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* [glibc] Linux: Assume and consolidate getpeername wire-up syscall
@ 2023-02-20 16:29 Adhemerval Zanella
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From: Adhemerval Zanella @ 2023-02-20 16:29 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=48d256dee780e6e637a9d34b4232005e779786c2
commit 48d256dee780e6e637a9d34b4232005e779786c2
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue Oct 18 16:29:48 2022 -0300
Linux: Assume and consolidate getpeername wire-up syscall
And disable if kernel does not support it.
Checked on x86_64-linux-gnu and i686-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
Diff:
---
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(-)
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
diff --git a/sysdeps/unix/sysv/linux/getpeername.c b/sysdeps/unix/sysv/linux/getpeername.c
index eb49d40d3a..827fd631dc 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);
#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 1c5cbd3351..ed7efa3097 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
-
#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
#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 4a4d624aeb..07b440f4ee 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
/* 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 e57f09a74e..d0155783b7 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
-
#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
#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 10eff56743..3d6270b633 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
diff --git a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h
index 231742a5c3..e092d3bd24 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
diff --git a/sysdeps/unix/sysv/linux/s390/kernel-features.h b/sysdeps/unix/sysv/linux/s390/kernel-features.h
index 058b211e55..fb87a57a15 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
-
#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
#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 76e2de7bf5..953fa8dff0 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
diff --git a/sysdeps/unix/sysv/linux/sparc/kernel-features.h b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
index f71aa8ca38..98c938c16d 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
#endif
/* These syscalls were added for both 32-bit and 64-bit in 4.4. */
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