revert linuxthreads to pre rev 11377 (i.e. before the massive attempt to import glibc updates) while keeping the few bugfixes ... idea is to keep both old and new linuxthreads around so we can hack on the new version while delivering the old stable version to end users

1 files changed, 220 insertions, 0 deletions

diff --git a/libpthread/linuxthreads/wrapsyscall.c b/libpthread/linuxthreads/wrapsyscall.c
new file mode 100644
index 000000000..6b8a00bb5
--- /dev/null
+++ b/libpthread/linuxthreads/wrapsyscall.c
@@ -0,0 +1,220 @@
+/* Wrapper arpund system calls to provide cancelation points.
+   Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#define __FORCE_GLIBC
+#include <features.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <termios.h>
+#include <sys/resource.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <sys/syscall.h>
+
+
+#ifndef __PIC__
+/* We need a hook to force this file to be linked in when static
+   libpthread is used.  */
+const int __pthread_provide_wrappers = 0;
+#endif
+
+
+#define CANCELABLE_SYSCALL(res_type, name, param_list, params) \
+res_type __libc_##name param_list;					      \
+res_type								      \
+__attribute__ ((weak))							      \
+name param_list								      \
+{									      \
+  res_type result;							      \
+  int oldtype;								      \
+  pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &oldtype);	      \
+  result = __libc_##name params;					      \
+  pthread_setcanceltype (oldtype, NULL);				      \
+  return result;							      \
+}
+
+#define CANCELABLE_SYSCALL_VA(res_type, name, param_list, params, last_arg) \
+res_type __libc_##name param_list;					      \
+res_type								      \
+__attribute__ ((weak))							      \
+name param_list								      \
+{									      \
+  res_type result;							      \
+  int oldtype;								      \
+  va_list ap;								      \
+  pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &oldtype);	      \
+  va_start (ap, last_arg);						      \
+  result = __libc_##name params;					      \
+  va_end (ap);								      \
+  pthread_setcanceltype (oldtype, NULL);				      \
+  return result;							      \
+}
+
+
+/* close(2).  */
+CANCELABLE_SYSCALL (int, close, (int fd), (fd))
+
+
+/* fcntl(2).  */
+CANCELABLE_SYSCALL_VA (int, fcntl, (int fd, int cmd, ...),
+		       (fd, cmd, va_arg (ap, long int)), cmd)
+
+
+/* fsync(2).  */
+CANCELABLE_SYSCALL (int, fsync, (int fd), (fd))
+
+
+/* lseek(2).  */
+CANCELABLE_SYSCALL (off_t, lseek, (int fd, off_t offset, int whence),
+		    (fd, offset, whence))
+
+#ifdef __UCLIBC_HAS_LFS__
+/* lseek64(2).  */
+CANCELABLE_SYSCALL (off64_t, lseek64, (int fd, off64_t offset, int whence),
+		    (fd, offset, whence))
+#endif
+
+/* msync(2).  */
+CANCELABLE_SYSCALL (int, msync, (__ptr_t addr, size_t length, int flags),
+		    (addr, length, flags))
+
+
+/* nanosleep(2).  */
+CANCELABLE_SYSCALL (int, nanosleep, (const struct timespec *requested_time,
+				     struct timespec *remaining),
+		    (requested_time, remaining))
+
+
+/* open(2).  */
+CANCELABLE_SYSCALL_VA (int, open, (const char *pathname, int flags, ...),
