Implement shared heap for AOT (#3815)

.github/workflows/compilation_on_android_ubuntu.yml

@@ -585,6 +585,7 @@ jobs:
           cmake ..
           cmake --build . --config Debug --parallel 4
           ./shared_heap_test
+          ./shared_heap_test --aot
 
   test:
     needs:

.github/workflows/compilation_on_macos.yml

@@ -394,3 +394,4 @@ jobs:
           cmake ..
           cmake --build . --config Debug --parallel 4
           ./shared_heap_test
+          ./shared_heap_test --aot

.github/workflows/nightly_run.yml

@@ -600,6 +600,7 @@ jobs:
           cmake ..
           cmake --build . --config Debug --parallel 4
           ./shared_heap_test
+          ./shared_heap_test --aot
 
   test:
     needs:

core/config.h

@@ -396,7 +396,9 @@
 #define APP_HEAP_SIZE_DEFAULT (8 * 1024)
 #endif
 #define APP_HEAP_SIZE_MIN (256)
-#define APP_HEAP_SIZE_MAX (512 * 1024 * 1024)
+/* The ems memory allocator supports maximal heap size 1GB,
+   see ems_gc_internal.h */
+#define APP_HEAP_SIZE_MAX (1024 * 1024 * 1024)
 
 /* Default min/max gc heap size of each app */
 #ifndef GC_HEAP_SIZE_DEFAULT

core/iwasm/aot/aot_runtime.c

@@ -57,6 +57,9 @@ bh_static_assert(sizeof(AOTMemoryInstance) == 120);
 bh_static_assert(offsetof(AOTTableInstance, elems) == 24);
 
 bh_static_assert(offsetof(AOTModuleInstanceExtra, stack_sizes) == 0);
+bh_static_assert(offsetof(AOTModuleInstanceExtra, shared_heap_base_addr_adj)
+                 == 8);
+bh_static_assert(offsetof(AOTModuleInstanceExtra, shared_heap_start_off) == 16);
 
 bh_static_assert(sizeof(CApiFuncImport) == sizeof(uintptr_t) * 3);
 
@@ -1885,6 +1888,24 @@ aot_instantiate(AOTModule *module, AOTModuleInstance *parent,
     extra->stack_sizes =
         aot_get_data_section_addr(module, AOT_STACK_SIZES_SECTION_NAME, NULL);
 
+    /*
+     * The AOT code checks whether the n bytes to access are in shared heap
+     * by checking whether the beginning address meets:
+     *   addr >= start_off && addr <= end_off - n-bytes + 1
+     * where n is 1/2/4/8/16 and `end_off - n-bytes + 1` is constant, e.g.,
+     *   UINT32_MAX, UINT32_MAX-1, UINT32_MAX-3 for n = 1, 2 or 4 in 32-bit
+     * target. To simplify the check, when shared heap is disabled, we set
+     * the start off to UINT64_MAX in 64-bit target and UINT32_MAX in 32-bit
+     * target, so in the checking, the above formula will be false, we don't
+     * need to check whether the shared heap is enabled or not in the AOT
+     * code.
+     */
+#if UINTPTR_MAX == UINT64_MAX
+    extra->shared_heap_start_off.u64 = UINT64_MAX;
+#else
+    extra->shared_heap_start_off.u32[0] = UINT32_MAX;
+#endif
+
 #if WASM_ENABLE_PERF_PROFILING != 0
     total_size = sizeof(AOTFuncPerfProfInfo)
                  * ((uint64)module->import_func_count + module->func_count);

core/iwasm/aot/aot_runtime.h

@@ -111,6 +111,14 @@ typedef struct AOTFunctionInstance {
 
 typedef struct AOTModuleInstanceExtra {
     DefPointer(const uint32 *, stack_sizes);
+    /*
+     * Adjusted shared heap based addr to simple the calculation
+     * in the aot code. The value is:
+     *   shared_heap->base_addr - shared_heap->start_off
+     */
+    DefPointer(uint8 *, shared_heap_base_addr_adj);
+    MemBound shared_heap_start_off;
+
     WASMModuleInstanceExtraCommon common;
     AOTFunctionInstance **functions;
     uint32 function_count;

core/iwasm/common/wasm_memory.c

@@ -165,7 +165,7 @@ runtime_malloc(uint64 size)
 WASMSharedHeap *
 wasm_runtime_create_shared_heap(SharedHeapInitArgs *init_args)
 {
-    uint64 heap_struct_size = sizeof(WASMSharedHeap);
+    uint64 heap_struct_size = sizeof(WASMSharedHeap), map_size;
     uint32 size = init_args->size;
     WASMSharedHeap *heap;
 
@@ -192,7 +192,18 @@ wasm_runtime_create_shared_heap(SharedHeapInitArgs *init_args)
         goto fail3;
     }
 
-    if (!(heap->base_addr = wasm_mmap_linear_memory(size, size))) {
+#ifndef OS_ENABLE_HW_BOUND_CHECK
+    map_size = size;
+#else
+    /* Totally 8G is mapped, the opcode load/store address range is 0 to 8G:
+     *   ea = i + memarg.offset
+     * both i and memarg.offset are u32 in range 0 to 4G
+     * so the range of ea is 0 to 8G
+     */
+    map_size = 8 * (uint64)BH_GB;
+#endif
+
+    if (!(heap->base_addr = wasm_mmap_linear_memory(map_size, size))) {
         goto fail3;
     }
     if (!mem_allocator_create_with_struct_and_pool(
@@ -213,7 +224,7 @@ wasm_runtime_create_shared_heap(SharedHeapInitArgs *init_args)
     return heap;
 
 fail4:
-    wasm_munmap_linear_memory(heap->base_addr, size, size);
+    wasm_munmap_linear_memory(heap->base_addr, size, map_size);
 fail3:
     wasm_runtime_free(heap->heap_handle);
 fail2:
@@ -245,18 +256,52 @@ wasm_runtime_attach_shared_heap_internal(WASMModuleInstanceCommon *module_inst,
 
