|
||||
+ if (outcnt > OUTBUFSIZ - 8) {
|
||||
+ flush_outbuf();
|
||||
+ }
|
||||
+
|
||||
+ /* Close the block */
|
||||
+ if (param->bcf && total_in == block_threshold && !param->cf) {
|
||||
+ close_block(param);
|
||||
+ block_threshold += block_size;
|
||||
+ }
|
||||
+
|
||||
+ /* Read the input data */
|
||||
+ if (inptr == insize) {
|
||||
+ if (fill_inbuf(1) == EOF && !param->cf) {
|
||||
+ break;
|
||||
+ }
|
||||
+ inptr = 0;
|
||||
+ }
|
||||
+
|
||||
+ /* Temporarily mask some input data */
|
||||
+ extra = MAX(0, total_in + (insize - inptr) - block_threshold);
|
||||
+ insize -= extra;
|
||||
+
|
||||
+ /* Start a new block */
|
||||
+ if (!param->bcf) {
|
||||
+ if (total_in == 0 && block_threshold > 0) {
|
||||
+ param->htt = HTT_FIXED;
|
||||
+ } else {
|
||||
+ param->htt = HTT_DYNAMIC;
|
||||
+ dfltcc_gdht(param);
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ /* Compress inbuf into outbuf */
|
||||
+ dfltcc_cmpr_xpnd(param, DFLTCC_CMPR);
|
||||
+
|
||||
+ /* Unmask the input data */
|
||||
+ insize += extra;
|
||||
+
|
||||
+ /* Continue the block */
|
||||
+ param->bcf = 1;
|
||||
+ }
|
||||
+ close_stream(param);
|
||||
+ setcrc(__builtin_bswap32(param->cv));
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+/* ===========================================================================
|
||||
+ * Decompress ifd into ofd in hardware or fall back to software.
|
||||
+ */
|
||||
+int dfltcc_inflate(void)
|
||||
+{
|
||||
+ struct dfltcc_param_v0 *param;
|
||||
+ dfltcc_cc cc;
|
||||
+
|
||||
+ /* Check whether we can use hardware decompression */
|
||||
+ if (!is_dfltcc_enabled()) {
|
||||
+ return inflate();
|
||||
+ }
|
||||
+ dfltcc_qaf(&ctx.af);
|
||||
+ if (!is_bit_set(ctx.af.fns, DFLTCC_XPND)) {
|
||||
+ return inflate();
|
||||
+ }
|
||||
+
|
||||
+ /* Decompress ifd into ofd in a loop */
|
||||
+ param = init_param(&ctx.param);
|
||||
+ while (1) {
|
||||
+ /* Perform I/O */
|
||||
+ if (outcnt == OUTBUFSIZ) {
|
||||
+ flush_outbuf();
|
||||
+ }
|
||||
+ if (inptr == insize) {
|
||||
+ if (fill_inbuf(1) == EOF) {
|
||||
+ /* Premature EOF */
|
||||
+ return 2;
|
||||
+ }
|
||||
+ inptr = 0;
|
||||
+ }
|
||||
+ /* Decompress inbuf into outbuf */
|
||||
+ cc = dfltcc_cmpr_xpnd(param, DFLTCC_XPND);
|
||||
+ if (cc == DFLTCC_CC_OK) {
|
||||
+ /* The entire deflate stream has been successfully decompressed */
|
||||
+ break;
|
||||
+ }
|
||||
+ if (cc == DFLTCC_CC_OP2_CORRUPT && param->oesc != 0) {
|
||||
+ /* The deflate stream is corrupted */
|
||||
+ return 2;
|
||||
+ }
|
||||
+ /* There must be more data to decompress */
|
||||
+ }
|
||||
+ if (param->sbb != 0) {
|
||||
+ /* The deflate stream has ended in the middle of a byte - go to the next
|
||||
+ * byte boundary, so that unzip() can read CRC and length.
