abi_long do_syscall(void *cpu_env, int num, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6, abi_long arg7, abi_long arg8) { CPUState *cpu = ENV_GET_CPU(cpu_env); abi_long ret; struct stat st; struct statfs stfs; void *p; #if defined(DEBUG_ERESTARTSYS) /* Debug-only code for exercising the syscall-restart code paths * in the per-architecture cpu main loops: restart every syscall * the guest makes once before letting it through. */ { static int flag; flag = !flag; if (flag) { return -TARGET_ERESTARTSYS; #endif #ifdef DEBUG gemu_log("syscall %d", num); #endif trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8); if(do_strace) print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); switch(num) { case TARGET_NR_exit: /* In old applications this may be used to implement _exit(2). However in threaded applictions it is used for thread termination, and _exit_group is used for application termination. Do thread termination if we have more then one thread. */ if (block_signals()) { ret = -TARGET_ERESTARTSYS; if (CPU_NEXT(first_cpu)) { TaskState *ts; cpu_list_lock(); /* Remove the CPU from the list. */ QTAILQ_REMOVE(&cpus, cpu, node); cpu_list_unlock(); ts = cpu->opaque; if (ts->child_tidptr) { put_user_u32(0, ts->child_tidptr); sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX, NULL, NULL, 0); thread_cpu = NULL; object_unref(OBJECT(cpu)); g_free(ts); rcu_unregister_thread(); pthread_exit(NULL); #ifdef TARGET_GPROF _mcleanup(); #endif gdb_exit(cpu_env, arg1); _exit(arg1); ret = 0; /* avoid warning */ case TARGET_NR_read: if (arg3 == 0) ret = 0; else { if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) goto efault; ret = get_errno(safe_read(arg1, p, arg3)); if (ret >= 0 && fd_trans_host_to_target_data(arg1)) { ret = fd_trans_host_to_target_data(arg1)(p, ret); unlock_user(p, arg2, ret); case TARGET_NR_write: if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) goto efault; ret = get_errno(safe_write(arg1, p, arg3)); unlock_user(p, arg2, 0); #ifdef TARGET_NR_open case TARGET_NR_open: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(do_openat(cpu_env, AT_FDCWD, p, target_to_host_bitmask(arg2, fcntl_flags_tbl), arg3)); fd_trans_unregister(ret); unlock_user(p, arg1, 0); #endif case TARGET_NR_openat: if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(do_openat(cpu_env, arg1, p, target_to_host_bitmask(arg3, fcntl_flags_tbl), arg4)); fd_trans_unregister(ret); unlock_user(p, arg2, 0); #if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) case TARGET_NR_name_to_handle_at: ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5); #endif #if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) case TARGET_NR_open_by_handle_at: ret = do_open_by_handle_at(arg1, arg2, arg3); fd_trans_unregister(ret); #endif case TARGET_NR_close: fd_trans_unregister(arg1); ret = get_errno(close(arg1)); case TARGET_NR_brk: ret = do_brk(arg1); #ifdef TARGET_NR_fork case TARGET_NR_fork: ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0)); #endif #ifdef TARGET_NR_waitpid case TARGET_NR_waitpid: { int status; ret = get_errno(safe_wait4(arg1, &status, arg3, 0)); if (!is_error(ret) && arg2 && ret && put_user_s32(host_to_target_waitstatus(status), arg2)) goto efault; #endif #ifdef TARGET_NR_waitid case TARGET_NR_waitid: { siginfo_t info; info.si_pid = 0; ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL)); if (!is_error(ret) && arg3 && info.si_pid != 0) { if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0))) goto efault; host_to_target_siginfo(p, &info); unlock_user(p, arg3, sizeof(target_siginfo_t)); #endif #ifdef TARGET_NR_creat /* not on alpha */ case TARGET_NR_creat: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(creat(p, arg2)); fd_trans_unregister(ret); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_link case TARGET_NR_link: { void * p2; p = lock_user_string(arg1); p2 = lock_user_string(arg2); if (!p || !p2) ret = -TARGET_EFAULT; else ret = get_errno(link(p, p2)); unlock_user(p2, arg2, 0); unlock_user(p, arg1, 0); #endif #if defined(TARGET_NR_linkat) case TARGET_NR_linkat: { void * p2 = NULL; if (!arg2 || !arg4) goto efault; p = lock_user_string(arg2); p2 = lock_user_string(arg4); if (!p || !p2) ret = -TARGET_EFAULT; else ret = get_errno(linkat(arg1, p, arg3, p2, arg5)); unlock_user(p, arg2, 0); unlock_user(p2, arg4, 0); #endif #ifdef TARGET_NR_unlink case TARGET_NR_unlink: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(unlink(p)); unlock_user(p, arg1, 0); #endif #if defined(TARGET_NR_unlinkat) case TARGET_NR_unlinkat: if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(unlinkat(arg1, p, arg3)); unlock_user(p, arg2, 0); #endif case TARGET_NR_execve: { char **argp, **envp; int argc, envc; abi_ulong gp; abi_ulong guest_argp; abi_ulong guest_envp; abi_ulong addr; char **q; int total_size = 0; argc = 0; guest_argp = arg2; for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) { if (get_user_ual(addr, gp)) goto efault; if (!addr) argc++; envc = 0; guest_envp = arg3; for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) { if (get_user_ual(addr, gp)) goto efault; if (!addr) envc++; argp = alloca((argc + 1) * sizeof(void *)); envp = alloca((envc + 1) * sizeof(void *)); for (gp = guest_argp, q = argp; gp; gp += sizeof(abi_ulong), q++) { if (get_user_ual(addr, gp)) goto execve_efault; if (!addr) if (!(*q = lock_user_string(addr))) goto execve_efault; total_size += strlen(*q) + 1; *q = NULL; for (gp = guest_envp, q = envp; gp; gp += sizeof(abi_ulong), q++) { if (get_user_ual(addr, gp)) goto execve_efault; if (!addr) if (!(*q = lock_user_string(addr))) goto execve_efault; total_size += strlen(*q) + 1; *q = NULL; if (!(p = lock_user_string(arg1))) goto execve_efault; /* Although execve() is not an interruptible syscall it is * a special case where we must use the safe_syscall wrapper: * if we allow a signal to happen before we make the host * syscall then we will 'lose' it, because at the point of * execve the process leaves QEMU's control. So we use the * safe syscall wrapper to ensure that we either take the * signal as a guest signal, or else it does not happen * before the execve completes and makes it the other * program's problem. */ ret = get_errno(safe_execve(p, argp, envp)); unlock_user(p, arg1, 0); goto execve_end; execve_efault: ret = -TARGET_EFAULT; execve_end: for (gp = guest_argp, q = argp; *q; gp += sizeof(abi_ulong), q++) { if (get_user_ual(addr, gp) || !addr) unlock_user(*q, addr, 0); for (gp = guest_envp, q = envp; *q; gp += sizeof(abi_ulong), q++) { if (get_user_ual(addr, gp) || !addr) unlock_user(*q, addr, 0); case TARGET_NR_chdir: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(chdir(p)); unlock_user(p, arg1, 0); #ifdef TARGET_NR_time case TARGET_NR_time: { time_t host_time; ret = get_errno(time(&host_time)); if (!is_error(ret) && arg1 && put_user_sal(host_time, arg1)) goto efault; #endif #ifdef TARGET_NR_mknod case TARGET_NR_mknod: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(mknod(p, arg2, arg3)); unlock_user(p, arg1, 0); #endif #if defined(TARGET_NR_mknodat) case TARGET_NR_mknodat: if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(mknodat(arg1, p, arg3, arg4)); unlock_user(p, arg2, 0); #endif #ifdef TARGET_NR_chmod case TARGET_NR_chmod: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(chmod(p, arg2)); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_break case TARGET_NR_break: goto unimplemented; #endif #ifdef TARGET_NR_oldstat case TARGET_NR_oldstat: goto unimplemented; #endif case TARGET_NR_lseek: ret = get_errno(lseek(arg1, arg2, arg3)); #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA) /* Alpha specific */ case TARGET_NR_getxpid: ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid(); ret = get_errno(getpid()); #endif #ifdef TARGET_NR_getpid case TARGET_NR_getpid: ret = get_errno(getpid()); #endif case TARGET_NR_mount: { /* need to look at the data field */ void *p2, *p3; if (arg1) { p = lock_user_string(arg1); if (!p) { goto efault; } else { p = NULL; p2 = lock_user_string(arg2); if (!p2) { if (arg1) { unlock_user(p, arg1, 0); goto efault; if (arg3) { p3 = lock_user_string(arg3); if (!p3) { if (arg1) { unlock_user(p, arg1, 0); unlock_user(p2, arg2, 0); goto efault; } else { p3 = NULL; /* FIXME - arg5 should be locked, but it isn't clear how to * do that since it's not guaranteed to be a NULL-terminated * string. */ if (!arg5) { ret = mount(p, p2, p3, (unsigned long)arg4, NULL); } else { ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)); ret = get_errno(ret); if (arg1) { unlock_user(p, arg1, 0); unlock_user(p2, arg2, 0); if (arg3) { unlock_user(p3, arg3, 0); #ifdef TARGET_NR_umount case TARGET_NR_umount: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(umount(p)); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_stime /* not on alpha */ case TARGET_NR_stime: { time_t host_time; if (get_user_sal(host_time, arg1)) goto efault; ret = get_errno(stime(&host_time)); #endif case TARGET_NR_ptrace: goto unimplemented; #ifdef TARGET_NR_alarm /* not on alpha */ case TARGET_NR_alarm: ret = alarm(arg1); #endif #ifdef TARGET_NR_oldfstat case TARGET_NR_oldfstat: goto unimplemented; #endif #ifdef TARGET_NR_pause /* not on alpha */ case TARGET_NR_pause: if (!block_signals()) { sigsuspend(&((TaskState *)cpu->opaque)->signal_mask); ret = -TARGET_EINTR; #endif #ifdef TARGET_NR_utime case TARGET_NR_utime: { struct utimbuf tbuf, *host_tbuf; struct target_utimbuf *target_tbuf; if (arg2) { if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) goto efault; tbuf.actime = tswapal(target_tbuf->actime); tbuf.modtime = tswapal(target_tbuf->modtime); unlock_user_struct(target_tbuf, arg2, 0); host_tbuf = &tbuf; } else { host_tbuf = NULL; if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(utime(p, host_tbuf)); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_utimes case TARGET_NR_utimes: { struct timeval *tvp, tv[2]; if (arg2) { if (copy_from_user_timeval(&tv[0], arg2) || copy_from_user_timeval(&tv[1], arg2 + sizeof(struct target_timeval))) goto efault; tvp = tv; } else { tvp = NULL; if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(utimes(p, tvp)); unlock_user(p, arg1, 0); #endif #if defined(TARGET_NR_futimesat) case TARGET_NR_futimesat: { struct timeval *tvp, tv[2]; if (arg3) { if (copy_from_user_timeval(&tv[0], arg3) || copy_from_user_timeval(&tv[1], arg3 + sizeof(struct target_timeval))) goto efault; tvp = tv; } else { tvp = NULL; if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(futimesat(arg1, path(p), tvp)); unlock_user(p, arg2, 0); #endif #ifdef TARGET_NR_stty case TARGET_NR_stty: goto unimplemented; #endif #ifdef TARGET_NR_gtty case TARGET_NR_gtty: goto unimplemented; #endif #ifdef TARGET_NR_access case TARGET_NR_access: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(access(path(p), arg2)); unlock_user(p, arg1, 0); #endif #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) case TARGET_NR_faccessat: if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(faccessat(arg1, p, arg3, 0)); unlock_user(p, arg2, 0); #endif #ifdef TARGET_NR_nice /* not on alpha */ case TARGET_NR_nice: ret = get_errno(nice(arg1)); #endif #ifdef TARGET_NR_ftime case TARGET_NR_ftime: goto unimplemented; #endif case TARGET_NR_sync: sync(); ret = 0; case TARGET_NR_kill: ret = get_errno(safe_kill(arg1, target_to_host_signal(arg2))); #ifdef TARGET_NR_rename case TARGET_NR_rename: { void *p2; p = lock_user_string(arg1); p2 = lock_user_string(arg2); if (!p || !p2) ret = -TARGET_EFAULT; else ret = get_errno(rename(p, p2)); unlock_user(p2, arg2, 0); unlock_user(p, arg1, 0); #endif #if defined(TARGET_NR_renameat) case TARGET_NR_renameat: { void *p2; p = lock_user_string(arg2); p2 = lock_user_string(arg4); if (!p || !p2) ret = -TARGET_EFAULT; else ret = get_errno(renameat(arg1, p, arg3, p2)); unlock_user(p2, arg4, 0); unlock_user(p, arg2, 0); #endif #ifdef TARGET_NR_mkdir case TARGET_NR_mkdir: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(mkdir(p, arg2)); unlock_user(p, arg1, 0); #endif #if