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import CS zlib-1.2.11-25.el8

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This commit is contained in:
eabdullin 2023-09-27 14:24:27 +00:00
parent 30f8cd5cc1
commit 385f68bb8e
11 changed files with 1769 additions and 685 deletions
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758
SOURCES/zlib-1.2.11-optimized-CRC32-framework.patch → SOURCES/zlib-1.2.11-Add-Power8-optimized-crc32.patch
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@ -1,139 +1,240 @@
From d1155b9ab9a2ef643ec82285d1fb767dcfd00d16 Mon Sep 17 00:00:00 2001
From: Ondrej Dubaj <odubaj@redhat.com>
Date: Thu, 1 Aug 2019 12:17:06 +0200
Subject: [PATCH] Optimized CRC32 for POWER 8+ architectures.
From 64af50f69caa52e676a3d7066c2b07ff43d33862 Mon Sep 17 00:00:00 2001
From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Thu, 2 Feb 2023 19:41:11 +0100
Subject: [PATCH] 0002-PATCH-Add-Power8-optimized-crc32.patch
---
Makefile.in | 8 +
configure | 77 ++
contrib/power8-crc/clang_workaround.h | 82 ++
contrib/power8-crc/crc32_constants.h | 1206 +++++++++++++++++++++++++
contrib/power8-crc/vec_crc32.c | 674 ++++++++++++++
crc32.c | 100 +-
6 files changed, 2135 insertions(+), 12 deletions(-)
create mode 100644 contrib/power8-crc/clang_workaround.h
create mode 100644 contrib/power8-crc/crc32_constants.h
create mode 100644 contrib/power8-crc/vec_crc32.c
CMakeLists.txt | 7 +-
Makefile.in | 43 +-
configure | 7 +-
contrib/README.contrib | 3 +-
contrib/power/clang_workaround.h | 82 ++
contrib/power/crc32_constants.h | 1206 ++++++++++++++++++++++++++++++
contrib/power/crc32_z_power8.c | 679 +++++++++++++++++
contrib/power/crc32_z_resolver.c | 15 +
contrib/power/power.h | 4 +
crc32.c | 12 +
test/crc32_test.c | 205 +++++
12 files changed, 2252 insertions(+), 14 deletions(-)
create mode 100644 contrib/power/clang_workaround.h
create mode 100644 contrib/power/crc32_constants.h
create mode 100644 contrib/power/crc32_z_power8.c
create mode 100644 contrib/power/crc32_z_resolver.c
create mode 100644 test/crc32_test.c
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e762023..abf606c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -184,7 +184,8 @@ if(CMAKE_COMPILER_IS_GNUCC)
if(POWER8)
add_definitions(-DZ_POWER8)
- set(ZLIB_POWER8 )
+ set(ZLIB_POWER8
+ contrib/power/crc32_z_power8.c)
set_source_files_properties(
${ZLIB_POWER8}
@@ -301,6 +302,10 @@ add_executable(example test/example.c)
target_link_libraries(example zlib)
add_test(example example)
+add_executable(crc32_test test/crc32_test.c)
+target_link_libraries(crc32_test zlib)
+add_test(crc32_test crc32_test)
+
add_executable(minigzip test/minigzip.c)
target_link_libraries(minigzip zlib)
diff --git a/Makefile.in b/Makefile.in
index b7bdbf2..55f6489 100644
index e756e2f..d392616 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -167,6 +167,9 @@ minigzip64.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h
adler32.o: $(SRCDIR)adler32.c
$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)adler32.c
@@ -75,11 +75,11 @@ PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA)
+crc32_power8.o: $(SRCDIR)contrib/power8-crc/vec_crc32.c
+ $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)contrib/power8-crc/vec_crc32.c
all: static shared
-static: example$(EXE) minigzip$(EXE)
+static: crc32_test$(EXE) example$(EXE) minigzip$(EXE)
-shared: examplesh$(EXE) minigzipsh$(EXE)
+shared: crc32_testsh$(EXE) examplesh$(EXE) minigzipsh$(EXE)
-all64: example64$(EXE) minigzip64$(EXE)
+all64: crc32_test64$(EXE) example64$(EXE) minigzip64$(EXE)
check: test
@@ -87,7 +87,7 @@ test: all teststatic testshared
teststatic: static
@TMPST=tmpst_$$; \
- if echo hello world | ./minigzip | ./minigzip -d && ./example $$TMPST ; then \
+ if echo hello world | ./minigzip | ./minigzip -d && ./example $$TMPST && ./crc32_test; then \
echo ' *** zlib test OK ***'; \
else \
echo ' *** zlib test FAILED ***'; false; \
@@ -100,7 +100,7 @@ testshared: shared
DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \
SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \
TMPSH=tmpsh_$$; \
- if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh $$TMPSH; then \
+ if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh $$TMPSH && ./crc32_testsh; then \
echo ' *** zlib shared test OK ***'; \
else \
echo ' *** zlib shared test FAILED ***'; false; \
@@ -109,7 +109,7 @@ testshared: shared
test64: all64
@TMP64=tmp64_$$; \
- if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64 $$TMP64; then \
+ if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64 $$TMP64 && ./crc32_test64; then \
echo ' *** zlib 64-bit test OK ***'; \
else \
echo ' *** zlib 64-bit test FAILED ***'; false; \
@@ -151,12 +151,18 @@ dfltcc.lo: $(SRCDIR)contrib/s390/dfltcc.c $(SRCDIR)zlib.h zconf.h
$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/dfltcc.o $(SRCDIR)contrib/s390/dfltcc.c
-@mv objs/dfltcc.o $@
+crc32_test.o: $(SRCDIR)test/crc32_test.c $(SRCDIR)zlib.h zconf.h
+ $(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/crc32_test.c
+
example.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/example.c
minigzip.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h
$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/minigzip.c
+crc32_test64.o: $(SRCDIR)test/crc32_test.c $(SRCDIR)zlib.h zconf.h
+ $(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/crc32_test.c
+
example64.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
$(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/example.c
@@ -170,6 +176,9 @@ adler32.o: $(SRCDIR)adler32.c
crc32.o: $(SRCDIR)crc32.c
$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)crc32.c
@@ -215,6 +218,11 @@ adler32.lo: $(SRCDIR)adler32.c
$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/adler32.o $(SRCDIR)adler32.c
-@mv objs/adler32.o $@
+crc32_power8.lo: $(SRCDIR)contrib/power8-crc/vec_crc32.c
+ -@mkdir objs 2>/dev/null || test -d objs
+ $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/crc32_power8.o $(SRCDIR)contrib/power8-crc/vec_crc32.c
+ -@mv objs/crc32_power8.o $@
+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.lo: $(SRCDIR)crc32.c
-@mkdir objs 2>/dev/null || test -d objs
deflate.o: $(SRCDIR)deflate.c
$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)deflate.c
@@ -220,6 +229,11 @@ crc32.lo: $(SRCDIR)crc32.c
$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/crc32.o $(SRCDIR)crc32.c
-@mv objs/crc32.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
+ -@mv objs/crc32_z_power8.o $@
+
deflate.lo: $(SRCDIR)deflate.c
-@mkdir objs 2>/dev/null || test -d objs
$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/deflate.o $(SRCDIR)deflate.c
@@ -293,18 +307,27 @@ placebo $(SHAREDLIBV): $(PIC_OBJS) libz.a
ln -s $@ $(SHAREDLIBM)
-@rmdir objs
+crc32_test$(EXE): crc32_test.o $(STATICLIB)
+ $(CC) $(CFLAGS) -o $@ crc32_test.o $(TEST_LDFLAGS)
+
example$(EXE): example.o $(STATICLIB)
$(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS)
minigzip$(EXE): minigzip.o $(STATICLIB)
$(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS)
+crc32_testsh$(EXE): crc32_test.o $(SHAREDLIBV)
+ $(CC) $(CFLAGS) -o $@ crc32_test.o -L. $(SHAREDLIBV)
+
examplesh$(EXE): example.o $(SHAREDLIBV)
$(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV)
minigzipsh$(EXE): minigzip.o $(SHAREDLIBV)
$(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV)
+crc32_test64$(EXE): crc32_test64.o $(STATICLIB)
+ $(CC) $(CFLAGS) -o $@ crc32_test64.o $(TEST_LDFLAGS)
+
example64$(EXE): example64.o $(STATICLIB)
$(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS)
@@ -374,8 +397,8 @@ zconf: $(SRCDIR)zconf.h.in
mostlyclean: clean
clean:
rm -f *.o *.lo *~ \
