| ## |
| ## Copyright 2012 Google Inc. |
| ## |
| ## 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 of the License. |
| ## |
| ## This program is distributed in the hope that it will be useful, |
| ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
| ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| ## GNU General Public License for more details. |
| ## |
| |
| subdirs-y := arch base board boot debug diag drivers image net netboot vboot |
| |
| DEPTHCHARGE = $(obj)/depthcharge |
| NETBOOT = $(obj)/netboot |
| DEV = $(obj)/dev |
| |
| DONT_GC_NETBOOT = -Wl,-u,netboot_entry |
| |
| # -c has no effect with -E but tells lpgcc that this is not a link step. |
| PREPROCESS_ONLY := -E -c -P -x assembler-with-cpp -undef |
| |
| LDSCRIPT_SRC := $(src)/src/image/depthcharge.ldscript.S |
| LDSCRIPT_OBJ := $(obj)/image/depthcharge.ldscript |
| |
| # For ldscript generation, include depthcharge config.h |
| # (KCONFIG_AUTOHEADER), and libpayload config.h (included |
| # from kconfig.h). kconfig.h also defines the CONFIG(option) |
| # macro, which should be used when accessing boolean |
| # config.h values. |
| $(LDSCRIPT_OBJ): $(LDSCRIPT_SRC) $(KCONFIG_AUTOHEADER) |
| @printf " LDSCRIPT $@\n" |
| $(XCC) $(PREPROCESS_ONLY) $(INCLUDES) $< -o $@ |
| |
| # Defines rules for the payload executable |
| # $1 output file base name (will result in $1.elf) |
| # $2 objects to be linked into the binary |
| # $3 additional compiler/linker flags to pass |
| define declare_payload |
| |
| $1.elf: $2 $$$$(VBOOT_LIB) $$$$(TLCL_LIB) $(LDSCRIPT_OBJ) |
| @printf " LD $$(subst $$(obj)/,,$$@.tmp)\n" |
| $(Q)$$(XCC) $$(LINK_FLAGS) $3 -o $$@.tmp \ |
| $$(filter-out $(LDSCRIPT_OBJ),$$^) |
| @printf " OBJCOPY $$(subst $$(obj)/,,$$@)\n" |
| $(Q)$$(OBJCOPY) --remove-section=".shared_data" \ |
| --remove-section=".cparams" --remove-section=".gbb_copy" \ |
| $$@.tmp $$@ |
| |
| $(notdir $1): $1.elf |
| PHONY += $(notdir $1) |
| endef |
| |
| $(eval $(call declare_payload,$(DEPTHCHARGE),$$$$(depthcharge-objs) \ |
| $$$$(vboot-objs),)) |
| |
| $(eval $(call declare_payload,$(NETBOOT),$$$$(depthcharge-objs) \ |
| $$$$(netboot-objs) $$$$(net-objs) $$$$(uip-objs),)) |
| |
| $(eval $(call declare_payload,$(DEV),$$$$(depthcharge-objs) \ |
| $$$$(netboot-objs) $$$$(net-objs) $$$$(uip-objs) $$$$(dev-objs) \ |
| $$$$(vboot-objs),$(DONT_GC_NETBOOT))) |