defined(TARGET_NR_mkdirat) case TARGET_NR_mkdirat: if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(mkdirat(arg1, p, arg3)); unlock_user(p, arg2, 0); #endif #ifdef TARGET_NR_rmdir case TARGET_NR_rmdir: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(rmdir(p)); unlock_user(p, arg1, 0); #endif case TARGET_NR_dup: ret = get_errno(dup(arg1)); if (ret >= 0) { fd_trans_dup(arg1, ret); #ifdef TARGET_NR_pipe case TARGET_NR_pipe: ret = do_pipe(cpu_env, arg1, 0, 0); #endif #ifdef TARGET_NR_pipe2 case TARGET_NR_pipe2: ret = do_pipe(cpu_env, arg1, target_to_host_bitmask(arg2, fcntl_flags_tbl), 1); #endif case TARGET_NR_times: { struct target_tms *tmsp; struct tms tms; ret = get_errno(times(&tms)); if (arg1) { tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); if (!tmsp) goto efault; tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime)); tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime)); tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime)); tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime)); if (!is_error(ret)) ret = host_to_target_clock_t(ret); #ifdef TARGET_NR_prof case TARGET_NR_prof: goto unimplemented; #endif #ifdef TARGET_NR_signal case TARGET_NR_signal: goto unimplemented; #endif case TARGET_NR_acct: if (arg1 == 0) { ret = get_errno(acct(NULL)); } else { if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(acct(path(p))); unlock_user(p, arg1, 0); #ifdef TARGET_NR_umount2 case TARGET_NR_umount2: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(umount2(p, arg2)); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_lock case TARGET_NR_lock: goto unimplemented; #endif case TARGET_NR_ioctl: ret = do_ioctl(arg1, arg2, arg3); case TARGET_NR_fcntl: ret = do_fcntl(arg1, arg2, arg3); #ifdef TARGET_NR_mpx case TARGET_NR_mpx: goto unimplemented; #endif case TARGET_NR_setpgid: ret = get_errno(setpgid(arg1, arg2)); #ifdef TARGET_NR_ulimit case TARGET_NR_ulimit: goto unimplemented; #endif #ifdef TARGET_NR_oldolduname case TARGET_NR_oldolduname: goto unimplemented; #endif case TARGET_NR_umask: ret = get_errno(umask(arg1)); case TARGET_NR_chroot: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(chroot(p)); unlock_user(p, arg1, 0); #ifdef TARGET_NR_ustat case TARGET_NR_ustat: goto unimplemented; #endif #ifdef TARGET_NR_dup2 case TARGET_NR_dup2: ret = get_errno(dup2(arg1, arg2)); if (ret >= 0) { fd_trans_dup(arg1, arg2); #endif #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3) case TARGET_NR_dup3: ret = get_errno(dup3(arg1, arg2, arg3)); if (ret >= 0) { fd_trans_dup(arg1, arg2); #endif #ifdef TARGET_NR_getppid /* not on alpha */ case TARGET_NR_getppid: ret = get_errno(getppid()); #endif #ifdef TARGET_NR_getpgrp case TARGET_NR_getpgrp: ret = get_errno(getpgrp()); #endif case TARGET_NR_setsid: ret = get_errno(setsid()); #ifdef TARGET_NR_sigaction case TARGET_NR_sigaction: { #if defined(TARGET_ALPHA) struct target_sigaction act, oact, *pact = 0; struct target_old_sigaction *old_act; if (arg2) { if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) goto efault; act._sa_handler = old_act->_sa_handler; target_siginitset(&act.sa_mask, old_act->sa_mask); act.sa_flags = old_act->sa_flags; act.sa_restorer = 0; unlock_user_struct(old_act, arg2, 0); pact = &act; ret = get_errno(do_sigaction(arg1, pact, &oact)); if (!is_error(ret) && arg3) { if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) goto efault; old_act->_sa_handler = oact._sa_handler; old_act->sa_mask = oact.sa_mask.sig[0]; old_act->sa_flags = oact.sa_flags; unlock_user_struct(old_act, arg3, 1); #elif defined(TARGET_MIPS) struct target_sigaction act, oact, *pact, *old_act; if (arg2) { if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) goto efault; act._sa_handler = old_act->_sa_handler; target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); act.sa_flags = old_act->sa_flags; unlock_user_struct(old_act, arg2, 0); pact = &act; } else { pact = NULL; ret = get_errno(do_sigaction(arg1, pact, &oact)); if (!is_error(ret) && arg3) { if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) goto efault; old_act->_sa_handler = oact._sa_handler; old_act->sa_flags = oact.sa_flags; old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; old_act->sa_mask.sig[1] = 0; old_act->sa_mask.sig[2] = 0; old_act->sa_mask.sig[3] = 0; unlock_user_struct(old_act, arg3, 1); #else struct target_old_sigaction *old_act; struct target_sigaction act, oact, *pact; if (arg2) { if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) goto efault; act._sa_handler = old_act->_sa_handler; target_siginitset(&act.sa_mask, old_act->sa_mask); act.sa_flags = old_act->sa_flags; act.sa_restorer = old_act->sa_restorer; unlock_user_struct(old_act, arg2, 0); pact = &act; } else { pact = NULL; ret = get_errno(do_sigaction(arg1, pact, &oact)); if (!is_error(ret) && arg3) { if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) goto efault; old_act->_sa_handler = oact._sa_handler; old_act->sa_mask = oact.sa_mask.sig[0]; old_act->sa_flags = oact.sa_flags; old_act->sa_restorer = oact.sa_restorer; unlock_user_struct(old_act, arg3, 1); #endif #endif case TARGET_NR_rt_sigaction: { #if defined(TARGET_ALPHA) struct target_sigaction act, oact, *pact = 0; struct target_rt_sigaction *rt_act; if (arg4 != sizeof(target_sigset_t)) { if (arg2) { if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1)) goto efault; act._sa_handler = rt_act->_sa_handler; act.sa_mask = rt_act->sa_mask; act.sa_flags = rt_act->sa_flags; act.sa_restorer = arg5; unlock_user_struct(rt_act, arg2, 0); pact = &act; ret = get_errno(do_sigaction(arg1, pact, &oact)); if (!is_error(ret) && arg3) { if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0)) goto efault; rt_act->_sa_handler = oact._sa_handler; rt_act->sa_mask = oact.sa_mask; rt_act->sa_flags = oact.sa_flags; unlock_user_struct(rt_act, arg3, 1); #else struct target_sigaction *act; struct target_sigaction *oact; if (arg4 != sizeof(target_sigset_t)) { if (arg2) { if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) goto efault; } else act = NULL; if (arg3) { if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { ret = -TARGET_EFAULT; goto rt_sigaction_fail; } else oact = NULL; ret = get_errno(do_sigaction(arg1, act, oact)); rt_sigaction_fail: if (act) unlock_user_struct(act, arg2, 0); if (oact) unlock_user_struct(oact, arg3, 1); #endif #ifdef TARGET_NR_sgetmask /* not on alpha */ case TARGET_NR_sgetmask: { sigset_t cur_set; abi_ulong target_set; ret = do_sigprocmask(0, NULL, &cur_set); if (!ret) { host_to_target_old_sigset(&target_set, &cur_set); ret = target_set; #endif #ifdef TARGET_NR_ssetmask /* not on alpha */ case TARGET_NR_ssetmask: { sigset_t set, oset, cur_set; abi_ulong target_set = arg1; /* We only have one word of the new mask so we must read * the rest of it with do_sigprocmask() and OR in this word. * We are guaranteed that a do_sigprocmask() that only queries * the signal mask will not fail. */ ret = do_sigprocmask(0, NULL, &cur_set); assert(!ret); target_to_host_old_sigset(&set, &target_set); sigorset(&set, &set, &cur_set); ret = do_sigprocmask(SIG_SETMASK, &set, &oset); if (!ret) { host_to_target_old_sigset(&target_set, &oset); ret = target_set; #endif #ifdef TARGET_NR_sigprocmask case TARGET_NR_sigprocmask: { #if defined(TARGET_ALPHA) sigset_t set, oldset; abi_ulong mask; int how; switch (arg1) { case TARGET_SIG_BLOCK: how = SIG_BLOCK; case TARGET_SIG_UNBLOCK: how = SIG_UNBLOCK; case TARGET_SIG_SETMASK: how = SIG_SETMASK; default: goto fail; mask = arg2; target_to_host_old_sigset(&set, &mask); ret = do_sigprocmask(how, &set, &oldset); if (!is_error(ret)) { host_to_target_old_sigset(&mask, &oldset); ret = mask; ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */ #else sigset_t set, oldset, *set_ptr; int how; if (arg2) { switch (arg1) { case TARGET_SIG_BLOCK: how = SIG_BLOCK; case TARGET_SIG_UNBLOCK: how = SIG_UNBLOCK; case TARGET_SIG_SETMASK: how = SIG_SETMASK; default: goto fail; if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) goto efault; target_to_host_old_sigset(&set, p); unlock_user(p, arg2, 0); set_ptr = &set; } else { how = 0; set_ptr = NULL; ret = do_sigprocmask(how, set_ptr, &oldset); if (!is_error(ret) && arg3) { if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) goto efault; host_to_target_old_sigset(p, &oldset); unlock_user(p, arg3, sizeof(target_sigset_t)); #endif #endif case TARGET_NR_rt_sigprocmask: { int how = arg1; sigset_t set, oldset, *set_ptr; if (arg4 != sizeof(target_sigset_t)) { if (arg2) { switch(how) { case TARGET_SIG_BLOCK: how = SIG_BLOCK; case TARGET_SIG_UNBLOCK: how = SIG_UNBLOCK; case TARGET_SIG_SETMASK: how = SIG_SETMASK; default: goto fail; if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) goto efault; target_to_host_sigset(&set, p); unlock_user(p, arg2, 0); set_ptr = &set; } else { how = 0; set_ptr = NULL; ret = do_sigprocmask(how, set_ptr, &oldset); if (!is_error(ret) && arg3) { if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) goto efault; host_to_target_sigset(p, &oldset); unlock_user(p, arg3, sizeof(target_sigset_t)); #ifdef TARGET_NR_sigpending case TARGET_NR_sigpending: { sigset_t set; ret = get_errno(sigpending(&set)); if (!is_error(ret)) { if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) goto efault; host_to_target_old_sigset(p, &set); unlock_user(p, arg1, sizeof(target_sigset_t)); #endif case TARGET_NR_rt_sigpending: { sigset_t set; /* Yes, this check is >, not != like most. We follow the kernel's * logic and it does it like this because it implements * NR_sigpending through the same code path, and in that case * the old_sigset_t is smaller in size. */ if (arg2 > sizeof(target_sigset_t)) { ret = get_errno(sigpending(&set)); if (!is_error(ret)) { if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) goto efault; host_to_target_sigset(p, &set); unlock_user(p, arg1, sizeof(target_sigset_t)); #ifdef TARGET_NR_sigsuspend case TARGET_NR_sigsuspend: { TaskState *ts = cpu->opaque; #if defined(TARGET_ALPHA) abi_ulong mask = arg1; target_to_host_old_sigset(&ts->sigsuspend_mask, &mask); #else if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) goto efault; target_to_host_old_sigset(&ts->sigsuspend_mask, p); unlock_user(p, arg1, 0); #endif ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask, SIGSET_T_SIZE)); if (ret != -TARGET_ERESTARTSYS) { ts->in_sigsuspend = 1; #endif case TARGET_NR_rt_sigsuspend: { TaskState *ts = cpu->opaque; if (arg2 != sizeof(target_sigset_t)) { if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) goto efault; target_to_host_sigset(&ts->sigsuspend_mask, p); unlock_user(p, arg1, 0); ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask, SIGSET_T_SIZE)); if (ret != -TARGET_ERESTARTSYS) { ts->in_sigsuspend = 1; case TARGET_NR_rt_sigtimedwait: { sigset_t set; struct timespec uts, *puts; siginfo_t uinfo; if (arg4 != sizeof(target_sigset_t)) { if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) goto efault; target_to_host_sigset(&set, p); unlock_user(p, arg1, 0); if (arg3) { puts = &uts; target_to_host_timespec(puts, arg3); } else { puts = NULL; ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts, SIGSET_T_SIZE)); if (!is_error(ret)) { if (arg2) { p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0); if (!p) { goto efault; host_to_target_siginfo(p, &uinfo); unlock_user(p, arg2, sizeof(target_siginfo_t)); ret = host_to_target_signal(ret); case TARGET_NR_rt_sigqueueinfo: { siginfo_t uinfo; p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1); if (!p) { goto efault; target_to_host_siginfo(&uinfo, p); unlock_user(p, arg1, 0); ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); #ifdef TARGET_NR_sigreturn case TARGET_NR_sigreturn: if (block_signals()) { ret = -TARGET_ERESTARTSYS; } else { ret = do_sigreturn(cpu_env); #endif case TARGET_NR_rt_sigreturn: if (block_signals()) { ret = -TARGET_ERESTARTSYS; } else { ret = do_rt_sigreturn(cpu_env); case TARGET_NR_sethostname: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(sethostname(p, arg2)); unlock_user(p, arg1, 