|
||||
+ */
|
||||
+ inptr++;
|
||||
+ }
|
||||
+ setcrc(__builtin_bswap32(param->cv)); /* set CRC value for unzip() */
|
||||
+ flush_outbuf(); /* update bytes_out for unzip() */
|
||||
+ return 0;
|
||||
+}
|
||||
diff --git a/gzip.c b/gzip.c
|
||||
index 3ddfb7f..4fffc4f 100644
|
||||
--- a/gzip.c
|
||||
+++ b/gzip.c
|
||||
@@ -128,9 +128,21 @@ static char const *const license_msg[] = {
|
||||
|
||||
/* global buffers */
|
||||
|
||||
+#ifdef IBM_Z_DFLTCC
|
||||
+/* DEFLATE COMPRESSION CALL works faster with page-aligned input buffers */
|
||||
+__attribute__((aligned(4096)))
|
||||
+#endif
|
||||
DECLARE(uch, inbuf, INBUFSIZ +INBUF_EXTRA);
|
||||
+#ifdef IBM_Z_DFLTCC
|
||||
+/* DEFLATE COMPRESSION CALL works faster with page-aligned output buffers */
|
||||
+__attribute__((aligned(4096)))
|
||||
+#endif
|
||||
DECLARE(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
|
||||
DECLARE(ush, d_buf, DIST_BUFSIZE);
|
||||
+#ifdef IBM_Z_DFLTCC
|
||||
+/* DEFLATE COMPRESSION CALL works only with page-aligned windows */
|
||||
+__attribute__((aligned(4096)))
|
||||
+#endif
|
||||
DECLARE(uch, window, 2L*WSIZE);
|
||||
#ifndef MAXSEG_64K
|
||||
DECLARE(ush, tab_prefix, 1L<<BITS);
|
||||
diff --git a/gzip.h b/gzip.h
|
||||
index 46bbac9..0c59cc2 100644
|
||||
--- a/gzip.h
|
||||
+++ b/gzip.h
|
||||
@@ -74,7 +74,10 @@ extern int method; /* compression method * /
|
||||
*/
|
||||
|
||||
#ifndef INBUFSIZ
|
||||
-# ifdef SMALL_MEM
|
||||
+# ifdef IBM_Z_DFLTCC
|
||||
+/* DEFLATE COMPRESSION CALL works faster with larger input buffers */
|
||||
+# define INBUFSIZ 0x40000
|
||||
+# elif defined SMALL_MEM
|
||||
# define INBUFSIZ 0x2000 /* input buffer size */
|
||||
# else
|
||||
# define INBUFSIZ 0x8000 /* input buffer size */
|
||||
@@ -83,7 +86,10 @@ extern int method; /* compression method */
|
||||
#define INBUF_EXTRA 64 /* required by unlzw() */
|
||||
|
||||
#ifndef OUTBUFSIZ
|
||||
-# ifdef SMALL_MEM
|
||||
+# ifdef IBM_Z_DFLTCC
|
||||
+/* DEFLATE COMPRESSION CALL works faster with larger output buffers */
|
||||
+# define OUTBUFSIZ 0x40000
|
||||
+# elif defined SMALL_MEM
|
||||
# define OUTBUFSIZ 8192 /* output buffer size */
|
||||
# else
|
||||
# define OUTBUFSIZ 16384 /* output buffer size */
|
||||
@@ -275,8 +281,8 @@ extern int unlzh (int in, int out);
|
||||
extern noreturn void abort_gzip (void);
|
||||
|
||||
/* in deflate.c */
|
||||
-extern void lm_init (int pack_level, ush *flags);
|
||||
-extern off_t deflate (void);
|
||||
+extern void lm_init (int pack_level);
|
||||
+extern off_t deflate (int pack_level);
|
||||
|
||||
/* in trees.c */
|
||||
extern void ct_init (ush *attr, int *method);
|
||||
@@ -284,6 +290,8 @@ extern int ct_tally (int dist, int lc);
|
||||
extern off_t flush_block (char *buf, ulg stored_len, int pad, int eof);
|
||||
|
||||
/* in bits.c */
|
||||
+extern unsigned short bi_buf;
|
||||
+extern int bi_valid;
|
||||
extern void bi_init (file_t zipfile);
|
||||
extern void send_bits (int value, int length);
|
||||
extern unsigned bi_reverse (unsigned value, int length) _GL_ATTRIBUTE_CONST;
|
||||
@@ -293,7 +301,9 @@ extern int (*read_buf) (char *buf, unsigned size);
