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Fix memory sharing (#2415)

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- Inherit shared memory from the parent instance, instead of
  trying to look it up by the underlying module. The old method
  works correctly only when every cluster uses different module.
- Use reference count in WASMMemoryInstance/AOTMemoryInstance
  to mark whether the memory is shared or not
- Retire WASMSharedMemNode
- For atomic opcode implementations in the interpreters, use
  a global lock for now
- Update the internal API users
  (wasi-threads, lib-pthread, wasm_runtime_spawn_thread)

Fixes https://github.com/bytecodealliance/wasm-micro-runtime/issues/1962
This commit is contained in:
YAMAMOTO Takashi 2023-08-04 11:18:13 +09:00 committed by GitHub
parent 29761c7216
commit 91592429f4
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
14 changed files with 298 additions and 401 deletions
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65
core/iwasm/aot/aot_runtime.c
View File

@ -339,11 +339,8 @@ memories_deinstantiate(AOTModuleInstance *module_inst)
memory_inst = module_inst->memories[i];
if (memory_inst) {
#if WASM_ENABLE_SHARED_MEMORY != 0
if (memory_inst->is_shared) {
int32 ref_count = shared_memory_dec_reference(
(WASMModuleCommon *)module_inst->module);
bh_assert(ref_count >= 0);
if (shared_memory_is_shared(memory_inst)) {
uint32 ref_count = shared_memory_dec_reference(memory_inst);
/* if the reference count is not zero,
don't free the memory */
if (ref_count > 0)
@ -373,9 +370,10 @@ memories_deinstantiate(AOTModuleInstance *module_inst)
}
static AOTMemoryInstance *
memory_instantiate(AOTModuleInstance *module_inst, AOTModule *module,
AOTMemoryInstance *memory_inst, AOTMemory *memory,
uint32 heap_size, char *error_buf, uint32 error_buf_size)
memory_instantiate(AOTModuleInstance *module_inst, AOTModuleInstance *parent,
AOTModule *module, AOTMemoryInstance *memory_inst,
AOTMemory *memory, uint32 memory_idx, uint32 heap_size,
char *error_buf, uint32 error_buf_size)
{
void *heap_handle;
uint32 num_bytes_per_page = memory->num_bytes_per_page;
@ -396,24 +394,14 @@ memory_instantiate(AOTModuleInstance *module_inst, AOTModule *module,
bool is_shared_memory = memory->memory_flags & 0x02 ? true : false;
/* Shared memory */
if (is_shared_memory) {
if (is_shared_memory && parent != NULL) {
AOTMemoryInstance *shared_memory_instance;
WASMSharedMemNode *node =
wasm_module_get_shared_memory((WASMModuleCommon *)module);
/* If the memory of this module has been instantiated,
return the memory instance directly */
if (node) {
uint32 ref_count;
ref_count = shared_memory_inc_reference((WASMModuleCommon *)module);
bh_assert(ref_count > 0);
shared_memory_instance =
(AOTMemoryInstance *)shared_memory_get_memory_inst(node);
bh_assert(shared_memory_instance);
(void)ref_count;
bh_assert(memory_idx == 0);
bh_assert(parent->memory_count > memory_idx);
shared_memory_instance = parent->memories[memory_idx];
shared_memory_inc_reference(shared_memory_instance);
return shared_memory_instance;
}
}
#endif
if (heap_size > 0 && module->malloc_func_index != (uint32)-1
@ -609,23 +597,12 @@ memory_instantiate(AOTModuleInstance *module_inst, AOTModule *module,
#if WASM_ENABLE_SHARED_MEMORY != 0
if (is_shared_memory) {
memory_inst->is_shared = true;
if (!shared_memory_set_memory_inst(
(WASMModuleCommon *)module,
(WASMMemoryInstanceCommon *)memory_inst)) {
set_error_buf(error_buf, error_buf_size, "allocate memory failed");
goto fail3;
}
memory_inst->ref_count = 1;
}
#endif
return memory_inst;
#if WASM_ENABLE_SHARED_MEMORY != 0
fail3:
if (heap_size > 0)
mem_allocator_destroy(memory_inst->heap_handle);
#endif
fail2:
if (heap_size > 0)
wasm_runtime_free(memory_inst->heap_handle);
@ -654,8 +631,9 @@ aot_get_default_memory(AOTModuleInstance *module_inst)
}
static bool
memories_instantiate(AOTModuleInstance *module_inst, AOTModule *module,
uint32 heap_size, char *error_buf, uint32 error_buf_size)
memories_instantiate(AOTModuleInstance *module_inst, AOTModuleInstance *parent,
AOTModule *module, uint32 heap_size, char *error_buf,
uint32 error_buf_size)
{
uint32 global_index, global_data_offset, base_offset, length;
uint32 i, memory_count = module->memory_count;
@ -672,8 +650,8 @@ memories_instantiate(AOTModuleInstance *module_inst, AOTModule *module,
memories = module_inst->global_table_data.memory_instances;
for (i = 0; i < memory_count; i++, memories++) {
memory_inst = memory_instantiate(module_inst, module, memories,
&module->memories[i], heap_size,
memory_inst = memory_instantiate(module_inst, parent, module, memories,
&module->memories[i], i, heap_size,
error_buf, error_buf_size);
if (!memory_inst) {
return false;
@ -1100,9 +1078,9 @@ check_linked_symbol(AOTModule *module, char *error_buf, uint32 error_buf_size)
}
AOTModuleInstance *
aot_instantiate(AOTModule *module, bool is_sub_inst, WASMExecEnv *exec_env_main,
uint32 stack_size, uint32 heap_size, char *error_buf,
uint32 error_buf_size)
aot_instantiate(AOTModule *module, AOTModuleInstance *parent,
WASMExecEnv *exec_env_main, uint32 stack_size, uint32 heap_size,
char *error_buf, uint32 error_buf_size)
{
AOTModuleInstance *module_inst;
const uint32 module_inst_struct_size =
@ -1112,6 +1090,7 @@ aot_instantiate(AOTModule *module, bool is_sub_inst, WASMExecEnv *exec_env_main,
uint64 total_size, table_size = 0;
uint8 *p;
uint32 i, extra_info_offset;
const bool is_sub_inst = parent != NULL;
/* Check heap size */
heap_size = align_uint(heap_size, 8);
@ -1171,7 +1150,7 @@ aot_instantiate(AOTModule *module, bool is_sub_inst, WASMExecEnv *exec_env_main,
goto fail;
/* Initialize memory space */
if (!memories_instantiate(module_inst, module, heap_size, error_buf,
if (!memories_instantiate(module_inst, parent, module, heap_size, error_buf,
error_buf_size))
goto fail;

