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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2012-2016. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
#ifndef ERL_TRACE_H__FLAGS__
#define ERL_TRACE_H__FLAGS__
/*
* NOTE! The bits used for these flags matter. The flag with
* the least significant bit will take precedence!
*
* The "now timestamp" has highest precedence due to
* compatibility reasons.
*/
#define ERTS_TRACE_FLG_NOW_TIMESTAMP (1 << 0)
#define ERTS_TRACE_FLG_STRICT_MONOTONIC_TIMESTAMP (1 << 1)
#define ERTS_TRACE_FLG_MONOTONIC_TIMESTAMP (1 << 2)
/*
* The bits used effects trace flags (of processes and ports)
* as well as sequential trace flags. If changed make sure
* these arn't messed up...
*/
#define ERTS_TRACE_TS_TYPE_BITS 3
#define ERTS_TRACE_TS_TYPE_MASK \
((1 << ERTS_TRACE_TS_TYPE_BITS) - 1)
#define ERTS_TFLGS2TSTYPE(TFLGS) \
((int) (((TFLGS) >> ERTS_TRACE_FLAGS_TS_TYPE_SHIFT) \
& ERTS_TRACE_TS_TYPE_MASK))
#define ERTS_SEQTFLGS2TSTYPE(SEQTFLGS) \
((int) (((SEQTFLGS) >> ERTS_SEQ_TRACE_FLAGS_TS_TYPE_SHIFT) \
& ERTS_TRACE_TS_TYPE_MASK))
#define ERTS_SEQTFLGS2TFLGS(SEQTFLGS) \
(ERTS_SEQTFLGS2TSTYPE(SEQTFLGS) << ERTS_TRACE_FLAGS_TS_TYPE_SHIFT)
#endif /* ERL_TRACE_H__FLAGS__ */
#if !defined(ERL_TRACE_H__) && !defined(ERTS_ONLY_INCLUDE_TRACE_FLAGS)
#define ERL_TRACE_H__
struct binary;
/* erl_bif_trace.c */
Eterm erl_seq_trace_info(Process *p, Eterm arg1);
void erts_system_monitor_clear(Process *c_p);
void erts_system_profile_clear(Process *c_p);
/* erl_trace.c */
void erts_init_trace(void);
void erts_trace_check_exiting(Eterm exiting);
ErtsTracer erts_set_system_seq_tracer(Process *c_p,
ErtsProcLocks c_p_locks,
ErtsTracer new);
ErtsTracer erts_get_system_seq_tracer(void);
void erts_change_default_tracing(int setflags, Uint *flagsp,
const ErtsTracer tracerp);
void erts_get_default_tracing(Uint *flagsp, ErtsTracer *tracerp);
void erts_set_system_monitor(Eterm monitor);
Eterm erts_get_system_monitor(void);
int erts_is_tracer_valid(Process* p);
#ifdef ERTS_SMP
void erts_check_my_tracer_proc(Process *);
void erts_block_sys_msg_dispatcher(void);
void erts_release_sys_msg_dispatcher(void);
void erts_foreach_sys_msg_in_q(void (*func)(Eterm,
Eterm,
Eterm,
ErlHeapFragment *));
void erts_queue_error_logger_message(Eterm, Eterm, ErlHeapFragment *);
#endif
void trace_send(Process*, Eterm, Eterm);
void trace_receive(Process *, Eterm);
Uint32 erts_call_trace(Process *p, BeamInstr mfa[], struct binary *match_spec,
Eterm* args, int local, ErtsTracer *tracer);
void erts_trace_return(Process* p, BeamInstr* fi, Eterm retval,
ErtsTracer *tracer);
void erts_trace_exception(Process* p, BeamInstr mfa[], Eterm class, Eterm value,
ErtsTracer *tracer);
void erts_trace_return_to(Process *p, BeamInstr *pc);
void trace_sched(Process*, ErtsProcLocks, Eterm);
void trace_proc(Process*, ErtsProcLocks, Process*, Eterm, Eterm);
void trace_proc_spawn(Process*, Eterm pid, Eterm mod, Eterm func, Eterm args);
void save_calls(Process *p, Export *);
void trace_gc(Process *p, Eterm what);
/* port tracing */
void trace_virtual_sched(Process*, ErtsProcLocks, Eterm);
void trace_sched_ports(Port *pp, Eterm);
void trace_sched_ports_where(Port *pp, Eterm, Eterm);
void trace_port(Port *, Eterm what, Eterm data);
void trace_port_open(Port *, Eterm calling_pid, Eterm drv_name);
/* system_profile */
void erts_set_system_profile(Eterm profile);
Eterm erts_get_system_profile(void);
void profile_scheduler(Eterm scheduler_id, Eterm);
void profile_scheduler_q(Eterm scheduler_id, Eterm state, Eterm no_schedulers, Uint Ms, Uint s, Uint us);
void profile_runnable_proc(Process* p, Eterm status);
void profile_runnable_port(Port* p, Eterm status);
void erts_system_profile_setup_active_schedulers(void);