- example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
- example64$(EXE) minigzip64$(EXE) \
+ crc32_test$(EXE) example$(EXE) minigzip$(EXE) crc32_testsh$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
+ crc32_test64$(EXE) example64$(EXE) minigzip64$(EXE) \
infcover \
libz.* foo.gz so_locations \
_match.s maketree contrib/infback9/*.o
@@ -399,7 +422,7 @@ tags:
adler32.o zutil.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
gzclose.o gzlib.o gzread.o gzwrite.o: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
-compress.o example.o minigzip.o uncompr.o: $(SRCDIR)zlib.h zconf.h
+compress.o crc32_test.o example.o minigzip.o uncompr.o: $(SRCDIR)zlib.h zconf.h
crc32.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
deflate.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
infback.o inflate.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
@@ -409,7 +432,7 @@ trees.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)tr
adler32.lo zutil.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
gzclose.lo gzlib.lo gzread.lo gzwrite.lo: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
-compress.lo example.lo minigzip.lo uncompr.lo: $(SRCDIR)zlib.h zconf.h
+compress.lo crc32_test.lo example.lo minigzip.lo uncompr.lo: $(SRCDIR)zlib.h zconf.h
crc32.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
deflate.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
infback.lo inflate.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
diff --git a/configure b/configure
index cd9eeef..e93ff99 100755
index 0538d58..e37dac8 100755
--- a/configure
+++ b/configure
@@ -839,6 +839,83 @@ else
echo "Checking for sys/sdt.h ... No." | tee -a configure.log
fi
@@ -876,6 +876,9 @@ cat > $test.c <<EOF
#ifndef _ARCH_PPC
#error "Target is not Power"
#endif
+#if !(defined(__PPC64__) || defined(__powerpc64__))
+ #error "Target is not 64 bits"
+#endif
#ifndef HAVE_IFUNC
#error "Target doesn't support ifunc"
#endif
@@ -889,8 +892,8 @@ if tryboth $CC -c $CFLAGS $test.c; then
+# test to see if Power8+ implementation is compile time possible
+echo >> configure.log
+cat > $test.c <<EOF
+#if _ARCH_PWR8==1
+#if __BYTE_ORDER == __BIG_ENDIAN && defined(__clang__)
+#error "Clang vector instructions aren't big endian compatible"
+#endif
+#if defined(__BUILTIN_CPU_SUPPORTS__)
+/* good and easy */
+#else
+#include <sys/auxv.h>
+#include <bits/hwcap.h>
+int main()
+{
+ return (getauxval(AT_HWCAP2) & PPC_FEATURE2_ARCH_2_07);
+}
+#endif
+#else
+#error No Power 8 or newer architecture, may need -mcpu=power8
+#endif
+EOF
+
+if tryboth $CC -c $CFLAGS $test.c; then
+ OBJC="$OBJC crc32_power8.o"
+ PIC_OBJC="$PIC_OBJC crc32_power8.lo"
+ echo "Checking for runtime cpu detection and Power 8 (or newer) Architecture support... Yes." | tee -a configure.log
+else
+ echo "Checking for runtime cpu detection and Power 8 (or newer) Architecture support... 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 unsigned int crc32_real_optimized(unsigned int crc, unsigned char *p,
+ unsigned long len)
+{
+ return 1;
+}
+static unsigned int (*(crc32_ifunc(void)))(unsigned int, unsigned char *,unsigned long)
+{
+ return crc32_real_optimized;
+}
+unsigned int crc32(unsigned int, unsigned char *,unsigned long)
+ __attribute__ ((ifunc ("crc32_ifunc")));
+EOF
+
+if tryboth $CC -c $CFLAGS $test.c; then
+ SFLAGS="${SFLAGS} -DZ_IFUNC_NATIVE"
+ echo "Checking for attribute(ifunc) support... Yes." | tee -a configure.log
+else
+ echo "Checking for attribute(ifunc) support... No." | tee -a configure.log
+
+ # alternately can we can use a gnu indirection using __asm__ attributes to detect and load optimized code at runtime
+ echo >> configure.log
+ cat > $test.c <<EOF
+static unsigned int crc32_real_optimized(unsigned int crc, unsigned char *p,
+ unsigned long len)
+{
+ return 1;
+}
+static unsigned int (*(crc32_ifunc(void)))(unsigned int, unsigned char *,unsigned long)
+ __asm__ ("crc32");
+static unsigned int (*(crc32_ifunc(void)))(unsigned int, unsigned char *,unsigned long)
+{
+ return crc32_real_optimized;
+}
+__asm__(".type crc32, %gnu_indirect_function");
+EOF
+
+ if tryboth $CC -c $CFLAGS $test.c; then
+ SFLAGS="${SFLAGS} -DZ_IFUNC_ASM"
+ echo "Checking for asm .type %gnu_indirect_function support... Yes." | tee -a configure.log
+ else
+ echo "Checking for asm .type %gnu_indirect_function support... No." | tee -a configure.log
+ fi
+fi
+
# show the results in the log
echo >> configure.log
echo ALL = $ALL >> configure.log
diff --git a/contrib/power8-crc/clang_workaround.h b/contrib/power8-crc/clang_workaround.h
if tryboth $CC -c $CFLAGS -mcpu=power8 $test.c; then
POWER8="-DZ_POWER8"
- PIC_OBJC="${PIC_OBJC}"
- OBJC="${OBJC}"
+ PIC_OBJC="${PIC_OBJC} crc32_z_power8.lo"
+ OBJC="${OBJC} crc32_z_power8.o"
echo "Checking for -mcpu=power8 support... Yes." | tee -a configure.log
else
echo "Checking for -mcpu=power8 support... No." | tee -a configure.log
diff --git a/contrib/README.contrib b/contrib/README.contrib
index 2a53f90..5411ec6 100644
--- a/contrib/README.contrib
+++ b/contrib/README.contrib
@@ -67,7 +67,8 @@ 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>
+power/ by Daniel Black <daniel@linux.ibm.com>
+ Matheus Castanho <msc@linux.ibm.com>
and Rogerio Alves <rcardoso@linux.ibm.com>
Optimized functions for Power processors
diff --git a/contrib/power/clang_workaround.h b/contrib/power/clang_workaround.h
new file mode 100644
index 0000000..09c411b
index 0000000..b5e7dae
--- /dev/null
+++ b/contrib/power8-crc/clang_workaround.h
+++ b/contrib/power/clang_workaround.h
@@ -0,0 +1,82 @@
+#ifndef CLANG_WORKAROUNDS_H
+#define CLANG_WORKAROUNDS_H
@ -217,12 +318,11 @@ index 0000000..09c411b
+#endif /* vec_xxpermdi */
+
+#endif
\ No newline at end of file
diff --git a/contrib/power8-crc/crc32_constants.h b/contrib/power8-crc/crc32_constants.h
diff --git a/contrib/power/crc32_constants.h b/contrib/power/crc32_constants.h
new file mode 100644
index 0000000..58088dc
--- /dev/null
+++ b/contrib/power8-crc/crc32_constants.h
+++ b/contrib/power/crc32_constants.h
@@ -0,0 +1,1206 @@
+/*
+*
@ -1430,12 +1530,12 @@ index 0000000..58088dc
+#endif /* POWER8_INTRINSICS */
+
+#endif /* __ASSEMBLER__ */
diff --git a/contrib/power8-crc/vec_crc32.c b/contrib/power8-crc/vec_crc32.c
diff --git a/contrib/power/crc32_z_power8.c b/contrib/power/crc32_z_power8.c
new file mode 100644
index 0000000..bb2204b
index 0000000..7858cfe
--- /dev/null
+++ b/contrib/power8-crc/vec_crc32.c
@@ -0,0 +1,674 @@
+++ b/contrib/power/crc32_z_power8.c
@@ -0,0 +1,679 @@
+/*
+ * Calculate the checksum of data that is 16 byte aligned and a multiple of
+ * 16 bytes.
@ -1468,6 +1568,8 @@ index 0000000..bb2204b
+ */
+
+#include <altivec.h>
+#include "../../zutil.h"
+#include "power.h"
+
+#define POWER8_INTRINSICS
+#define CRC_TABLE
@ -1502,16 +1604,18 @@ index 0000000..bb2204b
+static unsigned int __attribute__ ((aligned (32)))
+__crc32_vpmsum(unsigned int crc, const void* p, unsigned long len);
+
+#ifndef CRC32_FUNCTION
+#define CRC32_FUNCTION crc32_vpmsum
+#endif
+
+unsigned int CRC32_FUNCTION(unsigned int crc, const unsigned char *p,
+ unsigned long len)
+unsigned long ZLIB_INTERNAL _crc32_z_power8(uLong _crc, const Bytef *_p,
+ z_size_t _len)
+{
+ unsigned int prealign;
+ unsigned int tail;
+
+ /* Map zlib API to crc32_vpmsum API */
+ unsigned int crc = (unsigned int) (0xffffffff & _crc);
+ const unsigned char *p = _p;
+ unsigned long len = (unsigned long) _len;
+
+ if (p == (const unsigned char *) 0x0) return 0;
+#ifdef CRC_XOR
+ crc ^= 0xffffffff;
+#endif
@ -1541,7 +1645,8 @@ index 0000000..bb2204b
+ crc ^= 0xffffffff;
+#endif
+
+ return crc;
+ /* Convert to zlib API */
+ return (unsigned long) crc;
+}
+
+#if defined (__clang__)
