1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #ifndef _SYS_ASM_LINKAGE_H 28*7c478bd9Sstevel@tonic-gate #define _SYS_ASM_LINKAGE_H 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*7c478bd9Sstevel@tonic-gate 32*7c478bd9Sstevel@tonic-gate #include <sys/stack.h> 33*7c478bd9Sstevel@tonic-gate #include <sys/trap.h> 34*7c478bd9Sstevel@tonic-gate 35*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 36*7c478bd9Sstevel@tonic-gate extern "C" { 37*7c478bd9Sstevel@tonic-gate #endif 38*7c478bd9Sstevel@tonic-gate 39*7c478bd9Sstevel@tonic-gate #ifdef _ASM /* The remainder of this file is only for assembly files */ 40*7c478bd9Sstevel@tonic-gate 41*7c478bd9Sstevel@tonic-gate /* 42*7c478bd9Sstevel@tonic-gate * C pointers are different sizes between V8 and V9. 43*7c478bd9Sstevel@tonic-gate * These constants can be used to compute offsets into pointer arrays. 44*7c478bd9Sstevel@tonic-gate */ 45*7c478bd9Sstevel@tonic-gate #ifdef __sparcv9 46*7c478bd9Sstevel@tonic-gate #define CPTRSHIFT 3 47*7c478bd9Sstevel@tonic-gate #define CLONGSHIFT 3 48*7c478bd9Sstevel@tonic-gate #else 49*7c478bd9Sstevel@tonic-gate #define CPTRSHIFT 2 50*7c478bd9Sstevel@tonic-gate #define CLONGSHIFT 2 51*7c478bd9Sstevel@tonic-gate #endif 52*7c478bd9Sstevel@tonic-gate #define CPTRSIZE (1<<CPTRSHIFT) 53*7c478bd9Sstevel@tonic-gate #define CLONGSIZE (1<<CLONGSHIFT) 54*7c478bd9Sstevel@tonic-gate #define CPTRMASK (CPTRSIZE - 1) 55*7c478bd9Sstevel@tonic-gate #define CLONGMASK (CLONGSIZE - 1) 56*7c478bd9Sstevel@tonic-gate 57*7c478bd9Sstevel@tonic-gate /* 58*7c478bd9Sstevel@tonic-gate * Symbolic section definitions. 59*7c478bd9Sstevel@tonic-gate */ 60*7c478bd9Sstevel@tonic-gate #define RODATA ".rodata" 61*7c478bd9Sstevel@tonic-gate 62*7c478bd9Sstevel@tonic-gate /* 63*7c478bd9Sstevel@tonic-gate * profiling causes defintions of the MCOUNT and RTMCOUNT 64*7c478bd9Sstevel@tonic-gate * particular to the type 65*7c478bd9Sstevel@tonic-gate */ 66*7c478bd9Sstevel@tonic-gate #ifdef GPROF 67*7c478bd9Sstevel@tonic-gate 68*7c478bd9Sstevel@tonic-gate #define MCOUNT_SIZE (4*4) /* 4 instructions */ 69*7c478bd9Sstevel@tonic-gate #define MCOUNT(x) \ 70*7c478bd9Sstevel@tonic-gate save %sp, -SA(MINFRAME), %sp; \ 71*7c478bd9Sstevel@tonic-gate call _mcount; \ 72*7c478bd9Sstevel@tonic-gate nop; \ 73*7c478bd9Sstevel@tonic-gate restore; 74*7c478bd9Sstevel@tonic-gate 75*7c478bd9Sstevel@tonic-gate #endif /* GPROF */ 76*7c478bd9Sstevel@tonic-gate 77*7c478bd9Sstevel@tonic-gate #ifdef PROF 78*7c478bd9Sstevel@tonic-gate 79*7c478bd9Sstevel@tonic-gate #if defined(__sparcv9) 80*7c478bd9Sstevel@tonic-gate 81*7c478bd9Sstevel@tonic-gate #define MCOUNT_SIZE (9*4) /* 9 instructions */ 82*7c478bd9Sstevel@tonic-gate #define MCOUNT(x) \ 83*7c478bd9Sstevel@tonic-gate save %sp, -SA(MINFRAME), %sp; \ 84*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 