[PATCH 23/30] Linux: Assume and consolidate getpeername wire-up syscall
Carlos O'Donell
carlos@redhat.com
Tue Dec 6 16:20:03 GMT 2022
On 10/19/22 18:14, Adhemerval Zanella via Libc-alpha wrote:
> And disable if kernel does not support it.
>
> Checked on x86_64-linux-gnu and i686-linux-gnu.
I assume this needs a v2 for the sparc32 changes noted by Joseph.
It looks good to me for the other arches.
Tested-by: Carlos O'Donell <carlos@redhat.com>
> ---
> sysdeps/unix/sysv/linux/generic/syscalls.list | 1 -
> sysdeps/unix/sysv/linux/getpeername.c | 7 +------
> sysdeps/unix/sysv/linux/i386/kernel-features.h | 2 +-
> sysdeps/unix/sysv/linux/kernel-features.h | 1 +
> sysdeps/unix/sysv/linux/m68k/kernel-features.h | 2 +-
> sysdeps/unix/sysv/linux/microblaze/kernel-features.h | 1 -
> sysdeps/unix/sysv/linux/powerpc/kernel-features.h | 1 -
> sysdeps/unix/sysv/linux/s390/kernel-features.h | 2 +-
> sysdeps/unix/sysv/linux/sh/kernel-features.h | 1 -
> 9 files changed, 5 insertions(+), 13 deletions(-)
>
> diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list
> index a5bb00a3e4..b000ca3c7c 100644
> --- a/sysdeps/unix/sysv/linux/generic/syscalls.list
> +++ b/sysdeps/unix/sysv/linux/generic/syscalls.list
> @@ -1,5 +1,4 @@
> # File name Caller Syscall name # args Strong name Weak names
>
> # Socket APIs
> -getpeername - getpeername i:ipp __getpeername getpeername
OK. Remove default wrapper.
> shutdown - shutdown i:ii __shutdown shutdown
> diff --git a/sysdeps/unix/sysv/linux/getpeername.c b/sysdeps/unix/sysv/linux/getpeername.c
> index 09ca76b9ad..63fa8e2fe5 100644
> --- a/sysdeps/unix/sysv/linux/getpeername.c
> +++ b/sysdeps/unix/sysv/linux/getpeername.c
> @@ -15,19 +15,14 @@
> License along with the GNU C Library; if not, see
> <https://www.gnu.org/licenses/>. */
>
> -#include <errno.h>
> -#include <signal.h>
> #include <sys/socket.h>
> -
> #include <socketcall.h>
> -#include <kernel-features.h>
> -#include <sys/syscall.h>
>
> int
> __getpeername (int fd, __SOCKADDR_ARG addr, socklen_t *len)
> {
> #ifdef __ASSUME_GETPEERNAME_SYSCALL
> - return INLINE_SYSCALL (getpeername, 3, fd, addr.__sockaddr__, len);
> + return INLINE_SYSCALL_CALL (getpeername, fd, addr.__sockaddr__, len);
OK. Default wrapper.