8
core/iwasm/aot/aot_runtime.h
View File

@ -406,7 +406,7 @@ aot_unload(AOTModule *module);
* Instantiate a AOT module.
*
* @param module the AOT module to instantiate
* @param is_sub_inst the flag of sub instance
* @param parent the parent module instance
* @param heap_size the default heap size of the module instance, a heap will
* be created besides the app memory space. Both wasm app and native
* function can allocate memory from the heap. If heap_size is 0, the
@ -417,9 +417,9 @@ aot_unload(AOTModule *module);
* @return return the instantiated AOT module instance, NULL if failed
*/
AOTModuleInstance *
aot_instantiate(AOTModule *module, bool is_sub_inst, WASMExecEnv *exec_env_main,
uint32 stack_size, uint32 heap_size, char *error_buf,
uint32 error_buf_size);
aot_instantiate(AOTModule *module, AOTModuleInstance *parent,
WASMExecEnv *exec_env_main, uint32 stack_size, uint32 heap_size,
char *error_buf, uint32 error_buf_size);
/**
* Deinstantiate a AOT module instance, destroy the resources.

12
core/iwasm/common/wasm_memory.c
View File

@ -608,7 +608,7 @@ wasm_enlarge_memory_internal(WASMModuleInstance *module, uint32 inc_page_count)
}
#if WASM_ENABLE_SHARED_MEMORY != 0
if (memory->is_shared) {
if (shared_memory_is_shared(memory)) {
memory->num_bytes_per_page = num_bytes_per_page;
memory->cur_page_count = total_page_count;
memory->max_page_count = max_page_count;
@ -769,15 +769,13 @@ wasm_enlarge_memory(WASMModuleInstance *module, uint32 inc_page_count)
bool ret = false;
#if WASM_ENABLE_SHARED_MEMORY != 0
WASMSharedMemNode *node =
wasm_module_get_shared_memory((WASMModuleCommon *)module->module);
if (node)
os_mutex_lock(&node->shared_mem_lock);
if (module->memory_count > 0)
shared_memory_lock(module->memories[0]);
#endif
ret = wasm_enlarge_memory_internal(module, inc_page_count);
#if WASM_ENABLE_SHARED_MEMORY != 0
if (node)
os_mutex_unlock(&node->shared_mem_lock);
if (module->memory_count > 0)
shared_memory_unlock(module->memories[0]);
#endif
return ret;

33
core/iwasm/common/wasm_runtime_common.c
View File

@ -1196,7 +1196,8 @@ wasm_runtime_unload(WASMModuleCommon *module)
}
WASMModuleInstanceCommon *
wasm_runtime_instantiate_internal(WASMModuleCommon *module, bool is_sub_inst,
wasm_runtime_instantiate_internal(WASMModuleCommon *module,
WASMModuleInstanceCommon *parent,
WASMExecEnv *exec_env_main, uint32 stack_size,
uint32 heap_size, char *error_buf,
uint32 error_buf_size)
@ -1204,14 +1205,14 @@ wasm_runtime_instantiate_internal(WASMModuleCommon *module, bool is_sub_inst,
#if WASM_ENABLE_INTERP != 0
if (module->module_type == Wasm_Module_Bytecode)
return (WASMModuleInstanceCommon *)wasm_instantiate(
(WASMModule *)module, is_sub_inst, exec_env_main, stack_size,
heap_size, error_buf, error_buf_size);
(WASMModule *)module, (WASMModuleInstance *)parent, exec_env_main,
stack_size, heap_size, error_buf, error_buf_size);
#endif
#if WASM_ENABLE_AOT != 0
if (module->module_type == Wasm_Module_AoT)
return (WASMModuleInstanceCommon *)aot_instantiate(
(AOTModule *)module, is_sub_inst, exec_env_main, stack_size,
heap_size, error_buf, error_buf_size);
(AOTModule *)module, (AOTModuleInstance *)parent, exec_env_main,
stack_size, heap_size, error_buf, error_buf_size);
#endif
set_error_buf(error_buf, error_buf_size,
"Instantiate module failed, invalid module type");
@ -1224,7 +1225,7 @@ wasm_runtime_instantiate(WASMModuleCommon *module, uint32 stack_size,
uint32 error_buf_size)
{
return wasm_runtime_instantiate_internal(
module, false, NULL, stack_size, heap_size, error_buf, error_buf_size);
module, NULL, NULL, stack_size, heap_size, error_buf, error_buf_size);
}
void
@ -2310,10 +2311,8 @@ wasm_set_exception(WASMModuleInstance *module_inst, const char *exception)
WASMExecEnv *exec_env = NULL;
#if WASM_ENABLE_SHARED_MEMORY != 0
WASMSharedMemNode *node =
wasm_module_get_shared_memory((WASMModuleCommon *)module_inst->module);
if (node)
os_mutex_lock(&node->shared_mem_lock);
if (module_inst->memory_count > 0)
shared_memory_lock(module_inst->memories[0]);
#endif
if (exception) {
snprintf(module_inst->cur_exception, sizeof(module_inst->cur_exception),
@ -2323,8 +2322,8 @@ wasm_set_exception(WASMModuleInstance *module_inst, const char *exception)
module_inst->cur_exception[0] = '\0';
}
#if WASM_ENABLE_SHARED_MEMORY != 0
if (node)
os_mutex_unlock(&node->shared_mem_lock);
if (module_inst->memory_count > 0)
shared_memory_unlock(module_inst->memories[0]);
#endif
#if WASM_ENABLE_THREAD_MGR != 0
@ -2386,10 +2385,8 @@ wasm_copy_exception(WASMModuleInstance *module_inst, char *exception_buf)
bool has_exception = false;
#if WASM_ENABLE_SHARED_MEMORY != 0
WASMSharedMemNode *node =
wasm_module_get_shared_memory((WASMModuleCommon *)module_inst->module);
if (node)
os_mutex_lock(&node->shared_mem_lock);
if (module_inst->memory_count > 0)
shared_memory_lock(module_inst->memories[0]);
#endif
if (module_inst->cur_exception[0] != '\0') {
/* NULL is passed if the caller is not interested in getting the
@ -2403,8 +2400,8 @@ wasm_copy_exception(WASMModuleInstance *module_inst, char *exception_buf)
has_exception = true;
}
#if WASM_ENABLE_SHARED_MEMORY != 0
if (node)
os_mutex_unlock(&node->shared_mem_lock);
if (module_inst->memory_count > 0)
shared_memory_unlock(module_inst->memories[0]);
#endif
return has_exception;

