1/* libunwind - a platform-independent unwind library 2 Copyright (C) 2003-2004 Hewlett-Packard Co 3 4This file is part of libunwind. 5 6Permission is hereby granted, free of charge, to any person obtaining 7a copy of this software and associated documentation files (the 8"Software"), to deal in the Software without restriction, including 9without limitation the rights to use, copy, modify, merge, publish, 10distribute, sublicense, and/or sell copies of the Software, and to 11permit persons to whom the Software is furnished to do so, subject to 12the following conditions: 13 14The above copyright notice and this permission notice shall be 15included in all copies or substantial portions of the Software. 16 17THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 20NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 21LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23WITH 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) 29extern "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 47typedef uint32_t unw_word_t; 48typedef int32_t unw_sword_t; 49 50typedef union 51 { 52 struct { unw_word_t bits[2]; } raw; 53 double val; 54 } 55unw_tdep_fpreg_t; 56 57typedef 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 } 93hppa_regnum_t; 94 95#define UNW_TDEP_NUM_EH_REGS 4 96 97typedef struct unw_tdep_save_loc 98 { 99 /* Additional target-dependent info on a save location. */ 100 } 101unw_tdep_save_loc_t; 102 103/* On PA-RISC, we can directly use ucontext_t as the unwind context. */ 104typedef ucontext_t unw_tdep_context_t; 105 106#define unw_tdep_is_fpreg(r) ((unsigned) ((r) - UNW_HPPA_FR) < 32) 107 108#include "libunwind-dynamic.h" 109 110typedef struct 111 { 112 /* no PA-RISC-specific auxiliary proc-info */ 113 } 114unw_tdep_proc_info_t; 115 116#include "libunwind-common.h" 117 118#define unw_tdep_getcontext UNW_ARCH_OBJ (getcontext) 119extern int unw_tdep_getcontext (unw_tdep_context_t *); 120 121#if defined(__cplusplus) || defined(c_plusplus) 122} 123#endif 124 125#endif /* LIBUNWIND_H */ 126