+		       (pathname, flags, va_arg (ap, mode_t)), flags)
+
+
+#ifdef __UCLIBC_HAS_LFS__
+/* open64(3).  */
+CANCELABLE_SYSCALL_VA (int, open64, (const char *pathname, int flags, ...),
+		       (pathname, flags, va_arg (ap, mode_t)), flags)
+#endif
+
+/* pause(2).  */
+CANCELABLE_SYSCALL (int, pause, (void), ())
+
+
+/* Enable this if enabling these in syscalls.c */
+/* pread(3).  */
+CANCELABLE_SYSCALL (ssize_t, pread, (int fd, void *buf, size_t count,
+				     off_t offset),
+		    (fd, buf, count, offset))
+
+
+#if defined __UCLIBC_HAS_LFS__ && defined __NR_pread64
+/* pread64(3).  */
+CANCELABLE_SYSCALL (ssize_t, pread64, (int fd, void *buf, size_t count,
+				       off64_t offset),
+		    (fd, buf, count, offset))
+#endif
+
+/* pwrite(3).  */
+CANCELABLE_SYSCALL (ssize_t, pwrite, (int fd, const void *buf, size_t n,
+				      off_t offset),
+		    (fd, buf, n, offset))
+
+
+#if defined __UCLIBC_HAS_LFS__ && defined __NR_pwrited64
+/* pwrite64(3).  */
+CANCELABLE_SYSCALL (ssize_t, pwrite64, (int fd, const void *buf, size_t n,
+					off64_t offset),
+		    (fd, buf, n, offset))
+#endif
+
+/* read(2).  */
+CANCELABLE_SYSCALL (ssize_t, read, (int fd, void *buf, size_t count),
+		    (fd, buf, count))
+
+
+/* system(3).  */
+CANCELABLE_SYSCALL (int, system, (const char *line), (line))
+
+
+/* tcdrain(2).  */
+CANCELABLE_SYSCALL (int, tcdrain, (int fd), (fd))
+
+
+/* wait(2).  */
+CANCELABLE_SYSCALL (__pid_t, wait, (__WAIT_STATUS_DEFN stat_loc), (stat_loc))
+
+
+/* waitpid(2).  */
+CANCELABLE_SYSCALL (__pid_t, waitpid, (__pid_t pid, int *stat_loc,
+				       int options),
+		    (pid, stat_loc, options))
+
+
+/* write(2).  */
+CANCELABLE_SYSCALL (ssize_t, write, (int fd, const void *buf, size_t n),
+		    (fd, buf, n))
+
+
+/* The following system calls are thread cancellation points specified
+   in XNS.  */
+
+/* accept(2).  */
+CANCELABLE_SYSCALL (int, accept, (int fd, __SOCKADDR_ARG addr,
+				  socklen_t *addr_len),
+		    (fd, addr, addr_len))
+
+/* connect(2).  */
+CANCELABLE_SYSCALL (int, connect, (int fd, __CONST_SOCKADDR_ARG addr,
+				     socklen_t len),
+		    (fd, addr, len))
+
+/* recv(2).  */
+CANCELABLE_SYSCALL (ssize_t, recv, (int fd, __ptr_t buf, size_t n, int flags),
+		    (fd, buf, n, flags))
+
+/* recvfrom(2).  */
+CANCELABLE_SYSCALL (ssize_t, recvfrom, (int fd, __ptr_t buf, size_t n, int flags,
+					__SOCKADDR_ARG addr, socklen_t *addr_len),
+		    (fd, buf, n, flags, addr, addr_len))
+
+/* recvmsg(2).  */
+CANCELABLE_SYSCALL (ssize_t, recvmsg, (int fd, struct msghdr *message, int flags),
+		    (fd, message, flags))
+
+/* send(2).  */
+CANCELABLE_SYSCALL (ssize_t, send, (int fd, const __ptr_t buf, size_t n,
+				    int flags),
+		    (fd, buf, n, flags))
+
+/* sendmsg(2).  */
+CANCELABLE_SYSCALL (ssize_t, sendmsg, (int fd, const struct msghdr *message,
+				       int flags),
+		    (fd, message, flags))
+
+/* sendto(2).  */
+CANCELABLE_SYSCALL (ssize_t, sendto, (int fd, const __ptr_t buf, size_t n,
+				      int flags, __CONST_SOCKADDR_ARG addr,
+				      socklen_t addr_len),
+		    (fd, buf, n, flags, addr, addr_len))