2 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
3 * Copyright (C) 1995, 1996 TooLs GmbH.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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.
31 * $NetBSD: asm.h,v 1.6.18.1 2000/07/25 08:37:14 kleink Exp $
35 #ifndef _MACHINE_ASM_H_
36 #define _MACHINE_ASM_H_
38 #include <sys/cdefs.h>
40 #if defined(PIC) && !defined(__powerpc64__)
41 #define PIC_PROLOGUE XXX
42 #define PIC_EPILOGUE XXX
43 #define PIC_PLT(x) x@plt
45 #define PIC_GOT(x) XXX
46 #else /* not __STDC__ */
47 #define PIC_GOT(x) XXX
56 #define CNAME(csym) csym
57 #define ASMNAME(asmsym) asmsym
59 #define HIDENAME(asmsym) __CONCAT(_,asmsym)
61 #define HIDENAME(asmsym) __CONCAT(.,asmsym)
64 #if !defined(_CALL_ELF) || _CALL_ELF == 1
66 /* ELFv1 kernel uses global dot symbols */
67 #define DOT_LABEL(name) __CONCAT(.,name)
68 #define TYPE_ENTRY(name) .size name,24; \
69 .type DOT_LABEL(name),@function; \
70 .globl DOT_LABEL(name);
71 #define END_SIZE(name) .size DOT_LABEL(name),.-DOT_LABEL(name);
73 /* ELFv1 user code uses local function entry points */
74 #define DOT_LABEL(name) __CONCAT(.L.,name)
75 #define TYPE_ENTRY(name) .type name,@function;
76 #define END_SIZE(name) .size name,.-DOT_LABEL(name);
79 /* ELFv2 doesn't have any of this complication */
80 #define DOT_LABEL(name) name
81 #define TYPE_ENTRY(name) .type name,@function;
82 #define END_SIZE(name) .size name,.-DOT_LABEL(name);
85 #define _GLOBAL(name) \
92 #define TOC_NAME_FOR_REF(name) __CONCAT(.L,name)
93 #define TOC_REF(name) TOC_NAME_FOR_REF(name)@toc
94 #define TOC_ENTRY(name) \
95 .section ".toc","aw"; \
96 TOC_NAME_FOR_REF(name): \
102 #if !defined(_CALL_ELF) || _CALL_ELF == 1
103 #define _ENTRY(name) \
107 .section ".opd","aw"; \
110 .quad DOT_LABEL(name),.TOC.@tocbase,0; \
116 #define _ENTRY(name) \
120 .type name,@function; \
122 addis %r2, %r12, (.TOC.-name)@ha; \
123 addi %r2, %r2, (.TOC.-name)@l; \
124 .localentry name, .-name;
129 .byte 0,0,0,0,0,0,0,0; \
132 #define LOAD_ADDR(reg, var) \
133 lis reg, var@highest; \
134 ori reg, reg, var@higher; \
135 rldicr reg, reg, 32, 31; \
136 oris reg, reg, var@h; \
138 #else /* !__powerpc64__ */
139 #define _ENTRY(name) \
143 .type name,@function; \
147 #define LOAD_ADDR(reg, var) \
150 #endif /* __powerpc64__ */
152 #if defined(PROF) || (defined(_KERNEL) && defined(GPROF))
153 # ifdef __powerpc64__
154 # define _PROF_PROLOGUE mflr 0; \
169 # define _PROF_PROLOGUE mflr 0; stw 0,4(1); bl _mcount
172 # define _PROF_PROLOGUE
175 #define ASENTRY(y) _ENTRY(ASMNAME(y)); _PROF_PROLOGUE
176 #define END(y) _END(CNAME(y))
177 #define ENTRY(y) _ENTRY(CNAME(y)); _PROF_PROLOGUE
178 #define GLOBAL(y) _GLOBAL(CNAME(y))
180 #define ASENTRY_NOPROF(y) _ENTRY(ASMNAME(y))
181 #define ENTRY_NOPROF(y) _ENTRY(CNAME(y))
183 #define ASMSTR .asciz
185 #define RCSID(x) .text; .asciz x
188 #if !defined(lint) && !defined(STRIP_FBSDID)
189 #define __FBSDID(s) .ident s
191 #define __FBSDID(s) /* nothing */
192 #endif /* not lint and not STRIP_FBSDID */
194 #define WEAK_REFERENCE(sym, alias) \
199 #define WARN_REFERENCES(_sym,_msg) \
200 .section .gnu.warning. ## _sym ; .ascii _msg ; .text
202 #define WARN_REFERENCES(_sym,_msg) \
203 .section .gnu.warning./**/_sym ; .ascii _msg ; .text
204 #endif /* __STDC__ */
206 #endif /* !_MACHINE_ASM_H_ */