add support for an optional staging directory for debug binaries

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14018 3c298f89-4303-0410-b956-a3cf2f4a3e73

Config.in

@@ -106,6 +106,13 @@ config DEBUG
 	help
 		Disables stripping and adds -g3 to the CFLAGS
 
+config DEBUG_DIR
+	bool "Install debugging binaries into a staging directory"
+	default n
+	help
+		This will install all compiled package binaries into build_dir/target-*/debug-*/,
+		useful for cross-debugging via gdb/gdbserver
+
 config NO_STRIP
 	bool "Install unstripped binary on the target (useful for native compiling/debugging)"
 	default n

include/package-debug.mk

@@ -0,0 +1,26 @@
+# 
+# Copyright (C) 2006,2007 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+ifeq ($(DUMP),)
+  define BuildTarget/debug
+
+    DEBUG_STAMP_$(1) := $(DEBUG_DIR)/stamp/$(1)
+
+    ifdef Package/$(1)/install
+      ifneq ($(CONFIG_PACKAGE_$(1))$(SDK)$(DEVELOPER),)
+        compile: $$(DEBUG_STAMP_$(1))
+      endif
+    endif
+
+    $$(DEBUG_STAMP_$(1)): $(PKG_BUILD_DIR)/.built
+		mkdir -p $(DEBUG_DIR)/stamp
+		$(call Package/$(1)/install,$(DEBUG_DIR))
+		touch $$(DEBUG_STAMP_$(1))
+
+
+  endef
+endif

include/package.mk

@@ -27,6 +27,7 @@ include $(INCLUDE_DIR)/quilt.mk
 include $(INCLUDE_DIR)/package-defaults.mk
 include $(INCLUDE_DIR)/package-dumpinfo.mk
 include $(INCLUDE_DIR)/package-ipkg.mk
+include $(INCLUDE_DIR)/package-debug.mk
 include $(INCLUDE_DIR)/package-bin.mk
 include $(INCLUDE_DIR)/autotools.mk
 
@@ -146,7 +147,7 @@ endif
     $(Dumpinfo), \
     $(foreach target, \
       $(if $(Package/$(1)/targets),$(Package/$(1)/targets), \
-        $(if $(PKG_TARGETS),$(PKG_TARGETS), ipkg ) \
+        $(if $(PKG_TARGETS),$(PKG_TARGETS), ipkg $(if $(CONFIG_DEBUG_DIR),debug)) \
       ), $(BuildTarget/$(target)) \
     ) \
   )

package/base-files/Makefile

@@ -160,6 +160,7 @@ define Package/base-files$(TARGET)/install
 		$(SED) 's/$$$$/:13848:0:99999:7:::/' $(1)/etc/shadow \
 	)
 	$(SED) 's,$$$$R,$(REVISION),g' $(1)/etc/banner
+	mkdir -p $(1)/CONTROL
 	mkdir -p $(1)/dev
 	mkdir -p $(1)/etc/crontabs
 	mkdir -p $(1)/jffs

rules.mk

@@ -64,6 +64,7 @@ PACKAGE_DIR:=$(BIN_DIR)/packages/$(ARCH)
 STAMP_DIR:=$(BUILD_DIR)/stamp
 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
 TARGET_DIR:=$(BUILD_DIR)/root-$(BOARD)
+DEBUG_DIR:=$(BUILD_DIR)/debug-$(BOARD)
 IPKG_STATE_DIR:=$(TARGET_DIR)/usr/lib/ipkg
 
 TARGET_PATH:=$(TOOLCHAIN_DIR)/usr/bin:$(STAGING_DIR_HOST)/bin:$(STAGING_DIR)/host/bin:$(PATH)