gdb/darwin-nat.h

   1 /* Common things used by the various darwin files
   2    Copyright (C) 1995, 1996, 1997, 1999, 2000, 2007, 2008, 2009
   3    Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #ifndef __DARWIN_NAT_H__
  20 #define __DARWIN_NAT_H__
  21
  22 #include <mach/mach.h>
  23 #include "gdb_assert.h"
  24
  25 /* Define the threads vector type.  */
  26 DEF_VEC_I (thread_t);
  27
  28 /* Describe the mach exception handling state for a task.  This state is saved
  29    before being changed and restored when a process is detached.
  30    For more information on these fields see task_get_exception_ports manual
  31    page.  */
  32 struct darwin_exception_info
  33 {
  34   /* Exceptions handled by the port.  */
  35   exception_mask_t masks[EXC_TYPES_COUNT];
  36
  37   /* Ports receiving exception messages.  */
  38   mach_port_t ports[EXC_TYPES_COUNT];
  39
  40   /* Type of messages sent.  */
  41   exception_behavior_t behaviors[EXC_TYPES_COUNT];
  42
  43   /* Type of state to be sent.  */
  44   thread_state_flavor_t flavors[EXC_TYPES_COUNT];
  45
  46   /* Number of elements set.  */
  47   mach_msg_type_number_t count;
  48 };
  49 typedef struct darwin_exception_info darwin_exception_info;
  50
  51 /* Describe an inferior.  */
  52 struct darwin_inferior
  53 {
  54   /* Inferior PID.  */
  55   int pid;
  56
  57   /* Corresponding task port.  */
  58   task_t task;
  59
  60   /* Previous port for request notification on task.  */
  61   mach_port_t prev_not_port;
  62
  63   /* Initial exception handling.  */
  64   darwin_exception_info exception_info;
  65
  66   /* Sorted vector of known threads.  */
  67   VEC(thread_t) *threads;
  68 };
  69 typedef struct darwin_inferior darwin_inferior;
  70
  71 /* Current inferior.  */
  72 extern darwin_inferior *darwin_inf;
  73
  74 /* Exception port.  */
  75 extern mach_port_t darwin_ex_port;
  76
  77 /* Notification port.  */
  78 extern mach_port_t darwin_not_port;
  79
  80 /* Port set.  */
  81 extern mach_port_t darwin_port_set;
  82
  83 /* A copy of mach_host_self ().  */
  84 extern mach_port_t darwin_host_self;
  85
  86 /* ASSERT_FUNCTION is defined in gdb_assert.h (or not).  */
  87 #ifdef ASSERT_FUNCTION
  88 #define MACH_CHECK_ERROR(ret) \
  89   mach_check_error (ret, __FILE__, __LINE__, ASSERT_FUNCTION)
  90 #else
  91 #define MACH_CHECK_ERROR(ret) \
  92   mach_check_error (ret, __FILE__, __LINE__, "??")
  93 #endif
  94
  95 extern void mach_check_error (kern_return_t ret, const char *file,
  96                               unsigned int line, const char *func);
  97
  98 void darwin_set_sstep (thread_t thread, int enable);
  99
 100 /* This one is called in darwin-nat.c, but needs to be provided by the
 101    platform specific nat code.  It allows each platform to add platform specific
 102    stuff to the darwin_ops.  */
 103 extern void darwin_complete_target (struct target_ops *target);
 104
 105 void darwin_check_osabi (darwin_inferior *inf, thread_t thread);
 106
 107 #endif /* __DARWIN_NAT_H__ */