 #if WASM_ENABLE_INTERP != 0
     if (module_inst->module_type == Wasm_Module_Bytecode) {
-        if (((WASMModuleInstance *)module_inst)->e->shared_heap) {
+        WASMModuleInstanceExtra *e =
+            (WASMModuleInstanceExtra *)((WASMModuleInstance *)module_inst)->e;
+        if (e->shared_heap) {
             LOG_WARNING("A shared heap is already attached");
             return false;
         }
-        ((WASMModuleInstance *)module_inst)->e->shared_heap = shared_heap;
-    }
+        e->shared_heap = shared_heap;
+#if WASM_ENABLE_JIT != 0
+#if UINTPTR_MAX == UINT64_MAX
+        if (memory->is_memory64)
+            e->shared_heap_start_off.u64 = shared_heap->start_off_mem64;
+        else
+            e->shared_heap_start_off.u64 = shared_heap->start_off_mem32;
+        e->shared_heap_base_addr_adj =
+            shared_heap->base_addr - e->shared_heap_start_off.u64;
+#else
+        e->shared_heap_start_off.u32[0] = (uint32)shared_heap->start_off_mem32;
+        e->shared_heap_base_addr_adj =
+            shared_heap->base_addr - e->shared_heap_start_off.u32[0];
 #endif
+#endif /* end of WASM_ENABLE_JIT != 0 */
+    }
+#endif /* end of WASM_ENABLE_INTERP != 0 */
 #if WASM_ENABLE_AOT != 0
     if (module_inst->module_type == Wasm_Module_AoT) {
-        // TODO
-    }
+        AOTModuleInstanceExtra *e =
+            (AOTModuleInstanceExtra *)((AOTModuleInstance *)module_inst)->e;
+        if (e->shared_heap) {
+            LOG_WARNING("A shared heap is already attached");
+            return false;
+        }
+        e->shared_heap = shared_heap;
+#if UINTPTR_MAX == UINT64_MAX
+        if (memory->is_memory64)
+            e->shared_heap_start_off.u64 = shared_heap->start_off_mem64;
+        else
+            e->shared_heap_start_off.u64 = shared_heap->start_off_mem32;
+        e->shared_heap_base_addr_adj =
+            shared_heap->base_addr - e->shared_heap_start_off.u64;
+#else
+        e->shared_heap_start_off.u32[0] = (uint32)shared_heap->start_off_mem32;
+        e->shared_heap_base_addr_adj =
+            shared_heap->base_addr - e->shared_heap_start_off.u32[0];
 #endif
+    }
+#endif /* end of WASM_ENABLE_AOT != 0 */
 
     return true;
 }
@@ -277,14 +322,32 @@ wasm_runtime_detach_shared_heap_internal(WASMModuleInstanceCommon *module_inst)
 {
 #if WASM_ENABLE_INTERP != 0
     if (module_inst->module_type == Wasm_Module_Bytecode) {
-        ((WASMModuleInstance *)module_inst)->e->shared_heap = NULL;
-    }
+        WASMModuleInstanceExtra *e =
+            (WASMModuleInstanceExtra *)((WASMModuleInstance *)module_inst)->e;
+        e->shared_heap = NULL;
+#if WASM_ENABLE_JIT != 0
+#if UINTPTR_MAX == UINT64_MAX
+        e->shared_heap_start_off.u64 = UINT64_MAX;
+#else
+        e->shared_heap_start_off.u32[0] = UINT32_MAX;
 #endif
+        e->shared_heap_base_addr_adj = NULL;
+#endif
+    }
+#endif /* end of WASM_ENABLE_INTERP != 0 */
 #if WASM_ENABLE_AOT != 0
     if (module_inst->module_type == Wasm_Module_AoT) {
-        // TODO
-    }
+        AOTModuleInstanceExtra *e =
+            (AOTModuleInstanceExtra *)((AOTModuleInstance *)module_inst)->e;
+        e->shared_heap = NULL;
+#if UINTPTR_MAX == UINT64_MAX
+        e->shared_heap_start_off.u64 = UINT64_MAX;
+#else
+        e->shared_heap_start_off.u32[0] = UINT32_MAX;
 #endif
+        e->shared_heap_base_addr_adj = NULL;
+    }
+#endif /* end of WASM_ENABLE_AOT != 0 */
 }
 
 void
@@ -307,13 +370,21 @@ get_shared_heap(WASMModuleInstanceCommon *module_inst_comm)
 #endif
 #if WASM_ENABLE_AOT != 0
     if (module_inst_comm->module_type == Wasm_Module_AoT) {
-        // TODO
-        return NULL;
+        AOTModuleInstanceExtra *e =
+            (AOTModuleInstanceExtra *)((AOTModuleInstance *)module_inst_comm)
+                ->e;
+        return e->shared_heap;
     }
 #endif
     return NULL;
 }
 
+WASMSharedHeap *
+wasm_runtime_get_shared_heap(WASMModuleInstanceCommon *module_inst_comm)
+{
+    return get_shared_heap(module_inst_comm);
+}
+
 static bool
 is_app_addr_in_shared_heap(WASMModuleInstanceCommon *module_inst,
                            bool is_memory64, uint64 app_offset, uint32 bytes)
@@ -324,6 +395,10 @@ is_app_addr_in_shared_heap(WASMModuleInstanceCommon *module_inst,
         return false;
     }
 
+    if (bytes == 0) {
+        bytes = 1;
+    }
+
     if (!is_memory64) {
         if (app_offset >= heap->start_off_mem32
             && app_offset <= UINT32_MAX - bytes + 1) {
@@ -457,17 +532,23 @@ wasm_runtime_memory_init(mem_alloc_type_t mem_alloc_type,
 