@ -2110,149 +2215,280 @@ index 0000000..bb2204b
+
+ return result;
+}
diff --git a/contrib/power/crc32_z_resolver.c b/contrib/power/crc32_z_resolver.c
new file mode 100644
index 0000000..f4e9aa4
--- /dev/null
+++ b/contrib/power/crc32_z_resolver.c
@@ -0,0 +1,15 @@
+/* Copyright (C) 2019 Matheus Castanho <msc@linux.ibm.com>, IBM
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "../gcc/zifunc.h"
+#include "power.h"
+
+Z_IFUNC(crc32_z) {
+#ifdef Z_POWER8
+ if (__builtin_cpu_supports("arch_2_07"))
+ return _crc32_z_power8;
+#endif
+
+ return crc32_z_default;
+}
diff --git a/contrib/power/power.h b/contrib/power/power.h
index b42c7d6..79123aa 100644
--- a/contrib/power/power.h
+++ b/contrib/power/power.h
@@ -2,3 +2,7 @@
* 2019 Rogerio Alves <rogerio.alves@ibm.com>, IBM
* For conditions of distribution and use, see copyright notice in zlib.h
*/
+
+#include "../../zconf.h"
+
+unsigned long _crc32_z_power8(unsigned long, const Bytef *, z_size_t);
diff --git a/crc32.c b/crc32.c
index 9580440..406d350 100644
index 9580440..b0cda20 100644
--- a/crc32.c
+++ b/crc32.c
@@ -199,13 +199,78 @@ const z_crc_t FAR * ZEXPORT get_crc_table()
@@ -199,6 +199,13 @@ const z_crc_t FAR * ZEXPORT get_crc_table()
#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1
/* ========================================================================= */
-unsigned long ZEXPORT crc32_z(crc, buf, len)
+local
+unsigned long ZEXPORT crc32_table_lookup(crc, buf, len)
+#ifdef Z_POWER_OPT
+/* 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 */
+
unsigned long ZEXPORT crc32_z(crc, buf, len)
unsigned long crc;
const unsigned char FAR *buf;
z_size_t len;
{
if (buf == Z_NULL) return 0UL;
+ crc = crc ^ 0xffffffffUL;
+ while (len >= 8) {
+ DO8;
+ len -= 8;
+ }
+ if (len) do {
+ DO1;
+ } while (--len);
+ return crc ^ 0xffffffffUL;
+}
+
+/* Small helper function to compare optfun against the reference table lookup
+ * return test_ref_comparision_##optfn in crc32_z_ifunc
+#include <assert.h>
+#define TEST_COMPARE(optfn) \
+ static unsigned long test_ref_comparision_ ## optfn(unsigned long crc, const unsigned char FAR *p, z_size_t len) \
+ { \
+ unsigned long crc_tbl_lookup = crc32_table_lookup(crc, p, len); \
+ unsigned long optcrc = optfn(crc, p, len); \
+ assert( optcrc == crc_tbl_lookup ); \
+ return optcrc; \
+ }
+*/
+
+#ifdef Z_IFUNC_ASM
+unsigned long (*(crc32_z_ifunc(void)))(unsigned long, const unsigned char FAR *, z_size_t)
+ __asm__ ("crc32_z");
+__asm__(".type crc32_z, %gnu_indirect_function");
+#elif defined(Z_IFUNC_NATIVE)
+unsigned long ZEXPORT crc32_z(
+ unsigned long crc,
+ const unsigned char FAR *buf,
+ z_size_t len)
+ __attribute__ ((ifunc ("crc32_z_ifunc")));
+#endif
+
+#if _ARCH_PWR8==1
+unsigned long crc32_vpmsum(unsigned long, const unsigned char FAR *, z_size_t);
+/* for testing TEST_COMPARE(crc32_vpmsum) */
+#ifndef __BUILTIN_CPU_SUPPORTS__
+#include <sys/auxv.h>
+#include <bits/hwcap.h>
+#endif
+#endif
+
+/* due to a quirk of gnu_indirect_function - "local" (aka static) is applied to
+ * crc32_z which is not desired. crc32_z_ifunc is implictly "local" */
+#ifndef Z_IFUNC_ASM
+local
+#endif
+unsigned long (*(crc32_z_ifunc(void)))(unsigned long, const unsigned char FAR *, z_size_t)
+{
+#if _ARCH_PWR8==1
+#if defined(__BUILTIN_CPU_SUPPORTS__)
+ if (__builtin_cpu_supports("arch_2_07"))
+ return crc32_vpmsum;
+#else
+ if (getauxval(AT_HWCAP2) & PPC_FEATURE2_ARCH_2_07)
+ return crc32_vpmsum;
+#endif
+#endif /* _ARCH_PWR8 */
+
+/* return a function pointer for optimized arches here */
+
#ifdef DYNAMIC_CRC_TABLE
if (crc_table_empty)
make_crc_table();
@@ -217,22 +282,31 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
endian = 1;
if (*((unsigned char *)(&endian)))
- return crc32_little(crc, buf, len);
+ return crc32_little;
else
- return crc32_big(crc, buf, len);
+ return crc32_big;
}
#endif /* BYFOUR */
- crc = crc ^ 0xffffffffUL;
- while (len >= 8) {
- DO8;
- len -= 8;
- }
- if (len) do {
- DO1;
- } while (--len);
- return crc ^ 0xffffffffUL;
+
+ return crc32_table_lookup;
@@ -233,6 +240,11 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
return crc ^ 0xffffffffUL;
}
+#if !defined(Z_IFUNC_ASM) && !defined(Z_IFUNC_NATIVE)
+
+unsigned long ZEXPORT crc32_z(crc, buf, len)
+ unsigned long crc;
+ const unsigned char FAR *buf;
+ z_size_t len;
+{
+ static unsigned long ZEXPORT (*crc32_func)(unsigned long, const unsigned char FAR *, z_size_t) = NULL;
+
+ if (!crc32_func)
+ crc32_func = crc32_z_ifunc();
+ return (*crc32_func)(crc, buf, len);
+}
+
+#endif /* defined(Z_IFUNC_ASM) || defined(Z_IFUNC_NATIVE) */
+#ifdef Z_POWER_OPT
+#undef crc32_z
+#include "contrib/power/crc32_z_resolver.c"
+#endif /* Z_POWER_OPT */
+
/* ========================================================================= */
unsigned long ZEXPORT crc32(crc, buf, len)
unsigned long crc;
@@ -271,6 +345,7 @@ local unsigned long crc32_little(crc, buf, len)
register z_crc_t c;
register const z_crc_t FAR *buf4;
+ if (buf == Z_NULL) return 0UL;
c = (z_crc_t)crc;
c = ~c;
while (len && ((ptrdiff_t)buf & 3)) {
@@ -311,6 +386,7 @@ local unsigned long crc32_big(crc, buf, len)
register z_crc_t c;
register const z_crc_t FAR *buf4;
+ if (buf == Z_NULL) return 0UL;
c = ZSWAP32((z_crc_t)crc);
c = ~c;
while (len && ((ptrdiff_t)buf & 3)) {
diff --git a/test/crc32_test.c b/test/crc32_test.c
new file mode 100644
index 0000000..3155553
--- /dev/null
+++ b/test/crc32_test.c
@@ -0,0 +1,205 @@
+/* crc32_tes.c -- unit test for crc32 in the zlib compression library
+ * Copyright (C) 1995-2006, 2010, 2011, 2016, 2019 Rogerio Alves
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zlib.h"
+#include <stdio.h>
+
+#ifdef STDC
+# include <string.h>
+# include <stdlib.h>
+#endif
+
+void test_crc32 OF((uLong crc, Byte* buf, z_size_t len, uLong chk, int line));
+int main OF((void));
+
+typedef struct {
+ int line;
+ uLong crc;
+ char* buf;
+ int len;
+ uLong expect;
+} crc32_test;
+
+void test_crc32(crc, buf, len, chk, line)
+ uLong crc;
+ Byte *buf;
+ z_size_t len;
+ uLong chk;
+ int line;
+{
+ uLong res = crc32(crc, buf, len);
+ if (res != chk) {
+ fprintf(stderr, "FAIL [%d]: crc32 returned 0x%08X expected 0x%08X\n",
+ line, (unsigned int)res, (unsigned int)chk);
+ exit(1);
+ }
+}
+
+static const crc32_test tests[] = {
+ {__LINE__, 0x0, 0x0, 0, 0x0},
+ {__LINE__, 0xffffffff, 0x0, 0, 0x0},
+ {__LINE__, 0x0, 0x0, 255, 0x0}, /* BZ 174799. */
+ {__LINE__, 0x0, 0x0, 256, 0x0},
+ {__LINE__, 0x0, 0x0, 257, 0x0},
+ {__LINE__, 0x0, 0x0, 32767, 0x0},
+ {__LINE__, 0x0, 0x0, 32768, 0x0},
+ {__LINE__, 0x0, 0x0, 32769, 0x0},
+ {__LINE__, 0x0, "", 0, 0x0},
+ {__LINE__, 0xffffffff, "", 0, 0xffffffff},
+ {__LINE__, 0x0, "abacus", 6, 0xc3d7115b},
+ {__LINE__, 0x0, "backlog", 7, 0x269205},
+ {__LINE__, 0x0, "campfire", 8, 0x22a515f8},
+ {__LINE__, 0x0, "delta", 5, 0x9643fed9},
+ {__LINE__, 0x0, "executable", 10, 0xd68eda01},
+ {__LINE__, 0x0, "file", 4, 0x8c9f3610},
+ {__LINE__, 0x0, "greatest", 8, 0xc1abd6cd},
+ {__LINE__, 0x0, "hello", 5, 0x3610a686},
+ {__LINE__, 0x0, "inverter", 8, 0xc9e962c9},
+ {__LINE__, 0x0, "jigsaw", 6, 0xce4e3f69},
+ {__LINE__, 0x0, "karate", 6, 0x890be0e2},
+ {__LINE__, 0x0, "landscape", 9, 0xc4e0330b},
+ {__LINE__, 0x0, "machine", 7, 0x1505df84},
+ {__LINE__, 0x0, "nanometer", 9, 0xd4e19f39},
+ {__LINE__, 0x0, "oblivion", 8, 0xdae9de77},
+ {__LINE__, 0x0, "panama", 6, 0x66b8979c},
+ {__LINE__, 0x0, "quest", 5, 0x4317f817},
+ {__LINE__, 0x0, "resource", 8, 0xbc91f416},
+ {__LINE__, 0x0, "secret", 6, 0x5ca2e8e5},
+ {__LINE__, 0x0, "test", 4, 0xd87f7e0c},
+ {__LINE__, 0x0, "ultimate", 8, 0x3fc79b0b},
+ {__LINE__, 0x0, "vector", 6, 0x1b6e485b},
+ {__LINE__, 0x0, "walrus", 6, 0xbe769b97},
+ {__LINE__, 0x0, "xeno", 4, 0xe7a06444},
