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authorUlrich Drepper <drepper@redhat.com>1999-05-26 23:37:38 +0000
committerUlrich Drepper <drepper@redhat.com>1999-05-26 23:37:38 +0000
commit958f238f3619373d3dbc106d3cda3c467b3419b1 (patch)
tree9d15d47658aeaae08ee7e5e5e9d4a63d034caa49 /sysdeps/unix/sysv/linux/poll.c
parent475e390e80a950a8746dc0b88341742dc99014e4 (diff)
Update.
1999-05-26 Ulrich Drepper <drepper@cygnus.com> * config.h.in: Add __LINUX_KERNEL_VERSION. * configure.in: Recognize --enable-kernel. * sysdeps/unix/sysv/linux/configure.in: Check for correct kernel headers if --enable-kernel is given and set __LINUX_KERNEL_VERSION appropriately. * sysdeps/unix/sysv/linux/init-first.c: If minimal kernel version is given perform runtime test. * sysdeps/unix/sysv/linux/kernel-features.h: New file. * sysdeps/unix/sysv/linux/getcwd.c: Elide compatibility code if minimal supported kernel is known to have the feature. * sysdeps/unix/sysv/linux/poll.c: Likewise. * sysdeps/unix/sysv/linux/pread.c: Likewise. * sysdeps/unix/sysv/linux/pread64.c: Likewise. * sysdeps/unix/sysv/linux/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/pwrite64.c: Likewise. * sysdeps/unix/sysv/linux/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/sigaction.c: Likewise. * sysdeps/unix/sysv/linux/sigprocmask.c: Likewise. * sysdeps/unix/sysv/linux/sigsuspend.c: Likewise. * sysdeps/unix/sysv/linux/testrtsig.h: Likewise. * sysdeps/unix/sysv/linux/i386/chown.c: Likewise. * sysdeps/unix/sysv/linux/i386/pread.c: Likewise. * sysdeps/unix/sysv/linux/i386/pread64.c: Likewise. * sysdeps/unix/sysv/linux/i386/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/i386/pwrite64.c: Likewise. * sysdeps/unix/sysv/linux/sysctl.c: Add __sysctl alias.
Diffstat (limited to 'sysdeps/unix/sysv/linux/poll.c')
-rw-r--r--sysdeps/unix/sysv/linux/poll.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/poll.c b/sysdeps/unix/sysv/linux/poll.c
index e7df3b7774..16433e53e7 100644
--- a/sysdeps/unix/sysv/linux/poll.c
+++ b/sysdeps/unix/sysv/linux/poll.c
@@ -22,13 +22,18 @@
#include <sysdep.h>
#include <sys/syscall.h>
-#ifdef __NR_poll
+
+#include "kernel-features.h"
+
+#if defined __NR_poll || __ASSUME_POLL_SYSCALL > 0
extern int __syscall_poll __P ((struct pollfd *fds, unsigned int nfds,
int timeout));
+# if __ASSUME_POLL_SYSCALL == 0
static int __emulate_poll __P ((struct pollfd *fds, unsigned long int nfds,
int timeout)) internal_function;
+# endif
/* The real implementation. */
int
@@ -37,6 +42,7 @@ __poll (fds, nfds, timeout)
unsigned long int nfds;
int timeout;
{
+# if __ASSUME_POLL_SYSCALL == 0
static int must_emulate;
if (!must_emulate)
@@ -52,6 +58,9 @@ __poll (fds, nfds, timeout)
}
return __emulate_poll (fds, nfds, timeout);
+# else
+ return INLINE_SYSCALL (poll, 3, fds, nfds, timeout);
+# endif
}
weak_alias (__poll, poll)
@@ -59,4 +68,7 @@ weak_alias (__poll, poll)
# define __poll(fds, nfds, timeout) \
static internal_function __emulate_poll (fds, nfds, timeout)
#endif
-#include <sysdeps/unix/bsd/poll.c>
+
+#if __ASSUME_POLL_SYSCALL == 0
+# include <sysdeps/unix/bsd/poll.c>
+#endif