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Diffstat (limited to 'sys/arch/sparc/include/asm.h')
| -rw-r--r-- | sys/arch/sparc/include/asm.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/sys/arch/sparc/include/asm.h b/sys/arch/sparc/include/asm.h new file mode 100644 index 00000000000..4241a44caa5 --- /dev/null +++ b/sys/arch/sparc/include/asm.h @@ -0,0 +1,102 @@ +/* $NetBSD: asm.h,v 1.3 1994/11/20 20:52:51 deraadt Exp $ */ + +/* + * Copyright (c) 1994 Allen Briggs + * All rights reserved. + * + * Gleaned from locore.s and sun3 asm.h which had the following copyrights: + * locore.s: + * Copyright (c) 1988 University of Utah. + * Copyright (c) 1982, 1990 The Regents of the University of California. + * sun3/include/asm.h: + * Copyright (c) 1993 Adam Glass + * Copyright (c) 1990 The Regents of the University of California. + * + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. 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. + */ + +#ifndef _ASM_H_ +#define _ASM_H_ + +#ifdef __STDC__ +#define _C_LABEL(name) _ ## name +#else +#define _C_LABEL(name) _/**/name +#endif +#define _ASM_LABEL(name) name + +#ifdef PIC +/* + * PIC_PROLOGUE() is akin to the compiler generated function prologue for + * PIC code. It leaves the address of the Global Offset Table in DEST, + * clobbering register TMP in the process. Using the temporary enables us + * to work without a stack frame (doing so requires saving %o7) . + */ +#define PIC_PROLOGUE(dest,tmp) \ + mov %o7,tmp; 3: call 4f; nop; 4: \ + sethi %hi(__GLOBAL_OFFSET_TABLE_-(3b-.)),dest; \ + or dest,%lo(__GLOBAL_OFFSET_TABLE_-(3b-.)),dest; \ + add dest,%o7,dest; mov tmp,%o7 + +/* + * PICCY_SET() does the equivalent of a `set var, %dest' instruction in + * a PIC-like way, but without involving the Global Offset Table. This + * only works for VARs defined in the same file *and* in the text segment. + */ +#define PICCY_SET(var,dest,tmp) \ + mov %o7,tmp; 3: call 4f; nop; 4: \ + add %o7,(var-3b),dest; mov tmp,%o7 +#else +#define PIC_PROLOGUE(dest,tmp) +#define PICCY_OFFSET(var,dest,tmp) +#endif + +#define FTYPE(x) .type x,@function +#define OTYPE(x) .type x,@object + +#define _ENTRY(name) \ + .align 4; .globl name; .proc 1; FTYPE(name); name: + +#ifdef PROF +#define _PROF_PROLOGUE \ + .data; .align 4; 1: .long 0; \ + .text; save %sp,-96,%sp; sethi %hi(1b),%o0; call mcount; \ + or %o0,%lo(1b),%o0; restore +#else +#define _PROF_PROLOGUE +#endif + +#define ENTRY(name) _ENTRY(_C_LABEL(name)); _PROF_PROLOGUE +#define ASENTRY(name) _ENTRY(_ASM_LABEL(name)); _PROF_PROLOGUE +#define FUNC(name) ASENTRY(name) + + +#define ASMSTR .asciz + +#endif /* _ASM_H_ */ |