From: Carlos O'Donell via Libc-alpha <libc-alpha@sourceware.org>
To: Adhemerval Zanella <adhemerval.zanella@linaro.org>,
libc-alpha@sourceware.org
Subject: Re: [PATCH v2 3/5] Linux: Assume and consolidate getpeername wire-up syscall
Date: Sun, 19 Feb 2023 16:23:07 -0500 [thread overview]
Message-ID: <818ac12a-8582-7617-34b6-9e850032c1bb@redhat.com> (raw)
In-Reply-To: <20221207212246.2384051-4-adhemerval.zanella@linaro.org>
On 12/7/22 16:22, Adhemerval Zanella wrote:
> And disable if kernel does not support it.
>
> Checked on x86_64-linux-gnu and i686-linux-gnu.
LGTM.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
> ---
> sysdeps/unix/sysv/linux/generic/syscalls.list | 4 ----
> sysdeps/unix/sysv/linux/getpeername.c | 7 +------
> sysdeps/unix/sysv/linux/i386/kernel-features.h | 6 +-----
> sysdeps/unix/sysv/linux/kernel-features.h | 1 +
> sysdeps/unix/sysv/linux/m68k/kernel-features.h | 6 +-----
> 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 | 6 +-----
> sysdeps/unix/sysv/linux/sh/kernel-features.h | 1 -
> sysdeps/unix/sysv/linux/sparc/kernel-features.h | 1 +
> 10 files changed, 6 insertions(+), 28 deletions(-)
> delete mode 100644 sysdeps/unix/sysv/linux/generic/syscalls.list
>
> diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list
> deleted file mode 100644
> index e89ce91ac0..0000000000
> --- a/sysdeps/unix/sysv/linux/generic/syscalls.list
> +++ /dev/null
> @@ -1,4 +0,0 @@
> -# File name Caller Syscall name # args Strong name Weak names
> -
> -# Socket APIs
> -getpeername - getpeername i:ipp __getpeername getpeername
OK. Remove getpeername from syscalls.list. Use the generic version C file.
> 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.
> #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 0c949349e1..d3d5376b92 100644
> --- a/sysdeps/unix/sysv/linux/i386/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/i386/kernel-features.h
> @@ -17,11 +17,6 @@
> License along with the GNU C Library; if not, see
> <https://www.gnu.org/licenses/>. */
>
> -/* Direct socketcalls available with kernel 4.3. */
> -#if __LINUX_KERNEL_VERSION >= 0x040300
> -# define __ASSUME_GETPEERNAME_SYSCALL 1
> -#endif
> -
OK. Remove check, and refactor meaning.
> #include_next <kernel-features.h>
>
> #undef __ASSUME_ACCEPT_SYSCALL
> @@ -42,6 +37,7 @@
> # undef __ASSUME_LISTEN_SYSCALL
> # undef __ASSUME_SHUTDOWN_SYSCALL
> # undef __ASSUME_GETSOCKNAME_SYSCALL
> +# undef __ASSUME_GETPEERNAME_SYSCALL
OK. Undefine in < 4.3 kernel.
> #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 cac8708050..403223c565 100644
> --- a/sysdeps/unix/sysv/linux/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/kernel-features.h
> @@ -85,6 +85,7 @@
> #define __ASSUME_LISTEN_SYSCALL 1
> #define __ASSUME_SHUTDOWN_SYSCALL 1
> #define __ASSUME_GETSOCKNAME_SYSCALL 1
> +#define __ASSUME_GETPEERNAME_SYSCALL 1
OK. Defined by default.
>
> /* 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 b8f8e48c8a..6f7f4b2481 100644
> --- a/sysdeps/unix/sysv/linux/m68k/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/m68k/kernel-features.h
> @@ -17,11 +17,6 @@
> License along with the GNU C Library. If not, see
> <https://www.gnu.org/licenses/>. */
>
> -/* Direct socketcalls available with kernel 4.3. */
> -#if __LINUX_KERNEL_VERSION >= 0x040300
> -# define __ASSUME_GETPEERNAME_SYSCALL 1
> -#endif
OK.
