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-rw-r--r--sysdeps/unix/sysv/linux/aarch64/kernel-features.h1
-rw-r--r--sysdeps/unix/sysv/linux/alpha/kernel-features.h5
-rw-r--r--sysdeps/unix/sysv/linux/arm/kernel-features.h5
-rw-r--r--sysdeps/unix/sysv/linux/ia64/kernel-features.h5
-rw-r--r--sysdeps/unix/sysv/linux/internal_recvmmsg.S12
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h21
-rw-r--r--sysdeps/unix/sysv/linux/microblaze/kernel-features.h4
-rw-r--r--sysdeps/unix/sysv/linux/mips/kernel-features.h5
-rw-r--r--sysdeps/unix/sysv/linux/recvmmsg.c13
-rw-r--r--sysdeps/unix/sysv/linux/tile/kernel-features.h1
10 files changed, 66 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/aarch64/kernel-features.h b/sysdeps/unix/sysv/linux/aarch64/kernel-features.h
index 222b61c02c..3f9cd049e9 100644
--- a/sysdeps/unix/sysv/linux/aarch64/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/aarch64/kernel-features.h
@@ -30,6 +30,7 @@
 #define __ASSUME_IN_NONBLOCK            1
 #define __ASSUME_O_CLOEXEC              1
 #define __ASSUME_PIPE2                  1
+#define __ASSUME_RECVMMSG_SYSCALL       1
 #define __ASSUME_SIGNALFD4		1
 #define __ASSUME_SOCK_CLOEXEC           1
 #define __ASSUME_UTIMES                 1
diff --git a/sysdeps/unix/sysv/linux/alpha/kernel-features.h b/sysdeps/unix/sysv/linux/alpha/kernel-features.h
index 8cceb34592..6e4a515749 100644
--- a/sysdeps/unix/sysv/linux/alpha/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/alpha/kernel-features.h
@@ -42,6 +42,11 @@
 # define __ASSUME_SIGNALFD4 1
 #endif
 
+/* Support for recvmmsg was added for alpha in 2.6.33.  */
+#if __LINUX_KERNEL_VERSION >= 0x020621
+# define __ASSUME_RECVMMSG_SYSCALL       1
+#endif
+
 /* Support for accept4 was added for alpha in 3.2.  */
 #if __LINUX_KERNEL_VERSION >= 0x030200
 # define __ASSUME_ACCEPT4_SYSCALL      1
diff --git a/sysdeps/unix/sysv/linux/arm/kernel-features.h b/sysdeps/unix/sysv/linux/arm/kernel-features.h
index 304f88d4a6..7b43e365e6 100644
--- a/sysdeps/unix/sysv/linux/arm/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/arm/kernel-features.h
@@ -31,6 +31,11 @@
 # define __ASSUME_SIGNALFD4	1
 #endif
 
+/* Support for the recvmmsg syscall was added in 2.6.33.  */
+#if __LINUX_KERNEL_VERSION >= 0x020621
+# define __ASSUME_RECVMMSG_SYSCALL	1
+#endif
+
 /* Support for the accept4 syscall was added in 2.6.36.  */
 #if __LINUX_KERNEL_VERSION >= 0x020624
 # define __ASSUME_ACCEPT4_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/ia64/kernel-features.h b/sysdeps/unix/sysv/linux/ia64/kernel-features.h
index 5c7c4eb8a5..b4955d9b1d 100644
--- a/sysdeps/unix/sysv/linux/ia64/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/ia64/kernel-features.h
@@ -47,6 +47,11 @@
 # define __ASSUME_DUP3		1
 #endif
 
+/* Support for the recvmmsg syscall was added in 2.6.33.  */
+#if __LINUX_KERNEL_VERSION >= 0x020621
+# define __ASSUME_RECVMMSG_SYSCALL	1
+#endif
+
 /* Support for the accept4 syscall was added in 3.3.  */
 #if __LINUX_KERNEL_VERSION >= 0x030300
 # define __ASSUME_ACCEPT4_SYSCALL	1
diff --git a/sysdeps/unix/sysv/linux/internal_recvmmsg.S b/sysdeps/unix/sysv/linux/internal_recvmmsg.S
index 66c1357940..6b776b9d6a 100644
--- a/sysdeps/unix/sysv/linux/internal_recvmmsg.S
+++ b/sysdeps/unix/sysv/linux/internal_recvmmsg.S
@@ -1,8 +1,18 @@
 #include <kernel-features.h>
 #include <sys/syscall.h>
+
+/* Do not use the recvmmsg syscall on socketcall architectures unless
+   it was added at the same time as the socketcall support or can be
+   assumed to be present.  */
+#if defined __ASSUME_SOCKETCALL \
+    && !defined __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL \
+    && !defined __ASSUME_RECVMMSG_SYSCALL
+# undef __NR_recvmmsg
+#endif
+
 #if !defined __NR_recvmmsg && defined __NR_socketcall
 # define socket	recvmmsg
-# ifdef __ASSUME_RECVMMSG
+# ifdef __ASSUME_RECVMMSG_SOCKETCALL
 #  define __socket recvmmsg
 # else
 #  define __socket __internal_recvmmsg
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index b6d7714073..034257edfa 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -233,8 +233,25 @@
 # define __ASSUME_F_GETOWN_EX	1
 #endif
 
