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-rw-r--r--erts/emulator/beam/beam_bp.h171
1 files changed, 128 insertions, 43 deletions
diff --git a/erts/emulator/beam/beam_bp.h b/erts/emulator/beam/beam_bp.h
index 786cbbe9d9..b5d5b3c203 100644
--- a/erts/emulator/beam/beam_bp.h
+++ b/erts/emulator/beam/beam_bp.h
@@ -27,28 +27,46 @@
-/*
-** Common struct to all bp_data_*
-**
-** Two gotchas:
-**
-** 1) The type of bp_data structure in the ring is deduced from the
-** orig_instr field of the structure _before_ in the ring, except for
-** the first structure in the ring that has its instruction in
-** pc[0] of the code to execute.
-**
-** 2) pc[-4] points to the _last_ structure in the ring before the
-** breakpoints are being executed.
-**
-** So, as an example, when a breakpointed function starts to execute,
-** the first instruction that is a breakpoint instruction at pc[0] finds
-** its data at ((BpData *) pc[-4])->next and has to cast that pointer
-** to the correct bp_data type.
+/* A couple of gotchas:
+ *
+ * The breakpoint structure from BeamInstr,
+ * In beam_emu where the instruction counter pointer, I (or pc),
+ * points to the *current* instruction. At that time, if the instruction
+ * is a breakpoint instruction the pc looks like the following,
+ *
+ * I[-5] | op_i_func_info_IaaI | scheduler specific entries
+ * I[-4] | BpData** bpa | --> | BpData * bdas1 | ... | BpData * bdasN |
+ * I[-3] | Tagged Module | | |
+ * I[-2] | Tagged Function | V V
+ * I[-1] | Arity | BpData -> BpData -> BpData -> BpData
+ * I[0] | The bp instruction | ^ * the bp wheel * |
+ * |------------------------------
+ *
+ * Common struct to all bp_data_*
+ *
+ * 1) The type of bp_data structure in the ring is deduced from the
+ * orig_instr field of the structure _before_ in the ring, except for
+ * the first structure in the ring that has its instruction in
+ * pc[0] of the code to execute.
+ * This is valid as long as you don't search for the function while it is
+ * being executed by something else. Or is in the middle of its rotation for
+ * any other reason.
+ * A key, the bp beam instruction, is included for this reason.
+ *
+ * 2) pc[-4][sched_id - 1] points to the _last_ structure in the ring before the
+ * breakpoints are being executed.
+ *
+ * So, as an example, when a breakpointed function starts to execute,
+ * the first instruction that is a breakpoint instruction at pc[0] finds
+ * its data at ((BpData **) pc[-4][sched_id - 1])->next and has to cast that pointer
+ * to the correct bp_data type.
*/
+
typedef struct bp_data {
struct bp_data *next; /* Doubly linked ring pointers */
struct bp_data *prev; /* -"- */
BeamInstr orig_instr; /* The original instruction to execute */
+ BeamInstr this_instr; /* key */
} BpData;
/*
** All the following bp_data_.. structs must begin the same way
@@ -57,26 +75,67 @@ typedef struct bp_data {
typedef struct bp_data_trace {
struct bp_data *next;
struct bp_data *prev;
- BeamInstr orig_instr;
+ BeamInstr orig_instr;
+ BeamInstr this_instr; /* key */
Binary *match_spec;
- Eterm tracer_pid;
+ Eterm tracer_pid;
} BpDataTrace;
typedef struct bp_data_debug {
struct bp_data *next;
struct bp_data *prev;
- BeamInstr orig_instr;
+ BeamInstr orig_instr;
+ BeamInstr this_instr; /* key */
} BpDataDebug;
-typedef struct bp_data_count { /* Call count */
