qla2x00t: Make out-of-tree build possible (backport r3910 from trunk)

git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.2.x@4440 d57e44dd-8a1f-0410-8b47-8ef2f437770f

qla2x00t/Makefile

@@ -1,3 +1,5 @@
+ifeq ($(BUILD_2X_MODULE),)
+
 qla2xxx-y := qla_os.o qla_init.o qla_mbx.o qla_iocb.o qla_isr.o qla_gs.o \
 		qla_dbg.o qla_sup.o qla_attr.o qla_mid.o qla_dfs.o
 
@@ -12,3 +14,56 @@ extraclean: clean
 	rm -f *.orig *.rej
 
 .PHONY: clean extraclean
+
+else
+
+SHELL=/bin/bash
+
+KMOD := $(shell pwd)/kernel
+
+enable-Wextra = $(shell uname_r="$$(uname -r)"; if [ "$${uname_r%.el5}" = "$${uname_r}" ]; then echo "$(1)"; fi)
+
+EXTRA_CFLAGS += $(call enable-Wextra,-Wextra -Wno-unused-parameter \
+	-Wno-missing-field-initializers)
+
+ifneq ($(CONFIG_SCSI_QLA2XXX_TARGET),)
+EXTRA_CFLAGS += -DCONFIG_SCSI_QLA2XXX_TARGET=$(CONFIG_SCSI_QLA2XXX_TARGET)
+endif
+
+ifeq ($(KVER),)
+  ifeq ($(KDIR),)
+    KDIR := /lib/modules/$(shell uname -r)/build
+  endif
+else
+  KDIR := /lib/modules/$(KVER)/build
+endif
+
+ifneq ($(PATCHLEVEL),)
+obj-m := qla2xxx_scst.o
+qla2xxx_scst-objs := qla_os.o qla_init.o qla_mbx.o qla_iocb.o qla_isr.o qla_gs.o \
+		qla_dbg.o qla_sup.o qla_attr.o qla_mid.o qla_dfs.o
+else
+
+all:
+	$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) BUILD_INI=m
+
+install: all
+	$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) BUILD_INI=m \
+		modules_install
+	-/sbin/depmod -aq $(KVER)
+
+uninstall:
+	rm -f $(INSTALL_DIR)/qla2xxxt.ko
+	-/sbin/depmod -a $(KVER)
+endif
+
+clean:
+	@$(MAKE) -C $(KDIR) M=$(PWD) clean
+	@$(RM) tags Modules.symvers module.symvers Module.markers modules.order
+
+extraclean: clean
+	rm -f *.orig *.rej
+
+.PHONY: all tgt install uninstall clean extraclean
+
+endif

qla2x00t/qla2x00-target/Makefile

@@ -1,11 +1,11 @@
 #
 #  Qlogic 2x00 SCSI target driver makefile
-#  
+#
 #  Copyright (C) 2004 - 2011 Vladislav Bolkhovitin <vst@vlnb.net>
 #  Copyright (C) 2004 - 2005 Leonid Stoljar
 #  Copyright (C) 2006 - 2010 ID7 Ltd.
 #  Copyright (C) 2010 - 2011 SCST Ltd.
-#  
+#
 #  This program is free software; you can redistribute it and/or
 #  modify it under the terms of the GNU General Public License
 #  as published by the Free Software Foundation, version 2
@@ -56,30 +56,58 @@ else
   KDIR := /lib/modules/$(KVER)/build
 endif
 
+ifeq ($(BUILD_2X_MODULE),)
 QLA2XXX_INC_DIR := $(KDIR)/drivers/scsi/qla2xxx
+else
+QLA2XXX_INC_DIR := $(SUBDIRS)/..
+QLA2XXX_DIR := $(shell pwd)/..
+QLA2XXX_SCST := qla2xxx_scst
+EXTRA_CFLAGS += -DCONFIG_SCSI_QLA2XXX_TARGET=y
+endif
+
 EXTRA_CFLAGS += -I$(QLA2XXX_INC_DIR)
 
 ifneq ($(PATCHLEVEL),)
 obj-m := qla2x00tgt.o
 qla2x00tgt-objs := qla2x00t.o
-
 else
 
-all: Modules.symvers Module.symvers
+ifneq ($(BUILD_2X_MODULE),)
+# We need to make qla2xxx_scst before Module.symvers
+.NOTPARALLEL:
+endif
+
+all: $(QLA2XXX_SCST) Modules.symvers Module.symvers
 	$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) BUILD_INI=m
 
-tgt: Modules.symvers Module.symvers
-	$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) BUILD_INI=n
-
 install: all
+ifneq ($(BUILD_2X_MODULE),)
+	$(MAKE) SUBDIRS=$(QLA2XXX_DIR) -C $(QLA2XXX_DIR) $@
+endif
 	$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) BUILD_INI=m \
 		modules_install
 	-/sbin/depmod -a $(KVER)
 
+uninstall:
+ifneq ($(BUILD_2X_MODULE),)
+	$(MAKE) SUBDIRS=$(QLA2XXX_DIR) -C $(QLA2XXX_DIR) $@
+endif
+	rm -f $(INSTALL_DIR)/qla2[23x]00tgt.ko
+	-/sbin/depmod -a $(KVER)
+
+ifneq ($(BUILD_2X_MODULE),)
+qla2xxx_scst:
+	$(MAKE) BUILD_2X_MODULE=$(BUILD_2X_MODULE) CONFIG_SCSI_QLA2XXX_TARGET=y \
+		SUBDIRS=$(QLA2XXX_DIR) -C $(QLA2XXX_DIR) all
+endif
+
 SCST_MOD_VERS := $(shell ls $(SCST_DIR)/Modules.symvers 2>/dev/null)
 ifneq ($(SCST_MOD_VERS),)
 Modules.symvers: $(SCST_DIR)/Modules.symvers
 	cp $(SCST_DIR)/Modules.symvers .
+ifneq ($(BUILD_2X_MODULE),)
+	cat $(QLA2XXX_DIR)/Modules.symvers >>Modules.symvers
+endif
 else
 .PHONY: Modules.symvers
 endif
@@ -89,13 +117,13 @@ SCST_MOD_VERS := $(shell ls $(SCST_DIR)/Module.symvers 2>/dev/null)
 ifneq ($(SCST_MOD_VERS),)
 Module.symvers: $(SCST_DIR)/Module.symvers
 	cp $(SCST_DIR)/Module.symvers .
+ifneq ($(BUILD_2X_MODULE),)
+	cat $(QLA2XXX_DIR)/Module.symvers >>Module.symvers
+endif
 else
 .PHONY: Module.symvers
 endif
 
-uninstall:
-	rm -f $(INSTALL_DIR)/qla2[23x]00tgt.ko
-	-/sbin/depmod -a $(KVER)
 endif
 
 clean:
@@ -148,4 +176,4 @@ enable_proc:
 	@cmp ../qla_attr.c ../qla_attr.c.aa >/dev/null; if [[ $$? = 0 ]]; then rm ../qla_attr.c.aa; echo "sed failed: wrong original state?"; false; fi
 	rm ../qla_attr.c.aa
 
-.PHONY: all tgt install uninstall clean extraclean debug2perf debug2release perf2debug release2debug disable_proc enable_proc
+.PHONY: all tgt install uninstall clean extraclean debug2perf debug2release perf2debug release2debug disable_proc enable_proc qla2xxx_scst