3
core/iwasm/common/wasm_runtime_common.h
View File

@ -498,7 +498,8 @@ wasm_runtime_unload(WASMModuleCommon *module);
/* Internal API */
WASMModuleInstanceCommon *
wasm_runtime_instantiate_internal(WASMModuleCommon *module, bool is_sub_inst,
wasm_runtime_instantiate_internal(WASMModuleCommon *module,
WASMModuleInstanceCommon *parent,
WASMExecEnv *exec_env_main, uint32 stack_size,
uint32 heap_size, char *error_buf,
uint32 error_buf_size);

197
core/iwasm/common/wasm_shared_memory.c
View File

@ -9,9 +9,16 @@
#include "../libraries/thread-mgr/thread_manager.h"
#endif
static bh_list shared_memory_list_head;
static bh_list *const shared_memory_list = &shared_memory_list_head;
static korp_mutex shared_memory_list_lock;
/*
* Note: this lock can be per memory.
*
* For now, just use a global because:
* - it's a bit cumbersome to extend WASMMemoryInstance w/o breaking
* the AOT ABI.
* - If you care performance, it's better to make the interpreters
* use atomic ops.
*/
static korp_mutex _shared_memory_lock;
/* clang-format off */
enum {
@ -48,17 +55,15 @@ destroy_wait_info(void *wait_info);
bool
wasm_shared_memory_init()
{
if (os_mutex_init(&shared_memory_list_lock) != 0)
if (os_mutex_init(&_shared_memory_lock) != 0)
return false;
/* wait map not exists, create new map */
if (!(wait_map = bh_hash_map_create(32, true, (HashFunc)wait_address_hash,
(KeyEqualFunc)wait_address_equal, NULL,
destroy_wait_info))) {
os_mutex_destroy(&shared_memory_list_lock);
os_mutex_destroy(&_shared_memory_lock);
return false;
}
return true;
}
@ -66,110 +71,79 @@ void
wasm_shared_memory_destroy()
{
bh_hash_map_destroy(wait_map);
os_mutex_destroy(&shared_memory_list_lock);
os_mutex_destroy(&_shared_memory_lock);
}
static WASMSharedMemNode *
search_module(WASMModuleCommon *module)
uint32
shared_memory_inc_reference(WASMMemoryInstance *memory)
{
WASMSharedMemNode *node;
os_mutex_lock(&shared_memory_list_lock);
node = bh_list_first_elem(shared_memory_list);
while (node) {
if (module == node->module) {
os_mutex_unlock(&shared_memory_list_lock);
return node;
}
node = bh_list_elem_next(node);
}
os_mutex_unlock(&shared_memory_list_lock);
return NULL;
bh_assert(shared_memory_is_shared(memory));
uint32 old;
#if BH_ATOMIC_32_IS_ATOMIC == 0
os_mutex_lock(&_shared_memory_lock);
#endif
old = BH_ATOMIC_32_FETCH_ADD(memory->ref_count, 1);
#if BH_ATOMIC_32_IS_ATOMIC == 0
os_mutex_unlock(&_shared_memory_lock);
#endif
bh_assert(old >= 1);
bh_assert(old < UINT32_MAX);
return old + 1;
}
WASMSharedMemNode *
wasm_module_get_shared_memory(WASMModuleCommon *module)
uint32
shared_memory_dec_reference(WASMMemoryInstance *memory)
{
return search_module(module);
bh_assert(shared_memory_is_shared(memory));
uint32 old;
#if BH_ATOMIC_32_IS_ATOMIC == 0
os_mutex_lock(&_shared_memory_lock);
#endif
old = BH_ATOMIC_32_FETCH_SUB(memory->ref_count, 1);
#if BH_ATOMIC_32_IS_ATOMIC == 0
os_mutex_unlock(&_shared_memory_lock);
#endif
bh_assert(old > 0);
return old - 1;
}
int32
shared_memory_inc_reference(WASMModuleCommon *module)
bool
shared_memory_is_shared(WASMMemoryInstance *memory)
{
WASMSharedMemNode *node = search_module(module);
uint32 ref_count = -1;
if (node) {
os_mutex_lock(&node->lock);
ref_count = ++node->ref_count;
os_mutex_unlock(&node->lock);
}
return ref_count;
uint32 old;
#if BH_ATOMIC_32_IS_ATOMIC == 0
os_mutex_lock(&_shared_memory_lock);
#endif
old = BH_ATOMIC_32_LOAD(memory->ref_count);
#if BH_ATOMIC_32_IS_ATOMIC == 0
os_mutex_unlock(&_shared_memory_lock);
#endif
return old > 0;
}
int32
shared_memory_dec_reference(WASMModuleCommon *module)
static korp_mutex *
shared_memory_get_lock_pointer(WASMMemoryInstance *memory)
{
WASMSharedMemNode *node = search_module(module);
uint32 ref_count = 0;
if (node) {
os_mutex_lock(&node->lock);
ref_count = --node->ref_count;
os_mutex_unlock(&node->lock);
if (ref_count == 0) {
os_mutex_lock(&shared_memory_list_lock);
bh_list_remove(shared_memory_list, node);
os_mutex_unlock(&shared_memory_list_lock);
os_mutex_destroy(&node->shared_mem_lock);
os_mutex_destroy(&node->lock);
wasm_runtime_free(node);
}
return ref_count;
}
return -1;
bh_assert(memory != NULL);
return &_shared_memory_lock;
}
WASMMemoryInstanceCommon *
shared_memory_get_memory_inst(WASMSharedMemNode *node)
void
shared_memory_lock(WASMMemoryInstance *memory)
{
return node->memory_inst;
/*
* Note: exception logic is currently abusing this lock.
* cf. https://github.com/bytecodealliance/wasm-micro-runtime/issues/2407
*/
bh_assert(memory != NULL);
os_mutex_lock(&_shared_memory_lock);
}
WASMSharedMemNode *
shared_memory_set_memory_inst(WASMModuleCommon *module,
WASMMemoryInstanceCommon *memory)
void
shared_memory_unlock(WASMMemoryInstance *memory)
{
WASMSharedMemNode *node;
bh_list_status ret;
if (!(node = wasm_runtime_malloc(sizeof(WASMSharedMemNode))))
return NULL;
node->module = module;
node->memory_inst = memory;
node->ref_count = 1;
if (os_mutex_init(&node->shared_mem_lock) != 0) {
wasm_runtime_free(node);
return NULL;
}
if (os_mutex_init(&node->lock) != 0) {
os_mutex_destroy(&node->shared_mem_lock);
