gdb/nto-tdep.h

   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