/* system_monitor */
void monitor_long_gc(Process *p, Uint time);
void monitor_long_schedule_proc(Process *p, BeamInstr *in_i, BeamInstr *out_i, Uint time);
void monitor_long_schedule_port(Port *pp, ErtsPortTaskType type, Uint time);
void monitor_large_heap(Process *p);
void monitor_generic(Process *p, Eterm type, Eterm spec);
Uint erts_trace_flag2bit(Eterm flag);
int erts_trace_flags(Eterm List,
Uint *pMask, ErtsTracer *pTracer, int *pCpuTimestamp);
Eterm erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr *I);
#ifdef ERTS_SMP
void erts_send_pending_trace_msgs(ErtsSchedulerData *esdp);
#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP) \
do { \
if ((ESDP)->pending_trace_msgs) \
erts_send_pending_trace_msgs((ESDP)); \
} while (0)
#else
#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP)
#endif
#define seq_trace_output(token, msg, type, receiver, process) \
seq_trace_output_generic((token), (msg), (type), (receiver), (process), NIL)
#define seq_trace_output_exit(token, msg, type, receiver, exitfrom) \
seq_trace_output_generic((token), (msg), (type), (receiver), NULL, (exitfrom))
void seq_trace_output_generic(Eterm token, Eterm msg, Uint type,
Eterm receiver, Process *process, Eterm exitfrom);
int seq_trace_update_send(Process *process);
Eterm erts_seq_trace(Process *process,
Eterm atom_type, Eterm atom_true_or_false,
int build_result);
struct trace_pattern_flags {
unsigned int breakpoint : 1; /* Set if any other is set */
unsigned int local : 1; /* Local call trace breakpoint */
unsigned int meta : 1; /* Metadata trace breakpoint */
unsigned int call_count : 1; /* Fast call count breakpoint */
unsigned int call_time : 1; /* Fast call time breakpoint */
};
extern const struct trace_pattern_flags erts_trace_pattern_flags_off;
extern int erts_call_time_breakpoint_tracing;
int erts_set_trace_pattern(Process*p, Eterm* mfa, int specified,
struct binary* match_prog_set,
struct binary *meta_match_prog_set,
int on, struct trace_pattern_flags,
ErtsTracer meta_tracer, int is_blocking);
void
erts_get_default_trace_pattern(int *trace_pattern_is_on,
struct binary **match_spec,
struct binary **meta_match_spec,
struct trace_pattern_flags *trace_pattern_flags,
ErtsTracer *meta_tracer);
int erts_is_default_trace_enabled(void);
void erts_bif_trace_init(void);
int erts_finish_breakpointing(void);
/* Nif tracer functions */
int erts_is_tracer_proc_enabled(Process *c_p, ErtsProcLocks c_p_locks,
ErtsPTabElementCommon *t_p);
int erts_is_tracer_enabled(Process *c_p, const ErtsTracer tracer);
Eterm erts_tracer_to_term(Process *p, ErtsTracer tracer);
ErtsTracer erts_term_to_tracer(Eterm prefix, Eterm term);
void erts_tracer_replace(ErtsPTabElementCommon *t_p,
const ErtsTracer new_tracer);
void erts_tracer_update(ErtsTracer *tracer, const ErtsTracer new_tracer);
int erts_tracer_nif_clear(void);
#define erts_tracer_update(t,n) do { if (*(t) != (n)) erts_tracer_update(t,n); } while(0)
#define ERTS_TRACER_CLEAR(t) erts_tracer_update(t, erts_tracer_nil)
static const ErtsTracer
ERTS_DECLARE_DUMMY(erts_tracer_true) = am_true;
static const ErtsTracer
ERTS_DECLARE_DUMMY(erts_tracer_nil) = NIL;
#define ERTS_TRACER_COMPARE(t1, t2) \
(EQ((t1), (t2)))
#define ERTS_TRACER_IS_NIL(t1) ERTS_TRACER_COMPARE(t1, erts_tracer_nil)
#define IS_TRACER_VALID(tracer) \
(ERTS_TRACER_COMPARE(tracer,erts_tracer_true) \
|| ERTS_TRACER_IS_NIL(tracer) \
|| (is_list(tracer) && is_atom(CAR(list_val(tracer)))))
#define ERTS_TRACER_FROM_ETERM(termp) \
((ErtsTracer*)(termp))
#define ERTS_TRACER_PROC_IS_ENABLED(PROC) \
(!ERTS_TRACER_IS_NIL(ERTS_TRACER(PROC)) \
&& erts_is_tracer_proc_enabled(PROC, ERTS_PROC_LOCK_MAIN, &(PROC)->common))
#endif /* ERL_TRACE_H__ */
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