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aot_emit_function.c
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aot_emit_function.c
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/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include "aot_emit_function.h"
#include "aot_emit_exception.h"
#include "aot_emit_control.h"
#include "aot_emit_table.h"
#include "../aot/aot_runtime.h"
#define ADD_BASIC_BLOCK(block, name) \
do { \
if (!(block = LLVMAppendBasicBlockInContext(comp_ctx->context, \
func_ctx->func, name))) { \
aot_set_last_error("llvm add basic block failed."); \
goto fail; \
} \
} while (0)
static bool
create_func_return_block(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx)
{
LLVMBasicBlockRef block_curr = LLVMGetInsertBlock(comp_ctx->builder);
AOTFuncType *aot_func_type = func_ctx->aot_func->func_type;
/* Create function return block if it isn't created */
if (!func_ctx->func_return_block) {
if (!(func_ctx->func_return_block = LLVMAppendBasicBlockInContext(
comp_ctx->context, func_ctx->func, "func_ret"))) {
aot_set_last_error("llvm add basic block failed.");
return false;
}
/* Create return IR */
LLVMPositionBuilderAtEnd(comp_ctx->builder,
func_ctx->func_return_block);
if (!comp_ctx->enable_bound_check) {
if (!aot_emit_exception(comp_ctx, func_ctx, EXCE_ALREADY_THROWN,
false, NULL, NULL)) {
return false;
}
}
else if (!aot_build_zero_function_ret(comp_ctx, func_ctx,
aot_func_type)) {
return false;
}
}
LLVMPositionBuilderAtEnd(comp_ctx->builder, block_curr);
return true;
}
/* Check whether there was exception thrown, if yes, return directly */
static bool
check_exception_thrown(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx)
{
LLVMBasicBlockRef block_curr, check_exce_succ;
LLVMValueRef value, cmp;
/* Create function return block if it isn't created */
if (!create_func_return_block(comp_ctx, func_ctx))
return false;
/* Load the first byte of aot_module_inst->cur_exception, and check
whether it is '\0'. If yes, no exception was thrown. */
if (!(value = LLVMBuildLoad2(comp_ctx->builder, INT8_TYPE,
func_ctx->cur_exception, "exce_value"))
|| !(cmp = LLVMBuildICmp(comp_ctx->builder, LLVMIntEQ, value, I8_ZERO,
"cmp"))) {
aot_set_last_error("llvm build icmp failed.");
return false;
}
/* Add check exection success block */
if (!(check_exce_succ = LLVMAppendBasicBlockInContext(
comp_ctx->context, func_ctx->func, "check_exce_succ"))) {
aot_set_last_error("llvm add basic block failed.");
return false;
}
block_curr = LLVMGetInsertBlock(comp_ctx->builder);
LLVMMoveBasicBlockAfter(check_exce_succ, block_curr);
LLVMPositionBuilderAtEnd(comp_ctx->builder, block_curr);
/* Create condition br */
if (!LLVMBuildCondBr(comp_ctx->builder, cmp, check_exce_succ,
func_ctx->func_return_block)) {
aot_set_last_error("llvm build cond br failed.");
return false;
}
LLVMPositionBuilderAtEnd(comp_ctx->builder, check_exce_succ);
return true;
}
/* Check whether there was exception thrown, if yes, return directly */
static bool
check_call_return(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
LLVMValueRef res)
{
LLVMBasicBlockRef block_curr, check_call_succ;
LLVMValueRef cmp;
/* Create function return block if it isn't created */
if (!create_func_return_block(comp_ctx, func_ctx))
return false;
if (!(cmp = LLVMBuildICmp(comp_ctx->builder, LLVMIntNE, res, I8_ZERO,
"cmp"))) {
aot_set_last_error("llvm build icmp failed.");
return false;
}
/* Add check exection success block */
if (!(check_call_succ = LLVMAppendBasicBlockInContext(
comp_ctx->context, func_ctx->func, "check_call_succ"))) {
