[LTP] [PATCH] fcntl37: test posix lock across execve

[Xiong Zhou]

On Mon, Mar 26, 2018 at 04:33:33PM +0200, Cyril Hrubis wrote:
> Hi!
> > diff --git a/testcases/kernel/syscalls/fcntl/Makefile b/testcases/kernel/syscalls/fcntl/Makefile
> > index ae37214..7a06aa7 100644
> > --- a/testcases/kernel/syscalls/fcntl/Makefile
> > +++ b/testcases/kernel/syscalls/fcntl/Makefile
> > @@ -27,6 +27,9 @@ fcntl34_64: LDLIBS += -lpthread
> >  fcntl36: LDLIBS += -lpthread
> >  fcntl36_64: LDLIBS += -lpthread
> >  
...snip......

> > +	char prog_name[PATH_MAX];
> > +	ret = readlink("/proc/self/exe", prog_name, PATH_MAX);
> > +	char * const newargv[] = { prog_name, NULL, NULL };
> 
> This is far to complicated for no reason. The path to LTP test binaries
> is in $PATH so you can execute any LTP binary just by it's name.
> Absolute path is absolutely unneeded.

According to man 3 execve and my tests, i see absolute path is needed.

The perror after execve reports "No such file or directory".

Thanks,
Xiong