 #if WASM_ENABLE_SHARED_HEAP != 0
 static void
-wasm_runtime_destroy_shared_heaps()
+destroy_shared_heaps()
 {
     WASMSharedHeap *heap = shared_heap_list;
     WASMSharedHeap *cur;
+    uint64 map_size;
 
     while (heap) {
         cur = heap;
         heap = heap->next;
         mem_allocator_destroy(cur->heap_handle);
         wasm_runtime_free(cur->heap_handle);
-        wasm_munmap_linear_memory(cur->base_addr, cur->size, cur->size);
+#ifndef OS_ENABLE_HW_BOUND_CHECK
+        map_size = cur->size;
+#else
+        map_size = 8 * (uint64)BH_GB;
+#endif
+        wasm_munmap_linear_memory(cur->base_addr, cur->size, map_size);
         wasm_runtime_free(cur);
     }
 }
@@ -477,7 +558,7 @@ void
 wasm_runtime_memory_destroy(void)
 {
 #if WASM_ENABLE_SHARED_HEAP != 0
-    wasm_runtime_destroy_shared_heaps();
+    destroy_shared_heaps();
 #endif
 
     if (memory_mode == MEMORY_MODE_POOL) {
@@ -1178,7 +1259,7 @@ wasm_mremap_linear_memory(void *mapped_mem, uint64 old_size, uint64 new_size,
 }
 
 static void *
-wasm_mmap_linear_memory(uint64_t map_size, uint64 commit_size)
+wasm_mmap_linear_memory(uint64 map_size, uint64 commit_size)
 {
     return wasm_mremap_linear_memory(NULL, 0, map_size, commit_size);
 }

core/iwasm/common/wasm_memory.h

@@ -54,9 +54,13 @@ wasm_runtime_attach_shared_heap_internal(WASMModuleInstanceCommon *module_inst,
 
 void
 wasm_runtime_detach_shared_heap(WASMModuleInstanceCommon *module_inst);
+
 void
 wasm_runtime_detach_shared_heap_internal(WASMModuleInstanceCommon *module_inst);
 
+WASMSharedHeap *
+wasm_runtime_get_shared_heap(WASMModuleInstanceCommon *module_inst_comm);
+
 uint64
 wasm_runtime_shared_heap_malloc(WASMModuleInstanceCommon *module_inst,
                                 uint64 size, void **p_native_addr);

core/iwasm/common/wasm_runtime_common.c

@@ -185,6 +185,9 @@ static bool
 is_sig_addr_in_guard_pages(void *sig_addr, WASMModuleInstance *module_inst)
 {
     WASMMemoryInstance *memory_inst;
+#if WASM_ENABLE_SHARED_HEAP != 0
+    WASMSharedHeap *shared_heap;
+#endif
     uint8 *mapped_mem_start_addr = NULL;
     uint8 *mapped_mem_end_addr = NULL;
     uint32 i;
@@ -202,6 +205,21 @@ is_sig_addr_in_guard_pages(void *sig_addr, WASMModuleInstance *module_inst)
         }
     }
 
+#if WASM_ENABLE_SHARED_HEAP != 0
+    shared_heap =
+        wasm_runtime_get_shared_heap((WASMModuleInstanceCommon *)module_inst);
+    if (shared_heap) {
+        mapped_mem_start_addr = shared_heap->base_addr;
+        mapped_mem_end_addr = shared_heap->base_addr + 8 * (uint64)BH_GB;
+        if (mapped_mem_start_addr <= (uint8 *)sig_addr
+            && (uint8 *)sig_addr < mapped_mem_end_addr) {
+            /* The address which causes segmentation fault is inside
+               the shared heap's guard regions */
+            return true;
+        }
+    }
+#endif
+
     return false;
 }
 

core/iwasm/common/wasm_shared_memory.c

@@ -8,6 +8,9 @@
 #if WASM_ENABLE_THREAD_MGR != 0
 #include "../libraries/thread-mgr/thread_manager.h"
 #endif
+#if WASM_ENABLE_AOT != 0
+#include "../aot/aot_runtime.h"
+#endif
 
 /*
  * Note: this lock can be per memory.
@@ -257,7 +260,9 @@ is_native_addr_in_shared_heap(WASMModuleInstanceCommon *module_inst,
 #endif
 #if WASM_ENABLE_AOT != 0
     if (module_inst->module_type == Wasm_Module_AoT) {
-        // TODO
+        AOTModuleInstanceExtra *e =
+            (AOTModuleInstanceExtra *)((AOTModuleInstance *)module_inst)->e;
+        shared_heap = e->shared_heap;
     }
 #endif
 

core/iwasm/compilation/aot_emit_memory.c

@@ -118,10 +118,10 @@ aot_check_memory_overflow(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
 {
     LLVMValueRef offset_const =
         MEMORY64_COND_VALUE(I64_CONST(offset), I32_CONST(offset));
-    LLVMValueRef addr, maddr, offset1, cmp1, cmp2, cmp;
+    LLVMValueRef addr, maddr, maddr_phi = NULL, offset1, cmp1, cmp2, cmp;
     LLVMValueRef mem_base_addr, mem_check_bound;
     LLVMBasicBlockRef block_curr = LLVMGetInsertBlock(comp_ctx->builder);
-    LLVMBasicBlockRef check_succ;
+    LLVMBasicBlockRef check_succ, block_maddr_phi = NULL;
     AOTValue *aot_value_top;
     uint32 local_idx_of_aot_value = 0;
     uint64 const_value;
@@ -131,6 +131,11 @@ aot_check_memory_overflow(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
     bool is_shared_memory =
         comp_ctx->comp_data->memories[0].flags & SHARED_MEMORY_FLAG;
 #endif
+#if WASM_ENABLE_MEMORY64 == 0
+    bool is_memory64 = false;
+#else
+    bool is_memory64 = IS_MEMORY64;
+#endif
 
     is_target_64bit = (comp_ctx->pointer_size == sizeof(uint64)) ? true : false;
 
@@ -268,8 +273,137 @@ aot_check_memory_overflow(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
     }
 
     /* offset1 = offset + addr; */
+    /* TODO: check whether integer overflow occurs when memory is 64-bit
+             and boundary check is enabled */
     BUILD_OP(Add, offset_const, addr, offset1, "offset1");
 
