Cross compile for TX2 with make file

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi,

While I trying to compile my project for TX2 by using makefile at linux console.

While I am trying to change the target architecture from X64 to Arm64 I am facing compilations error:
nvcc fatal : A single input file is required for a non-link phase when an outputfile is specified

while my makefile is:

CXXCU =nvcc aarch64-linux-g++ -O0 -std=c++11 --compile --relocatable-device-code=true -gencode arch=compute_61,code=compute_61

OBJ = $(addprefix $(OBJDIR)/, $(CSOURCES:.c=.o) $(CXXSOURCES:.cpp=.o) $(CXXSOURCESCU:.cu=.o) )
CXXFLAGS = $(INCLUDEDIRS)

CXX =$(CXXCU) #g++
CC =$(CXXCU) # gcc

LDFLAGS = $(LIBDIRS) $(LIBS)
all: $(PROGRAM)

$(PROGRAM): $(OBJ)
ar rc $(PROGRAM).a $(OBJ)
ranlib $(PROGRAM).a

$(OBJDIR)/%.o: ./%.cpp
@mkdir -p $(@D)
$(CXX) $(CXXFLAGS) -c -o $@ $^

$(OBJDIR)/%.o: ./%.c
@mkdir -p $(@D)
$(CC) $(CXXFLAGS) -c -o $@ $^

$(OBJDIR)/%.o: ./%.cu
@mkdir -p $(@D)
$(CXXCU) $(INCLUDEDIRS) -c -o $@ $^

clean:
$(RM) -f $(CXXOBJECTS) $(PROGRAM)

When I removes the aarch64-linux-g++ argument the compilation is pass.
What I am doing wrong at the makefile that the compilation for the Arm64 is fail.

Yehonatan

2

Hi yehonatanswjf8y,

Not sure what’s the actual issue but for TX2 you should use below compiler options.

arch=compute_62,code=sm_62
3

Hi,

I also tried that argument for Tx2.

But when I set the arch=compute_62,code=sm_62 it should compile for arm64??
There is no need to set another flag in order to compile the c code for aarch64?

4

Please take a look at [url]http://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#cross-platform[/url]. Or try to use/reference to options in nsight (http://www.nvidia.com/object/nsight.html).