|
||||
|
||||
/* in util.c: */
|
||||
extern int copy (int in, int out);
|
||||
-extern ulg updcrc (uch *s, unsigned n);
|
||||
+extern ulg updcrc (const uch *s, unsigned n);
|
||||
+extern ulg getcrc (void) _GL_ATTRIBUTE_PURE;
|
||||
+extern void setcrc (ulg c);
|
||||
extern void clear_bufs (void);
|
||||
extern int fill_inbuf (int eof_ok);
|
||||
extern void flush_outbuf (void);
|
||||
@@ -315,3 +325,9 @@ extern void fprint_off (FILE *, off_t, int);
|
||||
|
||||
/* in inflate.c */
|
||||
extern int inflate (void);
|
||||
+
|
||||
+ /* in dfltcc.c */
|
||||
+#ifdef IBM_Z_DFLTCC
|
||||
+extern int dfltcc_deflate (int pack_level);
|
||||
+extern int dfltcc_inflate (void);
|
||||
+#endif
|
||||
diff --git a/tests/znew-k b/tests/znew-k
|
||||
index eeb7b29..d43246b 100755
|
||||
--- a/tests/znew-k
|
||||
+++ b/tests/znew-k
|
||||
@@ -29,12 +29,13 @@ chmod +x compress || framework_failure_
|
||||
# Note that the basename must have a length of 6 or greater.
|
||||
# Otherwise, "test -f $name" below would fail.
|
||||
name=123456.Z
|
||||
+gzname=123456.gz
|
||||
|
||||
printf '%1012977s' ' ' | gzip -c > $name || framework_failure_
|
||||
|
||||
fail=0
|
||||
|
||||
znew -K $name || fail=1
|
||||
-test -f $name || fail=1
|
||||
+test -f $name || test -f $gzname || fail=1
|
||||
|
||||
Exit $fail
|
||||
diff --git a/unzip.c b/unzip.c
|
||||
index a7255d4..86ef664 100644
|
||||
--- a/unzip.c
|
||||
+++ b/unzip.c
|
||||
@@ -129,7 +129,11 @@ int unzip(in, out)
|
||||
/* Decompress */
|
||||
if (method == DEFLATED) {
|
||||
|
||||
+#ifdef IBM_Z_DFLTCC
|
||||
+ int res = dfltcc_inflate();
|
||||
+#else
|
||||
int res = inflate();
|
||||
+#endif
|
||||
|
||||
if (res == 3) {
|
||||
xalloc_die ();
|
||||
diff --git a/util.c b/util.c
|
||||
index 41e50d7..dc00f4a 100644
|
||||
--- a/util.c
|
||||
+++ b/util.c
|
||||
@@ -96,6 +96,11 @@ static const ulg crc_32_tab[] = {
|
||||
0x2d02ef8dL
|
||||
};
|
||||
|
||||
+/* ========================================================================
|
||||
+ * Shift register contents
|
||||
+ */
|
||||
+static ulg crc = (ulg)0xffffffffL;
|
||||
+
|
||||
/* ===========================================================================
|
||||
* Copy input to output unchanged: zcat == cat with --force.
|
||||
* IN assertion: insize bytes have already been read in inbuf and inptr bytes
|
||||
@@ -126,13 +131,11 @@ int copy(in, out)
|
||||
* Return the current crc in either case.
|
||||
*/
|
||||
ulg updcrc(s, n)
|
||||
- uch *s; /* pointer to bytes to pump through */
|
||||
+ const uch *s; /* pointer to bytes to pump through */
|
||||
unsigned n; /* number of bytes in s[] */
|
||||
{
|
||||
register ulg c; /* temporary variable */
|
||||
|
||||
- static ulg crc = (ulg)0xffffffffL; /* shift register contents */
|
||||
-
|
||||
if (s == NULL) {
|
||||
c = 0xffffffffL;
|
||||
} else {
|
||||
@@ -145,6 +148,23 @@ ulg updcrc(s, n)
|
||||
return c ^ 0xffffffffL; /* (instead of ~c for 64-bit machines) */
|
||||
}
|
||||
|
||||
+/* ===========================================================================
|
||||
+ * Return a current CRC value.
