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#include "pthread_impl.h"
#include <sys/mman.h>
int pthread_getattr_np(pthread_t t, pthread_attr_t *a)
{
*a = (pthread_attr_t){0};
a->_a_detach = !!t->detached;
if (t->stack) {
a->_a_stackaddr = (uintptr_t)t->stack;
a->_a_stacksize = t->stack_size - DEFAULT_STACK_SIZE;
} else {
char *p = (void *)libc.auxv;
size_t l = PAGE_SIZE;
p += -(uintptr_t)p & PAGE_SIZE-1;
a->_a_stackaddr = (uintptr_t)p;
while (!posix_madvise(p-l-PAGE_SIZE, PAGE_SIZE, POSIX_MADV_NORMAL))
l += PAGE_SIZE;
a->_a_stacksize = l - DEFAULT_STACK_SIZE;
}
return 0;
}
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