+    if (comp_ctx->enable_shared_heap /* TODO: && mem_idx == 0 */) {
+        LLVMBasicBlockRef app_addr_in_shared_heap, app_addr_in_linear_mem;
+        LLVMValueRef is_in_shared_heap, shared_heap_check_bound = NULL;
+
+        /* Add basic blocks */
+        ADD_BASIC_BLOCK(app_addr_in_shared_heap, "app_addr_in_shared_heap");
+        ADD_BASIC_BLOCK(app_addr_in_linear_mem, "app_addr_in_linear_mem");
+        ADD_BASIC_BLOCK(block_maddr_phi, "maddr_phi");
+
+        LLVMMoveBasicBlockAfter(app_addr_in_shared_heap, block_curr);
+        LLVMMoveBasicBlockAfter(app_addr_in_linear_mem,
+                                app_addr_in_shared_heap);
+        LLVMMoveBasicBlockAfter(block_maddr_phi, app_addr_in_linear_mem);
+
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, block_maddr_phi);
+        if (!(maddr_phi =
+                  LLVMBuildPhi(comp_ctx->builder,
+                               enable_segue ? INT8_PTR_TYPE_GS : INT8_PTR_TYPE,
+                               "maddr_phi"))) {
+            aot_set_last_error("llvm build phi failed");
+            goto fail;
+        }
+
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, block_curr);
+
+        if (!is_target_64bit) {
+            /* Check whether interger overflow occurs in addr + offset */
+            LLVMBasicBlockRef check_integer_overflow_end;
+            ADD_BASIC_BLOCK(check_integer_overflow_end,
+                            "check_integer_overflow_end");
+            LLVMMoveBasicBlockAfter(check_integer_overflow_end, block_curr);
+
+            BUILD_ICMP(LLVMIntULT, offset1, addr, cmp1, "cmp1");
+            if (!aot_emit_exception(comp_ctx, func_ctx,
+                                    EXCE_OUT_OF_BOUNDS_MEMORY_ACCESS, true,
+                                    cmp1, check_integer_overflow_end)) {
+                goto fail;
+            }
+            SET_BUILD_POS(check_integer_overflow_end);
+        }
+
+        shared_heap_check_bound =
+            is_memory64 ? I64_CONST(UINT64_MAX - bytes + 1)
+                        : (comp_ctx->pointer_size == sizeof(uint64)
+                               ? I64_CONST(UINT32_MAX - bytes + 1)
+                               : I32_CONST(UINT32_MAX - bytes + 1));
+        CHECK_LLVM_CONST(shared_heap_check_bound);
+
+        /* Check whether the bytes to access are in shared heap */
+        if (!comp_ctx->enable_bound_check) {
+            /* Use IntUGT but not IntUGE to compare, since (1) in the ems
+               memory allocator, the hmu node includes hmu header and hmu
+               memory, only the latter is returned to the caller as the
+               allocated memory, the hmu header isn't returned so the
+               first byte of the shared heap won't be accesed, (2) using
+               IntUGT gets better performance than IntUGE in some cases */
+            BUILD_ICMP(LLVMIntUGT, offset1, func_ctx->shared_heap_start_off,
+                       is_in_shared_heap, "is_in_shared_heap");
+            /* We don't check the shared heap's upper boundary if boundary
+               check isn't enabled, the runtime may also use the guard pages
+               of shared heap to check the boundary if hardware boundary
+               check feature is enabled. */
+        }
+        else {
+            /* Use IntUGT but not IntUGE to compare, same as above */
+            BUILD_ICMP(LLVMIntUGT, offset1, func_ctx->shared_heap_start_off,
+                       cmp1, "cmp1");
+            /* Check the shared heap's upper boundary if boundary check is
+               enabled */
+            BUILD_ICMP(LLVMIntULE, offset1, shared_heap_check_bound, cmp2,
+                       "cmp2");
+            BUILD_OP(And, cmp1, cmp2, is_in_shared_heap, "is_in_shared_heap");
+        }
+
+        if (!LLVMBuildCondBr(comp_ctx->builder, is_in_shared_heap,
+                             app_addr_in_shared_heap, app_addr_in_linear_mem)) {
+            aot_set_last_error("llvm build cond br failed");
+            goto fail;
+        }
+
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, app_addr_in_shared_heap);
+
+        /* Get native address inside shared heap */
+        if (!(maddr =
+                  LLVMBuildInBoundsGEP2(comp_ctx->builder, INT8_TYPE,
+                                        func_ctx->shared_heap_base_addr_adj,
+                                        &offset1, 1, "maddr_shared_heap"))) {
+            aot_set_last_error("llvm build inbounds gep failed");
+            goto fail;
+        }
+
+        if (enable_segue) {
+            LLVMValueRef mem_base_addr_u64, maddr_u64, offset_to_mem_base;
+
+            if (!(maddr_u64 = LLVMBuildPtrToInt(comp_ctx->builder, maddr,
+                                                I64_TYPE, "maddr_u64"))
+                || !(mem_base_addr_u64 =
+                         LLVMBuildPtrToInt(comp_ctx->builder, mem_base_addr,
+                                           I64_TYPE, "mem_base_addr_u64"))) {
+                aot_set_last_error("llvm build ptr to int failed");
+                goto fail;
+            }
+            if (!(offset_to_mem_base =
+                      LLVMBuildSub(comp_ctx->builder, maddr_u64,
+                                   mem_base_addr_u64, "offset_to_mem_base"))) {
+                aot_set_last_error("llvm build sub failed");
+                goto fail;
+            }
+            if (!(maddr = LLVMBuildIntToPtr(
+                      comp_ctx->builder, offset_to_mem_base, INT8_PTR_TYPE_GS,
+                      "maddr_shared_heap_segue"))) {
+                aot_set_last_error("llvm build int to ptr failed.");
+                goto fail;
+            }
+        }
+
+        LLVMAddIncoming(maddr_phi, &maddr, &app_addr_in_shared_heap, 1);
+
+        if (!LLVMBuildBr(comp_ctx->builder, block_maddr_phi)) {
+            aot_set_last_error("llvm build br failed");
+            goto fail;
+        }
+
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, app_addr_in_linear_mem);
+        block_curr = LLVMGetInsertBlock(comp_ctx->builder);
+    }
+
     if (comp_ctx->enable_bound_check
         && !(is_local_of_aot_value
              && aot_checked_addr_list_find(func_ctx, local_idx_of_aot_value,
@@ -305,10 +439,16 @@ aot_check_memory_overflow(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
             BUILD_ICMP(LLVMIntUGT, offset1, mem_check_bound, cmp, "cmp");
         }
         else {
-            /* Check integer overflow */
-            BUILD_ICMP(LLVMIntULT, offset1, addr, cmp1, "cmp1");
-            BUILD_ICMP(LLVMIntUGT, offset1, mem_check_bound, cmp2, "cmp2");
-            BUILD_OP(Or, cmp1, cmp2, cmp, "cmp");
+            if (comp_ctx->enable_shared_heap /* TODO: && mem_idx == 0 */) {
+                /* Check integer overflow has been checked above */
+                BUILD_ICMP(LLVMIntUGT, offset1, mem_check_bound, cmp, "cmp");
+            }
+            else {
+                /* Check integer overflow */
+                BUILD_ICMP(LLVMIntULT, offset1, addr, cmp1, "cmp1");
+                BUILD_ICMP(LLVMIntUGT, offset1, mem_check_bound, cmp2, "cmp2");
+                BUILD_OP(Or, cmp1, cmp2, cmp, "cmp");
+            }
         }
 