|
||||
+ */
|
||||
+ulg getcrc()
|
||||
+{
|
||||
+ return crc ^ 0xffffffffL;
|
||||
+}
|
||||
+
|
||||
+/* ===========================================================================
|
||||
+ * Set a new CRC value.
|
||||
+ */
|
||||
+void setcrc(c)
|
||||
+ ulg c;
|
||||
+{
|
||||
+ crc = c ^ 0xffffffffL;
|
||||
+}
|
||||
+
|
||||
/* ===========================================================================
|
||||
* Clear input and output buffers
|
||||
*/
|
||||
@@ -238,7 +258,9 @@ void flush_outbuf()
|
||||
{
|
||||
if (outcnt == 0) return;
|
||||
|
||||
- write_buf(ofd, (char *)outbuf, outcnt);
|
||||
+ if (!test) {
|
||||
+ write_buf(ofd, (char *)outbuf, outcnt);
|
||||
+ }
|
||||
bytes_out += (off_t)outcnt;
|
||||
outcnt = 0;
|
||||
}
|
||||
diff --git a/zip.c b/zip.c
|
||||
index 1bd4c78..ace7e5e 100644
|
||||
--- a/zip.c
|
||||
+++ b/zip.c
|
||||
@@ -23,9 +23,12 @@
|
||||
#include "tailor.h"
|
||||
#include "gzip.h"
|
||||
|
||||
-local ulg crc; /* crc on uncompressed file data */
|
||||
off_t header_bytes; /* number of bytes in gzip header */
|
||||
|
||||
+#define FAST 4
|
||||
+#define SLOW 2
|
||||
+/* speed options for the general purpose bit flag */
|
||||
+
|
||||
/* ===========================================================================
|
||||
* Deflate in to out.
|
||||
* IN assertions: the input and output buffers are cleared.
|
||||
@@ -68,11 +71,15 @@ int zip(in, out)
|
||||
put_long (stamp);
|
||||
|
||||
/* Write deflated file to zip file */
|
||||
- crc = updcrc(0, 0);
|
||||
+ updcrc(NULL, 0);
|
||||
|
||||
bi_init(out);
|
||||
ct_init(&attr, &method);
|
||||
- lm_init(level, &deflate_flags);
|
||||
+ if (level == 1) {
|
||||
+ deflate_flags |= FAST;
|
||||
+ } else if (level == 9) {
|
||||
+ deflate_flags |= SLOW;
|
||||
+ }
|
||||
|
||||
put_byte((uch)deflate_flags); /* extra flags */
|
||||
put_byte(OS_CODE); /* OS identifier */
|
||||
@@ -85,7 +92,11 @@ int zip(in, out)
|
||||
}
|
||||
header_bytes = (off_t)outcnt;
|
||||
|
||||
- (void)deflate();
|
||||
+#ifdef IBM_Z_DFLTCC
|
||||
+ (void)dfltcc_deflate(level);
|
||||
+#else
|
||||
+ (void)deflate(level);
|
||||
+#endif
|
||||
|
||||
#ifndef NO_SIZE_CHECK
|
||||
/* Check input size
|
||||
@@ -98,7 +109,7 @@ int zip(in, out)
|
||||
#endif
|
||||
|
||||
/* Write the crc and uncompressed size */
|
||||
- put_long(crc);
|
||||
+ put_long(getcrc());
|
||||
put_long((ulg)bytes_in);
|
||||
header_bytes += 2*4;
|
||||
|
||||
@@ -126,7 +137,7 @@ int file_read(buf, size)
|
||||
return EOF;
|
||||
}
|
||||
|
||||
- crc = updcrc((uch*)buf, len);
|
||||
+ updcrc((uch*)buf, len);
|
||||
bytes_in += (off_t)len;
|
||||
return (int)len;
|
||||
}
|
||||
2.21.0
|
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,218 @@
|
||||
* configure.ac (AC_CHECK_HEADERS_ONCE): Add feature detection for
|
||||
sys/sdt.h probes.
