Le 12/01/2018 à 09:14, Samuel Thibault a écrit :
> Signed-off-by: Samuel Thibault <samuel.thiba...@ens-lyon.org>
>
> ---
> Difference between v1 and v2: handle failure of put_user_u32 with goto efault;
> Difference between v2 and v3: handle failure of sys_getcpu system call
> Difference between v3 and v4: use is_error
> ---
> linux-user/syscall.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 11c9116c4a..26403d7e5c 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -296,6 +296,8 @@ _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);
> +#define __NR_sys_getcpu __NR_getcpu
> +_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *,
> tcache);
> _syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
> void *, arg);
> _syscall2(int, capget, struct __user_cap_header_struct *, header,
> @@ -10403,6 +10405,23 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
> arg1,
> ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
> }
> break;
> + case TARGET_NR_getcpu:
> + {
> + unsigned cpu, node;
> + ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL,
> + arg2 ? &node : NULL,
> + NULL));
> + if (is_error(ret)) {
> + goto fail;
> + }
> + if (arg1 && put_user_u32(cpu, arg1)) {
> + goto efault;
> + }
> + if (arg2 && put_user_u32(node, arg2)) {
> + goto efault;
> + }
> + }
> + break;
> case TARGET_NR_sched_setparam:
> {
> struct sched_param *target_schp;
>
Reviewed-by: Laurent Vivier <laur...@vivier.eu>