         /* Add basic blocks */
@@ -354,7 +494,19 @@ aot_check_memory_overflow(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
             goto fail;
         }
     }
-    return maddr;
+
+    if (comp_ctx->enable_shared_heap /* TODO: && mem_idx == 0 */) {
+        block_curr = LLVMGetInsertBlock(comp_ctx->builder);
+        LLVMAddIncoming(maddr_phi, &maddr, &block_curr, 1);
+        if (!LLVMBuildBr(comp_ctx->builder, block_maddr_phi)) {
+            aot_set_last_error("llvm build br failed");
+            goto fail;
+        }
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, block_maddr_phi);
+        return maddr_phi;
+    }
+    else
+        return maddr;
 fail:
     return NULL;
 }
@@ -985,10 +1137,15 @@ check_bulk_memory_overflow(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
                            LLVMValueRef offset, LLVMValueRef bytes)
 {
     LLVMValueRef maddr, max_addr, cmp;
-    LLVMValueRef mem_base_addr;
+    LLVMValueRef mem_base_addr, maddr_phi = NULL;
     LLVMBasicBlockRef block_curr = LLVMGetInsertBlock(comp_ctx->builder);
-    LLVMBasicBlockRef check_succ;
+    LLVMBasicBlockRef check_succ, block_maddr_phi = NULL;
     LLVMValueRef mem_size;
+#if WASM_ENABLE_MEMORY64 == 0
+    bool is_memory64 = false;
+#else
+    bool is_memory64 = IS_MEMORY64;
+#endif
 
     /* Get memory base address and memory data size */
 #if WASM_ENABLE_SHARED_MEMORY != 0
@@ -1053,9 +1210,96 @@ check_bulk_memory_overflow(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
     offset =
         LLVMBuildZExt(comp_ctx->builder, offset, I64_TYPE, "extend_offset");
     bytes = LLVMBuildZExt(comp_ctx->builder, bytes, I64_TYPE, "extend_len");
+    if (!offset || !bytes) {
+        aot_set_last_error("llvm build zext failed.");
+        goto fail;
+    }
 
+    /* TODO: check whether integer overflow occurs when memory is 64-bit
+             and boundary check is enabled */
     BUILD_OP(Add, offset, bytes, max_addr, "max_addr");
+
+    if (comp_ctx->enable_shared_heap /* TODO: && mem_idx == 0 */) {
+        LLVMBasicBlockRef app_addr_in_shared_heap, app_addr_in_linear_mem;
+        LLVMValueRef shared_heap_start_off, shared_heap_check_bound;
+        LLVMValueRef max_offset, cmp1, cmp2, is_in_shared_heap;
+
+        /* Add basic blocks */
+        ADD_BASIC_BLOCK(app_addr_in_shared_heap, "app_addr_in_shared_heap");
+        ADD_BASIC_BLOCK(app_addr_in_linear_mem, "app_addr_in_linear_mem");
+        ADD_BASIC_BLOCK(block_maddr_phi, "maddr_phi");
+
+        LLVMMoveBasicBlockAfter(app_addr_in_shared_heap, block_curr);
+        LLVMMoveBasicBlockAfter(app_addr_in_linear_mem,
+                                app_addr_in_shared_heap);
+        LLVMMoveBasicBlockAfter(block_maddr_phi, check_succ);
+
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, block_maddr_phi);
+        if (!(maddr_phi = LLVMBuildPhi(comp_ctx->builder, INT8_PTR_TYPE,
+                                       "maddr_phi"))) {
+            aot_set_last_error("llvm build phi failed");
+            goto fail;
+        }
+
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, block_curr);
+
+        shared_heap_start_off = func_ctx->shared_heap_start_off;
+        if (comp_ctx->pointer_size == sizeof(uint32)) {
+            if (!(shared_heap_start_off =
+                      LLVMBuildZExt(comp_ctx->builder, shared_heap_start_off,
+                                    I64_TYPE, "shared_heap_start_off_u64"))) {
+                aot_set_last_error("llvm build zext failed");
+                goto fail;
+            }
+        }
+        shared_heap_check_bound =
+            is_memory64 ? I64_CONST(UINT64_MAX) : I64_CONST(UINT32_MAX);
+        CHECK_LLVM_CONST(shared_heap_check_bound);
+
+        /* Check whether the bytes to access are in shared heap */
+        if (!comp_ctx->enable_bound_check) {
+            /* Use IntUGT but not IntUGE to compare, same as the check
+               in aot_check_memory_overflow */
+            BUILD_ICMP(LLVMIntUGT, offset, func_ctx->shared_heap_start_off,
+                       is_in_shared_heap, "is_in_shared_heap");
+        }
+        else {
+            BUILD_ICMP(LLVMIntUGT, offset, func_ctx->shared_heap_start_off,
+                       cmp1, "cmp1");
+            BUILD_OP(Add, max_addr, I64_NEG_ONE, max_offset, "max_offset");
+            BUILD_ICMP(LLVMIntULE, max_offset, shared_heap_check_bound, cmp2,
+                       "cmp2");
+            BUILD_OP(And, cmp1, cmp2, is_in_shared_heap, "is_in_shared_heap");
+        }
+
+        if (!LLVMBuildCondBr(comp_ctx->builder, is_in_shared_heap,
+                             app_addr_in_shared_heap, app_addr_in_linear_mem)) {
+            aot_set_last_error("llvm build cond br failed");
+            goto fail;
+        }
+
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, app_addr_in_shared_heap);
+
+        /* Get native address inside shared heap */
+        if (!(maddr = LLVMBuildInBoundsGEP2(comp_ctx->builder, INT8_TYPE,
+                                            func_ctx->shared_heap_base_addr_adj,
+                                            &offset, 1, "maddr_shared_heap"))) {
+            aot_set_last_error("llvm build inbounds gep failed");
+            goto fail;
+        }
+        LLVMAddIncoming(maddr_phi, &maddr, &app_addr_in_shared_heap, 1);
+
+        if (!LLVMBuildBr(comp_ctx->builder, block_maddr_phi)) {
+            aot_set_last_error("llvm build br failed");
+            goto fail;
+        }
+
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, app_addr_in_linear_mem);
+        block_curr = LLVMGetInsertBlock(comp_ctx->builder);
+    }
+
     BUILD_ICMP(LLVMIntUGT, max_addr, mem_size, cmp, "cmp_max_mem_addr");
+
     if (!aot_emit_exception(comp_ctx, func_ctx,
                             EXCE_OUT_OF_BOUNDS_MEMORY_ACCESS, true, cmp,
                             check_succ)) {
@@ -1068,11 +1312,23 @@ check_bulk_memory_overflow(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
         aot_set_last_error("llvm build add failed.");
         goto fail;
     }
-    return maddr;
+
+    if (comp_ctx->enable_shared_heap /* TODO: && mem_idx == 0 */) {
+        block_curr = LLVMGetInsertBlock(comp_ctx->builder);
+        LLVMAddIncoming(maddr_phi, &maddr, &block_curr, 1);
+        if (!LLVMBuildBr(comp_ctx->builder, block_maddr_phi)) {
+            aot_set_last_error("llvm build br failed");
+            goto fail;
+        }
+        LLVMPositionBuilderAtEnd(comp_ctx->builder, block_maddr_phi);
+        return maddr_phi;
+    }
+    else
+        return maddr;
 fail:
     return NULL;
 }
-#endif /* end of WASM_ENABLE_BULK_MEMORY != 0 or WASM_ENABLE_STRINGREF != 0 */
+#endif /* end of WASM_ENABLE_BULK_MEMORY != 0 || WASM_ENABLE_STRINGREF != 0 */
 
