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-rw-r--r--erts/emulator/beam/beam_bp.c131
1 files changed, 46 insertions, 85 deletions
diff --git a/erts/emulator/beam/beam_bp.c b/erts/emulator/beam/beam_bp.c
index 016d0aaa32..5d471d168b 100644
--- a/erts/emulator/beam/beam_bp.c
+++ b/erts/emulator/beam/beam_bp.c
@@ -75,6 +75,16 @@ extern BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */
erts_smp_atomic32_t erts_active_bp_index;
erts_smp_atomic32_t erts_staging_bp_index;
+/*
+ * Inlined helpers
+ */
+
+static ERTS_INLINE ErtsMonotonicTime
+get_mtime(Process *c_p)
+{
+ return erts_get_monotonic_time(ERTS_PROC_GET_SCHDATA(c_p));
+}
+
/* *************************************************************************
** Local prototypes
*/
@@ -97,9 +107,6 @@ static int clear_function_break(BeamInstr *pc, Uint break_flags);
static BpDataTime* get_time_break(BeamInstr *pc);
static GenericBpData* check_break(BeamInstr *pc, Uint break_flags);
-static void bp_time_diff(bp_data_time_item_t *item,
- process_breakpoint_time_t *pbt,
- Uint ms, Uint s, Uint us);
static void bp_meta_unref(BpMetaPid* bmp);
static void bp_count_unref(BpCount* bcp);
@@ -110,13 +117,8 @@ static void uninstall_breakpoint(BeamInstr* pc);
/* bp_hash */
#define BP_TIME_ADD(pi0, pi1) \
do { \
- Uint r; \
(pi0)->count += (pi1)->count; \
- (pi0)->s_time += (pi1)->s_time; \
- (pi0)->us_time += (pi1)->us_time; \
- r = (pi0)->us_time / 1000000; \
- (pi0)->s_time += r; \
- (pi0)->us_time = (pi0)->us_time % 1000000; \
+ (pi0)->time += (pi1)->time; \
} while(0)
static void bp_hash_init(bp_time_hash_t *hash, Uint n);
@@ -152,8 +154,8 @@ erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified)
num_modules = 0;
for (current = 0; current < max_modules; current++) {
modp = module_code(current, code_ix);
- if (modp->curr.code) {
- max_funcs += modp->curr.code[MI_NUM_FUNCTIONS];
+ if (modp->curr.code_hdr) {
+ max_funcs += modp->curr.code_hdr->num_functions;
module[num_modules++] = modp;
}
}
@@ -161,9 +163,9 @@ erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified)
f->matching = (BpFunction *) Alloc(max_funcs*sizeof(BpFunction));
i = 0;
for (current = 0; current < num_modules; current++) {
- BeamInstr** code_base = (BeamInstr **) module[current]->curr.code;
+ BeamCodeHeader* code_hdr = module[current]->curr.code_hdr;
BeamInstr* code;
- Uint num_functions = (Uint)(UWord) code_base[MI_NUM_FUNCTIONS];
+ Uint num_functions = (Uint)(UWord) code_hdr->num_functions;
Uint fi;
if (specified > 0) {
@@ -177,7 +179,7 @@ erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified)
BeamInstr* pc;
int wi;
- code = code_base[MI_FUNCTIONS+fi];
+ code = code_hdr->functions[fi];
ASSERT(code[0] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
pc = code+5;
if (erts_is_native_break(pc)) {
@@ -547,21 +549,21 @@ erts_clear_all_breaks(BpFunctions* f)
int
erts_clear_module_break(Module *modp) {
- BeamInstr** code_base;
+ BeamCodeHeader* code_hdr;
Uint n;
Uint i;
ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
ASSERT(modp);
- code_base = (BeamInstr **) modp->curr.code;
