1 /* $NetBSD: asm.h,v 1.5 2003/08/07 16:26:53 agc Exp $ */
4 * Copyright (c) 1990 The Regents of the University of California.
7 * This code is derived from software contributed to Berkeley by
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34 * from: @(#)asm.h 5.5 (Berkeley) 5/7/91
39 #ifndef _MACHINE_ASM_H_
40 #define _MACHINE_ASM_H_
41 #include <sys/cdefs.h>
44 # define _C_LABEL(x) x
47 # define _C_LABEL(x) _ ## x
49 # define _C_LABEL(x) _/**/x
52 #define _ASM_LABEL(x) x
54 #ifndef _JB_MAGIC__SETJMP
55 #define _JB_MAGIC__SETJMP 0x4278f500
56 #define _JB_MAGIC_SETJMP 0x4278f501
59 #define I32_bit (1 << 7) /* IRQ disable */
60 #define F32_bit (1 << 6) /* FIQ disable */
62 #define CPU_CONTROL_32BP_ENABLE 0x00000010 /* P: 32-bit exception handlers */
63 #define CPU_CONTROL_32BD_ENABLE 0x00000020 /* D: 32-bit addressing */
66 # define _ALIGN_TEXT .align 0
70 * gas/arm uses @ as a single comment character and thus cannot be used here
71 * Instead it recognised the # instead of an @ symbols in .type directives
72 * We define a couple of macros so that assembly code will not be dependant
73 * on one or the other.
75 #define _ASM_TYPE_FUNCTION #function
76 #define _ASM_TYPE_OBJECT #object
77 #define GLOBAL(X) .globl x
79 .text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x:
82 # define _PROF_PROLOGUE \
83 mov ip, lr; bl __mcount
85 # define _PROF_PROLOGUE
88 #define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
89 #define ENTRY_NP(y) _ENTRY(_C_LABEL(y))
90 #define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
91 #define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y))
95 #if defined(__ELF__) && defined(PIC)
97 #define PIC_SYM(x,y) x ## ( ## y ## )
99 #define PIC_SYM(x,y) x/**/(/**/y/**/)
102 #define PIC_SYM(x,y) x
106 #if !defined(lint) && !defined(STRIP_FBSDID)
107 #define __FBSDID(s) .ident s
109 #define __FBSDID(s) /* nothing */
114 #define WEAK_ALIAS(alias,sym) \
120 #define WARN_REFERENCES(sym,msg) \
121 .stabs msg ## ,30,0,0,0 ; \
122 .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
123 #elif defined(__ELF__)
124 #define WARN_REFERENCES(sym,msg) \
125 .stabs msg,30,0,0,0 ; \
126 .stabs __STRING(sym),1,0,0,0
128 #define WARN_REFERENCES(sym,msg) \
129 .stabs msg,30,0,0,0 ; \
130 .stabs __STRING(_/**/sym),1,0,0,0
131 #endif /* __STDC__ */
134 #if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__)
138 #if defined (_ARM_ARCH_6) || defined (__ARM_ARCH_5__) || \
139 defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5TE__) || \
140 defined (__ARM_ARCH_5TEJ__) || defined (__ARM_ARCH_5E__)
144 #if defined (_ARM_ARCH_6) || defined(__ARM_ARCH_5TE__) || \
145 defined(__ARM_ARCH_5TEJ__) || defined(__ARM_ARCH_5E__)
149 #if defined (_ARM_ARCH_5) || defined (__ARM_ARCH_4T__)
154 #if defined (_ARM_ARCH_4T)
156 # define RETeq bxeq lr
157 # define RETne bxne lr
159 # define RETc(c) bx##c lr
161 # define RETc(c) bx/**/c lr
164 # define RET mov pc, lr
165 # define RETeq moveq pc, lr
166 # define RETne movne pc, lr
168 # define RETc(c) mov##c pc, lr
170 # define RETc(c) mov/**/c pc, lr
174 #endif /* !_MACHINE_ASM_H_ */