Re: [Qemu-devel] [PATCH 1/2] alpha-linux-user: Fix umount syscall numbers

[Richard Henderson <rth@twiddle.net>]

Ping.

r~


On 07/24/2013 12:50 PM, Richard Henderson wrote:
> It has been pointed out on LKML that the alpha umount syscall numbers
> are named wrong, and a patch to rectify that has been posted for 3.11.
> 
> Glibc works around this by treating NR_umount as NR_umount2 if
> NR_oldumount exists.  That's more complicated than we need in QEMU,
> given that we control linux-user/*/syscall_nr.h.
> 
> This is the last instance of TARGET_NR_oldumount, so delete that from
> the strace.list.
> 
> Signed-off-by: Richard Henderson <rth@twiddle.net>
> ---
>  linux-user/alpha/syscall_nr.h | 4 ++--
>  linux-user/strace.list        | 3 ---
>  linux-user/syscall.c          | 2 +-
>  3 files changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/linux-user/alpha/syscall_nr.h b/linux-user/alpha/syscall_nr.h
> index ac2b6e2..d52d76e 100644
> --- a/linux-user/alpha/syscall_nr.h
> +++ b/linux-user/alpha/syscall_nr.h
> @@ -20,7 +20,7 @@
>  #define TARGET_NR_lseek		 19
>  #define TARGET_NR_getxpid		 20
>  #define TARGET_NR_osf_mount		 21
> -#define TARGET_NR_umount		 22
> +#define TARGET_NR_umount2		 22
>  #define TARGET_NR_setuid		 23
>  #define TARGET_NR_getxuid		 24
>  #define TARGET_NR_exec_with_loader	 25	/* not implemented */
> @@ -255,7 +255,7 @@
>  #define TARGET_NR_sysinfo		318
>  #define TARGET_NR__sysctl		319
>  /* 320 was sys_idle.  */
> -#define TARGET_NR_oldumount		321
> +#define TARGET_NR_umount		321
>  #define TARGET_NR_swapon		322
>  #define TARGET_NR_times		323
>  #define TARGET_NR_personality	324
> diff --git a/linux-user/strace.list b/linux-user/strace.list
> index 08f115d..4f9c364 100644
> --- a/linux-user/strace.list
> +++ b/linux-user/strace.list
> @@ -612,9 +612,6 @@
>  #ifdef TARGET_NR_oldstat
>  { TARGET_NR_oldstat, "oldstat" , NULL, NULL, NULL },
>  #endif
> -#ifdef TARGET_NR_oldumount
> -{ TARGET_NR_oldumount, "oldumount" , NULL, NULL, NULL },
> -#endif
>  #ifdef TARGET_NR_olduname
>  { TARGET_NR_olduname, "olduname" , NULL, NULL, NULL },
>  #endif
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 00a0390..e42c20e 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -5719,7 +5719,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
>              unlock_user(p, arg1, 0);
>          }
>          break;
> -#ifdef TARGET_NR_umount2 /* not on alpha */
> +#ifdef TARGET_NR_umount2
>      case TARGET_NR_umount2:
>          if (!(p = lock_user_string(arg1)))
>              goto efault;
>