1 /* libunwind - a platform-independent unwind library 2 Copyright (C) 2008 CodeSourcery 3 Copyright (C) 2014 Tilera Corp. 4 5 This file is part of libunwind. 6 7 Permission is hereby granted, free of charge, to any person obtaining 8 a copy of this software and associated documentation files (the 9 "Software"), to deal in the Software without restriction, including 10 without limitation the rights to use, copy, modify, merge, publish, 11 distribute, sublicense, and/or sell copies of the Software, and to 12 permit persons to whom the Software is furnished to do so, subject to 13 the following conditions: 14 15 The above copyright notice and this permission notice shall be 16 included in all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 25 26 #ifndef LIBUNWIND_H 27 #define LIBUNWIND_H 28 29 #if defined(__cplusplus) || defined(c_plusplus) 30 extern "C" { 31 #endif 32 33 #include <inttypes.h> 34 #include <ucontext.h> 35 36 #define UNW_TARGET tilegx 37 #define UNW_TARGET_TILEGX 1 38 39 #define _U_TDEP_QP_TRUE 0 /* see libunwind-dynamic.h */ 40 41 /* This needs to be big enough to accommodate "struct cursor", while 42 leaving some slack for future expansion. Changing this value will 43 require recompiling all users of this library. Stack allocation is 44 relatively cheap and unwind-state copying is relatively rare, so we 45 want to err on making it rather too big than too small. */ 46 47 #define UNW_TDEP_CURSOR_LEN 4096 48 49 /* The size of a "word" varies on TILEGX. This type is used for memory 50 addresses and register values. */ 51 typedef uint64_t unw_word_t; 52 typedef int64_t unw_sword_t; 53 54 typedef long double unw_tdep_fpreg_t; 55 56 typedef enum 57 { 58 UNW_TILEGX_R0, 59 UNW_TILEGX_R1, 60 UNW_TILEGX_R2, 61 UNW_TILEGX_R3, 62 UNW_TILEGX_R4, 63 UNW_TILEGX_R5, 64 UNW_TILEGX_R6, 65 UNW_TILEGX_R7, 66 UNW_TILEGX_R8, 67 UNW_TILEGX_R9, 68 UNW_TILEGX_R10, 69 UNW_TILEGX_R11, 70 UNW_TILEGX_R12, 71 UNW_TILEGX_R13, 72 UNW_TILEGX_R14, 73 UNW_TILEGX_R15, 74 UNW_TILEGX_R16, 75 UNW_TILEGX_R17, 76 UNW_TILEGX_R18, 77 UNW_TILEGX_R19, 78 UNW_TILEGX_R20, 79 UNW_TILEGX_R21, 80 UNW_TILEGX_R22, 81 UNW_TILEGX_R23, 82 UNW_TILEGX_R24, 83 UNW_TILEGX_R25, 84 UNW_TILEGX_R26, 85 UNW_TILEGX_R27, 86 UNW_TILEGX_R28, 87 UNW_TILEGX_R29, 88 UNW_TILEGX_R30, 89 UNW_TILEGX_R31, 90 UNW_TILEGX_R32, 91 UNW_TILEGX_R33, 92 UNW_TILEGX_R34, 93 UNW_TILEGX_R35, 94 UNW_TILEGX_R36, 95 UNW_TILEGX_R37, 96 UNW_TILEGX_R38, 97 UNW_TILEGX_R39, 98 UNW_TILEGX_R40, 99 UNW_TILEGX_R41, 100 UNW_TILEGX_R42, 101 UNW_TILEGX_R43, 102 UNW_TILEGX_R44, 103 UNW_TILEGX_R45, 104 UNW_TILEGX_R46, 105 UNW_TILEGX_R47, 106 UNW_TILEGX_R48, 107 UNW_TILEGX_R49, 108 UNW_TILEGX_R50, 109 UNW_TILEGX_R51, 110 UNW_TILEGX_R52, 111 UNW_TILEGX_R53, 112 UNW_TILEGX_R54, 113 UNW_TILEGX_R55, 114 115 /* FIXME: Other registers! */ 116 117 UNW_TILEGX_PC, 118 /* For TILEGX, the CFA is the value of SP (r54) at the call site in the 119 previous frame. */ 120 UNW_TILEGX_CFA, 121 122 UNW_TDEP_LAST_REG = UNW_TILEGX_PC, 123 124 UNW_TDEP_IP = UNW_TILEGX_R55, /* R55 is link register for Tilegx */ 125 UNW_TDEP_SP = UNW_TILEGX_R54, 126 UNW_TDEP_EH = UNW_TILEGX_R0 /* FIXME. */ 127 } tilegx_regnum_t; 128 129 typedef enum 130 { 131 UNW_TILEGX_ABI_N64 = 2 132 } tilegx_abi_t; 133 134 #define UNW_TDEP_NUM_EH_REGS 2 /* FIXME for TILEGX. */ 135 136 typedef struct unw_tdep_save_loc 137 { 138 /* Additional target-dependent info on a save location. */ 139 } unw_tdep_save_loc_t; 140 141 typedef ucontext_t unw_tdep_context_t; 142 143 #include "libunwind-dynamic.h" 144 145 typedef struct 146 { 147 /* no tilegx-specific auxiliary proc-info */ 148 } unw_tdep_proc_info_t; 149 150 #include "libunwind-common.h" 151 152 #define unw_tdep_getcontext getcontext 153 154 #define unw_tdep_is_fpreg UNW_ARCH_OBJ(is_fpreg) 155 extern int unw_tdep_is_fpreg (int); 156 157 #if defined(__cplusplus) || defined(c_plusplus) 158 } 159 #endif 160 161 #endif /* LIBUNWIND_H */ 162