|
||||
* dfltcc.c (dfltcc_cc): Minor formatting improvements.
|
||||
(HB_BITS): Remove.
|
||||
(HB_SIZE): Likewise.
|
||||
(is_dfltcc_enabled): Fix buffer overrun on newer models and incomplete
|
||||
initialization on older models.
|
||||
Add machine mode hint.
|
||||
(dfltcc): Use sys/sdt.h feature detection.
|
||||
(bi_load): New function.
|
||||
(bi_close_block): Use bi_load.
|
||||
(close_stream): Fix overwriting the End-of-block Symbol.
|
||||
(dfltcc_deflate): Fix losing partial byte on flush.
|
||||
Fix setting Block-Continuation Flag when DFLTCC-CMPR outputs 0 bits and
|
||||
requests a retry.
|
||||
Minor formatting improvements.
|
||||
(dfltcc_inflate): Retry immediately if requested.
|
||||
Print the hardware error code and flush the output buffer on error.
|
||||
Minor formatting improvements.
|
||||
* tests/hufts: Ignore the hardware error code.
|
||||
---
|
||||
configure.ac | 2 +-
|
||||
dfltcc.c | 76 ++++++++++++++++++++++++++++++++++++----------------
|
||||
tests/hufts | 2 ++
|
||||
3 files changed, 56 insertions(+), 24 deletions(-)
|
||||
|
||||
diff --git a/configure.ac b/configure.ac
|
||||
index 76ac26f..b4aea34 100644
|
||||
--- a/configure.ac
|
||||
+++ b/configure.ac
|
||||
@@ -263,7 +263,7 @@ AC_SUBST([ASFLAGS_config])
|
||||
AC_ISC_POSIX
|
||||
AC_C_CONST
|
||||
AC_HEADER_STDC
|
||||
-AC_CHECK_HEADERS_ONCE(fcntl.h limits.h memory.h time.h)
|
||||
+AC_CHECK_HEADERS_ONCE(fcntl.h limits.h memory.h time.h sys/sdt.h)
|
||||
AC_CHECK_FUNCS_ONCE([chown fchmod fchown lstat siginterrupt])
|
||||
AC_HEADER_DIRENT
|
||||
AC_TYPE_SIGNAL
|
||||
diff --git a/dfltcc.c b/dfltcc.c
|
||||
index ba62968..ed3be8d 100644
|
||||
--- a/dfltcc.c
|
||||
+++ b/dfltcc.c
|
||||
@@ -22,7 +22,7 @@
|
||||
#include <stdbool.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
-#ifdef DFLTCC_USDT
|
||||
+#ifdef HAVE_SYS_SDT_H
|
||||
# include <sys/sdt.h>
|
||||
#endif
|
||||
|
||||
@@ -39,11 +39,11 @@
|
||||
|
||||
typedef enum
|
||||
{
|
||||
- DFLTCC_CC_OK = 0,
|
||||
- DFLTCC_CC_OP1_TOO_SHORT = 1,
|
||||
- DFLTCC_CC_OP2_TOO_SHORT = 2,
|
||||
- DFLTCC_CC_OP2_CORRUPT = 2,
|
||||
- DFLTCC_CC_AGAIN = 3,
|
||||
+ DFLTCC_CC_OK = 0,
|
||||
+ DFLTCC_CC_OP1_TOO_SHORT = 1,
|
||||
+ DFLTCC_CC_OP2_TOO_SHORT = 2,
|
||||
+ DFLTCC_CC_OP2_CORRUPT = 2,
|
||||
+ DFLTCC_CC_AGAIN = 3,
|
||||
} dfltcc_cc;
|
||||
|
||||
#define DFLTCC_QAF 0
|
||||
@@ -51,8 +51,6 @@ typedef enum
|
||||
#define DFLTCC_CMPR 2
|
||||
#define DFLTCC_XPND 4
|
||||
#define HBT_CIRCULAR (1 << 7)
|
||||
-/* #define HB_BITS 15 */
|
||||
-/* #define HB_SIZE (1 << HB_BITS) */
