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Fix data/elem drop (#2747)

Browse Source 
Currently, `data.drop` instruction is implemented by directly modifying the
underlying module. It breaks use cases where you have multiple instances
sharing a single loaded module. `elem.drop` has the same problem too.

This PR  fixes the issue by keeping track of which data/elem segments have
been dropped by using bitmaps for each module instances separately, and
add a sample to demonstrate the issue and make the CI run it.

Also add a missing check of dropped elements to the fast-jit `table.init`.

Fixes: https://github.com/bytecodealliance/wasm-micro-runtime/issues/2735
Fixes: https://github.com/bytecodealliance/wasm-micro-runtime/issues/2772
This commit is contained in:
YAMAMOTO Takashi 2023-11-18 09:50:16 +09:00 committed by GitHub
parent 08c0ec74c4
commit 562a5dd1b6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
26 changed files with 745 additions and 72 deletions
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6
.github/workflows/compilation_on_android_ubuntu.yml vendored
View File

@ -444,6 +444,12 @@ jobs:
cmake --build . --config Release --parallel 4
./iwasm wasm-apps/no_pthread.wasm
- name: Build Sample [shared-module]
run: |
cd samples/shared-module
./build.sh
./run.sh
test:
needs:
[

6
.github/workflows/compilation_on_macos.yml vendored
View File

@ -327,3 +327,9 @@ jobs:
cmake ..
cmake --build . --config Release --parallel 4
./iwasm wasm-apps/no_pthread.wasm
- name: Build Sample [shared-module]
run: |
cd samples/shared-module
./build.sh
./run.sh

6
.github/workflows/nightly_run.yml vendored
View File

@ -501,6 +501,12 @@ jobs:
cmake ..
cmake --build . --config Release --parallel 4
./iwasm wasm-apps/no_pthread.wasm
- name: Build Sample [shared-module]
run: |
cd samples/shared-module
./build.sh
./run.sh
test:
needs:
[

1
core/iwasm/aot/aot_loader.c
View File

@ -1095,7 +1095,6 @@ load_table_init_data_list(const uint8 **p_buf, const uint8 *buf_end,
data_list[i]->mode = mode;
data_list[i]->elem_type = elem_type;
data_list[i]->is_dropped = false;
data_list[i]->table_index = table_index;
data_list[i]->offset.init_expr_type = (uint8)init_expr_type;
data_list[i]->offset.u.i64 = (int64)init_expr_value;

