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jeremybenn |
/* libc/sys/linux/machine/i386/socketcall.h - x86 linux socket system calls */
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/* Copyright 2002, Red Hat Inc. */
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#ifndef _SOCKETCALL_H
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#define _SOCKETCALL_H
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#include <machine/weakalias.h>
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#include <sys/errno.h>
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#include <asm/unistd.h>
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#include "sockops.h"
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/*
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* PIC uses %ebx, so we need to save it during system calls
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*/
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#ifdef __syscall_return
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#define __sockcall_base(type, name) \
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{ \
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long __res; \
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__asm__ volatile ("push %%ebx; movl %2,%%ebx; lea 8(%%ebp),%%ecx; int $0x80; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_socketcall),"r" (SOCK_##name)); \
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__syscall_return(type,__res); \
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}
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#else /* !defined(__syscall_return) */
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/* FIXME: we need to rewrite this for a vsyscall system. */
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#define __syscall_return(type, res) \
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do { \
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if ((unsigned long)(res) >= (unsigned long)(-125)) { \
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errno = -(res); \
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res = -1; \
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} \
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return (type) (res); \
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} while (0)
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#define __sockcall_base(type, name) \
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{ \
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long __res; \
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__asm__ volatile ("push %%ebx; movl %2,%%ebx; lea 8(%%ebp),%%ecx; int $0x80; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_socketcall),"r" (SOCK_##name)); \
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__syscall_return(type,__res); \
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}
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#endif /* !defined(__syscall_return) */
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#undef _sockcall1
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#define _sockcall1(type,name,type1,arg1) \
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type __libc_##name(type1 arg1) \
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__sockcall_base(type,name) \
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weak_alias(__libc_##name,name)
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#undef _sockcall2
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#define _sockcall2(type,name,type1,arg1,type2,arg2) \
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type __libc_##name(type1 arg1, type2 arg2) \
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__sockcall_base(type,name) \
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weak_alias(__libc_##name,name)
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#undef _sockcall3
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#define _sockcall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
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type __libc_##name(type1 arg1, type2 arg2, type3 arg3) \
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__sockcall_base(type,name) \
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weak_alias(__libc_##name,name)
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#undef _sockcall4
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#define _sockcall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
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type __libc_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
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__sockcall_base(type,name) \
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weak_alias(__libc_##name,name)
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#undef _sockcall5
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#define _sockcall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
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type __libc_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
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__sockcall_base(type,name) \
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weak_alias(__libc_##name,name)
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#undef _sockcall6
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#define _sockcall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
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type __libc_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
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__sockcall_base(type,name) \
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weak_alias(__libc_##name,name)
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#endif /* _SOCKETCALL_H */
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