From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:57280) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R8WxM-0007OC-Vq for qemu-devel@nongnu.org; Tue, 27 Sep 2011 08:40:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1R8WxD-0005PZ-A8 for qemu-devel@nongnu.org; Tue, 27 Sep 2011 08:40:16 -0400 Received: from cantor2.suse.de ([195.135.220.15]:49726 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R8WxD-0005Op-4P for qemu-devel@nongnu.org; Tue, 27 Sep 2011 08:40:07 -0400 From: Alexander Graf Date: Tue, 27 Sep 2011 14:39:42 +0200 Message-Id: <1317127182-3190-1-git-send-email-agraf@suse.de> Subject: [Qemu-devel] [PATCH] linux-user: implement reboot syscall List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: riku.voipio@linaro.org For OBS, we're running a full cross-guest inside of a VM. When a build is done there, we reboot the guest as shutdown mechanism. Unfortunately, reboot is not implemented in linux-user. So this mechanism fails, spilling unpretty warnings. This patch implements sys_reboot() emulation. Signed-off-by: Alexander Graf --- linux-user/syscall.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 27970a4..808f488 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -245,6 +245,8 @@ _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len, #define __NR_sys_sched_setaffinity __NR_sched_setaffinity _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len, unsigned long *, user_mask_ptr); +_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd, + void *, arg); static bitmask_transtbl fcntl_flags_tbl[] = { { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, @@ -5858,7 +5860,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, break; #endif case TARGET_NR_reboot: - goto unimplemented; + if (!(p = lock_user_string(arg4))) + goto efault; + ret = reboot(arg1, arg2, arg3, p); + unlock_user(p, arg4, 0); + break; #ifdef TARGET_NR_readdir case TARGET_NR_readdir: goto unimplemented; -- 1.6.0.2