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POmake uses "cc" instead of "arm-none-eabi-as"
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copied!<p>I have a problem when building a program with makefile. There is only a problem when make tries to compile assembly file named "startup.S". It looks like make uses compiler "cc" even if i specify "arm-none-eabi-as" in a makefile (take a look at variable AS). </p> <p>Here is my makefile:</p> <pre><code>SHELL := /bin/bash ROOT := $(shell pwd) INC := $(ROOT)/inc SRC := $(ROOT)/src STR := $(ROOT)/str EXE := exe AS := arm-none-eabi-as -mcpu=arm926ej-s -c -Wall -I $(INC) -I$(SRC) -I $(STR) GCC := arm-none-eabi-gcc -mcpu=arm926ej-s -c -Wall -I $(INC) -I$(SRC) -I $(STR) LDSCRIPT := test.ld LD := arm-none-eabi-ld -T $(LDSCRIPT) HEADERS := $(notdir $(wildcard $(INC)/*.h)) SOURCES_GCC := $(notdir $(wildcard $(SRC)/*.c)) SOURCES_AS := $(notdir $(wildcard $(STR)/*.S)) OBJECTS_GCC := $(SOURCES_GCC:.c=.o) OBJECTS_AS := $(SOURCES_AS:.S=.o) VPATH := $(STR):$(SRC):$(INC) all : $(EXE) @echo konec postopka: izvrsljiv program po imenu $(EXE) se nahaja v mapi $(ROOT) $(EXE) : $(OBJECTS_AS) $(OBJECTS_GCC) @echo objekti so: $(OBJECTS_AS) $(OBJECTS_GCC) @echo headerji so: $(HEADERS) @echo linkanje objektov v izvrsljiv program... $(LD) -o $@ $^ %.o : %.S %h @echo prevajanje ASSEMBLY izvornih datotek... $(AS) -o $@ $< %.o : %.c %h @echo prevajanje C izvornih datotek... $(GCC) -o $@ $< .PHONY : clean clean : @echo brisanje objektov rm *.o @echo brisanje izvrsljivega programa rm $(EXE) </code></pre> <p>Here is the error i get when typing comand make in a terminal. It clearly tells that "cc" doesnt understand assembly language, and this error is somewhat expected.</p> <pre><code>cc -c -o startup.o /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S: Assembler messages: /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:4: Error: no such instruction: `b Reset_Handler' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:5: Error: no such instruction: `b .' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:6: Error: no such instruction: `b .' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:7: Error: no such instruction: `b .' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:8: Error: no such instruction: `b .' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:9: Error: no such instruction: `b .' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:10: Error: no such instruction: `b .' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:11: Error: no such instruction: `b .' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:14: Error: no such instruction: `ldr sp,=stack_top' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:15: Error: no such instruction: `bl c_entry' /home/ziga/Dropbox/diploma/86x_linux/IDE_eclipse/eclipse_projects/makefile_8/str/startup.S:16: Error: no such instruction: `b .' </code></pre> <p>If i try to compile it manualy using "arm-none-eabi-as startup.S" it compiles fine... </p> <p><strong>My question would be, why does make uses cc instead arm-none-eabi-as? What am i missing here?</strong></p> <p>After all of your proposal i managed to make a makefile, that looks like this and it is working:</p> <pre><code>SHELL := /bin/bash ROOT := $(shell pwd) INC := $(ROOT)/inc SRC := $(ROOT)/src STR := $(ROOT)/str EXE := exe AS := arm-none-eabi-as -mcpu=arm926ej-s -c -Wall -I $(INC) -I$(SRC) -I $(STR) CC := arm-none-eabi-gcc -mcpu=arm926ej-s -c -Wall -I $(INC) -I$(SRC) -I $(STR) LDSCRIPT := ldscript_iram_gnu.ld LD := arm-none-eabi-ld -T $(LDSCRIPT) HEADERS := $(notdir $(wildcard $(INC)/*.h)) SOURCES_CC := $(notdir $(wildcard $(SRC)/*.c)) SOURCES_AS := $(notdir $(wildcard $(STR)/*.S)) OBJECTS_CC := $(SOURCES_CC:.c=.o) OBJECTS_AS := $(SOURCES_AS:.S=.o) VPATH := $(STR):$(SRC):$(INC) all : $(EXE) @echo konec postopka: izvrsljiv program po imenu $(EXE) se nahaja v mapi $(ROOT) $(EXE) : $(OBJECTS_AS) $(OBJECTS_CC) @echo objekti so: $(OBJECTS_AS) $(OBJECTS_CC) @echo headerji so: $(HEADERS) @echo linkanje objektov v izvrsljiv program... $(LD) -o $@ $^ %.o : %.S @echo prevajanje ASSEMBLY izvornih datotek... $(AS) -o $@ $< %.o : %.h %.o : %.c @echo prevajanje C izvornih datotek... $(CC) -o $@ $< %.o : %.h .PHONY : clean clean : @echo brisanje objektov rm *.So rm *.o @echo brisanje izvrsljivega programa rm $(EXE) </code></pre> <p>When i tried to use same makefile in other project (project for which my makefile has been built from the beginning) which also has same tree structure i get some errors: </p> <pre><code>make all objekti so: timer_example.o headerji so: ea3131_board.h ffconf.h ff.h integer.h lpc313x_cgu_driver.h lpc313x_cgu.h lpc313x_cgu_switchbox.h lpc313x_chip.h lpc313x_crc_driver.h lpc313x_dmac.h lpc313x_dma_driver.h lpc313x_evt_driver.h lpc313x_evt_router.h lpc313x_i2c_driver.h lpc313x_i2c.h lpc313x_intc_driver.h lpc313x_intc.h lpc313x_ioconf_driver.h lpc313x_ioconf.h lpc313x_mci_driver.h lpc313x_mci.h lpc313x_nandc.h lpc313x_nand_driver.h lpc313x_spi_driver.h lpc313x_spi.h lpc313x_sysreg.h lpc313x_timer_driver.h lpc313x_timer.h lpc313x_uart_driver.h lpc313x_uart.h lpc313x_wdt_driver.h lpc313x_wdt.h lpc31xx_vmem_driver.h lpc_api.h lpc_arm922t_arch.h lpc_arm922t_cp15_driver.h lpc_arm_arch.h lpc_bmp.h lpc_colors.h lpc_fat16.h lpc_fat16_private.h lpc_fonts.h lpc_heap.h lpc_helvr10.h lpc_irq_fiq.h lpc_lbecc.h lpc_lcd_params.h lpc_line_parser.h lpc_nandflash_params.h lpc_params.h lpc_rom8x16.h lpc_rom8x8.h lpc_sdmmc.h lpc_string.h lpc_swim_font.h lpc_swim.h lpc_swim_image.h lpc_types.h lpc_winfreesystem14x16.h lpc_x5x7.h lpc_x6x13.h linkanje objektov v izvrsljiv program... arm-none-eabi-ld -T ldscript_iram_gnu.ld -o exe timer_example.o ea3131_startup_entry.o: In function `clearzi_exit': (.text+0x170): undefined reference to `ea3131_init' timer_example.o: In function `timer0_user_interrupt': timer_example.c:(.text+0x15c): undefined reference to `timer_ioctl' timer_example.o: In function `uart_string_write': timer_example.c:(.text+0x1dc): undefined reference to `strlen' timer_example.c:(.text+0x208): undefined reference to `uart_write' timer_example.o: In function `c_entry': timer_example.c:(.text+0x258): undefined reference to `ea3131_board_init' timer_example.c:(.text+0x260): undefined reference to `cp15_set_vmmu_addr' timer_example.c:(.text+0x268): undefined reference to `int_initialize' timer_example.c:(.text+0x274): undefined reference to `int_install_irq_handler' timer_example.c:(.text+0x280): undefined reference to `timer_open' timer_example.c:(.text+0x2a4): undefined reference to `timer_ioctl' timer_example.c:(.text+0x2bc): undefined reference to `timer_ioctl' timer_example.c:(.text+0x2d4): undefined reference to `timer_ioctl' timer_example.c:(.text+0x2e0): undefined reference to `uart_open' timer_example.c:(.text+0x2f8): undefined reference to `memcpy' timer_example.c:(.text+0x32c): undefined reference to `timer_ioctl' timer_example.c:(.text+0x334): undefined reference to `int_enable' timer_example.c:(.text+0x38c): undefined reference to `sprintf' make: *** [exe] Error 1 </code></pre> <p>It looks to me that my makefile is doing OK now, but there are some unresolved references within my project which have nothing to do with my makefile. <strong>Still i need your conformation that my makefile is doing OK.</strong> Thank you all.</p> <p>Regards.</p>

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