Le 23/01/2018 à 11:53, Andreas Schwab a écrit :
> This is needed for new architectures like RISC-V which do not provide any
> other rename-like syscall.
>
> Signed-off-by: Andreas Schwab <sch...@suse.de>
> ---
> linux-user/syscall.c | 34 ++++++++++++++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
>
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 5e54889522..c258a0a44b 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -598,6 +598,24 @@ static int sys_utimensat(int dirfd, const char *pathname,
> #endif
> #endif /* TARGET_NR_utimensat */
>
> +#ifdef TARGET_NR_renameat2
> +#if defined(__NR_renameat2)
> +#define __NR_sys_renameat2 __NR_renameat2
> +_syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd,
> + const char *, new, unsigned int, flags)
> +#else
> +static int sys_renameat2(int oldfd, const char *old,
> + int newfd, const char *new, int flags)
> +{
> + if (flags == 0) {
> + return renameat(oldfd, old, newfd, new);
> + }
> + errno = ENOSYS;
> + return -1;
> +}
> +#endif
> +#endif /* TARGET_NR_renameat2 */
> +
> #ifdef CONFIG_INOTIFY
> #include <sys/inotify.h>
>
> @@ -8342,6 +8360,22 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
> arg1,
> }
> break;
> #endif
> +#if defined(TARGET_NR_renameat2)
> + case TARGET_NR_renameat2:
> + {
> + void *p2;
> + p = lock_user_string(arg2);
> + p2 = lock_user_string(arg4);
> + if (!p || !p2) {
> + ret = -TARGET_EFAULT;
> + } else {
> + ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5));
> + }
> + unlock_user(p2, arg4, 0);
> + unlock_user(p, arg2, 0);
> + }
> + break;
> +#endif
> #ifdef TARGET_NR_mkdir
> case TARGET_NR_mkdir:
> if (!(p = lock_user_string(arg1)))
>
Reviewed-by: Laurent Vivier <laur...@vivier.eu>