aot_set_last_error("llvm add basic block failed.");
return false;
}
block_curr = LLVMGetInsertBlock(comp_ctx->builder);
LLVMMoveBasicBlockAfter(check_call_succ, block_curr);
LLVMPositionBuilderAtEnd(comp_ctx->builder, block_curr);
/* Create condition br */
if (!LLVMBuildCondBr(comp_ctx->builder, cmp, check_call_succ,
func_ctx->func_return_block)) {
aot_set_last_error("llvm build cond br failed.");
return false;
}
LLVMPositionBuilderAtEnd(comp_ctx->builder, check_call_succ);
return true;
}
static bool
call_aot_invoke_native_func(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
LLVMValueRef func_idx, AOTFuncType *aot_func_type,
LLVMTypeRef *param_types,
LLVMValueRef *param_values, uint32 param_count,
uint32 param_cell_num, LLVMTypeRef ret_type,
uint8 wasm_ret_type, LLVMValueRef *p_value_ret,
LLVMValueRef *p_res)
{
LLVMTypeRef func_type, func_ptr_type, func_param_types[4];
LLVMTypeRef ret_ptr_type, elem_ptr_type;
LLVMValueRef func, elem_idx, elem_ptr;
LLVMValueRef func_param_values[4], value_ret = NULL, res;
char buf[32], *func_name = "aot_invoke_native";
uint32 i, cell_num = 0;
/* prepare function type of aot_invoke_native */
func_param_types[0] = comp_ctx->exec_env_type; /* exec_env */
func_param_types[1] = I32_TYPE; /* func_idx */
func_param_types[2] = I32_TYPE; /* argc */
func_param_types[3] = INT32_PTR_TYPE; /* argv */
if (!(func_type =
LLVMFunctionType(INT8_TYPE, func_param_types, 4, false))) {
aot_set_last_error("llvm add function type failed.");
return false;
}
/* prepare function pointer */
if (comp_ctx->is_jit_mode) {
if (!(func_ptr_type = LLVMPointerType(func_type, 0))) {
aot_set_last_error("create LLVM function type failed.");
return false;
}
/* JIT mode, call the function directly */
if (!(func = I64_CONST((uint64)(uintptr_t)llvm_jit_invoke_native))
|| !(func = LLVMConstIntToPtr(func, func_ptr_type))) {
aot_set_last_error("create LLVM value failed.");
return false;
}
}
else if (comp_ctx->is_indirect_mode) {
int32 func_index;
if (!(func_ptr_type = LLVMPointerType(func_type, 0))) {
aot_set_last_error("create LLVM function type failed.");
return false;
}
func_index = aot_get_native_symbol_index(comp_ctx, func_name);
if (func_index < 0) {
return false;
}
if (!(func = aot_get_func_from_table(comp_ctx, func_ctx->native_symbol,
func_ptr_type, func_index))) {
return false;
}
}
else {
if (!(func = LLVMGetNamedFunction(func_ctx->module, func_name))
&& !(func =
LLVMAddFunction(func_ctx->module, func_name, func_type))) {
aot_set_last_error("add LLVM function failed.");
return false;
}
}
if (param_cell_num > 64) {
aot_set_last_error("prepare native arguments failed: "
"maximum 64 parameter cell number supported.");
return false;
}
/* prepare frame_lp */
for (i = 0; i < param_count; i++) {
if (!(elem_idx = I32_CONST(cell_num))
|| !(elem_ptr_type = LLVMPointerType(param_types[i], 0))) {
aot_set_last_error("llvm add const or pointer type failed.");
return false;
}
snprintf(buf, sizeof(buf), "%s%d", "elem", i);
if (!(elem_ptr =
LLVMBuildInBoundsGEP2(comp_ctx->builder, I32_TYPE,
func_ctx->argv_buf, &elem_idx, 1, buf))
|| !(elem_ptr = LLVMBuildBitCast(comp_ctx->builder, elem_ptr,
elem_ptr_type, buf))) {
aot_set_last_error("llvm build bit cast failed.");
return false;
}
if (!(res = LLVMBuildStore(comp_ctx->builder, param_values[i],
elem_ptr))) {
aot_set_last_error("llvm build store failed.");
return false;
}
LLVMSetAlignment(res, 1);
cell_num += wasm_value_type_cell_num(aot_func_type->types[i]);
}
func_param_values[0] = func_ctx->exec_env;
func_param_values[1] = func_idx;