68
core/iwasm/aot/aot_runtime.c
View File

@ -1098,6 +1098,9 @@ aot_instantiate(AOTModule *module, AOTModuleInstance *parent,
char *error_buf, uint32 error_buf_size)
{
AOTModuleInstance *module_inst;
#if WASM_ENABLE_BULK_MEMORY != 0 || WASM_ENABLE_REF_TYPES != 0
WASMModuleInstanceExtraCommon *common;
#endif
const uint32 module_inst_struct_size =
offsetof(AOTModuleInstance, global_table_data.bytes);
const uint64 module_inst_mem_inst_size =
@ -1164,6 +1167,32 @@ aot_instantiate(AOTModule *module, AOTModuleInstance *parent,
}
#endif
#if WASM_ENABLE_BULK_MEMORY != 0 || WASM_ENABLE_REF_TYPES != 0
common = &((AOTModuleInstanceExtra *)module_inst->e)->common;
#endif
#if WASM_ENABLE_BULK_MEMORY != 0
if (module->mem_init_data_count > 0) {
common->data_dropped = bh_bitmap_new(0, module->mem_init_data_count);
if (common->data_dropped == NULL) {
LOG_DEBUG("failed to allocate bitmaps");
set_error_buf(error_buf, error_buf_size,
"failed to allocate bitmaps");
goto fail;
}
}
#endif
#if WASM_ENABLE_REF_TYPES != 0
if (module->table_init_data_count > 0) {
common->elem_dropped = bh_bitmap_new(0, module->table_init_data_count);
if (common->elem_dropped == NULL) {
LOG_DEBUG("failed to allocate bitmaps");
set_error_buf(error_buf, error_buf_size,
"failed to allocate bitmaps");
goto fail;
}
}
#endif
/* Initialize global info */
p = (uint8 *)module_inst + module_inst_struct_size
+ module_inst_mem_inst_size;
@ -1264,6 +1293,8 @@ fail:
void
aot_deinstantiate(AOTModuleInstance *module_inst, bool is_sub_inst)
{
WASMModuleInstanceExtraCommon *common =
&((AOTModuleInstanceExtra *)module_inst->e)->common;
if (module_inst->exec_env_singleton) {
/* wasm_exec_env_destroy will call
wasm_cluster_wait_for_all_except_self to wait for other
@ -1306,7 +1337,7 @@ aot_deinstantiate(AOTModuleInstance *module_inst, bool is_sub_inst)
if (module_inst->func_type_indexes)
wasm_runtime_free(module_inst->func_type_indexes);
if (((AOTModuleInstanceExtra *)module_inst->e)->common.c_api_func_imports)
if (common->c_api_func_imports)
wasm_runtime_free(((AOTModuleInstanceExtra *)module_inst->e)
->common.c_api_func_imports);
@ -1317,6 +1348,13 @@ aot_deinstantiate(AOTModuleInstance *module_inst, bool is_sub_inst)
wasm_native_call_context_dtors((WASMModuleInstanceCommon *)module_inst);
}
#if WASM_ENABLE_BULK_MEMORY != 0
bh_bitmap_delete(common->data_dropped);
#endif
#if WASM_ENABLE_REF_TYPES != 0
bh_bitmap_delete(common->elem_dropped);
#endif
wasm_runtime_free(module_inst);
}
@ -2302,13 +2340,21 @@ aot_memory_init(AOTModuleInstance *module_inst, uint32 seg_index, uint32 offset,
{
AOTMemoryInstance *memory_inst = aot_get_default_memory(module_inst);
AOTModule *aot_module;
uint8 *data = NULL;
uint8 *data;
uint8 *maddr;
uint64 seg_len = 0;
uint64 seg_len;
if (bh_bitmap_get_bit(
((AOTModuleInstanceExtra *)module_inst->e)->common.data_dropped,
seg_index)) {
seg_len = 0;
data = NULL;
}
else {
aot_module = (AOTModule *)module_inst->module;
seg_len = aot_module->mem_init_data_list[seg_index]->byte_count;
data = aot_module->mem_init_data_list[seg_index]->bytes;
}
if (!wasm_runtime_validate_app_addr((WASMModuleInstanceCommon *)module_inst,
dst, len))
@ -2331,9 +2377,9 @@ aot_memory_init(AOTModuleInstance *module_inst, uint32 seg_index, uint32 offset,
bool
aot_data_drop(AOTModuleInstance *module_inst, uint32 seg_index)
{
AOTModule *aot_module = (AOTModule *)module_inst->module;
aot_module->mem_init_data_list[seg_index]->byte_count = 0;
bh_bitmap_set_bit(
((AOTModuleInstanceExtra *)module_inst->e)->common.data_dropped,
seg_index);
/* Currently we can't free the dropped data segment
as the mem_init_data_count is a continuous array */
return true;
@ -2546,9 +2592,9 @@ aot_get_module_inst_mem_consumption(const AOTModuleInstance *module_inst,
void
aot_drop_table_seg(AOTModuleInstance *module_inst, uint32 tbl_seg_idx)
{
AOTModule *module = (AOTModule *)module_inst->module;
AOTTableInitData *tbl_seg = module->table_init_data_list[tbl_seg_idx];
tbl_seg->is_dropped = true;
bh_bitmap_set_bit(
((AOTModuleInstanceExtra *)module_inst->e)->common.elem_dropped,
tbl_seg_idx);
}
void
@ -2576,7 +2622,9 @@ aot_table_init(AOTModuleInstance *module_inst, uint32 tbl_idx,
return;
}
if (tbl_seg->is_dropped) {
if (bh_bitmap_get_bit(
((AOTModuleInstanceExtra *)module_inst->e)->common.elem_dropped,
tbl_seg_idx)) {
aot_set_exception_with_id(module_inst, EXCE_OUT_OF_BOUNDS_TABLE_ACCESS);
return;
}

1
core/iwasm/compilation/aot.c
View File

@ -129,7 +129,6 @@ aot_create_table_init_data_list(const WASMModule *module)
data_list[i]->mode = module->table_segments[i].mode;
data_list[i]->elem_type = module->table_segments[i].elem_type;
/* runtime control it */
data_list[i]->is_dropped = false;
data_list[i]->table_index = module->table_segments[i].table_index;
bh_memcpy_s(&data_list[i]->offset, sizeof(AOTInitExpr),
&module->table_segments[i].base_offset,

1
core/iwasm/compilation/aot.h
View File

@ -143,7 +143,6 @@ typedef struct AOTTableInitData {
uint32 mode;
/* funcref or externref, elemkind will be considered as funcref */
uint32 elem_type;
bool is_dropped;
/* optional, only for active */
uint32 table_index;
/* Start address of init data */

2
core/iwasm/compilation/aot_emit_aot_file.c
View File

@ -269,7 +269,7 @@ static uint32
get_table_init_data_size(AOTTableInitData *table_init_data)
{
/*
* mode (4 bytes), elem_type (4 bytes), do not need is_dropped field
* mode (4 bytes), elem_type (4 bytes)
*
* table_index(4 bytes) + init expr type (4 bytes) + init expr value (8
* bytes)

