#159274 - Optimus - Sat Jun 28, 2008 4:13 pm
There is a crazy problem I can't find what's the problem.
Simply I get the message "undefined reference to `sin'" but I have -lm in my makefile and I still get the same message..
..and by searching in your forum for people with the similar problem, their problem was solved by inserting -lm into their makefile. But only here when I do this, I still get the same problem :(
I even searched a lot of other crazy things, like changing the -L$ dir to some eabi dir and other subdirs. But I also get "undefined reference to __aeabi_idiv" if I do this. But I don't need to do this and the sin problem is still there.
I have installed the latest DevkitPro. I haven't made my makefile, I just downloaded from a site with NDS coding tutorials. I don't know much of what's going in on a makefile :P
In the main code I just #include <math.h> and then just use sin()
Ok here is the makefile:
It is for ARM9, there is also the ARM7 makefile inside which is similar but I won't paste this here too because it's already too big, except if you ask me to.
HELP!!!
(This problem is driving me crazy! Shouldn't by default basic math function work, in a devkitpro I installed and ready makefile, where I didn't touched anything? Even with -lm and #include <math.h> they still don't?)
_________________
Kode or Die!
Simply I get the message "undefined reference to `sin'" but I have -lm in my makefile and I still get the same message..
..and by searching in your forum for people with the similar problem, their problem was solved by inserting -lm into their makefile. But only here when I do this, I still get the same problem :(
I even searched a lot of other crazy things, like changing the -L$ dir to some eabi dir and other subdirs. But I also get "undefined reference to __aeabi_idiv" if I do this. But I don't need to do this and the sin problem is still there.
I have installed the latest DevkitPro. I haven't made my makefile, I just downloaded from a site with NDS coding tutorials. I don't know much of what's going in on a makefile :P
In the main code I just #include <math.h> and then just use sin()
Ok here is the makefile:
| Code: |
|
#--------------------------------------------------------------------------------- .SUFFIXES: #--------------------------------------------------------------------------------- ifeq ($(strip $(DEVKITARM)),) $(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM") endif include $(DEVKITARM)/ds_rules #--------------------------------------------------------------------------------- # BUILD is the directory where object files & intermediate files will be placed # SOURCES is a list of directories containing source code # INCLUDES is a list of directories containing extra header files # DATA is a list of directories containing binary files # all directories are relative to this makefile #--------------------------------------------------------------------------------- BUILD := build SOURCES := source INCLUDES := include DATA := #--------------------------------------------------------------------------------- # options for code generation #--------------------------------------------------------------------------------- ARCH := -mthumb -mthumb-interwork CFLAGS := -g -Wall -O3\ -march=armv5te -mtune=arm946e-s -fomit-frame-pointer\ $(ARCH) CFLAGS += $(INCLUDE) -DARM9 CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions ASFLAGS := -g $(ARCH) -march=armv5te -mtune=arm946e-s LDFLAGS = -specs=ds_arm9.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map) \ -lm #--------------------------------------------------------------------------------- # any extra libraries we wish to link with the project #--------------------------------------------------------------------------------- LIBS := -lnds9 #--------------------------------------------------------------------------------- # list of directories containing libraries, this must be the top level containing # include and lib #--------------------------------------------------------------------------------- LIBDIRS := $(LIBNDS) #--------------------------------------------------------------------------------- # no real need to edit anything past this point unless you need to add additional # rules for different file extensions #--------------------------------------------------------------------------------- ifneq ($(BUILD),$(notdir $(CURDIR))) #--------------------------------------------------------------------------------- export ARM9BIN := $(TOPDIR)/$(TARGET).arm9 export ARM9ELF := $(CURDIR)/$(TARGET).arm9.elf export DEPSDIR := $(CURDIR)/$(BUILD) export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \ $(foreach dir,$(DATA),$(CURDIR)/$(dir)) CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c))) CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp))) SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s))) BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*))) #--------------------------------------------------------------------------------- # use CXX for linking C++ projects, CC for standard C #--------------------------------------------------------------------------------- ifeq ($(strip $(CPPFILES)),) #--------------------------------------------------------------------------------- export LD := $(CC) #--------------------------------------------------------------------------------- else #--------------------------------------------------------------------------------- export LD := $(CXX) #--------------------------------------------------------------------------------- endif #--------------------------------------------------------------------------------- export OFILES := $(addsuffix .o,$(BINFILES)) \ $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o) export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \ $(foreach dir,$(LIBDIRS),-I$(dir)/include) \ -I$(CURDIR)/$(BUILD) export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib) .PHONY: $(BUILD) clean #--------------------------------------------------------------------------------- $(BUILD): @[ -d $@ ] || mkdir -p $@ @$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile #--------------------------------------------------------------------------------- clean: @echo clean ... @rm -fr $(BUILD) *.elf *.nds* *.bin #--------------------------------------------------------------------------------- else DEPENDS := $(OFILES:.o=.d) #--------------------------------------------------------------------------------- # main targets #--------------------------------------------------------------------------------- $(ARM9BIN) : $(ARM9ELF) @$(OBJCOPY) -O binary $< $@ @echo built ... $(notdir $@) $(ARM9ELF) : $(OFILES) @echo linking $(notdir $@) @$(LD) $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@ #--------------------------------------------------------------------------------- # you need a rule like this for each extension you use as binary data #--------------------------------------------------------------------------------- %.bin.o : %.bin #--------------------------------------------------------------------------------- @echo $(notdir $<) @$(bin2o) -include $(DEPENDS) #--------------------------------------------------------------------------------------- endif #--------------------------------------------------------------------------------------- |
It is for ARM9, there is also the ARM7 makefile inside which is similar but I won't paste this here too because it's already too big, except if you ask me to.
HELP!!!
(This problem is driving me crazy! Shouldn't by default basic math function work, in a devkitpro I installed and ready makefile, where I didn't touched anything? Even with -lm and #include <math.h> they still don't?)
_________________
Kode or Die!