[MEDIUM] Added easier support for Doug Lea's malloc (dlmalloc)

It's now as easy as passing "DLMALLOC_SRC=<path_to_dlmalloc.c>" to
build with support for dlmalloc. The dlmalloc source is not provided
with haproxy in order to ensure that people will use either the most
recent, or the most suited version for their platform. The minimal
mmap size is specified in DLMALLOC_THRES, which defaults to 4096. It
should be increased on platforms with larger pages (eg: 8 kB on some
64 bit systems).

Makefile

@@ -1,7 +1,10 @@
 # This makefile supports different OS and CPU setups.
 # You should use it this way :
 #   make TARGET=os CPU=cpu REGEX=lib
-
+#
+# Some external components may be build with it, such dlmalloc :
+#
+#   make DLMALLOC_SRC=/usr/local/src/dlmalloc.c
 
 # Select target OS. TARGET must match a system for which COPTS and LIBS are
 # correctly defined below.
@@ -180,6 +183,12 @@ ifneq ($(USE_REGPARM),)
 OPTIONS += -DCONFIG_HAP_USE_REGPARM
 endif
 
+ifneq ($(DLMALLOC_SRC),)
+# May be changed to patch PAGE_SIZE on every platform
+DLMALLOC_THRES=4096
+OPT_OBJS += src/dlmalloc.o
+endif
+
 ifneq ($(VERSION),)
 OPTIONS += -DCONFIG_HAPROXY_VERSION=\"$(VERSION)$(SUBVERS)\"
 endif
@@ -228,6 +237,9 @@ objsize: haproxy
 %.o:	%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
 
+src/dlmalloc.o: $(DLMALLOC_SRC)
+	$(CC) $(CFLAGS) -DDEFAULT_MMAP_THRESHOLD=$(DLMALLOC_THRES) -c -o $@ $<
+
 clean:
 	rm -f *.[oas] src/*.[oas] core haproxy test
 	for dir in . src include/* doc; do rm -f $$dir/*~ $$dir/*.rej;done

Makefile.bsd

@@ -1,6 +1,11 @@
 # This makefile is dedicated to OpenBSD (and possibly other BSDs)
 # You should use it this way :
 #   make TARGET=os CPU=cpu
+#
+# Some optional components may be added, such as DLMALLOC :
+#
+#   make TARGET=freebsd CPU=i686 DLMALLOC_SRC=/usr/local/src/dlmalloc.c \
+#        OPT_OBJS=src/dlmalloc.o
 
 VERSION := 1.3.12
 
@@ -66,11 +71,17 @@ SMALL_OPTS = -DBUFSIZE=8030 -DMAXREWRITE=1030 -DSYSTEM_MAXCONN=1024
 ADDINC =
 ADDLIB =
 
+# redefine this if you want to add some special .o files
+OPT_OBJS =
+
 # set some defines when needed.
 # Known ones are -DENABLE_POLL
 # - use -DTPROXY to compile with transparent proxy support.
 DEFINE = -DTPROXY
 
+# May be changed to patch PAGE_SIZE on every platform when using dlmalloc
+DLMALLOC_THRES=4096
+
 # global options
 TARGET_OPTS=$(COPTS.$(TARGET))
 REGEX_OPTS=$(COPTS.$(REGEX))
@@ -92,7 +103,7 @@ OBJS = src/haproxy.o src/list.o src/chtbl.o src/hashpjw.o src/base64.o \
 
 all: haproxy
 
-haproxy: $(OBJS)
+haproxy: $(OBJS) $(OPT_OBJS)
 	$(LD) $(LDFLAGS) -o $@ $> $(LIBS)
 
 .SUFFIXES: .c.o
@@ -100,6 +111,9 @@ haproxy: $(OBJS)
 .c.o:
 	$(CC) $(CFLAGS) -c -o $@ $>
 
+src/dlmalloc.o: $(DLMALLOC_SRC)
+	$(CC) $(CFLAGS) -DDEFAULT_MMAP_THRESHOLD=$(DLMALLOC_THRES) -c -o $@ $>
+
 clean:
 	rm -f *.[oas] src/*.[oas] core haproxy test
 	for dir in . src include/* doc; do rm -f $$dir/*~ $$dir/*.rej;done

Makefile.osx

@@ -1,6 +1,11 @@
 # This makefile is dedicated to darwin (and possibly other BSDs)
 # You should use it this way :
 #   make TARGET=os CPU=cpu
+#
+# Some optional components may be added, such as DLMALLOC :
+#
+#   make DLMALLOC_SRC=/usr/local/src/dlmalloc.c \
+#        OPT_OBJS=src/dlmalloc.o
 
 VERSION := 1.3.12
 
@@ -71,6 +76,9 @@ ADDLIB =
 # - use -DTPROXY to compile with transparent proxy support.
 DEFINE = -DTPROXY 
 
+# May be changed to patch PAGE_SIZE on every platform when using dlmalloc
+DLMALLOC_THRES=4096
+
 # global options
 TARGET_OPTS=$(COPTS.$(TARGET))
 REGEX_OPTS=$(COPTS.$(REGEX))
@@ -100,6 +108,9 @@ haproxy: $(OBJS)
 .c.o:
 	$(CC) $(CFLAGS) -c -o $@ $<
 
+src/dlmalloc.o: $(DLMALLOC_SRC)
+	$(CC) $(CFLAGS) -DDEFAULT_MMAP_THRESHOLD=$(DLMALLOC_THRES) -c -o $@ $<
+
 clean:
 	rm -f *.[oas] src/*.[oas] core haproxy test
 	for dir in . src include/* doc; do rm -f $$dir/*~ $$dir/*.rej;done