func_param_values[2] = I32_CONST(param_cell_num);
func_param_values[3] = func_ctx->argv_buf;
if (!func_param_values[2]) {
aot_set_last_error("llvm create const failed.");
return false;
}
/* call aot_invoke_native() function */
if (!(res = LLVMBuildCall2(comp_ctx->builder, func_type, func,
func_param_values, 4, "res"))) {
aot_set_last_error("llvm build call failed.");
return false;
}
/* get function return value */
if (wasm_ret_type != VALUE_TYPE_VOID) {
if (!(ret_ptr_type = LLVMPointerType(ret_type, 0))) {
aot_set_last_error("llvm add pointer type failed.");
return false;
}
if (!(value_ret =
LLVMBuildBitCast(comp_ctx->builder, func_ctx->argv_buf,
ret_ptr_type, "argv_ret"))) {
aot_set_last_error("llvm build bit cast failed.");
return false;
}
if (!(*p_value_ret = LLVMBuildLoad2(comp_ctx->builder, ret_type,
value_ret, "value_ret"))) {
aot_set_last_error("llvm build load failed.");
return false;
}
}
*p_res = res;
return true;
}
#if (WASM_ENABLE_DUMP_CALL_STACK != 0) || (WASM_ENABLE_PERF_PROFILING != 0)
static bool
call_aot_alloc_frame_func(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
LLVMValueRef func_idx)
{
LLVMValueRef param_values[2], ret_value, value, func;
LLVMTypeRef param_types[2], ret_type, func_type, func_ptr_type;
LLVMBasicBlockRef block_curr = LLVMGetInsertBlock(comp_ctx->builder);
LLVMBasicBlockRef frame_alloc_fail, frame_alloc_success;
AOTFuncType *aot_func_type = func_ctx->aot_func->func_type;
param_types[0] = comp_ctx->exec_env_type;
param_types[1] = I32_TYPE;
ret_type = INT8_TYPE;
if (comp_ctx->is_jit_mode)
GET_AOT_FUNCTION(llvm_jit_alloc_frame, 2);
else
GET_AOT_FUNCTION(aot_alloc_frame, 2);
param_values[0] = func_ctx->exec_env;
param_values[1] = func_idx;
if (!(ret_value =
LLVMBuildCall2(comp_ctx->builder, func_type, func, param_values,
2, "call_aot_alloc_frame"))) {
aot_set_last_error("llvm build call failed.");
return false;
}
if (!(ret_value = LLVMBuildICmp(comp_ctx->builder, LLVMIntUGT, ret_value,
I8_ZERO, "frame_alloc_ret"))) {
aot_set_last_error("llvm build icmp failed.");
return false;
}
ADD_BASIC_BLOCK(frame_alloc_fail, "frame_alloc_fail");
ADD_BASIC_BLOCK(frame_alloc_success, "frame_alloc_success");
LLVMMoveBasicBlockAfter(frame_alloc_fail, block_curr);
LLVMMoveBasicBlockAfter(frame_alloc_success, block_curr);
if (!LLVMBuildCondBr(comp_ctx->builder, ret_value, frame_alloc_success,
frame_alloc_fail)) {
aot_set_last_error("llvm build cond br failed.");
return false;
}
/* If frame alloc failed, return this function
so the runtime can catch the exception */
LLVMPositionBuilderAtEnd(comp_ctx->builder, frame_alloc_fail);
if (!aot_build_zero_function_ret(comp_ctx, func_ctx, aot_func_type)) {
return false;
}
LLVMPositionBuilderAtEnd(comp_ctx->builder, frame_alloc_success);
return true;
fail:
return false;
}
static bool
call_aot_free_frame_func(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx)
{
LLVMValueRef param_values[1], ret_value, value, func;
LLVMTypeRef param_types[1], ret_type, func_type, func_ptr_type;
param_types[0] = comp_ctx->exec_env_type;
ret_type = INT8_TYPE;
if (comp_ctx->is_jit_mode)
GET_AOT_FUNCTION(llvm_jit_free_frame, 1);
else
GET_AOT_FUNCTION(aot_free_frame, 1);
param_values[0] = func_ctx->exec_env;
if (!(ret_value = LLVMBuildCall2(comp_ctx->builder, func_type, func,
param_values, 1, "call_aot_free_frame"))) {
aot_set_last_error("llvm build call failed.");
return false;
}
return true;
fail:
return false;
}
#endif /* end of (WASM_ENABLE_DUMP_CALL_STACK != 0) \
|| (WASM_ENABLE_PERF_PROFILING != 0) */
static bool
record_stack_usage(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
