1 /* nto-tdep.h - QNX Neutrino target header.
3 Copyright (C) 2003-2019 Free Software Foundation, Inc.
5 Contributed by QNX Software Systems Ltd.
7 This file is part of GDB.
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.
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.
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/>. */
28 #include "gdbthread.h"
30 /* Target operations defined for Neutrino targets (<target>-nto-tdep.c). */
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;
42 /* True if successfully retrieved cpuinfo from remote. */
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);
49 void (*supply_gregset) (struct regcache *, char *);
51 void (*supply_fpregset) (struct regcache *, char *);
53 void (*supply_altregset) (struct regcache *, char *);
55 /* Given a regset, tell gdb about registers stored in data. */
56 void (*supply_regset) (struct regcache *, int, char *);
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 *);
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 *);
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);
72 /* Used by nto_elf_osabi_sniffer to determine if we're connected to an
74 enum gdb_osabi (*is_nto_target) (bfd *abfd);
77 extern struct nto_target_ops current_nto_target;
79 #define nto_cpuinfo_flags (current_nto_target.cpuinfo_flags)
81 #define nto_cpuinfo_valid (current_nto_target.cpuinfo_valid)
83 #define nto_regset_id (current_nto_target.regset_id)
85 #define nto_supply_gregset (current_nto_target.supply_gregset)
87 #define nto_supply_fpregset (current_nto_target.supply_fpregset)
89 #define nto_supply_altregset (current_nto_target.supply_altregset)
91 #define nto_supply_regset (current_nto_target.supply_regset)
93 #define nto_register_area (current_nto_target.register_area)
95 #define nto_regset_fill (current_nto_target.regset_fill)
97 #define nto_fetch_link_map_offsets \
98 (current_nto_target.fetch_link_map_offsets)
100 #define nto_is_nto_target (current_nto_target.is_nto_target)
102 /* Keep this consistant with neutrino syspage.h. */
120 /* These correspond to the DSMSG_* versions in dsmsgs.h. */
130 typedef char qnx_reg64[8];
132 typedef struct _debug_regs
134 qnx_reg64 padding[1024];
137 struct nto_thread_info : public private_thread_info
140 unsigned char state = 0;
141 unsigned char flags = 0;
145 static inline nto_thread_info *
146 get_nto_thread_info (thread_info *thread)
148 return static_cast<nto_thread_info *> (thread->priv.get ());
151 /* Per-inferior data, common for both procfs and remote. */
152 struct nto_inferior_data
154 /* Last stopped flags result from wait function */
155 unsigned int stopped_flags;
157 /* Last known stopped PC */
158 CORE_ADDR stopped_pc;
161 /* Generic functions in nto-tdep.c. */
163 void nto_init_solib_absolute_prefix (void);
165 char **nto_parse_redirection (char *start_argv[], const char **in,
166 const char **out, const char **err);
168 void nto_relocate_section_addresses (struct so_list *,
169 struct target_section *);
171 int nto_map_arch_to_cputype (const char *);
173 int nto_find_and_open_solib (const char *, unsigned,
174 gdb::unique_xmalloc_ptr<char> *);
176 enum gdb_osabi nto_elf_osabi_sniffer (bfd *abfd);
178 void nto_initialize_signals (void);
180 /* Dummy function for initializing nto_target_ops on targets which do
181 not define a particular regset. */
182 void nto_dummy_supply_regset (struct regcache *regcache, char *regs);
184 int nto_in_dynsym_resolve_code (CORE_ADDR pc);
186 const char *nto_extra_thread_info (struct target_ops *self, struct thread_info *);
188 LONGEST nto_read_auxv_from_initial_stack (CORE_ADDR inital_stack,
190 LONGEST len, size_t sizeof_auxv_t);
192 struct nto_inferior_data *nto_inferior_data (struct inferior *inf);