34
core/iwasm/fast-jit/fe/jit_emit_memory.c
View File

@ -650,6 +650,7 @@ wasm_init_memory(WASMModuleInstance *inst, uint32 mem_idx, uint32 seg_idx,
WASMDataSeg *data_segment;
uint32 mem_size;
uint8 *mem_addr, *data_addr;
uint32 seg_len;
/* if d + n > the length of mem.data */
mem_inst = inst->memories[mem_idx];
@ -659,13 +660,19 @@ wasm_init_memory(WASMModuleInstance *inst, uint32 mem_idx, uint32 seg_idx,
/* if s + n > the length of data.data */
bh_assert(seg_idx < inst->module->data_seg_count);
if (bh_bitmap_get_bit(inst->e->common.data_dropped, seg_idx)) {
seg_len = 0;
data_addr = NULL;
}
else {
data_segment = inst->module->data_segments[seg_idx];
if (data_segment->data_length < data_offset
|| data_segment->data_length - data_offset < len)
seg_len = data_segment->data_length;
data_addr = data_segment->data + data_offset;
}
if (seg_len < data_offset || seg_len - data_offset < len)
goto out_of_bounds;
mem_addr = mem_inst->memory_data + mem_offset;
data_addr = data_segment->data + data_offset;
bh_memcpy_s(mem_addr, mem_size - mem_offset, data_addr, len);
return 0;
@ -706,21 +713,22 @@ fail:
return false;
}
static void
wasm_data_drop(WASMModuleInstance *inst, uint32 seg_idx)
{
bh_bitmap_set_bit(inst->e->common.data_dropped, seg_idx);
}
bool
jit_compile_op_data_drop(JitCompContext *cc, uint32 seg_idx)
{
JitReg module = get_module_reg(cc->jit_frame);
JitReg data_segments = jit_cc_new_reg_ptr(cc);
JitReg data_segment = jit_cc_new_reg_ptr(cc);
JitReg args[2] = { 0 };
GEN_INSN(LDPTR, data_segments, module,
NEW_CONST(I32, offsetof(WASMModule, data_segments)));
GEN_INSN(LDPTR, data_segment, data_segments,
NEW_CONST(I32, seg_idx * sizeof(WASMDataSeg *)));
GEN_INSN(STI32, NEW_CONST(I32, 0), data_segment,
NEW_CONST(I32, offsetof(WASMDataSeg, data_length)));
args[0] = get_module_inst_reg(cc->jit_frame);
args[1] = NEW_CONST(I32, seg_idx);
return true;
return jit_emit_callnative(cc, wasm_data_drop, 0, args,
sizeof(args) / sizeof(args[0]));
}
static int

27
core/iwasm/fast-jit/fe/jit_emit_table.c
View File

@ -10,21 +10,22 @@
#include "../jit_frontend.h"
#if WASM_ENABLE_REF_TYPES != 0
static void
wasm_elem_drop(WASMModuleInstance *inst, uint32 tbl_seg_idx)
{
bh_bitmap_set_bit(inst->e->common.elem_dropped, tbl_seg_idx);
}
bool
jit_compile_op_elem_drop(JitCompContext *cc, uint32 tbl_seg_idx)
{
JitReg module, tbl_segs;
JitReg args[2] = { 0 };
module = get_module_reg(cc->jit_frame);
args[0] = get_module_inst_reg(cc->jit_frame);
args[1] = NEW_CONST(I32, tbl_seg_idx);
tbl_segs = jit_cc_new_reg_ptr(cc);
GEN_INSN(LDPTR, tbl_segs, module,
NEW_CONST(I32, offsetof(WASMModule, table_segments)));
GEN_INSN(STI32, NEW_CONST(I32, true), tbl_segs,
NEW_CONST(I32, tbl_seg_idx * sizeof(WASMTableSeg)
+ offsetof(WASMTableSeg, is_dropped)));
return true;
return jit_emit_callnative(cc, wasm_elem_drop, 0, args,
sizeof(args) / sizeof(args[0]));
}
bool
@ -105,6 +106,12 @@ wasm_init_table(WASMModuleInstance *inst, uint32 tbl_idx, uint32 elem_idx,
if (offset_len_out_of_bounds(dst_offset, len, tbl_sz))
goto out_of_bounds;
if (!len)
return 0;
if (bh_bitmap_get_bit(inst->e->common.elem_dropped, elem_idx))
goto out_of_bounds;
bh_memcpy_s((uint8 *)tbl + offsetof(WASMTableInstance, elems)
+ dst_offset * sizeof(uint32),
(uint32)((tbl_sz - dst_offset) * sizeof(uint32)),

1
core/iwasm/interpreter/wasm.h
View File

@ -311,7 +311,6 @@ typedef struct WASMTableSeg {
uint32 mode;
/* funcref or externref, elemkind will be considered as funcref */
uint32 elem_type;
bool is_dropped;
/* optional, only for active */
uint32 table_index;
InitializerExpression base_offset;

