1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _LIBTHREAD_DB__THREAD_DB_H 18 #define _LIBTHREAD_DB__THREAD_DB_H 19 20 #include <pthread.h> 21 #include <signal.h> 22 #include <stdint.h> 23 #include <sys/procfs.h> 24 #include <sys/types.h> 25 26 #define TD_THR_ANY_USER_FLAGS 0xffffffff 27 #define TD_THR_LOWEST_PRIORITY -20 28 #define TD_SIGNO_MASK NULL 29 30 /* td_err_e values */ 31 enum { 32 TD_OK, 33 TD_ERR, 34 TD_NOTHR, 35 TD_NOSV, 36 TD_NOLWP, 37 TD_BADPH, 38 TD_BADTH, 39 TD_BADSH, 40 TD_BADTA, 41 TD_BADKEY, 42 TD_NOMSG, 43 TD_NOFPREGS, 44 TD_NOLIBTHREAD, 45 TD_NOEVENT, 46 TD_NOCAPAB, 47 TD_DBERR, 48 TD_NOAPLIC, 49 TD_NOTSD, 50 TD_MALLOC, 51 TD_PARTIALREG, 52 TD_NOXREGS, 53 TD_VERSION 54 }; 55 56 /* 57 * td_event_e values 58 * NOTE: There is a max of 32 events 59 */ 60 enum { 61 TD_CREATE, 62 TD_DEATH 63 }; 64 65 /* td_thr_state_e values */ 66 enum { 67 TD_THR_ANY_STATE, 68 TD_THR_UNKNOWN, 69 TD_THR_SLEEP, 70 TD_THR_ZOMBIE 71 }; 72 73 typedef int32_t td_err_e; 74 typedef uint32_t td_event_e; 75 typedef uint32_t td_notify_e; 76 typedef uint32_t td_thr_state_e; 77 typedef pthread_t thread_t; 78 79 typedef struct 80 { 81 pid_t pid; 82 struct ps_prochandle *ph; 83 } td_thragent_t; 84 85 typedef struct 86 { 87 pid_t pid; 88 pid_t tid; 89 psaddr_t th_unique; 90 } td_thrhandle_t; 91 92 typedef struct 93 { 94 td_event_e event; 95 td_thrhandle_t const * th_p; 96 union { 97 void * data; 98 } msg; 99 } td_event_msg_t; 100 101 typedef struct 102 { 103 uint32_t events; 104 } td_thr_events_t; 105 106 typedef struct 107 { 108 union { 109 void * bptaddr; 110 } u; 111 } td_notify_t; 112 113 typedef struct 114 { 115 td_thr_state_e ti_state; 116 thread_t ti_tid; // pthread's id for the thread 117 int32_t ti_lid; // the kernel's id for the thread 118 } td_thrinfo_t; 119 120 121 #define td_event_emptyset(set) \ 122 (set)->events = 0 123 124 #define td_event_fillset(set) \ 125 (set)->events = 0xffffffff 126 127 #define td_event_addset(set, n) \ 128 (set)->events |= (1 << n) 129 130 131 typedef int td_thr_iter_f(td_thrhandle_t const *, void *); 132 133 134 struct ps_prochandle; 135 136 #ifdef __cplusplus 137 extern "C"{ 138 #endif 139 140 extern td_err_e td_ta_new(struct ps_prochandle * proc_handle, td_thragent_t ** thread_agent); 141 142 extern td_err_e td_ta_delete(td_thragent_t * ta); 143 144 extern td_err_e td_ta_set_event(td_thragent_t const * agent, td_thr_events_t * event); 145 146 extern td_err_e td_ta_event_addr(td_thragent_t const * agent, td_event_e event, td_notify_t * notify); 147 148 extern td_err_e td_ta_clear_event(const td_thragent_t * ta_arg, 149 td_thr_events_t * event); 150 151 extern td_err_e td_ta_event_getmsg(td_thragent_t const * agent, td_event_msg_t * event); 152 153 extern td_err_e td_ta_map_lwp2thr(td_thragent_t const * agent, lwpid_t lwpid, 154 td_thrhandle_t *th); 155 156 extern td_err_e td_thr_get_info(td_thrhandle_t const * handle, 157 td_thrinfo_t * info); 158 159 extern td_err_e td_thr_event_enable(const td_thrhandle_t * handle, 160 int event); 161 162 extern td_err_e td_ta_thr_iter(td_thragent_t const * agent, td_thr_iter_f * func, void * cookie, 163 td_thr_state_e state, int32_t prio, sigset_t * sigmask, uint32_t user_flags); 164 165 extern char const ** td_symbol_list(void); 166 167 extern td_err_e td_thr_get_info(td_thrhandle_t const * handle, td_thrinfo_t * info); 168 169 extern td_err_e td_thr_tlsbase(const td_thrhandle_t*, unsigned long int, psaddr_t*); 170 171 extern td_err_e td_thr_tls_get_addr(const td_thrhandle_t*, psaddr_t, size_t, psaddr_t*); 172 173 #ifdef __cplusplus 174 } 175 #endif 176 177 #endif 178
