gdb/gdb_proc_service.h

   1 /* <proc_service.h> replacement for systems that don't have it.
   2    Copyright (C) 2000-2015 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef GDB_PROC_SERVICE_H
  20 #define GDB_PROC_SERVICE_H
  21
  22 #include <sys/types.h>
  23
  24 #ifdef HAVE_PROC_SERVICE_H
  25 #include <proc_service.h>
  26
  27 #else /* HAVE_PROC_SERVICE_H */
  28
  29 /* The following fallback definitions have been imported and adjusted
  30    from glibc's proc_service.h  */
  31
  32 /* Callback interface for libthread_db, functions users must define.
  33    Copyright (C) 1999,2002,2003 Free Software Foundation, Inc.
  34    This file is part of the GNU C Library.
  35
  36    The GNU C Library is free software; you can redistribute it and/or
  37    modify it under the terms of the GNU Lesser General Public
  38    License as published by the Free Software Foundation; either
  39    version 2.1 of the License, or (at your option) any later version.
  40
  41    The GNU C Library is distributed in the hope that it will be useful,
  42    but WITHOUT ANY WARRANTY; without even the implied warranty of
  43    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  44    Lesser General Public License for more details.
  45
  46    You should have received a copy of the GNU Lesser General Public
  47    License along with the GNU C Library; if not, see
  48    <http://www.gnu.org/licenses/>.  */
  49
  50 /* The definitions in this file must correspond to those in the debugger.  */
  51
  52 #ifdef HAVE_SYS_PROCFS_H
  53 #include <sys/procfs.h>
  54 #endif
  55
  56 #include "gregset.h"
  57
  58 /* Functions in this interface return one of these status codes.  */
  59 typedef enum
  60 {
  61   PS_OK,                /* Generic "call succeeded".  */
  62   PS_ERR,               /* Generic error. */
  63   PS_BADPID,            /* Bad process handle.  */
  64   PS_BADLID,            /* Bad LWP identifier.  */
  65   PS_BADADDR,           /* Bad address.  */
  66   PS_NOSYM,             /* Could not find given symbol.  */
  67   PS_NOFREGS            /* FPU register set not available for given LWP.  */
  68 } ps_err_e;
  69
  70 #ifndef HAVE_LWPID_T
  71 typedef unsigned int lwpid_t;
  72 #endif
  73
  74 #ifndef HAVE_PSADDR_T
  75 typedef void *psaddr_t;
  76 #endif
  77
  78 #ifndef HAVE_PRGREGSET_T
  79 typedef gdb_gregset_t prgregset_t;
  80 #endif
  81
  82 #ifndef HAVE_PRFPREGSET_T
  83 typedef gdb_fpregset_t prfpregset_t;
  84 #endif
  85
  86 /* This type is opaque in this interface.  It's defined by the user of
  87    libthread_db.  GDB's version is defined below.  */
  88 struct ps_prochandle;
  89
  90
  91 /* Read or write process memory at the given address.  */
  92 extern ps_err_e ps_pdread (struct ps_prochandle *,
  93                            psaddr_t, void *, size_t);
  94 extern ps_err_e ps_pdwrite (struct ps_prochandle *,
  95                             psaddr_t, const void *, size_t);
  96 extern ps_err_e ps_ptread (struct ps_prochandle *,
  97                            psaddr_t, void *, size_t);
  98 extern ps_err_e ps_ptwrite (struct ps_prochandle *,
  99                             psaddr_t, const void *, size_t);
 100
 101
 102 /* Get and set the given LWP's general or FPU register set.  */
 103 extern ps_err_e ps_lgetregs (struct ps_prochandle *,
 104                              lwpid_t, prgregset_t);
 105 extern ps_err_e ps_lsetregs (struct ps_prochandle *,
 106                              lwpid_t, const prgregset_t);
 107 extern ps_err_e ps_lgetfpregs (struct ps_prochandle *,
 108                                lwpid_t, prfpregset_t *);
 109 extern ps_err_e ps_lsetfpregs (struct ps_prochandle *,
 110                                lwpid_t, const prfpregset_t *);
 111
 112 /* Return the PID of the process.  */
 113 extern pid_t ps_getpid (struct ps_prochandle *);
 114
 115 /* Fetch the special per-thread address associated with the given LWP.
 116    This call is only used on a few platforms (most use a normal register).
 117    The meaning of the `int' parameter is machine-dependent.  */
 118 extern ps_err_e ps_get_thread_area (const struct ps_prochandle *,
 119                                     lwpid_t, int, psaddr_t *);
 120
 121
 122 /* Look up the named symbol in the named DSO in the symbol tables
 123    associated with the process being debugged, filling in *SYM_ADDR
 124    with the corresponding run-time address.  */
 125 extern ps_err_e ps_pglobal_lookup (struct ps_prochandle *,
 126                                    const char *object_name,
 127                                    const char *sym_name,
 128                                    psaddr_t *sym_addr);
 129
 130
 131 /* Stop or continue the entire process.  */
 132 extern ps_err_e ps_pstop (struct ps_prochandle *);
 133 extern ps_err_e ps_pcontinue (struct ps_prochandle *);
 134
 135 /* Stop or continue the given LWP alone.  */
 136 extern ps_err_e ps_lstop (struct ps_prochandle *, lwpid_t);
 137 extern ps_err_e ps_lcontinue (struct ps_prochandle *, lwpid_t);
 138
 139 /* The following are only defined in/called by Solaris.  */
 140
 141 /* Get size of extra register set.  */
 142 extern ps_err_e ps_lgetxregsize (struct ps_prochandle *ph,
 143                                  lwpid_t lwpid, int *xregsize);
 144 /* Get extra register set.  */
 145 extern ps_err_e ps_lgetxregs (struct ps_prochandle *ph, lwpid_t lwpid,
 146                               caddr_t xregset);
 147 extern ps_err_e ps_lsetxregs (struct ps_prochandle *ph, lwpid_t lwpid,
 148                               caddr_t xregset);
 149
 150 /* Log a message (sends to gdb_stderr).  */
 151 extern void ps_plog (const char *fmt, ...);
 152
 153 #endif /* HAVE_PROC_SERVICE_H */
 154
 155 /* Fix-up some broken systems.  */
 156
 157 /* Unfortunately glibc 2.1.3 was released with a broken prfpregset_t
 158    type.  We let configure check for this lossage, and make
 159    appropriate typedefs here.  */
 160
 161 #ifdef PRFPREGSET_T_BROKEN
 162 typedef gdb_fpregset_t gdb_prfpregset_t;
 163 #else
 164 typedef prfpregset_t gdb_prfpregset_t;
 165 #endif
 166
 167 /* GDB specific structure that identifies the target process.  */
 168 struct ps_prochandle
 169 {
 170   /* The LWP we use for memory reads.  */
 171   ptid_t ptid;
 172 };
 173
 174 #endif /* gdb_proc_service.h */