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 #define LIBM_ANSI_PRAGMA_WEAK(sym,stype) \ 54 .weak __/**/sym; \ 55 .type __/**/sym,#stype; \ 56 __/**/sym = sym 57 58 #ifndef SET_FILE 59 #define SET_FILE(x) \ 60 .file x 61 #endif /* !defined(SET_FILE) */ 62 63 #ifdef PIC 64 /* 65 * One should *never* pass o7 to PIC_SETUP. 66 */ 67 #define PIC_SETUP(via) \ 68 9: call 8f; \ 69 sethi %hi(NAME(_GLOBAL_OFFSET_TABLE_)-(9b-.)),%via; \ 70 8: or %via,%lo(NAME(_GLOBAL_OFFSET_TABLE_)-(9b-.)),%via; \ 71 add %via,%o7,%via 72 /* 73 * Must save/restore %o7 in leaf routines; may *not* use jmpl! 74 */ 75 #define PIC_LEAF_SETUP(via) \ 76 or %g0,%o7,%g1; \ 77 9: call 8f; \ 78 sethi %hi(NAME(_GLOBAL_OFFSET_TABLE_)-(9b-.)),%via; \ 79 8: or %via,%lo(NAME(_GLOBAL_OFFSET_TABLE_)-(9b-.)),%via; \ 80 add %via,%o7,%via; \ 81 or %g0,%g1,%o7 82 #ifdef __sparcv9 83 #define PIC_SET(via,sym,dst) ldx [%via+sym],%dst 84 #else /* defined(__sparcv9) */ 85 #define PIC_SET(via,sym,dst) ld [%via+sym],%dst 86 #endif /* defined(__sparcv9) */ 87 #else /* defined(PIC) */ 88 #define PIC_SETUP(via) 89 #define PIC_LEAF_SETUP(via) 90 #ifdef __sparcv9 91 /* 92 * g1 is used as scratch register in V9 mode 93 */ 94 #define PIC_SET(via,sym,dst) setx sym,%g1,%dst 95 #else /* defined(__sparcv9) */ 96 #define PIC_SET(via,sym,dst) set sym,%dst 97 #endif /* defined(__sparcv9) */ 98 #endif /* defined(PIC) */ 99 100 /* 101 * Workaround for 4337025: MCOUNT in asm_linkage.h does not support __sparcv9 102 */ 103 #if defined(PROF) && defined(__sparcv9) 104 #undef MCOUNT_SIZE 105 #undef MCOUNT 106 107 #if !defined(PIC) 108 #define MCOUNT_SIZE (9*4) /* 9 instructions */ 109 #define MCOUNT(x) \ 110 save %sp, -SA(MINFRAME), %sp; \ 111 sethi %hh(.L_/**/x/**/1), %o0; \ 112 sethi %lm(.L_/**/x/**/1), %o1; \ 113 or %o0, %hm(.L_/**/x/**/1), %o0; \ 114 or %o1, %lo(.L_/**/x/**/1), %o1; \ 115 sllx %o0, 32, %o0; \ 116 call _mcount; \ 117 or %o0, %o1, %o0; \ 118 restore; \ 119 .common .L_/**/x/**/1, 8, 8 120 #elif defined(PIC32) 121 #define MCOUNT_SIZE (10*4) /* 10 instructions */ 122 #define MCOUNT(x) \ 123 save %sp,-SA(MINFRAME),%sp; \ 124 1: call .+8; \ 125 sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)),%o0; \ 126 sethi %hi(.L_/**/x/**/1),%o1; \ 127 add %o0,%lo(_GLOBAL_OFFSET_TABLE_-(1b-.)),%o0; \ 128 add %o1,%lo(.L_/**/x/**/1),%o1; \ 129 add %o0,%o7,%o0; \ 130 call _mcount; \ 131 ldx [%o0+%o1],%o0; \ 132 restore; \ 133 .common .L_/**/x/**/1,8,8 134 #else /* PIC13 */ 135 #define MCOUNT_SIZE (8*4) /* 8 instructions */ 136 #define MCOUNT(x) \ 137 save %sp,-SA(MINFRAME),%sp; \ 138 1: call .+8; \ 139 sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)),%o0; \ 140 add %o0,%lo(_GLOBAL_OFFSET_TABLE_-(1b-.)),%o0; \ 141 add %o0,%o7,%o0; \ 142 call _mcount; \ 143 ldx [%o0+%lo(.L_/**/x/**/1)],%o0; \ 144 restore; \ 145 .common .L_/**/x/**/1,8,8 146 #endif /* !defined(PIC) */ 147 #endif /* defined(PROF) && defined(__sparcv9) */ 148 #elif defined(__x86) 149 #define LIBM_ANSI_PRAGMA_WEAK(sym,stype) \ 150 .weak __/**/sym; \ 151 .type __/**/sym,@stype; \ 152 __/**/sym = sym 153 154 #ifdef PIC 155 #if defined(__amd64) 156 #define PIC_SETUP(x) 157 #define PIC_WRAPUP 158 #define PIC_F(x) x@PLT 159 #define PIC_G(x) x@GOTPCREL(%rip) 160 #define PIC_L(x) x(%rip) 161 #define PIC_G_LOAD(insn,sym,dst) \ 162 movq PIC_G(sym),%dst; \ 163 insn (%dst),%dst 164 #else 165 #define PIC_SETUP(label) \ 166 pushl %ebx; \ 167 call .label; \ 168 .label: popl %ebx; \ 169 addl $_GLOBAL_OFFSET_TABLE_+[.-.label],%ebx 170 #define PIC_WRAPUP popl %ebx 171 #define PIC_F(x) x@PLT 172 #define PIC_G(x) x@GOT(%ebx) 173 #define PIC_L(x) x@GOTOFF(%ebx) 174 #define PIC_G_LOAD(insn,sym,dst) \ 175 mov PIC_G(sym),%dst; \ 176 insn (%dst),%dst 177 #endif 178 #else /* defined(PIC) */ 179 #define PIC_SETUP(x) 180 #define PIC_WRAPUP 181 #define PIC_F(x) x 182 #define PIC_G(x) x 183 #define PIC_L(x) x 184 #define PIC_G_LOAD(insn,sym,dst) insn sym,%dst 185 #endif /* defined(PIC) */ 186 #else 187 #error Unknown architecture 188 #endif 189 190 /* END CSTYLED */ 191 #else /* defined(_ASM) */ 192 #include "libm_macros.h" 193 #include "libm_protos.h" 194 #include "libm_inlines.h" 195 #include <math.h> 196 #if defined(__SUNPRO_C) 197 #include <sunmath.h> 198 #endif 199 #endif /* defined(_ASM) */ 200 #endif /* _LIBM_H */