Use jemalloc by default on Linux

We seem to run into trouble with regular glibc malloc on Linux, so use
jemalloc instead of glibc's malloc.

This can be disabled using --disable-jemalloc


git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@3216 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/Makefile.am

@@ -79,6 +79,7 @@ varnishd_LDADD = \
 	$(top_builddir)/lib/libvarnish/libvarnish.la \
 	$(top_builddir)/lib/libvarnishcompat/libvarnishcompat.la \
 	$(top_builddir)/lib/libvcl/libvcl.la \
+	@JEMALLOC_LDADD@ \
 	${DL_LIBS} ${PTHREAD_LIBS} ${NET_LIBS} ${LIBM}
 
 EXTRA_DIST = default.vcl

configure.ac

@@ -340,6 +340,28 @@ esac
 
 AC_DEFINE_UNQUOTED([VCC_CC],"$VCC_CC",[C compiler command line for VCL code])
 
+# Use jemalloc on Linux
+JEMALLOC_SUBDIR=
+JEMALLOC_LDADD=
+AC_ARG_ENABLE(jemalloc,
+AS_HELP_STRING([--disable-jemalloc],[do not use jemalloc (default is yes on Linux, no everywhere else)]),
+[if "x$enableval" = "xyes"; then
+	JEMALLOC_SUBDIR=libjemalloc
+	JEMALLOC_LDADD='$(top_builddir)/lib/libjemalloc/libjemalloc_mt.la'
+fi],
+[case $host in #(
+*-*-linux*)
+	JEMALLOC_SUBDIR=libjemalloc
+	JEMALLOC_LDADD='$(top_builddir)/lib/libjemalloc/libjemalloc_mt.la'
+	;; #(
+*)
+	true
+	;;
+esac])
+
+AC_SUBST(JEMALLOC_SUBDIR)
+AC_SUBST(JEMALLOC_LDADD)
+
 # Generate output
 AC_CONFIG_FILES([
     Makefile
@@ -361,6 +383,7 @@ AC_CONFIG_FILES([
     lib/libvarnishapi/Makefile
     lib/libvarnishcompat/Makefile
     lib/libvcl/Makefile
+    lib/libjemalloc/Makefile
     man/Makefile
     redhat/Makefile
     varnishapi.pc

lib/Makefile.am

@@ -4,4 +4,5 @@ SUBDIRS = \
 	libvarnish \
 	libvarnishapi \
 	libvarnishcompat \
-	libvcl
+	libvcl \
+	@JEMALLOC_SUBDIR@

lib/libjemalloc/Makefile

-CFLAGS := -O3 -g
-# See source code comments to avoid memory leaks when enabling MALLOC_MAG.
-#CPPFLAGS := -DMALLOC_PRODUCTION -DMALLOC_MAG
-CPPFLAGS := -DMALLOC_PRODUCTION
-
-all: libjemalloc.so.0 libjemalloc_mt.so.0
-
-jemalloc_linux_mt.o: jemalloc_linux.c
-	gcc $(CFLAGS) -c -DPIC -fPIC $(CPPFLAGS) -D__isthreaded=true -o $@ $+
-
-jemalloc_linux.o: jemalloc_linux.c
-	gcc $(CFLAGS) -c -DPIC -fPIC $(CPPFLAGS) -D__isthreaded=false -o $@ $+
-
-libjemalloc_mt.so.0: jemalloc_linux_mt.o
-	gcc -shared -lpthread -o $@ $+
-	ln -sf $@ libjemalloc_mt.so
-
-libjemalloc.so.0: jemalloc_linux.o
-	gcc -shared -lpthread -o $@ $+
-	ln -sf $@ libjemalloc.so
-
-clean:
-	rm -f *.o *.so.0 *.so

lib/libjemalloc/Makefile.am

+# See source code comments to avoid memory leaks when enabling MALLOC_MAG.
+#CPPFLAGS := -DMALLOC_PRODUCTION -DMALLOC_MAG
+AM_CPPFLAGS := -DMALLOC_PRODUCTION
+
+#all: libjemalloc.so.0 libjemalloc_mt.so.0
+
+noinst_LTLIBRARIES = libjemalloc_mt.la
+
+libjemalloc_mt_la_LIBADD = ${PTHREAD_LIBS}
+libjemalloc_mt_la_LDFLAGS = -version-info 0:0:0 -static
+libjemalloc_mt_la_CFLAGS = -D__isthreaded=true
+
+libjemalloc_mt_la_SOURCES = jemalloc_linux.c
+
+#jemalloc_linux.o: jemalloc_linux.c
+#	gcc $(CFLAGS) -c -DPIC -fPIC $(CPPFLAGS) -D__isthreaded=false -o $@ $+
+
+#libjemalloc_mt.so.0: jemalloc_linux_mt.o
+#	gcc -shared -lpthread -o $@ $+
+#	ln -sf $@ libjemalloc_mt.so
+
+#libjemalloc.so.0: jemalloc_linux.o
+#	gcc -shared -lpthread -o $@ $+
+#	ln -sf $@ libjemalloc.so
+
+#clean:
+#	rm -f *.o *.so.0 *.so