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#include <errno.h>
#include <asm/ptrace.h>
#include <sys/syscall.h>
int
ptrace(int request, int pid, int addr, int data)
{
long ret;
long res;
if (request > 0 && request < 4) (long *)data = &ret;
__asm__ volatile ("movel %1,%/d0\n\t"
"movel %2,%/d1\n\t"
"movel %3,%/d2\n\t"
"movel %4,%/d3\n\t"
"movel %5,%/d4\n\t"
"trap #0\n\t"
"movel %/d0,%0"
:"=g" (res)
:"i" (SYS_ptrace), "g" (request), "g" (pid),
"g" (addr), "g" (data) : "%d0", "%d1", "%d2", "%d3", "%d4");
if (res >= 0) {
if (request > 0 && request < 4) {
errno = 0;
return (ret);
}
return (int) res;
}
errno = -res;
return -1;
}
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