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-rw-r--r--erts/emulator/beam/export.c75
1 files changed, 40 insertions, 35 deletions
diff --git a/erts/emulator/beam/export.c b/erts/emulator/beam/export.c
index 2a19211987..946ffeffb8 100644
--- a/erts/emulator/beam/export.c
+++ b/erts/emulator/beam/export.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1996-2016. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2017. 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.
@@ -41,16 +41,13 @@
static IndexTable export_tables[ERTS_NUM_CODE_IX]; /* Active not locked */
-static erts_smp_atomic_t total_entries_bytes;
-
-#include "erl_smp.h"
+static erts_atomic_t total_entries_bytes;
/* This lock protects the staging export table from concurrent access
* AND it protects the staging table from becoming active.
*/
-erts_smp_mtx_t export_staging_lock;
+erts_mtx_t export_staging_lock;
-extern BeamInstr* em_call_error_handler;
extern BeamInstr* em_call_traced_function;
struct export_entry
@@ -83,19 +80,15 @@ static struct export_blob* entry_to_blob(struct export_entry* ee)
}
void
-export_info(int to, void *to_arg)
+export_info(fmtfn_t to, void *to_arg)
{
-#ifdef ERTS_SMP
int lock = !ERTS_IS_CRASH_DUMPING;
if (lock)
export_staging_lock();
-#endif
index_info(to, to_arg, &export_tables[erts_active_code_ix()]);
hash_info(to, to_arg, &export_tables[erts_staging_code_ix()].htable);
-#ifdef ERTS_SMP
if (lock)
export_staging_unlock();
-#endif
}
@@ -103,7 +96,8 @@ static HashValue
export_hash(struct export_entry* ee)
{
Export* x = ee->ep;
- return EXPORT_HASH(x->code[0], x->code[1], x->code[2]);
+ return EXPORT_HASH(x->info.mfa.module, x->info.mfa.function,
+ x->info.mfa.arity);
}
static int
@@ -111,9 +105,9 @@ export_cmp(struct export_entry* tmpl_e, struct export_entry* obj_e)
{
Export* tmpl = tmpl_e->ep;
Export* obj = obj_e->ep;
- return !(tmpl->code[0] == obj->code[0] &&
- tmpl->code[1] == obj->code[1] &&
- tmpl->code[2] == obj->code[2]);
+ return !(tmpl->info.mfa.module == obj->info.mfa.module &&
+ tmpl->info.mfa.function == obj->info.mfa.function &&
+ tmpl->info.mfa.arity == obj->info.mfa.arity);
}
@@ -128,23 +122,28 @@ export_alloc(struct export_entry* tmpl_e)
Export* obj;
blob = (struct export_blob*) erts_alloc(ERTS_ALC_T_EXPORT, sizeof(*blob));
- erts_smp_atomic_add_nob(&total_entries_bytes, sizeof(*blob));
+ erts_atomic_add_nob(&total_entries_bytes, sizeof(*blob));
obj = &blob->exp;
- obj->fake_op_func_info_for_hipe[0] = 0;
- obj->fake_op_func_info_for_hipe[1] = 0;
- obj->code[0] = tmpl->code[0];
- obj->code[1] = tmpl->code[1];
- obj->code[2] = tmpl->code[2];
- obj->code[3] = (BeamInstr) em_call_error_handler;
- obj->code[4] = 0;
+ obj->info.op = 0;
+ obj->info.u.gen_bp = NULL;
+ obj->info.mfa.module = tmpl->info.mfa.module;
+ obj->info.mfa.function = tmpl->info.mfa.function;
+ obj->info.mfa.arity = tmpl->info.mfa.arity;
+ obj->beam[0] = 0;
+ if (BeamOpsAreInitialized()) {
+ obj->beam[0] = BeamOpCodeAddr(op_call_error_handler);
+ }
+ obj->beam[1] = 0;
