ecust onlinejudge 更新小记
最近把多年没有人维护的eoj代码改了一下，可以支持64位了。把过程记下来。
//C or C++
int LANG_CV[256]={SYS_execve, SYS_read, SYS_uname, SYS_write, SYS_open, SYS_close, SYS_access, SYS_brk, SYS_munmap, SYS_mprotect, SYS_mmap2, SYS_fstat64, SYS_set_thread_area, SYS_exit_group, SYS_exit, -1};
int LANG_CC[256]={1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0};
//Pascal
int LANG_PV[256]={SYS_execve, SYS_open, SYS_set_thread_area, SYS_brk, SYS_read, SYS_uname, SYS_write, SYS_ioctl, SYS_readlink, SYS_mmap, SYS_rt_sigaction, SYS_getrlimit, SYS_exit_group, SYS_exit, SYS_ugetrlimit, -1};
int LANG_PC[256]={1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0};
//Java
int LANG_JV[256]={SYS_execve, SYS_ugetrlimit, SYS_rt_sigprocmask, SYS_futex, SYS_read, SYS_mmap2, SYS_stat64, SYS_open, SYS_close, SYS_access, SYS_brk, SYS_readlink, SYS_munmap, SYS_close, SYS_uname, SYS_clone, SYS_uname, SYS_mprotect, SYS_rt_sigaction, SYS_sigprocmask, SYS_getrlimit, SYS_fstat64, SYS_getuid32, SYS_getgid32, SYS_geteuid32, SYS_getegid32, SYS_set_thread_area, SYS_set_tid_address, SYS_set_robust_list, SYS_exit_group, -1};
int LANG_JC[256]={2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0};改成
#ifdef __i386
//C or C++
int LANG_CV[256]={SYS_execve, SYS_read, SYS_uname, SYS_write, SYS_open, SYS_close, SYS_access, SYS_brk, SYS_munmap, SYS_mprotect, SYS_mmap2, SYS_fstat64, SYS_set_thread_area, SYS_exit_group, SYS_exit, -1};
int LANG_CC[256]={1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0};
//Pascal
int LANG_PV[256]={SYS_execve, SYS_open, SYS_set_thread_area, SYS_brk, SYS_read, SYS_uname, SYS_write, SYS_ioctl, SYS_readlink, SYS_mmap, SYS_rt_sigaction, SYS_getrlimit, SYS_exit_group, SYS_exit, SYS_ugetrlimit, -1};
int LANG_PC[256]={1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0};
//Java
int LANG_JV[256]={SYS_execve, SYS_ugetrlimit, SYS_rt_sigprocmask, SYS_futex, SYS_read, SYS_mmap2, SYS_stat64, SYS_open, SYS_close, SYS_access, SYS_brk, SYS_readlink, SYS_munmap, SYS_close, SYS_uname, SYS_clone, SYS_uname, SYS_mprotect, SYS_rt_sigaction, SYS_sigprocmask, SYS_getrlimit, SYS_fstat64, SYS_getuid32, SYS_getgid32, SYS_geteuid32, SYS_getegid32, SYS_set_thread_area, SYS_set_tid_address, SYS_set_robust_list, SYS_exit_group, -1};
int LANG_JC[256]={2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0};
#else
int LANG_JV[256]={61,22,6,33,8,13,16,111,110,39,79,SYS_fcntl,SYS_getdents64 , SYS_getrlimit, SYS_rt_sigprocmask, SYS_futex, SYS_read, SYS_mmap, SYS_stat, SYS_open, SYS_close, SYS_execve, SYS_access, SYS_brk, SYS_readlink, SYS_munmap, SYS_close, SYS_uname, SYS_clone, SYS_uname, SYS_mprotect, SYS_rt_sigaction, SYS_getrlimit, SYS_fstat, SYS_getuid, SYS_getgid, SYS_geteuid, SYS_getegid, SYS_set_thread_area, SYS_set_tid_address, SYS_set_robust_list, SYS_exit_group,158, -1};
int LANG_JC[256]={-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,-1, 0};
int LANG_CV[256]={SYS_time,SYS_read, SYS_uname, SYS_write, SYS_open, SYS_close, SYS_execve, SYS_access, SYS_brk, SYS_munmap, SYS_mprotect, SYS_mmap, SYS_fstat, SYS_set_thread_area, 252,SYS_arch_prctl,231,-1};
int LANG_CC[256]={1,-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 2,-1,-1,0};
int LANG_PV[256]={SYS_open, SYS_set_thread_area, SYS_brk, SYS_read, SYS_uname, SYS_write, SYS_execve, SYS_ioctl, SYS_readlink, SYS_mmap, SYS_rt_sigaction, SYS_getrlimit, 252,191,158,231,SYS_close,SYS_exit_group,SYS_munmap,SYS_time,4,-1};
int LANG_PC[256]={-1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, 2,-1,-1,-1,-1,-1,-1,-1,-1,0};
#endif添加：
#ifdef __i386
#define REG_SYSCALL orig_eax
#else
#define REG_SYSCALL orig_rax
#endif并且把原来直接调用orig_eax的地方改成REG_SYSCALL；
因为judge的时候是用ptrace判定程序是否调用了违法的系统调用的，而32位和64位的寄存器是不一样的。
需要注意的是 64位下 SYS_read的调用号居然是0，让我郁闷了半天。
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