[mirror_edk2.git] / StdLib / Include / Arm / machine / asm.h

/*	$NetBSD: asm.h,v 1.8 2006/01/20 22:02:40 christos Exp $	*/\r
\r
/*\r
 * Copyright (c) 1990 The Regents of the University of California.\r
 * All rights reserved.\r
 *\r
 * This code is derived from software contributed to Berkeley by\r
 * William Jolitz.\r
 *\r
 * Redistribution and use in source and binary forms, with or without\r
 * modification, are permitted provided that the following conditions\r
 * are met:\r
 * 1. Redistributions of source code must retain the above copyright\r
 *    notice, this list of conditions and the following disclaimer.\r
 * 2. Redistributions in binary form must reproduce the above copyright\r
 *    notice, this list of conditions and the following disclaimer in the\r
 *    documentation and/or other materials provided with the distribution.\r
 * 3. Neither the name of the University nor the names of its contributors\r
 *    may be used to endorse or promote products derived from this software\r
 *    without specific prior written permission.\r
 *\r
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
 * SUCH DAMAGE.\r
 *\r
 *	from: @(#)asm.h	5.5 (Berkeley) 5/7/91\r
 */\r
\r
#ifndef _ARM32_ASM_H_\r
#define _ARM32_ASM_H_\r
\r
#ifdef __ELF__\r
# define _C_LABEL(x)	x\r
#else\r
# ifdef __STDC__\r
#  define _C_LABEL(x)	_ ## x\r
# else\r
#  define _C_LABEL(x)	_/**/x\r
# endif\r
#endif\r
#define	_ASM_LABEL(x)	x\r
\r
#ifdef __STDC__\r
# define __CONCAT(x,y)	x ## y\r
# define __STRING(x)	#x\r
#else\r
# define __CONCAT(x,y)	x/**/y\r
# define __STRING(x)	"x"\r
#endif\r
\r
#ifndef _ALIGN_TEXT\r
# define _ALIGN_TEXT .align 0\r
#endif\r
\r
/*\r
 * gas/arm uses @ as a single comment character and thus cannot be used here\r
 * Instead it recognised the # instead of an @ symbols in .type directives\r
 * We define a couple of macros so that assembly code will not be dependant\r
 * on one or the other.\r
 */\r
#define _ASM_TYPE_FUNCTION	#function\r
#define _ASM_TYPE_OBJECT	#object\r
#define _ENTRY(x) \\r
	.text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x:\r
\r
#ifdef GPROF\r
# ifdef __ELF__\r
#  define _PROF_PROLOGUE	\\r
	mov ip, lr; bl __mcount\r
# else\r
#  define _PROF_PROLOGUE	\\r
	mov ip,lr; bl mcount\r
# endif\r
#else\r
# define _PROF_PROLOGUE\r
#endif\r
\r
#define	ENTRY(y)	_ENTRY(_C_LABEL(y)); _PROF_PROLOGUE\r
#define	ENTRY_NP(y)	_ENTRY(_C_LABEL(y))\r
#define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE\r
#define	ASENTRY_NP(y)	_ENTRY(_ASM_LABEL(y))\r
\r
#define	ASMSTR		.asciz\r
\r
#if defined(__ELF__) && defined(PIC)\r
#ifdef __STDC__\r
#define	PIC_SYM(x,y)	x ## ( ## y ## )\r
#else\r
#define	PIC_SYM(x,y)	x/**/(/**/y/**/)\r
#endif\r
#else\r
#define	PIC_SYM(x,y)	x\r
#endif\r
\r
#ifdef __ELF__\r
#define RCSID(x)	.section ".ident"; .asciz x\r
#else\r
#define RCSID(x)	.text; .asciz x\r
#endif\r
\r
#ifdef __ELF__\r
#define	WEAK_ALIAS(alias,sym)						\\r
	.weak alias;							\\r
	alias = sym\r
#endif\r
\r
/*\r
 * STRONG_ALIAS: create a strong alias.\r
 */\r
#define STRONG_ALIAS(alias,sym)						\\r
	.globl alias;							\\r
	alias = sym\r
\r
#ifdef __STDC__\r
#define	WARN_REFERENCES(sym,msg)					\\r
