sys/powerpc/include/asm.h

   1 /*-
   2  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
   3  * Copyright (C) 1995, 1996 TooLs GmbH.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by TooLs GmbH.
  17  * 4. The name of TooLs GmbH may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
  21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  23  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  29  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  *
  31  *      $NetBSD: asm.h,v 1.6.18.1 2000/07/25 08:37:14 kleink Exp $
  32  * $FreeBSD$
  33  */
  34
  35 #ifndef _MACHINE_ASM_H_
  36 #define _MACHINE_ASM_H_
  37
  38 #include <sys/cdefs.h>
  39
  40 #if defined(PIC) && !defined(__powerpc64__)
  41 #define PIC_PROLOGUE    XXX
  42 #define PIC_EPILOGUE    XXX
  43 #define PIC_PLT(x)      x@plt
  44 #ifdef  __STDC__
  45 #define PIC_GOT(x)      XXX
  46 #else   /* not __STDC__ */
  47 #define PIC_GOT(x)      XXX
  48 #endif  /* __STDC__ */
  49 #else
  50 #define PIC_PROLOGUE
  51 #define PIC_EPILOGUE
  52 #define PIC_PLT(x)      x
  53 #define PIC_GOT(x)      x
  54 #endif
  55
  56 #define CNAME(csym)             csym
  57 #define ASMNAME(asmsym)         asmsym
  58 #ifdef __powerpc64__
  59 #define HIDENAME(asmsym)        __CONCAT(_,asmsym)
  60 #else
  61 #define HIDENAME(asmsym)        __CONCAT(.,asmsym)
  62 #endif
  63
  64 #ifdef _KERNEL
  65 #define DOT_LABEL(name)         __CONCAT(.,name)
  66 #define TYPE_ENTRY(name)        .size   name,24; \
  67                                 .type   DOT_LABEL(name),@function; \
  68                                 .globl  DOT_LABEL(name);
  69 #define END_SIZE(name)          .size   DOT_LABEL(name),.-DOT_LABEL(name);
  70 #else /* !_KERNEL */
  71 #define DOT_LABEL(name)         __CONCAT(.L.,name)
  72 #define TYPE_ENTRY(name)        .type   name,@function;
  73 #define END_SIZE(name)          .size   name,.-DOT_LABEL(name);
  74 #endif /* _KERNEL */
  75
  76 #define _GLOBAL(name) \
  77         .data; \
  78         .p2align 2; \
  79         .globl  name; \
  80         name:
  81
  82 #ifdef __powerpc64__
  83 #define _ENTRY(name) \
  84         .section ".text"; \
  85         .p2align 2; \
  86         .globl  name; \
  87         .section ".opd","aw"; \
  88         .p2align 3; \
  89         name: \
  90         .quad   DOT_LABEL(name),.TOC.@tocbase,0; \
  91         .previous; \
  92         .p2align 4; \
  93         TYPE_ENTRY(name) \
  94 DOT_LABEL(name):
  95
  96 #define _END(name) \
  97         .long   0; \
  98         .byte   0,0,0,0,0,0,0,0; \
  99         END_SIZE(name)
 100 #else /* !__powerpc64__ */
 101 #define _ENTRY(name) \
 102         .text; \
 103         .p2align 4; \
 104         .globl  name; \
 105         .type   name,@function; \
 106         name:
 107 #define _END(name)
 108 #endif /* __powerpc64__ */
 109
 110 #if defined(PROF) || (defined(_KERNEL) && defined(GPROF))
 111 # ifdef __powerpc64__
 112 #   define      _PROF_PROLOGUE  mflr 0;                                 \
 113                                 std 3,48(1);                            \
 114                                 std 4,56(1);                            \
 115                                 std 5,64(1);                            \
 116                                 std 0,16(1);                            \
 117                                 stdu 1,-112(1);                         \
 118                                 bl _mcount;                             \
 119                                 nop;                                    \
 120                                 ld 0,112+16(1);                         \
 121                                 ld 3,112+48(1);                         \
 122                                 ld 4,112+56(1);                         \
 123                                 ld 5,112+64(1);                         \
 124                                 mtlr 0;                                 \
 125                                 addi 1,1,112
 126 # else
 127 #   define      _PROF_PROLOGUE  mflr 0; stw 0,4(1); bl _mcount
 128 # endif
 129 #else
 130 # define        _PROF_PROLOGUE
 131 #endif
 132
 133 #define ASENTRY(y)      _ENTRY(ASMNAME(y)); _PROF_PROLOGUE
 134 #define END(y)          _END(CNAME(y))
 135 #define ENTRY(y)        _ENTRY(CNAME(y)); _PROF_PROLOGUE
 136 #define GLOBAL(y)       _GLOBAL(CNAME(y))
 137
 138 #define ASENTRY_NOPROF(y)       _ENTRY(ASMNAME(y))
 139 #define ENTRY_NOPROF(y)         _ENTRY(CNAME(y))
 140
 141 #define ASMSTR          .asciz
 142
 143 #define RCSID(x)        .text; .asciz x
 144
 145 #undef __FBSDID
 146 #if !defined(lint) && !defined(STRIP_FBSDID)
 147 #define __FBSDID(s)     .ident s
 148 #else
 149 #define __FBSDID(s)     /* nothing */
 150 #endif /* not lint and not STRIP_FBSDID */
 151
 152 #define WEAK_REFERENCE(sym, alias)                              \
 153         .weak alias;                                            \
 154         .equ alias,sym
 155
 156 #ifdef __STDC__
 157 #define WARN_REFERENCES(_sym,_msg)                              \
 158         .section .gnu.warning. ## _sym ; .ascii _msg ; .text
 159 #else
 160 #define WARN_REFERENCES(_sym,_msg)                              \
 161         .section .gnu.warning./**/_sym ; .ascii _msg ; .text
 162 #endif /* __STDC__ */
 163
 164 #endif /* !_MACHINE_ASM_H_ */