From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36835) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dG3Mp-0007eU-4Z for qemu-devel@nongnu.org; Wed, 31 May 2017 09:08:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dG3Mo-0003fj-20 for qemu-devel@nongnu.org; Wed, 31 May 2017 09:08:51 -0400 Received: from mail-lf0-x22e.google.com ([2a00:1450:4010:c07::22e]:36000) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dG3Mn-0003fb-Qp for qemu-devel@nongnu.org; Wed, 31 May 2017 09:08:49 -0400 Received: by mail-lf0-x22e.google.com with SMTP id h4so8619342lfj.3 for ; Wed, 31 May 2017 06:08:49 -0700 (PDT) From: riku.voipio@linaro.org Date: Wed, 31 May 2017 16:08:24 +0300 Message-Id: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PULL 12/15] linux-user: add support for rt_tgsigqueueinfo() system call List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, stefanha@redhat.com, =?UTF-8?q?Milo=C5=A1=20Stojanovi=C4=87?= From: Miloš Stojanović Add a new system call: rt_tgsigqueueinfo(). This system call is similar to rt_sigqueueinfo(), but instead of sending the signal and data to the whole thread group with the ID equal to the argument tgid, it sends it to a single thread within that thread group. The ID of the thread is specified by the tid argument. The implementation is based on the rt_sigqueueinfo() in linux-user mode, where the tid is added as the second argument and the previous second and third argument become arguments three and four, respectively. Signed-off-by: Miloš Stojanović Conflicts: linux-user/syscall.c Signed-off-by: Riku Voipio --- linux-user/syscall.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 3373853bb9..925ae11ea6 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -238,6 +238,7 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \ #define __NR_sys_getdents64 __NR_getdents64 #define __NR_sys_getpriority __NR_getpriority #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo +#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo #define __NR_sys_syslog __NR_syslog #define __NR_sys_futex __NR_futex #define __NR_sys_inotify_init __NR_inotify_init @@ -275,6 +276,8 @@ _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, loff_t *, res, uint, wh); #endif _syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo) +_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig, + siginfo_t *, uinfo) _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) #ifdef __NR_exit_group _syscall1(int,exit_group,int,error_code) @@ -8872,6 +8875,19 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); } break; + case TARGET_NR_rt_tgsigqueueinfo: + { + siginfo_t uinfo; + + p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1); + if (!p) { + goto efault; + } + target_to_host_siginfo(&uinfo, p); + unlock_user(p, arg4, 0); + ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo)); + } + break; #ifdef TARGET_NR_sigreturn case TARGET_NR_sigreturn: if (block_signals()) { -- 2.11.0