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215dbbb150
* Makerules (sed-remove-objpfx): Avoid extra space in regexp due to continuation line. * sysdeps/unix/sysv/linux/i386/socket.S: Fix off-by-one error in setting %ecx to 2nd syscall arg: we have pushed nothing, so function args are found at 4(%esp), not 8(%esp).
62 lines
1.9 KiB
ArmAsm
62 lines
1.9 KiB
ArmAsm
/* Copyright (C) 1995, 1996 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <sysdep.h>
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#include <sys/socketcall.h>
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#define P(a, b) P2(a, b)
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#define P2(a, b) a##b
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.text
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SYSCALL_ERROR_HANDLER
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/* The socket-oriented system calls are handled unusally in Linux.
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They are all gated through the single `socketcall' system call number.
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`socketcall' takes two arguments: the first is the subcode, specifying
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which socket function is being called; and the second is a pointer to
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the arguments to the specific function.
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The .S files for the other calls just #define socket and #include this. */
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.globl P(__,socket)
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ENTRY (P(__,socket))
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/* Save registers. */
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movl %ebx, %edx
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movl $SYS_ify(socketcall), %eax /* System call number in %eax. */
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/* Use ## so `socket' is a separate token that might be #define'd. */
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movl $P(SOCKOP_,socket), %ebx /* Subcode is first arg to syscall. */
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lea 4(%esp), %ecx /* Address of args is 2nd arg. */
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/* Do the system call trap. */
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int $0x80
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/* Restore registers. */
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movl %edx, %ebx
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/* %eax is < 0 if there was an error. */
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testl %eax, %eax
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jl syscall_error
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/* Successful; return the syscall's value. */
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ret
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weak_alias (P(__,socket), socket)
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