21
core/iwasm/interpreter/wasm_interp_classic.c
View File

@ -3160,9 +3160,17 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
maddr = memory->memory_data + (uint32)addr;
#endif
seg_len = (uint64)module->module->data_segments[segment]
if (bh_bitmap_get_bit(module->e->common.data_dropped,
segment)) {
seg_len = 0;
data = NULL;
}
else {
seg_len =
(uint64)module->module->data_segments[segment]
->data_length;
data = module->module->data_segments[segment]->data;
}
if (offset + bytes > seg_len)
goto out_of_bounds;
@ -3175,7 +3183,8 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
uint32 segment;
read_leb_uint32(frame_ip, frame_ip_end, segment);
module->module->data_segments[segment]->data_length = 0;
bh_bitmap_set_bit(module->e->common.data_dropped,
segment);
break;
}
case WASM_OP_MEMORY_COPY:
@ -3270,8 +3279,8 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
break;
}
if (module->module->table_segments[elem_idx]
.is_dropped) {
if (bh_bitmap_get_bit(module->e->common.elem_dropped,
elem_idx)) {
wasm_set_exception(module,
"out of bounds table access");
goto got_exception;
@ -3303,8 +3312,8 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
read_leb_uint32(frame_ip, frame_ip_end, elem_idx);
bh_assert(elem_idx < module->module->table_seg_count);
module->module->table_segments[elem_idx].is_dropped =
true;
bh_bitmap_set_bit(module->e->common.elem_dropped,
elem_idx);
break;
}
case WASM_OP_TABLE_COPY:

23
core/iwasm/interpreter/wasm_interp_fast.c
View File

@ -3005,10 +3005,18 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
goto out_of_bounds;
maddr = memory->memory_data + (uint32)addr;
#endif
if (bh_bitmap_get_bit(module->e->common.data_dropped,
segment)) {
seg_len = 0;
data = NULL;
}
else {
seg_len = (uint64)module->module->data_segments[segment]
seg_len =
(uint64)module->module->data_segments[segment]
->data_length;
data = module->module->data_segments[segment]->data;
}
if (offset + bytes > seg_len)
goto out_of_bounds;
@ -3021,8 +3029,8 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
uint32 segment;
segment = read_uint32(frame_ip);
module->module->data_segments[segment]->data_length = 0;
bh_bitmap_set_bit(module->e->common.data_dropped,
segment);
break;
}
case WASM_OP_MEMORY_COPY:
@ -3114,8 +3122,8 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
break;
}
if (module->module->table_segments[elem_idx]
.is_dropped) {
if (bh_bitmap_get_bit(module->e->common.elem_dropped,
elem_idx)) {
wasm_set_exception(module,
"out of bounds table access");
goto got_exception;
@ -3144,9 +3152,8 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
{
uint32 elem_idx = read_uint32(frame_ip);
bh_assert(elem_idx < module->module->table_seg_count);
module->module->table_segments[elem_idx].is_dropped =
true;
bh_bitmap_set_bit(module->e->common.elem_dropped,
elem_idx);
break;
}
case WASM_OP_TABLE_COPY:

53
core/iwasm/interpreter/wasm_runtime.c
View File

@ -1666,6 +1666,31 @@ wasm_instantiate(WASMModule *module, WASMModuleInstance *parent,
}
#endif
#if WASM_ENABLE_BULK_MEMORY != 0
if (module->data_seg_count > 0) {
module_inst->e->common.data_dropped =
bh_bitmap_new(0, module->data_seg_count);
if (module_inst->e->common.data_dropped == NULL) {
LOG_DEBUG("failed to allocate bitmaps");
set_error_buf(error_buf, error_buf_size,
"failed to allocate bitmaps");
goto fail;
}
}
#endif
#if WASM_ENABLE_REF_TYPES != 0
if (module->table_seg_count > 0) {
module_inst->e->common.elem_dropped =
bh_bitmap_new(0, module->table_seg_count);
if (module_inst->e->common.elem_dropped == NULL) {
LOG_DEBUG("failed to allocate bitmaps");
set_error_buf(error_buf, error_buf_size,
"failed to allocate bitmaps");
goto fail;
}
}
#endif
#if WASM_ENABLE_DUMP_CALL_STACK != 0
if (!(module_inst->frames = runtime_malloc((uint64)sizeof(Vector),
error_buf, error_buf_size))) {
@ -2189,6 +2214,13 @@ wasm_deinstantiate(WASMModuleInstance *module_inst, bool is_sub_inst)
wasm_native_call_context_dtors((WASMModuleInstanceCommon *)module_inst);
}
#if WASM_ENABLE_BULK_MEMORY != 0
bh_bitmap_delete(module_inst->e->common.data_dropped);
#endif
#if WASM_ENABLE_REF_TYPES != 0
bh_bitmap_delete(module_inst->e->common.elem_dropped);
#endif
wasm_runtime_free(module_inst);
}
@ -3148,16 +3180,23 @@ llvm_jit_memory_init(WASMModuleInstance *module_inst, uint32 seg_index,
{
WASMMemoryInstance *memory_inst;
WASMModule *module;
uint8 *data = NULL;
uint8 *data;
uint8 *maddr;
uint64 seg_len = 0;
uint64 seg_len;
bh_assert(module_inst->module_type == Wasm_Module_Bytecode);
memory_inst = wasm_get_default_memory(module_inst);
if (bh_bitmap_get_bit(module_inst->e->common.data_dropped, seg_index)) {
seg_len = 0;
data = NULL;
}
else {
module = module_inst->module;
seg_len = module->data_segments[seg_index]->data_length;
data = module->data_segments[seg_index]->data;
}
if (!wasm_runtime_validate_app_addr((WASMModuleInstanceCommon *)module_inst,
dst, len))
@ -3182,7 +3221,7 @@ llvm_jit_data_drop(WASMModuleInstance *module_inst, uint32 seg_index)
{
bh_assert(module_inst->module_type == Wasm_Module_Bytecode);
module_inst->module->data_segments[seg_index]->data_length = 0;
bh_bitmap_set_bit(module_inst->e->common.data_dropped, seg_index);
/* Currently we can't free the dropped data segment
as they are stored in wasm bytecode */
return true;
@ -3193,12 +3232,8 @@ llvm_jit_data_drop(WASMModuleInstance *module_inst, uint32 seg_index)
void
llvm_jit_drop_table_seg(WASMModuleInstance *module_inst, uint32 tbl_seg_idx)
{
WASMTableSeg *tbl_segs;
bh_assert(module_inst->module_type == Wasm_Module_Bytecode);
tbl_segs = module_inst->module->table_segments;
tbl_segs[tbl_seg_idx].is_dropped = true;
bh_bitmap_set_bit(module_inst->e->common.elem_dropped, tbl_seg_idx);
}
void
@ -3227,7 +3262,7 @@ llvm_jit_table_init(WASMModuleInstance *module_inst, uint32 tbl_idx,
return;
}
if (tbl_seg->is_dropped) {
if (bh_bitmap_get_bit(module_inst->e->common.elem_dropped, tbl_seg_idx)) {
jit_set_exception_with_id(module_inst, EXCE_OUT_OF_BOUNDS_TABLE_ACCESS);
return;
}