- if (code_base == NULL) {
+ code_hdr = modp->curr.code_hdr;
+ if (!code_hdr) {
return 0;
}
- n = (Uint)(UWord) code_base[MI_NUM_FUNCTIONS];
+ n = (Uint)(UWord) code_hdr->num_functions;
for (i = 0; i < n; ++i) {
BeamInstr* pc;
- pc = code_base[MI_FUNCTIONS+i] + 5;
+ pc = code_hdr->functions[i] + 5;
if (erts_is_native_break(pc)) {
continue;
}
@@ -573,7 +575,7 @@ erts_clear_module_break(Module *modp) {
for (i = 0; i < n; ++i) {
BeamInstr* pc;
- pc = code_base[MI_FUNCTIONS+i] + 5;
+ pc = code_hdr->functions[i] + 5;
if (erts_is_native_break(pc)) {
continue;
}
@@ -862,7 +864,7 @@ do_call_trace(Process* c_p, BeamInstr* I, Eterm* reg,
Eterm* cpp;
int return_to_trace = 0;
BeamInstr w;
- BeamInstr *cp_save;
+ BeamInstr *cp_save = c_p->cp;
Uint32 flags;
Uint need = 0;
Eterm* E = c_p->stop;
@@ -948,7 +950,7 @@ do_call_trace(Process* c_p, BeamInstr* I, Eterm* reg,
void
erts_trace_time_call(Process* c_p, BeamInstr* I, BpDataTime* bdt)
{
- Uint ms,s,us;
+ ErtsMonotonicTime time;
process_breakpoint_time_t *pbt = NULL;
bp_data_time_item_t sitem, *item = NULL;
bp_time_hash_t *h = NULL;
@@ -961,7 +963,7 @@ erts_trace_time_call(Process* c_p, BeamInstr* I, BpDataTime* bdt)
* from the process psd */
pbt = ERTS_PROC_GET_CALL_TIME(c_p);
- get_sys_now(&ms, &s, &us);
+ time = get_mtime(c_p);
/* get pbt
* timestamp = t0
@@ -976,7 +978,7 @@ erts_trace_time_call(Process* c_p, BeamInstr* I, BpDataTime* bdt)
} else {
ASSERT(pbt->pc);
/* add time to previous code */
- bp_time_diff(&sitem, pbt, ms, s, us);
+ sitem.time = time - pbt->time;
sitem.pid = c_p->common.id;
sitem.count = 0;
@@ -1002,8 +1004,7 @@ erts_trace_time_call(Process* c_p, BeamInstr* I, BpDataTime* bdt)
/* Add count to this code */
sitem.pid = c_p->common.id;
sitem.count = 1;
- sitem.s_time = 0;
- sitem.us_time = 0;
+ sitem.time = 0;
/* this breakpoint */
ASSERT(bdt);
@@ -1020,15 +1021,13 @@ erts_trace_time_call(Process* c_p, BeamInstr* I, BpDataTime* bdt)
}
pbt->pc = I;
- pbt->ms = ms;
- pbt->s = s;
- pbt->us = us;
+ pbt->time = time;
}
void
erts_trace_time_return(Process *p, BeamInstr *pc)
{
- Uint ms,s,us;
+ ErtsMonotonicTime time;
process_breakpoint_time_t *pbt = NULL;
bp_data_time_item_t sitem, *item = NULL;
bp_time_hash_t *h = NULL;
@@ -1041,7 +1040,7 @@ erts_trace_time_return(Process *p, BeamInstr *pc)
* from the process psd */
pbt = ERTS_PROC_GET_CALL_TIME(p);
- get_sys_now(&ms,&s,&us);
+ time = get_mtime(p);
/* get pbt
* lookup bdt from code
@@ -1057,7 +1056,7 @@ erts_trace_time_return(Process *p, BeamInstr *pc)
*/
ASSERT(pbt->pc);
- bp_time_diff(&sitem, pbt, ms, s, us);
+ sitem.time = time - pbt->time;
sitem.pid = p->common.id;
sitem.count = 0;
@@ -1080,9 +1079,7 @@ erts_trace_time_return(Process *p, BeamInstr *pc)
}
pbt->pc = pc;
- pbt->ms = ms;
- pbt->s = s;
- pbt->us = us;
+ pbt->time = time;
}
}
@@ -1183,10 +1180,14 @@ int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *retval) {
for(ix = 0; ix < hash.n; ix++) {
item = &(hash.item[ix]);
if (item->pid != NIL) {
+ ErtsMonotonicTime sec, usec;
+ usec = ERTS_MONOTONIC_TO_USEC(item->time);