for (ix=0; ix<ERTS_NUM_CODE_IX; ix++) {
- obj->addressv[ix] = obj->code+3;
+ obj->addressv[ix] = obj->beam;
blob->entryv[ix].slot.index = -1;
blob->entryv[ix].ep = &blob->exp;
}
ix = 0;
+
+ DBG_TRACE_MFA_P(&obj->info.mfa, "export allocation at %p", obj);
}
else { /* Existing entry in another table, use free entry in blob */
blob = entry_to_blob(tmpl_e);
@@ -163,11 +162,14 @@ export_free(struct export_entry* obj)
obj->slot.index = -1;
for (i=0; i < ERTS_NUM_CODE_IX; i++) {
if (blob->entryv[i].slot.index >= 0) {
+ DBG_TRACE_MFA_P(&blob->exp.info.mfa, "export entry slot %u freed for %p",
+ (obj - blob->entryv), &blob->exp);
return;
}
}
+ DBG_TRACE_MFA_P(&blob->exp.info.mfa, "export blob deallocation at %p", &blob->exp);
erts_free(ERTS_ALC_T_EXPORT, blob);
- erts_smp_atomic_add_nob(&total_entries_bytes, -sizeof(*blob));
+ erts_atomic_add_nob(&total_entries_bytes, -sizeof(*blob));
}
void
@@ -176,8 +178,9 @@ init_export_table(void)
HashFunctions f;
int i;
- erts_smp_mtx_init(&export_staging_lock, "export_tab");
- erts_smp_atomic_init_nob(&total_entries_bytes, 0);
+ erts_mtx_init(&export_staging_lock, "export_tab", NIL,
+ ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC);
+ erts_atomic_init_nob(&total_entries_bytes, 0);
f.hash = (H_FUN) export_hash;
f.cmp = (HCMP_FUN) export_cmp;
@@ -224,7 +227,9 @@ erts_find_export_entry(Eterm m, Eterm f, unsigned int a, ErtsCodeIndex code_ix)
while (b != (HashBucket*) 0) {
Export* ep = ((struct export_entry*) b)->ep;
- if (ep->code[0] == m && ep->code[1] == f && ep->code[2] == a) {
+ if (ep->info.mfa.module == m &&
+ ep->info.mfa.function == f &&
+ ep->info.mfa.arity == a) {
return ep;
}
b = b->next;
@@ -237,9 +242,9 @@ static struct export_entry* init_template(struct export_templ* templ,
{
templ->entry.ep = &templ->exp;
templ->entry.slot.index = -1;
- templ->exp.code[0] = m;
- templ->exp.code[1] = f;
- templ->exp.code[2] = a;
+ templ->exp.info.mfa.module = m;
+ templ->exp.info.mfa.function = f;
+ templ->exp.info.mfa.arity = a;
return &templ->entry;
}
@@ -263,8 +268,8 @@ erts_find_function(Eterm m, Eterm f, unsigned int a, ErtsCodeIndex code_ix)
ee = hash_get(&export_tables[code_ix].htable, init_template(&templ, m, f, a));
if (ee == NULL ||
- (ee->ep->addressv[code_ix] == ee->ep->code+3 &&
- ee->ep->code[3] != (BeamInstr) BeamOp(op_i_generic_breakpoint))) {
+ (ee->ep->addressv[code_ix] == ee->ep->beam &&
+ ! BeamIsOpCode(ee->ep->beam[0], op_i_generic_breakpoint))) {
return NULL;
}
return ee->ep;
@@ -348,7 +353,7 @@ Export *export_list(int i, ErtsCodeIndex code_ix)
int export_list_size(ErtsCodeIndex code_ix)
{
- return export_tables[code_ix].entries;
+ return erts_index_num_entries(&export_tables[code_ix]);
}
int export_table_sz(void)
@@ -364,7 +369,7 @@ int export_table_sz(void)
}
int export_entries_sz(void)
{
- return erts_smp_atomic_read_nob(&total_entries_bytes);
+ return erts_atomic_read_nob(&total_entries_bytes);
}
Export *export_get(Export *e)
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-14 00:42:34 +0000