	.stabs msg ## ,30,0,0,0 ;					\\r
	.stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0\r
#elif defined(__ELF__)\r
#define	WARN_REFERENCES(sym,msg)					\\r
	.stabs msg,30,0,0,0 ;						\\r
	.stabs __STRING(sym),1,0,0,0\r
#else\r
#define	WARN_REFERENCES(sym,msg)					\\r
	.stabs msg,30,0,0,0 ;						\\r
	.stabs __STRING(_/**/sym),1,0,0,0\r
#endif /* __STDC__ */\r
\r
#if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__)\r
#define _ARM_ARCH_6\r
#endif\r
\r
#if defined (_ARM_ARCH_6) || defined (__ARM_ARCH_5__) || \\r
    defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5TE__) || \\r
    defined (__ARM_ARCH_5TEJ__)\r
#define _ARM_ARCH_5\r
#endif\r
\r
#if defined (_ARM_ARCH_5) || defined (__ARM_ARCH_4T__)\r
#define _ARM_ARCH_4T\r
#endif\r
\r
\r
#if defined (_ARM_ARCH_4T)\r
# define RET	bx	lr\r
# ifdef __STDC__\r
#  define RETc(c) bx##c	lr\r
# else\r
#  define RETc(c) bx/**/c	lr\r
# endif\r
#else\r
# define RET	mov	pc, lr\r
# ifdef __STDC__\r
#  define RETc(c) mov##c	pc, lr\r
# else\r
#  define RETc(c) mov/**/c	pc, lr\r
# endif\r
#endif\r
\r
#endif /* !_ARM_ASM_H_ */\r
Commit	Line	Data
2aa62f2b	1	/* $NetBSD: asm.h,v 1.8 2006/01/20 22:02:40 christos Exp $ */\r
	2	\r
	3	/*\r
	4	* Copyright (c) 1990 The Regents of the University of California.\r
	5	* All rights reserved.\r
	6	*\r
	7	* This code is derived from software contributed to Berkeley by\r
	8	* William Jolitz.\r
	9	*\r
	10	* Redistribution and use in source and binary forms, with or without\r
	11	* modification, are permitted provided that the following conditions\r
	12	* are met:\r
	13	* 1. Redistributions of source code must retain the above copyright\r
	14	* notice, this list of conditions and the following disclaimer.\r
	15	* 2. Redistributions in binary form must reproduce the above copyright\r
	16	* notice, this list of conditions and the following disclaimer in the\r
	17	* documentation and/or other materials provided with the distribution.\r
	18	* 3. Neither the name of the University nor the names of its contributors\r
	19	* may be used to endorse or promote products derived from this software\r
	20	* without specific prior written permission.\r
	21	*\r
	22	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
	23	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
	24	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
	25	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
	26	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
	27	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
	28	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
	29	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
	30	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
	31	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
	32	* SUCH DAMAGE.\r
	33	*\r
	34	* from: @(#)asm.h 5.5 (Berkeley) 5/7/91\r
	35	*/\r
	36	\r
	37	#ifndef _ARM32_ASM_H_\r
	38	#define _ARM32_ASM_H_\r
	39	\r
	40	#ifdef __ELF__\r
	41	# define _C_LABEL(x) x\r
	42	#else\r
	43	# ifdef __STDC__\r
	44	# define _C_LABEL(x) _ ## x\r
	45	# else\r
	46	# define _C_LABEL(x) _/**/x\r
	47	# endif\r
	48	#endif\r
	49	#define _ASM_LABEL(x) x\r
	50	\r
	51	#ifdef __STDC__\r
