GNU make在makefile完成之前停止，没有错误

Question

早上好，我正在尝试在Windows7下使用Eclipse和GNU-Arm工具链为Atmel AT92SAM进行交叉编译。

我的问题是，构建过程在链接器完成后停止，尽管它还应该创建一个原始的二进制文件并打印大小。以下是创建的makefile eclipse的摘录：

# All Target
all: main.exe

# Tool invocations
main.exe: $(OBJS) $(USER_OBJS)
    @echo 'Building target: $@'
    @echo 'Invoking: Cross ARM C Linker'
    arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -Xlinker --gc-sections -Wl,-Map,"main.map" --entry=0x00000000 -o "main.exe" $(OBJS) $(USER_OBJS) $(LIBS)
    @echo 'Finished building target: $@'
    @echo ' '

main.bin: main.exe
    @echo 'Invoking: Cross ARM GNU Create Flash Image'
    arm-none-eabi-objcopy -O binary "main.exe"  "main.bin"
    @echo 'Finished building: $@'
    @echo ' '

main.siz: main.exe
    @echo 'Invoking: Cross ARM GNU Print Size'
    arm-none-eabi-size --format=berkeley "main.exe"
    @echo 'Finished building: $@'
    @echo ' '

但不会执行最后两个命令，也不会创建.bin。命令行输出为

...
Finished building: ../src/main.c

Building file: ../.metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.c
Invoking: Cross ARM C Compiler
arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -DTRACE_LEVEL=4 -Dflash -Dat91sam7x512  -I"[My includes] -std=gnu99 -MMD -MP -MF".metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.d" -MT".metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.o" -c -o ".metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.o" "../.metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.c"
Finished building: ../.metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.c

Building file: ../.metadata/.plugins/org.eclipse.cdt.make.core/specs.c
Invoking: Cross ARM C Compiler
arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -DTRACE_LEVEL=4 -Dflash -Dat91sam7x512 -I"[my includes]" -std=gnu99 -MMD -MP -MF".metadata/.plugins/org.eclipse.cdt.make.core/specs.d" -MT".metadata/.plugins/org.eclipse.cdt.make.core/specs.o" -c -o ".metadata/.plugins/org.eclipse.cdt.make.core/specs.o" "../.metadata/.plugins/org.eclipse.cdt.make.core/specs.c"
Finished building: ../.metadata/.plugins/org.eclipse.cdt.make.core/specs.c

Building target: main.exe
Invoking: Cross ARM C Linker
arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -Xlinker --gc-sections -Wl,-Map,"main.map" --entry=0x00000000 -o "main.exe"  [my object files]  ./.metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.o  ./.metadata/.plugins/org.eclipse.cdt.make.core/specs.o   -lm
Finished building target: main.exe


08:31:22 Build Finished (took 10s.91ms)

如您所见，未调用objcopy和size命令。有什么想法吗？

Answer 1

你可以直接在main.exe配方中添加大小，因为main.siz不是一个真正的输出文件(应该是.PHONY)：

all: main.bin

main.exe: $(OBJS) $(USER_OBJS)
    @echo 'Building target: $@'
    @echo 'Invoking: Cross ARM C Linker'
    arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -Xlinker --gc-sections -Wl,-Map,"main.map" --entry=0x00000000 -o "$@" $(OBJS) $(USER_OBJS) $(LIBS)
    arm-none-eabi-size --format=berkeley "$@"
    @echo 'Finished building target: $@'

main.bin: main.exe
    @echo 'Invoking: Cross ARM GNU Create Flash Image'
    arm-none-eabi-objcopy -O binary "$<" "$@"
    @echo 'Finished building: $@'