#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" (__NR_ptrace), "g" (request), "g" (pid), "g" (addr), "g" (data) : "%d0", "%d1", "%d2", "%d3", "%d4"); if (res >= 0) { if (request > 0 && request < 4) { __set_errno(0); return (ret); } return (int) res; } __set_errno(-res); return -1; }