85*7c478bd9Sstevel@tonic-gate sethi %hh(.L_/**/x/**/1), %o0; \ 86*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 87*7c478bd9Sstevel@tonic-gate sethi %lm(.L_/**/x/**/1), %o1; \ 88*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 89*7c478bd9Sstevel@tonic-gate or %o0, %hm(.L_/**/x/**/1), %o0; \ 90*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 91*7c478bd9Sstevel@tonic-gate or %o1, %lo(.L_/**/x/**/1), %o1; \ 92*7c478bd9Sstevel@tonic-gate sllx %o0, 32, %o0; \ 93*7c478bd9Sstevel@tonic-gate call _mcount; \ 94*7c478bd9Sstevel@tonic-gate or %o0, %o1, %o0; \ 95*7c478bd9Sstevel@tonic-gate restore; \ 96*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 97*7c478bd9Sstevel@tonic-gate .common .L_/**/x/**/1, 8, 8 98*7c478bd9Sstevel@tonic-gate 99*7c478bd9Sstevel@tonic-gate #else /* __sparcv9 */ 100*7c478bd9Sstevel@tonic-gate 101*7c478bd9Sstevel@tonic-gate #define MCOUNT_SIZE (5*4) /* 5 instructions */ 102*7c478bd9Sstevel@tonic-gate #define MCOUNT(x) \ 103*7c478bd9Sstevel@tonic-gate save %sp, -SA(MINFRAME), %sp; \ 104*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 105*7c478bd9Sstevel@tonic-gate sethi %hi(.L_/**/x/**/1), %o0; \ 106*7c478bd9Sstevel@tonic-gate call _mcount; \ 107*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 108*7c478bd9Sstevel@tonic-gate or %o0, %lo(.L_/**/x/**/1), %o0; \ 109*7c478bd9Sstevel@tonic-gate restore; \ 110*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 111*7c478bd9Sstevel@tonic-gate .common .L_/**/x/**/1, 4, 4 112*7c478bd9Sstevel@tonic-gate 113*7c478bd9Sstevel@tonic-gate #endif /* __sparcv9 */ 114*7c478bd9Sstevel@tonic-gate 115*7c478bd9Sstevel@tonic-gate #endif /* PROF */ 116*7c478bd9Sstevel@tonic-gate 117*7c478bd9Sstevel@tonic-gate /* 118*7c478bd9Sstevel@tonic-gate * if we are not profiling, MCOUNT should be defined to nothing 119*7c478bd9Sstevel@tonic-gate */ 120*7c478bd9Sstevel@tonic-gate #if !defined(PROF) && !defined(GPROF) 121*7c478bd9Sstevel@tonic-gate #define MCOUNT_SIZE 0 /* no instructions inserted */ 122*7c478bd9Sstevel@tonic-gate #define MCOUNT(x) 123*7c478bd9Sstevel@tonic-gate #endif /* !defined(PROF) && !defined(GPROF) */ 124*7c478bd9Sstevel@tonic-gate 125*7c478bd9Sstevel@tonic-gate #define RTMCOUNT(x) MCOUNT(x) 126*7c478bd9Sstevel@tonic-gate 127*7c478bd9Sstevel@tonic-gate /* 128*7c478bd9Sstevel@tonic-gate * Macro to define weak symbol aliases. These are similar to the ANSI-C 129*7c478bd9Sstevel@tonic-gate * #pragma weak name = _name 130*7c478bd9Sstevel@tonic-gate * except a compiler can determine type. The assembler must be told. Hence, 131*7c478bd9Sstevel@tonic-gate * the second parameter must be the type of the symbol (i.e.: function,...) 