uint32 callee_cell_num)
{
LLVMBasicBlockRef block_curr = LLVMGetInsertBlock(comp_ctx->builder);
LLVMBasicBlockRef block_update;
LLVMBasicBlockRef block_after_update;
LLVMValueRef callee_local_size, new_sp, cmp;
LLVMValueRef native_stack_top_min;
LLVMTypeRef ptrdiff_type;
if (comp_ctx->pointer_size == sizeof(uint64_t)) {
ptrdiff_type = I64_TYPE;
}
else {
ptrdiff_type = I32_TYPE;
}
/*
* new_sp = last_alloca - callee_local_size;
* if (*native_stack_top_min_addr > new_sp) {
* *native_stack_top_min_addr = new_sp;
* }
*/
if (!(callee_local_size = LLVMConstInt(
ptrdiff_type, -(int64_t)callee_cell_num * 4, true))) {
aot_set_last_error("llvm build const failed.");
return false;
}
if (!(new_sp = LLVMBuildInBoundsGEP2(comp_ctx->builder, INT8_TYPE,
func_ctx->last_alloca,
&callee_local_size, 1, "new_sp"))) {
aot_set_last_error("llvm build gep failed");
return false;
}
if (!(native_stack_top_min = LLVMBuildLoad2(
comp_ctx->builder, OPQ_PTR_TYPE,
func_ctx->native_stack_top_min_addr, "native_stack_top_min"))) {
aot_set_last_error("llvm build load failed");
return false;
}
if (!(cmp = LLVMBuildICmp(comp_ctx->builder, LLVMIntULT, new_sp,
native_stack_top_min, "cmp"))) {
aot_set_last_error("llvm build icmp failed.");
return false;
}
if (!(block_update = LLVMAppendBasicBlockInContext(
comp_ctx->context, func_ctx->func, "block_update"))) {
aot_set_last_error("llvm add basic block failed.");
return false;
}
if (!(block_after_update = LLVMAppendBasicBlockInContext(
comp_ctx->context, func_ctx->func, "block_after_update"))) {
aot_set_last_error("llvm add basic block failed.");
return false;
}
LLVMMoveBasicBlockAfter(block_update, block_curr);
LLVMMoveBasicBlockAfter(block_after_update, block_update);
if (!LLVMBuildCondBr(comp_ctx->builder, cmp, block_update,
block_after_update)) {
aot_set_last_error("llvm build cond br failed.");
return false;
}
LLVMPositionBuilderAtEnd(comp_ctx->builder, block_update);
if (!LLVMBuildStore(comp_ctx->builder, new_sp,
func_ctx->native_stack_top_min_addr)) {
aot_set_last_error("llvm build store failed");
return false;
}
if (!LLVMBuildBr(comp_ctx->builder, block_after_update)) {
aot_set_last_error("llvm build br failed.");
return false;
}
LLVMPositionBuilderAtEnd(comp_ctx->builder, block_after_update);
return true;
}
static bool
check_stack_boundary(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
uint32 callee_cell_num)
{
LLVMBasicBlockRef block_curr = LLVMGetInsertBlock(comp_ctx->builder);
LLVMBasicBlockRef check_stack;
LLVMValueRef callee_local_size, stack_bound, cmp;
if (!(callee_local_size = I32_CONST(callee_cell_num * 4))) {
aot_set_last_error("llvm build const failed.");
return false;
}
if (!(stack_bound = LLVMBuildInBoundsGEP2(
comp_ctx->builder, INT8_TYPE, func_ctx->native_stack_bound,
&callee_local_size, 1, "stack_bound"))) {
aot_set_last_error("llvm build inbound gep failed.");
return false;
}
if (!(check_stack = LLVMAppendBasicBlockInContext(
comp_ctx->context, func_ctx->func, "check_stack"))) {
aot_set_last_error("llvm add basic block failed.");
return false;
}
LLVMMoveBasicBlockAfter(check_stack, block_curr);
if (!(cmp = LLVMBuildICmp(comp_ctx->builder, LLVMIntULT,
func_ctx->last_alloca, stack_bound, "cmp"))) {
aot_set_last_error("llvm build icmp failed.");
return false;
}
if (!aot_emit_exception(comp_ctx, func_ctx, EXCE_NATIVE_STACK_OVERFLOW,
true, cmp, check_stack)) {
return false;
}
LLVMPositionBuilderAtEnd(comp_ctx->builder, check_stack);
return true;
}
static bool
check_stack(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