0); case TARGET_NR_setrlimit: { int resource = target_to_host_resource(arg1); struct target_rlimit *target_rlim; struct rlimit rlim; if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) goto efault; rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur); rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max); unlock_user_struct(target_rlim, arg2, 0); ret = get_errno(setrlimit(resource, &rlim)); case TARGET_NR_getrlimit: { int resource = target_to_host_resource(arg1); struct target_rlimit *target_rlim; struct rlimit rlim; ret = get_errno(getrlimit(resource, &rlim)); if (!is_error(ret)) { if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) goto efault; target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); unlock_user_struct(target_rlim, arg2, 1); case TARGET_NR_getrusage: { struct rusage rusage; ret = get_errno(getrusage(arg1, &rusage)); if (!is_error(ret)) { ret = host_to_target_rusage(arg2, &rusage); case TARGET_NR_gettimeofday: { struct timeval tv; ret = get_errno(gettimeofday(&tv, NULL)); if (!is_error(ret)) { if (copy_to_user_timeval(arg1, &tv)) goto efault; case TARGET_NR_settimeofday: { struct timeval tv, *ptv = NULL; struct timezone tz, *ptz = NULL; if (arg1) { if (copy_from_user_timeval(&tv, arg1)) { goto efault; ptv = &tv; if (arg2) { if (copy_from_user_timezone(&tz, arg2)) { goto efault; ptz = &tz; ret = get_errno(settimeofday(ptv, ptz)); #if defined(TARGET_NR_select) case TARGET_NR_select: #if defined(TARGET_S390X) || defined(TARGET_ALPHA) ret = do_select(arg1, arg2, arg3, arg4, arg5); #else { struct target_sel_arg_struct *sel; abi_ulong inp, outp, exp, tvp; long nsel; if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) goto efault; nsel = tswapal(sel->n); inp = tswapal(sel->inp); outp = tswapal(sel->outp); exp = tswapal(sel->exp); tvp = tswapal(sel->tvp); unlock_user_struct(sel, arg1, 0); ret = do_select(nsel, inp, outp, exp, tvp); #endif #endif #ifdef TARGET_NR_pselect6 case TARGET_NR_pselect6: { abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr; fd_set rfds, wfds, efds; fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; struct timespec ts, *ts_ptr; /* * The 6th arg is actually two args smashed together, * so we cannot use the C library. */ sigset_t set; struct { sigset_t *set; size_t size; } sig, *sig_ptr; abi_ulong arg_sigset, arg_sigsize, *arg7; target_sigset_t *target_sigset; n = arg1; rfd_addr = arg2; wfd_addr = arg3; efd_addr = arg4; ts_addr = arg5; ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n); if (ret) { goto fail; ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n); if (ret) { goto fail; ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n); if (ret) { goto fail; /* * This takes a timespec, and not a timeval, so we cannot * use the do_select() helper ... */ if (ts_addr) { if (target_to_host_timespec(&ts, ts_addr)) { goto efault; ts_ptr = &ts; } else { ts_ptr = NULL; /* Extract the two packed args for the sigset */ if (arg6) { sig_ptr = &sig; sig.size = SIGSET_T_SIZE; arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1); if (!arg7) { goto efault; arg_sigset = tswapal(arg7[0]); arg_sigsize = tswapal(arg7[1]); unlock_user(arg7, arg6, 0); if (arg_sigset) { sig.set = &set; if (arg_sigsize != sizeof(*target_sigset)) { /* Like the kernel, we enforce correct size sigsets */ goto fail; target_sigset = lock_user(VERIFY_READ, arg_sigset, sizeof(*target_sigset), 1); if (!target_sigset) { goto efault; target_to_host_sigset(&set, target_sigset); unlock_user(target_sigset, arg_sigset, 0); } else { sig.set = NULL; } else { sig_ptr = NULL; ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr, ts_ptr, sig_ptr)); if (!is_error(ret)) { if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) goto efault; if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) goto efault; if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) goto efault; if (ts_addr && host_to_target_timespec(ts_addr, &ts)) goto efault; #endif #ifdef TARGET_NR_symlink case TARGET_NR_symlink: { void *p2; p = lock_user_string(arg1); p2 = lock_user_string(arg2); if (!p || !p2) ret = -TARGET_EFAULT; else ret = get_errno(symlink(p, p2)); unlock_user(p2, arg2, 0); unlock_user(p, arg1, 0); #endif #if defined(TARGET_NR_symlinkat) case TARGET_NR_symlinkat: { void *p2; p = lock_user_string(arg1); p2 = lock_user_string(arg3); if (!p || !p2) ret = -TARGET_EFAULT; else ret = get_errno(symlinkat(p, arg2, p2)); unlock_user(p2, arg3, 0); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_oldlstat case TARGET_NR_oldlstat: goto unimplemented; #endif #ifdef TARGET_NR_readlink case TARGET_NR_readlink: { void *p2; p = lock_user_string(arg1); p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); if (!p || !p2) { ret = -TARGET_EFAULT; } else if (!arg3) { /* Short circuit this for the magic exe check. */ } else if (is_proc_myself((const char *)p, "exe")) { char real[PATH_MAX], *temp; temp = realpath(exec_path, real); /* Return value is # of bytes that we wrote to the buffer. */ if (temp == NULL) { ret = get_errno(-1); } else { /* Don't worry about sign mismatch as earlier mapping * logic would have thrown a bad address error. */ ret = MIN(strlen(real), arg3); /* We cannot NUL terminate the string. */ memcpy(p2, real, ret); } else { ret = get_errno(readlink(path(p), p2, arg3)); unlock_user(p2, arg2, ret); unlock_user(p, arg1, 0); #endif #if defined(TARGET_NR_readlinkat) case TARGET_NR_readlinkat: { void *p2; p = lock_user_string(arg2); p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); if (!p || !p2) { ret = -TARGET_EFAULT; } else if (is_proc_myself((const char *)p, "exe")) { char real[PATH_MAX], *temp; temp = realpath(exec_path, real); ret = temp == NULL ? get_errno(-1) : strlen(real) ; snprintf((char *)p2, arg4, "%s", real); } else { ret = get_errno(readlinkat(arg1, path(p), p2, arg4)); unlock_user(p2, arg3, ret); unlock_user(p, arg2, 0); #endif #ifdef TARGET_NR_uselib case TARGET_NR_uselib: goto unimplemented; #endif #ifdef TARGET_NR_swapon case TARGET_NR_swapon: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(swapon(p, arg2)); unlock_user(p, arg1, 0); #endif case TARGET_NR_reboot: if (arg3 == LINUX_REBOOT_CMD_RESTART2) { /* arg4 must be ignored in all other cases */ p = lock_user_string(arg4); if (!p) { goto efault; ret = get_errno(reboot(arg1, arg2, arg3, p)); unlock_user(p, arg4, 0); } else { ret = get_errno(reboot(arg1, arg2, arg3, NULL)); #ifdef TARGET_NR_readdir case TARGET_NR_readdir: goto unimplemented; #endif #ifdef TARGET_NR_mmap case TARGET_NR_mmap: #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \ (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \ defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \ || defined(TARGET_S390X) { abi_ulong *v; abi_ulong v1, v2, v3, v4, v5, v6; if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) goto efault; v1 = tswapal(v[0]); v2 = tswapal(v[1]); v3 = tswapal(v[2]); v4 = tswapal(v[3]); v5 = tswapal(v[4]); v6 = tswapal(v[5]); unlock_user(v, arg1, 0); ret = get_errno(target_mmap(v1, v2, v3, target_to_host_bitmask(v4, mmap_flags_tbl), v5, v6)); #else ret = get_errno(target_mmap(arg1, arg2, arg3, target_to_host_bitmask(arg4, mmap_flags_tbl), arg5, arg6)); #endif #endif #ifdef TARGET_NR_mmap2 case TARGET_NR_mmap2: #ifndef MMAP_SHIFT #define MMAP_SHIFT 12 #endif ret = get_errno(target_mmap(arg1, arg2, arg3, target_to_host_bitmask(arg4, mmap_flags_tbl), arg5, arg6 << MMAP_SHIFT)); #endif case TARGET_NR_munmap: ret = get_errno(target_munmap(arg1, arg2)); case TARGET_NR_mprotect: { TaskState *ts = cpu->opaque; /* Special hack to detect libc making the stack executable. */ if ((arg3 & PROT_GROWSDOWN) && arg1 >= ts->info->stack_limit && arg1 <= ts->info->start_stack) { arg3 &= ~PROT_GROWSDOWN; arg2 = arg2 + arg1 - ts->info->stack_limit; arg1 = ts->info->stack_limit; ret = get_errno(target_mprotect(arg1, arg2, arg3)); #ifdef TARGET_NR_mremap case TARGET_NR_mremap: ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); #endif /* ??? msync/mlock/munlock are broken for softmmu. */ #ifdef TARGET_NR_msync case TARGET_NR_msync: ret = get_errno(msync(g2h(arg1), arg2, arg3)); #endif #ifdef TARGET_NR_mlock case TARGET_NR_mlock: ret = get_errno(mlock(g2h(arg1), arg2)); #endif #ifdef TARGET_NR_munlock case TARGET_NR_munlock: ret = get_errno(munlock(g2h(arg1), arg2)); #endif #ifdef TARGET_NR_mlockall case TARGET_NR_mlockall: ret = get_errno(mlockall(target_to_host_mlockall_arg(arg1))); #endif #ifdef TARGET_NR_munlockall case TARGET_NR_munlockall: ret = get_errno(munlockall()); #endif case TARGET_NR_truncate: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(truncate(p, arg2)); unlock_user(p, arg1, 0); case TARGET_NR_ftruncate: ret = get_errno(ftruncate(arg1, arg2)); case TARGET_NR_fchmod: ret = get_errno(fchmod(arg1, arg2)); #if defined(TARGET_NR_fchmodat) case TARGET_NR_fchmodat: if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(fchmodat(arg1, p, arg3, 0)); unlock_user(p, arg2, 0); #endif case TARGET_NR_getpriority: /* Note that negative values are valid for getpriority, so we must differentiate based on errno settings. */ errno = 0; ret = getpriority(arg1, arg2); if (ret == -1 && errno != 0) { ret = -host_to_target_errno(errno); #ifdef TARGET_ALPHA /* Return value is the unbiased priority. Signal no error. */ ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; #else /* Return value is a biased priority to avoid negative numbers. */ ret = 20 - ret; #endif case TARGET_NR_setpriority: ret = get_errno(setpriority(arg1, arg2, arg3)); #ifdef TARGET_NR_profil case TARGET_NR_profil: goto unimplemented; #endif case TARGET_NR_statfs: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(statfs(path(p), &stfs)); unlock_user(p, arg1, 0); convert_statfs: if (!is_error(ret)) { struct target_statfs *target_stfs; if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) goto efault; __put_user(stfs.f_type, &target_stfs->f_type); __put_user(stfs.f_bsize, &target_stfs->f_bsize); __put_user(stfs.f_blocks, &target_stfs->f_blocks); __put_user(stfs.f_bfree, &target_stfs->f_bfree); __put_user(stfs.f_bavail, &target_stfs->f_bavail); __put_user(stfs.f_files, &target_stfs->f_files); __put_user(stfs.f_ffree, &target_stfs->f_ffree); __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); __put_user(stfs.f_namelen, &target_stfs->f_namelen); __put_user(stfs.f_frsize, &target_stfs->f_frsize); memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); unlock_user_struct(target_stfs, arg2, 1); case TARGET_NR_fstatfs: ret = get_errno(fstatfs(arg1, &stfs)); goto convert_statfs; #ifdef TARGET_NR_statfs64 case TARGET_NR_statfs64: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(statfs(path(p), &stfs)); unlock_user(p, arg1, 0); convert_statfs64: if (!is_error(ret)) { struct target_statfs64 *target_stfs; if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) goto efault; __put_user(stfs.f_type, &target_stfs->f_type); __put_user(stfs.f_bsize, &target_stfs->f_bsize); __put_user(stfs.f_blocks, &target_stfs->f_blocks); __put_user(stfs.f_bfree, &target_stfs->f_bfree); __put_user(stfs.f_bavail, &target_stfs->f_bavail); __put_user(stfs.f_files, &target_stfs->f_files); __put_user(stfs.f_ffree, &target_stfs->f_ffree); __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); __put_user(stfs.f_namelen, &target_stfs->f_namelen); __put_user(stfs.f_frsize, &target_stfs->f_frsize); memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); unlock_user_struct(target_stfs, arg3, 1); case TARGET_NR_fstatfs64: ret = get_errno(fstatfs(arg1, &stfs)); goto convert_statfs64; #endif #ifdef TARGET_NR_ioperm case TARGET_NR_ioperm: goto unimplemented; #endif #ifdef TARGET_NR_socketcall case TARGET_NR_socketcall: ret = do_socketcall(arg1, arg2); #endif #ifdef TARGET_NR_accept case TARGET_NR_accept: ret = do_accept4(arg1, arg2, arg3, 0); #endif #ifdef TARGET_NR_accept4 case TARGET_NR_accept4: ret = do_accept4(arg1, arg2, arg3, arg4); #endif #ifdef TARGET_NR_bind case TARGET_NR_bind: ret = do_bind(arg1, arg2, arg3); #endif #ifdef TARGET_NR_connect