 #if WASM_ENABLE_BULK_MEMORY != 0
 bool

core/iwasm/compilation/aot_llvm.c

@@ -1518,6 +1518,75 @@ create_memory_info(const AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
     return true;
 }
 
+static bool
+create_shared_heap_info(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx)
+{
+    LLVMValueRef offset, base_addr_p, start_off_p, cmp;
+    uint32 offset_u32;
+
+    /* Load aot_inst->e->shared_heap_base_addr_adj */
+    offset_u32 = get_module_inst_extra_offset(comp_ctx);
+#if WASM_ENABLE_JIT != 0 && WASM_ENABLE_SHARED_HEAP != 0
+    if (comp_ctx->is_jit_mode)
+        offset_u32 +=
+            offsetof(WASMModuleInstanceExtra, shared_heap_base_addr_adj);
+    else
+#endif
+        offset_u32 +=
+            offsetof(AOTModuleInstanceExtra, shared_heap_base_addr_adj);
+    offset = I32_CONST(offset_u32);
+    CHECK_LLVM_CONST(offset);
+
+    if (!(base_addr_p = LLVMBuildInBoundsGEP2(comp_ctx->builder, INT8_TYPE,
+                                              func_ctx->aot_inst, &offset, 1,
+                                              "shared_heap_base_addr_adj_p"))) {
+        aot_set_last_error("llvm build inbounds gep failed");
+        return false;
+    }
+    if (!(func_ctx->shared_heap_base_addr_adj =
+              LLVMBuildLoad2(comp_ctx->builder, INT8_PTR_TYPE, base_addr_p,
+                             "shared_heap_base_addr_adj"))) {
+        aot_set_last_error("llvm build load failed");
+        return false;
+    }
+
+    /* Load aot_inst->e->shared_heap_start_off */
+    offset_u32 = get_module_inst_extra_offset(comp_ctx);
+#if WASM_ENABLE_JIT != 0 && WASM_ENABLE_SHARED_HEAP != 0
+    if (comp_ctx->is_jit_mode)
+        offset_u32 += offsetof(WASMModuleInstanceExtra, shared_heap_start_off);
+    else
+#endif
+        offset_u32 += offsetof(AOTModuleInstanceExtra, shared_heap_start_off);
+    offset = I32_CONST(offset_u32);
+    CHECK_LLVM_CONST(offset);
+
+    if (!(start_off_p = LLVMBuildInBoundsGEP2(comp_ctx->builder, INT8_TYPE,
+                                              func_ctx->aot_inst, &offset, 1,
+                                              "shared_heap_start_off_p"))) {
+        aot_set_last_error("llvm build inbounds gep failed");
+        return false;
+    }
+    if (!(func_ctx->shared_heap_start_off = LLVMBuildLoad2(
+              comp_ctx->builder,
+              comp_ctx->pointer_size == sizeof(uint64) ? I64_TYPE : I32_TYPE,
+              start_off_p, "shared_heap_start_off"))) {
+        aot_set_last_error("llvm build load failed");
+        return false;
+    }
+
+    if (!(cmp = LLVMBuildIsNotNull(comp_ctx->builder,
+                                   func_ctx->shared_heap_base_addr_adj,
+                                   "has_shared_heap"))) {
+        aot_set_last_error("llvm build is not null failed");
+        return false;
+    }
+
+    return true;
+fail:
+    return false;
+}
+
 static bool
 create_cur_exception(const AOTCompContext *comp_ctx, AOTFuncContext *func_ctx)
 {
@@ -1808,6 +1877,12 @@ aot_create_func_context(const AOTCompData *comp_data, AOTCompContext *comp_ctx,
         goto fail;
     }
 
+    /* Load shared heap, shared heap start off mem32 or mem64 */
+    if (comp_ctx->enable_shared_heap
+        && !create_shared_heap_info(comp_ctx, func_ctx)) {
+        goto fail;
+    }
+
     return func_ctx;
 
 fail:
@@ -2619,6 +2694,9 @@ aot_create_comp_context(const AOTCompData *comp_data, aot_comp_option_t option)
     if (option->enable_gc)
         comp_ctx->enable_gc = true;
 
