1 /* nto-tdep.h - QNX Neutrino target header. 2 3 Copyright 2003 Free Software Foundation, Inc. 4 5 Contributed by QNX Software Systems Ltd. 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 2 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 59 Temple Place - Suite 330, 22 Boston, MA 02111-1307, USA. */ 23 24 #ifndef _NTO_TDEP_H 25 #define _NTO_TDEP_H 26 27 #include "defs.h" 28 #include "solist.h" 29 30 /* Generic functions in nto-tdep.c. */ 31 32 extern void nto_init_solib_absolute_prefix (void); 33 34 char **nto_parse_redirection (char *start_argv[], char **in, 35 char **out, char **err); 36 37 int proc_iterate_over_mappings (int (*func) (int, CORE_ADDR)); 38 39 void nto_relocate_section_addresses (struct so_list *, struct section_table *); 40 41 int nto_map_arch_to_cputype (const char *); 42 43 int nto_find_and_open_solib (char *, unsigned, char **); 44 45 /* Dummy function for initializing nto_target_ops on targets which do 46 not define a particular regset. */ 47 void nto_dummy_supply_regset (char *regs); 48 49 /* Target operations defined for Neutrino targets (<target>-nto-tdep.c). */ 50 51 struct nto_target_ops 52 { 53 int nto_internal_debugging; 54 unsigned nto_cpuinfo_flags; 55 int nto_cpuinfo_valid; 56 57 int (*nto_regset_id) (int); 58 void (*nto_supply_gregset) (char *); 59 void (*nto_supply_fpregset) (char *); 60 void (*nto_supply_altregset) (char *); 61 void (*nto_supply_regset) (int, char *); 62 int (*nto_register_area) (int, int, unsigned *); 63 int (*nto_regset_fill) (int, char *); 64 struct link_map_offsets *(*nto_fetch_link_map_offsets) (void); 65 }; 66 67 extern struct nto_target_ops current_nto_target; 68 69 /* For 'maintenance debug nto-debug' command. */ 70 #define nto_internal_debugging \ 71 (current_nto_target.nto_internal_debugging) 72 73 /* The CPUINFO flags from the remote. Currently used by 74 i386 for fxsave but future proofing other hosts. 75 This is initialized in procfs_attach or nto_start_remote 76 depending on our host/target. It would only be invalid 77 if we were talking to an older pdebug which didn't support 78 the cpuinfo message. */ 79 #define nto_cpuinfo_flags \ 80 (current_nto_target.nto_cpuinfo_flags) 81 82 /* True if successfully retrieved cpuinfo from remote. */ 83 #define nto_cpuinfo_valid \ 84 (current_nto_target.nto_cpuinfo_valid) 85 86 /* Given a register, return an id that represents the Neutrino 87 regset it came from. If reg == -1 update all regsets. */ 88 #define nto_regset_id(reg) \ 89 (*current_nto_target.nto_regset_id) (reg) 90 91 #define nto_supply_gregset(regs) \ 92 (*current_nto_target.nto_supply_gregset) (regs) 93 94 #define nto_supply_fpregset(regs) \ 95 (*current_nto_target.nto_supply_fpregset) (regs) 96 97 #define nto_supply_altregset(regs) \ 98 (*current_nto_target.nto_supply_altregset) (regs) 99 100 /* Given a regset, tell gdb about registers stored in data. */ 101 #define nto_supply_regset(regset, data) \ 102 (*current_nto_target.nto_supply_regset) (regset, data) 103 104 /* Given a register and regset, calculate the offset into the regset 105 and stuff it into the last argument. If regno is -1, calculate the 106 size of the entire regset. Returns length of data, -1 if unknown 107 regset, 0 if unknown register. */ 108 #define nto_register_area(reg, regset, off) \ 109 (*current_nto_target.nto_register_area) (reg, regset, off) 110 111 /* Build the Neutrino register set info into the data buffer. 112 Return -1 if unknown regset, 0 otherwise. */ 113 #define nto_regset_fill(regset, data) \ 114 (*current_nto_target.nto_regset_fill) (regset, data) 115 116 /* Gives the fetch_link_map_offsets function exposure outside of 117 solib-svr4.c so that we can override relocate_section_addresses(). */ 118 #define nto_fetch_link_map_offsets() \ 119 (*current_nto_target.nto_fetch_link_map_offsets) () 120 121 /* Keep this consistant with neutrino syspage.h. */ 122 enum 123 { 124 CPUTYPE_X86, 125 CPUTYPE_PPC, 126 CPUTYPE_MIPS, 127 CPUTYPE_SPARE, 128 CPUTYPE_ARM, 129 CPUTYPE_SH, 130 CPUTYPE_UNKNOWN 131 }; 132 133 enum 134 { 135 OSTYPE_QNX4, 136 OSTYPE_NTO 137 }; 138 139 /* These correspond to the DSMSG_* versions in dsmsgs.h. */ 140 enum 141 { 142 NTO_REG_GENERAL, 143 NTO_REG_FLOAT, 144 NTO_REG_SYSTEM, 145 NTO_REG_ALT, 146 NTO_REG_END 147 }; 148 149 typedef char qnx_reg64[8]; 150 151 typedef struct _debug_regs 152 { 153 qnx_reg64 padding[1024]; 154 } nto_regset_t; 155 156 #endif 157