From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49873) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b6JAs-0003d3-NR for qemu-devel@nongnu.org; Fri, 27 May 2016 10:55:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b6JAq-0006Kc-Ot for qemu-devel@nongnu.org; Fri, 27 May 2016 10:55:41 -0400 Received: from orth.archaic.org.uk ([2001:8b0:1d0::2]:57395) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b6JAq-0006Im-EU for qemu-devel@nongnu.org; Fri, 27 May 2016 10:55:40 -0400 From: Peter Maydell Date: Fri, 27 May 2016 15:51:48 +0100 Message-Id: <1464360721-14359-7-git-send-email-peter.maydell@linaro.org> In-Reply-To: <1464360721-14359-1-git-send-email-peter.maydell@linaro.org> References: <1464360721-14359-1-git-send-email-peter.maydell@linaro.org> Subject: [Qemu-devel] [PATCH v2 06/19] linux-user: Use safe_syscall for sigsuspend syscalls List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: patches@linaro.org, Riku Voipio , Timothy Edward Baldwin Use the safe_syscall wrapper for sigsuspend syscalls. This means that we will definitely deliver a signal that arrives before we do the sigsuspend call, rather than blocking first and delivering afterwards. Signed-off-by: Peter Maydell --- linux-user/syscall.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index e4b7404..083f26f 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -703,6 +703,7 @@ safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \ fd_set *, exceptfds, struct timespec *, timeout, void *, sig) safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \ const struct timespec *,timeout,int *,uaddr2,int,val3) +safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize) static inline int host_to_target_sock_type(int host_type) { @@ -7007,7 +7008,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, target_to_host_old_sigset(&set, p); unlock_user(p, arg1, 0); #endif - ret = get_errno(sigsuspend(&set)); + ret = get_errno(safe_rt_sigsuspend(&set, SIGSET_T_SIZE)); } break; #endif @@ -7018,7 +7019,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, goto efault; target_to_host_sigset(&set, p); unlock_user(p, arg1, 0); - ret = get_errno(sigsuspend(&set)); + ret = get_errno(safe_rt_sigsuspend(&set, SIGSET_T_SIZE)); } break; case TARGET_NR_rt_sigtimedwait: -- 1.9.1