wasm_runtime_free(node);
return NULL;
}
os_mutex_lock(&shared_memory_list_lock);
ret = bh_list_insert(shared_memory_list, node);
bh_assert(ret == BH_LIST_SUCCESS);
os_mutex_unlock(&shared_memory_list_lock);
(void)ret;
return node;
bh_assert(memory != NULL);
os_mutex_unlock(&_shared_memory_lock);
}
/* Atomics wait && notify APIs */
@ -307,7 +281,7 @@ wasm_runtime_atomic_wait(WASMModuleInstanceCommon *module, void *address,
WASMModuleInstance *module_inst = (WASMModuleInstance *)module;
AtomicWaitInfo *wait_info;
AtomicWaitNode *wait_node;
WASMSharedMemNode *node;
korp_mutex *lock;
#if WASM_ENABLE_THREAD_MGR != 0
WASMExecEnv *exec_env;
#endif
@ -322,7 +296,7 @@ wasm_runtime_atomic_wait(WASMModuleInstanceCommon *module, void *address,
}
/* Currently we have only one memory instance */
if (!module_inst->memories[0]->is_shared) {
if (!shared_memory_is_shared(module_inst->memories[0])) {
wasm_runtime_set_exception(module, "expected shared memory");
return -1;
}
@ -340,30 +314,29 @@ wasm_runtime_atomic_wait(WASMModuleInstanceCommon *module, void *address,
bh_assert(exec_env);
#endif
node = search_module((WASMModuleCommon *)module_inst->module);
bh_assert(node);
lock = shared_memory_get_lock_pointer(module_inst->memories[0]);
/* Lock the shared_mem_lock for the whole atomic wait process,
and use it to os_cond_reltimedwait */
os_mutex_lock(&node->shared_mem_lock);
os_mutex_lock(lock);
no_wait = (!wait64 && *(uint32 *)address != (uint32)expect)
|| (wait64 && *(uint64 *)address != expect);
if (no_wait) {
os_mutex_unlock(&node->shared_mem_lock);
os_mutex_unlock(lock);
return 1;
}
if (!(wait_node = wasm_runtime_malloc(sizeof(AtomicWaitNode)))) {
os_mutex_unlock(&node->shared_mem_lock);
os_mutex_unlock(lock);
wasm_runtime_set_exception(module, "failed to create wait node");
return -1;
}
memset(wait_node, 0, sizeof(AtomicWaitNode));
if (0 != os_cond_init(&wait_node->wait_cond)) {
os_mutex_unlock(&node->shared_mem_lock);
os_mutex_unlock(lock);
wasm_runtime_free(wait_node);
wasm_runtime_set_exception(module, "failed to init wait cond");
return -1;
@ -375,7 +348,7 @@ wasm_runtime_atomic_wait(WASMModuleInstanceCommon *module, void *address,
wait_info = acquire_wait_info(address, wait_node);
if (!wait_info) {
os_mutex_unlock(&node->shared_mem_lock);
os_mutex_unlock(lock);
os_cond_destroy(&wait_node->wait_cond);
wasm_runtime_free(wait_node);
wasm_runtime_set_exception(module, "failed to acquire wait_info");
@ -390,7 +363,7 @@ wasm_runtime_atomic_wait(WASMModuleInstanceCommon *module, void *address,
if (timeout < 0) {
/* wait forever until it is notified or terminatied
here we keep waiting and checking every second */
os_cond_reltimedwait(&wait_node->wait_cond, &node->shared_mem_lock,
os_cond_reltimedwait(&wait_node->wait_cond, lock,
(uint64)timeout_1sec);
if (wait_node->status == S_NOTIFIED /* notified by atomic.notify */
#if WASM_ENABLE_THREAD_MGR != 0
@ -404,8 +377,7 @@ wasm_runtime_atomic_wait(WASMModuleInstanceCommon *module, void *address,
else {
timeout_wait =
timeout_left < timeout_1sec ? timeout_left : timeout_1sec;
os_cond_reltimedwait(&wait_node->wait_cond, &node->shared_mem_lock,
timeout_wait);
os_cond_reltimedwait(&wait_node->wait_cond, lock, timeout_wait);
if (wait_node->status == S_NOTIFIED /* notified by atomic.notify */
|| timeout_left <= timeout_wait /* time out */
#if WASM_ENABLE_THREAD_MGR != 0
@ -433,7 +405,7 @@ wasm_runtime_atomic_wait(WASMModuleInstanceCommon *module, void *address,
/* Release wait info if no wait nodes are attached */
map_try_release_wait_info(wait_map, wait_info, address);
os_mutex_unlock(&node->shared_mem_lock);
os_mutex_unlock(lock);
return is_timeout ? 2 : 0;
}
@ -445,7 +417,7 @@ wasm_runtime_atomic_notify(WASMModuleInstanceCommon *module, void *address,
WASMModuleInstance *module_inst = (WASMModuleInstance *)module;
uint32 notify_result;
AtomicWaitInfo *wait_info;
WASMSharedMemNode *node;
korp_mutex *lock;
bool out_of_bounds;
bh_assert(module->module_type == Wasm_Module_Bytecode
@ -461,31 +433,30 @@ wasm_runtime_atomic_notify(WASMModuleInstanceCommon *module, void *address,
}
/* Currently we have only one memory instance */
if (!module_inst->memories[0]->is_shared) {
if (!shared_memory_is_shared(module_inst->memories[0])) {
/* Always return 0 for ushared linear memory since there is
no way to create a waiter on it */
return 0;
}
node = search_module((WASMModuleCommon *)module_inst->module);
bh_assert(node);
lock = shared_memory_get_lock_pointer(module_inst->memories[0]);
/* Lock the shared_mem_lock for the whole atomic notify process,
and use it to os_cond_signal */
os_mutex_lock(&node->shared_mem_lock);
os_mutex_lock(lock);
wait_info = acquire_wait_info(address, NULL);
/* Nobody wait on this address */
if (!wait_info) {
os_mutex_unlock(&node->shared_mem_lock);
os_mutex_unlock(lock);
return 0;
}
/* Notify each wait node in the wait list */
notify_result = notify_wait_list(wait_info->wait_list, count);
os_mutex_unlock(&node->shared_mem_lock);
os_mutex_unlock(lock);
return notify_result;
}

