Makefile: prefer RELEASE=y|n over RELEASE=0|1

For clarity, we now prefer y|n over 0|1 as the values of boolean options on
make command lines. This patch applies this preference to the Makefile of
the device model and tools, while RELEASE=0|1 is still supported for
backward compatibility.

Tracked-On: #5772
Signed-off-by: Junjie Mao <junjie.mao@intel.com>

Makefile

@@ -54,6 +54,15 @@ else
   endif
 endif
 
+# Backward-compatibility for RELEASE=(0|1)
+ifeq ($(RELEASE),1)
+  override RELEASE := y
+else
+  ifeq ($(RELEASE),0)
+    override RELEASE := n
+  endif
+endif
+
 BOARD ?= kbl-nuc-i7
 
 ifeq ($(BOARD), apl-nuc)

devicemodel/Makefile

@@ -11,7 +11,19 @@ DM_BUILD_VERSION ?=
 DM_BUILD_TAG ?=
 
 CC ?= gcc
-RELEASE ?= 0
+
+ifndef RELEASE
+  override RELEASE := n
+else
+  # Backward-compatibility for RELEASE=(0|1)
+  ifeq ($(RELEASE),1)
+    override RELEASE := y
+  else
+    ifeq ($(RELEASE),0)
+      override RELEASE := n
+    endif
+  endif
+endif
 
 CFLAGS := -g -O0 -std=gnu11
 CFLAGS += -D_GNU_SOURCE
@@ -52,7 +64,7 @@ endif
 endif
 endif
 
-ifeq ($(RELEASE),0)
+ifeq ($(RELEASE),n)
 CFLAGS += -DDM_DEBUG
 else
 LDFLAGS += -s

hypervisor/scripts/makefile/config.mk

@@ -99,9 +99,9 @@ ifdef RELEASE
   endif
 else
   ifdef CONFIG_RELEASE
-    RELEASE := $(CONFIG_RELEASE)
+    override RELEASE := $(CONFIG_RELEASE)
   else
-    RELEASE := $(1)
+    override RELEASE := $(1)
   endif
 endif
 endef

misc/Makefile

@@ -1,9 +1,21 @@
 T := $(CURDIR)
 OUT_DIR ?= $(shell mkdir -p $(T)/build;cd $(T)/build;pwd)
-RELEASE ?= 0
+
+ifndef RELEASE
+  override RELEASE := n
+else
+  # Backward-compatibility for RELEASE=(0|1)
+  ifeq ($(RELEASE),1)
+    override RELEASE := y
+  else
+    ifeq ($(RELEASE),0)
+      override RELEASE := n
+    endif
+  endif
+endif
 
 .PHONY: all acrn-crashlog acrnlog acrn-manager acrntrace acrnbridge life_mngr
-ifeq ($(RELEASE),0)
+ifeq ($(RELEASE),n)
 all: acrn-crashlog acrnlog acrn-manager acrntrace acrnbridge life_mngr
 else
 all: acrn-manager acrnbridge life_mngr
@@ -37,7 +49,7 @@ clean:
 	rm -rf $(OUT_DIR)
 
 .PHONY: install
-ifeq ($(RELEASE),0)
+ifeq ($(RELEASE),n)
 install: acrn-crashlog-install acrnlog-install acrn-manager-install acrntrace-install acrnbridge-install \
 	acrn-life-mngr-install
 else

misc/debug_tools/acrn_crashlog/Makefile

@@ -9,9 +9,21 @@ OUT_DIR 	?= $(BASEDIR)
 BUILDDIR	:= $(OUT_DIR)/acrn-crashlog
 CC		?= gcc
 RM		= rm
-RELEASE 	?= 0
 
-ifeq ($(RELEASE),0)
+ifndef RELEASE
+  override RELEASE := n
+else
+  # Backward-compatibility for RELEASE=(0|1)
+  ifeq ($(RELEASE),1)
+    override RELEASE := y
+  else
+    ifeq ($(RELEASE),0)
+      override RELEASE := n
+    endif
+  endif
+endif
+
+ifeq ($(RELEASE),n)
 CFLAGS	+= -DDEBUG_ACRN_CRASHLOG
 endif
 

misc/services/acrn_manager/Makefile

@@ -3,7 +3,19 @@ include ../../../paths.make
 T := $(CURDIR)
 OUT_DIR ?= $(shell mkdir -p $(T)/build;cd $(T)/build;pwd)
 CC ?= gcc
-RELEASE ?= 0
+
+ifndef RELEASE
+  override RELEASE := n
+else
+  # Backward-compatibility for RELEASE=(0|1)
+  ifeq ($(RELEASE),1)
+    override RELEASE := y
+  else
+    ifeq ($(RELEASE),0)
+      override RELEASE := n
+    endif
+  endif
+endif
 
 MANAGER_CFLAGS := -g -O0 -std=gnu11
 MANAGER_CFLAGS += -D_GNU_SOURCE
@@ -50,7 +62,7 @@ endif
 endif
 endif
 
-ifeq ($(RELEASE),0)
+ifeq ($(RELEASE),n)
 MANAGER_CFLAGS += -g -DMNGR_DEBUG
 else
 MANAGER_LDFLAGS += -s