+ {__LINE__, 0x0, "yelling", 7, 0xfe3944e5},
+ {__LINE__, 0x0, "zlib", 4, 0x73887d3a},
+ {__LINE__, 0x0, "4BJD7PocN1VqX0jXVpWB", 20, 0xd487a5a1},
+ {__LINE__, 0x0, "F1rPWI7XvDs6nAIRx41l", 20, 0x61a0132e},
+ {__LINE__, 0x0, "ldhKlsVkPFOveXgkGtC2", 20, 0xdf02f76},
+ {__LINE__, 0x0, "5KKnGOOrs8BvJ35iKTOS", 20, 0x579b2b0a},
+ {__LINE__, 0x0, "0l1tw7GOcem06Ddu7yn4", 20, 0xf7d16e2d},
+ {__LINE__, 0x0, "MCr47CjPIn9R1IvE1Tm5", 20, 0x731788f5},
+ {__LINE__, 0x0, "UcixbzPKTIv0SvILHVdO", 20, 0x7112bb11},
+ {__LINE__, 0x0, "dGnAyAhRQDsWw0ESou24", 20, 0xf32a0dac},
+ {__LINE__, 0x0, "di0nvmY9UYMYDh0r45XT", 20, 0x625437bb},
+ {__LINE__, 0x0, "2XKDwHfAhFsV0RhbqtvH", 20, 0x896930f9},
+ {__LINE__, 0x0, "ZhrANFIiIvRnqClIVyeD", 20, 0x8579a37},
+ {__LINE__, 0x0, "v7Q9ehzioTOVeDIZioT1", 20, 0x632aa8e0},
+ {__LINE__, 0x0, "Yod5hEeKcYqyhfXbhxj2", 20, 0xc829af29},
+ {__LINE__, 0x0, "GehSWY2ay4uUKhehXYb0", 20, 0x1b08b7e8},
+ {__LINE__, 0x0, "kwytJmq6UqpflV8Y8GoE", 20, 0x4e33b192},
+ {__LINE__, 0x0, "70684206568419061514", 20, 0x59a179f0},
+ {__LINE__, 0x0, "42015093765128581010", 20, 0xcd1013d7},
+ {__LINE__, 0x0, "88214814356148806939", 20, 0xab927546},
+ {__LINE__, 0x0, "43472694284527343838", 20, 0x11f3b20c},
+ {__LINE__, 0x0, "49769333513942933689", 20, 0xd562d4ca},
+ {__LINE__, 0x0, "54979784887993251199", 20, 0x233395f7},
+ {__LINE__, 0x0, "58360544869206793220", 20, 0x2d167fd5},
+ {__LINE__, 0x0, "27347953487840714234", 20, 0x8b5108ba},
+ {__LINE__, 0x0, "07650690295365319082", 20, 0xc46b3cd8},
+ {__LINE__, 0x0, "42655507906821911703", 20, 0xc10b2662},
+ {__LINE__, 0x0, "29977409200786225655", 20, 0xc9a0f9d2},
+ {__LINE__, 0x0, "85181542907229116674", 20, 0x9341357b},
+ {__LINE__, 0x0, "87963594337989416799", 20, 0xf0424937},
+ {__LINE__, 0x0, "21395988329504168551", 20, 0xd7c4c31f},
+ {__LINE__, 0x0, "51991013580943379423", 20, 0xf11edcc4},
+ {__LINE__, 0x0, "*]+@!);({_$;}[_},?{?;(_?,=-][@", 30, 0x40795df4},
+ {__LINE__, 0x0, "_@:_).&(#.[:[{[:)$++-($_;@[)}+", 30, 0xdd61a631},
+ {__LINE__, 0x0, "&[!,[$_==}+.]@!;*(+},[;:)$;)-@", 30, 0xca907a99},
+ {__LINE__, 0x0, "]{.[.+?+[[=;[?}_#&;[=)__$$:+=_", 30, 0xf652deac},
+ {__LINE__, 0x0, "-%.)=/[@].:.(:,()$;=%@-$?]{%+%", 30, 0xaf39a5a9},
+ {__LINE__, 0x0, "+]#$(@&.=:,*];/.!]%/{:){:@(;)$", 30, 0x6bebb4cf},
+ {__LINE__, 0x0, ")-._.:?[&:.=+}(*$/=!.${;(=$@!}", 30, 0x76430bac},
+ {__LINE__, 0x0, ":(_*&%/[[}+,?#$&*+#[([*-/#;%(]", 30, 0x6c80c388},
+ {__LINE__, 0x0, "{[#-;:$/{)(+[}#]/{&!%(@)%:@-$:", 30, 0xd54d977d},
+ {__LINE__, 0x0, "_{$*,}(&,@.)):=!/%(&(,,-?$}}}!", 30, 0xe3966ad5},
+ {__LINE__, 0x0, "e$98KNzqaV)Y:2X?]77].{gKRD4G5{mHZk,Z)SpU%L3FSgv!Wb8MLAFdi{+fp)c,@8m6v)yXg@]HBDFk?.4&}g5_udE*JHCiH=aL", 100, 0xe7c71db9},
+ {__LINE__, 0x0, "r*Fd}ef+5RJQ;+W=4jTR9)R*p!B;]Ed7tkrLi;88U7g@3v!5pk2X6D)vt,.@N8c]@yyEcKi[vwUu@.Ppm@C6%Mv*3Nw}Y,58_aH)", 100, 0xeaa52777},
+ {__LINE__, 0x0, "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&", 100, 0xcd472048},
+ {__LINE__, 0x7a30360d, "abacus", 6, 0xf8655a84},
+ {__LINE__, 0x6fd767ee, "backlog", 7, 0x1ed834b1},
+ {__LINE__, 0xefeb7589, "campfire", 8, 0x686cfca},
+ {__LINE__, 0x61cf7e6b, "delta", 5, 0x1554e4b1},
+ {__LINE__, 0xdc712e2, "executable", 10, 0x761b4254},
+ {__LINE__, 0xad23c7fd, "file", 4, 0x7abdd09b},
+ {__LINE__, 0x85cb2317, "greatest", 8, 0x4ba91c6b},
+ {__LINE__, 0x9eed31b0, "inverter", 8, 0xd5e78ba5},
+ {__LINE__, 0xb94f34ca, "jigsaw", 6, 0x23649109},
+ {__LINE__, 0xab058a2, "karate", 6, 0xc5591f41},
+ {__LINE__, 0x5bff2b7a, "landscape", 9, 0xf10eb644},
+ {__LINE__, 0x605c9a5f, "machine", 7, 0xbaa0a636},
+ {__LINE__, 0x51bdeea5, "nanometer", 9, 0x6af89afb},
+ {__LINE__, 0x85c21c79, "oblivion", 8, 0xecae222b},
+ {__LINE__, 0x97216f56, "panama", 6, 0x47dffac4},
+ {__LINE__, 0x18444af2, "quest", 5, 0x70c2fe36},
+ {__LINE__, 0xbe6ce359, "resource", 8, 0x1471d925},
+ {__LINE__, 0x843071f1, "secret", 6, 0x50c9a0db},
+ {__LINE__, 0xf2480c60, "ultimate", 8, 0xf973daf8},
+ {__LINE__, 0x2d2feb3d, "vector", 6, 0x344ac03d},
+ {__LINE__, 0x7490310a, "walrus", 6, 0x6d1408ef},
+ {__LINE__, 0x97d247d4, "xeno", 4, 0xe62670b5},
+ {__LINE__, 0x93cf7599, "yelling", 7, 0x1b36da38},
+ {__LINE__, 0x73c84278, "zlib", 4, 0x6432d127},
+ {__LINE__, 0x228a87d1, "4BJD7PocN1VqX0jXVpWB", 20, 0x997107d0},
+ {__LINE__, 0xa7a048d0, "F1rPWI7XvDs6nAIRx41l", 20, 0xdc567274},
+ {__LINE__, 0x1f0ded40, "ldhKlsVkPFOveXgkGtC2", 20, 0xdcc63870},
+ {__LINE__, 0xa804a62f, "5KKnGOOrs8BvJ35iKTOS", 20, 0x6926cffd},
+ {__LINE__, 0x508fae6a, "0l1tw7GOcem06Ddu7yn4", 20, 0xb52b38bc},
+ {__LINE__, 0xe5adaf4f, "MCr47CjPIn9R1IvE1Tm5", 20, 0xf83b8178},
+ {__LINE__, 0x67136a40, "UcixbzPKTIv0SvILHVdO", 20, 0xc5213070},
+ {__LINE__, 0xb00c4a10, "dGnAyAhRQDsWw0ESou24", 20, 0xbc7648b0},
+ {__LINE__, 0x2e0c84b5, "di0nvmY9UYMYDh0r45XT", 20, 0xd8123a72},
+ {__LINE__, 0x81238d44, "2XKDwHfAhFsV0RhbqtvH", 20, 0xd5ac5620},
+ {__LINE__, 0xf853aa92, "ZhrANFIiIvRnqClIVyeD", 20, 0xceae099d},
+ {__LINE__, 0x5a692325, "v7Q9ehzioTOVeDIZioT1", 20, 0xb07d2b24},
+ {__LINE__, 0x3275b9f, "Yod5hEeKcYqyhfXbhxj2", 20, 0x24ce91df},
+ {__LINE__, 0x38371feb, "GehSWY2ay4uUKhehXYb0", 20, 0x707b3b30},
+ {__LINE__, 0xafc8bf62, "kwytJmq6UqpflV8Y8GoE", 20, 0x16abc6a9},
+ {__LINE__, 0x9b07db73, "70684206568419061514", 20, 0xae1fb7b7},
+ {__LINE__, 0xe75b214, "42015093765128581010", 20, 0xd4eecd2d},
+ {__LINE__, 0x72d0fe6f, "88214814356148806939", 20, 0x4660ec7},
+ {__LINE__, 0xf857a4b1, "43472694284527343838", 20, 0xfd8afdf7},
+ {__LINE__, 0x54b8e14, "49769333513942933689", 20, 0xc6d1b5f2},
+ {__LINE__, 0xd6aa5616, "54979784887993251199", 20, 0x32476461},
+ {__LINE__, 0x11e63098, "58360544869206793220", 20, 0xd917cf1a},
+ {__LINE__, 0xbe92385, "27347953487840714234", 20, 0x4ad14a12},
+ {__LINE__, 0x49511de0, "07650690295365319082", 20, 0xe37b5c6c},
+ {__LINE__, 0x3db13bc1, "42655507906821911703", 20, 0x7cc497f1},
+ {__LINE__, 0xbb899bea, "29977409200786225655", 20, 0x99781bb2},
+ {__LINE__, 0xf6cd9436, "85181542907229116674", 20, 0x132256a1},
+ {__LINE__, 0x9109e6c3, "87963594337989416799", 20, 0xbfdb2c83},
+ {__LINE__, 0x75770fc, "21395988329504168551", 20, 0x8d9d1e81},
+ {__LINE__, 0x69b1d19b, "51991013580943379423", 20, 0x7b6d4404},
+ {__LINE__, 0xc6132975, "*]+@!);({_$;}[_},?{?;(_?,=-][@", 30, 0x8619f010},
+ {__LINE__, 0xd58cb00c, "_@:_).&(#.[:[{[:)$++-($_;@[)}+", 30, 0x15746ac3},
+ {__LINE__, 0xb63b8caa, "&[!,[$_==}+.]@!;*(+},[;:)$;)-@", 30, 0xaccf812f},
+ {__LINE__, 0x8a45a2b8, "]{.[.+?+[[=;[?}_#&;[=)__$$:+=_", 30, 0x78af45de},
+ {__LINE__, 0xcbe95b78, "-%.)=/[@].:.(:,()$;=%@-$?]{%+%", 30, 0x25b06b59},
+ {__LINE__, 0x4ef8a54b, "+]#$(@&.=:,*];/.!]%/{:){:@(;)$", 30, 0x4ba0d08f},
+ {__LINE__, 0x76ad267a, ")-._.:?[&:.=+}(*$/=!.${;(=$@!}", 30, 0xe26b6aac},
+ {__LINE__, 0x569e613c, ":(_*&%/[[}+,?#$&*+#[([*-/#;%(]", 30, 0x7e2b0a66},
+ {__LINE__, 0x36aa61da, "{[#-;:$/{)(+[}#]/{&!%(@)%:@-$:", 30, 0xb3430dc7},
+ {__LINE__, 0xf67222df, "_{$*,}(&,@.)):=!/%(&(,,-?$}}}!", 30, 0x626c17a},
+ {__LINE__, 0x74b34fd3, "e$98KNzqaV)Y:2X?]77].{gKRD4G5{mHZk,Z)SpU%L3FSgv!Wb8MLAFdi{+fp)c,@8m6v)yXg@]HBDFk?.4&}g5_udE*JHCiH=aL", 100, 0xccf98060},
+ {__LINE__, 0x351fd770, "r*Fd}ef+5RJQ;+W=4jTR9)R*p!B;]Ed7tkrLi;88U7g@3v!5pk2X6D)vt,.@N8c]@yyEcKi[vwUu@.Ppm@C6%Mv*3Nw}Y,58_aH)", 100, 0xd8b95312},
+ {__LINE__, 0xc45aef77, "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&", 100, 0xbb1c9912},
+ {__LINE__, 0xc45aef77, "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&", 600, 0x888AFA5B}
+};
+
+static const int test_size = sizeof(tests) / sizeof(tests[0]);
+
+int main(void)
+{
+ int i;
+ for (i = 0; i < test_size; i++) {
+ test_crc32(tests[i].crc, (Byte*) tests[i].buf, tests[i].len,
+ tests[i].expect, tests[i].line);
+ }
+ return 0;
+}
--
2.19.1
2.39.1