+    if (option->enable_shared_heap)
+        comp_ctx->enable_shared_heap = true;
+
     comp_ctx->opt_level = option->opt_level;
     comp_ctx->size_level = option->size_level;
 

core/iwasm/compilation/aot_llvm.h

@@ -242,6 +242,9 @@ typedef struct AOTFuncContext {
     bool mem_space_unchanged;
     AOTCheckedAddrList checked_addr_list;
 
+    LLVMValueRef shared_heap_base_addr_adj;
+    LLVMValueRef shared_heap_start_off;
+
     LLVMBasicBlockRef got_exception_block;
     LLVMBasicBlockRef func_return_block;
     LLVMValueRef exception_id_phi;
@@ -467,6 +470,8 @@ typedef struct AOTCompContext {
     /* Enable GC */
     bool enable_gc;
 
+    bool enable_shared_heap;
+
     uint32 opt_level;
     uint32 size_level;
 

core/iwasm/include/aot_comp_option.h

@@ -71,6 +71,7 @@ typedef struct AOTCompOption {
     bool enable_llvm_pgo;
     bool enable_stack_estimation;
     bool quick_invoke_c_api_import;
+    bool enable_shared_heap;
     char *use_prof_file;
     uint32_t opt_level;
     uint32_t size_level;

core/iwasm/interpreter/wasm_interp_classic.c

@@ -47,8 +47,14 @@ typedef float64 CellType_F64;
 #endif
 
 #if WASM_ENABLE_SHARED_HEAP != 0
-#define app_addr_in_shared_heap(app_addr, bytes)        \
-    (shared_heap && (app_addr) >= shared_heap_start_off \
+#if WASM_ENABLE_MULTI_MEMORY != 0
+/* Only enable shared heap for the default memory */
+#define is_default_memory (memidx == 0)
+#else
+#define is_default_memory true
+#endif
+#define app_addr_in_shared_heap(app_addr, bytes)                             \
+    (shared_heap && is_default_memory && (app_addr) >= shared_heap_start_off \
      && (app_addr) <= shared_heap_end_off - bytes + 1)
 
 #define shared_heap_addr_app_to_native(app_addr, native_addr) \

core/iwasm/interpreter/wasm_loader.c

@@ -5330,6 +5330,9 @@ init_llvm_jit_functions_stage1(WASMModule *module, char *error_buf,
     option.enable_memory_profiling = true;
     option.enable_stack_estimation = true;
 #endif
+#if WASM_ENABLE_SHARED_HEAP != 0
+    option.enable_shared_heap = true;
+#endif
 
     module->comp_ctx = aot_create_comp_context(module->comp_data, &option);
     if (!module->comp_ctx) {

core/iwasm/interpreter/wasm_mini_loader.c

@@ -2158,6 +2158,9 @@ init_llvm_jit_functions_stage1(WASMModule *module, char *error_buf,
     option.enable_memory_profiling = true;
     option.enable_stack_estimation = true;
 #endif
+#if WASM_ENABLE_SHARED_HEAP != 0
+    option.enable_shared_heap = true;
+#endif
 
     module->comp_ctx = aot_create_comp_context(module->comp_data, &option);
     if (!module->comp_ctx) {

core/iwasm/interpreter/wasm_runtime.c

@@ -2791,6 +2791,14 @@ wasm_instantiate(WASMModule *module, WASMModuleInstance *parent,
         }
     }
 
+#if WASM_ENABLE_JIT != 0 && WASM_ENABLE_SHARED_HEAP != 0
+#if UINTPTR_MAX == UINT64_MAX
+    module_inst->e->shared_heap_start_off.u64 = UINT64_MAX;
+#else
+    module_inst->e->shared_heap_start_off.u32[0] = UINT32_MAX;
+#endif
+#endif
+
 #if WASM_ENABLE_GC != 0
     /* Initialize the table data with init expr */
     for (i = 0; i < module->table_count; i++) {

core/iwasm/interpreter/wasm_runtime.h

@@ -92,7 +92,6 @@ typedef union {
     uint32 u32[2];
 } MemBound;
 
-#if WASM_ENABLE_SHARED_HEAP != 0
 typedef struct WASMSharedHeap {
     struct WASMSharedHeap *next;
     void *heap_handle;
@@ -101,7 +100,6 @@ typedef struct WASMSharedHeap {
     uint64 start_off_mem64;
     uint64 start_off_mem32;
 } WASMSharedHeap;
-#endif
 
 struct WASMMemoryInstance {
     /* Module type */
@@ -366,6 +364,15 @@ typedef struct WASMModuleInstanceExtra {
 
 #if WASM_ENABLE_SHARED_HEAP != 0
     WASMSharedHeap *shared_heap;
+#if WASM_ENABLE_JIT != 0
+    /*
+     * Adjusted shared heap based addr to simple the calculation
+     * in the aot code. The value is:
+     *   shared_heap->base_addr - shared_heap->start_off
+     */
+    uint8 *shared_heap_base_addr_adj;
+    MemBound shared_heap_start_off;
+#endif
 #endif
 
 #if WASM_ENABLE_DEBUG_INTERP != 0                         \

core/iwasm/libraries/shared-heap/shared_heap_wrapper.c

@@ -20,14 +20,14 @@
 /* clang-format on */
 
 static uint32
-shared_malloc_wrapper(wasm_exec_env_t exec_env, uint32 size)
+shared_heap_malloc_wrapper(wasm_exec_env_t exec_env, uint32 size)
 {
     wasm_module_inst_t module_inst = get_module_inst(exec_env);
     return (uint32)module_shared_malloc((uint64)size, NULL);
 }
 
 static void
-shared_free_wrapper(wasm_exec_env_t exec_env, void *ptr)
+shared_heap_free_wrapper(wasm_exec_env_t exec_env, void *ptr)
 {
     wasm_module_inst_t module_inst = get_module_inst(exec_env);
 
