1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 23 */ 24 /* 25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 */ 28 29 #ifndef _LIBM_H 30 #define _LIBM_H 31 32 #include <sys/isa_defs.h> 33 34 #ifdef _ASM 35 /* BEGIN CSTYLED */ 36 37 /* 38 * Disable amd64 assembly code profiling for now. 39 */ 40 #if defined(__amd64) 41 #undef PROF 42 #endif 43 44 #include <sys/asm_linkage.h> 45 46 #define NAME(x) x 47 #define TEXT .section ".text" 48 #define DATA .section ".data" 49 #define RO_DATA .section ".rodata" 50 #define IDENT(x) .ident x 51 52 #if defined(__sparc) 53 54 #define LIBM_ANSI_PRAGMA_WEAK(sym,stype) \ 55 .weak __/**/sym; \ 56 .type __/**/sym,#stype; \ 57 __/**/sym = sym 58 59 #ifndef SET_FILE 60 #define SET_FILE(x) \ 61 .file x 62 #endif /* !defined(SET_FILE) */ 63 64 #ifdef PIC 65 /* 66 * One should *never* pass o7 to PIC_SETUP. 67 */ 68 #define PIC_SETUP(via) \ 69 9: call 8f; \ 70 sethi %hi(NAME(_GLOBAL_OFFSET_TABLE_)-(9b-.)),%via; \ 71 8: or %via,%lo(NAME(_GLOBAL_OFFSET_TABLE_)-(9b-.)),%via; \ 72 add %via,%o7,%via 73 /* 74 * Must save/restore %o7 in leaf routines; may *not* use jmpl! 75 */ 76 #define PIC_LEAF_SETUP(via) \ 77 or %g0,%o7,%g1; \ 78 9: call 8f; \ 79 sethi %hi(NAME(_GLOBAL_OFFSET_TABLE_)-(9b-.)),%via; \ 80 8: or %via,%lo(NAME(_GLOBAL_OFFSET_TABLE_)-(9b-.)),%via; \ 81 add %via,%o7,%via; \ 82 or %g0,%g1,%o7 83 #ifdef __sparcv9 84 #define PIC_SET(via,sym,dst) ldx [%via+sym],%dst 85 #else /* defined(__sparcv9) */ 86 #define PIC_SET(via,sym,dst) ld [%via+sym],%dst 87 #endif /* defined(__sparcv9) */ 88 #else /* defined(PIC) */ 89 #define PIC_SETUP(via) 90 #define PIC_LEAF_SETUP(via) 91 #ifdef __sparcv9 92 /* 93 * g1 is used as scratch register in V9 mode 94 */ 95 #define PIC_SET(via,sym,dst) setx sym,%g1,%dst 96 #else /* defined(__sparcv9) */ 97 #define PIC_SET(via,sym,dst) set sym,%dst 98 #endif /* defined(__sparcv9) */ 99 #endif /* defined(PIC) */ 100 101 /* 102 * Workaround for 4337025: MCOUNT in asm_linkage.h does not support __sparcv9 103 */ 104 #if defined(PROF) && defined(__sparcv9) 105 106 #undef MCOUNT_SIZE 107 #undef MCOUNT 108 109 #if !defined(PIC) 110 #define MCOUNT_SIZE (9*4) /* 9 instructions */ 111 #define MCOUNT(x) \ 112 save %sp, -SA(MINFRAME), %sp; \ 113 sethi %hh(.L_/**/x/**/1), %o0; \ 114 sethi %lm(.L_/**/x/**/1), %o1; \ 115 or %o0, %hm(.L_/**/x/**/1), %o0; \ 116 or %o1, %lo(.L_/**/x/**/1), %o1; \ 117 sllx %o0, 32, %o0; \ 118 call _mcount; \ 119 or %o0, %o1, %o0; \ 120 restore; \ 121 .common .L_/**/x/**/1, 8, 8 122 #elif defined(PIC32) 123 #define MCOUNT_SIZE (10*4) /* 10 instructions */ 124 #define MCOUNT(x) \ 125 save %sp,-SA(MINFRAME),%sp; \ 126 1: call .+8; \ 127 sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)),%o0; \ 128 sethi %hi(.L_/**/x/**/1),%o1; \ 129 add %o0,%lo(_GLOBAL_OFFSET_TABLE_-(1b-.)),%o0; \ 130 add %o1,%lo(.L_/**/x/**/1),%o1; \ 131 add %o0,%o7,%o0; \ 132 call _mcount; \ 133 ldx [%o0+%o1],%o0; \ 134 restore; \ 135 .common .L_/**/x/**/1,8,8 136 #else /* PIC13 */ 137 #define MCOUNT_SIZE (8*4) /* 8 instructions */ 138 #define MCOUNT(x) \ 139 save %sp,-SA(MINFRAME),%sp; \ 140 1: call .+8; \ 141 sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)),%o0; \ 142 add %o0,%lo(_GLOBAL_OFFSET_TABLE_-(1b-.)),%o0; \ 143 add %o0,%o7,%o0; \ 144 call _mcount; \ 145 ldx [%o0+%lo(.L_/**/x/**/1)],%o0; \ 146 restore; \ 147 .common .L_/**/x/**/1,8,8 148 #endif /* !defined(PIC) */ 149 #endif /* defined(PROF) && defined(__sparcv9) */ 150 151 #elif defined(__x86) 152 153 #define LIBM_ANSI_PRAGMA_WEAK(sym,stype) \ 154 .weak __/**/sym; \ 155 .type __/**/sym,@stype; \ 156 __/**/sym = sym 157 158 #ifdef PIC 159 #if defined(__amd64) 160 #define PIC_SETUP(x) 161 #define PIC_WRAPUP 162 #define PIC_F(x) x@PLT 163 #define PIC_G(x) x@GOTPCREL(%rip) 164 #define PIC_L(x) x(%rip) 165 #define PIC_G_LOAD(insn,sym,dst) \ 166 movq PIC_G(sym),%dst; \ 167 insn (%dst),%dst 168 #else 169 #define PIC_SETUP(label) \ 170 pushl %ebx; \ 171 call .label; \ 172 .label: popl %ebx; \ 173 addl $_GLOBAL_OFFSET_TABLE_+[.-.label],%ebx 174 #define PIC_WRAPUP popl %ebx 175 #define PIC_F(x) x@PLT 176 #define PIC_G(x) x@GOT(%ebx) 177 #define PIC_L(x) x@GOTOFF(%ebx) 178 #define PIC_G_LOAD(insn,sym,dst) \ 179 mov PIC_G(sym),%dst; \ 180 insn (%dst),%dst 181 #endif 182 #else /* defined(PIC) */ 183 #define PIC_SETUP(x) 184 #define PIC_WRAPUP 185 #define PIC_F(x) x 186 #define PIC_G(x) x 187 #define PIC_L(x) x 188 #define PIC_G_LOAD(insn,sym,dst) insn sym,%dst 189 #endif /* defined(PIC) */ 190 191 #else 192 #error Unknown architecture 193 #endif 194 195 /* END CSTYLED */ 196 #else /* defined(_ASM) */ 197 198 #include "libm_macros.h" 199 #include "libm_protos.h" 200 #include "libm_inlines.h" 201 #include <math.h> 202 #if defined(__SUNPRO_C) 203 #include <sunmath.h> 204 #endif 205 206 #endif /* defined(_ASM) */ 207 208 #endif /* _LIBM_H */ 209