> -
> #include_next <kernel-features.h>
>
> #undef __ASSUME_ACCEPT_SYSCALL
> @@ -44,6 +39,7 @@
> # undef __ASSUME_LISTEN_SYSCALL
> # undef __ASSUME_SHUTDOWN_SYSCALL
> # undef __ASSUME_GETSOCKNAME_SYSCALL
> +# undef __ASSUME_GETPEERNAME_SYSCALL
OK.
> #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 12f9a55b03..72496aa922 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
OK. Not needed since linux generic defines it.
> #define __ASSUME_SEND_SYSCALL 1
> #define __ASSUME_RECV_SYSCALL 1
>
> diff --git a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
> index 852bac0313..e2dc7a15a3 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
OK. Likewise.
> #define __ASSUME_SEND_SYSCALL 1
> #define __ASSUME_RECV_SYSCALL 1
>
> diff --git a/sysdeps/unix/sysv/linux/s390/kernel-features.h b/sysdeps/unix/sysv/linux/s390/kernel-features.h
> index 3a3942fa68..254b3948f4 100644
> --- a/sysdeps/unix/sysv/linux/s390/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/s390/kernel-features.h
> @@ -17,11 +17,6 @@
> License along with the GNU C Library; if not, see
> <https://www.gnu.org/licenses/>. */
>
> -/* Direct socketcalls available with kernel 4.3. */
> -#if __LINUX_KERNEL_VERSION >= 0x040300
> -# define __ASSUME_GETPEERNAME_SYSCALL 1
> -#endif
> -
OK.
> #include_next <kernel-features.h>
>
> #undef __ASSUME_ACCEPT_SYSCALL
> @@ -44,6 +39,7 @@
> # undef __ASSUME_LISTEN_SYSCALL
> # undef __ASSUME_SHUTDOWN_SYSCALL
> # undef __ASSUME_GETSOCKNAME_SYSCALL
> +# undef __ASSUME_GETPEERNAME_SYSCALL
OK.
> #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 7a15569dfc..ae1387e7d7 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
OK. Not needed.
> #define __ASSUME_SEND_SYSCALL 1
> #define __ASSUME_RECV_SYSCALL 1
>
> diff --git a/sysdeps/unix/sysv/linux/sparc/kernel-features.h b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
> index 8ada43587b..3ecaf36005 100644
> --- a/sysdeps/unix/sysv/linux/sparc/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
> @@ -46,6 +46,7 @@
> in 4.20 (but present for 64-bit in all supported kernel versions). */
> #if !defined __arch64__ && __LINUX_KERNEL_VERSION < 0x041400
> # undef __ASSUME_GETSOCKNAME_SYSCALL
> +# undef __ASSUME_GETPEERNAME_SYSCALL
OK.
> #endif
>
> /* These syscalls were added for both 32-bit and 64-bit in 4.4. */
--
Cheers,
Carlos.
next prev parent reply other threads:[~2023-02-20 13:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-07 21:22 [PATCH v2 0/5] Remove Linux generic sysdep Adhemerval Zanella via Libc-alpha
2022-12-07 21:22 ` [PATCH v2 1/5] Linux: Move wordsize-32 Version to default Adhemerval Zanella via Libc-alpha
2023-02-19 21:11 ` Carlos O'Donell via Libc-alpha
2022-12-07 21:22 ` [PATCH v2 2/5] Linux: Assume and consolidate getsockname wire-up syscall Adhemerval Zanella via Libc-alpha
2023-02-19 21:20 ` Carlos O'Donell via Libc-alpha
2022-12-07 21:22 ` [PATCH v2 3/5] Linux: Assume and consolidate getpeername " Adhemerval Zanella via Libc-alpha
2023-02-19 21:23 ` Carlos O'Donell via Libc-alpha [this message]
2022-12-07 21:22 ` [PATCH v2 4/5] Linux: Remove unused generic Makefile Adhemerval Zanella via Libc-alpha
2023-02-19 21:27 ` Carlos O'Donell via Libc-alpha
2022-12-08 12:46 ` [PATCH v2 5/5] Linux: Remove generic Implies Adhemerval Zanella via Libc-alpha
2023-02-19 21:29 ` [PATCH v2 0/5] Remove Linux generic sysdep Carlos O'Donell via Libc-alpha
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