7
core/iwasm/interpreter/wasm_runtime.h
View File

@ -8,6 +8,7 @@
#include "wasm.h"
#include "bh_atomic.h"
#include "bh_bitmap.h"
#include "bh_hashmap.h"
#include "../common/wasm_runtime_common.h"
#include "../common/wasm_exec_env.h"
@ -223,6 +224,12 @@ typedef struct WASMModuleInstanceExtraCommon {
/* Disable bounds checks or not */
bool disable_bounds_checks;
#endif
#if WASM_ENABLE_BULK_MEMORY != 0
bh_bitmap *data_dropped;
#endif
#if WASM_ENABLE_REF_TYPES != 0
bh_bitmap *elem_dropped;
#endif
} WASMModuleInstanceExtraCommon;
/* Extra info of WASM module instance for interpreter/jit mode */

27
core/shared/utils/bh_bitmap.c Normal file
View File

@ -0,0 +1,27 @@
/*
* Copyright (C) 2021 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include "bh_bitmap.h"
bh_bitmap *
bh_bitmap_new(uintptr_t begin_index, unsigned bitnum)
{
bh_bitmap *bitmap;
uint32 bitmap_size = (bitnum + 7) / 8;
uint32 total_size = offsetof(bh_bitmap, map) + bitmap_size;
if (bitnum > UINT32_MAX - 7 || total_size < offsetof(bh_bitmap, map)
|| (total_size - offsetof(bh_bitmap, map)) != bitmap_size) {
return NULL; /* integer overflow */
}
if ((bitmap = BH_MALLOC(total_size)) != NULL) {
memset(bitmap, 0, total_size);
bitmap->begin_index = begin_index;
bitmap->end_index = begin_index + bitnum;
}
return bitmap;
}

114
core/shared/utils/bh_bitmap.h Normal file
View File

@ -0,0 +1,114 @@
/*
* Copyright (C) 2021 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#ifndef _BH_BITMAP_H
#define _BH_BITMAP_H
#include "bh_platform.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* A simple fixed size bitmap.
*/
typedef struct bh_bitmap {
/* The first valid bit index. */
uintptr_t begin_index;
/* The last valid bit index plus one. */
uintptr_t end_index;
/* The bitmap. */
uint8 map[1];
} bh_bitmap;
/**
* Create a new bitmap.
*
* @param begin_index the first valid bit index
* @param bitnum maximal bit number of the bitmap.
*
* @return the new bitmap if succeeds, NULL otherwise.
*/
bh_bitmap *
bh_bitmap_new(uintptr_t begin_index, unsigned bitnum);
/**
* Delete a bitmap.
*
* @param bitmap the bitmap to be deleted
*/
static inline void
bh_bitmap_delete(bh_bitmap *bitmap)
{
if (bitmap != NULL)
BH_FREE(bitmap);
}
/**
* Check whether the given index is in the range of the bitmap.
*
* @param bitmap the bitmap
* @param n the bit index
*
* @return true if the index is in range, false otherwise
*/
static inline bool
bh_bitmap_is_in_range(bh_bitmap *bitmap, unsigned n)
{
return n >= bitmap->begin_index && n < bitmap->end_index;
}
/**
* Get a bit in the bitmap
*
* @param bitmap the bitmap
* @param n the n-th bit to be get
*
* @return value of the bit
*/
static inline int
bh_bitmap_get_bit(bh_bitmap *bitmap, unsigned n)
{
unsigned idx = n - bitmap->begin_index;
bh_assert(n >= bitmap->begin_index && n < bitmap->end_index);
return (bitmap->map[idx / 8] >> (idx % 8)) & 1;
}
/**
* Set a bit in the bitmap.
*
* @param bitmap the bitmap
* @param n the n-th bit to be set
*/
static inline void
bh_bitmap_set_bit(bh_bitmap *bitmap, unsigned n)
{
unsigned idx = n - bitmap->begin_index;
bh_assert(n >= bitmap->begin_index && n < bitmap->end_index);
bitmap->map[idx / 8] |= 1 << (idx % 8);
}
/**
* Clear a bit in the bitmap.
*
* @param bitmap the bitmap
* @param n the n-th bit to be cleared
*/
static inline void
bh_bitmap_clear_bit(bh_bitmap *bitmap, unsigned n)
{
unsigned idx = n - bitmap->begin_index;
bh_assert(n >= bitmap->begin_index && n < bitmap->end_index);
bitmap->map[idx / 8] &= ~(1 << (idx % 8));
}
#ifdef __cplusplus
}
#endif
#endif

