package/memstat: add memstat package

Memstat lists all the processes, executables, and shared
libraries that are using up virtual memory. It's helpful to
see how the shared memory is used and which 'old' libs are
loaded.

package/Config.in

@@ -94,6 +94,7 @@ source "package/lsof/Config.in"
 source "package/ltp-testsuite/Config.in"
 source "package/ltrace/Config.in"
 source "package/ltt/Config.in"
+source "package/memstat/Config.in"
 if !BR2_PACKAGE_BUSYBOX_HIDE_OTHERS
 source "package/module-init-tools/Config.in"
 source "package/modutils/Config.in"

package/memstat/Config.in

@@ -0,0 +1,7 @@
+config BR2_PACKAGE_MEMSTAT
+	bool "memstat"
+	help
+	  Memstat lists all the processes, executables, and shared
+	  libraries that are using up virtual memory. It's helpful to
+	  see how the shared memory is used and which 'old' libs are
+	  loaded.

package/memstat/memstat.mk

@@ -0,0 +1,49 @@
+#############################################################
+#
+# memstat
+#
+#############################################################
+
+MEMSTAT_VERSION:=0.5
+MEMSTAT_SOURCE:=memstat_$(MEMSTAT_VERSION).tar.gz
+MEMSTAT_SITE:=$(BR2_DEBIAN_MIRROR)/debian/pool/main/m/memstat
+MEMSTAT_DIR:=$(BUILD_DIR)/memstat-$(MEMSTAT_VERSION)
+
+$(DL_DIR)/$(MEMSTAT_SOURCE):
+	$(WGET) -P $(DL_DIR) $(MEMSTAT_SITE)/$(MEMSTAT_SOURCE)
+
+$(MEMSTAT_DIR)/.unpacked: $(DL_DIR)/$(MEMSTAT_SOURCE)
+	$(ZCAT) $(DL_DIR)/$(MEMSTAT_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
+	toolchain/patch-kernel.sh $(MEMSTAT_DIR) package/memstat/ memstat-$(MEMSTAT_VERSION)\*.patch
+	touch $@
+
+$(MEMSTAT_DIR)/.configured: $(MEMSTAT_DIR)/.unpacked
+	touch $@
+
+$(MEMSTAT_DIR)/memstat: $(MEMSTAT_DIR)/.configured
+	$(TARGET_CC) $(TARGET_CFLAGS) $(TARGET_LDFLAGS) $(@D)/memstat.c -o $@
+
+$(TARGET_DIR)/usr/bin/memstat: $(MEMSTAT_DIR)/memstat
+	[ -e $(TARGET_DIR)/etc/memstat.conf ] || \
+		$(INSTALL) -m 0644 -D $(^D)/memstat.conf $(TARGET_DIR)/etc
+	$(INSTALL) -m 0755 -D $^ $@
+	$(STRIPCMD) $(STRIP_STRIP_ALL) $@
+
+memstat: uclibc $(TARGET_DIR)/usr/bin/memstat
+
+memstat-source: $(DL_DIR)/$(MEMSTAT_SOURCE)
+
+memstat-clean:
+	rm -f $(MEMSTAT_DIR)/memstat \
+		$(TARGET_DIR)/etc/memstat.conf $(TARGET_DIR)/usr/bin/memstat
+
+memstat-dirclean:
+	rm -rf $(MEMSTAT_DIR)
+#############################################################
+#
+# Toplevel Makefile options
+#
+#############################################################
+ifeq ($(strip $(BR2_PACKAGE_MEMSTAT)),y)
+TARGETS+=memstat
+endif