uint32 callee_cell_num)
{
if (comp_ctx->enable_stack_estimation
&& !record_stack_usage(comp_ctx, func_ctx, callee_cell_num))
return false;
if (comp_ctx->enable_stack_bound_check
&& !check_stack_boundary(comp_ctx, func_ctx, callee_cell_num))
return false;
return true;
}
/**
* Check whether the app address and its buffer are inside the linear memory,
* if no, throw exception
*/
static bool
check_app_addr_and_convert(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
bool is_str_arg, LLVMValueRef app_addr,
LLVMValueRef buf_size,
LLVMValueRef *p_native_addr_converted)
{
LLVMTypeRef func_type, func_ptr_type, func_param_types[5];
LLVMValueRef func, func_param_values[5], res, native_addr_ptr;
char *func_name = "aot_check_app_addr_and_convert";
/* prepare function type of aot_check_app_addr_and_convert */
func_param_types[0] = comp_ctx->aot_inst_type; /* module_inst */
func_param_types[1] = INT8_TYPE; /* is_str_arg */
func_param_types[2] = I32_TYPE; /* app_offset */
func_param_types[3] = I32_TYPE; /* buf_size */
func_param_types[4] =
comp_ctx->basic_types.int8_pptr_type; /* p_native_addr */
if (!(func_type =
LLVMFunctionType(INT8_TYPE, func_param_types, 5, false))) {
aot_set_last_error("llvm add function type failed.");
return false;
}
/* prepare function pointer */
if (comp_ctx->is_jit_mode) {
if (!(func_ptr_type = LLVMPointerType(func_type, 0))) {
aot_set_last_error("create LLVM function type failed.");
return false;
}
/* JIT mode, call the function directly */
if (!(func =
I64_CONST((uint64)(uintptr_t)jit_check_app_addr_and_convert))
|| !(func = LLVMConstIntToPtr(func, func_ptr_type))) {
aot_set_last_error("create LLVM value failed.");
return false;
}
}
else if (comp_ctx->is_indirect_mode) {
int32 func_index;
if (!(func_ptr_type = LLVMPointerType(func_type, 0))) {
aot_set_last_error("create LLVM function type failed.");
return false;
}
func_index = aot_get_native_symbol_index(comp_ctx, func_name);
if (func_index < 0) {
return false;
}
if (!(func = aot_get_func_from_table(comp_ctx, func_ctx->native_symbol,
func_ptr_type, func_index))) {
return false;
}
}
else {
if (!(func = LLVMGetNamedFunction(func_ctx->module, func_name))
&& !(func =
LLVMAddFunction(func_ctx->module, func_name, func_type))) {
aot_set_last_error("add LLVM function failed.");
return false;
}
}
if (!(native_addr_ptr = LLVMBuildBitCast(
comp_ctx->builder, func_ctx->argv_buf,
comp_ctx->basic_types.int8_pptr_type, "p_native_addr"))) {
aot_set_last_error("llvm build bit cast failed.");
return false;
}
func_param_values[0] = func_ctx->aot_inst;
func_param_values[1] = I8_CONST(is_str_arg);
func_param_values[2] = app_addr;
func_param_values[3] = buf_size;
func_param_values[4] = native_addr_ptr;
if (!func_param_values[1]) {
aot_set_last_error("llvm create const failed.");
return false;
}
/* call aot_check_app_addr_and_convert() function */
if (!(res = LLVMBuildCall2(comp_ctx->builder, func_type, func,
func_param_values, 5, "res"))) {
aot_set_last_error("llvm build call failed.");
return false;
}
/* Check whether exception was thrown when executing the function */
if (comp_ctx->enable_bound_check
&& !check_call_return(comp_ctx, func_ctx, res)) {
return false;
}
if (!(*p_native_addr_converted =
LLVMBuildLoad2(comp_ctx->builder, OPQ_PTR_TYPE, native_addr_ptr,
"native_addr"))) {
aot_set_last_error("llvm build load failed.");
return false;
}
return true;
}
bool
aot_compile_op_call(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
uint32 func_idx, bool tail_call)
{
uint32 import_func_count = comp_ctx->comp_data->import_func_count;