44
core/iwasm/common/wasm_shared_memory.h
View File

@ -7,53 +7,33 @@
#define _WASM_SHARED_MEMORY_H
#include "bh_common.h"
#if WASM_ENABLE_INTERP != 0
#include "wasm_runtime.h"
#endif
#if WASM_ENABLE_AOT != 0
#include "aot_runtime.h"
#endif
#include "../interpreter/wasm_runtime.h"
#include "wasm_runtime_common.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct WASMSharedMemNode {
bh_list_link l;
/* Lock */
korp_mutex lock;
/* The module reference */
WASMModuleCommon *module;
/* The memory information */
WASMMemoryInstanceCommon *memory_inst;
/* Lock used for atomic operations */
korp_mutex shared_mem_lock;
/* reference count */
uint32 ref_count;
} WASMSharedMemNode;
bool
wasm_shared_memory_init();
void
wasm_shared_memory_destroy();
WASMSharedMemNode *
wasm_module_get_shared_memory(WASMModuleCommon *module);
uint32
shared_memory_inc_reference(WASMMemoryInstance *memory);
int32
shared_memory_inc_reference(WASMModuleCommon *module);
uint32
shared_memory_dec_reference(WASMMemoryInstance *memory);
int32
shared_memory_dec_reference(WASMModuleCommon *module);
bool
shared_memory_is_shared(WASMMemoryInstance *memory);
WASMMemoryInstanceCommon *
shared_memory_get_memory_inst(WASMSharedMemNode *node);
void
shared_memory_lock(WASMMemoryInstance *memory);
WASMSharedMemNode *
shared_memory_set_memory_inst(WASMModuleCommon *module,
WASMMemoryInstanceCommon *memory);
void
shared_memory_unlock(WASMMemoryInstance *memory);
uint32
wasm_runtime_atomic_wait(WASMModuleInstanceCommon *module, void *address,

116
core/iwasm/interpreter/wasm_interp_classic.c
View File

@ -710,28 +710,28 @@ trunc_f64_to_int(WASMModuleInstance *module, uint32 *frame_sp, float64 src_min,
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint32)(*(uint8 *)maddr); \
*(uint8 *)maddr = (uint8)(readv op sval); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else if (opcode == WASM_OP_ATOMIC_RMW_I32_##OP_NAME##16_U) { \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint32)LOAD_U16(maddr); \
STORE_U16(maddr, (uint16)(readv op sval)); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else { \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = LOAD_I32(maddr); \
STORE_U32(maddr, readv op sval); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
PUSH_I32(readv); \
break; \
@ -750,39 +750,39 @@ trunc_f64_to_int(WASMModuleInstance *module, uint32 *frame_sp, float64 src_min,
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint64)(*(uint8 *)maddr); \
*(uint8 *)maddr = (uint8)(readv op sval); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else if (opcode == WASM_OP_ATOMIC_RMW_I64_##OP_NAME##16_U) { \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint64)LOAD_U16(maddr); \
STORE_U16(maddr, (uint16)(readv op sval)); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else if (opcode == WASM_OP_ATOMIC_RMW_I64_##OP_NAME##32_U) { \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint64)LOAD_U32(maddr); \
STORE_U32(maddr, (uint32)(readv op sval)); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else { \
uint64 op_result; \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 8, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint64)LOAD_I64(maddr); \
op_result = readv op sval; \
STORE_I64(maddr, op_result); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
PUSH_I64(readv); \
break; \
@ -1156,10 +1156,6 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
WASMFunctionInstance *cur_func,
WASMInterpFrame *prev_frame)
{
#if WASM_ENABLE_SHARED_MEMORY != 0
WASMSharedMemNode *node =
wasm_module_get_shared_memory((WASMModuleCommon *)module->module);
#endif
WASMMemoryInstance *memory = wasm_get_default_memory(module);
#if !defined(OS_ENABLE_HW_BOUND_CHECK) \
|| WASM_CPU_SUPPORTS_UNALIGNED_ADDR_ACCESS == 0 \
@ -3526,23 +3522,23 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
if (opcode == WASM_OP_ATOMIC_I32_LOAD8_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint32)(*(uint8 *)maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I32_LOAD16_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint32)LOAD_U16(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = LOAD_I32(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
PUSH_I32(readv);
@ -3561,30 +3557,30 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
if (opcode == WASM_OP_ATOMIC_I64_LOAD8_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)(*(uint8 *)maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I64_LOAD16_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_U16(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I64_LOAD32_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_U32(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 8, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = LOAD_I64(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
PUSH_I64(readv);
@ -3603,23 +3599,23 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
if (opcode == WASM_OP_ATOMIC_I32_STORE8) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
*(uint8 *)maddr = (uint8)sval;
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I32_STORE16) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
STORE_U16(maddr, (uint16)sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
STORE_U32(maddr, sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
break;
}
@ -3637,30 +3633,30 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
if (opcode == WASM_OP_ATOMIC_I64_STORE8) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
*(uint8 *)maddr = (uint8)sval;
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I64_STORE16) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
STORE_U16(maddr, (uint16)sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I64_STORE32) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
STORE_U32(maddr, (uint32)sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 8, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
PUT_I64_TO_ADDR((uint32 *)maddr, sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
break;
}
@ -3680,32 +3676,32 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
CHECK_ATOMIC_MEMORY_ACCESS();
expect = (uint8)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint32)(*(uint8 *)maddr);
if (readv == expect)
*(uint8 *)maddr = (uint8)(sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_RMW_I32_CMPXCHG16_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
expect = (uint16)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint32)LOAD_U16(maddr);
if (readv == expect)
STORE_U16(maddr, (uint16)(sval));
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = LOAD_I32(maddr);
if (readv == expect)
STORE_U32(maddr, sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
PUSH_I32(readv);
break;
@ -3726,43 +3722,43 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
CHECK_ATOMIC_MEMORY_ACCESS();
expect = (uint8)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)(*(uint8 *)maddr);
if (readv == expect)
*(uint8 *)maddr = (uint8)(sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_RMW_I64_CMPXCHG16_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
expect = (uint16)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_U16(maddr);
if (readv == expect)
STORE_U16(maddr, (uint16)(sval));
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_RMW_I64_CMPXCHG32_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
expect = (uint32)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_U32(maddr);
if (readv == expect)
STORE_U32(maddr, (uint32)(sval));
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 8, maddr);
CHECK_ATOMIC_MEMORY_ACCESS();
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_I64(maddr);
if (readv == expect)
STORE_I64(maddr, sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
PUSH_I64(readv);
break;

