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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.
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@ -22,13 +22,18 @@
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#include <sysdep.h>
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#include <sys/syscall.h>
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#ifdef __NR_poll
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#include "kernel-features.h"
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#if defined __NR_poll || __ASSUME_POLL_SYSCALL > 0
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extern int __syscall_poll __P ((struct pollfd *fds, unsigned int nfds,
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int timeout));
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# if __ASSUME_POLL_SYSCALL == 0
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static int __emulate_poll __P ((struct pollfd *fds, unsigned long int nfds,
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int timeout)) internal_function;
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# endif
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/* The real implementation. */
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int
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@ -37,6 +42,7 @@ __poll (fds, nfds, timeout)
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unsigned long int nfds;
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int timeout;
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{
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# if __ASSUME_POLL_SYSCALL == 0
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static int must_emulate;
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if (!must_emulate)
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@ -52,6 +58,9 @@ __poll (fds, nfds, timeout)
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}
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return __emulate_poll (fds, nfds, timeout);
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# else
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return INLINE_SYSCALL (poll, 3, fds, nfds, timeout);
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# endif
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}
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weak_alias (__poll, poll)
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@ -59,4 +68,7 @@ weak_alias (__poll, poll)
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# define __poll(fds, nfds, timeout) \
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static internal_function __emulate_poll (fds, nfds, timeout)
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#endif
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#include <sysdeps/unix/bsd/poll.c>
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#if __ASSUME_POLL_SYSCALL == 0
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# include <sysdeps/unix/bsd/poll.c>
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#endif
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