remove linuxthreads.new, rename linuxthreads.old

Linuxthreads.new isn't really useful with the existence
of NPTL/TLS for well supported architectures. There is no
reason to use LT.new for ARM/MIPS or other architectures
supporting NPTL/TLS. It is not available for noMMU architectures
like Blackfin or FR-V. To simplify the live of the few uClibc-ng
developers, LT.new is removed and LT.old is renamed to LT.
LINUXTHREADS_OLD -> UCLIBC_HAS_LINUXTHREADS

1 files changed, 246 insertions, 0 deletions

diff --git a/libpthread/linuxthreads/wrapsyscall.c b/libpthread/linuxthreads/wrapsyscall.c
new file mode 100644
index 000000000..668b3911c
--- /dev/null
+++ b/libpthread/linuxthreads/wrapsyscall.c
@@ -0,0 +1,246 @@
+/* Wrapper around system calls to provide cancellation 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,
+   see <http://www.gnu.org/licenses/>.  */
+
+#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/epoll.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 char __pthread_provide_wrappers = 0;
+#endif
+
+/* Using private interface to libc (__libc_foo) to implement
+ * cancellable versions of some libc functions */
+#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)
+
+#if defined __UCLIBC_HAS_LFS__ && __WORDSIZE == 32
+/* fcntl64(2).  */
+CANCELABLE_SYSCALL_VA (int, fcntl64, (int fd, int cmd, ...),
+		       (fd, cmd, va_arg (ap, long int)), cmd)
+#endif
+
+
+/* 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
+
+#if defined(__NR_msync) && defined(__ARCH_USE_MMU__)
+
+/* msync(2).  */
+CANCELABLE_SYSCALL (int, msync, (void *addr, size_t length, int flags),
+		    (addr, length, flags))
+#endif
+
+
+/* nanosleep(2).  */
+libpthread_hidden_proto(nanosleep)
+CANCELABLE_SYSCALL (int, nanosleep, (const struct timespec *requested_time,
+				     struct timespec *remaining),
+		    (requested_time, remaining))
+libpthread_hidden_def(nanosleep)
+
+
+/* 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).  */
+libpthread_hidden_proto(waitpid)
+CANCELABLE_SYSCALL (__pid_t, waitpid, (__pid_t pid, int *stat_loc,
+				       int options),
+		    (pid, stat_loc, options))
+libpthread_hidden_def(waitpid)
+
+
+/* write(2).  */
+CANCELABLE_SYSCALL (ssize_t, write, (int fd, const void *buf, size_t n),
+		    (fd, buf, n))
+
+#if defined __UCLIBC_HAS_SOCKET__
+/* 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))
+#endif /* __UCLIBC_HAS_SOCKET__ */
+
+#ifdef  __UCLIBC_HAS_EPOLL__
+# include <sys/epoll.h>
+# ifdef __NR_epoll_wait
+CANCELABLE_SYSCALL (int, epoll_wait, (int epfd, struct epoll_event *events, int maxevents, int timeout),
+		    (epfd, events, maxevents, timeout))
+# endif
+# ifdef __NR_epoll_pwait
+CANCELABLE_SYSCALL (int, epoll_pwait, (int epfd, struct epoll_event *events, int maxevents, int timeout,
+				       const sigset_t *set),
+		    (epfd, events, maxevents, timeout, set))
+# endif
+#endif