|
||||
#define DFLTCC_FACILITY 151
|
||||
#define DFLTCC_FMT0 0
|
||||
#define CVT_CRC32 0
|
||||
@@ -155,9 +153,16 @@ is_dfltcc_enabled (void)
|
||||
if (env && !strcmp (env, "0"))
|
||||
return 0;
|
||||
|
||||
- register int r0 __asm__ ("r0") = sizeof facilities / 8;
|
||||
- __asm__ ("stfle %[facilities]\n"
|
||||
- : [facilities] "=Q"(facilities) : [r0] "r"(r0) : "cc", "memory");
|
||||
+ memset (facilities, 0, sizeof facilities);
|
||||
+ register char r0 __asm__ ("r0") = sizeof facilities / 8 - 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. */
|
||||
+ __asm__ (".machinemode push\n"
|
||||
+ ".machinemode zarch\n"
|
||||
+ "stfle %[facilities]\n"
|
||||
+ ".machinemode pop\n"
|
||||
+ : [facilities] "=Q"(facilities), [r0] "+r"(r0) :: "cc");
|
||||
return is_bit_set (facilities, DFLTCC_FACILITY);
|
||||
}
|
||||
|
||||
@@ -180,12 +185,12 @@ dfltcc (int fn, void *param,
|
||||
int cc;
|
||||
|
||||
__asm__ volatile (
|
||||
-#ifdef DFLTCC_USDT
|
||||
+#ifdef HAVE_SYS_SDT_H
|
||||
STAP_PROBE_ASM (zlib, dfltcc_entry,
|
||||
STAP_PROBE_ASM_TEMPLATE (5))
|
||||
#endif
|
||||
".insn rrf,0xb9390000,%[r2],%[r4],%[hist],0\n"
|
||||
-#ifdef DFLTCC_USDT
|
||||
+#ifdef HAVE_SYS_SDT_H
|
||||
STAP_PROBE_ASM (zlib, dfltcc_exit,
|
||||
STAP_PROBE_ASM_TEMPLATE (5))
|
||||
#endif
|
||||
@@ -198,7 +203,7 @@ dfltcc (int fn, void *param,
|
||||
: [r0] "r" (r0)
|
||||
, [r1] "r" (r1)
|
||||
, [hist] "r" (hist)
|
||||
-#ifdef DFLTCC_USDT
|
||||
+#ifdef HAVE_SYS_SDT_H
|
||||
, STAP_PROBE_ASM_OPERANDS (5, r2, r3, r4, r5, hist)
|
||||
#endif
|
||||
: "cc", "memory");
|
||||
@@ -264,10 +269,16 @@ init_param (union aligned_dfltcc_param_v0 *ctx)
|
||||
}
|
||||
|
||||
static void
|
||||
-bi_close_block (struct dfltcc_param_v0 *param)
|
||||
+bi_load (struct dfltcc_param_v0 *param)
|
||||
{
|
||||
bi_valid = param->sbb;
|
||||
bi_buf = bi_valid == 0 ? 0 : outbuf[outcnt] & ((1 << bi_valid) - 1);
|
||||
+}
|
||||
+
|
||||
+static void
|
||||
+bi_close_block (struct dfltcc_param_v0 *param)
|
||||
+{
|
||||
+ bi_load (param);
|
||||
send_bits (bi_reverse (param->eobs >> (15 - param->eobl), param->eobl),
|
||||
param->eobl);
|
||||
param->bcf = 0;
|
||||
@@ -278,6 +289,7 @@ close_block (struct dfltcc_param_v0 *param)
|
||||
{
|
||||
bi_close_block (param);
|
||||
bi_windup ();
|
||||
+ /* bi_windup has written out a possibly partial byte, fix up the position */
|
||||
param->sbb = (param->sbb + param->eobl) % 8;
|
||||
if (param->sbb != 0)
|
||||
{
|
||||
@@ -291,6 +303,8 @@ close_stream (struct dfltcc_param_v0 *param)
|
||||
{
|
||||