116
core/iwasm/interpreter/wasm_interp_fast.c
View File

@ -482,28 +482,28 @@ LOAD_PTR(void *addr)
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(1); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint32)(*(uint8 *)maddr); \
*(uint8 *)maddr = (uint8)(readv op sval); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else if (opcode == WASM_OP_ATOMIC_RMW_I32_##OP_NAME##16_U) { \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(2); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint32)LOAD_U16(maddr); \
STORE_U16(maddr, (uint16)(readv op sval)); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else { \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(4); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = LOAD_I32(maddr); \
STORE_U32(maddr, readv op sval); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
PUSH_I32(readv); \
break; \
@ -522,39 +522,39 @@ LOAD_PTR(void *addr)
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(1); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint64)(*(uint8 *)maddr); \
*(uint8 *)maddr = (uint8)(readv op sval); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else if (opcode == WASM_OP_ATOMIC_RMW_I64_##OP_NAME##16_U) { \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(2); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint64)LOAD_U16(maddr); \
STORE_U16(maddr, (uint16)(readv op sval)); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else if (opcode == WASM_OP_ATOMIC_RMW_I64_##OP_NAME##32_U) { \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(4); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint64)LOAD_U32(maddr); \
STORE_U32(maddr, (uint32)(readv op sval)); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
else { \
uint64 op_result; \
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 8, maddr); \
CHECK_ATOMIC_MEMORY_ACCESS(8); \
\
os_mutex_lock(&node->shared_mem_lock); \
shared_memory_lock(memory); \
readv = (uint64)LOAD_I64(maddr); \
op_result = readv op sval; \
STORE_I64(maddr, op_result); \
os_mutex_unlock(&node->shared_mem_lock); \
shared_memory_unlock(memory); \
} \
PUSH_I64(readv); \
break; \
@ -1166,10 +1166,6 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
WASMFunctionInstance *cur_func,
WASMInterpFrame *prev_frame)
{
#if WASM_ENABLE_SHARED_MEMORY != 0
WASMSharedMemNode *node =
wasm_module_get_shared_memory((WASMModuleCommon *)module->module);
#endif
WASMMemoryInstance *memory = wasm_get_default_memory(module);
#if !defined(OS_ENABLE_HW_BOUND_CHECK) \
|| WASM_CPU_SUPPORTS_UNALIGNED_ADDR_ACCESS == 0 \
@ -3353,23 +3349,23 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
if (opcode == WASM_OP_ATOMIC_I32_LOAD8_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(1);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint32)(*(uint8 *)maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I32_LOAD16_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(2);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint32)LOAD_U16(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(4);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = LOAD_I32(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
PUSH_I32(readv);
@ -3388,30 +3384,30 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
if (opcode == WASM_OP_ATOMIC_I64_LOAD8_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(1);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)(*(uint8 *)maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I64_LOAD16_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(2);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_U16(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I64_LOAD32_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(4);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_U32(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 8, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(8);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = LOAD_I64(maddr);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
PUSH_I64(readv);
@ -3429,23 +3425,23 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
if (opcode == WASM_OP_ATOMIC_I32_STORE8) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(1);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
*(uint8 *)maddr = (uint8)sval;
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I32_STORE16) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(2);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
STORE_U16(maddr, (uint16)sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(4);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
STORE_U32(maddr, sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
break;
}
@ -3463,30 +3459,30 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
if (opcode == WASM_OP_ATOMIC_I64_STORE8) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 1, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(1);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
*(uint8 *)maddr = (uint8)sval;
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I64_STORE16) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(2);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
STORE_U16(maddr, (uint16)sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_I64_STORE32) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(4);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
STORE_U32(maddr, (uint32)sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 8, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(8);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
STORE_I64(maddr, sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
break;
}
@ -3506,32 +3502,32 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
CHECK_ATOMIC_MEMORY_ACCESS(1);
expect = (uint8)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint32)(*(uint8 *)maddr);
if (readv == expect)
*(uint8 *)maddr = (uint8)(sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_RMW_I32_CMPXCHG16_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(2);
expect = (uint16)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint32)LOAD_U16(maddr);
if (readv == expect)
STORE_U16(maddr, (uint16)(sval));
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(4);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = LOAD_I32(maddr);
if (readv == expect)
STORE_U32(maddr, sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
PUSH_I32(readv);
break;
@ -3552,43 +3548,43 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
CHECK_ATOMIC_MEMORY_ACCESS(1);
expect = (uint8)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)(*(uint8 *)maddr);
if (readv == expect)
*(uint8 *)maddr = (uint8)(sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_RMW_I64_CMPXCHG16_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 2, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(2);
expect = (uint16)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_U16(maddr);
if (readv == expect)
STORE_U16(maddr, (uint16)(sval));
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else if (opcode == WASM_OP_ATOMIC_RMW_I64_CMPXCHG32_U) {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 4, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(4);
expect = (uint32)expect;
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_U32(maddr);
if (readv == expect)
STORE_U32(maddr, (uint32)(sval));
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
else {
CHECK_BULK_MEMORY_OVERFLOW(addr + offset, 8, maddr);
CHECK_ATOMIC_MEMORY_ACCESS(8);
os_mutex_lock(&node->shared_mem_lock);
shared_memory_lock(memory);
readv = (uint64)LOAD_I64(maddr);
if (readv == expect)
STORE_I64(maddr, sval);
os_mutex_unlock(&node->shared_mem_lock);
shared_memory_unlock(memory);
}
PUSH_I64(readv);
break;

