| /* nto-tdep.h - QNX Neutrino target header. |
| |
| Copyright (C) 2003-2023 Free Software Foundation, Inc. |
| |
| Contributed by QNX Software Systems Ltd. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef NTO_TDEP_H |
| #define NTO_TDEP_H |
| |
| #include "solist.h" |
| #include "osabi.h" |
| #include "regset.h" |
| #include "gdbthread.h" |
| #include "gdbsupport/gdb-checked-static-cast.h" |
| |
| /* Target operations defined for Neutrino targets (<target>-nto-tdep.c). */ |
| |
| struct nto_target_ops |
| { |
| /* The CPUINFO flags from the remote. Currently used by |
| i386 for fxsave but future proofing other hosts. |
| This is initialized in procfs_attach or nto_start_remote |
| depending on our host/target. It would only be invalid |
| if we were talking to an older pdebug which didn't support |
| the cpuinfo message. */ |
| unsigned cpuinfo_flags; |
| |
| /* True if successfully retrieved cpuinfo from remote. */ |
| int cpuinfo_valid; |
| |
| /* Given a register, return an id that represents the Neutrino |
| regset it came from. If reg == -1 update all regsets. */ |
| int (*regset_id) (int); |
| |
| void (*supply_gregset) (struct regcache *, char *); |
| |
| void (*supply_fpregset) (struct regcache *, char *); |
| |
| void (*supply_altregset) (struct regcache *, char *); |
| |
| /* Given a regset, tell gdb about registers stored in data. */ |
| void (*supply_regset) (struct regcache *, int, char *); |
| |
| /* Given a register and regset, calculate the offset into the regset |
| and stuff it into the last argument. If regno is -1, calculate the |
| size of the entire regset. Returns length of data, -1 if unknown |
| regset, 0 if unknown register. */ |
| int (*register_area) (struct gdbarch *, int, int, unsigned *); |
| |
| /* Build the Neutrino register set info into the data buffer. |
| Return -1 if unknown regset, 0 otherwise. */ |
| int (*regset_fill) (const struct regcache *, int, char *); |
| |
| /* Gives the fetch_link_map_offsets function exposure outside of |
| solib-svr4.c so that we can override relocate_section_addresses(). */ |
| struct link_map_offsets *(*fetch_link_map_offsets) (void); |
| |
| /* Used by nto_elf_osabi_sniffer to determine if we're connected to an |
| Neutrino target. */ |
| enum gdb_osabi (*is_nto_target) (bfd *abfd); |
| }; |
| |
| extern struct nto_target_ops current_nto_target; |
| |
| #define nto_cpuinfo_flags (current_nto_target.cpuinfo_flags) |
| |
| #define nto_cpuinfo_valid (current_nto_target.cpuinfo_valid) |
| |
| #define nto_regset_id (current_nto_target.regset_id) |
| |
| #define nto_supply_gregset (current_nto_target.supply_gregset) |
| |
| #define nto_supply_fpregset (current_nto_target.supply_fpregset) |
| |
| #define nto_supply_altregset (current_nto_target.supply_altregset) |
| |
| #define nto_supply_regset (current_nto_target.supply_regset) |
| |
| #define nto_register_area (current_nto_target.register_area) |
| |
| #define nto_regset_fill (current_nto_target.regset_fill) |
| |
| #define nto_fetch_link_map_offsets \ |
| (current_nto_target.fetch_link_map_offsets) |
| |
| #define nto_is_nto_target (current_nto_target.is_nto_target) |
| |
| /* Keep this consistant with neutrino syspage.h. */ |
| enum |
| { |
| CPUTYPE_X86, |
| CPUTYPE_PPC, |
| CPUTYPE_MIPS, |
| CPUTYPE_SPARE, |
| CPUTYPE_ARM, |
| CPUTYPE_SH, |
| CPUTYPE_UNKNOWN |
| }; |
| |
| enum |
| { |
| OSTYPE_QNX4, |
| OSTYPE_NTO |
| }; |
| |
| /* These correspond to the DSMSG_* versions in dsmsgs.h. */ |
| enum |
| { |
| NTO_REG_GENERAL, |
| NTO_REG_FLOAT, |
| NTO_REG_SYSTEM, |
| NTO_REG_ALT, |
| NTO_REG_END |
| }; |
| |
| typedef char qnx_reg64[8]; |
| |
| typedef struct _debug_regs |
| { |
| qnx_reg64 padding[1024]; |
| } nto_regset_t; |
| |
| struct nto_thread_info : public private_thread_info |
| { |
| short tid = 0; |
| unsigned char state = 0; |
| unsigned char flags = 0; |
| std::string name; |
| }; |
| |
| static inline nto_thread_info * |
| get_nto_thread_info (thread_info *thread) |
| { |
| return gdb::checked_static_cast<nto_thread_info *> (thread->priv.get ()); |
| } |
| |
| /* Per-inferior data, common for both procfs and remote. */ |
| struct nto_inferior_data |
| { |
| /* Last stopped flags result from wait function */ |
| unsigned int stopped_flags = 0; |
| |
| /* Last known stopped PC */ |
| CORE_ADDR stopped_pc = 0; |
| }; |
| |
| /* Generic functions in nto-tdep.c. */ |
| |
| void nto_init_solib_absolute_prefix (void); |
| |
| char **nto_parse_redirection (char *start_argv[], const char **in, |
| const char **out, const char **err); |
| |
| void nto_relocate_section_addresses (shobj &, target_section *); |
| |
| int nto_map_arch_to_cputype (const char *); |
| |
| int nto_find_and_open_solib (const char *, unsigned, |
| gdb::unique_xmalloc_ptr<char> *); |
| |
| enum gdb_osabi nto_elf_osabi_sniffer (bfd *abfd); |
| |
| void nto_initialize_signals (void); |
| |
| /* Dummy function for initializing nto_target_ops on targets which do |
| not define a particular regset. */ |
| void nto_dummy_supply_regset (struct regcache *regcache, char *regs); |
| |
| int nto_in_dynsym_resolve_code (CORE_ADDR pc); |
| |
| const char *nto_extra_thread_info (struct target_ops *self, struct thread_info *); |
| |
| LONGEST nto_read_auxv_from_initial_stack (CORE_ADDR initial_stack, |
| gdb_byte *readbuf, |
| LONGEST len, size_t sizeof_auxv_t); |
| |
| struct nto_inferior_data *nto_inferior_data (struct inferior *inf); |
| |
| #endif /* NTO_TDEP_H */ |