1
product-mini/platforms/alios-things/aos.mk
View File

@ -98,6 +98,7 @@ $(NAME)_SOURCES := ${SHARED_ROOT}/platform/alios/alios_platform.c \
${SHARED_ROOT}/mem-alloc/ems/ems_alloc.c \
${SHARED_ROOT}/mem-alloc/ems/ems_hmu.c \
${SHARED_ROOT}/utils/bh_assert.c \
${SHARED_ROOT}/utils/bh_bitmap.c \
${SHARED_ROOT}/utils/bh_common.c \
${SHARED_ROOT}/utils/bh_hashmap.c \
${SHARED_ROOT}/utils/bh_list.c \

1
product-mini/platforms/nuttx/wamr.mk
View File

@ -371,6 +371,7 @@ CSRCS += nuttx_platform.c \
ems_alloc.c \
ems_hmu.c \
bh_assert.c \
bh_bitmap.c \
bh_common.c \
bh_hashmap.c \
bh_list.c \

1
samples/shared-module/.gitignore vendored Normal file
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@ -0,0 +1 @@
/out/

95
samples/shared-module/CMakeLists.txt Normal file
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@ -0,0 +1,95 @@
# Copyright (C) 2019 Intel Corporation. All rights reserved.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
cmake_minimum_required (VERSION 3.14)
include(CheckPIESupported)
project (shared-module)
set (CMAKE_CXX_STANDARD 17)
################ runtime settings ################
string (TOLOWER ${CMAKE_HOST_SYSTEM_NAME} WAMR_BUILD_PLATFORM)
if (APPLE)
add_definitions(-DBH_PLATFORM_DARWIN)
endif ()
# Reset default linker flags
set (CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")
set (CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")
# WAMR features switch
# Set WAMR_BUILD_TARGET, currently values supported:
# "X86_64", "AMD_64", "X86_32", "AARCH64[sub]", "ARM[sub]", "THUMB[sub]",
# "MIPS", "XTENSA", "RISCV64[sub]", "RISCV32[sub]"
if (NOT DEFINED WAMR_BUILD_TARGET)
if (CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm64|aarch64)")
set (WAMR_BUILD_TARGET "AARCH64")
elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "riscv64")
set (WAMR_BUILD_TARGET "RISCV64")
elseif (CMAKE_SIZEOF_VOID_P EQUAL 8)
# Build as X86_64 by default in 64-bit platform
set (WAMR_BUILD_TARGET "X86_64")
elseif (CMAKE_SIZEOF_VOID_P EQUAL 4)
# Build as X86_32 by default in 32-bit platform
set (WAMR_BUILD_TARGET "X86_32")
else ()
message(SEND_ERROR "Unsupported build target platform!")
endif ()
endif ()
if (NOT CMAKE_BUILD_TYPE)
set (CMAKE_BUILD_TYPE Debug)
endif ()
set (WAMR_BUILD_INTERP 1)
set (WAMR_BUILD_AOT 1)
set (WAMR_BUILD_JIT 0)
# fast interpreter
# set (WAMR_BUILD_FAST_INTERP 1)
# fast-jit
# set (WAMR_BUILD_FAST_JIT 1)
# llvm jit
# set (WAMR_BUILD_JIT 1)
# set (LLVM_DIR /usr/local/opt/llvm@14/lib/cmake/llvm)
set (WAMR_BUILD_REF_TYPES 1)
if (NOT MSVC)
# linker flags
if (NOT (CMAKE_C_COMPILER MATCHES ".*clang.*" OR CMAKE_C_COMPILER_ID MATCHES ".*Clang"))
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections")
endif ()
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wformat -Wformat-security")
if (WAMR_BUILD_TARGET MATCHES "X86_.*" OR WAMR_BUILD_TARGET STREQUAL "AMD_64")
if (NOT (CMAKE_C_COMPILER MATCHES ".*clang.*" OR CMAKE_C_COMPILER_ID MATCHES ".*Clang"))
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mindirect-branch-register")
endif ()
endif ()
endif ()
# build out vmlib
set (WAMR_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR}/../..)
include (${WAMR_ROOT_DIR}/build-scripts/runtime_lib.cmake)
add_library(vmlib ${WAMR_RUNTIME_LIB_SOURCE})
################ application related ################
include_directories(${CMAKE_CURRENT_LIST_DIR}/src)
include (${SHARED_DIR}/utils/uncommon/shared_uncommon.cmake)
add_executable (shared-module src/main.c ${UNCOMMON_SHARED_SOURCE})
check_pie_supported()
set_target_properties (shared-module PROPERTIES POSITION_INDEPENDENT_CODE ON)
if (APPLE)
target_link_libraries (shared-module vmlib -lm -ldl -lpthread ${LLVM_AVAILABLE_LIBS})
else ()
target_link_libraries (shared-module vmlib -lm -ldl -lpthread -lrt ${LLVM_AVAILABLE_LIBS})
endif ()