73
SOURCES/zlib-1.2.11-Fix-broken-libxml2-for-python311.patch Normal file
View File

@ -0,0 +1,73 @@
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 Normal file
View File

@ -0,0 +1,54 @@
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

17
SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix-crash-deflateBound.patch Normal file
View File

@ -0,0 +1,17 @@
--- zlib-1.2.11/contrib/s390/dfltcc_deflate.h.old 2023-05-04 09:39:23.423753908 +0000
+++ zlib-1.2.11/contrib/s390/dfltcc_deflate.h 2023-05-04 09:39:48.087753908 +0000
@@ -45,11 +45,11 @@ int ZLIB_INTERNAL dfltcc_deflate_get_dic
#define DEFLATE_DONE dfltcc_deflate_done
#define DEFLATE_BOUND_ADJUST_COMPLEN(strm, complen, source_len) \
do { \
- if (dfltcc_can_deflate((strm))) \
+ if (deflateStateCheck((strm)) || dfltcc_can_deflate((strm))) \
(complen) = DEFLATE_BOUND_COMPLEN(source_len); \
} while (0)
#define DEFLATE_NEED_CONSERVATIVE_BOUND(strm) (dfltcc_can_deflate((strm)))
#define DEFLATE_HOOK dfltcc_deflate
#define DEFLATE_NEED_CHECKSUM(strm) (!dfltcc_can_deflate((strm)))
-#endif
\ No newline at end of file
+#endif

299
SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-inflate-small-window.patch Normal file
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 Normal file
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 Normal file
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

49
SOURCES/zlib-1.2.11-covscan-issues.patch
View File

@ -9,19 +9,6 @@ Subject: [PATCH] fixed covscan issues
test/crc32_test.c | 8 ++++----
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/crc32.c b/crc32.c
index 406d350..34132ea 100644
--- a/crc32.c
+++ b/crc32.c
@@ -302,7 +302,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
if (!crc32_func)
crc32_func = crc32_z_ifunc();
- return (*crc32_func)(crc, buf, len);
+ return (*crc32_func)(crc, buf, len);
}
#endif /* defined(Z_IFUNC_ASM) || defined(Z_IFUNC_NATIVE) */
diff --git a/deflate.c b/deflate.c
index 089285a..9b09718 100644
--- a/deflate.c
@ -35,40 +22,4 @@ index 089285a..9b09718 100644
bstate = DEFLATE_HOOK(strm, flush, &bstate) ? bstate :
s->level == 0 ? deflate_stored(s, flush) :
diff --git a/test/crc32_test.c b/test/crc32_test.c
index 5d73128..2d2a6c7 100644
--- a/test/crc32_test.c
+++ b/test/crc32_test.c
@@ -11,25 +11,25 @@
# include <stdlib.h>
#endif
-void test_crc32 OF((uLong crc, Byte* buf, z_size_t len, uLong chk, int line));
+void test_crc32 OF((uLong crc, char* buf, z_size_t len, uLong chk, int line));
int main OF((void));
typedef struct {
int line;
uLong crc;
- Byte* buf;
+ char* buf;
int len;
uLong expect;
} crc32_test;
void test_crc32(crc, buf, len, chk, line)
uLong crc;
- Byte *buf;
+ char *buf;
z_size_t len;
uLong chk;
int line;
{
- uLong res = crc32(crc, buf, len);
+ uLong res = crc32(crc, (Bytef *) buf, len);
if (res != chk) {
fprintf(stderr, "FAIL [%d]: crc32 returned 0x%08X expected 0x%08X\n",
line, (unsigned int)res, (unsigned int)chk);
--
2.19.1

