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[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [December 2008 Threads] Help me to build FreeRTOS using g++Posted by Leonidos mak on December 28, 2008 HI. I very need your help )
I want to use c++ with FreeRTOS. I read that I can build FreeRTOS with g++ and use c++. So I downloaded FreeRTOS demo (CORTEX_LM3Sxxxx_Eclipse), and change "arm-none-eabi-gcc" to "arm-none-eabi-g++"....
There was many errors, so I have to add some typecasts and to remove data hiding....
And than he told me this: ....... ALIGN_STRUCT_END=__attribute\(\(aligned\(4\)\)\) -D sprintf=usprintf -D snprintf=usnprintf -D printf=uipprintf -I ../../Common/ethernet/uIP/uip-1.0/uip -I ./webserver -ffunction-sections -fdata-sections -I ../../Common/drivers/LuminaryMicro main.o timertest.o ./ParTest/ParTest.o rit128x96x4.o osram128x64x4.o formike128x128x16.o ../../Common/drivers/LuminaryMicro/ustdlib.o ../../Common/Minimal/BlockQ.o ../../Common/Minimal/blocktim.o ../../Common/Minimal/death.o ../../Common/Minimal/integer.o ../../Common/Minimal/PollQ.o ../../Common/Minimal/semtest.o ../../Common/Minimal/GenQTest.o ../../Common/Minimal/QPeek.o ../../Common/Minimal/recmutex.o ../../Common/Minimal/IntQueue.o ./IntQueueTimer.o ./webserver/uIP_Task.o ./webserver/emac.o ./webserver/httpd.o ./webserver/httpd-cgi.o ./webserver/httpd-fs.o ./webserver/http-strings.o ../../Common/ethernet/uIP/uip-1.0/uip/uip_arp.o ../../Common/ethernet/uIP/uip-1.0/uip/psock.o ../../Common/ethernet/uIP/uip-1.0/uip/timer.o ../../Common/ethernet/uIP/uip-1.0/uip/uip.o ../../../Source/list.o ../../../Source/queue.o ../../../Source/tasks.o ../../../Source/portable/GCC/ARM_CM3/port.o ../../../Source/portable/MemMang/heap_2.o startup.o ../../Common/drivers/LuminaryMicro/arm-none-eabi-gcc/libdriver.a ../../Common/drivers/LuminaryMicro/arm-none-eabi-gcc/libgr.a -nostartfiles -Xlinker -oRTOSDemo.axf -Xlinker -M -Xlinker -Map=rtosdemo.map -Xlinker --no-gc-sections d:/arm/bin/../lib/gcc/arm-none-eabi/4.2.3/../../../../arm-none-eabi/bin/ld.exe: section .ARM.exidx.text._Z29vApplicationStackOverflowHookPP19tskTaskControlBlockPa [00016184 -> 0001618b] overlaps section .data [00016184 -> 000167d7] d:/arm/bin/../lib/gcc/arm-none-eabi/4.2.3/../../../../arm-none-eabi/bin/ld.exe: section .bss [000167d8 -> 000209c3] overlaps section .ARM.exidx.text._Z10clock_initv [000167d4 -> 000167db] d:/arm/bin/../lib/gcc/arm-none-eabi/4.2.3/../../../../arm-none-eabi/bin/ld.exe: section .ARM.extab.text._Z28vApplicationProcessFormInputPcl [000167dc -> 000167e7] overlaps section .bss [000167d8 -> 000209c3] main.o: In function `vOLEDTask': C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/main.c:432: undefined reference to `usprintf' ./webserver/httpd.o: In function `handle_input': C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:256: undefined reference to `http_get' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:256: undefined reference to `http_get' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:266: undefined reference to `http_index_html' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:266: undefined reference to `http_index_html' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:287: undefined reference to `http_referer' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:287: undefined reference to `http_referer' ./webserver/httpd.o: In function `send_headers': C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:198: undefined reference to `http_content_type_binary' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:198: undefined reference to `http_content_type_binary' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:198: undefined reference to `http_content_type_binary' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:198: undefined reference to `http_content_type_binary' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:199: undefined reference to `http_html' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:199: undefined reference to `http_html' C:\Documents and Settings\Leonidos\Desktop\FreeRTOS\Demo\CORTEX_LM3Sxxxx_Eclipse\RTOSDemo/webserver/httpd.c:199: undefined reference to `http_shtml' ......
Please give me some advice to undestang what is going on there. ) Thanks.
RE: Help me to build FreeRTOS using g++Posted by Leonidos mak on December 28, 2008 I've read that I can compile .c files as C and .cpp files as C++... but I cant write such make file... I found some, but it isn't work...
It would be wonderful if someone give us instructions how to use C++ with FreeRTOS. Maybe some one have make file I need. I ready to donate some money to person who help me to solve my problems.
Thanks for your help.
