1 /* libunwind - a platform-independent unwind library 2 Copyright (C) 2003-2004 Hewlett-Packard Co 3 4 This file is part of libunwind. 5 6 Permission is hereby granted, free of charge, to any person obtaining 7 a copy of this software and associated documentation files (the 8 "Software"), to deal in the Software without restriction, including 9 without limitation the rights to use, copy, modify, merge, publish, 10 distribute, sublicense, and/or sell copies of the Software, and to 11 permit persons to whom the Software is furnished to do so, subject to 12 the following conditions: 13 14 The above copyright notice and this permission notice shall be 15 included in all copies or substantial portions of the Software. 16 17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 20 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 21 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 24 25 #ifndef LIBUNWIND_H 26 #define LIBUNWIND_H 27 28 #if defined(__cplusplus) || defined(c_plusplus) 29 extern "C" { 30 #endif 31 32 #include <inttypes.h> 33 #include <ucontext.h> 34 35 #define UNW_TARGET hppa 36 #define UNW_TARGET_HPPA 1 37 38 #define _U_TDEP_QP_TRUE 0 /* see libunwind-dynamic.h */ 39 40 /* This needs to be big enough to accommodate "struct cursor", while 41 leaving some slack for future expansion. Changing this value will 42 require recompiling all users of this library. Stack allocation is 43 relatively cheap and unwind-state copying is relatively rare, so we 44 want to err on making it rather too big than too small. */ 45 #define UNW_TDEP_CURSOR_LEN 511 46 47 typedef uint32_t unw_word_t; 48 typedef int32_t unw_sword_t; 49 50 typedef union 51 { 52 struct { unw_word_t bits[2]; } raw; 53 double val; 54 } 55 unw_tdep_fpreg_t; 56 57 typedef enum 58 { 59 /* Note: general registers are expected to start with index 0. 60 This convention facilitates architecture-independent 61 implementation of the C++ exception handling ABI. See 62 _Unwind_SetGR() and _Unwind_GetGR() for details. */ 63 UNW_HPPA_GR = 0, 64 UNW_HPPA_RP = 2, /* return pointer */ 65 UNW_HPPA_FP = 3, /* frame pointer */ 66 UNW_HPPA_SP = UNW_HPPA_GR + 30, 67 68 UNW_HPPA_FR = UNW_HPPA_GR + 32, 69 70 UNW_HPPA_IP = UNW_HPPA_FR + 32, /* instruction pointer */ 71 72 /* other "preserved" registers (fpsr etc.)... */ 73 74 /* PA-RISC has 4 exception-argument registers but they're not 75 contiguous. To deal with this, we define 4 pseudo 76 exception-handling registers which we then alias to the actual 77 physical register. */ 78 79 UNW_HPPA_EH0 = UNW_HPPA_IP + 1, /* alias for UNW_HPPA_GR + 20 */ 80 UNW_HPPA_EH1 = UNW_HPPA_EH0 + 1, /* alias for UNW_HPPA_GR + 21 */ 81 UNW_HPPA_EH2 = UNW_HPPA_EH1 + 1, /* alias for UNW_HPPA_GR + 22 */ 82 UNW_HPPA_EH3 = UNW_HPPA_EH2 + 1, /* alias for UNW_HPPA_GR + 31 */ 83 84 /* frame info (read-only) */ 85 UNW_HPPA_CFA, 86 87 UNW_TDEP_LAST_REG = UNW_HPPA_IP, 88 89 UNW_TDEP_IP = UNW_HPPA_IP, 90 UNW_TDEP_SP = UNW_HPPA_SP, 91 UNW_TDEP_EH = UNW_HPPA_EH0 92 } 93 hppa_regnum_t; 94 95 #define UNW_TDEP_NUM_EH_REGS 4 96 97 typedef struct unw_tdep_save_loc 98 { 99 /* Additional target-dependent info on a save location. */ 100 /* ANDROID support update. */ 101 char __reserved; 102 /* End of ANDROID update. */ 103 } 104 unw_tdep_save_loc_t; 105 106 /* On PA-RISC, we can directly use ucontext_t as the unwind context. */ 107 typedef ucontext_t unw_tdep_context_t; 108 109 #define unw_tdep_is_fpreg(r) ((unsigned) ((r) - UNW_HPPA_FR) < 32) 110 111 #include "libunwind-dynamic.h" 112 113 typedef struct 114 { 115 /* no PA-RISC-specific auxiliary proc-info */ 116 /* ANDROID support update. */ 117 char __reserved; 118 /* End of ANDROID update. */ 119 } 120 unw_tdep_proc_info_t; 121 122 #include "libunwind-common.h" 123 124 #define unw_tdep_getcontext UNW_ARCH_OBJ (getcontext) 125 extern int unw_tdep_getcontext (unw_tdep_context_t *); 126 127 #if defined(__cplusplus) || defined(c_plusplus) 128 } 129 #endif 130 131 #endif /* LIBUNWIND_H */ 132