> #else
> return SOCKETCALL (getpeername, fd, addr.__sockaddr__, len);
> #endif
> diff --git a/sysdeps/unix/sysv/linux/i386/kernel-features.h b/sysdeps/unix/sysv/linux/i386/kernel-features.h
> index f294380215..423edc9017 100644
> --- a/sysdeps/unix/sysv/linux/i386/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/i386/kernel-features.h
> @@ -19,7 +19,6 @@
>
> /* Direct socketcalls available with kernel 4.3. */
> #if __LINUX_KERNEL_VERSION >= 0x040300
> -# define __ASSUME_GETPEERNAME_SYSCALL 1
> # define __ASSUME_SHUTDOWN_SYSCALL 1
> #endif
>
> @@ -41,6 +40,7 @@
> # undef __ASSUME_SOCKETPAIR_SYSCALL
> # undef __ASSUME_LISTEN_SYSCALL
> # undef __ASSUME_GETSOCKNAME_SYSCALL
> +# undef __ASSUME_GETPEERNAME_SYSCALL
> #endif
>
> /* i686 only supports ipc syscall before 5.1. */
> diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
> index 6fb99f5c35..c751530cd3 100644
> --- a/sysdeps/unix/sysv/linux/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/kernel-features.h
> @@ -84,6 +84,7 @@
> #define __ASSUME_SOCKETPAIR_SYSCALL 1
> #define __ASSUME_LISTEN_SYSCALL 1
> #define __ASSUME_GETSOCKNAME_SYSCALL 1
> +#define __ASSUME_GETPEERNAME_SYSCALL 1
>
> /* Support for SysV IPC through wired syscalls. All supported architectures
> either support ipc syscall and/or all the ipc correspondent syscalls. */
> diff --git a/sysdeps/unix/sysv/linux/m68k/kernel-features.h b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
> index 898c24ba62..a7b3458a21 100644
> --- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
> @@ -19,7 +19,6 @@
>
> /* Direct socketcalls available with kernel 4.3. */
> #if __LINUX_KERNEL_VERSION >= 0x040300
> -# define __ASSUME_GETPEERNAME_SYSCALL 1
> # define __ASSUME_SHUTDOWN_SYSCALL 1
> #endif
>
> @@ -43,6 +42,7 @@
> # undef __ASSUME_SOCKETPAIR_SYSCALL
> # undef __ASSUME_LISTEN_SYSCALL
> # undef __ASSUME_GETSOCKNAME_SYSCALL
> +# undef __ASSUME_GETPEERNAME_SYSCALL
> #endif
>
> /* No support for PI futexes or robust mutexes before 3.10 for m68k. */
> diff --git a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
> index 7e2b15859e..328529434d 100644
> --- a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
> @@ -19,7 +19,6 @@
>
> /* All supported kernel versions for MicroBlaze have these syscalls. */
> #define __ASSUME_CONNECT_SYSCALL 1
> -#define __ASSUME_GETPEERNAME_SYSCALL 1
> #define __ASSUME_SEND_SYSCALL 1
> #define __ASSUME_RECV_SYSCALL 1
> #define __ASSUME_SHUTDOWN_SYSCALL 1
> diff --git a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
> index 8953cb019f..7fae7ca429 100644
> --- a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
> @@ -19,7 +19,6 @@
>
> /* New syscalls added for PowerPC in 2.6.37. */
> #define __ASSUME_CONNECT_SYSCALL 1
> -#define __ASSUME_GETPEERNAME_SYSCALL 1
> #define __ASSUME_SEND_SYSCALL 1
> #define __ASSUME_RECV_SYSCALL 1
> #define __ASSUME_SHUTDOWN_SYSCALL 1
> diff --git a/sysdeps/unix/sysv/linux/s390/kernel-features.h b/sysdeps/unix/sysv/linux/s390/kernel-features.h
> index 1422ee620c..e797b71052 100644
> --- a/sysdeps/unix/sysv/linux/s390/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/s390/kernel-features.h
> @@ -19,7 +19,6 @@
>
> /* Direct socketcalls available with kernel 4.3. */
> #if __LINUX_KERNEL_VERSION >= 0x040300
> -# define __ASSUME_GETPEERNAME_SYSCALL 1
> # define __ASSUME_SHUTDOWN_SYSCALL 1
> #endif
>
> @@ -43,6 +42,7 @@
> # undef __ASSUME_SOCKETPAIR_SYSCALL
> # undef __ASSUME_LISTEN_SYSCALL
> # undef __ASSUME_GETSOCKNAME_SYSCALL
> +# undef __ASSUME_GETPEERNAME_SYSCALL
> #endif
>
> /* s390 only supports ipc syscall before 5.1. */
> diff --git a/sysdeps/unix/sysv/linux/sh/kernel-features.h b/sysdeps/unix/sysv/linux/sh/kernel-features.h
> index 91dc28f33f..3a0b4e6198 100644
> --- a/sysdeps/unix/sysv/linux/sh/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/sh/kernel-features.h
> @@ -24,7 +24,6 @@
>
> /* These syscalls were added for SH in 2.6.37. */
> #define __ASSUME_CONNECT_SYSCALL 1
> -#define __ASSUME_GETPEERNAME_SYSCALL 1
> #define __ASSUME_SEND_SYSCALL 1
> #define __ASSUME_RECV_SYSCALL 1
> #define __ASSUME_SHUTDOWN_SYSCALL 1
--
Cheers,
Carlos.
More information about the Libc-alpha
mailing list