114 lines
4.0 KiB
Diff
114 lines
4.0 KiB
Diff
From: Tobias Geerinckx-Rice <me@tobias.gr>
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Date: Sat, 03 Oct 2020 22:10:20 +0200
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Subject: gnu: clamav: Add support for system tomsfastmath.
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Adjusted from the original for clamav 0.103.0:
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From 756ff89526b5ffaa7a4f49b1bbecf2ecbd6f85f9 Mon Sep 17 00:00:00 2001
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From: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
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Date: Wed, 11 Mar 2015 20:03:15 +0100
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Subject: add support for system tomsfastmath
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Patch-Name: add-support-for-system-tomsfastmath.patch
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---
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configure.ac | 2 ++
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libclamav/Makefile.am | 10 ++++++++--
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libclamav/bignum.h | 6 +++++-
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libclamav/xdp.c | 2 +-
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m4/reorganization/libs/tomsfastmath.m4 | 12 ++++++++++++
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5 files changed, 28 insertions(+), 4 deletions(-)
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create mode 100644 m4/reorganization/libs/tomsfastmath.m4
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diff -Naur a/configure.ac b/configure.ac
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--- a/configure.ac 1970-01-01 01:00:01.000000000 +0100
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+++ b/configure.ac 2020-10-03 22:04:00.535448352 +0200
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@@ -94,6 +94,7 @@
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m4_include([m4/reorganization/libs/json.m4])
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m4_include([m4/reorganization/libs/pcre.m4])
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m4_include([m4/reorganization/libs/libmspack.m4])
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+m4_include([m4/reorganization/libs/tomsfastmath.m4])
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if test "x$use_internal_mspack" = "xno"; then
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mspack_msg="External, $LIBMSPACK_CFLAGS $LIBMSPACK_LIBS"
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@@ -361,6 +362,7 @@
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fi
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CL_MSG_STATUS([yara ],[$enable_yara],[$enable_yara])
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CL_MSG_STATUS([fts ],[yes],[$lfs_fts_msg])
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+CL_MSG_STATUS([tomsfastmath],[yes],[$tomsfastmath_msg])
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# Yep, downgrading the compiler avoids the bug too:
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diff -Naur a/libclamav/bignum.h b/libclamav/bignum.h
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--- a/libclamav/bignum.h 1970-01-01 01:00:01.000000000 +0100
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+++ b/libclamav/bignum.h 2020-10-03 22:04:00.535448352 +0200
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@@ -1,9 +1,13 @@
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#ifndef BIGNUM_H_
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#define BIGNUM_H_
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+#if HAVE_SYSTEM_TOMSFASTMATH
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+#include <tfm.h>
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+#else
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#define TFM_CHECK
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-
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#include "bignum_fast.h"
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+#endif
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+
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typedef fp_int mp_int;
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#define mp_cmp fp_cmp
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#define mp_toradix_n(a, b, c, d) fp_toradix_n(a, b, c, d)
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diff -Naur a/libclamav/Makefile.am b/libclamav/Makefile.am
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--- a/libclamav/Makefile.am 1970-01-01 01:00:01.000000000 +0100
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+++ b/libclamav/Makefile.am 2020-10-03 22:06:42.705447754 +0200
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@@ -588,8 +588,10 @@
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yara_clam.h
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endif
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-libclamav_la_SOURCES += bignum.h\
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- bignum_fast.h\
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+libclamav_la_SOURCES += bignum.h
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+
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+if !SYSTEM_TOMSFASTMATH
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+libclamav_la_SOURCES += bignum_fast.h\
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tomsfastmath/addsub/fp_add.c\
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tomsfastmath/addsub/fp_add_d.c\
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tomsfastmath/addsub/fp_addmod.c\
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@@ -671,6 +673,10 @@
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tomsfastmath/sqr/fp_sqr_comba_generic.c\
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tomsfastmath/sqr/fp_sqr_comba_small_set.c\
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tomsfastmath/sqr/fp_sqrmod.c
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+else
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+libclamav_la_CFLAGS += $(TOMSFASTMATH_CFLAGS)
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+libclamav_la_LIBADD += $(TOMSFASTMATH_LIBS)
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+endif
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.PHONY2: version.h.tmp
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version.c: version.h
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diff -Naur a/libclamav/xdp.c b/libclamav/xdp.c
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--- a/libclamav/xdp.c 1970-01-01 01:00:01.000000000 +0100
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+++ b/libclamav/xdp.c 2020-10-03 22:04:00.535448352 +0200
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@@ -52,7 +52,7 @@
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#include "scanners.h"
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#include "conv.h"
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#include "xdp.h"
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-#include "bignum_fast.h"
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+#include "bignum.h"
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#include "filetypes.h"
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static char *dump_xdp(cli_ctx *ctx, const char *start, size_t sz);
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diff -Naur a/m4/reorganization/libs/tomsfastmath.m4 b/m4/reorganization/libs/tomsfastmath.m4
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--- a/m4/reorganization/libs/tomsfastmath.m4 1970-01-01 01:00:00.000000000 +0100
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+++ b/m4/reorganization/libs/tomsfastmath.m4 2020-10-03 22:04:00.535448352 +0200
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@@ -0,0 +1,12 @@
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+dnl Check for system tomsfastmath
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+PKG_CHECK_MODULES([TOMSFASTMATH], [tomsfastmath], [have_system_tomsfastmath=yes], [have_system_tomsfastmath=no])
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+
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+AM_CONDITIONAL([SYSTEM_TOMSFASTMATH], [test "x$have_system_tomsfastmath" = "xyes"])
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+
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+if test "x$have_system_tomsfastmath" = "xyes"; then
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+ AC_DEFINE([HAVE_SYSTEM_TOMSFASTMATH], [1], [link against system-wide tomsfastmath library])
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+ tomsfastmath_msg="External, $TOMSFASTMATH_CFLAGS $TOMSFASTMATH_LIBS"
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+else
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+ AC_DEFINE([HAVE_SYSTEM_TOMSFASTMATH], [0], [don't link against system-wide tomsfastmath library])
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+ tomsfastmath_msg="Internal"
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+fi
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