AOTImportFunc *import_funcs = comp_ctx->comp_data->import_funcs;
uint32 func_count = comp_ctx->func_ctx_count, param_cell_num = 0;
uint32 ext_ret_cell_num = 0, cell_num = 0;
AOTFuncContext **func_ctxes = comp_ctx->func_ctxes;
AOTFuncType *func_type;
AOTFunc *aot_func;
LLVMTypeRef *param_types = NULL, ret_type;
LLVMTypeRef ext_ret_ptr_type;
LLVMValueRef *param_values = NULL, value_ret = NULL, func;
LLVMValueRef import_func_idx, res;
LLVMValueRef ext_ret, ext_ret_ptr, ext_ret_idx;
int32 i, j = 0, param_count, result_count, ext_ret_count;
uint64 total_size;
uint32 callee_cell_num;
uint8 wasm_ret_type;
uint8 *ext_ret_types = NULL;
const char *signature = NULL;
bool ret = false;
char buf[32];
#if WASM_ENABLE_THREAD_MGR != 0
/* Insert suspend check point */
if (comp_ctx->enable_thread_mgr) {
if (!check_suspend_flags(comp_ctx, func_ctx))
return false;
}
#endif
/* Check function index */
if (func_idx >= import_func_count + func_count) {
aot_set_last_error("Function index out of range.");
return false;
}
/* Get function type */
if (func_idx < import_func_count) {
func_type = import_funcs[func_idx].func_type;
signature = import_funcs[func_idx].signature;
}
else {
func_type =
func_ctxes[func_idx - import_func_count]->aot_func->func_type;
}
/* Get param cell number */
param_cell_num = func_type->param_cell_num;
#if (WASM_ENABLE_DUMP_CALL_STACK != 0) || (WASM_ENABLE_PERF_PROFILING != 0)
if (comp_ctx->enable_aux_stack_frame) {
LLVMValueRef func_idx_const;
if (!(func_idx_const = I32_CONST(func_idx))) {
aot_set_last_error("llvm build const failed.");
return false;
}
if (!call_aot_alloc_frame_func(comp_ctx, func_ctx, func_idx_const))
return false;
}
#endif
/* Allocate memory for parameters.
* Parameters layout:
* - exec env
* - wasm function's parameters
* - extra results'(except the first one) addresses
*/
param_count = (int32)func_type->param_count;
result_count = (int32)func_type->result_count;
ext_ret_count = result_count > 1 ? result_count - 1 : 0;
total_size =
sizeof(LLVMValueRef) * (uint64)(param_count + 1 + ext_ret_count);
if (total_size >= UINT32_MAX
|| !(param_values = wasm_runtime_malloc((uint32)total_size))) {
aot_set_last_error("allocate memory failed.");
return false;
}
/* First parameter is exec env */
param_values[j++] = func_ctx->exec_env;
/* Pop parameters from stack */
for (i = param_count - 1; i >= 0; i--)
POP(param_values[i + j], func_type->types[i]);
/* Set parameters for multiple return values, the first return value
is returned by function return value, and the other return values
are returned by function parameters with pointer types */
if (ext_ret_count > 0) {
ext_ret_types = func_type->types + param_count + 1;
ext_ret_cell_num = wasm_get_cell_num(ext_ret_types, ext_ret_count);
if (ext_ret_cell_num > 64) {
aot_set_last_error("prepare extra results's return "
"address arguments failed: "
"maximum 64 parameter cell number supported.");
goto fail;
}
for (i = 0; i < ext_ret_count; i++) {
if (!(ext_ret_idx = I32_CONST(cell_num))
|| !(ext_ret_ptr_type =
LLVMPointerType(TO_LLVM_TYPE(ext_ret_types[i]), 0))) {
aot_set_last_error("llvm add const or pointer type failed.");
goto fail;
}
snprintf(buf, sizeof(buf), "ext_ret%d_ptr", i);
if (!(ext_ret_ptr = LLVMBuildInBoundsGEP2(
comp_ctx->builder, I32_TYPE, func_ctx->argv_buf,
&ext_ret_idx, 1, buf))) {
aot_set_last_error("llvm build GEP failed.");
goto fail;
}
snprintf(buf, sizeof(buf), "ext_ret%d_ptr_cast", i);
if (!(ext_ret_ptr = LLVMBuildBitCast(comp_ctx->builder, ext_ret_ptr,
ext_ret_ptr_type, buf))) {
aot_set_last_error("llvm build bit cast failed.");
