4ab37d27d3
Since toolchains other then older Code Sourcery (Mentor Graphics) might not use the arm-none-eabi triplet, make it possible to use any triplet by just setting the CROSS_COMPILE environment variable accordingly. Signed-off-by: Daniel Nyström <daniel@nystrom.st>
60 lines
2.1 KiB
Makefile
60 lines
2.1 KiB
Makefile
# Useful tools
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CROSS_COMPILE ?= arm-none-eabi-
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CC := $(CROSS_COMPILE)gcc
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CXX := $(CROSS_COMPILE)g++
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LD := $(CROSS_COMPILE)ld -v
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AR := $(CROSS_COMPILE)ar
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AS := $(CROSS_COMPILE)gcc
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OBJCOPY := $(CROSS_COMPILE)objcopy
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DISAS := $(CROSS_COMPILE)objdump
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OBJDUMP := $(CROSS_COMPILE)objdump
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SIZE := $(CROSS_COMPILE)size
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DFU := dfu-util
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# Suppress annoying output unless V is set
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ifndef V
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SILENT_CC = @echo ' [CC] ' $(@:$(BUILD_PATH)/%.o=%.c);
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SILENT_AS = @echo ' [AS] ' $(@:$(BUILD_PATH)/%.o=%.S);
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SILENT_CXX = @echo ' [CXX] ' $(@:$(BUILD_PATH)/%.o=%.cpp);
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SILENT_LD = @echo ' [LD] ' $(@F);
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SILENT_AR = @echo ' [AR] '
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SILENT_OBJCOPY = @echo ' [OBJCOPY] ' $(@F);
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SILENT_DISAS = @echo ' [DISAS] ' $(@:$(BUILD_PATH)/%.bin=%).disas;
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SILENT_OBJDUMP = @echo ' [OBJDUMP] ' $(OBJDUMP);
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endif
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# Extra build configuration
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BUILDDIRS :=
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TGT_BIN :=
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CFLAGS = $(GLOBAL_CFLAGS) $(TGT_CFLAGS)
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CXXFLAGS = $(GLOBAL_CXXFLAGS) $(TGT_CXXFLAGS)
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ASFLAGS = $(GLOBAL_ASFLAGS) $(TGT_ASFLAGS)
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# Hacks to determine extra libraries we need to link against based on
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# the toolchain. The default specifies no extra libraries, but it can
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# be overridden.
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LD_TOOLCHAIN_PATH := $(LDDIR)/toolchains/generic
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ifneq ($(findstring ARM/embedded,$(shell $(CC) --version)),)
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# GCC ARM Embedded, https://launchpad.net/gcc-arm-embedded/
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LD_TOOLCHAIN_PATH := $(LDDIR)/toolchains/gcc-arm-embedded
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endif
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ifneq ($(findstring Linaro GCC,$(shell $(CC) --version)),)
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# Summon/Linaro GCC ARM Embedded, https://github.com/esden/summon-arm-toolchain
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LD_TOOLCHAIN_PATH := $(LDDIR)/toolchains/gcc-arm-embedded
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endif
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# Add toolchain directory to LD search path
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TOOLCHAIN_LDFLAGS := -L $(LD_TOOLCHAIN_PATH)
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# General directory independent build rules, generate dependency information
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$(BUILD_PATH)/%.o: %.c
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$(SILENT_CC) $(CC) $(CFLAGS) -MMD -MP -MF $(@:%.o=%.d) -MT $@ -o $@ -c $<
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$(BUILD_PATH)/%.o: %.cpp
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$(SILENT_CXX) $(CXX) $(CFLAGS) $(CXXFLAGS) -MMD -MP -MF $(@:%.o=%.d) -MT $@ -o $@ -c $<
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$(BUILD_PATH)/%.o: %.S
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$(SILENT_AS) $(AS) $(ASFLAGS) -MMD -MP -MF $(@:%.o=%.d) -MT $@ -o $@ -c $<
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