linuxthreads_db/thread_dbP.h

   1 /* Private header for thread debug library.  */
   2 #ifndef _THREAD_DBP_H
   3 #define _THREAD_DBP_H   1
   4
   5 #include <string.h>
   6 #include <unistd.h>
   7 #include "proc_service.h"
   8 #include "thread_db.h"
   9 #include "../linuxthreads/descr.h"
  10
  11
  12 /* Indeces for the symbol names.  */
  13 enum
  14   {
  15     PTHREAD_THREADS_EVENTS = 0,
  16     PTHREAD_LAST_EVENT,
  17     PTHREAD_HANDLES_NUM,
  18     PTHREAD_HANDLES,
  19     PTHREAD_KEYS,
  20     LINUXTHREADS_PTHREAD_THREADS_MAX,
  21     LINUXTHREADS_PTHREAD_KEYS_MAX,
  22     LINUXTHREADS_PTHREAD_SIZEOF_DESCR,
  23     LINUXTHREADS_CREATE_EVENT,
  24     LINUXTHREADS_DEATH_EVENT,
  25     LINUXTHREADS_REAP_EVENT,
  26     LINUXTHREADS_INITIAL_REPORT_EVENTS,
  27     LINUXTHREADS_VERSION,
  28     NUM_MESSAGES
  29   };
  30
  31
  32 /* Comment out the following for less verbose output.  */
  33 #ifndef NDEBUG
  34 # define LOG(c) if (__td_debug) __libc_write (2, c "\n", strlen (c "\n"))
  35 extern int __td_debug;
  36 #else
  37 # define LOG(c)
  38 #endif
  39
  40
  41 /* Handle for a process.  This type is opaque.  */
  42 struct td_thragent
  43 {
  44   /* Delivered by the debugger and we have to pass it back in the
  45      proc callbacks.  */
  46   struct ps_prochandle *ph;
  47
  48   /* Some cached information.  */
  49
  50   /* Address of the `__pthread_handles' array.  */
  51   struct pthread_handle_struct *handles;
  52
  53   /* Address of the `pthread_kyes' array.  */
  54   struct pthread_key_struct *keys;
  55
  56   /* Maximum number of threads.  */
  57   int pthread_threads_max;
  58
  59   /* Maximum number of thread-local data keys.  */
  60   int pthread_keys_max;
  61
  62   /* Size of 2nd level array for thread-local data keys.  */
  63   int pthread_key_2ndlevel_size;
  64
  65   /* Sizeof struct _pthread_descr_struct.  */
  66   int sizeof_descr;
  67
  68   /* Pointer to the `__pthread_threads_events' variable in the target.  */
  69   psaddr_t pthread_threads_eventsp;
  70
  71   /* Pointer to the `__pthread_last_event' variable in the target.  */
  72   psaddr_t pthread_last_event;
  73
  74   /* Pointer to the `__pthread_handles_num' variable.  */
  75   psaddr_t pthread_handles_num;
  76 };
  77
  78
  79 /* Type used internally to keep track of thread agent descriptors.  */
  80 struct agent_list
  81 {
  82   td_thragent_t *ta;
  83   struct agent_list *next;
  84 };
  85
  86 /* List of all known descriptors.  */
  87 extern struct agent_list *__td_agent_list;
  88
  89 /* Function used to test for correct thread agent pointer.  */
  90 static inline int
  91 ta_ok (const td_thragent_t *ta)
  92 {
  93   struct agent_list *runp = __td_agent_list;
  94
  95   if (ta == NULL)
  96     return 0;
  97
  98   while (runp != NULL && runp->ta != ta)
  99     runp = runp->next;
 100
 101   return runp != NULL;
 102 }
 103
 104
 105 /* Internal wrapper around ps_pglobal_lookup.  */
 106 extern int td_lookup (struct ps_prochandle *ps, int idx, psaddr_t *sym_addr);
 107
 108 #endif /* thread_dbP.h */