nvramcui: Update Makefile
- Add all, clean and distclean to .PHONY - Rebuild nvramcui.elf when the makefile changes. - Update libpayload target to $(LIBPAYLOAD_DIR) target - these are the same thing, but by using the variable it makes it more obvious. - Remove .config.old as well as .config when running distclean. - Add CFLAGS to the LPGCC command line: -- Enable all warnings, set warnings as errors. -- Optimize for size -- Enable '-ffreestanding -nostdinc -nostdlib' to keep from building in system functions and to fix the warning: libpayload.h: warning: conflicting types for built-in function 'log2' static inline int log2(u32 x) { return sizeof(x) * 8 - clz(x) - 1; } Change-Id: Icc6c70b259cd7c22dc960cdb732927f9c0c93ee8 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/14482 Tested-by: build bot (Jenkins) Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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@ -3,10 +3,11 @@ XCOMPILE=$(LIBPAYLOAD_DIR)/libpayload.xcompile
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# build libpayload and put .config file in $(CURDIR) instead of ../libpayload
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# to avoid pollute the libpayload source directory and possible conflicts
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LPOPTS=obj="$(CURDIR)/build" DESTDIR="$(CURDIR)" DOTCONFIG="$(CURDIR)/.config"
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CFLAGS += -Wall -Werror -Os -ffreestanding -nostdinc -nostdlib
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all: nvramcui.elf
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libpayload:
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$(LIBPAYLOAD_DIR):
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$(MAKE) -C ../libpayload $(LPOPTS) defconfig
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$(MAKE) -C ../libpayload $(LPOPTS)
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$(MAKE) -C ../libpayload $(LPOPTS) install
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@ -14,19 +15,20 @@ libpayload:
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ifneq ($(strip $(wildcard libpayload)),)
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include $(XCOMPILE)
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LPGCC = CC="$(GCC_CC_x86_32)" "$(LIBPAYLOAD_DIR)/bin/lpgcc"
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%.elf: %.c
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$(LPGCC) -o $*.elf $*.c
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%.elf: %.c Makefile
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$(LPGCC) $(CFLAGS) -o $*.elf $*.c
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else
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# If libpayload is not found, first build libpayload,
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# then do the make, this time it'll find libpayload
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# and generate the nvramcui.elf target
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%.elf: libpayload
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%.elf: $(LIBPAYLOAD_DIR)
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$(MAKE) all
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endif
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.PHONY:
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clean:
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rm -f nvramcui.elf
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distclean: clean
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rm -rf build libpayload .config
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rm -rf build libpayload .config .config.old
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.PHONY: all clean distclean
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