case TARGET_NR_connect: ret = do_connect(arg1, arg2, arg3); #endif #ifdef TARGET_NR_getpeername case TARGET_NR_getpeername: ret = do_getpeername(arg1, arg2, arg3); #endif #ifdef TARGET_NR_getsockname case TARGET_NR_getsockname: ret = do_getsockname(arg1, arg2, arg3); #endif #ifdef TARGET_NR_getsockopt case TARGET_NR_getsockopt: ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); #endif #ifdef TARGET_NR_listen case TARGET_NR_listen: ret = get_errno(listen(arg1, arg2)); #endif #ifdef TARGET_NR_recv case TARGET_NR_recv: ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); #endif #ifdef TARGET_NR_recvfrom case TARGET_NR_recvfrom: ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); #endif #ifdef TARGET_NR_recvmsg case TARGET_NR_recvmsg: ret = do_sendrecvmsg(arg1, arg2, arg3, 0); #endif #ifdef TARGET_NR_send case TARGET_NR_send: ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); #endif #ifdef TARGET_NR_sendmsg case TARGET_NR_sendmsg: ret = do_sendrecvmsg(arg1, arg2, arg3, 1); #endif #ifdef TARGET_NR_sendmmsg case TARGET_NR_sendmmsg: ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1); case TARGET_NR_recvmmsg: ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0); #endif #ifdef TARGET_NR_sendto case TARGET_NR_sendto: ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); #endif #ifdef TARGET_NR_shutdown case TARGET_NR_shutdown: ret = get_errno(shutdown(arg1, arg2)); #endif #if defined(TARGET_NR_getrandom) && defined(__NR_getrandom) case TARGET_NR_getrandom: p = lock_user(VERIFY_WRITE, arg1, arg2, 0); if (!p) { goto efault; ret = get_errno(getrandom(p, arg2, arg3)); unlock_user(p, arg1, ret); #endif #ifdef TARGET_NR_socket case TARGET_NR_socket: ret = do_socket(arg1, arg2, arg3); fd_trans_unregister(ret); #endif #ifdef TARGET_NR_socketpair case TARGET_NR_socketpair: ret = do_socketpair(arg1, arg2, arg3, arg4); #endif #ifdef TARGET_NR_setsockopt case TARGET_NR_setsockopt: ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); #endif case TARGET_NR_syslog: if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); unlock_user(p, arg2, 0); case TARGET_NR_setitimer: { struct itimerval value, ovalue, *pvalue; if (arg2) { pvalue = &value; if (copy_from_user_timeval(&pvalue->it_interval, arg2) || copy_from_user_timeval(&pvalue->it_value, arg2 + sizeof(struct target_timeval))) goto efault; } else { pvalue = NULL; ret = get_errno(setitimer(arg1, pvalue, &ovalue)); if (!is_error(ret) && arg3) { if (copy_to_user_timeval(arg3, &ovalue.it_interval) || copy_to_user_timeval(arg3 + sizeof(struct target_timeval), &ovalue.it_value)) goto efault; case TARGET_NR_getitimer: { struct itimerval value; ret = get_errno(getitimer(arg1, &value)); if (!is_error(ret) && arg2) { if (copy_to_user_timeval(arg2, &value.it_interval) || copy_to_user_timeval(arg2 + sizeof(struct target_timeval), &value.it_value)) goto efault; #ifdef TARGET_NR_stat case TARGET_NR_stat: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(stat(path(p), &st)); unlock_user(p, arg1, 0); goto do_stat; #endif #ifdef TARGET_NR_lstat case TARGET_NR_lstat: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(lstat(path(p), &st)); unlock_user(p, arg1, 0); goto do_stat; #endif case TARGET_NR_fstat: { ret = get_errno(fstat(arg1, &st)); #if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat) do_stat: #endif if (!is_error(ret)) { struct target_stat *target_st; if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) goto efault; memset(target_st, 0, sizeof(*target_st)); __put_user(st.st_dev, &target_st->st_dev); __put_user(st.st_ino, &target_st->st_ino); __put_user(st.st_mode, &target_st->st_mode); __put_user(st.st_uid, &target_st->st_uid); __put_user(st.st_gid, &target_st->st_gid); __put_user(st.st_nlink, &target_st->st_nlink); __put_user(st.st_rdev, &target_st->st_rdev); __put_user(st.st_size, &target_st->st_size); __put_user(st.st_blksize, &target_st->st_blksize); __put_user(st.st_blocks, &target_st->st_blocks); __put_user(st.st_atime, &target_st->target_st_atime); __put_user(st.st_mtime, &target_st->target_st_mtime); __put_user(st.st_ctime, &target_st->target_st_ctime); unlock_user_struct(target_st, arg2, 1); #ifdef TARGET_NR_olduname case TARGET_NR_olduname: goto unimplemented; #endif #ifdef TARGET_NR_iopl case TARGET_NR_iopl: goto unimplemented; #endif case TARGET_NR_vhangup: ret = get_errno(vhangup()); #ifdef TARGET_NR_idle case TARGET_NR_idle: goto unimplemented; #endif #ifdef TARGET_NR_syscall case TARGET_NR_syscall: ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5, arg6, arg7, arg8, 0); #endif case TARGET_NR_wait4: { int status; abi_long status_ptr = arg2; struct rusage rusage, *rusage_ptr; abi_ulong target_rusage = arg4; abi_long rusage_err; if (target_rusage) rusage_ptr = &rusage; else rusage_ptr = NULL; ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr)); if (!is_error(ret)) { if (status_ptr && ret) { status = host_to_target_waitstatus(status); if (put_user_s32(status, status_ptr)) goto efault; if (target_rusage) { rusage_err = host_to_target_rusage(target_rusage, &rusage); if (rusage_err) { ret = rusage_err; #ifdef TARGET_NR_swapoff case TARGET_NR_swapoff: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(swapoff(p)); unlock_user(p, arg1, 0); #endif case TARGET_NR_sysinfo: { struct target_sysinfo *target_value; struct sysinfo value; ret = get_errno(sysinfo(&value)); if (!is_error(ret) && arg1) { if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) goto efault; __put_user(value.uptime, &target_value->uptime); __put_user(value.loads[0], &target_value->loads[0]); __put_user(value.loads[1], &target_value->loads[1]); __put_user(value.loads[2], &target_value->loads[2]); __put_user(value.totalram, &target_value->totalram); __put_user(value.freeram, &target_value->freeram); __put_user(value.sharedram, &target_value->sharedram); __put_user(value.bufferram, &target_value->bufferram); __put_user(value.totalswap, &target_value->totalswap); __put_user(value.freeswap, &target_value->freeswap); __put_user(value.procs, &target_value->procs); __put_user(value.totalhigh, &target_value->totalhigh); __put_user(value.freehigh, &target_value->freehigh); __put_user(value.mem_unit, &target_value->mem_unit); unlock_user_struct(target_value, arg1, 1); #ifdef TARGET_NR_ipc case TARGET_NR_ipc: ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); #endif #ifdef TARGET_NR_semget case TARGET_NR_semget: ret = get_errno(semget(arg1, arg2, arg3)); #endif #ifdef TARGET_NR_semop case TARGET_NR_semop: ret = do_semop(arg1, arg2, arg3); #endif #ifdef TARGET_NR_semctl case TARGET_NR_semctl: ret = do_semctl(arg1, arg2, arg3, arg4); #endif #ifdef TARGET_NR_msgctl case TARGET_NR_msgctl: ret = do_msgctl(arg1, arg2, arg3); #endif #ifdef TARGET_NR_msgget case TARGET_NR_msgget: ret = get_errno(msgget(arg1, arg2)); #endif #ifdef TARGET_NR_msgrcv case TARGET_NR_msgrcv: ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5); #endif #ifdef TARGET_NR_msgsnd case TARGET_NR_msgsnd: ret = do_msgsnd(arg1, arg2, arg3, arg4); #endif #ifdef TARGET_NR_shmget case TARGET_NR_shmget: ret = get_errno(shmget(arg1, arg2, arg3)); #endif #ifdef TARGET_NR_shmctl case TARGET_NR_shmctl: ret = do_shmctl(arg1, arg2, arg3); #endif #ifdef TARGET_NR_shmat case TARGET_NR_shmat: ret = do_shmat(arg1, arg2, arg3); #endif #ifdef TARGET_NR_shmdt case TARGET_NR_shmdt: ret = do_shmdt(arg1); #endif case TARGET_NR_fsync: ret = get_errno(fsync(arg1)); case TARGET_NR_clone: /* Linux manages to have three different orderings for its * arguments to clone(); the BACKWARDS and BACKWARDS2 defines * match the kernel's CONFIG_CLONE_* settings. * Microblaze is further special in that it uses a sixth * implicit argument to clone for the TLS pointer. */ #if defined(TARGET_MICROBLAZE) ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5)); #elif defined(TARGET_CLONE_BACKWARDS) ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5)); #elif defined(TARGET_CLONE_BACKWARDS2) ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4)); #else ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4)); #endif #ifdef __NR_exit_group /* new thread calls */ case TARGET_NR_exit_group: #ifdef TARGET_GPROF _mcleanup(); #endif gdb_exit(cpu_env, arg1); ret = get_errno(exit_group(arg1)); #endif case TARGET_NR_setdomainname: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(setdomainname(p, arg2)); unlock_user(p, arg1, 0); case TARGET_NR_uname: /* no need to transcode because we use the linux syscall */ { struct new_utsname * buf; if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) goto efault; ret = get_errno(sys_uname(buf)); if (!is_error(ret)) { /* Overwrite the native machine name with whatever is being emulated. */ strcpy (buf->machine, cpu_to_uname_machine(cpu_env)); /* Allow the user to override the reported release. */ if (qemu_uname_release && *qemu_uname_release) { g_strlcpy(buf->release, qemu_uname_release, sizeof(buf->release)); unlock_user_struct(buf, arg1, 1); #ifdef TARGET_I386 case TARGET_NR_modify_ldt: ret = do_modify_ldt(cpu_env, arg1, arg2, arg3); #if !defined(TARGET_X86_64) case TARGET_NR_vm86old: goto unimplemented; case TARGET_NR_vm86: ret = do_vm86(cpu_env, arg1, arg2); #endif #endif case TARGET_NR_adjtimex: goto unimplemented; #ifdef TARGET_NR_create_module case TARGET_NR_create_module: #endif case TARGET_NR_init_module: case TARGET_NR_delete_module: #ifdef TARGET_NR_get_kernel_syms case TARGET_NR_get_kernel_syms: #endif goto unimplemented; case TARGET_NR_quotactl: goto unimplemented; case TARGET_NR_getpgid: ret = get_errno(getpgid(arg1)); case TARGET_NR_fchdir: ret = get_errno(fchdir(arg1)); #ifdef TARGET_NR_bdflush /* not on x86_64 */ case TARGET_NR_bdflush: goto unimplemented; #endif #ifdef TARGET_NR_sysfs case TARGET_NR_sysfs: goto unimplemented; #endif case TARGET_NR_personality: ret = get_errno(personality(arg1)); #ifdef TARGET_NR_afs_syscall case TARGET_NR_afs_syscall: goto unimplemented; #endif #ifdef TARGET_NR__llseek /* Not on alpha */ case TARGET_NR__llseek: { int64_t res; #if !defined(__NR_llseek) res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5); if (res == -1) { ret = get_errno(res); } else { ret = 0; #else ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); #endif if ((ret == 0) && put_user_s64(res, arg4)) { goto efault; #endif #ifdef TARGET_NR_getdents case TARGET_NR_getdents: #ifdef __NR_getdents #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 { struct target_dirent *target_dirp; struct linux_dirent *dirp; abi_long count = arg3; dirp = g_try_malloc(count); if (!dirp) { ret = -TARGET_ENOMEM; goto fail; ret = get_errno(sys_getdents(arg1, dirp, count)); if (!is_error(ret)) { struct linux_dirent *de; struct target_dirent *tde; int len = ret; int reclen, treclen; int count1, tnamelen; count1 = 0; de = dirp; if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) goto efault; tde = target_dirp; while (len > 0) { reclen = de->d_reclen; tnamelen = reclen - offsetof(struct linux_dirent, d_name); assert(tnamelen >= 0); treclen = tnamelen + offsetof(struct target_dirent, d_name); assert(count1 + treclen <= count); tde->d_reclen = tswap16(treclen); tde->d_ino = tswapal(de->d_ino); tde->d_off = tswapal(de->d_off); memcpy(tde->d_name, de->d_name, tnamelen); de = (struct linux_dirent *)((char *)de + reclen); len -= reclen; tde = (struct target_dirent *)((char *)tde + treclen); count1 += treclen; ret = count1; unlock_user(target_dirp, arg2, ret); g_free(dirp); #else { struct linux_dirent *dirp; abi_long count = arg3; if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) goto efault; ret = get_errno(sys_getdents(arg1, dirp, count)); if (!is_error(ret)) { struct linux_dirent *de; int len = ret; int reclen; de = dirp; while (len > 0) { reclen = de->d_reclen; if (reclen > len) de->d_reclen = tswap16(reclen); tswapls(&de->d_ino); tswapls(&de->d_off); de = (struct linux_dirent *)((char *)de + reclen); len -= reclen; unlock_user(dirp, arg2, ret); #endif #else /* Implement getdents in terms of getdents64 */ { struct linux_dirent64 *dirp; abi_long count = arg3; dirp = lock_user(VERIFY_WRITE, arg2, count, 0); if (!dirp) { goto efault; ret = get_errno(sys_getdents64(arg1, dirp, count)); if (!is_error(ret)) { /* Convert the dirent64 structs to target dirent. We do this * in-place, since we can guarantee that a target_dirent is no * larger than a dirent64; however this means we have to be * careful to read everything before writing in the new format. */ struct linux_dirent64 *de; struct target_dirent *tde; int len = ret; int tlen = 0; de = dirp; tde = (struct target_dirent *)dirp; while (len > 0) { int namelen, treclen; int reclen = de->d_reclen; uint64_t ino = de->d_ino; int64_t off = de->d_off; uint8_t type = de->d_type; namelen = strlen(de->d_name); treclen = offsetof(struct target_dirent, d_name) + namelen + 2; treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long)); memmove(tde->d_name, de->d_name, namelen + 1); tde->d_ino = tswapal(ino); tde->d_off = tswapal(off); tde->d_reclen = tswap16(treclen); /* The target_dirent type is in what was formerly a padding * byte at the end of the structure: */ *(((char *)tde) + treclen - 1) = type; de = (struct linux_dirent64 *)((char *)de + reclen); tde = (struct target_dirent *)((char *)tde + treclen); len -= reclen; tlen += treclen; ret = tlen; unlock_user(dirp, arg2, ret); #endif #endif /* TARGET_NR_getdents */ #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) case TARGET_NR_getdents64: { struct linux_dirent64 *dirp; abi_long count = arg3; if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) goto efault; ret = get_errno(sys_getdents64(arg1, dirp, count)); if (!is_error(ret)) { struct linux_dirent64 *de; int len = ret; int reclen; de = dirp; while (len > 0) { reclen = de->d_reclen; if (reclen > len) de->d_reclen = tswap16(reclen); tswap64s((uint64_t *)&de->d_ino); tswap64s((uint64_t *)&de->d_off); de = (struct linux_dirent64 *)((char *)de + reclen); len -= reclen; unlock_user(dirp, arg2, ret); #endif /* TARGET_NR_getdents64 */ #if defined(TARGET_NR__newselect) case TARGET_NR__newselect: ret = do_select(arg1, arg2, arg3, arg4, arg5); #endif #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll) # ifdef TARGET_NR_poll case TARGET_NR_poll: # endif # ifdef TARGET_NR_ppoll case TARGET_NR_ppoll: # endif { struct target_pollfd *target_pfd; unsigned int nfds = arg2; struct pollfd *pfd; unsigned int i; pfd = NULL; target_pfd = NULL; if (nfds) { target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1); if (!target_pfd) { goto efault; pfd = alloca(sizeof(struct pollfd) * nfds); for (i = 0; i < nfds; i++) { pfd[i].fd = tswap32(target_pfd[i].fd); pfd[i].events = tswap16(target_pfd[i].events); switch (num) { # ifdef TARGET_NR_ppoll case TARGET_NR_ppoll: { struct timespec _timeout_ts, *timeout_ts = &_timeout_ts; target_sigset_t *target_set; sigset_t _set, *set = &_set; if (arg3) { if (target_to_host_timespec(timeout_ts, arg3)) { unlock_user(target_pfd, arg1, 0); goto efault; } else { timeout_ts = NULL; if (arg4) { if (arg5 != sizeof(target_sigset_t)) { unlock_user(target_pfd, arg1, 0); target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1); if (!target_set) { unlock_user(target_pfd, arg1, 0); goto efault; target_to_host_sigset(set, target_set); } else { set = NULL; ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts, set, SIGSET_T_SIZE)); if (!is_error(ret) && arg3) { host_to_target_timespec(arg3, timeout_ts); if (arg4) { unlock_user(target_set, arg4, 0); # endif # ifdef TARGET_NR_poll case TARGET_NR_poll: { struct timespec ts, *pts; if (arg3 >= 0) { /* Convert ms to secs, ns */ ts.tv_sec = arg3 / 1000; ts.tv_nsec = (arg3 % 1000) * 1000000LL; pts = &ts; } else { /* -ve poll() timeout means "infinite" */ pts = NULL; ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0)); # endif default: g_assert_not_reached(); if (!is_error(ret)) { for(i = 0; i < nfds; i++) { target_pfd[i].revents = tswap16(pfd[i].revents); unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds); #endif case TARGET_NR_flock: /* NOTE: the flock constant seems to be the same for every Linux platform */ ret = get_errno(safe_flock(arg1, arg2)); case TARGET_NR_readv: { struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0); if (vec != NULL) { ret = get_errno(safe_readv(arg1, vec, arg3)); unlock_iovec(vec, arg2, arg3, 1); } else { ret = -host_to_target_errno(errno); case TARGET_NR_writev: { struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); if (vec != NULL) { ret = get_errno(safe_writev(arg1, vec, arg3)); unlock_iovec(vec, arg2, arg3, 0); } else { ret = -host_to_target_errno(errno); case TARGET_NR_getsid: ret = get_errno(getsid(arg1)); #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ case TARGET_NR_fdatasync: ret = get_errno(fdatasync(arg1)); #endif #ifdef TARGET_NR__sysctl case TARGET_NR__sysctl: /* We don't implement this, but ENOTDIR is always a safe return value. */ ret = -TARGET_ENOTDIR; #endif case TARGET_NR_sched_getaffinity: { unsigned int mask_size; unsigned long *mask; /* * sched_getaffinity needs multiples of ulong, so need to take * care of mismatches between target ulong and host ulong sizes. */ if (arg2 & (sizeof(abi_ulong) - 1)) { mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); mask = alloca(mask_size); ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask)); if (!is_error(ret)) { if (ret > arg2) { /* More data returned than the caller's buffer will fit. * This only happens if sizeof(abi_long) < sizeof(long) * and the caller passed us a buffer holding an odd number * of abi_longs. If the host kernel is actually using the * extra 4 bytes then fail EINVAL; otherwise we can just * ignore them and only copy the interesting part. */ int numcpus = sysconf(_SC_NPROCESSORS_CONF); if (numcpus > arg2 * 8) { ret = arg2; if (copy_to_user(arg3, mask, ret)) { goto efault; case TARGET_NR_sched_setaffinity: { unsigned int mask_size; unsigned long *mask; /* * sched_setaffinity needs multiples of ulong, so need to take * care of mismatches between target ulong and host ulong sizes. */ if (arg2 & (sizeof(abi_ulong) - 1)) { mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); mask = alloca(mask_size); if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) { goto efault; memcpy(mask, p, arg2); unlock_user_struct(p, arg2, 0); ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask)); case TARGET_NR_sched_setparam: { struct sched_param *target_schp; struct sched_param schp; if (arg2 == 0) { return -TARGET_EINVAL; if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) goto efault; schp.sched_priority = tswap32(target_schp->sched_priority); unlock_user_struct(target_schp, arg2, 0); ret = get_errno(sched_setparam(arg1, &schp)); case TARGET_NR_sched_getparam: { struct sched_param *target_schp; struct sched_param schp; if (arg2 == 0) { return -TARGET_EINVAL; ret = get_errno(sched_getparam(arg1, &schp)); if (!is_error(ret)) { if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) goto efault; target_schp->sched_priority = tswap32(schp.sched_priority); unlock_user_struct(target_schp, arg2, 1); case TARGET_NR_sched_setscheduler: { struct sched_param *target_schp; struct sched_param schp; if (arg3 == 0) { return -TARGET_EINVAL; if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) goto efault; schp.sched_priority = tswap32(target_schp->sched_priority); unlock_user_struct(target_schp, arg3, 0); ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); case TARGET_NR_sched_getscheduler: ret = get_errno(sched_getscheduler(arg1)); case TARGET_NR_sched_yield: ret = get_errno(sched_yield()); case TARGET_NR_sched_get_priority_max: ret = get_errno(sched_get_priority_max(arg1)); case TARGET_NR_sched_get_priority_min: ret = get_errno(sched_get_priority_min(arg1)); case TARGET_NR_sched_rr_get_interval: { struct timespec ts; ret = get_errno(sched_rr_get_interval(arg1, &ts)); if (!is_error(ret)) { ret = host_to_target_timespec(arg2, &ts); case TARGET_NR_nanosleep: { struct timespec req, rem; target_to_host_timespec(&req, arg1); ret = get_errno(safe_nanosleep(&req, &rem)); if (is_error(ret) && arg2) { host_to_target_timespec(arg2, &rem); #ifdef TARGET_NR_query_module case TARGET_NR_query_module: goto unimplemented; #endif #ifdef TARGET_NR_nfsservctl case TARGET_NR_nfsservctl: goto unimplemented; #endif case TARGET_NR_prctl: switch (arg1) { case PR_GET_PDEATHSIG: { int deathsig; ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); if (!is_error(ret) && arg2 && put_user_ual(deathsig, arg2)) { goto efault; #ifdef PR_GET_NAME case PR_GET_NAME: { void *name = lock_user(VERIFY_WRITE, arg2, 16, 1); if (!name) { goto efault; ret = get_errno(prctl(arg1, (unsigned long)name, arg3, arg4, arg5)); unlock_user(name, arg2, 16); case PR_SET_NAME: { void *name = lock_user(VERIFY_READ, arg2, 16, 1); if (!name) { goto efault; ret = get_errno(prctl(arg1, (unsigned long)name, arg3, arg4, arg5)); unlock_user(name, arg2, 0); #endif default: /* Most prctl options have no pointer arguments */ ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); #ifdef TARGET_NR_arch_prctl case TARGET_NR_arch_prctl: #if defined(TARGET_I386) && !defined(TARGET_ABI32) ret = do_arch_prctl(cpu_env, arg1, arg2); #else goto unimplemented; #endif #endif #ifdef TARGET_NR_pread64 case TARGET_NR_pread64: if (regpairs_aligned(cpu_env)) { arg4 = arg5; arg5 = arg6; if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) goto efault; ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); unlock_user(p, arg2, ret); case TARGET_NR_pwrite64: if (regpairs_aligned(cpu_env)) { arg4 = arg5; arg5 = arg6; if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) goto efault; ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5))); unlock_user(p, arg2, 0); #endif case TARGET_NR_getcwd: if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) goto efault; ret = get_errno(sys_getcwd1(p, arg2)); unlock_user(p, arg1, ret); case TARGET_NR_capget: case TARGET_NR_capset: { struct target_user_cap_header *target_header; struct target_user_cap_data *target_data = NULL; struct __user_cap_header_struct header; struct __user_cap_data_struct data[2]; struct __user_cap_data_struct *dataptr = NULL; int i, target_datalen; int data_items = 1; if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) { goto efault; header.version = tswap32(target_header->version); header.pid = tswap32(target_header->pid); if (header.version != _LINUX_CAPABILITY_VERSION) { /* Version 2 and up takes pointer to two user_data structs */ data_items = 2; target_datalen = sizeof(*target_data) * data_items; if (arg2) { if (num == TARGET_NR_capget) { target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0); } else { target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1); if (!target_data) { unlock_user_struct(target_header, arg1, 0); goto efault; if (num == TARGET_NR_capset) { for (i = 0; i < data_items; i++) { data[i].effective = tswap32(target_data[i].effective); data[i].permitted = tswap32(target_data[i].permitted); data[i].inheritable = tswap32(target_data[i].inheritable); dataptr = data; if (num == TARGET_NR_capget) { ret = get_errno(capget(&header, dataptr)); } else { ret = get_errno(capset(&header, dataptr)); /* The kernel always updates version for both capget and capset */ target_header->version = tswap32(header.version); unlock_user_struct(target_header, arg1, 1); if (arg2) { if (num == TARGET_NR_capget) { for (i = 0; i < data_items; i++) { target_data[i].effective = tswap32(data[i].effective); target_data[i].permitted = tswap32(data[i].permitted); target_data[i].inheritable = tswap32(data[i].inheritable); unlock_user(target_data, arg2, target_datalen); } else { unlock_user(target_data, arg2, 0); case TARGET_NR_sigaltstack: ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env)); #ifdef CONFIG_SENDFILE case TARGET_NR_sendfile: { off_t *offp = NULL; off_t off; if (arg3) { ret = get_user_sal(off, arg3); if (is_error(ret)) { offp = &off; ret = get_errno(sendfile(arg1, arg2, offp, arg4)); if (!is_error(ret) && arg3) { abi_long ret2 = put_user_sal(off, arg3); if (is_error(ret2)) { ret = ret2; #ifdef TARGET_NR_sendfile64 case TARGET_NR_sendfile64: { off_t *offp = NULL; off_t off; if (arg3) { ret = get_user_s64(off, arg3); if (is_error(ret)) { offp = &off; ret = get_errno(sendfile(arg1, arg2, offp, arg4)); if (!is_error(ret) && arg3) { abi_long ret2 = put_user_s64(off, arg3); if (is_error(ret2)) { ret = ret2; #endif #else case TARGET_NR_sendfile: #ifdef TARGET_NR_sendfile64 case TARGET_NR_sendfile64: #endif goto unimplemented; #endif #ifdef TARGET_NR_getpmsg case TARGET_NR_getpmsg: goto unimplemented; #endif #ifdef TARGET_NR_putpmsg case TARGET_NR_putpmsg: goto unimplemented; #endif #ifdef TARGET_NR_vfork case TARGET_NR_vfork: ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0, 0, 0, 0)); #endif #ifdef TARGET_NR_ugetrlimit case TARGET_NR_ugetrlimit: { struct rlimit rlim; int resource = target_to_host_resource(arg1); ret = get_errno(getrlimit(resource, &rlim)); if (!is_error(ret)) { struct target_rlimit *target_rlim; if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) goto efault; target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); unlock_user_struct(target_rlim, arg2, 1); #endif #ifdef TARGET_NR_truncate64 case TARGET_NR_truncate64: if (!