Hi,
I built arm-apple-darwin-gcc with this tutorial.

I was able to compile and install a simple "Hello world" application,
but when I try to compile something more complex (c++, some external libraries), I get "Undefined symbols" error for the following symbols:

___muldf3vfp,
___fixdfsivfp,
___fixsfsivfp,
__Unwind_SjLj_Resume,
__Unwind_SjLj_Unregister,
__Unwind_SjLj_Register,
___floatsisfvfp

Does anyone knows what these symbols are or where can I find their definitions?


Thanks,
Asaf Pinhassi.

Problem solved.
The problem was linking libgcc_eh.a
To solve this, use:
LIBFLAGS += -L"/usr/local/arm-apple-darwin/lib"
instead of:
LIBFLAGS += -L/Developer/SDKs/MacOSX10.4u.sdk/usr/lib

I created the toolchain env using this tutorial:
http://ansani.it/2008/08/12/build-th...n-macosx-105x/

I used this makefile:

Code:

SDKVER=2.2
SDK=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS$(SDKVER).sdk
#SDK=/usr/local/share/iphone-filesystem


LIBFLAGS += -L/usr/local/share/iphone-filesystem/usr/lib
LIBFLAGS += -L/usr/lib 
LIBFLAGS += -L"/usr/local/arm-apple-darwin/lib"
INCLUDES += -I. 


# the IP address of your iPhone or iPod Touch
DEVICE	= iPhone

APPL	= MyApp

#DOTH	= MyApp.h
#OBJS	= $(SRCPATH)/src/AnimContainer.cpp $(SRCPATH)/src/AnimContainer.cpp

TGZFILE	= $(HOME)/backup/MyApp.tgz


# ----------------------------------------------------------------------

PROJECTNAME=MyApp
APPFOLDER=$(PROJECTNAME).app
INSTALLFOLDER=$(PROJECTNAME).app

IPHONE_IP=iPhone



CC=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin9-gcc-4.0.1
CPP=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin9-g++-4.0.1

LD=$(CPP)
LDFLAGS += -arch arm -lobjc
LDFLAGS += -lz
LDFLAGS += -lstdc++.6
#LDFLAGS += -licucore
LDFLAGS += -llockdown
LDFLAGS += -lgcc_s.1
LDFLAGS += -framework CoreFoundation
LDFLAGS += -framework Foundation			
LDFLAGS += -framework UIKit					
LDFLAGS += -framework CoreGraphics			
LDFLAGS += -framework QuartzCore			
LDFLAGS += -framework GraphicsServices
#LDFLAGS += -framework CoreSurface
#LDFLAGS += -framework CoreAudio
#LDFLAGS += -framework Celestial
LDFLAGS += -framework AudioToolbox			
#LDFLAGS += -framework WebCore
#LDFLAGS += -framework WebKit
#LDFLAGS += -framework SystemConfiguration

LDFLAGS += -L"/usr/local/share/iphone-filesystem/usr/lib"

LDFLAGS += -framework OpenGLES				


LDFLAGS += -isysroot $(SDK)
LDFLAGS += -F"$(SDK)/System/Library/Frameworks"
LDFLAGS += -F"$(SDK)/System/Library/PrivateFrameworks"
LDFLAGS += -bind_at_load
LDFLAGS += -multiply_defined suppress
LDFLAGS += -march=arm
LDFLAGS += -mmacosx-version-min=10.4
#LDFLAGS += -mmacosx-version-min=10.5

LDFLAGS += -mcpu=arm1176jzf-s

CFLAGS += -isysroot $(SDK)
CFLAGS += -DDEBUG -Wall 
CFLAGS += -Diphoneos_version_min=2.0

BUILDDIR=./build/2.0
SRCDIR=./src
RESDIR=./Resources
OBJS+=$(patsubst %.m,%.o,$(wildcard $(SRCDIR)/*.m))
OBJS+=$(patsubst %.c,%.o,$(wildcard $(SRCDIR)/*.c))
OBJS+=$(patsubst %.m,%.o,$(wildcard ./*.m))
RESOURCES=$(wildcard $(RESDIR)/*)
RESOURCES+=$(wildcard ./*.png)

all: $(PROJECTNAME)

$(PROJECTNAME): $(OBJS)
	$(LD) $(LDFLAGS) -o $@ $^ $(LIBFLAGS) 

%.o: %.m
	$(CC) -c $(CFLAGS) $< -o $@

%.o: %.c
	$(CC) -c $(CFLAGS) $< -o $@


%.o: %.cpp
	$(CPP) $(INCLUDES) -c $(CFLAGS) $< -o $@


dist: $(PROJECTNAME)
	rm -rf $(BUILDDIR)
	mkdir -p $(BUILDDIR)/$(APPFOLDER)
	cp -r $(RESOURCES) $(BUILDDIR)/$(APPFOLDER)
	cp Info.plist $(BUILDDIR)/$(APPFOLDER)/Info.plist
	@echo "APPL????" > $(BUILDDIR)/$(APPFOLDER)/PkgInfo
	export CODESIGN_ALLOCATE=/usr/toolchain2/pre/bin/arm-apple-darwin9-codesign_allocate; ldid -S $(PROJECTNAME)
	cp $(PROJECTNAME) $(BUILDDIR)/$(APPFOLDER)

install: dist
	ping -t 3 -c 1 $(IPHONE_IP)
	ssh root@$(IPHONE_IP) 'rm -fr /Applications/$(INSTALLFOLDER)'
	scp -r $(BUILDDIR)/$(APPFOLDER) root@$(IPHONE_IP):/Applications/$(INSTALLFOLDER)
	ssh root@$(IPHONE_IP) 'respring'
	@echo "Application $(INSTALLFOLDER) installed"

uninstall:
	ping -t 3 -c 1 $(IPHONE_IP)
	ssh root@$(IPHONE_IP) 'rm -fr /Applications/$(INSTALLFOLDER); respring'
	@echo "Application $(INSTALLFOLDER) uninstalled"

clean:
	@rm -f $(SRCPATH)/src/*.o
	@rm -rf $(BUILDDIR)
	@rm -f $(PROJECTNAME)

Goodluck for anyone who experiences it in the future,
Asaf Pinhassi