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#include <errno.h>
#include <asm/ptrace.h>
#include <sys/syscall.h>
#include <stdarg.h>
int
ptrace(int request, ... /* int pid, int addr, int data */)
{
long ret;
long res;
int pid,addr,data;
va_list ap;
va_start(ap,request);
pid = va_arg(ap,int);
addr = va_arg(ap,int);
data = va_arg(ap,int);
va_end(ap);
if (request > 0 && request < 4) (long *)data = &ret;
__asm__ volatile ("sub.l er0,er0\n\t"
"mov.b %1,r0l\n\t"
"mov.l %2,er1\n\t"
"mov.l %3,er2\n\t"
"mov.l %4,er3\n\t"
"mov.l %5,er4\n\t"
"trapa #0\n\t"
"mov.l er0,%0"
:"=g" (res)
:"i" (__NR_ptrace), "g" (request), "g" (pid),
"g" (addr), "g" (data) : "er0", "er1", "er2", "er3", "er4");
if (res >= 0) {
if (request > 0 && request < 4) {
__set_errno(0);
return (ret);
}
return (int) res;
}
__set_errno(-res);
return -1;
}
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