365
SOURCES/zlib-1.2.11-firefox-crash-fix.patch
View File

@ -1,365 +0,0 @@
From 27a84de4a30cd35f8565937397f6d1205b912818 Mon Sep 17 00:00:00 2001
From: Ondrej Dubaj <odubaj@redhat.com>
Date: Thu, 5 Sep 2019 09:16:35 +0200
Subject: [PATCH 1/2] fix: power8 crc32 - return 0 with 0 ptr passed
---
contrib/power8-crc/vec_crc32.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/contrib/power8-crc/vec_crc32.c b/contrib/power8-crc/vec_crc32.c
index bb2204b..5ce9cd2 100644
--- a/contrib/power8-crc/vec_crc32.c
+++ b/contrib/power8-crc/vec_crc32.c
@@ -74,6 +74,7 @@ unsigned int CRC32_FUNCTION(unsigned int crc, const unsigned char *p,
unsigned int prealign;
unsigned int tail;
+ if (p == (const unsigned char *) 0x0) return 0;
#ifdef CRC_XOR
crc ^= 0xffffffff;
#endif
--
2.19.1
From c066ac92982a2ffe5b1e9bd36000058927437bd5 Mon Sep 17 00:00:00 2001
From: Ondrej Dubaj <odubaj@redhat.com>
Date: Thu, 5 Sep 2019 09:36:47 +0200
Subject: [PATCH 2/2] Add CRC32 tests (crc32_test)
This commit includes a CRC32 test (crc32_test). This tests are important
since some architectures may want include CPU dependent optimizations for
CRC32 algorithm like using vector instructions and we may want to
validate those.
---
Makefile.in | 35 +++++---
test/crc32_test.c | 205 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 230 insertions(+), 10 deletions(-)
create mode 100644 test/crc32_test.c
diff --git a/Makefile.in b/Makefile.in
index 40b5cfb..6070dcc 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -75,11 +75,11 @@ PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA)
all: static shared
-static: example$(EXE) minigzip$(EXE)
+static: crc32_test$(EXE) example$(EXE) minigzip$(EXE)
-shared: examplesh$(EXE) minigzipsh$(EXE)
+shared: crc32_testsh$(EXE) examplesh$(EXE) minigzipsh$(EXE)
-all64: example64$(EXE) minigzip64$(EXE)
+all64: crc32_test64$(EXE) example64$(EXE) minigzip64$(EXE)
check: test
@@ -87,7 +87,7 @@ test: all teststatic testshared
teststatic: static
@TMPST=tmpst_$$; \
- if echo hello world | ./minigzip | ./minigzip -d && ./example $$TMPST ; then \
+ if echo hello world | ./minigzip | ./minigzip -d && ./example $$TMPST && ./crc32_test; then \
echo ' *** zlib test OK ***'; \
else \
echo ' *** zlib test FAILED ***'; false; \
@@ -100,7 +100,7 @@ testshared: shared
DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \
SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \
TMPSH=tmpsh_$$; \
- if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh $$TMPSH; then \
+ if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh $$TMPSH && ./crc32_testsh; then \
echo ' *** zlib shared test OK ***'; \
else \
echo ' *** zlib shared test FAILED ***'; false; \
@@ -109,7 +109,7 @@ testshared: shared
test64: all64
@TMP64=tmp64_$$; \
- if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64 $$TMP64; then \
+ if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64 $$TMP64 && ./crc32_test64; then \
echo ' *** zlib 64-bit test OK ***'; \
else \
echo ' *** zlib 64-bit test FAILED ***'; false; \
@@ -157,6 +157,12 @@ example.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
minigzip.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h
$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/minigzip.c
+crc32_test.o: $(SRCDIR)test/crc32_test.c $(SRCDIR)zlib.h zconf.h
+ $(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/crc32_test.c
+
+crc32_test64.o: $(SRCDIR)test/crc32_test.c $(SRCDIR)zlib.h zconf.h
+ $(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/crc32_test.c
+
example64.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
$(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/example.c
@@ -307,12 +313,21 @@ example$(EXE): example.o $(STATICLIB)
minigzip$(EXE): minigzip.o $(STATICLIB)
$(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS)
+crc32_test$(EXE): crc32_test.o $(STATICLIB)
+ $(CC) $(CFLAGS) -o $@ crc32_test.o $(TEST_LDFLAGS)
+
+crc32_testsh$(EXE): crc32_test.o $(SHAREDLIBV)
+ $(CC) $(CFLAGS) -o $@ crc32_test.o -L. $(SHAREDLIBV)
+
examplesh$(EXE): example.o $(SHAREDLIBV)
$(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV)
minigzipsh$(EXE): minigzip.o $(SHAREDLIBV)
$(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV)
+crc32_test64$(EXE): crc32_test64.o $(STATICLIB)
+ $(CC) $(CFLAGS) -o $@ crc32_test64.o $(TEST_LDFLAGS)
+
example64$(EXE): example64.o $(STATICLIB)
$(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS)
@@ -382,8 +397,8 @@ zconf: $(SRCDIR)zconf.h.in
mostlyclean: clean
clean:
rm -f *.o *.lo *~ \
- example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
- example64$(EXE) minigzip64$(EXE) \
+ crc32_test$(EXE) example$(EXE) minigzip$(EXE) crc32_testsh$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
+ crc32_test64$(EXE) example64$(EXE) minigzip64$(EXE) \
infcover \
libz.* foo.gz so_locations \
_match.s maketree contrib/infback9/*.o
@@ -407,7 +422,7 @@ tags:
adler32.o zutil.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
gzclose.o gzlib.o gzread.o gzwrite.o: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
-compress.o example.o minigzip.o uncompr.o: $(SRCDIR)zlib.h zconf.h
+compress.o crc32_test.o example.o minigzip.o uncompr.o: $(SRCDIR)zlib.h zconf.h
crc32.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
deflate.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
infback.o inflate.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
@@ -417,7 +432,7 @@ trees.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)tr
adler32.lo zutil.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
gzclose.lo gzlib.lo gzread.lo gzwrite.lo: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
-compress.lo example.lo minigzip.lo uncompr.lo: $(SRCDIR)zlib.h zconf.h
+compress.lo crc32_test.lo example.lo minigzip.lo uncompr.lo: $(SRCDIR)zlib.h zconf.h
crc32.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
deflate.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
infback.lo inflate.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
diff --git a/test/crc32_test.c b/test/crc32_test.c
new file mode 100644
index 0000000..5d73128
--- /dev/null
+++ b/test/crc32_test.c
@@ -0,0 +1,205 @@
+/* crc32_tes.c -- unit test for crc32 in the zlib compression library
+ * Copyright (C) 1995-2006, 2010, 2011, 2016, 2019 Rogerio Alves
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zlib.h"
+#include <stdio.h>
+
+#ifdef STDC
+# include <string.h>
+# include <stdlib.h>
+#endif
+
+void test_crc32 OF((uLong crc, Byte* buf, z_size_t len, uLong chk, int line));
+int main OF((void));
+
+typedef struct {
+ int line;
+ uLong crc;
+ Byte* buf;
+ int len;
+ uLong expect;
+} crc32_test;
+
+void test_crc32(crc, buf, len, chk, line)
+ uLong crc;
+ Byte *buf;
+ z_size_t len;
+ uLong chk;
+ int line;
+{
+ uLong res = crc32(crc, buf, len);
+ if (res != chk) {
+ fprintf(stderr, "FAIL [%d]: crc32 returned 0x%08X expected 0x%08X\n",
+ line, (unsigned int)res, (unsigned int)chk);
+ exit(1);
+ }
+}
+
+static const crc32_test tests[] = {
+ {__LINE__, 0x0, 0x0, 0, 0x0},
+ {__LINE__, 0xffffffff, 0x0, 0, 0x0},
+ {__LINE__, 0x0, 0x0, 255, 0x0}, /* BZ 174799. */
+ {__LINE__, 0x0, 0x0, 256, 0x0},
+ {__LINE__, 0x0, 0x0, 257, 0x0},
+ {__LINE__, 0x0, 0x0, 32767, 0x0},
+ {__LINE__, 0x0, 0x0, 32768, 0x0},
+ {__LINE__, 0x0, 0x0, 32769, 0x0},
+ {__LINE__, 0x0, "", 0, 0x0},
+ {__LINE__, 0xffffffff, "", 0, 0xffffffff},
+ {__LINE__, 0x0, "abacus", 6, 0xc3d7115b},
+ {__LINE__, 0x0, "backlog", 7, 0x269205},
+ {__LINE__, 0x0, "campfire", 8, 0x22a515f8},
+ {__LINE__, 0x0, "delta", 5, 0x9643fed9},
+ {__LINE__, 0x0, "executable", 10, 0xd68eda01},
+ {__LINE__, 0x0, "file", 4, 0x8c9f3610},
+ {__LINE__, 0x0, "greatest", 8, 0xc1abd6cd},
+ {__LINE__, 0x0, "hello", 5, 0x3610a686},
+ {__LINE__, 0x0, "inverter", 8, 0xc9e962c9},
+ {__LINE__, 0x0, "jigsaw", 6, 0xce4e3f69},
+ {__LINE__, 0x0, "karate", 6, 0x890be0e2},
+ {__LINE__, 0x0, "landscape", 9, 0xc4e0330b},
+ {__LINE__, 0x0, "machine", 7, 0x1505df84},
+ {__LINE__, 0x0, "nanometer", 9, 0xd4e19f39},
+ {__LINE__, 0x0, "oblivion", 8, 0xdae9de77},
+ {__LINE__, 0x0, "panama", 6, 0x66b8979c},
