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74 lines
2.2 KiB
Plaintext
74 lines
2.2 KiB
Plaintext
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#!/usr/bin/make -f
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#
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# \brief Initcall order extraction tool for DDE Linux
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# \author Stefan Kalkowski
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# \date 2021-05-16
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#
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help:
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$(ECHO) ""
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$(ECHO) "Extracts initcall order into header file for DDE Linux"
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$(ECHO) ""
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$(ECHO) "usage:"
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$(ECHO) ""
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$(ECHO) " extract_initcall_order <command> [VARIABLES]"
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$(ECHO) ""
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$(ECHO) "--- available commands ---"
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$(ECHO) "help - shows this help"
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$(ECHO) "extract - extracts initcall order to HEADER_FILE"
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$(ECHO) ""
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$(ECHO) "--- used variables ---"
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$(ECHO) "LINUX_KERNEL_DIR - path to the Linux kernel build"
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$(ECHO) "HEADER_FILE - path to the file that shall be generated"
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$(ECHO) ""
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COMMAND := $(firstword $(MAKECMDGOALS))
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SHELL = bash
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BRIGHT_COL = \033[01;33m
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DEFAULT_COL = \033[0m
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ECHO = @echo -e
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ifeq ($(COMMAND),extract)
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ifeq ($(realpath $(LINUX_KERNEL_DIR)),)
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$(error You have to state a valid LINUX_KERNEL_DIR, try help)
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endif
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ifeq ($(HEADER_FILE),)
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$(error You have to state a HEADER_FILE, try help)
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endif
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endif
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define print_file_header
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echo "/*" > $(2);
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echo " * \\brief Array defining order of Linux Kernel initcalls" >> $(2);
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echo " * \\author Automatically generated file - do no edit" >> $(2);
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echo " * \\date $(1)" >> $(2);
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echo " */" >> $(2);
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echo "" >> $(2);
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echo "#pragma once" >> $(2);
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echo "" >> $(2);
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echo "static const char * lx_emul_initcall_order[] = {" >> $(2);
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endef
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define print_symbol
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echo " \"$(1)\"," >> $(2);
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endef
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define print_file_footer
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echo " \"END_OF_INITCALL_ORDER_ARRAY_DUMMY_ENTRY\"" >> $(1);
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echo "};" >> $(1);
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endef
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INITCALLS = $(shell grep -i "^[0-9a-f]* [t] __initcall_" $(LINUX_KERNEL_DIR)/System.map | awk '{print $$3}')
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extract:
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@$(call print_file_header,$(shell date +"%F"),$(HEADER_FILE))
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@$(foreach sym,$(INITCALLS),$(call print_symbol,$(sym),$(HEADER_FILE)))
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@$(call print_file_footer,$(HEADER_FILE))
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.PHONY: extract help
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