70
core/iwasm/interpreter/wasm_runtime.c
View File

@ -122,11 +122,8 @@ memories_deinstantiate(WASMModuleInstance *module_inst,
}
#endif
#if WASM_ENABLE_SHARED_MEMORY != 0
if (memories[i]->is_shared) {
int32 ref_count = shared_memory_dec_reference(
(WASMModuleCommon *)module_inst->module);
bh_assert(ref_count >= 0);
if (shared_memory_is_shared(memories[i])) {
uint32 ref_count = shared_memory_dec_reference(memories[i]);
/* if the reference count is not zero,
don't free the memory */
if (ref_count > 0)
@ -159,7 +156,8 @@ memories_deinstantiate(WASMModuleInstance *module_inst,
}
static WASMMemoryInstance *
memory_instantiate(WASMModuleInstance *module_inst, WASMMemoryInstance *memory,
memory_instantiate(WASMModuleInstance *module_inst, WASMModuleInstance *parent,
WASMMemoryInstance *memory, uint32 memory_idx,
uint32 num_bytes_per_page, uint32 init_page_count,
uint32 max_page_count, uint32 heap_size, uint32 flags,
char *error_buf, uint32 error_buf_size)
@ -180,23 +178,12 @@ memory_instantiate(WASMModuleInstance *module_inst, WASMMemoryInstance *memory,
bool is_shared_memory = flags & 0x02 ? true : false;
/* shared memory */
if (is_shared_memory) {
WASMSharedMemNode *node = wasm_module_get_shared_memory(
(WASMModuleCommon *)module_inst->module);
/* If the memory of this module has been instantiated,
return the memory instance directly */
if (node) {
uint32 ref_count;
ref_count = shared_memory_inc_reference(
(WASMModuleCommon *)module_inst->module);
bh_assert(ref_count > 0);
memory = (WASMMemoryInstance *)shared_memory_get_memory_inst(node);
bh_assert(memory);
(void)ref_count;
if (is_shared_memory && parent != NULL) {
bh_assert(parent->memory_count > memory_idx);
memory = parent->memories[memory_idx];
shared_memory_inc_reference(memory);
return memory;
}
}
#endif /* end of WASM_ENABLE_SHARED_MEMORY */
if (heap_size > 0 && module_inst->module->malloc_function != (uint32)-1
@ -388,24 +375,13 @@ memory_instantiate(WASMModuleInstance *module_inst, WASMMemoryInstance *memory,
#if WASM_ENABLE_SHARED_MEMORY != 0
if (is_shared_memory) {
memory->is_shared = true;
if (!shared_memory_set_memory_inst(
(WASMModuleCommon *)module_inst->module,
(WASMMemoryInstanceCommon *)memory)) {
set_error_buf(error_buf, error_buf_size, "allocate memory failed");
goto fail4;
}
memory->ref_count = 1;
}
#endif
LOG_VERBOSE("Memory instantiate success.");
return memory;
#if WASM_ENABLE_SHARED_MEMORY != 0
fail4:
if (heap_size > 0)
mem_allocator_destroy(memory->heap_handle);
#endif
fail3:
if (heap_size > 0)
wasm_runtime_free(memory->heap_handle);
@ -428,7 +404,8 @@ fail1:
*/
static WASMMemoryInstance **
memories_instantiate(const WASMModule *module, WASMModuleInstance *module_inst,
uint32 heap_size, char *error_buf, uint32 error_buf_size)
WASMModuleInstance *parent, uint32 heap_size,
char *error_buf, uint32 error_buf_size)
{
WASMImport *import;
uint32 mem_index = 0, i,
@ -474,26 +451,29 @@ memories_instantiate(const WASMModule *module, WASMModuleInstance *module_inst,
else
#endif
{
if (!(memories[mem_index++] = memory_instantiate(
module_inst, memory, num_bytes_per_page, init_page_count,
max_page_count, actual_heap_size, flags, error_buf,
error_buf_size))) {
if (!(memories[mem_index] = memory_instantiate(
module_inst, parent, memory, mem_index,
num_bytes_per_page, init_page_count, max_page_count,
actual_heap_size, flags, error_buf, error_buf_size))) {
memories_deinstantiate(module_inst, memories, memory_count);
return NULL;
}
mem_index++;
}
}
/* instantiate memories from memory section */
for (i = 0; i < module->memory_count; i++, memory++) {
if (!(memories[mem_index++] = memory_instantiate(
module_inst, memory, module->memories[i].num_bytes_per_page,
if (!(memories[mem_index] = memory_instantiate(
module_inst, parent, memory, mem_index,
module->memories[i].num_bytes_per_page,
module->memories[i].init_page_count,
module->memories[i].max_page_count, heap_size,
module->memories[i].flags, error_buf, error_buf_size))) {
memories_deinstantiate(module_inst, memories, memory_count);
return NULL;
}
mem_index++;
}
bh_assert(mem_index == memory_count);
@ -1301,7 +1281,7 @@ sub_module_instantiate(WASMModule *module, WASMModuleInstance *module_inst,
WASMModuleInstance *sub_module_inst = NULL;
sub_module_inst =
wasm_instantiate(sub_module, false, NULL, stack_size, heap_size,
wasm_instantiate(sub_module, NULL, NULL, stack_size, heap_size,
error_buf, error_buf_size);
if (!sub_module_inst) {
LOG_DEBUG("instantiate %s failed",
@ -1646,7 +1626,7 @@ wasm_set_running_mode(WASMModuleInstance *module_inst, RunningMode running_mode)
* Instantiate module
*/
WASMModuleInstance *
wasm_instantiate(WASMModule *module, bool is_sub_inst,
wasm_instantiate(WASMModule *module, WASMModuleInstance *parent,
WASMExecEnv *exec_env_main, uint32 stack_size,
uint32 heap_size, char *error_buf, uint32 error_buf_size)
{
@ -1663,6 +1643,7 @@ wasm_instantiate(WASMModule *module, bool is_sub_inst,
#if WASM_ENABLE_MULTI_MODULE != 0
bool ret = false;
#endif
const bool is_sub_inst = parent != NULL;
if (!module)
return NULL;
@ -1781,8 +1762,9 @@ wasm_instantiate(WASMModule *module, bool is_sub_inst,
/* Instantiate memories/tables/functions */
if ((module_inst->memory_count > 0
&& !(module_inst->memories = memories_instantiate(
module, module_inst, heap_size, error_buf, error_buf_size)))
&& !(module_inst->memories =
memories_instantiate(module, module_inst, parent, heap_size,
error_buf, error_buf_size)))
|| (module_inst->table_count > 0
&& !(module_inst->tables =
tables_instantiate(module, module_inst, first_table,

