diff options
Diffstat (limited to 'lib/libc/arch/arm/SYS.h')
| -rw-r--r-- | lib/libc/arch/arm/SYS.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/lib/libc/arch/arm/SYS.h b/lib/libc/arch/arm/SYS.h new file mode 100644 index 00000000000..d28f51e426d --- /dev/null +++ b/lib/libc/arch/arm/SYS.h @@ -0,0 +1,112 @@ +/* $NetBSD: SYS.h,v 1.8 2003/08/07 16:42:02 agc Exp $ */ + +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: @(#)SYS.h 5.5 (Berkeley) 5/7/91 + */ + +#include <machine/asm.h> +#include <sys/syscall.h> +#include <arm/swi.h> + +#ifdef __STDC__ +#define _CONCAT(x,y) x##y +#define SYSTRAP(x) swi SWI_OS_NETBSD | SYS_ ## x +#else +#define _CONCAT(x,y) x/**/y +#define SYSTRAP(x) swi SWI_OS_NETBSD | SYS_/**/x +#endif + +#ifdef __ELF__ +#define CERROR _C_LABEL(__cerror) +#define CURBRK _C_LABEL(__curbrk) +#else +#define CERROR _ASM_LABEL(cerror) +#define CURBRK _ASM_LABEL(curbrk) +#endif + +#define _SYSCALL_NOERROR(x,y) \ + ENTRY(x); \ + SYSTRAP(y) + +#define ALIAS(x,y) .weak y; .set y,_CONCAT(x,y); + + +#ifdef __STDC__ +#define SYSENTRY(x) \ + .weak _C_LABEL(x); \ + _C_LABEL(x) = _C_LABEL(_thread_sys_ ## x); \ + ENTRY(_thread_sys_ ## x) +#else /* ! __STDC__ */ +#define SYSENTRY(x) \ + .weak _C_LABEL(x); \ + _C_LABEL(x) = _C_LABEL(_thread_sys_/**/x); \ + ENTRY(_thread_sys_/**/x) +#endif /* ! __STDC__ */ + + +#define _SYSCALL(x, y) \ + _SYSCALL_NOERROR(x,y); \ + bcs PIC_SYM(CERROR, PLT) + +#define SYSCALL_NOERROR(x) \ + _SYSCALL_NOERROR(x,x) + +#define SYSCALL(x) \ + _SYSCALL(x,x) + + +#define PSEUDO_NOERROR(x,y) \ + _SYSCALL_NOERROR(x,y); \ + mov r15, r14 + +#define PSEUDO(x,y) \ + _SYSCALL(x,y); \ + mov r15, r14 + + +#define RSYSCALL_NOERROR(x) \ + PSEUDO_NOERROR(x,x) + +#define RSYSCALL(x) \ + PSEUDO(x,x) + +#ifdef WEAK_ALIAS +#define WSYSCALL(weak,strong) \ + WEAK_ALIAS(weak,strong); \ + PSEUDO(strong,weak) +#else +#define WSYSCALL(weak,strong) \ + PSEUDO(weak,weak) +#endif + + .globl CERROR |