-/* Support for the recvmmsg syscall was added in 2.6.33.  */
-#if __LINUX_KERNEL_VERSION >= 0x020621
+/* Support for recvmmsg functionality was added in 2.6.33.  The macros
+   defined correspond to those for accept4.  */
+#if __LINUX_KERNEL_VERSION >= 0x020621 && defined __ASSUME_SOCKETCALL
+# define __ASSUME_RECVMMSG_SOCKETCALL	1
+#endif
+
+/* The recvmmsg syscall was added for i386, x86_64 and SPARC in
+   2.6.33, and for PowerPC and SH in 2.6.37.  */
+#if (__LINUX_KERNEL_VERSION >= 0x020621			\
+     && (defined __i386__ || defined __x86_64__ || defined __sparc__))	\
+    || (__LINUX_KERNEL_VERSION >= 0x020625		\
+	&& (defined __powerpc__ || defined __sh__))
+# define __ASSUME_RECVMMSG_SYSCALL	1
+#endif
+#if defined __i386__ || defined __sparc__
+# define __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL	1
+#endif
+
+#if defined __ASSUME_RECVMMSG_SOCKETCALL || defined __ASSUME_RECVMMSG_SYSCALL
 # define __ASSUME_RECVMMSG	1
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
index 413b4a0b90..7266e96495 100644
--- a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
@@ -29,9 +29,11 @@
 #define __ASSUME_SIGNALFD4      1
 #define __ASSUME_DUP3           1
 
-/* Support for the accept4 syscall was added in 2.6.33.  */
+/* Support for the accept4 and recvmmsg syscalls was added in 2.6.33.  */
 #if __LINUX_KERNEL_VERSION >= 0x020621
 # define __ASSUME_ACCEPT4_SYSCALL        1
+# define __ASSUME_RECVMMSG_SYSCALL       1
 #endif
+#define __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL      1
 
 #include_next <kernel-features.h>
diff --git a/sysdeps/unix/sysv/linux/mips/kernel-features.h b/sysdeps/unix/sysv/linux/mips/kernel-features.h
index 94deaf9205..22064d9bd3 100644
--- a/sysdeps/unix/sysv/linux/mips/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/mips/kernel-features.h
@@ -36,6 +36,11 @@
 # define __ASSUME_ACCEPT4_SYSCALL	1
 #endif
 
+/* Support for the recvmmsg syscall was added in 2.6.33.  */
+#if __LINUX_KERNEL_VERSION >= 0x020621
+# define __ASSUME_RECVMMSG_SYSCALL	1
+#endif
+
 #include_next <kernel-features.h>
 
 /* The n32 syscall ABI did not have a getdents64 syscall until
diff --git a/sysdeps/unix/sysv/linux/recvmmsg.c b/sysdeps/unix/sysv/linux/recvmmsg.c
index 04ff42ee72..57ddf3152a 100644
--- a/sysdeps/unix/sysv/linux/recvmmsg.c
+++ b/sysdeps/unix/sysv/linux/recvmmsg.c
@@ -23,6 +23,14 @@
 #include <sys/syscall.h>
 #include <kernel-features.h>
 
+/* Do not use the recvmmsg syscall on socketcall architectures unless
+   it was added at the same time as the socketcall support or can be
+   assumed to be present.  */
+#if defined __ASSUME_SOCKETCALL \
+    && !defined __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL \
+    && !defined __ASSUME_RECVMMSG_SYSCALL
+# undef __NR_recvmmsg
+#endif
 
 #ifdef __NR_recvmmsg
 int
@@ -41,7 +49,7 @@ recvmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, int flags,
   return result;
 }
 #elif defined __NR_socketcall
-# ifndef __ASSUME_RECVMMSG
+# ifndef __ASSUME_RECVMMSG_SOCKETCALL
 extern int __internal_recvmmsg (int fd, struct mmsghdr *vmessages,
 				unsigned int vlen, int flags,
 				const struct timespec *tmo)
@@ -85,7 +93,8 @@ recvmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, int flags,
   return -1;
 }
 # else
-/* When __ASSUME_RECVMMSG recvmmsg is defined in internal_recvmmsg.S.  */
+/* When __ASSUME_RECVMMSG_SOCKETCALL recvmmsg is defined in
+   internal_recvmmsg.S.  */
 # endif
 #else
 # include <socket/recvmmsg.c>
diff --git a/sysdeps/unix/sysv/linux/tile/kernel-features.h b/sysdeps/unix/sysv/linux/tile/kernel-features.h
index e339e7a5b2..b415d8f10f 100644
--- a/sysdeps/unix/sysv/linux/tile/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/tile/kernel-features.h
@@ -27,6 +27,7 @@
 #define __ASSUME_SIGNALFD4		1
 #define __ASSUME_ACCEPT4_SYSCALL	1
 #define __ASSUME_DUP3			1
+#define __ASSUME_RECVMMSG_SYSCALL	1
 
 #include_next <kernel-features.h>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-07 02:56:08 +0000