#include <errno.h> #include <asm/ptrace.h> #include <asm/unistd.h> int ptrace(int request, int pid, int addr, int data) { int ret; int res; if (request > 0 && request < 4) data = (int)&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; }