+ sec = usec / 1000000;
+ usec = usec - sec*1000000;
t = TUPLE4(hp, item->pid,
make_small(item->count),
- make_small(item->s_time),
- make_small(item->us_time));
+ make_small((Uint) sec),
+ make_small((Uint) usec));
hp += 5;
*retval = CONS(hp, t, *retval); hp += 2;
}
@@ -1204,17 +1205,17 @@ int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *retval) {
BeamInstr *
erts_find_local_func(Eterm mfa[3]) {
Module *modp;
- BeamInstr** code_base;
+ BeamCodeHeader* code_hdr;
BeamInstr* code_ptr;
Uint i,n;
if ((modp = erts_get_module(mfa[0], erts_active_code_ix())) == NULL)
return NULL;
- if ((code_base = (BeamInstr **) modp->curr.code) == NULL)
+ if ((code_hdr = modp->curr.code_hdr) == NULL)
return NULL;
- n = (BeamInstr) code_base[MI_NUM_FUNCTIONS];
+ n = (BeamInstr) code_hdr->num_functions;
for (i = 0; i < n; ++i) {
- code_ptr = code_base[MI_FUNCTIONS+i];
+ code_ptr = code_hdr->functions[i];
ASSERT(((BeamInstr) BeamOp(op_i_func_info_IaaI)) == code_ptr[0]);
ASSERT(mfa[0] == ((Eterm) code_ptr[2]) ||
is_nil((Eterm) code_ptr[2]));
@@ -1266,8 +1267,7 @@ static void bp_hash_rehash(bp_time_hash_t *hash, Uint n) {
}
item[hval].pid = hash->item[ix].pid;
item[hval].count = hash->item[ix].count;
- item[hval].s_time = hash->item[ix].s_time;
- item[hval].us_time = hash->item[ix].us_time;
+ item[hval].time = hash->item[ix].time;
}
}
@@ -1315,8 +1315,7 @@ static ERTS_INLINE bp_data_time_item_t * bp_hash_put(bp_time_hash_t *hash, bp_da
item = &(hash->item[hval]);
item->pid = sitem->pid;
- item->s_time = sitem->s_time;
- item->us_time = sitem->us_time;
+ item->time = sitem->time;
item->count = sitem->count;
hash->used++;
@@ -1330,41 +1329,7 @@ static void bp_hash_delete(bp_time_hash_t *hash) {
hash->item = NULL;
}
-static void bp_time_diff(bp_data_time_item_t *item, /* out */
- process_breakpoint_time_t *pbt, /* in */
- Uint ms, Uint s, Uint us) {
- int ds,dus;
-#ifdef DEBUG
- int dms;
-
-
- dms = ms - pbt->ms;
-#endif
- ds = s - pbt->s;
- dus = us - pbt->us;
-
- /* get_sys_now may return zero difftime,
- * this is ok.
- */
-
-#ifdef DEBUG
- ASSERT(dms >= 0 || ds >= 0 || dus >= 0);
-#endif
-
- if (dus < 0) {
- dus += 1000000;
- ds -= 1;
- }
- if (ds < 0) {
- ds += 1000000;
- }
-
- item->s_time = ds;
- item->us_time = dus;
-}
-
void erts_schedule_time_break(Process *p, Uint schedule) {
- Uint ms, s, us;
process_breakpoint_time_t *pbt = NULL;
bp_data_time_item_t sitem, *item = NULL;
bp_time_hash_t *h = NULL;
@@ -1387,8 +1352,7 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
pbdt = get_time_break(pbt->pc);
if (pbdt) {
- get_sys_now(&ms,&s,&us);
- bp_time_diff(&sitem, pbt, ms, s, us);
+ sitem.time = get_mtime(p) - pbt->time;
sitem.pid = p->common.id;
sitem.count = 0;
@@ -1410,10 +1374,7 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
* timestamp it and remove the previous
* timestamp in the psd.
*/
- get_sys_now(&ms,&s,&us);
- pbt->ms = ms;
- pbt->s = s;
- pbt->us = us;
+ pbt->time = get_mtime(p);
break;
default :
ASSERT(0);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 17:38:37 +0000