RE: Help me to build FreeRTOS using g++Posted by dave m on December 29, 2008 I've been using FreeRTOS with g++ on LM3Sxxxx processors for a while now. You shouldn't try to compile the FreeRTOS base files with c++; it's probably too much work, and no benefit. My Makefiles use gcc for the FreeRTOS files and g++ for my own code. Link with g++ and you should be good to go. Here is my Makefile for the USB device I've been working on. It is more complicated than you really need, because I use the same code & Makefiles to build binaries for LPC2K and GameBoy SP/DS machines (the USB code doesn't work on the GameBoy, of course).
I have a clean version of FreeRTOS installed in a directory tree outside my own code, and I use VPATH to help make find the files. (I think I may have had to copy/modify one or two FreeRTOS files to make all this work, but it's worth the small amount of hassle for the ability to swap in a new version of FreeRTOS without having to separate out my code or figure out what changes I made.)
## ## Makefile ## ## Made by dave m. <xxx@yyy.com> ## ## Started on Sat Jan 19 18:02:01 2008 dave m. ## Last update Sat Jan 19 18:02:01 2008 dave m. ##
CPU_FAMILY=LM3Sx #CPU_FAMILY=LPC2k #CPU_FAMILY=GBA
TARGET=USBTest
SOURCES=main.cc \ mydevice.cc \ util.cc \ usb.cc \ usb-descriptors.cc \ usb-endpoints.cc \ usb-interface.cc \ usb-configuration.cc \ usb-device.cc \ usb-string.cc \ usb-ep0.cc \ usb-debug.cc \ serial_io.cc \ list.c \ queue.c \ tasks.c \ port.c \ heap_1.c
LOADLIBES=-lEMF \ -lc \ -lgcc
############################################################################# ############################################################################# #############################################################################
ifeq ($(CPU_FAMILY),LM3Sx) CPUFLAGS=-mcpu=cortex-m3 -mthumb DEFINES+=-DGCC_ARMCM3 FreeRTOS_PLATFORM=GCC/ARM_CM3 endif ifeq ($(CPU_FAMILY),LPC2k) CPUFLAGS=-mcpu=arm7tdmi -march=armv4t -mthumb-interwork #CPUFLAGS=-mcpu=arm7tdmi -march=armv4t -mthumb -mthumb-interwork DEFINES+=-DGCC_LPC2k FreeRTOS_PLATFORM=GCC/ARM7_LPC2k endif ifeq ($(CPU_FAMILY),GBA) CPUFLAGS=-mcpu=arm7tdmi -march=armv4t -mthumb-interwork #CPUFLAGS=-mcpu=arm7tdmi -march=armv4t -mthumb -mthumb-interwork DEFINES+=-DGCC_GBA FreeRTOS_PLATFORM=GCC/ARM7_GBA endif
VPATH=../../../FreeRTOS/Source \ ../../../FreeRTOS/Source/portable/MemMang \ ../../../FreeRTOS/Source/portable/$(FreeRTOS_PLATFORM)
MLDIR=$(shell $(CC) $(CPUFLAGS) -print-multi-directory)
LIBDIRS=-L../../lib/$(MLDIR)
ifneq (,$(findstring -mthumb,$(filter-out -mthumb-interwork,$(CPUFLAGS)))) DEFINES+=-DTHUMB endif
INCLUDES+=-I. \ -I../../include \ -I../../include/$(CPU_FAMILY) \ -I../../Source/include \ -I../../../Luminary
CPPFLAGS?=$(DEFINES) $(INCLUDES)
CDEBUGFLAGS?=-O3 -g -Wall \ --no-exceptions \ -mfloat-abi=soft -mfpu=vfp \ $(CPUFLAGS)
CFLAGS+=$(CDEBUGFLAGS) CXXFLAGS+=$(CDEBUGFLAGS) \ --no-rtti \ -fno-threadsafe-statics
LDFLAGS=-Wl,-N,-M,--demangle,--sort-common,-u,__boot__ \ -Wl,-T,../../etc/$(CPU_FAMILY)-ld.cmd \ -Wl,--defsym -Wl,__cxa_pure_virtual=0 \ -nostdlib \ -mfloat-abi=soft -mfpu=vfp \ $(CPUFLAGS) \ $(LIBDIRS)
TOOLPREFIX=arm-elf- CC=$(TOOLPREFIX)gcc CXX=$(TOOLPREFIX)g++ LD=$(TOOLPREFIX)ld AS=$(TOOLPREFIX)as AR=$(TOOLPREFIX)ar OBJCOPY=$(TOOLPREFIX)objcopy OBJDUMP=$(TOOLPREFIX)objdump
sOBJ=$(SOURCES:.s=.o) cOBJ=$(sOBJ:.c=.o) OBJ=$(cOBJ:.cc=.o)
all:$(TARGET).bin
$(TARGET):$(OBJ) $(CXX) $(LDFLAGS) -o $@ $^ $(LOADLIBES) > $@.map $(OBJDUMP) --disassemble-all --demangle $@ > $@.lst
clean: $(RM) $(TARGET) $(TARGET).hex $(TARGET).bin $(TARGET).map $(TARGET).lst \ $(OBJ) *.d
%.hex:% $(OBJCOPY) -S -O ihex $< $@
%.bin:% $(OBJCOPY) -S -O binary $< $@
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