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asm.h revision 1.20 
      1 /*	$NetBSD: asm.h,v 1.20 2025/01/06 10:46:43 martin Exp $	*/
      2 
      3 /*	$OpenBSD: asm.h,v 1.12 2001/03/29 02:15:57 mickey Exp $	*/
      4 
      5 /*
      6  * Copyright (c) 1990,1991,1994 The University of Utah and
      7  * the Computer Systems Laboratory (CSL).  All rights reserved.
      8  *
      9  * Permission to use, copy, modify and distribute this software is hereby
     10  * granted provided that (1) source code retains these copyright, permission,
     11  * and disclaimer notices, and (2) redistributions including binaries
     12  * reproduce the notices in supporting documentation, and (3) all advertising
     13  * materials mentioning features or use of this software display the following
     14  * acknowledgement: ``This product includes software developed by the
     15  * Computer Systems Laboratory at the University of Utah.''
     16  *
     17  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
     18  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
     19  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     20  *
     21  * CSL requests users of this software to return to csl-dist (at) cs.utah.edu any
     22  * improvements that they make and grant CSL redistribution rights.
     23  *
     24  *	Utah $Hdr: asm.h 1.8 94/12/14$
     25  */
     26 
     27 #ifndef _HPPA_ASM_H_
     28 #define _HPPA_ASM_H_
     29 
     30 #include <machine/frame.h>
     31 /*
     32  *	hppa assembler definitions
     33  */
     34 
     35 #ifdef __STDC__
     36 #define	__CONCAT(a,b)	a ## b
     37 #else
     38 #define	__CONCAT(a,b)	a/**/b
     39 #endif
     40 
     41 #define _C_LABEL(x)	x
     42 
     43 #define _ASM_LS_CHAR	!
     44 
     45 #define	_ENTRY(x) \
     46 	 ! .text ! .align 4				!\
     47 	.export x, entry ! .label x ! .proc
     48 
     49 #define	LEAF_ENTRY_NOPROFILE(x)				!\
     50 	_ENTRY(x)					!\
     51 	.callinfo frame=0, no_calls, save_rp		!\
     52 	.entry
     53 
     54 #define	ENTRY_NOPROFILE(x,n)				!\
     55 	_ENTRY(x)					!\
     56 	.callinfo frame=n, calls, save_rp, save_sp	!\
     57 	.entry
     58 
     59 #ifdef GPROF
     60 
     61 #define	_PROF_PROLOGUE				!\
     62 1:						!\
     63 	stw	%rp, HPPA_FRAME_CRP(%sp)	!\
     64 	stw	%arg0, HPPA_FRAME_ARG(0)(%sp)	!\
     65 	stw	%arg1, HPPA_FRAME_ARG(1)(%sp)	!\
     66 	stw	%arg2, HPPA_FRAME_ARG(2)(%sp)	!\
     67 	stw	%arg3, HPPA_FRAME_ARG(3)(%sp)	!\
     68 	ldo	HPPA_FRAME_SIZE(%sp), %sp	!\
     69 	copy	%rp, %arg0			!\
     70 	bl	2f, %arg1			!\
     71 	 depi	0, 31, 2, %arg1			!\
     72 2:						!\
     73 	bl	_mcount, %rp			!\
     74 	 ldo	1b - 2b(%arg1), %arg1		!\
     75 	ldo	-HPPA_FRAME_SIZE(%sp), %sp	!\
     76 	ldw	HPPA_FRAME_ARG(3)(%sp), %arg3	!\
     77 	ldw	HPPA_FRAME_ARG(2)(%sp), %arg2	!\
     78 	ldw	HPPA_FRAME_ARG(1)(%sp), %arg1	!\
     79 	ldw	HPPA_FRAME_ARG(0)(%sp), %arg0	!\
     80 	ldw	HPPA_FRAME_CRP(%sp), %rp	!\
     81 
     82 #define LEAF_ENTRY(x) 				!\
     83 	ENTRY_NOPROFILE(x,HPPA_FRAME_SIZE)	!\
     84 	_PROF_PROLOGUE
     85 
     86 #else /* GPROF */
     87 
     88 #define _PROF_PROLOGUE
     89 
     90 #define LEAF_ENTRY(x) 				!\
     91 	LEAF_ENTRY_NOPROFILE(x)
     92 
     93 #endif /* GPROF */
     94 
     95 #define ENTRY(x,n) 				!\
     96 	ENTRY_NOPROFILE(x,n)			!\
     97 	_PROF_PROLOGUE
     98 
     99 #define ALTENTRY(x) ! .export x, entry ! .label x
    100 #define EXIT(x) ! .exit ! .procend ! .size x, .-x
    101 
    102 #ifdef _NETBSD_REVISIONID
    103 #define RCSID(x)	.pushsection ".ident","MS",@progbits,1;		\
    104 			.asciz x;					\
    105 			.ascii "$"; .ascii "NetBSD: "; .ascii __FILE__;	\
    106 			.ascii " "; .ascii _NETBSD_REVISIONID;		\
    107 			.asciz " $";					\
    108 			.popsection
    109 #else
    110 #define RCSID(x)	.pushsection ".ident","MS",@progbits,1;		\
    111 			.asciz x;					\
    112 			.popsection
    113 #endif
    114 
    115 #define WEAK_ALIAS(alias,sym)				\
    116 	.weak alias !					\
    117 	alias = sym
    118 
    119 /*
    120  * STRONG_ALIAS: create a strong alias.
    121  */
    122 #define STRONG_ALIAS(alias,sym)				\
    123 	.globl alias !					\
    124 	alias = sym
    125 
    126 #define CALL(func,tmp)					!\
    127 	ldil	L%func, tmp				!\
    128 	ldo	R%func(tmp), tmp			!\
    129 	.call						!\
    130 	blr	%r0, %rp				!\
    131 	bv,n	%r0(tmp)				!\
    132 	nop
    133 
    134 #ifdef __PIC__
    135 #define PIC_CALL(func)					!\
    136 	addil	LT%func, %r19				!\
    137 	ldw	RT%func(%r1), %r1			!\
    138 	.call						!\
    139 	blr	%r0, %rp				!\
    140 	bv,n	%r0(%r1)				!\
    141 	nop
    142 #else
    143 #define PIC_CALL(func)					!\
    144 	CALL(func,%r1)
    145 #endif
    146 
    147 #ifdef __STDC__
    148 #define	WARN_REFERENCES(sym,msg)					\
    149 	.pushsection .gnu.warning. ## sym;				\
    150 	.ascii msg;							\
    151 	.popsection
    152 #else
    153 #define	WARN_REFERENCES(sym,msg)					\
    154 	.pushsection .gnu.warning./**/sym;				\
    155 	.ascii msg;							\
    156 	.popsection
    157 #endif /* __STDC__ */
    158 
    159 #define	BSS(n,s)	.comm n, s
    160 #define	SZREG	4
    161 
    162 #endif /* _HPPA_ASM_H_ */
    163