5
core/iwasm/interpreter/wasm_runtime.h
View File

@ -7,6 +7,7 @@
#define _WASM_RUNTIME_H
#include "wasm.h"
#include "bh_atomic.h"
#include "bh_hashmap.h"
#include "../common/wasm_runtime_common.h"
#include "../common/wasm_exec_env.h"
@ -79,7 +80,7 @@ struct WASMMemoryInstance {
/* Module type */
uint32 module_type;
/* Shared memory flag */
bool is_shared;
bh_atomic_32_t ref_count; /* 0: non-shared, > 0: reference count */
/* Number bytes per page */
uint32 num_bytes_per_page;
@ -400,7 +401,7 @@ void
wasm_unload(WASMModule *module);
WASMModuleInstance *
wasm_instantiate(WASMModule *module, bool is_sub_inst,
wasm_instantiate(WASMModule *module, WASMModuleInstance *parent,
WASMExecEnv *exec_env_main, uint32 stack_size,
uint32 heap_size, char *error_buf, uint32 error_buf_size);

2
core/iwasm/libraries/lib-pthread/lib_pthread_wrapper.c
View File

@ -581,7 +581,7 @@ pthread_create_wrapper(wasm_exec_env_t exec_env,
#endif
if (!(new_module_inst = wasm_runtime_instantiate_internal(
module, true, exec_env, stack_size, 0, NULL, 0)))
module, module_inst, exec_env, stack_size, 0, NULL, 0)))
return -1;
/* Set custom_data to new module instance */

2
core/iwasm/libraries/lib-wasi-threads/lib_wasi_threads_wrapper.c
View File

@ -90,7 +90,7 @@ thread_spawn_wrapper(wasm_exec_env_t exec_env, uint32 start_arg)
stack_size = ((WASMModuleInstance *)module_inst)->default_wasm_stack_size;
if (!(new_module_inst = wasm_runtime_instantiate_internal(
module, true, exec_env, stack_size, 0, NULL, 0)))
module, module_inst, exec_env, stack_size, 0, NULL, 0)))
return -1;
wasm_runtime_set_custom_data_internal(

22
core/iwasm/libraries/thread-mgr/thread_manager.c
View File

@ -509,7 +509,7 @@ wasm_cluster_spawn_exec_env(WASMExecEnv *exec_env)
#endif
if (!(new_module_inst = wasm_runtime_instantiate_internal(
module, true, exec_env, stack_size, 0, NULL, 0))) {
module, module_inst, exec_env, stack_size, 0, NULL, 0))) {
goto fail1;
}
@ -1254,10 +1254,8 @@ set_exception_visitor(void *node, void *user_data)
/* Only spread non "wasi proc exit" exception */
#if WASM_ENABLE_SHARED_MEMORY != 0
WASMSharedMemNode *shared_mem_node = wasm_module_get_shared_memory(
(WASMModuleCommon *)curr_wasm_inst->module);
if (shared_mem_node)
os_mutex_lock(&shared_mem_node->shared_mem_lock);
if (curr_wasm_inst->memory_count > 0)
shared_memory_lock(curr_wasm_inst->memories[0]);
#endif
if (!strstr(wasm_inst->cur_exception, "wasi proc exit")) {
bh_memcpy_s(curr_wasm_inst->cur_exception,
@ -1266,8 +1264,8 @@ set_exception_visitor(void *node, void *user_data)
sizeof(wasm_inst->cur_exception));
}
#if WASM_ENABLE_SHARED_MEMORY != 0
if (shared_mem_node)
os_mutex_unlock(&shared_mem_node->shared_mem_lock);
if (curr_wasm_inst->memory_count > 0)
shared_memory_unlock(curr_wasm_inst->memories[0]);
#endif
/* Terminate the thread so it can exit from dead loops */
@ -1286,15 +1284,13 @@ clear_exception_visitor(void *node, void *user_data)
(WASMModuleInstance *)get_module_inst(curr_exec_env);
#if WASM_ENABLE_SHARED_MEMORY != 0
WASMSharedMemNode *shared_mem_node = wasm_module_get_shared_memory(
(WASMModuleCommon *)curr_wasm_inst->module);
if (shared_mem_node)
os_mutex_lock(&shared_mem_node->shared_mem_lock);
if (curr_wasm_inst->memory_count > 0)
shared_memory_lock(curr_wasm_inst->memories[0]);
#endif
curr_wasm_inst->cur_exception[0] = '\0';
#if WASM_ENABLE_SHARED_MEMORY != 0
if (shared_mem_node)
os_mutex_unlock(&shared_mem_node->shared_mem_lock);
if (curr_wasm_inst->memory_count > 0)
shared_memory_unlock(curr_wasm_inst->memories[0]);
#endif
}
}