132*7c478bd9Sstevel@tonic-gate */ 133*7c478bd9Sstevel@tonic-gate #define ANSI_PRAGMA_WEAK(sym, stype) \ 134*7c478bd9Sstevel@tonic-gate .weak sym; \ 135*7c478bd9Sstevel@tonic-gate .type sym, #stype; \ 136*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 137*7c478bd9Sstevel@tonic-gate sym = _/**/sym 138*7c478bd9Sstevel@tonic-gate 139*7c478bd9Sstevel@tonic-gate /* 140*7c478bd9Sstevel@tonic-gate * Like ANSI_PRAGMA_WEAK(), but for unrelated names, as in: 141*7c478bd9Sstevel@tonic-gate * #pragma weak sym1 = sym2 142*7c478bd9Sstevel@tonic-gate */ 143*7c478bd9Sstevel@tonic-gate #define ANSI_PRAGMA_WEAK2(sym1, sym2, stype) \ 144*7c478bd9Sstevel@tonic-gate .weak sym1; \ 145*7c478bd9Sstevel@tonic-gate .type sym1, #stype; \ 146*7c478bd9Sstevel@tonic-gate sym1 = sym2 147*7c478bd9Sstevel@tonic-gate 148*7c478bd9Sstevel@tonic-gate /* 149*7c478bd9Sstevel@tonic-gate * ENTRY provides the standard procedure entry code and an easy way to 150*7c478bd9Sstevel@tonic-gate * insert the calls to mcount for profiling. ENTRY_NP is identical, but 151*7c478bd9Sstevel@tonic-gate * never calls mcount. 152*7c478bd9Sstevel@tonic-gate */ 153*7c478bd9Sstevel@tonic-gate #define ENTRY(x) \ 154*7c478bd9Sstevel@tonic-gate .section ".text"; \ 155*7c478bd9Sstevel@tonic-gate .align 4; \ 156*7c478bd9Sstevel@tonic-gate .global x; \ 157*7c478bd9Sstevel@tonic-gate .type x, #function; \ 158*7c478bd9Sstevel@tonic-gate x: MCOUNT(x) 159*7c478bd9Sstevel@tonic-gate 160*7c478bd9Sstevel@tonic-gate #define ENTRY_SIZE MCOUNT_SIZE 161*7c478bd9Sstevel@tonic-gate 162*7c478bd9Sstevel@tonic-gate #define ENTRY_NP(x) \ 163*7c478bd9Sstevel@tonic-gate .section ".text"; \ 164*7c478bd9Sstevel@tonic-gate .align 4; \ 165*7c478bd9Sstevel@tonic-gate .global x; \ 166*7c478bd9Sstevel@tonic-gate .type x, #function; \ 167*7c478bd9Sstevel@tonic-gate x: 168*7c478bd9Sstevel@tonic-gate 169*7c478bd9Sstevel@tonic-gate #define RTENTRY(x) \ 170*7c478bd9Sstevel@tonic-gate .section ".text"; \ 171*7c478bd9Sstevel@tonic-gate .align 4; \ 172*7c478bd9Sstevel@tonic-gate .global x; \ 173*7c478bd9Sstevel@tonic-gate .type x, #function; \ 174*7c478bd9Sstevel@tonic-gate x: RTMCOUNT(x) 175*7c478bd9Sstevel@tonic-gate 176*7c478bd9Sstevel@tonic-gate /* 177*7c478bd9Sstevel@tonic-gate * ENTRY2 is identical to ENTRY but provides two labels for the entry point. 178*7c478bd9Sstevel@tonic-gate */ 179*7c478bd9Sstevel@tonic-gate #define ENTRY2(x, y) \ 180*7c478bd9Sstevel@tonic-gate .section ".text"; \ 181*7c478bd9Sstevel@tonic-gate .align 4; \ 182*7c478bd9Sstevel@tonic-gate .global x, y; \ 183*7c478bd9Sstevel@tonic-gate .type x, #function; \ 184*7c478bd9Sstevel@tonic-gate .type y, #function; \ 185*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 186*7c478bd9Sstevel@tonic-gate x: ; \ 187*7c478bd9Sstevel@tonic-gate y: MCOUNT(x) 188*7c478bd9Sstevel@tonic-gate 189*7c478bd9Sstevel@tonic-gate #define ENTRY_NP2(x, y) \ 190*7c478bd9Sstevel@tonic-gate .section ".text"; \ 191*7c478bd9Sstevel@tonic-gate .align 4; \ 192*7c478bd9Sstevel@tonic-gate .global x, y; \ 193*7c478bd9Sstevel@tonic-gate .type x, #function; \ 194*7c478bd9Sstevel@tonic-gate .type y, #function; \ 195*7c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 196*7c478bd9Sstevel@tonic-gate x: ; \ 197*7c478bd9Sstevel@tonic-gate y: 198*7c478bd9Sstevel@tonic-gate 199*7c478bd9Sstevel@tonic-gate 200*7c478bd9Sstevel@tonic-gate /* 201*7c478bd9Sstevel@tonic-gate * ALTENTRY provides for additional entry points. 202*7c478bd9Sstevel@tonic-gate */ 203*7c478bd9Sstevel@tonic-gate #define ALTENTRY(x) \ 204*7c478bd9Sstevel@tonic-gate .global x; \ 205*7c478bd9Sstevel@tonic-gate .type x, #function; \ 206*7c478bd9Sstevel@tonic-gate x: 207*7c478bd9Sstevel@tonic-gate 208*7c478bd9Sstevel@tonic-gate /* 209*7c478bd9Sstevel@tonic-gate * DGDEF and DGDEF2 provide global data declarations. 210*7c478bd9Sstevel@tonic-gate * 211*7c478bd9Sstevel@tonic-gate * DGDEF provides a word aligned word of storage. 212*7c478bd9Sstevel@tonic-gate * 213*7c478bd9Sstevel@tonic-gate * DGDEF2 allocates "sz" bytes of storage with **NO** alignment. This 214*7c478bd9Sstevel@tonic-gate * implies this macro is best used for byte arrays. 215*7c478bd9Sstevel@tonic-gate * 216*7c478bd9Sstevel@tonic-gate * DGDEF3 allocates "sz" bytes of storage with "algn" alignment. 217*7c478bd9Sstevel@tonic-gate */ 218*7c478bd9Sstevel@tonic-gate #define DGDEF2(name, sz) \ 219*7c478bd9Sstevel@tonic-gate .section ".data"; \ 220*7c478bd9Sstevel@tonic-gate .global name; \ 221*7c478bd9Sstevel@tonic-gate .type name, #object; \ 222*7c478bd9Sstevel@tonic-gate .size name, sz; \ 223*7c478bd9Sstevel@tonic-gate name: 224*7c478bd9Sstevel@tonic-gate 225*7c478bd9Sstevel@tonic-gate #define DGDEF3(name, sz, algn) \ 226*7c478bd9Sstevel@tonic-gate .section ".data"; \ 227*7c478bd9Sstevel@tonic-gate .align algn; \ 228*7c478bd9Sstevel@tonic-gate .global name; \ 229*7c478bd9Sstevel@tonic-gate .type name, #object; \ 230*7c478bd9Sstevel@tonic-gate .size name, sz; \ 231*7c478bd9Sstevel@tonic-gate name: 232*7c478bd9Sstevel@tonic-gate 233*7c478bd9Sstevel@tonic-gate #define DGDEF(name) DGDEF3(name, 4, 4) 234*7c478bd9Sstevel@tonic-gate 235*7c478bd9Sstevel@tonic-gate /* 236*7c478bd9Sstevel@tonic-gate * SET_SIZE trails a function and set the size for the ELF symbol table. 237*7c478bd9Sstevel@tonic-gate */ 238*7c478bd9Sstevel@tonic-gate #define SET_SIZE(x) \ 239*7c478bd9Sstevel@tonic-gate .size x, (.-x) 240*7c478bd9Sstevel@tonic-gate 241*7c478bd9Sstevel@tonic-gate #endif /* _ASM */ 242*7c478bd9Sstevel@tonic-gate 243*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 244*7c478bd9Sstevel@tonic-gate } 245*7c478bd9Sstevel@tonic-gate #endif 246*7c478bd9Sstevel@tonic-gate 247*7c478bd9Sstevel@tonic-gate #endif /* _SYS_ASM_LINKAGE_H */ 248