if (param->bcf)
|
||||
bi_close_block (param);
|
||||
+ else
|
||||
+ bi_load (param);
|
||||
send_bits (1, 3); /* BFINAL=1, BTYPE=00 */
|
||||
bi_windup ();
|
||||
put_short (0x0000);
|
||||
@@ -334,7 +348,16 @@ dfltcc_deflate (int pack_level)
|
||||
{
|
||||
/* Flush the output data. */
|
||||
if (outcnt > OUTBUFSIZ - 8)
|
||||
- flush_outbuf ();
|
||||
+ {
|
||||
+ if (param->sbb == 0)
|
||||
+ flush_outbuf ();
|
||||
+ else
|
||||
+ {
|
||||
+ uch partial = outbuf[outcnt];
|
||||
+ flush_outbuf ();
|
||||
+ outbuf[outcnt] = partial;
|
||||
+ }
|
||||
+ }
|
||||
|
||||
/* Close the block. */
|
||||
if (param->bcf && total_in == block_threshold && !param->cf)
|
||||
@@ -360,14 +383,16 @@ dfltcc_deflate (int pack_level)
|
||||
{
|
||||
if (total_in == 0 && block_threshold > 0)
|
||||
param->htt = HTT_FIXED;
|
||||
- else {
|
||||
- param->htt = HTT_DYNAMIC;
|
||||
- dfltcc_gdht (param);
|
||||
- }
|
||||
+ else
|
||||
+ {
|
||||
+ param->htt = HTT_DYNAMIC;
|
||||
+ dfltcc_gdht (param);
|
||||
+ }
|
||||
}
|
||||
|
||||
/* Compress inbuf into outbuf. */
|
||||
- dfltcc_cmpr_xpnd (param, DFLTCC_CMPR);
|
||||
+ while (dfltcc_cmpr_xpnd (param, DFLTCC_CMPR) == DFLTCC_CC_AGAIN)
|
||||
+ ;
|
||||
|
||||
/* Unmask the input data. */
|
||||
insize += extra;
|
||||
@@ -413,7 +438,9 @@ dfltcc_inflate (void)
|
||||
}
|
||||
|
||||
/* Decompress inbuf into outbuf. */
|
||||
- dfltcc_cc cc = dfltcc_cmpr_xpnd (param, DFLTCC_XPND);
|
||||
+ dfltcc_cc cc;
|
||||
+ while ((cc = dfltcc_cmpr_xpnd (param, DFLTCC_XPND)) == DFLTCC_CC_AGAIN)
|
||||
+ ;
|
||||
if (cc == DFLTCC_CC_OK)
|
||||
{
|
||||
/* The entire deflate stream has been successfully decompressed. */
|
||||
@@ -422,6 +449,9 @@ dfltcc_inflate (void)
|
||||
if (cc == DFLTCC_CC_OP2_CORRUPT && param->oesc != 0)
|
||||
{
|
||||
/* The deflate stream is corrupted. */
|
||||
+ fprintf (stderr, "Operation-Ending-Supplemental Code 0x%x\n",
|
||||
+ param->oesc);
|
||||
+ flush_outbuf ();
|
||||
return 2;
|
||||
}
|
||||
/* There must be more data to decompress. */
|
||||
@ -0,0 +1,12 @@
|
||||
diff --git a/tests/hufts b/tests/hufts
|
||||
index 5d8fb77..1b8ab3b 100755
|
||||
--- a/tests/hufts
|
||||
+++ b/tests/hufts
|
||||
@@ -28,6 +28,7 @@ returns_ 1 gzip -dc "$abs_srcdir/hufts-segv.gz" > out 2> err || fail=1
|
||||
compare /dev/null out || fail=1
|
||||
|
||||
sed 's/.*hufts-segv.gz: /...: /' err > k; mv k err || fail=1
|
||||
+grep -v 'Operation-Ending-Supplemental Code' err > k; mv k err || fail=1
|
||||
compare exp err || fail=1
|
||||
|
||||
Exit $fail
|
||||
Loading…
Reference in new issue