(p = lock_user_string(arg1))) goto efault; ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_ftruncate64 case TARGET_NR_ftruncate64: ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); #endif #ifdef TARGET_NR_stat64 case TARGET_NR_stat64: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(stat(path(p), &st)); unlock_user(p, arg1, 0); if (!is_error(ret)) ret = host_to_target_stat64(cpu_env, arg2, &st); #endif #ifdef TARGET_NR_lstat64 case TARGET_NR_lstat64: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(lstat(path(p), &st)); unlock_user(p, arg1, 0); if (!is_error(ret)) ret = host_to_target_stat64(cpu_env, arg2, &st); #endif #ifdef TARGET_NR_fstat64 case TARGET_NR_fstat64: ret = get_errno(fstat(arg1, &st)); if (!is_error(ret)) ret = host_to_target_stat64(cpu_env, arg2, &st); #endif #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) #ifdef TARGET_NR_fstatat64 case TARGET_NR_fstatat64: #endif #ifdef TARGET_NR_newfstatat case TARGET_NR_newfstatat: #endif if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(fstatat(arg1, path(p), &st, arg4)); if (!is_error(ret)) ret = host_to_target_stat64(cpu_env, arg3, &st); #endif #ifdef TARGET_NR_lchown case TARGET_NR_lchown: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_getuid case TARGET_NR_getuid: ret = get_errno(high2lowuid(getuid())); #endif #ifdef TARGET_NR_getgid case TARGET_NR_getgid: ret = get_errno(high2lowgid(getgid())); #endif #ifdef TARGET_NR_geteuid case TARGET_NR_geteuid: ret = get_errno(high2lowuid(geteuid())); #endif #ifdef TARGET_NR_getegid case TARGET_NR_getegid: ret = get_errno(high2lowgid(getegid())); #endif case TARGET_NR_setreuid: ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); case TARGET_NR_setregid: ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); case TARGET_NR_getgroups: { int gidsetsize = arg1; target_id *target_grouplist; gid_t *grouplist; int i; grouplist = alloca(gidsetsize * sizeof(gid_t)); ret = get_errno(getgroups(gidsetsize, grouplist)); if (gidsetsize == 0) if (!is_error(ret)) { target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0); if (!target_grouplist) goto efault; for(i = 0;i < ret; i++) target_grouplist[i] = tswapid(high2lowgid(grouplist[i])); unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id)); case TARGET_NR_setgroups: { int gidsetsize = arg1; target_id *target_grouplist; gid_t *grouplist = NULL; int i; if (gidsetsize) { grouplist = alloca(gidsetsize * sizeof(gid_t)); target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1); if (!target_grouplist) { ret = -TARGET_EFAULT; goto fail; for (i = 0; i < gidsetsize; i++) { grouplist[i] = low2highgid(tswapid(target_grouplist[i])); unlock_user(target_grouplist, arg2, 0); ret = get_errno(setgroups(gidsetsize, grouplist)); case TARGET_NR_fchown: ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); #if defined(TARGET_NR_fchownat) case TARGET_NR_fchownat: if (!(p = lock_user_string(arg2))) goto efault; ret = get_errno(fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); unlock_user(p, arg2, 0); #endif #ifdef TARGET_NR_setresuid case TARGET_NR_setresuid: ret = get_errno(sys_setresuid(low2highuid(arg1), low2highuid(arg2), low2highuid(arg3))); #endif #ifdef TARGET_NR_getresuid case TARGET_NR_getresuid: { uid_t ruid, euid, suid; ret = get_errno(getresuid(&ruid, &euid, &suid)); if (!is_error(ret)) { if (put_user_id(high2lowuid(ruid), arg1) || put_user_id(high2lowuid(euid), arg2) || put_user_id(high2lowuid(suid), arg3)) goto efault; #endif #ifdef TARGET_NR_getresgid case TARGET_NR_setresgid: ret = get_errno(sys_setresgid(low2highgid(arg1), low2highgid(arg2), low2highgid(arg3))); #endif #ifdef TARGET_NR_getresgid case TARGET_NR_getresgid: { gid_t rgid, egid, sgid; ret = get_errno(getresgid(&rgid, &egid, &sgid)); if (!is_error(ret)) { if (put_user_id(high2lowgid(rgid), arg1) || put_user_id(high2lowgid(egid), arg2) || put_user_id(high2lowgid(sgid), arg3)) goto efault; #endif #ifdef TARGET_NR_chown case TARGET_NR_chown: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); unlock_user(p, arg1, 0); #endif case TARGET_NR_setuid: ret = get_errno(sys_setuid(low2highuid(arg1))); case TARGET_NR_setgid: ret = get_errno(sys_setgid(low2highgid(arg1))); case TARGET_NR_setfsuid: ret = get_errno(setfsuid(arg1)); case TARGET_NR_setfsgid: ret = get_errno(setfsgid(arg1)); #ifdef TARGET_NR_lchown32 case TARGET_NR_lchown32: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(lchown(p, arg2, arg3)); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_getuid32 case TARGET_NR_getuid32: ret = get_errno(getuid()); #endif #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA) /* Alpha specific */ case TARGET_NR_getxuid: { uid_t euid; euid=geteuid(); ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid; ret = get_errno(getuid()); #endif #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA) /* Alpha specific */ case TARGET_NR_getxgid: { uid_t egid; egid=getegid(); ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid; ret = get_errno(getgid()); #endif #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA) /* Alpha specific */ case TARGET_NR_osf_getsysinfo: ret = -TARGET_EOPNOTSUPP; switch (arg1) { case TARGET_GSI_IEEE_FP_CONTROL: { uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env); /* Copied from linux ieee_fpcr_to_swcr. */ swcr = (fpcr >> 35) & SWCR_STATUS_MASK; swcr |= (fpcr >> 36) & SWCR_MAP_DMZ; swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV | SWCR_TRAP_ENABLE_DZE | SWCR_TRAP_ENABLE_OVF); swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF | SWCR_TRAP_ENABLE_INE); swcr |= (fpcr >> 47) & SWCR_MAP_UMZ; swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO; if (put_user_u64 (swcr, arg2)) goto efault; ret = 0; /* case GSI_IEEE_STATE_AT_SIGNAL: -- Not implemented in linux kernel. case GSI_UACPROC: -- Retrieves current unaligned access state; not much used. case GSI_PROC_TYPE: -- Retrieves implver information; surely not used. case GSI_GET_HWRPB: -- Grabs a copy of the HWRPB; surely not used. */ #endif #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA) /* Alpha specific */ case TARGET_NR_osf_setsysinfo: ret = -TARGET_EOPNOTSUPP; switch (arg1) { case TARGET_SSI_IEEE_FP_CONTROL: { uint64_t swcr, fpcr, orig_fpcr; if (get_user_u64 (swcr, arg2)) { goto efault; orig_fpcr = cpu_alpha_load_fpcr(cpu_env); fpcr = orig_fpcr & FPCR_DYN_MASK; /* Copied from linux ieee_swcr_to_fpcr. */ fpcr |= (swcr & SWCR_STATUS_MASK) << 35; fpcr |= (swcr & SWCR_MAP_DMZ) << 36; fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV | SWCR_TRAP_ENABLE_DZE | SWCR_TRAP_ENABLE_OVF)) << 48; fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF | SWCR_TRAP_ENABLE_INE)) << 57; fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0); fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41; cpu_alpha_store_fpcr(cpu_env, fpcr); ret = 0; case TARGET_SSI_IEEE_RAISE_EXCEPTION: { uint64_t exc, fpcr, orig_fpcr; int si_code; if (get_user_u64(exc, arg2)) { goto efault; orig_fpcr = cpu_alpha_load_fpcr(cpu_env); /* We only add to the exception status here. */ fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35); cpu_alpha_store_fpcr(cpu_env, fpcr); ret = 0; /* Old exceptions are not signaled. */ fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK); /* If any exceptions set by this call, and are unmasked, send a signal. */ si_code = 0; if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) { si_code = TARGET_FPE_FLTRES; if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) { si_code = TARGET_FPE_FLTUND; if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) { si_code = TARGET_FPE_FLTOVF; if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) { si_code = TARGET_FPE_FLTDIV; if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) { si_code = TARGET_FPE_FLTINV; if (si_code != 0) { target_siginfo_t info; info.si_signo = SIGFPE; info.si_errno = 0; info.si_code = si_code; info._sifields._sigfault._addr = ((CPUArchState *)cpu_env)->pc; queue_signal((CPUArchState *)cpu_env, info.si_signo, &info); /* case SSI_NVPAIRS: -- Used with SSIN_UACPROC to enable unaligned accesses. case SSI_IEEE_STATE_AT_SIGNAL: case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: -- Not implemented in linux kernel */ #endif #ifdef TARGET_NR_osf_sigprocmask /* Alpha specific. */ case TARGET_NR_osf_sigprocmask: { abi_ulong mask; int how; sigset_t set, oldset; switch(arg1) { case TARGET_SIG_BLOCK: how = SIG_BLOCK; case TARGET_SIG_UNBLOCK: how = SIG_UNBLOCK; case TARGET_SIG_SETMASK: how = SIG_SETMASK; default: goto fail; mask = arg2; target_to_host_old_sigset(&set, &mask); ret = do_sigprocmask(how, &set, &oldset); if (!ret) { host_to_target_old_sigset(&mask, &oldset); ret = mask; #endif #ifdef TARGET_NR_getgid32 case TARGET_NR_getgid32: ret = get_errno(getgid()); #endif #ifdef TARGET_NR_geteuid32 case TARGET_NR_geteuid32: ret = get_errno(geteuid()); #endif #ifdef TARGET_NR_getegid32 case TARGET_NR_getegid32: ret = get_errno(getegid()); #endif #ifdef TARGET_NR_setreuid32 case TARGET_NR_setreuid32: ret = get_errno(setreuid(arg1, arg2)); #endif #ifdef TARGET_NR_setregid32 case TARGET_NR_setregid32: ret = get_errno(setregid(arg1, arg2)); #endif #ifdef TARGET_NR_getgroups32 case TARGET_NR_getgroups32: { int gidsetsize = arg1; uint32_t *target_grouplist; gid_t *grouplist; int i; grouplist = alloca(gidsetsize * sizeof(gid_t)); ret = get_errno(getgroups(gidsetsize, grouplist)); if (gidsetsize == 0) if (!is_error(ret)) { target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); if (!target_grouplist) { ret = -TARGET_EFAULT; goto fail; for(i = 0;i < ret; i++) target_grouplist[i] = tswap32(grouplist[i]); unlock_user(target_grouplist, arg2, gidsetsize * 4); #endif #ifdef TARGET_NR_setgroups32 case TARGET_NR_setgroups32: { int gidsetsize = arg1; uint32_t *target_grouplist; gid_t *grouplist; int i; grouplist = alloca(gidsetsize * sizeof(gid_t)); target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); if (!target_grouplist) { ret = -TARGET_EFAULT; goto fail; for(i = 0;i < gidsetsize; i++) grouplist[i] = tswap32(target_grouplist[i]); unlock_user(target_grouplist, arg2, 0); ret = get_errno(setgroups(gidsetsize, grouplist)); #endif #ifdef TARGET_NR_fchown32 case TARGET_NR_fchown32: ret = get_errno(fchown(arg1, arg2, arg3)); #endif #ifdef TARGET_NR_setresuid32 case TARGET_NR_setresuid32: ret = get_errno(sys_setresuid(arg1, arg2, arg3)); #endif #ifdef TARGET_NR_getresuid32 case TARGET_NR_getresuid32: { uid_t ruid, euid, suid; ret = get_errno(getresuid(&ruid, &euid, &suid)); if (!is_error(ret)) { if (put_user_u32(ruid, arg1) || put_user_u32(euid, arg2) || put_user_u32(suid, arg3)) goto efault; #endif #ifdef TARGET_NR_setresgid32 case TARGET_NR_setresgid32: ret = get_errno(sys_setresgid(arg1, arg2, arg3)); #endif #ifdef TARGET_NR_getresgid32 case TARGET_NR_getresgid32: { gid_t rgid, egid, sgid; ret = get_errno(getresgid(&rgid, &egid, &sgid)); if (!is_error(ret)) { if (put_user_u32(rgid, arg1) || put_user_u32(egid, arg2) || put_user_u32(sgid, arg3)) goto efault; #endif #ifdef TARGET_NR_chown32 case TARGET_NR_chown32: if (!