diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2002-12-15 10:26:23 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2002-12-15 10:26:23 +0000 |
| commit | 6ee8d3345646ab0bea91891362a2bbf15503edec (patch) | |
| tree | 718ea6deebec61e44b09eb25817ee5c14da35f57 /sysdeps/unix/sysv/linux/i386/socket.S | |
| parent | 2fb6444dbb9672aea7766b3790a3cb70a73473d3 (diff) | |
| download | glibc-6ee8d3345646ab0bea91891362a2bbf15503edec.zip glibc-6ee8d3345646ab0bea91891362a2bbf15503edec.tar.gz glibc-6ee8d3345646ab0bea91891362a2bbf15503edec.tar.bz2 | |
Update.
2002-12-15 Ulrich Drepper <drepper@redhat.com>
* sysdeps/generic/sysdep-cancel.h: Add dummy definitions for
SINGLE_THREAD_P, LIBC_CANCEL_ASYNC, and LIBC_CANCEL_RESET.
* sysdeps/unix/sysv/linux/open64.c: New file.
* sysdeps/generic/pselect.c: Add support for cancellation handling.
* sysdeps/posix/open64.c: Likewise.
* sysdeps/posix/sigpause.c: Likewise.
* sysdeps/posix/sigwait.c: Likewise.
* sysdeps/posix/system.c: Likewise.
* sysdeps/posix/waitid.c: Likewise.
* sysdeps/unix/sysv/linux/accept.S: Likewise.
* sysdeps/unix/sysv/linux/connect.S: Likewise.
* sysdeps/unix/sysv/linux/llseek.c: Likewise.
* sysdeps/unix/sysv/linux/msgrcv.c: Likewise.
* sysdeps/unix/sysv/linux/msgsnd.c: Likewise.
* 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/readv.c: Likewise.
* sysdeps/unix/sysv/linux/recv.S: Likewise.
* sysdeps/unix/sysv/linux/recvfrom.S: Likewise.
* sysdeps/unix/sysv/linux/recvmsg.S: Likewise.
* sysdeps/unix/sysv/linux/send.S: Likewise.
* sysdeps/unix/sysv/linux/sendmsg.S: Likewise.
* sysdeps/unix/sysv/linux/sendto.S: Likewise.
* sysdeps/unix/sysv/linux/sigsuspend.c: Likewise.
* sysdeps/unix/sysv/linux/sigtimedwait.c: Likewise.
* sysdeps/unix/sysv/linux/sigwait.c: Likewise.
* sysdeps/unix/sysv/linux/sigwaitinfo.c: Likewise.
* sysdeps/unix/sysv/linux/tcdrain.c: Likewise.
* sysdeps/unix/sysv/linux/wait.c: Likewise.
* sysdeps/unix/sysv/linux/waitpid.c: Likewise.
* sysdeps/unix/sysv/linux/writev.c: Likewise.
* sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise.
* sysdeps/unix/sysv/linux/i386/socket.S: Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/socket.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/socket.S | 56 |
1 files changed, 49 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/socket.S b/sysdeps/unix/sysv/linux/i386/socket.S index d060792..866a674 100644 --- a/sysdeps/unix/sysv/linux/i386/socket.S +++ b/sysdeps/unix/sysv/linux/i386/socket.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1996, 1997, 1998, 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -16,8 +16,9 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <sysdep.h> +#include <sysdep-cancel.h> #include <socketcall.h> +#include <tls.h> #define P(a, b) P2(a, b) #define P2(a, b) a##b @@ -32,15 +33,19 @@ The .S files for the other calls just #define socket and #include this. */ #ifndef __socket -#ifndef NO_WEAK_ALIAS -#define __socket P(__,socket) -#else -#define __socket socket -#endif +# ifndef NO_WEAK_ALIAS +# define __socket P(__,socket) +# else +# define __socket socket +# endif #endif .globl __socket ENTRY (__socket) +#if defined NEED_CANCELLATION && defined CENABLE + cmpl $0, %gs:MULTIPLE_THREADS_OFFSET + jne 1f +#endif /* Save registers. */ movl %ebx, %edx @@ -65,6 +70,43 @@ ENTRY (__socket) L(pseudo_end): ret + +#if defined NEED_CANCELLATION && defined CENABLE + /* We need one more register. */ +1: pushl %esi + + /* Enable asynchronous cancellation. */ + call __libc_enable_asynccancel /* No @plt */ + movl %eax, %esi + + /* Save registers. */ + movl %ebx, %edx + + movl $SYS_ify(socketcall), %eax /* System call number in %eax. */ + + /* Use ## so `socket' is a separate token that might be #define'd. */ + movl $P(SOCKOP_,socket), %ebx /* Subcode is first arg to syscall. */ + lea 8(%esp), %ecx /* Address of args is 2nd arg. */ + + /* Do the system call trap. */ + int $0x80 + + /* Restore the cancellation. */ + xchgl %esi, %eax + call __libc_disable_asynccancel /* No @plt */ + + /* Restore registers. */ + movl %esi, %eax + movl %edx, %ebx + popl %esi + + /* %eax is < 0 if there was an error. */ + cmpl $-125, %eax + jae SYSCALL_ERROR_LABEL + + /* Successful; return the syscall's value. */ + ret +#endif PSEUDO_END (__socket) #ifndef NO_WEAK_ALIAS |