58 lines
1.7 KiB
Makefile
58 lines
1.7 KiB
Makefile
#
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# Copyright (C) 2021, MediaTek Inc. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Create a dependency rule for a .o file
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# Arguments:
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# $(1) = image_type (scp_bl2, bl33, etc.)
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# $(2) = source file name (without suffix)
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define ADD_DEP_RULE
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$(BUILD_PLAT)/$(1)/$(2).o: $(BUILD_PLAT)/$(1)/$(2).cfg.h
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endef
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# Create dependency rules for .o files
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# Arguments:
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# $(1) = image_type (scp_bl2, bl33, etc.)
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# $(2) = source file names (without suffix)
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define GEN_DEP_RULES
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$(foreach f,$(2),$(eval $(call ADD_DEP_RULE,$(1),$(f))))
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endef
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# Generate the content of a dependency file
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# Arguments:
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# $(1) = list of dependency variable names
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define GEN_DEP_HEADER_TEXT
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$(foreach dep,$(1),/* #define $(dep) $($(dep)) */\n)
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endef
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# Create commands to check & update a dependency file for a .o file
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# Arguments:
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# $(1) = image_type (scp_bl2, bl33, etc.)
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# $(2) = dependency header file path
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# $(3) = list of dependency variable names
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define CHECK_DEP
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$(BUILD_PLAT)/$(1)/$(2).cfg.h::
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$(q)mkdir -p $(BUILD_PLAT)/$(1); \
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echo "$(call GEN_DEP_HEADER_TEXT,$(3))" > $(BUILD_PLAT)/$(1)/$(2).cfg-new.h; \
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if ! test -f $(BUILD_PLAT)/$(1)/$(2).cfg.h; then \
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mv $(BUILD_PLAT)/$(1)/$(2).cfg-new.h $(BUILD_PLAT)/$(1)/$(2).cfg.h; \
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else \
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if ! cmp -s $(BUILD_PLAT)/$(1)/$(2).cfg.h $(BUILD_PLAT)/$(1)/$(2).cfg-new.h; then \
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mv -f $(BUILD_PLAT)/$(1)/$(2).cfg-new.h $(BUILD_PLAT)/$(1)/$(2).cfg.h; \
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else \
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rm -f $(BUILD_PLAT)/$(1)/$(2).cfg-new.h; \
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fi \
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fi
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endef
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# Create dependency rule for a .cfg.h file
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# Arguments:
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# $(1) = image_type (scp_bl2, bl33, etc.)
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# $(2) = dependency header file path
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# $(3) = list of dependency variable names
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define MAKE_DEP
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$(eval $(call CHECK_DEP,$(1),$(2),$(3)))
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endef
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