(p = lock_user_string(arg1))) goto efault; ret = get_errno(chown(p, arg2, arg3)); unlock_user(p, arg1, 0); #endif #ifdef TARGET_NR_setuid32 case TARGET_NR_setuid32: ret = get_errno(sys_setuid(arg1)); #endif #ifdef TARGET_NR_setgid32 case TARGET_NR_setgid32: ret = get_errno(sys_setgid(arg1)); #endif #ifdef TARGET_NR_setfsuid32 case TARGET_NR_setfsuid32: ret = get_errno(setfsuid(arg1)); #endif #ifdef TARGET_NR_setfsgid32 case TARGET_NR_setfsgid32: ret = get_errno(setfsgid(arg1)); #endif case TARGET_NR_pivot_root: goto unimplemented; #ifdef TARGET_NR_mincore case TARGET_NR_mincore: { void *a; ret = -TARGET_EFAULT; if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0))) goto efault; if (!(p = lock_user_string(arg3))) goto mincore_fail; ret = get_errno(mincore(a, arg2, p)); unlock_user(p, arg3, ret); mincore_fail: unlock_user(a, arg1, 0); #endif #ifdef TARGET_NR_arm_fadvise64_64 case TARGET_NR_arm_fadvise64_64: /* arm_fadvise64_64 looks like fadvise64_64 but * with different argument order: fd, advice, offset, len * rather than the usual fd, offset, len, advice. * Note that offset and len are both 64-bit so appear as * pairs of 32-bit registers. */ ret = posix_fadvise(arg1, target_offset64(arg3, arg4), target_offset64(arg5, arg6), arg2); ret = -host_to_target_errno(ret); #endif #if TARGET_ABI_BITS == 32 #ifdef TARGET_NR_fadvise64_64 case TARGET_NR_fadvise64_64: /* 6 args: fd, offset (high, low), len (high, low), advice */ if (regpairs_aligned(cpu_env)) { /* offset is in (3,4), len in (5,6) and advice in 7 */ arg2 = arg3; arg3 = arg4; arg4 = arg5; arg5 = arg6; arg6 = arg7; ret = -host_to_target_errno(posix_fadvise(arg1, target_offset64(arg2, arg3), target_offset64(arg4, arg5), arg6)); #endif #ifdef TARGET_NR_fadvise64 case TARGET_NR_fadvise64: /* 5 args: fd, offset (high, low), len, advice */ if (regpairs_aligned(cpu_env)) { /* offset is in (3,4), len in 5 and advice in 6 */ arg2 = arg3; arg3 = arg4; arg4 = arg5; arg5 = arg6; ret = -host_to_target_errno(posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5)); #endif #else /* not a 32-bit ABI */ #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64) #ifdef TARGET_NR_fadvise64_64 case TARGET_NR_fadvise64_64: #endif #ifdef TARGET_NR_fadvise64 case TARGET_NR_fadvise64: #endif #ifdef TARGET_S390X switch (arg4) { case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */ case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */ case 6: arg4 = POSIX_FADV_DONTNEED; break; case 7: arg4 = POSIX_FADV_NOREUSE; break; default: break; #endif ret = -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4)); #endif #endif /* end of 64-bit ABI fadvise handling */ #ifdef TARGET_NR_madvise case TARGET_NR_madvise: /* A straight passthrough may not be safe because qemu sometimes turns private file-backed mappings into anonymous mappings. This will break MADV_DONTNEED. This is a hint, so ignoring and returning success is ok. */ ret = get_errno(0); #endif #if TARGET_ABI_BITS == 32 case TARGET_NR_fcntl64: { int cmd; struct flock64 fl; from_flock64_fn *copyfrom = copy_from_user_flock64; to_flock64_fn *copyto = copy_to_user_flock64; #ifdef TARGET_ARM if (((CPUARMState *)cpu_env)->eabi) { copyfrom = copy_from_user_eabi_flock64; copyto = copy_to_user_eabi_flock64; #endif cmd = target_to_host_fcntl_cmd(arg2); if (cmd == -TARGET_EINVAL) { ret = cmd; switch(arg2) { case TARGET_F_GETLK64: ret = copyfrom(&fl, arg3); if (ret) { ret = get_errno(fcntl(arg1, cmd, &fl)); if (ret == 0) { ret = copyto(arg3, &fl); case TARGET_F_SETLK64: case TARGET_F_SETLKW64: ret = copyfrom(&fl, arg3); if (ret) { ret = get_errno(safe_fcntl(arg1, cmd, &fl)); default: ret = do_fcntl(arg1, arg2, arg3); #endif #ifdef TARGET_NR_cacheflush case TARGET_NR_cacheflush: /* self-modifying code is handled automatically, so nothing needed */ ret = 0; #endif #ifdef TARGET_NR_security case TARGET_NR_security: goto unimplemented; #endif #ifdef TARGET_NR_getpagesize case TARGET_NR_getpagesize: ret = TARGET_PAGE_SIZE; #endif case TARGET_NR_gettid: ret = get_errno(gettid()); #ifdef TARGET_NR_readahead case TARGET_NR_readahead: #if TARGET_ABI_BITS == 32 if (regpairs_aligned(cpu_env)) { arg2 = arg3; arg3 = arg4; arg4 = arg5; ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4)); #else ret = get_errno(readahead(arg1, arg2, arg3)); #endif #endif #ifdef CONFIG_ATTR #ifdef TARGET_NR_setxattr case TARGET_NR_listxattr: case TARGET_NR_llistxattr: { void *p, *b = 0; if (arg2) { b = lock_user(VERIFY_WRITE, arg2, arg3, 0); if (!b) { ret = -TARGET_EFAULT; p = lock_user_string(arg1); if (p) { if (num == TARGET_NR_listxattr) { ret = get_errno(listxattr(p, b, arg3)); } else { ret = get_errno(llistxattr(p, b, arg3)); } else { ret = -TARGET_EFAULT; unlock_user(p, arg1, 0); unlock_user(b, arg2, arg3); case TARGET_NR_flistxattr: { void *b = 0; if (arg2) { b = lock_user(VERIFY_WRITE, arg2, arg3, 0); if (!b) { ret = -TARGET_EFAULT; ret = get_errno(flistxattr(arg1, b, arg3)); unlock_user(b, arg2, arg3); case TARGET_NR_setxattr: case TARGET_NR_lsetxattr: { void *p, *n, *v = 0; if (arg3) { v = lock_user(VERIFY_READ, arg3, arg4, 1); if (!v) { ret = -TARGET_EFAULT; p = lock_user_string(arg1); n = lock_user_string(arg2); if (p && n) { if (num == TARGET_NR_setxattr) { ret = get_errno(setxattr(p, n, v, arg4, arg5)); } else { ret = get_errno(lsetxattr(p, n, v, arg4, arg5)); } else { ret = -TARGET_EFAULT; unlock_user(p, arg1, 0); unlock_user(n, arg2, 0); unlock_user(v, arg3, 0); case TARGET_NR_fsetxattr: { void *n, *v = 0; if (arg3) { v = lock_user(VERIFY_READ, arg3, arg4, 1); if (!v) { ret = -TARGET_EFAULT; n = lock_user_string(arg2); if (n) { ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5)); } else { ret = -TARGET_EFAULT; unlock_user(n, arg2, 0); unlock_user(v, arg3, 0); case TARGET_NR_getxattr: case TARGET_NR_lgetxattr: { void *p, *n, *v = 0; if (arg3) { v = lock_user(VERIFY_WRITE, arg3, arg4, 0); if (!v) { ret = -TARGET_EFAULT; p = lock_user_string(arg1); n = lock_user_string(arg2); if (p && n) { if (num == TARGET_NR_getxattr) { ret = get_errno(getxattr(p, n, v, arg4)); } else { ret = get_errno(lgetxattr(p, n, v, arg4)); } else { ret = -TARGET_EFAULT; unlock_user(p, arg1, 0); unlock_user(n, arg2, 0); unlock_user(v, arg3, arg4); case TARGET_NR_fgetxattr: { void *n, *v = 0; if (arg3) { v = lock_user(VERIFY_WRITE, arg3, arg4, 0); if (!v) { ret = -TARGET_EFAULT; n = lock_user_string(arg2); if (n) { ret = get_errno(fgetxattr(arg1, n, v, arg4)); } else { ret = -TARGET_EFAULT; unlock_user(n, arg2, 0); unlock_user(v, arg3, arg4); case TARGET_NR_removexattr: case TARGET_NR_lremovexattr: { void *p, *n; p = lock_user_string(arg1); n = lock_user_string(arg2); if (p && n) { if (num == TARGET_NR_removexattr) { ret = get_errno(removexattr(p, n)); } else { ret = get_errno(lremovexattr(p, n)); } else { ret = -TARGET_EFAULT; unlock_user(p, arg1, 0); unlock_user(n, arg2, 0); case TARGET_NR_fremovexattr: { void *n; n = lock_user_string(arg2); if (n) { ret = get_errno(fremovexattr(arg1, n)); } else { ret = -TARGET_EFAULT; unlock_user(n, arg2, 0); #endif #endif /* CONFIG_ATTR */ #ifdef TARGET_NR_set_thread_area case TARGET_NR_set_thread_area: #if defined(TARGET_MIPS) ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1; ret = 0; #elif defined(TARGET_CRIS) if (arg1 & 0xff) else { ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1; ret = 0; #elif defined(TARGET_I386) && defined(TARGET_ABI32) ret = do_set_thread_area(cpu_env, arg1); #elif defined(TARGET_M68K) { TaskState *ts = cpu->opaque; ts->tp_value = arg1; ret = 0; #else goto unimplemented_nowarn; #endif #endif #ifdef TARGET_NR_get_thread_area case TARGET_NR_get_thread_area: #if defined(TARGET_I386) && defined(TARGET_ABI32) ret = do_get_thread_area(cpu_env, arg1); #elif defined(TARGET_M68K) { TaskState *ts = cpu->opaque; ret = ts->tp_value; #else goto unimplemented_nowarn; #endif #endif #ifdef TARGET_NR_getdomainname case TARGET_NR_getdomainname: goto unimplemented_nowarn; #endif #ifdef TARGET_NR_clock_gettime case TARGET_NR_clock_gettime: { struct timespec ts; ret = get_errno(clock_gettime(arg1, &ts)); if (!is_error(ret)) { host_to_target_timespec(arg2, &ts); #endif #ifdef TARGET_NR_clock_getres case TARGET_NR_clock_getres: { struct timespec ts; ret = get_errno(clock_getres(arg1, &ts)); if (!is_error(ret)) { host_to_target_timespec(arg2, &ts); #endif #ifdef TARGET_NR_clock_nanosleep case TARGET_NR_clock_nanosleep: { struct timespec ts; target_to_host_timespec(&ts, arg3); ret = get_errno(safe_clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL)); if (arg4) host_to_target_timespec(arg4, &ts); #if defined(TARGET_PPC) /* clock_nanosleep is odd in that it returns positive errno values. * On PPC, CR0 bit 3 should be set in such a situation. */ if (ret && ret != -TARGET_ERESTARTSYS) { ((CPUPPCState *)cpu_env)->crf[0] |= 1; #endif #endif #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) case TARGET_NR_set_tid_address: ret = get_errno(set_tid_address((int *)g2h(arg1))); #endif case TARGET_NR_tkill: ret = get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2))); case TARGET_NR_tgkill: ret = get_errno(safe_tgkill((int)arg1, (int)arg2, target_to_host_signal(arg3))); #ifdef TARGET_NR_set_robust_list case TARGET_NR_set_robust_list: case TARGET_NR_get_robust_list: /* The ABI for supporting robust futexes has userspace pass * the kernel a pointer to a linked list which is updated by * userspace after the syscall; the list is walked by the kernel * when the thread exits. Since the linked list in QEMU guest * memory isn't a valid linked list for the host and we have * no way to reliably intercept the thread-death event, we can't * support these. Silently return ENOSYS so that guest userspace * falls back to a non-robust futex implementation (which should * be OK except in the corner case of the guest crashing while * holding a mutex that is shared with another process via * shared memory). */ goto unimplemented_nowarn; #endif #if defined(TARGET_NR_utimensat) case TARGET_NR_utimensat: { struct timespec *tsp, ts[2]; if (!arg3) { tsp = NULL; } else { target_to_host_timespec(ts, arg3); target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); tsp = ts; if (!arg2) ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4)); else { if (!