[LTP] Syscall/io_* tests failing to compile

[LTP] Syscall/io_* tests failing to compile

[$rik@nth]

Hi All,


I am seeing below errors while compiling syscalls from the latest
available LTP tar ball from sourceforge. My system is having latest
libaio-dev library as well.

the same issue even observed for other io syscalls(io_getevents etc..)
as well. Do i need to setup any other environment to compile it
successfully.

/usr/bin/arm-linux-gnueabihf-gcc -static -g -O2 -fno-strict-aliasing
-pipe -Wall -W -static -Wold-style-definition
-I/home/LTP/ltp-full-20150420/testcases/kernel/include
-I../../../../include -I../../../../include -static -pthread
-L../../../../lib  io_destroy01.c   -lltp  -o io_destroy01
/tmp/cc0f3RO7.o: In function `main':
/home/LTP/ltp-full-20150420/testcases/kernel/syscalls/io_destroy/io_destroy01.c:77:
undefined reference to `io_destroy'
collect2: ld returned 1 exit status
make: *** [io_destroy01] Error 1

-- 
Thanks & Regards,
M.Srikanth Kumar.

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Re: [LTP] Syscall/io_* tests failing to compile

[Cyril Hrubis]

Hi!
> I am seeing below errors while compiling syscalls from the latest
> available LTP tar ball from sourceforge. My system is having latest
> libaio-dev library as well.
> 
> the same issue even observed for other io syscalls(io_getevents etc..)
> as well. Do i need to setup any other environment to compile it
> successfully.
> 
> /usr/bin/arm-linux-gnueabihf-gcc -static -g -O2 -fno-strict-aliasing
> -pipe -Wall -W -static -Wold-style-definition
> -I/home/LTP/ltp-full-20150420/testcases/kernel/include
> -I../../../../include -I../../../../include -static -pthread
> -L../../../../lib  io_destroy01.c   -lltp  -o io_destroy01
> /tmp/cc0f3RO7.o: In function `main':
> /home/LTP/ltp-full-20150420/testcases/kernel/syscalls/io_destroy/io_destroy01.c:77:
> undefined reference to `io_destroy'
> collect2: ld returned 1 exit status
> make: *** [io_destroy01] Error 1

The -laio is missing from the command line, but since you are seeing the
failure the HAVE_LIBAIO_H must be defined in config.h.

So it's looks like you have hand edited config.h (which is wrong thing
to do) after installing the library instead of reruning configure.

-- 
Cyril Hrubis
chrubis@suse.cz

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Re: [LTP] Syscall/io_* tests failing to compile

[Cyril Hrubis]

Hi!
> I haven't modified any of the config files at all. Even i cross
> checked on couple machines and faced similar issues.

Hmm, you are cross compiling right? Have you installed the libaio-dev on
the host machine? Because that will not work since that contains native
binaries and you cannot link against them.

If that is the case you can either cross compile the libaio and set
right path for linker etc. or set up an arm virtual machine or chroot
with qemu arm emulation and compile LTP there.

-- 
Cyril Hrubis
chrubis@suse.cz

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