+ {__LINE__, 0x0, "quest", 5, 0x4317f817},
+ {__LINE__, 0x0, "resource", 8, 0xbc91f416},
+ {__LINE__, 0x0, "secret", 6, 0x5ca2e8e5},
+ {__LINE__, 0x0, "test", 4, 0xd87f7e0c},
+ {__LINE__, 0x0, "ultimate", 8, 0x3fc79b0b},
+ {__LINE__, 0x0, "vector", 6, 0x1b6e485b},
+ {__LINE__, 0x0, "walrus", 6, 0xbe769b97},
+ {__LINE__, 0x0, "xeno", 4, 0xe7a06444},
+ {__LINE__, 0x0, "yelling", 7, 0xfe3944e5},
+ {__LINE__, 0x0, "zlib", 4, 0x73887d3a},
+ {__LINE__, 0x0, "4BJD7PocN1VqX0jXVpWB", 20, 0xd487a5a1},
+ {__LINE__, 0x0, "F1rPWI7XvDs6nAIRx41l", 20, 0x61a0132e},
+ {__LINE__, 0x0, "ldhKlsVkPFOveXgkGtC2", 20, 0xdf02f76},
+ {__LINE__, 0x0, "5KKnGOOrs8BvJ35iKTOS", 20, 0x579b2b0a},
+ {__LINE__, 0x0, "0l1tw7GOcem06Ddu7yn4", 20, 0xf7d16e2d},
+ {__LINE__, 0x0, "MCr47CjPIn9R1IvE1Tm5", 20, 0x731788f5},
+ {__LINE__, 0x0, "UcixbzPKTIv0SvILHVdO", 20, 0x7112bb11},
+ {__LINE__, 0x0, "dGnAyAhRQDsWw0ESou24", 20, 0xf32a0dac},
+ {__LINE__, 0x0, "di0nvmY9UYMYDh0r45XT", 20, 0x625437bb},
+ {__LINE__, 0x0, "2XKDwHfAhFsV0RhbqtvH", 20, 0x896930f9},
+ {__LINE__, 0x0, "ZhrANFIiIvRnqClIVyeD", 20, 0x8579a37},
+ {__LINE__, 0x0, "v7Q9ehzioTOVeDIZioT1", 20, 0x632aa8e0},
+ {__LINE__, 0x0, "Yod5hEeKcYqyhfXbhxj2", 20, 0xc829af29},
+ {__LINE__, 0x0, "GehSWY2ay4uUKhehXYb0", 20, 0x1b08b7e8},
+ {__LINE__, 0x0, "kwytJmq6UqpflV8Y8GoE", 20, 0x4e33b192},
+ {__LINE__, 0x0, "70684206568419061514", 20, 0x59a179f0},
+ {__LINE__, 0x0, "42015093765128581010", 20, 0xcd1013d7},
+ {__LINE__, 0x0, "88214814356148806939", 20, 0xab927546},
+ {__LINE__, 0x0, "43472694284527343838", 20, 0x11f3b20c},
+ {__LINE__, 0x0, "49769333513942933689", 20, 0xd562d4ca},
+ {__LINE__, 0x0, "54979784887993251199", 20, 0x233395f7},
+ {__LINE__, 0x0, "58360544869206793220", 20, 0x2d167fd5},
+ {__LINE__, 0x0, "27347953487840714234", 20, 0x8b5108ba},
+ {__LINE__, 0x0, "07650690295365319082", 20, 0xc46b3cd8},
+ {__LINE__, 0x0, "42655507906821911703", 20, 0xc10b2662},
+ {__LINE__, 0x0, "29977409200786225655", 20, 0xc9a0f9d2},
+ {__LINE__, 0x0, "85181542907229116674", 20, 0x9341357b},
+ {__LINE__, 0x0, "87963594337989416799", 20, 0xf0424937},
+ {__LINE__, 0x0, "21395988329504168551", 20, 0xd7c4c31f},
+ {__LINE__, 0x0, "51991013580943379423", 20, 0xf11edcc4},
+ {__LINE__, 0x0, "*]+@!);({_$;}[_},?{?;(_?,=-][@", 30, 0x40795df4},
+ {__LINE__, 0x0, "_@:_).&(#.[:[{[:)$++-($_;@[)}+", 30, 0xdd61a631},
+ {__LINE__, 0x0, "&[!,[$_==}+.]@!;*(+},[;:)$;)-@", 30, 0xca907a99},
+ {__LINE__, 0x0, "]{.[.+?+[[=;[?}_#&;[=)__$$:+=_", 30, 0xf652deac},
+ {__LINE__, 0x0, "-%.)=/[@].:.(:,()$;=%@-$?]{%+%", 30, 0xaf39a5a9},
+ {__LINE__, 0x0, "+]#$(@&.=:,*];/.!]%/{:){:@(;)$", 30, 0x6bebb4cf},
+ {__LINE__, 0x0, ")-._.:?[&:.=+}(*$/=!.${;(=$@!}", 30, 0x76430bac},
+ {__LINE__, 0x0, ":(_*&%/[[}+,?#$&*+#[([*-/#;%(]", 30, 0x6c80c388},
+ {__LINE__, 0x0, "{[#-;:$/{)(+[}#]/{&!%(@)%:@-$:", 30, 0xd54d977d},
+ {__LINE__, 0x0, "_{$*,}(&,@.)):=!/%(&(,,-?$}}}!", 30, 0xe3966ad5},
+ {__LINE__, 0x0, "e$98KNzqaV)Y:2X?]77].{gKRD4G5{mHZk,Z)SpU%L3FSgv!Wb8MLAFdi{+fp)c,@8m6v)yXg@]HBDFk?.4&}g5_udE*JHCiH=aL", 100, 0xe7c71db9},
+ {__LINE__, 0x0, "r*Fd}ef+5RJQ;+W=4jTR9)R*p!B;]Ed7tkrLi;88U7g@3v!5pk2X6D)vt,.@N8c]@yyEcKi[vwUu@.Ppm@C6%Mv*3Nw}Y,58_aH)", 100, 0xeaa52777},
+ {__LINE__, 0x0, "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&", 100, 0xcd472048},
+ {__LINE__, 0x7a30360d, "abacus", 6, 0xf8655a84},
+ {__LINE__, 0x6fd767ee, "backlog", 7, 0x1ed834b1},
+ {__LINE__, 0xefeb7589, "campfire", 8, 0x686cfca},
+ {__LINE__, 0x61cf7e6b, "delta", 5, 0x1554e4b1},
+ {__LINE__, 0xdc712e2, "executable", 10, 0x761b4254},
+ {__LINE__, 0xad23c7fd, "file", 4, 0x7abdd09b},
+ {__LINE__, 0x85cb2317, "greatest", 8, 0x4ba91c6b},
+ {__LINE__, 0x9eed31b0, "inverter", 8, 0xd5e78ba5},
+ {__LINE__, 0xb94f34ca, "jigsaw", 6, 0x23649109},
+ {__LINE__, 0xab058a2, "karate", 6, 0xc5591f41},
+ {__LINE__, 0x5bff2b7a, "landscape", 9, 0xf10eb644},
+ {__LINE__, 0x605c9a5f, "machine", 7, 0xbaa0a636},
+ {__LINE__, 0x51bdeea5, "nanometer", 9, 0x6af89afb},
+ {__LINE__, 0x85c21c79, "oblivion", 8, 0xecae222b},
+ {__LINE__, 0x97216f56, "panama", 6, 0x47dffac4},
+ {__LINE__, 0x18444af2, "quest", 5, 0x70c2fe36},
+ {__LINE__, 0xbe6ce359, "resource", 8, 0x1471d925},
+ {__LINE__, 0x843071f1, "secret", 6, 0x50c9a0db},
+ {__LINE__, 0xf2480c60, "ultimate", 8, 0xf973daf8},
+ {__LINE__, 0x2d2feb3d, "vector", 6, 0x344ac03d},
+ {__LINE__, 0x7490310a, "walrus", 6, 0x6d1408ef},
+ {__LINE__, 0x97d247d4, "xeno", 4, 0xe62670b5},
+ {__LINE__, 0x93cf7599, "yelling", 7, 0x1b36da38},
+ {__LINE__, 0x73c84278, "zlib", 4, 0x6432d127},
+ {__LINE__, 0x228a87d1, "4BJD7PocN1VqX0jXVpWB", 20, 0x997107d0},
+ {__LINE__, 0xa7a048d0, "F1rPWI7XvDs6nAIRx41l", 20, 0xdc567274},
+ {__LINE__, 0x1f0ded40, "ldhKlsVkPFOveXgkGtC2", 20, 0xdcc63870},
+ {__LINE__, 0xa804a62f, "5KKnGOOrs8BvJ35iKTOS", 20, 0x6926cffd},
+ {__LINE__, 0x508fae6a, "0l1tw7GOcem06Ddu7yn4", 20, 0xb52b38bc},
+ {__LINE__, 0xe5adaf4f, "MCr47CjPIn9R1IvE1Tm5", 20, 0xf83b8178},
+ {__LINE__, 0x67136a40, "UcixbzPKTIv0SvILHVdO", 20, 0xc5213070},
+ {__LINE__, 0xb00c4a10, "dGnAyAhRQDsWw0ESou24", 20, 0xbc7648b0},
+ {__LINE__, 0x2e0c84b5, "di0nvmY9UYMYDh0r45XT", 20, 0xd8123a72},
+ {__LINE__, 0x81238d44, "2XKDwHfAhFsV0RhbqtvH", 20, 0xd5ac5620},
+ {__LINE__, 0xf853aa92, "ZhrANFIiIvRnqClIVyeD", 20, 0xceae099d},
+ {__LINE__, 0x5a692325, "v7Q9ehzioTOVeDIZioT1", 20, 0xb07d2b24},
+ {__LINE__, 0x3275b9f, "Yod5hEeKcYqyhfXbhxj2", 20, 0x24ce91df},
+ {__LINE__, 0x38371feb, "GehSWY2ay4uUKhehXYb0", 20, 0x707b3b30},
+ {__LINE__, 0xafc8bf62, "kwytJmq6UqpflV8Y8GoE", 20, 0x16abc6a9},
+ {__LINE__, 0x9b07db73, "70684206568419061514", 20, 0xae1fb7b7},
+ {__LINE__, 0xe75b214, "42015093765128581010", 20, 0xd4eecd2d},
+ {__LINE__, 0x72d0fe6f, "88214814356148806939", 20, 0x4660ec7},
+ {__LINE__, 0xf857a4b1, "43472694284527343838", 20, 0xfd8afdf7},
+ {__LINE__, 0x54b8e14, "49769333513942933689", 20, 0xc6d1b5f2},
+ {__LINE__, 0xd6aa5616, "54979784887993251199", 20, 0x32476461},
+ {__LINE__, 0x11e63098, "58360544869206793220", 20, 0xd917cf1a},
+ {__LINE__, 0xbe92385, "27347953487840714234", 20, 0x4ad14a12},
+ {__LINE__, 0x49511de0, "07650690295365319082", 20, 0xe37b5c6c},
+ {__LINE__, 0x3db13bc1, "42655507906821911703", 20, 0x7cc497f1},
+ {__LINE__, 0xbb899bea, "29977409200786225655", 20, 0x99781bb2},
+ {__LINE__, 0xf6cd9436, "85181542907229116674", 20, 0x132256a1},
+ {__LINE__, 0x9109e6c3, "87963594337989416799", 20, 0xbfdb2c83},
+ {__LINE__, 0x75770fc, "21395988329504168551", 20, 0x8d9d1e81},
+ {__LINE__, 0x69b1d19b, "51991013580943379423", 20, 0x7b6d4404},
+ {__LINE__, 0xc6132975, "*]+@!);({_$;}[_},?{?;(_?,=-][@", 30, 0x8619f010},
+ {__LINE__, 0xd58cb00c, "_@:_).&(#.[:[{[:)$++-($_;@[)}+", 30, 0x15746ac3},
+ {__LINE__, 0xb63b8caa, "&[!,[$_==}+.]@!;*(+},[;:)$;)-@", 30, 0xaccf812f},
+ {__LINE__, 0x8a45a2b8, "]{.[.+?+[[=;[?}_#&;[=)__$$:+=_", 30, 0x78af45de},
+ {__LINE__, 0xcbe95b78, "-%.)=/[@].:.(:,()$;=%@-$?]{%+%", 30, 0x25b06b59},
+ {__LINE__, 0x4ef8a54b, "+]#$(@&.=:,*];/.!]%/{:){:@(;)$", 30, 0x4ba0d08f},
+ {__LINE__, 0x76ad267a, ")-._.:?[&:.=+}(*$/=!.${;(=$@!}", 30, 0xe26b6aac},
+ {__LINE__, 0x569e613c, ":(_*&%/[[}+,?#$&*+#[([*-/#;%(]", 30, 0x7e2b0a66},
+ {__LINE__, 0x36aa61da, "{[#-;:$/{)(+[}#]/{&!%(@)%:@-$:", 30, 0xb3430dc7},
+ {__LINE__, 0xf67222df, "_{$*,}(&,@.)):=!/%(&(,,-?$}}}!", 30, 0x626c17a},
+ {__LINE__, 0x74b34fd3, "e$98KNzqaV)Y:2X?]77].{gKRD4G5{mHZk,Z)SpU%L3FSgv!Wb8MLAFdi{+fp)c,@8m6v)yXg@]HBDFk?.4&}g5_udE*JHCiH=aL", 100, 0xccf98060},
+ {__LINE__, 0x351fd770, "r*Fd}ef+5RJQ;+W=4jTR9)R*p!B;]Ed7tkrLi;88U7g@3v!5pk2X6D)vt,.@N8c]@yyEcKi[vwUu@.Ppm@C6%Mv*3Nw}Y,58_aH)", 100, 0xd8b95312},
+ {__LINE__, 0xc45aef77, "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&", 100, 0xbb1c9912},
+ {__LINE__, 0xc45aef77, "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&"
+ "h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&", 600, 0x888AFA5B}
+};
+
+static const int test_size = sizeof(tests) / sizeof(tests[0]);
+
+int main(void)
+{
+ int i;
+ for (i = 0; i < test_size; i++) {
+ test_crc32(tests[i].crc, tests[i].buf, tests[i].len,
+ tests[i].expect, tests[i].line);
+ }
+ return 0;
+}
\ No newline at end of file
--
2.19.1