(p = lock_user_string(arg2))) { ret = -TARGET_EFAULT; goto fail; ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4)); unlock_user(p, arg2, 0); #endif case TARGET_NR_futex: ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6); #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) case TARGET_NR_inotify_init: ret = get_errno(sys_inotify_init()); #endif #ifdef CONFIG_INOTIFY1 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) case TARGET_NR_inotify_init1: ret = get_errno(sys_inotify_init1(arg1)); #endif #endif #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) case TARGET_NR_inotify_add_watch: p = lock_user_string(arg2); ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3)); unlock_user(p, arg2, 0); #endif #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) case TARGET_NR_inotify_rm_watch: ret = get_errno(sys_inotify_rm_watch(arg1, arg2)); #endif #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) case TARGET_NR_mq_open: { struct mq_attr posix_mq_attr, *attrp; p = lock_user_string(arg1 - 1); if (arg4 != 0) { copy_from_user_mq_attr (&posix_mq_attr, arg4); attrp = &posix_mq_attr; } else { attrp = 0; ret = get_errno(mq_open(p, arg2, arg3, attrp)); unlock_user (p, arg1, 0); case TARGET_NR_mq_unlink: p = lock_user_string(arg1 - 1); ret = get_errno(mq_unlink(p)); unlock_user (p, arg1, 0); case TARGET_NR_mq_timedsend: { struct timespec ts; p = lock_user (VERIFY_READ, arg2, arg3, 1); if (arg5 != 0) { target_to_host_timespec(&ts, arg5); ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts)); host_to_target_timespec(arg5, &ts); } else { ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL)); unlock_user (p, arg2, arg3); case TARGET_NR_mq_timedreceive: { struct timespec ts; unsigned int prio; p = lock_user (VERIFY_READ, arg2, arg3, 1); if (arg5 != 0) { target_to_host_timespec(&ts, arg5); ret = get_errno(safe_mq_timedreceive(arg1, p, arg3, &prio, &ts)); host_to_target_timespec(arg5, &ts); } else { ret = get_errno(safe_mq_timedreceive(arg1, p, arg3, &prio, NULL)); unlock_user (p, arg2, arg3); if (arg4 != 0) put_user_u32(prio, arg4); /* Not implemented for now... */ /* case TARGET_NR_mq_notify: */ /* break; */ case TARGET_NR_mq_getsetattr: { struct mq_attr posix_mq_attr_in, posix_mq_attr_out; ret = 0; if (arg3 != 0) { ret = mq_getattr(arg1, &posix_mq_attr_out); copy_to_user_mq_attr(arg3, &posix_mq_attr_out); if (arg2 != 0) { copy_from_user_mq_attr(&posix_mq_attr_in, arg2); ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out); #endif #ifdef CONFIG_SPLICE #ifdef TARGET_NR_tee case TARGET_NR_tee: { ret = get_errno(tee(arg1,arg2,arg3,arg4)); #endif #ifdef TARGET_NR_splice case TARGET_NR_splice: { loff_t loff_in, loff_out; loff_t *ploff_in = NULL, *ploff_out = NULL; if (arg2) { if (get_user_u64(loff_in, arg2)) { goto efault; ploff_in = &loff_in; if (arg4) { if (get_user_u64(loff_out, arg4)) { goto efault; ploff_out = &loff_out; ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6)); if (arg2) { if (put_user_u64(loff_in, arg2)) { goto efault; if (arg4) { if (put_user_u64(loff_out, arg4)) { goto efault; #endif #ifdef TARGET_NR_vmsplice case TARGET_NR_vmsplice: { struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); if (vec != NULL) { ret = get_errno(vmsplice(arg1, vec, arg3, arg4)); unlock_iovec(vec, arg2, arg3, 0); } else { ret = -host_to_target_errno(errno); #endif #endif /* CONFIG_SPLICE */ #ifdef CONFIG_EVENTFD #if defined(TARGET_NR_eventfd) case TARGET_NR_eventfd: ret = get_errno(eventfd(arg1, 0)); fd_trans_unregister(ret); #endif #if defined(TARGET_NR_eventfd2) case TARGET_NR_eventfd2: { int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)); if (arg2 & TARGET_O_NONBLOCK) { host_flags |= O_NONBLOCK; if (arg2 & TARGET_O_CLOEXEC) { host_flags |= O_CLOEXEC; ret = get_errno(eventfd(arg1, host_flags)); fd_trans_unregister(ret); #endif #endif /* CONFIG_EVENTFD */ #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate) case TARGET_NR_fallocate: #if TARGET_ABI_BITS == 32 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4), target_offset64(arg5, arg6))); #else ret = get_errno(fallocate(arg1, arg2, arg3, arg4)); #endif #endif #if defined(CONFIG_SYNC_FILE_RANGE) #if defined(TARGET_NR_sync_file_range) case TARGET_NR_sync_file_range: #if TARGET_ABI_BITS == 32 #if defined(TARGET_MIPS) ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4), target_offset64(arg5, arg6), arg7)); #else ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3), target_offset64(arg4, arg5), arg6)); #endif /* !TARGET_MIPS */ #else ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4)); #endif #endif #if defined(TARGET_NR_sync_file_range2) case TARGET_NR_sync_file_range2: /* This is like sync_file_range but the arguments are reordered */ #if TARGET_ABI_BITS == 32 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4), target_offset64(arg5, arg6), arg2)); #else ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2)); #endif #endif #endif #if defined(TARGET_NR_signalfd4) case TARGET_NR_signalfd4: ret = do_signalfd4(arg1, arg2, arg4); #endif #if defined(TARGET_NR_signalfd) case TARGET_NR_signalfd: ret = do_signalfd4(arg1, arg2, 0); #endif #if defined(CONFIG_EPOLL) #if defined(TARGET_NR_epoll_create) case TARGET_NR_epoll_create: ret = get_errno(epoll_create(arg1)); #endif #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1) case TARGET_NR_epoll_create1: ret = get_errno(epoll_create1(arg1)); #endif #if defined(TARGET_NR_epoll_ctl) case TARGET_NR_epoll_ctl: { struct epoll_event ep; struct epoll_event *epp = 0; if (arg4) { struct target_epoll_event *target_ep; if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) { goto efault; ep.events = tswap32(target_ep->events); /* The epoll_data_t union is just opaque data to the kernel, * so we transfer all 64 bits across and need not worry what * actual data type it is. */ ep.data.u64 = tswap64(target_ep->data.u64); unlock_user_struct(target_ep, arg4, 0); epp = &ep; ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp)); #endif #if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait) #if defined(TARGET_NR_epoll_wait) case TARGET_NR_epoll_wait: #endif #if defined(TARGET_NR_epoll_pwait) case TARGET_NR_epoll_pwait: #endif { struct target_epoll_event *target_ep; struct epoll_event *ep; int epfd = arg1; int maxevents = arg3; int timeout = arg4; if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) { target_ep = lock_user(VERIFY_WRITE, arg2, maxevents * sizeof(struct target_epoll_event), 1); if (!target_ep) { goto efault; ep = alloca(maxevents * sizeof(struct epoll_event)); switch (num) { #if defined(TARGET_NR_epoll_pwait) case TARGET_NR_epoll_pwait: { target_sigset_t *target_set; sigset_t _set, *set = &_set; if (arg5) { if (arg6 != sizeof(target_sigset_t)) { target_set = lock_user(VERIFY_READ, arg5, sizeof(target_sigset_t), 1); if (!target_set) { unlock_user(target_ep, arg2, 0); goto efault; target_to_host_sigset(set, target_set); unlock_user(target_set, arg5, 0); } else { set = NULL; ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout, set, SIGSET_T_SIZE)); #endif #if defined(TARGET_NR_epoll_wait) case TARGET_NR_epoll_wait: ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout, NULL, 0)); #endif default: ret = -TARGET_ENOSYS; if (!is_error(ret)) { int i; for (i = 0; i < ret; i++) { target_ep[i].events = tswap32(ep[i].events); target_ep[i].data.u64 = tswap64(ep[i].data.u64); unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event)); #endif #endif #ifdef TARGET_NR_prlimit64 case TARGET_NR_prlimit64: { /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */ struct target_rlimit64 *target_rnew, *target_rold; struct host_rlimit64 rnew, rold, *rnewp = 0; int resource = target_to_host_resource(arg2); if (arg3) { if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) { goto efault; rnew.rlim_cur = tswap64(target_rnew->rlim_cur); rnew.rlim_max = tswap64(target_rnew->rlim_max); unlock_user_struct(target_rnew, arg3, 0); rnewp = &rnew; ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0)); if (!is_error(ret) && arg4) { if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) { goto efault; target_rold->rlim_cur = tswap64(rold.rlim_cur); target_rold->rlim_max = tswap64(rold.rlim_max); unlock_user_struct(target_rold, arg4, 1); #endif #ifdef TARGET_NR_gethostname case TARGET_NR_gethostname: { char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0); if (name) { ret = get_errno(gethostname(name, arg2)); unlock_user(name, arg1, arg2); } else { ret = -TARGET_EFAULT; #endif #ifdef TARGET_NR_atomic_cmpxchg_32 case TARGET_NR_atomic_cmpxchg_32: { /* should use start_exclusive from main.c */ abi_ulong mem_value; if (get_user_u32(mem_value, arg6)) { target_siginfo_t info; info.si_signo = SIGSEGV; info.si_errno = 0; info.si_code = TARGET_SEGV_MAPERR; info._sifields._sigfault._addr = arg6; queue_signal((CPUArchState *)cpu_env, info.si_signo, &info); ret = 0xdeadbeef; if (mem_value == arg2) put_user_u32(arg1, arg6); ret = mem_value; #endif #ifdef TARGET_NR_atomic_barrier case TARGET_NR_atomic_barrier: { /* Like the kernel implementation and the qemu arm barrier, no-op this? */ ret = 0; #endif #ifdef TARGET_NR_timer_create case TARGET_NR_timer_create: { /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */ struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL; int clkid = arg1; int timer_index = next_free_host_timer(); if (timer_index < 0) { ret = -TARGET_EAGAIN; } else { timer_t *phtimer = g_posix_timers + timer_index; if (arg2) { phost_sevp = &host_sevp; ret = target_to_host_sigevent(phost_sevp, arg2); if (ret != 0) { ret = get_errno(timer_create(clkid, phost_sevp, phtimer)); if (ret) { phtimer = NULL; } else { if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) { goto efault; #endif #ifdef TARGET_NR_timer_settime case TARGET_NR_timer_settime: { /* args: timer_t timerid, int flags, const struct itimerspec *new_value, * struct itimerspec * old_value */ target_timer_t timerid = get_timer_id(arg1); if (timerid < 0) { ret = timerid; } else if (arg3 == 0) { } else { timer_t htimer = g_posix_timers[timerid]; struct itimerspec hspec_new = {{0},}, hspec_old = {{0},}; target_to_host_itimerspec(&hspec_new, arg3); ret = get_errno( timer_settime(htimer, arg2, &hspec_new, &hspec_old)); host_to_target_itimerspec(arg2, &hspec_old); #endif #ifdef TARGET_NR_timer_gettime case TARGET_NR_timer_gettime: { /* args: timer_t timerid, struct itimerspec *curr_value */ target_timer_t timerid = get_timer_id(arg1); if (timerid < 0) { ret = timerid; } else if (!arg2) { ret = -TARGET_EFAULT; } else { timer_t htimer = g_posix_timers[timerid]; struct itimerspec hspec; ret = get_errno(timer_gettime(htimer, &hspec)); if (host_to_target_itimerspec(arg2, &hspec)) { ret = -TARGET_EFAULT; #endif #ifdef TARGET_NR_timer_getoverrun case TARGET_NR_timer_getoverrun: { /* args: timer_t timerid */ target_timer_t timerid = get_timer_id(arg1); if (timerid < 0) { ret = timerid; } else { timer_t htimer = g_posix_timers[timerid]; ret = get_errno(timer_getoverrun(htimer)); fd_trans_unregister(ret); #endif #ifdef TARGET_NR_timer_delete case TARGET_NR_timer_delete: { /* args: timer_t timerid */ target_timer_t timerid = get_timer_id(arg1); if (timerid < 0) { ret = timerid; } else { timer_t htimer = g_posix_timers[timerid]; ret = get_errno(timer_delete(htimer)); g_posix_timers[timerid] = 0; #endif #if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD) case TARGET_NR_timerfd_create: ret = get_errno(timerfd_create(arg1, target_to_host_bitmask(arg2, fcntl_flags_tbl))); #endif #if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD) case TARGET_NR_timerfd_gettime: { struct itimerspec its_curr; ret = get_errno(timerfd_gettime(arg1, &its_curr)); if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) { goto efault; #endif #if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD) case TARGET_NR_timerfd_settime: { struct itimerspec its_new, its_old, *p_new; if (arg3) { if (target_to_host_itimerspec(&its_new, arg3)) { goto efault; p_new = &its_new; } else { p_new = NULL; ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old)); if (arg4 && host_to_target_itimerspec(arg4, &its_old)) { goto efault; #endif #if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get) case TARGET_NR_ioprio_get: ret = get_errno(ioprio_get(arg1, arg2)); #endif #if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set) case TARGET_NR_ioprio_set: ret = get_errno(ioprio_set(arg1, arg2, arg3)); #endif #if defined(TARGET_NR_setns) && defined(CONFIG_SETNS) case TARGET_NR_setns: ret = get_errno(setns(arg1, arg2)); #endif #if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS) case TARGET_NR_unshare: ret = get_errno(unshare(arg1)); #endif default: unimplemented: gemu_log("qemu: Unsupported syscall: %d\n", num); #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) unimplemented_nowarn: #endif ret = -TARGET_ENOSYS; fail: #ifdef DEBUG gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret); #endif if(do_strace) print_syscall_ret(num, ret); trace_guest_user_syscall_ret(cpu, num, ret); return ret; efault: ret = -TARGET_EFAULT; goto fail;


static void build_chunks(MOVTrack *trk) { int i; MOVIentry *chunk= &trk->cluster[0]; uint64_t chunkSize = chunk->size; chunk->chunkNum= 1; trk->chunkCount= 1; for(i=1; i<trk->entry; i++){ if(chunk->pos + chunkSize == trk->cluster[i].pos){ chunkSize += trk->cluster[i].size; chunk->samplesInChunk += trk->cluster[i].entries; }else{ trk->cluster[i].chunkNum = chunk->chunkNum+1; chunk=&trk->cluster[i]; chunkSize = chunk->size; trk->chunkCount++; } } }