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Implement post-MVP features and native stack overflow check (#243)

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Implement native thread stack overflow check
Implement post-MVP: Non-trapping float-to-int conversions
Implement post-MVP: Sign-extension operators
Enhance WASM loader checks
This commit is contained in:
wenyongh
2020-04-30 17:52:11 +08:00
committed by GitHub
parent ab4f0c5419
commit d381b0fdec
36 changed files with 1246 additions and 232 deletions
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29
core/iwasm/aot/aot_runtime.c
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@ -39,7 +39,11 @@ global_instantiate(AOTModuleInstance *module_inst, AOTModule *module,
init_expr = &global->init_expr;
switch (init_expr->init_expr_type) {
case INIT_EXPR_TYPE_GET_GLOBAL:
bh_assert(init_expr->u.global_index < module->import_global_count);
if (init_expr->u.global_index >= module->import_global_count + i) {
set_error_buf(error_buf, error_buf_size,
"Instantiate global failed: unknown global.");
return false;
}
memcpy(p,
&module->import_globals[init_expr->u.global_index].global_data_linked,
global->size);
@ -501,6 +505,9 @@ aot_create_exec_env_and_call_function(AOTModuleInstance *module_inst,
return false;
}
/* set thread handle and stack boundary */
wasm_exec_env_set_thread_info(exec_env);
ret = aot_call_function(exec_env, func, argc, argv);
wasm_exec_env_destroy(exec_env);
return ret;
@ -556,6 +563,9 @@ aot_set_exception_with_id(AOTModuleInstance *module_inst,
case EXCE_CALL_UNLINKED_IMPORT_FUNC:
aot_set_exception(module_inst, "fail to call unlinked import function");
break;
case EXCE_NATIVE_STACK_OVERFLOW:
aot_set_exception(module_inst, "native stack overflow");
break;
default:
break;
}
@ -662,10 +672,12 @@ void *
aot_addr_app_to_native(AOTModuleInstance *module_inst, int32 app_offset)
{
int32 memory_data_size = (int32)module_inst->memory_data_size;
uint8 *addr = (uint8 *)module_inst->memory_data.ptr + app_offset;
if (module_inst->heap_base_offset < app_offset
&& app_offset < memory_data_size)
return (uint8*)module_inst->memory_data.ptr + app_offset;
if ((uint8*)module_inst->heap_data.ptr < addr
&& addr < (uint8*)module_inst->memory_data.ptr
+ memory_data_size)
return addr;
return NULL;
}
@ -929,6 +941,15 @@ aot_call_indirect(WASMExecEnv *exec_env,
}
}
/* this function is called from native code, so exec_env->handle and
exec_env->native_stack_boundary must have been set, we don't set
it again */
if ((uint8*)&module_inst < exec_env->native_stack_boundary) {
aot_set_exception_with_id(module_inst, EXCE_NATIVE_STACK_OVERFLOW);
return false;
}
return wasm_runtime_invoke_native(exec_env, func_ptr,
func_type, signature, attachment,
argv, argc, argv);