5
samples/shared-module/README.md Normal file
View File

@ -0,0 +1,5 @@
The "shared-module" sample project
==================================
This sample demonstrates a bug described in:
https://github.com/bytecodealliance/wasm-micro-runtime/issues/2735.

63
samples/shared-module/build.sh Executable file
View File

@ -0,0 +1,63 @@
#
# Copyright (C) 2019 Intel Corporation. All rights reserved.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
#!/bin/bash
CURR_DIR=$PWD
WAMR_DIR=${PWD}/../..
OUT_DIR=${PWD}/out
WASM_APPS=${PWD}/wasm-apps
rm -rf ${OUT_DIR}
mkdir ${OUT_DIR}
mkdir ${OUT_DIR}/wasm-apps
echo "##################### build shared-module project"
cd ${CURR_DIR}
mkdir -p cmake_build
cd cmake_build
cmake ..
make -j ${nproc}
if [ $? != 0 ];then
echo "BUILD_FAIL shared-module exit as $?\n"
exit 2
fi
cp -a shared-module ${OUT_DIR}
printf "\n"
echo "##################### build wasm apps"
cd ${WASM_APPS}
for i in `ls *.wat`
do
APP_SRC="$i"
OUT_FILE=${i%.*}.wasm
# Note: the CI installs wabt in /opt/wabt
if type wat2wasm; then
WAT2WASM=${WAT2WASM:-wat2wasm}
elif [ -x /opt/wabt/bin/wat2wasm ]; then
WAT2WASM=${WAT2WASM:-/opt/wabt/bin/wat2wasm}
fi
${WAT2WASM} -o ${OUT_DIR}/wasm-apps/${OUT_FILE} ${APP_SRC}
# aot
# wamrc -o ${OUT_DIR}/wasm-apps/${OUT_FILE}.aot ${OUT_DIR}/wasm-apps/${OUT_FILE}
# mv ${OUT_DIR}/wasm-apps/${OUT_FILE}.aot ${OUT_DIR}/wasm-apps/${OUT_FILE}
if [ -f ${OUT_DIR}/wasm-apps/${OUT_FILE} ]; then
echo "build ${OUT_FILE} success"
else
echo "build ${OUT_FILE} fail"
fi
done
echo "##################### build wasm apps done"

3
samples/shared-module/run.sh Executable file
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@ -0,0 +1,3 @@
#!/bin/bash
out/shared-module -f out/wasm-apps/testapp.wasm

