1 /* libunwind - a platform-independent unwind library 2 Copyright (C) 2006-2007 IBM 3 Contributed by 4 Corey Ashford <cjashfor@us.ibm.com> 5 Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com> 6 7 This file is part of libunwind. 8 9 Permission is hereby granted, free of charge, to any person obtaining 10 a copy of this software and associated documentation files (the 11 "Software"), to deal in the Software without restriction, including 12 without limitation the rights to use, copy, modify, merge, publish, 13 distribute, sublicense, and/or sell copies of the Software, and to 14 permit persons to whom the Software is furnished to do so, subject to 15 the following conditions: 16 17 The above copyright notice and this permission notice shall be 18 included in all copies or substantial portions of the Software. 19 20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 23 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 27 28 #include "unwind_i.h" 29 #include "dwarf_i.h" 30 31 HIDDEN define_lock (ppc64_lock); 32 HIDDEN int tdep_init_done; 33 34 /* The API register numbers are exactly the same as the .eh_frame 35 registers, for now at least. */ 36 HIDDEN const uint8_t dwarf_to_unw_regnum_map[DWARF_REGNUM_MAP_LENGTH] = 37 { 38 [UNW_PPC64_R0]=UNW_PPC64_R0, 39 [UNW_PPC64_R1]=UNW_PPC64_R1, 40 [UNW_PPC64_R2]=UNW_PPC64_R2, 41 [UNW_PPC64_R3]=UNW_PPC64_R3, 42 [UNW_PPC64_R4]=UNW_PPC64_R4, 43 [UNW_PPC64_R5]=UNW_PPC64_R5, 44 [UNW_PPC64_R6]=UNW_PPC64_R6, 45 [UNW_PPC64_R7]=UNW_PPC64_R7, 46 [UNW_PPC64_R8]=UNW_PPC64_R8, 47 [UNW_PPC64_R9]=UNW_PPC64_R9, 48 [UNW_PPC64_R10]=UNW_PPC64_R10, 49 [UNW_PPC64_R11]=UNW_PPC64_R11, 50 [UNW_PPC64_R12]=UNW_PPC64_R12, 51 [UNW_PPC64_R13]=UNW_PPC64_R13, 52 [UNW_PPC64_R14]=UNW_PPC64_R14, 53 [UNW_PPC64_R15]=UNW_PPC64_R15, 54 [UNW_PPC64_R16]=UNW_PPC64_R16, 55 [UNW_PPC64_R17]=UNW_PPC64_R17, 56 [UNW_PPC64_R18]=UNW_PPC64_R18, 57 [UNW_PPC64_R19]=UNW_PPC64_R19, 58 [UNW_PPC64_R20]=UNW_PPC64_R20, 59 [UNW_PPC64_R21]=UNW_PPC64_R21, 60 [UNW_PPC64_R22]=UNW_PPC64_R22, 61 [UNW_PPC64_R23]=UNW_PPC64_R23, 62 [UNW_PPC64_R24]=UNW_PPC64_R24, 63 [UNW_PPC64_R25]=UNW_PPC64_R25, 64 [UNW_PPC64_R26]=UNW_PPC64_R26, 65 [UNW_PPC64_R27]=UNW_PPC64_R27, 66 [UNW_PPC64_R28]=UNW_PPC64_R28, 67 [UNW_PPC64_R29]=UNW_PPC64_R29, 68 [UNW_PPC64_R30]=UNW_PPC64_R30, 69 [UNW_PPC64_R31]=UNW_PPC64_R31, 70 71 [UNW_PPC64_F0]=UNW_PPC64_F0, 72 [UNW_PPC64_F1]=UNW_PPC64_F1, 73 [UNW_PPC64_F2]=UNW_PPC64_F2, 74 [UNW_PPC64_F3]=UNW_PPC64_F3, 75 [UNW_PPC64_F4]=UNW_PPC64_F4, 76 [UNW_PPC64_F5]=UNW_PPC64_F5, 77 [UNW_PPC64_F6]=UNW_PPC64_F6, 78 [UNW_PPC64_F7]=UNW_PPC64_F7, 79 [UNW_PPC64_F8]=UNW_PPC64_F8, 80 [UNW_PPC64_F9]=UNW_PPC64_F9, 81 [UNW_PPC64_F10]=UNW_PPC64_F10, 82 [UNW_PPC64_F11]=UNW_PPC64_F11, 83 [UNW_PPC64_F12]=UNW_PPC64_F12, 84 [UNW_PPC64_F13]=UNW_PPC64_F13, 85 [UNW_PPC64_F14]=UNW_PPC64_F14, 86 [UNW_PPC64_F15]=UNW_PPC64_F15, 87 [UNW_PPC64_F16]=UNW_PPC64_F16, 88 [UNW_PPC64_F17]=UNW_PPC64_F17, 89 [UNW_PPC64_F18]=UNW_PPC64_F18, 90 [UNW_PPC64_F19]=UNW_PPC64_F19, 91 [UNW_PPC64_F20]=UNW_PPC64_F20, 92 [UNW_PPC64_F21]=UNW_PPC64_F21, 93 [UNW_PPC64_F22]=UNW_PPC64_F22, 94 [UNW_PPC64_F23]=UNW_PPC64_F23, 95 [UNW_PPC64_F24]=UNW_PPC64_F24, 96 [UNW_PPC64_F25]=UNW_PPC64_F25, 97 [UNW_PPC64_F26]=UNW_PPC64_F26, 98 [UNW_PPC64_F27]=UNW_PPC64_F27, 99 [UNW_PPC64_F28]=UNW_PPC64_F28, 100 [UNW_PPC64_F29]=UNW_PPC64_F29, 101 [UNW_PPC64_F30]=UNW_PPC64_F30, 102 [UNW_PPC64_F31]=UNW_PPC64_F31, 103 104 [UNW_PPC64_LR]=UNW_PPC64_LR, 105 [UNW_PPC64_CTR]=UNW_PPC64_CTR, 106 [UNW_PPC64_ARG_POINTER]=UNW_PPC64_ARG_POINTER, 107 108 [UNW_PPC64_CR0]=UNW_PPC64_CR0, 109 [UNW_PPC64_CR1]=UNW_PPC64_CR1, 110 [UNW_PPC64_CR2]=UNW_PPC64_CR2, 111 [UNW_PPC64_CR3]=UNW_PPC64_CR3, 112 [UNW_PPC64_CR4]=UNW_PPC64_CR4, 113 [UNW_PPC64_CR5]=UNW_PPC64_CR5, 114 [UNW_PPC64_CR6]=UNW_PPC64_CR6, 115 [UNW_PPC64_CR7]=UNW_PPC64_CR7, 116 117 [UNW_PPC64_XER]=UNW_PPC64_XER, 118 119 [UNW_PPC64_V0]=UNW_PPC64_V0, 120 [UNW_PPC64_V1]=UNW_PPC64_V1, 121 [UNW_PPC64_V2]=UNW_PPC64_V2, 122 [UNW_PPC64_V3]=UNW_PPC64_V3, 123 [UNW_PPC64_V4]=UNW_PPC64_V4, 124 [UNW_PPC64_V5]=UNW_PPC64_V5, 125 [UNW_PPC64_V6]=UNW_PPC64_V6, 126 [UNW_PPC64_V7]=UNW_PPC64_V7, 127 [UNW_PPC64_V8]=UNW_PPC64_V8, 128 [UNW_PPC64_V9]=UNW_PPC64_V9, 129 [UNW_PPC64_V10]=UNW_PPC64_V10, 130 [UNW_PPC64_V11]=UNW_PPC64_V11, 131 [UNW_PPC64_V12]=UNW_PPC64_V12, 132 [UNW_PPC64_V13]=UNW_PPC64_V13, 133 [UNW_PPC64_V14]=UNW_PPC64_V14, 134 [UNW_PPC64_V15]=UNW_PPC64_V15, 135 [UNW_PPC64_V16]=UNW_PPC64_V16, 136 [UNW_PPC64_V17]=UNW_PPC64_V17, 137 [UNW_PPC64_V18]=UNW_PPC64_V18, 138 [UNW_PPC64_V19]=UNW_PPC64_V19, 139 [UNW_PPC64_V20]=UNW_PPC64_V20, 140 [UNW_PPC64_V21]=UNW_PPC64_V21, 141 [UNW_PPC64_V22]=UNW_PPC64_V22, 142 [UNW_PPC64_V23]=UNW_PPC64_V23, 143 [UNW_PPC64_V24]=UNW_PPC64_V24, 144 [UNW_PPC64_V25]=UNW_PPC64_V25, 145 [UNW_PPC64_V26]=UNW_PPC64_V26, 146 [UNW_PPC64_V27]=UNW_PPC64_V27, 147 [UNW_PPC64_V28]=UNW_PPC64_V28, 148 [UNW_PPC64_V29]=UNW_PPC64_V29, 149 [UNW_PPC64_V30]=UNW_PPC64_V30, 150 [UNW_PPC64_V31]=UNW_PPC64_V31, 151 152 [UNW_PPC64_VRSAVE]=UNW_PPC64_VRSAVE, 153 [UNW_PPC64_VSCR]=UNW_PPC64_VSCR, 154 [UNW_PPC64_SPE_ACC]=UNW_PPC64_SPE_ACC, 155 [UNW_PPC64_SPEFSCR]=UNW_PPC64_SPEFSCR, 156 }; 157 158 HIDDEN void tdep_init(void)159 tdep_init (void) 160 { 161 intrmask_t saved_mask; 162 163 sigfillset (&unwi_full_mask); 164 165 lock_acquire (&ppc64_lock, saved_mask); 166 { 167 if (tdep_init_done) 168 /* another thread else beat us to it... */ 169 goto out; 170 171 mi_init (); 172 173 dwarf_init (); 174 175 #ifndef UNW_REMOTE_ONLY 176 ppc64_local_addr_space_init (); 177 #endif 178 tdep_init_done = 1; /* signal that we're initialized... */ 179 } 180 out: 181 lock_release (&ppc64_lock, saved_mask); 182 } 183