goto fail;
}
param_values[param_count + 1 + i] = ext_ret_ptr;
cell_num += wasm_value_type_cell_num(ext_ret_types[i]);
}
}
if (func_idx < import_func_count) {
if (!(import_func_idx = I32_CONST(func_idx))) {
aot_set_last_error("llvm build inbounds gep failed.");
goto fail;
}
/* Initialize parameter types of the LLVM function */
total_size = sizeof(LLVMTypeRef) * (uint64)(param_count + 1);
if (total_size >= UINT32_MAX
|| !(param_types = wasm_runtime_malloc((uint32)total_size))) {
aot_set_last_error("allocate memory failed.");
goto fail;
}
j = 0;
param_types[j++] = comp_ctx->exec_env_type;
for (i = 0; i < param_count; i++, j++) {
param_types[j] = TO_LLVM_TYPE(func_type->types[i]);
/* If the signature can be gotten, e.g. the signature of the builtin
native libraries, just check the app offset and buf size, and
then convert app offset to native addr and call the native func
directly, no need to call aot_invoke_native to call it */
if (signature) {
LLVMValueRef native_addr, native_addr_size;
if (signature[i + 1] == '*' || signature[i + 1] == '$') {
param_types[j] = INT8_PTR_TYPE;
}
if (signature[i + 1] == '*') {
if (signature[i + 2] == '~')
native_addr_size = param_values[i + 2];
else
native_addr_size = I32_ONE;
if (!check_app_addr_and_convert(
comp_ctx, func_ctx, false, param_values[j],
native_addr_size, &native_addr)) {
goto fail;
}
param_values[j] = native_addr;
}
else if (signature[i + 1] == '$') {
native_addr_size = I32_ZERO;
if (!check_app_addr_and_convert(
comp_ctx, func_ctx, true, param_values[j],
native_addr_size, &native_addr)) {
goto fail;
}
param_values[j] = native_addr;
}
}
}
if (func_type->result_count) {
wasm_ret_type = func_type->types[func_type->param_count];
ret_type = TO_LLVM_TYPE(wasm_ret_type);
}
else {
wasm_ret_type = VALUE_TYPE_VOID;
ret_type = VOID_TYPE;
}
if (!signature) {
/* call aot_invoke_native() */
if (!call_aot_invoke_native_func(
comp_ctx, func_ctx, import_func_idx, func_type,
param_types + 1, param_values + 1, param_count,
param_cell_num, ret_type, wasm_ret_type, &value_ret, &res))
goto fail;
/* Check whether there was exception thrown when executing
the function */
if (comp_ctx->enable_bound_check
&& !check_call_return(comp_ctx, func_ctx, res))
goto fail;
}
else { /* call native func directly */
LLVMTypeRef native_func_type, func_ptr_type;
LLVMValueRef func_ptr;
if (!(native_func_type = LLVMFunctionType(
ret_type, param_types, param_count + 1, false))) {
aot_set_last_error("llvm add function type failed.");
goto fail;
}
if (!(func_ptr_type = LLVMPointerType(native_func_type, 0))) {
aot_set_last_error("create LLVM function type failed.");
goto fail;
}
/* Load function pointer */
if (!(func_ptr = LLVMBuildInBoundsGEP2(
comp_ctx->builder, OPQ_PTR_TYPE, func_ctx->func_ptrs,
&import_func_idx, 1, "native_func_ptr_tmp"))) {
aot_set_last_error("llvm build inbounds gep failed.");
goto fail;
}
if (!(func_ptr = LLVMBuildLoad2(comp_ctx->builder, OPQ_PTR_TYPE,
func_ptr, "native_func_ptr"))) {
aot_set_last_error("llvm build load failed.");
goto fail;
}
if (!(func = LLVMBuildBitCast(comp_ctx->builder, func_ptr,
func_ptr_type, "native_func"))) {
aot_set_last_error("llvm bit cast failed.");
goto fail;
}
/* Call the function */
if (!(value_ret = LLVMBuildCall2(
comp_ctx->builder, native_func_type, func, param_values,
(uint32)param_count + 1 + ext_ret_count,
(func_type->result_count > 0 ? "call" : "")))) {
aot_set_last_error("LLVM build call failed.");
goto fail;
}
/* Check whether there was exception thrown when executing
the function */