428
SOURCES/zlib-1.2.11-s390x-vectorize-crc32.patch Normal file
View File

@ -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

60
SPECS/zlib.spec
View File

@ -3,7 +3,7 @@
Name: zlib
Version: 1.2.11
Release: 21%{?dist}
Release: 25%{?dist}
Summary: The compression and decompression library
# /contrib/dotzlib/ have Boost license
License: zlib and Boost
@ -14,14 +14,11 @@ Source: http://www.zlib.net/zlib-%{version}.tar.xz
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
Patch2: zlib-1.2.11-Limit-hash-table-inserts.patch
# IBM Z optimalizations
Patch2: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-s390x.patch
# IBM CRC32 optimalization for POWER archs
Patch3: zlib-1.2.11-optimized-CRC32-framework.patch
# fixed firefox crash + added test case
Patch4: zlib-1.2.11-firefox-crash-fix.patch
# fixed covscan issues
Patch5: zlib-1.2.11-covscan-issues.patch
Patch3: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-s390x.patch
# fix for IBM Z optimalizations
Patch6: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix.patch
# permit a deflateParams() parameter change
@ -42,6 +39,28 @@ Patch13: zlib-1.2.11-cve-2022-37434_2.patch
# Fix setting strm.adler on z15
Patch14: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-strm-adler-fix.patch
# Optimization for z15
Patch15: 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
Patch16: zlib-1.2.11-Preparation-for-Power-optimizations.patch
Patch17: zlib-1.2.11-Add-Power8-optimized-crc32.patch
Patch18: 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
Patch19: zlib-1.2.11-s390x-vectorize-crc32.patch
# Fix for python3.11 broken libxml2 and lxml on s390x
Patch20: zlib-1.2.11-Fix-broken-libxml2-for-python311.patch
# fixed covscan issues
Patch21: zlib-1.2.11-covscan-issues.patch
# Fix for Crash in zlib deflateBound() function on s390x
# Resolves: #2193045
Patch22: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix-crash-deflateBound.patch
BuildRequires: automake, autoconf, libtool
%description
@ -97,8 +116,6 @@ developing applications which use minizip.
%endif
%patch2 -p1
%patch3 -p1
%patch4 -p1
%patch5 -p1
%patch6 -p1
%patch7 -p1
%patch8 -p1
@ -108,6 +125,14 @@ developing applications which use minizip.
%patch12 -p1
%patch13 -p1
%patch14 -p1
%patch15 -p1
%patch16 -p1
%patch17 -p1
%patch18 -p1
%patch19 -p1
%patch20 -p1
%patch21 -p1
%patch22 -p1
iconv -f iso-8859-2 -t utf-8 < ChangeLog > ChangeLog.tmp
@ -188,6 +213,21 @@ find $RPM_BUILD_ROOT -name '*.la' -delete
%changelog
* Tue May 16 2023 Lukas Javorsky <ljavorsk@redhat.com> - 1.2.11-25
- Fix the Crash in zlib deflateBound() function on s390x
- Resolves: BZ#2193045
* Tue May 16 2023 Lukas Javorsky <ljavorsk@redhat.com> - 1.2.11-24
- Resolve fuzzing issue for unknown memory access
* Tue May 09 2023 Lukas Javorsky <ljavorsk@redhat.com> - 1.2.11-23
- Rebased Power 8 optimization patches
- Fix for Unnecessary IFUNC resolver for crc32_z
- Fix for python3.11 broken libxml2 and lxml on s390x
* Tue May 09 2023 Lukas Javorsky <ljavorsk@redhat.com> - 1.2.11-22
- Inflate small window optimization for IBM z15 rhbz#2154775
* Wed Oct 12 2022 Ilya Leoshkevich <iii@linux.ibm.com> - 1.2.11-21
- Fix for IBM strm.adler rhbz#2134074