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authorEric Andersen <andersen@codepoet.org>2002-02-21 22:49:04 +0000
committerEric Andersen <andersen@codepoet.org>2002-02-21 22:49:04 +0000
commita8021309c2cb8c1e65ba2d624e3b8ed3995fc674 (patch)
treeb96ff8e70cb7f57be773ec5b29af086bb809b0be /libpthread/linuxthreads/wrapsyscall.c
parentc8d33f8c0218ae185dbd5e2f802f87330b4c6125 (diff)
Let the large file stuff be cancelable
Diffstat (limited to 'libpthread/linuxthreads/wrapsyscall.c')
-rw-r--r--libpthread/linuxthreads/wrapsyscall.c80
1 files changed, 66 insertions, 14 deletions
diff --git a/libpthread/linuxthreads/wrapsyscall.c b/libpthread/linuxthreads/wrapsyscall.c
index 3b9ada160..a891d94d4 100644
--- a/libpthread/linuxthreads/wrapsyscall.c
+++ b/libpthread/linuxthreads/wrapsyscall.c
@@ -1,5 +1,5 @@
/* Wrapper arpund system calls to provide cancelation points.
- Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+ 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.
@@ -43,6 +43,7 @@ const int __pthread_provide_wrappers = 0;
#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; \
@@ -56,6 +57,7 @@ name param_list \
#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; \
@@ -72,11 +74,13 @@ name param_list \
/* close(2). */
CANCELABLE_SYSCALL (int, close, (int fd), (fd))
+strong_alias (close, __close)
/* fcntl(2). */
CANCELABLE_SYSCALL_VA (int, fcntl, (int fd, int cmd, ...),
(fd, cmd, va_arg (ap, long int)), cmd)
+strong_alias (fcntl, __fcntl)
/* fsync(2). */
@@ -86,13 +90,18 @@ CANCELABLE_SYSCALL (int, fsync, (int fd), (fd))
/* lseek(2). */
CANCELABLE_SYSCALL (off_t, lseek, (int fd, off_t offset, int whence),
(fd, offset, whence))
+strong_alias (lseek, __lseek)
+#ifdef __UCLIBC_HAVE_LFS__
+/* lseek64(2). */
+CANCELABLE_SYSCALL (off64_t, lseek64, (int fd, off64_t offset, int whence),
+ (fd, offset, whence))
+#endif
/* msync(2). */
-/* This syscall not implemented in uClibc
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,
@@ -103,25 +112,65 @@ CANCELABLE_SYSCALL (int, nanosleep, (const struct timespec *requested_time,
/* open(2). */
CANCELABLE_SYSCALL_VA (int, open, (const char *pathname, int flags, ...),
(pathname, flags, va_arg (ap, mode_t)), flags)
+strong_alias (open, __open)
+
+#ifdef __UCLIBC_HAVE_LFS__
+/* open64(3). */
+CANCELABLE_SYSCALL_VA (int, open64, (const char *pathname, int flags, ...),
+ (pathname, flags, va_arg (ap, mode_t)), flags)
+strong_alias (open64, __open64)
+#endif
/* pause(2). */
CANCELABLE_SYSCALL (int, pause, (void), ())
+/* pread(3). */
+CANCELABLE_SYSCALL (ssize_t, pread, (int fd, void *buf, size_t count,
+ off_t offset),
+ (fd, buf, count, offset))
+
+
+#ifdef __UCLIBC_HAVE_LFS__
+/* pread64(3). */
+CANCELABLE_SYSCALL (ssize_t, pread64, (int fd, void *buf, size_t count,
+ off64_t offset),
+ (fd, buf, count, offset))
+strong_alias (pread64, __pread64)
+#endif
+
+/* pwrite(3). */
+CANCELABLE_SYSCALL (ssize_t, pwrite, (int fd, const void *buf, size_t n,
+ off_t offset),
+ (fd, buf, n, offset))
+
+
+#ifdef __UCLIBC_HAVE_LFS__
+/* pwrite64(3). */
+CANCELABLE_SYSCALL (ssize_t, pwrite64, (int fd, const void *buf, size_t n,
+ off64_t offset),
+ (fd, buf, n, offset))
+strong_alias (pwrite64, __pwrite64)
+#endif
+
/* read(2). */
CANCELABLE_SYSCALL (ssize_t, read, (int fd, void *buf, size_t count),
(fd, buf, count))
+strong_alias (read, __read)
/* 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))
+strong_alias (wait, __wait)
/* waitpid(2). */
@@ -133,6 +182,7 @@ CANCELABLE_SYSCALL (__pid_t, waitpid, (__pid_t pid, int *stat_loc,
/* write(2). */
CANCELABLE_SYSCALL (ssize_t, write, (int fd, const void *buf, size_t n),
(fd, buf, n))
+strong_alias (write, __write)
/* The following system calls are thread cancellation points specified
@@ -147,32 +197,34 @@ CANCELABLE_SYSCALL (int, accept, (int fd, __SOCKADDR_ARG addr,
CANCELABLE_SYSCALL (int, connect, (int fd, __CONST_SOCKADDR_ARG addr,
socklen_t len),
(fd, addr, len))
+strong_alias (connect, __connect)
/* recv(2). */
-CANCELABLE_SYSCALL (int, recv, (int fd, __ptr_t buf, size_t n, int flags),
+CANCELABLE_SYSCALL (ssize_t, recv, (int fd, __ptr_t buf, size_t n, int flags),
(fd, buf, n, flags))
/* recvfrom(2). */
-CANCELABLE_SYSCALL (int, recvfrom, (int fd, __ptr_t buf, size_t n, int flags,
- __SOCKADDR_ARG addr, socklen_t *addr_len),
+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 (int, recvmsg, (int fd, struct msghdr *message, int flags),
+CANCELABLE_SYSCALL (ssize_t, recvmsg, (int fd, struct msghdr *message, int flags),
(fd, message, flags))
/* send(2). */
-CANCELABLE_SYSCALL (int, send, (int fd, const __ptr_t buf, size_t n,
- int flags),
+CANCELABLE_SYSCALL (ssize_t, send, (int fd, const __ptr_t buf, size_t n,
+ int flags),
(fd, buf, n, flags))
+strong_alias (send, __send)
/* sendmsg(2). */
-CANCELABLE_SYSCALL (int, sendmsg, (int fd, const struct msghdr *message,
- int flags),
+CANCELABLE_SYSCALL (ssize_t, sendmsg, (int fd, const struct msghdr *message,
+ int flags),
(fd, message, flags))
/* sendto(2). */
-CANCELABLE_SYSCALL (int, sendto, (int fd, const __ptr_t buf, size_t n,
- int flags, __CONST_SOCKADDR_ARG addr,
- socklen_t addr_len),
+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))