1/* nto-tdep.h - QNX Neutrino target header. 2 3 Copyright (C) 2003-2020 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 3 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, see <http://www.gnu.org/licenses/>. */ 21 22#ifndef NTO_TDEP_H 23#define NTO_TDEP_H 24 25#include "solist.h" 26#include "osabi.h" 27#include "regset.h" 28#include "gdbthread.h" 29 30/* Target operations defined for Neutrino targets (<target>-nto-tdep.c). */ 31 32struct nto_target_ops 33{ 34/* The CPUINFO flags from the remote. Currently used by 35 i386 for fxsave but future proofing other hosts. 36 This is initialized in procfs_attach or nto_start_remote 37 depending on our host/target. It would only be invalid 38 if we were talking to an older pdebug which didn't support 39 the cpuinfo message. */ 40 unsigned cpuinfo_flags; 41 42/* True if successfully retrieved cpuinfo from remote. */ 43 int cpuinfo_valid; 44 45/* Given a register, return an id that represents the Neutrino 46 regset it came from. If reg == -1 update all regsets. */ 47 int (*regset_id) (int); 48 49 void (*supply_gregset) (struct regcache *, char *); 50 51 void (*supply_fpregset) (struct regcache *, char *); 52 53 void (*supply_altregset) (struct regcache *, char *); 54 55/* Given a regset, tell gdb about registers stored in data. */ 56 void (*supply_regset) (struct regcache *, int, char *); 57 58/* Given a register and regset, calculate the offset into the regset 59 and stuff it into the last argument. If regno is -1, calculate the 60 size of the entire regset. Returns length of data, -1 if unknown 61 regset, 0 if unknown register. */ 62 int (*register_area) (struct gdbarch *, int, int, unsigned *); 63 64/* Build the Neutrino register set info into the data buffer. 65 Return -1 if unknown regset, 0 otherwise. */ 66 int (*regset_fill) (const struct regcache *, int, char *); 67 68/* Gives the fetch_link_map_offsets function exposure outside of 69 solib-svr4.c so that we can override relocate_section_addresses(). */ 70 struct link_map_offsets *(*fetch_link_map_offsets) (void); 71 72/* Used by nto_elf_osabi_sniffer to determine if we're connected to an 73 Neutrino target. */ 74 enum gdb_osabi (*is_nto_target) (bfd *abfd); 75}; 76 77extern struct nto_target_ops current_nto_target; 78 79#define nto_cpuinfo_flags (current_nto_target.cpuinfo_flags) 80 81#define nto_cpuinfo_valid (current_nto_target.cpuinfo_valid) 82 83#define nto_regset_id (current_nto_target.regset_id) 84 85#define nto_supply_gregset (current_nto_target.supply_gregset) 86 87#define nto_supply_fpregset (current_nto_target.supply_fpregset) 88 89#define nto_supply_altregset (current_nto_target.supply_altregset) 90 91#define nto_supply_regset (current_nto_target.supply_regset) 92 93#define nto_register_area (current_nto_target.register_area) 94 95#define nto_regset_fill (current_nto_target.regset_fill) 96 97#define nto_fetch_link_map_offsets \ 98(current_nto_target.fetch_link_map_offsets) 99 100#define nto_is_nto_target (current_nto_target.is_nto_target) 101 102/* Keep this consistant with neutrino syspage.h. */ 103enum 104{ 105 CPUTYPE_X86, 106 CPUTYPE_PPC, 107 CPUTYPE_MIPS, 108 CPUTYPE_SPARE, 109 CPUTYPE_ARM, 110 CPUTYPE_SH, 111 CPUTYPE_UNKNOWN 112}; 113 114enum 115{ 116 OSTYPE_QNX4, 117 OSTYPE_NTO 118}; 119 120/* These correspond to the DSMSG_* versions in dsmsgs.h. */ 121enum 122{ 123 NTO_REG_GENERAL, 124 NTO_REG_FLOAT, 125 NTO_REG_SYSTEM, 126 NTO_REG_ALT, 127 NTO_REG_END 128}; 129 130typedef char qnx_reg64[8]; 131 132typedef struct _debug_regs 133{ 134 qnx_reg64 padding[1024]; 135} nto_regset_t; 136 137struct nto_thread_info : public private_thread_info 138{ 139 short tid = 0; 140 unsigned char state = 0; 141 unsigned char flags = 0; 142 std::string name; 143}; 144 145static inline nto_thread_info * 146get_nto_thread_info (thread_info *thread) 147{ 148 return static_cast<nto_thread_info *> (thread->priv.get ()); 149} 150 151/* Per-inferior data, common for both procfs and remote. */ 152struct nto_inferior_data 153{ 154 /* Last stopped flags result from wait function */ 155 unsigned int stopped_flags = 0; 156 157 /* Last known stopped PC */ 158 CORE_ADDR stopped_pc = 0; 159}; 160 161/* Generic functions in nto-tdep.c. */ 162 163void nto_init_solib_absolute_prefix (void); 164 165char **nto_parse_redirection (char *start_argv[], const char **in, 166 const char **out, const char **err); 167 168void nto_relocate_section_addresses (struct so_list *, 169 struct target_section *); 170 171int nto_map_arch_to_cputype (const char *); 172 173int nto_find_and_open_solib (const char *, unsigned, 174 gdb::unique_xmalloc_ptr<char> *); 175 176enum gdb_osabi nto_elf_osabi_sniffer (bfd *abfd); 177 178void nto_initialize_signals (void); 179 180/* Dummy function for initializing nto_target_ops on targets which do 181 not define a particular regset. */ 182void nto_dummy_supply_regset (struct regcache *regcache, char *regs); 183 184int nto_in_dynsym_resolve_code (CORE_ADDR pc); 185 186const char *nto_extra_thread_info (struct target_ops *self, struct thread_info *); 187 188LONGEST nto_read_auxv_from_initial_stack (CORE_ADDR inital_stack, 189 gdb_byte *readbuf, 190 LONGEST len, size_t sizeof_auxv_t); 191 192struct nto_inferior_data *nto_inferior_data (struct inferior *inf); 193 194#endif /* NTO_TDEP_H */ 195