-nostdlib option!

[Ian Lance Taylor]

ali hagigat <hagigatali@gmail.com> writes:

> I am compiling my C programs with -nostdlib option without providing
> mem functions like memcpy and GNU tool chain has not complained so
> far(gcc 4.4.2, Fedora 12). Is that natural? I have defined char
> pointers, nested functions and no error so far. I wonder if anybody
> can write a simple C program and compile it with -nostdlib so that the
> compiler needs one of mem functions and the compiler stops with an
> error.

If I compile this file:

struct s { char a[100000]; };
struct s v;
void f(struct s *p) { v = *p; }

for the x86_64 with no optimization, I get a call to memcpy.

Ian