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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2000-2016. 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 _BEAM_BP_H
#define _BEAM_BP_H
#include "sys.h"
#include "erl_vm.h"
#include "global.h"
typedef struct {
Eterm pid;
Sint count;
ErtsMonotonicTime time;
} bp_data_time_item_t;
typedef struct {
Uint n;
Uint used;
bp_data_time_item_t *item;
} bp_time_hash_t;
typedef struct bp_data_time { /* Call time */
Uint n;
bp_time_hash_t *hash;
erts_refc_t refc;
} BpDataTime;
typedef struct {
ErtsMonotonicTime time;
BeamInstr *pc;
} process_breakpoint_time_t; /* used within psd */
typedef struct {
erts_smp_atomic_t acount;
erts_refc_t refc;
} BpCount;
typedef struct {
erts_smp_atomic_t tracer;
erts_refc_t refc;
} BpMetaTracer;
typedef struct generic_bp_data {
Uint flags;
Binary* local_ms; /* Match spec for local call trace */
Binary* meta_ms; /* Match spec for meta trace */
BpMetaTracer* meta_tracer; /* Meta tracer */
BpCount* count; /* For call count */
BpDataTime* time; /* For time trace */
} GenericBpData;
#define ERTS_NUM_BP_IX 2
typedef struct generic_bp {
BeamInstr orig_instr;
GenericBpData data[ERTS_NUM_BP_IX];
} GenericBp;
#define ERTS_BP_CALL_TIME_SCHEDULE_IN (0)
#define ERTS_BP_CALL_TIME_SCHEDULE_OUT (1)
#define ERTS_BP_CALL_TIME_SCHEDULE_EXITING (2)
#ifdef ERTS_SMP
#define bp_sched2ix_proc(p) (erts_proc_sched_data(p)->thr_id - 1)
#else
#define bp_sched2ix_proc(p) (0)
#endif
enum erts_break_op{
ERTS_BREAK_NOP = 0, /* Must be false */
ERTS_BREAK_SET = !0, /* Must be true */
ERTS_BREAK_RESTART,
ERTS_BREAK_PAUSE
};
typedef Uint32 ErtsBpIndex;
typedef struct {
BeamInstr* pc;
Module* mod;
} BpFunction;
typedef struct {
Uint matched; /* Number matched */
BpFunction* matching; /* Matching functions */
} BpFunctions;
/*
** Function interface exported from beam_bp.c
*/
void erts_bp_init(void);
void erts_prepare_bp_staging(void);
void erts_commit_staged_bp(void);
ERTS_GLB_INLINE ErtsBpIndex erts_active_bp_ix(void);
ERTS_GLB_INLINE ErtsBpIndex erts_staging_bp_ix(void);
void erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified);
void erts_bp_match_export(BpFunctions* f, Eterm mfa[3], int specified);
void erts_bp_free_matched_functions(BpFunctions* f);
void erts_install_breakpoints(BpFunctions* f);
void erts_uninstall_breakpoints(BpFunctions* f);
void erts_consolidate_bp_data(BpFunctions* f, int local);
void erts_consolidate_bif_bp_data(void);
void erts_set_trace_break(BpFunctions *f, Binary *match_spec);
void erts_clear_trace_break(BpFunctions *f);
void erts_set_call_trace_bif(BeamInstr *pc, Binary *match_spec, int local);
void erts_clear_call_trace_bif(BeamInstr *pc, int local);
void erts_set_mtrace_break(BpFunctions *f, Binary *match_spec,
ErtsTracer tracer);
void erts_clear_mtrace_break(BpFunctions *f);
void erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec,
ErtsTracer tracer);
void erts_clear_mtrace_bif(BeamInstr *pc);
void erts_set_debug_break(BpFunctions *f);
void erts_clear_debug_break(BpFunctions *f);
void erts_set_count_break(BpFunctions *f, enum erts_break_op);
void erts_clear_count_break(BpFunctions *f);
void erts_clear_all_breaks(BpFunctions* f);
int erts_clear_module_break(Module *modp);
void erts_clear_export_break(Module *modp, BeamInstr* pc);
BeamInstr erts_generic_breakpoint(Process* c_p, BeamInstr* I, Eterm* reg);
BeamInstr erts_trace_break(Process *p, BeamInstr *pc, Eterm *args,
Uint32 *ret_flags, ErtsTracer *tracer);
int erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, int local);
int erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret,
ErtsTracer *tracer_ret);
int erts_is_mtrace_bif(BeamInstr *pc, Binary **match_spec_ret,
ErtsTracer *tracer_ret);
int erts_is_native_break(BeamInstr *pc);
int erts_is_count_break(BeamInstr *pc, Uint *count_ret);
int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *call_time);
void erts_trace_time_call(Process* c_p, BeamInstr* pc, BpDataTime* bdt);
void erts_trace_time_return(Process* c_p, BeamInstr* pc);
void erts_schedule_time_break(Process *p, Uint out);
void erts_set_time_break(BpFunctions *f, enum erts_break_op);
void erts_clear_time_break(BpFunctions *f);
int erts_is_time_trace_bif(Process *p, BeamInstr *pc, Eterm *call_time);
void erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op);
void erts_clear_time_trace_bif(BeamInstr *pc);
BeamInstr *erts_find_local_func(Eterm mfa[3]);
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
extern erts_smp_atomic32_t erts_active_bp_index;
extern erts_smp_atomic32_t erts_staging_bp_index;
ERTS_GLB_INLINE ErtsBpIndex erts_active_bp_ix(void)
{
return erts_smp_atomic32_read_nob(&erts_active_bp_index);
}
ERTS_GLB_INLINE ErtsBpIndex erts_staging_bp_ix(void)
{
return erts_smp_atomic32_read_nob(&erts_staging_bp_index);
}
#endif
#endif /* _BEAM_BP_H */
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