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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2000-2011. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights 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;
Uint s_time;
Uint us_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 {
Uint ms;
Uint s;
Uint us;
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 pid;
erts_refc_t refc;
} BpMetaPid;
typedef struct generic_bp_data {
Uint flags;
Binary* local_ms; /* Match spec for local call trace */
Binary* meta_ms; /* Match spec for meta trace */
BpMetaPid* meta_pid; /* Meta trace pid */
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) ((p)->scheduler_data->no - 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_reset,
erts_break_stop
};
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_free_matched_functions(BpFunctions* f);
void erts_install_breakpoints(BpFunctions* f);
void erts_uninstall_breakpoints(BpFunctions* f);
void erts_consolidate_bp_data(BpFunctions* f);
void erts_set_trace_break(BpFunctions *f, Binary *match_spec);
void erts_clear_trace_break(BpFunctions *f);
void erts_set_mtrace_break(BpFunctions *f, Binary *match_spec,
Eterm tracer_pid);
void erts_clear_mtrace_break(BpFunctions *f);
void erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec,
Eterm tracer_pid);
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);
BeamInstr erts_generic_breakpoint(Process* c_p, BeamInstr* I, Eterm* reg);
BeamInstr erts_trace_break(Process *p, BeamInstr *pc, Eterm *args,
Uint32 *ret_flags, Eterm *tracer_pid);
Uint32 erts_bif_mtrace(Process *p, BeamInstr *pc, Eterm *args,
int local, Eterm *tracer_pid);
int erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret);
int erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret,
Eterm *tracer_pid_rte);
int erts_is_mtrace_bif(BeamInstr *pc, Binary **match_spec_ret,
Eterm *tracer_pid_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);
BpDataTime* erts_get_active_time_break(BeamInstr *pc);
BeamInstr *erts_find_local_func(Eterm mfa[3]);
ERTS_GLB_INLINE Uint erts_bp_sched2ix(void);
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
ERTS_GLB_INLINE Uint erts_bp_sched2ix(void)
{
#ifdef ERTS_SMP
ErtsSchedulerData *esdp;
esdp = erts_get_scheduler_data();
return esdp->no - 1;
#else
return 0;
#endif
}
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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