	52	# define __CONCAT(x,y) x ## y\r
	53	# define __STRING(x) #x\r
	54	#else\r
	55	# define __CONCAT(x,y) x/**/y\r
	56	# define __STRING(x) "x"\r
	57	#endif\r
	58	\r
	59	#ifndef _ALIGN_TEXT\r
	60	# define _ALIGN_TEXT .align 0\r
	61	#endif\r
	62	\r
	63	/*\r
	64	* gas/arm uses @ as a single comment character and thus cannot be used here\r
65	* Instead it recognised the # instead of an @ symbols in .type directives\r
66	* We define a couple of macros so that assembly code will not be dependant\r
67	* on one or the other.\r
68	*/\r
69	#define _ASM_TYPE_FUNCTION #function\r
70	#define _ASM_TYPE_OBJECT #object\r
71	#define _ENTRY(x) \\r
72	.text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x:\r
73	\r
74	#ifdef GPROF\r
75	# ifdef __ELF__\r
76	# define _PROF_PROLOGUE \\r
77	mov ip, lr; bl __mcount\r
78	# else\r
79	# define _PROF_PROLOGUE \\r
80	mov ip,lr; bl mcount\r
81	# endif\r
82	#else\r
83	# define _PROF_PROLOGUE\r
84	#endif\r
85	\r
86	#define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE\r
87	#define ENTRY_NP(y) _ENTRY(_C_LABEL(y))\r
88	#define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE\r
89	#define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y))\r
90	\r
91	#define ASMSTR .asciz\r
92	\r
93	#if defined(__ELF__) && defined(PIC)\r
94	#ifdef __STDC__\r
95	#define PIC_SYM(x,y) x ## ( ## y ## )\r
96	#else\r
97	#define PIC_SYM(x,y) x//(//y/**/)\r
98	#endif\r
99	#else\r
100	#define PIC_SYM(x,y) x\r
101	#endif\r
102	\r
103	#ifdef __ELF__\r
104	#define RCSID(x) .section ".ident"; .asciz x\r
105	#else\r
106	#define RCSID(x) .text; .asciz x\r
107	#endif\r
108	\r
109	#ifdef __ELF__\r
110	#define WEAK_ALIAS(alias,sym) \\r
111	.weak alias; \\r
112	alias = sym\r
113	#endif\r
114	\r
115	/*\r
116	* STRONG_ALIAS: create a strong alias.\r
117	*/\r
118	#define STRONG_ALIAS(alias,sym) \\r
119	.globl alias; \\r
120	alias = sym\r
121	\r
122	#ifdef __STDC__\r
123	#define WARN_REFERENCES(sym,msg) \\r
124	.stabs msg ## ,30,0,0,0 ; \\r
125	.stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0\r
126	#elif defined(__ELF__)\r
127	#define WARN_REFERENCES(sym,msg) \\r
128	.stabs msg,30,0,0,0 ; \\r
129	.stabs __STRING(sym),1,0,0,0\r
130	#else\r
131	#define WARN_REFERENCES(sym,msg) \\r
132	.stabs msg,30,0,0,0 ; \\r
133	.stabs __STRING(_/**/sym),1,0,0,0\r
134	#endif /* __STDC__ */\r
135	\r
136	#if defined (__ARM_ARCH_6__) \|\| defined (__ARM_ARCH_6J__)\r
137	#define _ARM_ARCH_6\r
138	#endif\r
139	\r
140	#if defined (_ARM_ARCH_6) \|\| defined (__ARM_ARCH_5__) \|\| \\r
141	defined (__ARM_ARCH_5T__) \|\| defined (__ARM_ARCH_5TE__) \|\| \\r
142	defined (__ARM_ARCH_5TEJ__)\r
143	#define _ARM_ARCH_5\r
144	#endif\r
145	\r
146	#if defined (_ARM_ARCH_5) \|\| defined (__ARM_ARCH_4T__)\r
147	#define _ARM_ARCH_4T\r
148	#endif\r
149	\r
150	\r
151	#if defined (_ARM_ARCH_4T)\r
152	# define RET bx lr\r
153	# ifdef __STDC__\r
154	# define RETc(c) bx##c lr\r
155	# else\r
156	# define RETc(c) bx/**/c lr\r
157	# endif\r
158	#else\r
159	# define RET mov pc, lr\r
160	# ifdef __STDC__\r
161	# define RETc(c) mov##c pc, lr\r
162	# else\r
163	# define RETc(c) mov/**/c pc, lr\r
164	# endif\r
165	#endif\r
166	\r
167	#endif /* !_ARM_ASM_H_ */\r