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Dist
Implies
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a.out.h
accept.S
adjtime.c
aio_sigqueue.c
bind.S
clock.c
cmsg_nxthdr.c
configure
configure.in
connect.S
device-nrs.h
dl-brk.c
dl-librecon.h
dl-origin.c
dl-osinfo.h
dl-sbrk.c
dl-sysdep.c
errlist.c
errlist.h
errqueue.h
execve.c
fd_to_filename.h
fpathconf.c
fstatfs64.c
fstatvfs.c
fstatvfs64.c
ftime.c
ftruncate64.c
fxstat.c
fxstat64.c
gai_sigqueue.c
getclktck.c
getcwd.c
getdents.c
getdents64.c
getdirentries.c
getdirentries64.c
getdtsz.c
gethostid.c
getloadavg.c
getpagesize.c
getpeername.S
getpriority.c
getpt.c
getsockname.S
getsockopt.S
getsysstats.c
grantpt.c
if_index.c
ifreq.h
init-first.c
internal_statvfs.c
ipc_priv.h
kernel-features.h
kernel_sigaction.h
kernel_stat.h
kernel_termios.h
ldd-rewrite.sed
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ldsodefs.h
linux_fsinfo.h
listen.S
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msgget.c
msgrcv.c
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nice.c
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ptrace.c
ptsname.c
pwrite.c
pwrite64.c
readahead.c
readdir64.c
readdir64_r.c
readv.c
reboot.c
recv.S
recvfrom.S
recvmsg.S
rt_sigaction.c
rt_sigpending.c
rt_sigprocmask.c
rt_sigqueueinfo.c
rt_sigreturn.c
rt_sigsuspend.c
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tcflow.c
tcflush.c
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tcgetpgrp.c
tcsetattr.c
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termio.h
testrtsig.h
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ttyname.c
ttyname_r.c
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clock_gettime.c
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getdents.c
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getpagesize.c
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grantpt.c
ioctls-tmpl.c
ioctls.awk
make-syscalls.sh
make_errlist.c
mk-local_lim.c
mkdir.c
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nice.c
opendir.c
readdir.c
readdir_r.c
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s-proto.S
seekdir.c
siglist.c
snarf-ioctls
sockatmark.c
start.c
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time.c
utime.c
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739d440d2a
2002-07-19 Ulrich Drepper <drepper@redhat.com> * configure.in: Add test for __thread support in compiler. * config.h.in: Add HAVE___THREAD. * Makefile (headers): Remove errno.h, sys/errno.h, and bits/errno.h. * include/sys/errno.h: Moved to... * stdlib/sys/errno.h: ...here. New file. * stdlib/errno.h: New file. Moved from... * include/errno.h: ...here. Changed into an internal header defining libc-local things like __set_errno. * stdlib/Makefile (headers): Add errno.h, sys/errno.h, and bits/errno.h. * elf/dl-minimal.c: Include <tls.h>. Define errno as thread-local variable if USE_TLS && HAVE___THREAD. Don't define __errno_location either. * elf/rtld.c (_dl_start): Add code to initialize TLS for ld.so from... (_dl_start_final): ...here. Add code to initialize tls elements from bootstrap_map. * sysdeps/generic/errno-loc.c: Define errno as thread-local variable if USE_TLS && HAVE___THREAD. * sysdeps/generic/bits/errno.h: Remove __set_errno definition. * sysdeps/mach/hurd/bits/errno.h: Likewise. * sysdeps/standalone/arm/bits/errno.h: Likewise. * sysdeps/standalone/bits/errno.h: Likewise. * sysdeps/unix/bsd/bsd4.4/bits/errno.h: Likewise. * sysdeps/unix/sysv/aix/bits/errno.h: Likewise. * sysdeps/unix/sysv/hpux/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/errno.h: Likewise. * sysdeps/unix/sysv/sysv4/solaris2/bits/errno.h: Likewise. * sysdeps/i386/dl-machine.c (elf_machine_rel) [RTLD_BOOTSTRAP]: Don't use GL(dl_rtld_map), use map parameter. * sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.S: Define errno in .tbss if USE_TLS && HAVE___THREAD. * sysdeps/unix/sysv/linux/i386/sysdep.h: Unify SETUP_PIC_REG definitions. If USE_TLS && HAVE___THREAD store errooor value using TLS code sequence. * sysdeps/unix/sysv/linux/i386/i686/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/getcwd.c: No real need to restore errno. * sysdeps/unix/sysv/linux/grantpt.c: Likewise. * sysdeps/unix/sysv/linux/internal_statvfs.c: Likewise. * sysdeps/unix/sysv/linux/msgctl.c: Likewise. * sysdeps/unix/sysv/linux/readv.c: Likewise. * sysdeps/unix/sysv/linux/writev.c: Likewise.
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/* readv supports all Linux kernels >= 2.0.
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Copyright (C) 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <stddef.h>
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#include <sys/param.h>
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#include <sys/uio.h>
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#include <sysdep.h>
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#include <sys/syscall.h>
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#include <bp-checks.h>
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extern ssize_t __syscall_readv (int, __const struct iovec *__unbounded, int);
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static ssize_t __atomic_readv_replacement (int, __const struct iovec *,
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int) internal_function;
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/* Not all versions of the kernel support the large number of records. */
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#ifndef UIO_FASTIOV
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# define UIO_FASTIOV 8 /* 8 is a safe number. */
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#endif
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/* We should deal with kernel which have a smaller UIO_FASTIOV as well
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as a very big count. */
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ssize_t
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__readv (fd, vector, count)
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int fd;
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const struct iovec *vector;
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int count;
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{
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ssize_t bytes_read;
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bytes_read = INLINE_SYSCALL (readv, 3, fd, CHECK_N (vector, count), count);
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if (bytes_read >= 0 || errno != EINVAL || count <= UIO_FASTIOV)
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return bytes_read;
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return __atomic_readv_replacement (fd, vector, count);
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}
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weak_alias (__readv, readv)
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#define __readv static internal_function __atomic_readv_replacement
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#include <sysdeps/posix/readv.c>
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