[ECOS] how to link "gettimeofday" with arm-elf-gcc?
Thu Nov 20 21:47:00 GMT 2003
I just wanna know how to link gettimeofday with arm-elf-gcc.
I'm trying to compile a simple program on Cygwin,
with arm-elf-gcc which is downloaded and installed via ecos-install.tcl
provided at ecos site.
I think I have built libraries for SA1110 successfuly, such as:
drwxrwxrwx+ 2 yusuke None 0 Nov 19 15:17 ./
drwxrwxrwx+ 5 yusuke None 0 Oct 23 15:43 ../
-rw-rw-rw- 1 yusuke None 390748 Oct 23 15:32 extras.o
-rw-rw-rw- 1 yusuke None 402954 Oct 23 15:32 libextras.a
-rw-rw-rw- 1 yusuke None 8381312 Oct 23 15:32 libtarget.a
-rw-rw-rw- 1 yusuke None 2156 Oct 23 15:32 target.ld
-rw-rw-rw- 1 yusuke None 9236 Oct 23 15:32 vectors.o
However, when I compile as follows,
arm-elf-gcc.exe -g -I/home/yusuke/SA1110_new/sa1110_install/include \
-L/home/yusuke/SA1110_new/sa1110_install/lib -Ttarget.ld \
I got an error that linker cannot find "gettimeofday" as follows:
/ecos-c/DOCUME~1/yusuke/LOCALS~1/Temp/ccgyG7X0.o: In function `main':
/home/yusuke/SA1110_new/Hello/hello.c:12: undefined reference to
collect2: ld returned 1 exit status
My code is quite simple:
printf (" Hello World !!\n");
printf (" You are running this on the SA-1110\n");
struct timeval tv;
gettimeofday(&tv, NULL) ;
printf("%ld %ld\n", tv.tv_sec, tv.tv_usec);
Can anybody help me, please?
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss
More information about the Ecos-discuss