From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=59959 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PiHPX-0000u5-S7 for qemu-devel@nongnu.org; Wed, 26 Jan 2011 21:16:36 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PiHPW-0003uY-JD for qemu-devel@nongnu.org; Wed, 26 Jan 2011 21:16:35 -0500 Received: from smtp.gentoo.org ([140.211.166.183]:45774) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PiHPW-0003uS-9V for qemu-devel@nongnu.org; Wed, 26 Jan 2011 21:16:34 -0500 From: Mike Frysinger Date: Wed, 26 Jan 2011 21:16:40 -0500 Message-Id: <1296094600-3897-1-git-send-email-vapier@gentoo.org> Subject: [Qemu-devel] [PATCH] linux-user: implement sched_{g,s}etaffinity List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, Riku Voipio Signed-off-by: Mike Frysinger --- linux-user/syscall.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 50 insertions(+), 0 deletions(-) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 3e285c6..f95429f 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -235,6 +235,12 @@ _syscall6(int,sys_futex,int *,uaddr,int,op,int,val, const struct timespec *,timeout,int *,uaddr2,int,val3) #endif #endif +#define __NR_sys_sched_getaffinity __NR_sched_getaffinity +_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len, + unsigned long *, user_mask_ptr); +#define __NR_sys_sched_setaffinity __NR_sched_setaffinity +_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len, + unsigned long *, user_mask_ptr); static bitmask_transtbl fcntl_flags_tbl[] = { { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, @@ -6374,6 +6380,50 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, return value. */ ret = -TARGET_ENOTDIR; break; + case TARGET_NR_sched_getaffinity: + { + unsigned int num_sets, host_mask_size, i; + unsigned long *host_mask; + abi_ulong *target_mask; + + num_sets = arg2 / sizeof(abi_ulong); + host_mask_size = num_sets * sizeof(*host_mask); + host_mask = alloca(host_mask_size); + + ret = get_errno(sys_sched_getaffinity(arg1, host_mask_size, host_mask)); + + if (!is_error(ret)) { + if (!lock_user_struct(VERIFY_WRITE, target_mask, arg3, 0)) { + goto efault; + } + for (i = 0; i < num_sets; ++i) { + target_mask[i] = tswapl(host_mask[i]); + } + unlock_user_struct(target_mask, arg2, 1); + } + } + break; + case TARGET_NR_sched_setaffinity: + { + unsigned int num_sets, host_mask_size, i; + unsigned long *host_mask; + abi_ulong *target_mask; + + num_sets = arg2 / sizeof(abi_ulong); + host_mask_size = num_sets * sizeof(*host_mask); + host_mask = alloca(host_mask_size); + + if (!lock_user_struct(VERIFY_READ, target_mask, arg3, 1)) { + goto efault; + } + for (i = 0; i < num_sets; ++i) { + host_mask[i] = tswapl(target_mask[i]); + } + unlock_user_struct(target_mask, arg2, 0); + + ret = get_errno(sys_sched_setaffinity(arg1, host_mask_size, host_mask)); + } + break; case TARGET_NR_sched_setparam: { struct sched_param *target_schp; -- 1.7.4.rc2