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- #include <sched.h>
- #include <errno.h>
- #include <sys/syscall.h>
- int
- clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg, ...)
- {
- long rval = -1;
- if (fn && child_stack) {
- __asm__ __volatile__ (
- "excpt 0;"
- "cc = r0 == 0;"
- "if !cc jump 1f;"
- "r0 = %4;"
- "p0 = %5;"
- "fp = 0;"
- #ifdef __BFIN_FDPIC__
- "p1 = [p0];"
- "p3 = [p0 + 4];"
- "call (p1);"
- #else
- "call (p0);"
- #endif
- "p0 = %6;"
- "excpt 0;"
- "1: nop;"
- : "=q0" (rval)
- : "qA" (__NR_clone), "q1" (child_stack), "q0" (flags), "a" (arg), "a" (fn), "i" (__NR_exit)
- : "CC");
- } else
- __set_errno(EINVAL);
- return rval;
- }
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