Build and (Cross) Debug Native Code with Makefile (wip) - matianfu/survivor GitHub Wiki

#Paths and settings

TARGET_PRODUCT = am335xevm_sk  
ANDROID_ROOT = /home/ma/devkit/JB422
BIONIC_LIBC = $(ANDROID_ROOT)/bionic/libc
PRODUCT_OUT = $(ANDROID_ROOT)/out/target/product/$(TARGET_PRODUCT)
CROSS_COMPILE = $(ANDROID_ROOT)/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.6/bin/arm-linux-androideabi-

# Tool names
AS = $(CROSS_COMPILE)as
AR = $(CROSS_COMPILE)ar
CC = $(CROSS_COMPILE)gcc
CPP = $(CC) -E
LD = $(CROSS_COMPILE)ld
NM = $(CROSS_COMPILE)nm
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
RANLIB = $(CROSS_COMPILE)ranlib
READELF = $(CROSS_COMPILE)readelf
SIZE = $(CROSS_COMPILE)size
STRINGS = $(CROSS_COMPILE)strings
STRIP = $(CROSS_COMPILE)strip

export AS AR CC CPP LD NM OBJCOPY OBJDUMP RANLIB READELF \
SIZE STRINGS STRIP

# Build settings
CFLAGS = -O0 -Wall -fno-short-enums -ggdb

HEADER_OPS = -I$(BIONIC_LIBC)/include \
-I$(BIONIC_LIBC)/arch-arm/include \
-I$(BIONIC_LIBC)/kernel/common \
-I$(BIONIC_LIBC)/kernel/arch-arm \
-I$(ANDROID_ROOT)/system/core/include

LDFLAGS = -nostdlib -Wl,-dynamic-linker,/system/bin/linker \
$(PRODUCT_OUT)/obj/lib/crtbegin_dynamic.o \
$(PRODUCT_OUT)/obj/lib/crtend_android.o \
-L$(PRODUCT_OUT)/obj/lib -lc -ldl -llog

# Installation variables
EXEC_NAME = hello-native
INSTALL = install
INSTALL_DIR = $(PRODUCT_OUT)/system/bin

# Files needed for the build
OBJS = hello-native.o

# Make rules
all: hello-native

.c.o:
$(CC) $(CFLAGS) $(HEADER_OPS) -c $<

hello-native: ${OBJS}
$(CC) -o $(EXEC_NAME) ${OBJS} $(LDFLAGS)

install: hello-native
test -d $(INSTALL_DIR) || $(INSTALL) -d -m 755 $(INSTALL_DIR)
$(INSTALL) -m 755 $(EXEC_NAME) $(INSTALL_DIR)

clean:
rm -f *.o $(EXEC_NAME) core
distclean:
rm -f *~
rm -f *.o $(EXEC_NAME) core