Le 12/10/2020 à 09:14, David Leonard a écrit :
>
> Tested on Ubuntu 20.04 x86_64 against arm-linux-gnueabi toolchain.
>
> Signed-off-by: David Leonard <david.leon...@digi.com>
> ---
> linux-user/syscall.c | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 897d20c076..8143c8c280 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -345,6 +345,10 @@ _syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type,
> unsigned long, idx1, unsigned long, idx2)
> #endif
>
> +#if defined(TARGET_NR_pivot_root) && defined(__NR_pivot_root)
> +_syscall2(int, pivot_root, const char *, new_root, const char *, put_old)
> +#endif
> +
> /*
> * It is assumed that struct statx is architecture independent.
> */
> @@ -8834,6 +8838,22 @@ static abi_long do_syscall1(void *cpu_env, int num,
> abi_long arg1,
> ret = get_errno(umount2(p, arg2));
> unlock_user(p, arg1, 0);
> return ret;
> +#endif
> +#if defined(TARGET_NR_pivot_root) && defined(__NR_pivot_root)
> + case TARGET_NR_pivot_root:
> + {
> + void *p2;
> + p = lock_user_string(arg1);
> + p2 = lock_user_string(arg2);
> + if (!p || !p2) {
> + ret = -TARGET_EFAULT;
> + } else {
> + ret = get_errno(pivot_root(p, p2));
> + }
> + unlock_user(p2, arg2, 0);
> + unlock_user(p, arg1, 0);
> + }
> + return ret;
> #endif
> case TARGET_NR_ioctl:
> return do_ioctl(arg1, arg2, arg3);
Reviewed-by: Laurent Vivier <laur...@vivier.eu>
Please, re-send you patch to qemu-devel@nongnu.org
Thanks,
Laurent
