On Thu, 2005-05-19 at 17:19 +0200, Andreas Schwab wrote:
> "Richard B. Johnson" <[email protected]> writes:
>
> > It's also hard to see what is happening in 'C'. When I execute
> > this:
> >
> > #include <stdio.h>
> > #include <stdlib.h>
> >
> > int main(int cnt, char *argv[], char *env[], char *aux[])
> > {
> > printf("Aux 0 = %s\n", aux[0]);
> > // printf("Aux 1 = %s\n", aux[1]);
> > }
>
> There is no pointer to the aux table passed to main, you have to skip past
> the environment. Also, the aux table is an array of key/value pairs.
>
> > This shows that ld-linux.so, that got called first, didn't
> > preserve the vector.
>
> It does.
>
Here's a simple program to show you your pages size ;-), Now I don't
know enough about the elfinfo size and such to make this a real program,
but it should at least prove a point!
#include <stdio.h>
int main(int argc, char **argv, char **env)
{
int i;
long *p;
for (i=0; env[i]; i++);
p = (long*)(&env[i+1]);
for (i=0; i < 10; i++) {
long type = *p++;
if (type == 6)
printf("pagesz = 0x%lx (%ld)\n",*p,*p);
p++;
}
return 0;
}
-- Steve
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