206
samples/shared-module/src/main.c Normal file
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@ -0,0 +1,206 @@
/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include "wasm_export.h"
#include "bh_read_file.h"
#include "bh_getopt.h"
void
print_usage(void)
{
fprintf(stdout, "Options:\r\n");
fprintf(stdout, " -f [path of wasm file] \n");
}
int
main(int argc, char *argv_main[])
{
int exit_code = 1;
static char global_heap_buf[512 * 1024];
char *buffer;
char error_buf[128];
int opt;
char *wasm_path = NULL;
const unsigned int N = 4;
wasm_module_t module = NULL;
wasm_module_inst_t module_inst[N];
wasm_exec_env_t exec_env[N];
const char *name_test_data_drop = "test_data_drop";
const char *name_test_elem_drop = "test_elem_drop";
wasm_function_inst_t func_test_data_drop[N];
wasm_function_inst_t func_test_elem_drop[N];
unsigned int i;
unsigned int iter;
uint32 buf_size, stack_size = 8092, heap_size = 8092;
for (i = 0; i < N; i++) {
module_inst[i] = NULL;
exec_env[i] = NULL;
func_test_data_drop[i] = NULL;
func_test_elem_drop[i] = NULL;
}
RuntimeInitArgs init_args;
memset(&init_args, 0, sizeof(RuntimeInitArgs));
while ((opt = getopt(argc, argv_main, "hf:")) != -1) {
switch (opt) {
case 'f':
wasm_path = optarg;
break;
case 'h':
print_usage();
return 0;
case '?':
print_usage();
return 0;
}
}
if (optind == 1) {
print_usage();
return 0;
}
memset(&init_args, 0, sizeof(init_args));
init_args.mem_alloc_type = Alloc_With_Pool;
init_args.mem_alloc_option.pool.heap_buf = global_heap_buf;
init_args.mem_alloc_option.pool.heap_size = sizeof(global_heap_buf);
if (!wasm_runtime_full_init(&init_args)) {
printf("Init runtime environment failed.\n");
return -1;
}
buffer = bh_read_file_to_buffer(wasm_path, &buf_size);
if (!buffer) {
printf("Open wasm app file [%s] failed.\n", wasm_path);
goto fail;
}
module = wasm_runtime_load((uint8 *)buffer, buf_size, error_buf,
sizeof(error_buf));
if (!module) {
printf("Load wasm module failed. error: %s\n", error_buf);
goto fail;
}
for (i = 0; i < N; i++) {
module_inst[i] = wasm_runtime_instantiate(module, stack_size, heap_size,
error_buf, sizeof(error_buf));
if (!module_inst[i]) {
printf("Instantiate wasm module failed. error: %s\n", error_buf);
goto fail;
}
exec_env[i] = wasm_runtime_create_exec_env(module_inst[i], stack_size);
if (!exec_env[i]) {
printf("Create wasm execution environment failed.\n");
goto fail;
}
func_test_data_drop[i] = wasm_runtime_lookup_function(
module_inst[i], name_test_data_drop, NULL);
if (!func_test_data_drop[i]) {
printf("The wasm function %s is not found.\n", name_test_data_drop);
goto fail;
}
func_test_elem_drop[i] = wasm_runtime_lookup_function(
module_inst[i], name_test_elem_drop, NULL);
if (!func_test_elem_drop[i]) {
printf("The wasm function %s is not found.\n", name_test_elem_drop);
goto fail;
}
}
for (iter = 0; iter < 2; iter++) {
/*
* as we drop data/table in the first iteration,
* the later iterations should trap.
*/
const bool should_trap = iter > 0;
for (i = 0; i < N; i++) {
uint32_t argv[1] = {};
if (wasm_runtime_call_wasm(exec_env[i], func_test_data_drop[i], 0,
argv)) {
uint32_t result = argv[0];
printf(
"Native finished calling wasm function: %s, return: %x\n",
name_test_data_drop, result);
if (result != 0x64636261) { /* "abcd" */
printf("unexpected return value\n");
goto fail;
}
if (should_trap) {
printf("a trap is expected\n");
goto fail;
}
}
else if (should_trap) {
printf("call wasm function %s failed as expected. error: %s\n",
name_test_data_drop,
wasm_runtime_get_exception(module_inst[i]));
}
else {
printf("call wasm function %s failed. error: %s\n",
name_test_data_drop,
wasm_runtime_get_exception(module_inst[i]));
goto fail;
}
}
for (i = 0; i < N; i++) {
wasm_runtime_clear_exception(module_inst[i]);
uint32_t argv[1] = {};
if (wasm_runtime_call_wasm(exec_env[i], func_test_elem_drop[i], 0,
argv)) {
uint32_t result = argv[0];
printf(
"Native finished calling wasm function: %s, return: %x\n",
name_test_elem_drop, result);
if (result != 0) {
printf("unexpected return value\n");
goto fail;
}
if (should_trap) {
printf("a trap is expected\n");
goto fail;
}
}
else if (should_trap) {
printf("call wasm function %s failed as expected. error: %s\n",
name_test_elem_drop,
wasm_runtime_get_exception(module_inst[i]));
}
else {
printf("call wasm function %s failed. error: %s\n",
name_test_elem_drop,
wasm_runtime_get_exception(module_inst[i]));
goto fail;
}
}
}
exit_code = 0;
fail:
for (i = 0; i < N; i++) {
if (exec_env[i])
wasm_runtime_destroy_exec_env(exec_env[i]);
if (module_inst[i])
wasm_runtime_deinstantiate(module_inst[i]);
}
if (module)
wasm_runtime_unload(module);
if (buffer)
BH_FREE(buffer);
wasm_runtime_destroy();
return exit_code;
}

22
samples/shared-module/wasm-apps/testapp.wat Normal file
View File

@ -0,0 +1,22 @@
;; Copyright (C) 2023 Midokura Japan KK. All rights reserved.
;; SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
(module
(func (export "test_data_drop") (result i32)
(memory.init 0 (i32.const 0) (i32.const 0) (i32.const 4))
data.drop 0
(i32.load (i32.const 0))
)
(func (export "test_elem_drop") (result i32)
(table.init 0 (i32.const 0) (i32.const 0) (i32.const 4))
elem.drop 0
i32.const 3
table.get 0
ref.is_null
)
(func $f)
(memory 1 1)
(table 4 4 funcref)
(data "abcd")
(elem func $f $f $f $f)
)