if (!check_exception_thrown(comp_ctx, func_ctx)) {
goto fail;
}
}
}
else {
#if LLVM_VERSION_MAJOR >= 14
LLVMTypeRef llvm_func_type;
#endif
bool recursive_call =
(func_ctx == func_ctxes[func_idx - import_func_count]) ? true
: false;
if (comp_ctx->is_indirect_mode) {
LLVMTypeRef func_ptr_type;
if (!(func_ptr_type = LLVMPointerType(
func_ctxes[func_idx - import_func_count]->func_type,
0))) {
aot_set_last_error("construct func ptr type failed.");
goto fail;
}
if (!(func = aot_get_func_from_table(comp_ctx, func_ctx->func_ptrs,
func_ptr_type, func_idx))) {
goto fail;
}
}
else {
if (func_ctxes[func_idx - import_func_count] == func_ctx) {
/* recursive call */
func = func_ctx->func;
}
else {
if (!comp_ctx->is_jit_mode) {
func = func_ctxes[func_idx - import_func_count]->func;
}
else {
#if !(WASM_ENABLE_FAST_JIT != 0 && WASM_ENABLE_LAZY_JIT != 0)
func = func_ctxes[func_idx - import_func_count]->func;
#else
/* JIT tier-up, load func ptr from func_ptrs[func_idx] */
LLVMValueRef func_ptr, func_idx_const;
LLVMTypeRef func_ptr_type;
if (!(func_idx_const = I32_CONST(func_idx))) {
aot_set_last_error("llvm build const failed.");
goto fail;
}
if (!(func_ptr = LLVMBuildInBoundsGEP2(
comp_ctx->builder, OPQ_PTR_TYPE,
func_ctx->func_ptrs, &func_idx_const, 1,
"func_ptr_tmp"))) {
aot_set_last_error("llvm build inbounds gep failed.");
goto fail;
}
if (!(func_ptr =
LLVMBuildLoad2(comp_ctx->builder, OPQ_PTR_TYPE,
func_ptr, "func_ptr"))) {
aot_set_last_error("llvm build load failed.");
goto fail;
}
if (!(func_ptr_type = LLVMPointerType(
func_ctxes[func_idx - import_func_count]
->func_type,
0))) {
aot_set_last_error("construct func ptr type failed.");
goto fail;
}
if (!(func = LLVMBuildBitCast(comp_ctx->builder, func_ptr,
func_ptr_type,
"indirect_func"))) {
aot_set_last_error("llvm build bit cast failed.");
goto fail;
}
#endif /* end of !(WASM_ENABLE_FAST_JIT != 0 && WASM_ENABLE_LAZY_JIT != 0) */
}
}
}
aot_func = func_ctxes[func_idx - import_func_count]->aot_func;
callee_cell_num =
aot_func->param_cell_num + aot_func->local_cell_num + 1;
if (!check_stack(comp_ctx, func_ctx, callee_cell_num))
goto fail;
#if LLVM_VERSION_MAJOR >= 14
llvm_func_type = func_ctxes[func_idx - import_func_count]->func_type;
#endif
/* Call the function */
if (!(value_ret = LLVMBuildCall2(
comp_ctx->builder, llvm_func_type, func, param_values,
(uint32)param_count + 1 + ext_ret_count,
(func_type->result_count > 0 ? "call" : "")))) {
aot_set_last_error("LLVM build call failed.");
goto fail;
}
/* Set calling convention for the call with the func's calling
convention */
LLVMSetInstructionCallConv(value_ret, LLVMGetFunctionCallConv(func));
if (tail_call)
LLVMSetTailCall(value_ret, true);
/* Check whether there was exception thrown when executing
the function */
if (!tail_call && !recursive_call && comp_ctx->enable_bound_check
&& !check_exception_thrown(comp_ctx, func_ctx))
goto fail;
}
if (func_type->result_count > 0) {
/* Push the first result to stack */
PUSH(value_ret, func_type->types[func_type->param_count]);
/* Load extra result from its address and push to stack */
for (i = 0; i < ext_ret_count; i++) {
snprintf(buf, sizeof(buf), "func%d_ext_ret%d", func_idx, i);
if (!(ext_ret = LLVMBuildLoad2(
comp_ctx->builder, TO_LLVM_TYPE(ext_ret_types[i]),
param_values[1 + param_count + i], buf))) {
aot_set_last_error("llvm build load failed.");
goto fail;
}
PUSH(ext_ret, ext_ret_types[i]);
}
}
#if (WASM_ENABLE_DUMP_CALL_STACK != 0) || (WASM_ENABLE_PERF_PROFILING != 0)
if (comp_ctx->enable_aux_stack_frame) {
if (!call_aot_free_frame_func(comp_ctx, func_ctx))
goto fail;
}
#endif