# Dynamic hello example for Android NDK
# http://honeypod.blogspot.com/2007/12/dynamically-linked-hello-world-for.html

NDK = /usr/src/android-ndk-1.5_r1
NDK_ARCH = $(NDK)/build/platforms/android-1.5/arch-arm
NDK_COMP = $(NDK)/build/prebuilt/linux-x86/arm-eabi-4.2.1

ifneq ($(shell uname -m),armv6l)
# When  not compiling on the phone use cross compiler
CROSS_COMPILE = $(NDK_COMP)/bin/arm-eabi-
endif

CC = $(CROSS_COMPILE)gcc
LD = $(CROSS_COMPILE)ld

# bionic setbuf() segfaults, do not use
CFLAGS +=  -D'setbuf(a,b)='
CFLAGS +=  -DUSE_FPM
CFLAGS += -I$(NDK_ARCH)/usr/include

%o: %c Makefile
    $(CC) $(CFLAGS) -c $<

all: hello-gcc hello-ld

hello-gcc: hello.o fpm.o
    strace -o bla.txt -s 512 -f $(CC) -o $@ \
    -nostartfiles -nodefaultlibs -nostdlib \
        -lc -lm -lgcc -L$(NDK_ARCH)/usr/lib \
    -Wl,-rpath-link -Wl,$(NDK_ARCH)/usr/lib \
    -Wl,--dynamic-linker -Wl,/system/bin/linker \
    $(NDK_ARCH)/usr/lib/crtbegin_dynamic.o \
    $^ \
    $(NDK_ARCH)/usr/lib/crtend_android.o

hello-ld: hello.o fpm.o
    $(LD) -o $@ \
        -lc -lm -lgcc -L$(NDK_ARCH)/usr/lib \
    -L$(NDK_COMP)/lib/gcc/arm-eabi/4.2.1 \
    -rpath-link $(NDK_ARCH)/usr/lib \
    --dynamic-linker /system/bin/linker \
    $(NDK_ARCH)/usr/lib/crtbegin_dynamic.o \
    $^ \
    $(NDK_ARCH)/usr/lib/crtend_android.o

clean:
    rm -f hello-ld hello-gcc
    rm -f *.o
    rm -f *~