+typedef struct bp_data_count { /* Call count */
struct bp_data *next;
struct bp_data *prev;
BeamInstr orig_instr;
- Sint count;
+ BeamInstr this_instr; /* key */
+ erts_smp_atomic_t acount;
} BpDataCount;
+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 */
+ struct bp_data *next;
+ struct bp_data *prev;
+ BeamInstr orig_instr;
+ BeamInstr this_instr; /* key */
+ Uint pause;
+ Uint n;
+ bp_time_hash_t *hash;
+} BpDataTime;
+
+typedef struct {
+ Uint ms;
+ Uint s;
+ Uint us;
+ Uint *pc;
+} process_breakpoint_time_t; /* used within psd */
+
extern erts_smp_spinlock_t erts_bp_lock;
+#define ERTS_BP_CALL_TIME_SCHEDULE_IN (0)
+#define ERTS_BP_CALL_TIME_SCHEDULE_OUT (1)
+#define ERTS_BP_CALL_TIME_SCHEDULE_EXITING (2)
+
+#define ERTS_BP_CALL_TIME_CALL (0)
+#define ERTS_BP_CALL_TIME_RETURN (1)
+#define ERTS_BP_CALL_TIME_TAIL_CALL (2)
+
#ifdef ERTS_SMP
#define ErtsSmpBPLock(BDC) erts_smp_spin_lock(&erts_bp_lock)
#define ErtsSmpBPUnlock(BDC) erts_smp_spin_unlock(&erts_bp_lock)
@@ -85,31 +144,46 @@ extern erts_smp_spinlock_t erts_bp_lock;
#define ErtsSmpBPUnlock(BDC)
#endif
-#define ErtsCountBreak(pc,instr_result) \
-do { \
- BpDataCount *bdc = (BpDataCount *) (pc)[-4]; \
- \
+ERTS_INLINE Uint bp_sched2ix(void);
+
+#ifdef ERTS_SMP
+#define bp_sched2ix_proc(p) ((p)->scheduler_data->no - 1)
+#else
+#define bp_sched2ix_proc(p) (0)
+#endif
+
+#define ErtsCountBreak(p, pc,instr_result) \
+do { \
+ BpData **bds = (BpData **) (pc)[-4]; \
+ BpDataCount *bdc = NULL; \
+ Uint ix = bp_sched2ix_proc( (p) ); \
+ long count = 0; \
+ \
ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \
- ASSERT(bdc); \
- bdc = (BpDataCount *) bdc->next; \
- ASSERT(bdc); \
- (pc)[-4] = (BeamInstr) bdc; \
- ErtsSmpBPLock(bdc); \
- if (bdc->count >= 0) bdc->count++; \
- ErtsSmpBPUnlock(bdc); \
- *(instr_result) = bdc->orig_instr; \
+ ASSERT(bds); \
+ bdc = (BpDataCount *) bds[ix]; \
+ bdc = (BpDataCount *) bdc->next; \
+ ASSERT(bdc); \
+ bds[ix] = (BpData *) bdc; \
+ count = erts_smp_atomic_read(&bdc->acount); \
+ if (count >= 0) erts_smp_atomic_inc(&bdc->acount); \
+ *(instr_result) = bdc->orig_instr; \
} while (0)
-#define ErtsBreakSkip(pc,instr_result) \
-do { \
- BpData *bd = (BpData *) (pc)[-4]; \
- \
+#define ErtsBreakSkip(p, pc,instr_result) \
+do { \
+ BpData **bds = (BpData **) (pc)[-4]; \
+ BpData *bd = NULL; \
+ Uint ix = bp_sched2ix_proc( (p) ); \
+ \
ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \
- ASSERT(bd); \
- bd = bd->next; \
- ASSERT(bd); \
- (pc)[-4] = (BeamInstr) bd; \
- *(instr_result) = bd->orig_instr; \
+ ASSERT(bds); \
+ bd = bds[ix]; \
+ ASSERT(bd); \
+ bd = bd->next; \
+ ASSERT(bd); \
+ bds[ix] = bd; \
+ *(instr_result) = bd->orig_instr; \
} while (0)
enum erts_break_op{
@@ -159,6 +233,17 @@ 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, Sint *count_ret);
+int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *call_time);
+
+void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type);
+void erts_schedule_time_break(Process *p, Uint out);
+int erts_set_time_break(Eterm mfa[3], int specified, enum erts_break_op);
+int erts_clear_time_break(Eterm mfa[3], int specified);
+
+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);
+BpData *erts_get_time_break(Process *p, BeamInstr *pc);
BeamInstr *erts_find_local_func(Eterm mfa[3]);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 18:20:53 +0000