@@ -45,8 +45,8 @@ shared_free_wrapper(wasm_exec_env_t exec_env, void *ptr)
 /* clang-format on */
 
 static NativeSymbol native_symbols_shared_heap[] = {
-    REG_NATIVE_FUNC(shared_malloc, "(i)i"),
-    REG_NATIVE_FUNC(shared_free, "(*)"),
+    REG_NATIVE_FUNC(shared_heap_malloc, "(i)i"),
+    REG_NATIVE_FUNC(shared_heap_free, "(*)"),
 };
 
 uint32

core/iwasm/libraries/thread-mgr/thread_manager.c

@@ -1428,16 +1428,6 @@ wasm_cluster_attach_shared_heap(WASMModuleInstanceCommon *module_inst,
 {
     WASMExecEnv *exec_env = wasm_clusters_search_exec_env(module_inst);
 
-    if (module_inst->module_type == Wasm_Module_Bytecode) {
-        if (((WASMModuleInstance *)module_inst)->e->shared_heap) {
-            LOG_WARNING("A shared heap is already attached");
-            return false;
-        }
-    }
-    else if (module_inst->module_type == Wasm_Module_AoT) {
-        // TODO
-    }
-
     if (exec_env == NULL) {
         /* Maybe threads have not been started yet. */
         return wasm_runtime_attach_shared_heap_internal(module_inst, heap);

doc/build_wamr.md

@@ -300,6 +300,22 @@ Currently we only profile the memory consumption of module, module_instance and
     wasm_runtime_get_context
 ```
 
+#### **Shared heap among wasm apps and host native**
+- **WAMR_BUILD_SHARED_HEAP**=1/0, default to disable if not set
+> Note: If it is enabled, allow to create one or more shared heaps, and attach one to a module instance, the belows APIs ared provided:
+```C
+   wasm_runtime_create_shared_heap
+   wasm_runtime_attach_shared_heap
+   wasm_runtime_detach_shared_heap
+   wasm_runtime_shared_heap_malloc
+   wasm_runtime_shared_heap_free
+```
+And the wasm app can calls below APIs to allocate/free memory from/to the shared heap if it is attached to the app's module instance:
+```C
+   void *shared_heap_malloc();
+   void shared_heap_free(void *ptr);
+```
+
 **Combination of configurations:**
 
 We can combine the configurations. For example, if we want to disable interpreter, enable AOT and WASI, we can run command:

samples/shared-heap/CMakeLists.txt

@@ -48,6 +48,7 @@ if (NOT CMAKE_BUILD_TYPE)
 endif ()
 
 set (WAMR_BUILD_INTERP 1)
+set (WAMR_BUILD_FAST_INTERP 1)
 set (WAMR_BUILD_AOT 1)
 set (WAMR_BUILD_JIT 0)
 set (WAMR_BUILD_LIBC_BUILTIN 1)
@@ -72,7 +73,11 @@ endif ()
 set (WAMR_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR}/../..)
 include (${WAMR_ROOT_DIR}/build-scripts/runtime_lib.cmake)
 
-add_library(vmlib ${WAMR_RUNTIME_LIB_SOURCE})
+add_library(vmlib STATIC ${WAMR_RUNTIME_LIB_SOURCE})
+if (MSVC)
+  target_compile_definitions(vmlib PRIVATE WASM_API_EXTERN=)
+endif()
+target_link_libraries(vmlib ${LLVM_AVAILABLE_LIBS} ${UV_A_LIBS} -lm -ldl -lpthread)
 
 ################  application related  ################
 include_directories(${CMAKE_CURRENT_LIST_DIR}/src)
@@ -90,3 +95,33 @@ else ()
 endif ()
 
 add_subdirectory(wasm-apps)
+
+if (WAMR_BUILD_AOT EQUAL 1)
+  set (WAMR_COMPILER_DIR ${CMAKE_CURRENT_LIST_DIR}/../../wamr-compiler/build)
+  message (CHECK_START "Detecting WAMR_COMPILER at ${WAMR_COMPILER_DIR}")
+  find_file (WAMR_COMPILER
+    wamrc
+    PATHS "${CMAKE_CURRENT_LIST_DIR}/../../wamr-compiler/build"
+    NO_DEFAULT_PATH
+    NO_CMAKE_FIND_ROOT_PATH
+  )
+  if (WAMR_COMPILER)
+    message (CHECK_PASS "found")
+  else()
+    message (CHECK_FAIL "not found")
+  endif()
+  if (NOT EXISTS ${WAMR_COMPILER})
+    message (FATAL_ERROR "Please build wamrc under ${WAMR_ROOT_DIR}/wamr-compiler")
+  else()
+    message (STATUS "WAMR_COMPILER is ${WAMR_COMPILER}")
+  endif()
+
+  add_custom_target(
+    wasm_to_aot
+    ALL
+    DEPENDS wasm-apps/test1.wasm wasm-apps/test2.wasm ${WAMR_COMPILER}
+    COMMAND ${WAMR_COMPILER} --enable-shared-heap -o wasm-apps/test1.aot wasm-apps/test1.wasm
+    COMMAND ${WAMR_COMPILER} --enable-shared-heap -o wasm-apps/test2.aot wasm-apps/test2.wasm
+    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+  )
+endif()

samples/shared-heap/src/main.c

@@ -19,15 +19,15 @@ thread1_callback(void *arg)
     wasm_module_inst_t module_inst = targ->module_inst;
     bh_queue *queue = targ->queue;
     wasm_exec_env_t exec_env;
-    wasm_function_inst_t my_shared_malloc_func;
-    wasm_function_inst_t my_shared_free_func;
+    wasm_function_inst_t my_shared_heap_malloc_func;
+    wasm_function_inst_t my_shared_heap_free_func;
     uint32 i, argv[2];
 
     /* lookup wasm functions */
-    if (!(my_shared_malloc_func =
-              wasm_runtime_lookup_function(module_inst, "my_shared_malloc"))
-        || !(my_shared_free_func =
-                 wasm_runtime_lookup_function(module_inst, "my_shared_free"))) {
+    if (!(my_shared_heap_malloc_func = wasm_runtime_lookup_function(
+              module_inst, "my_shared_heap_malloc"))
+        || !(my_shared_heap_free_func = wasm_runtime_lookup_function(
+                 module_inst, "my_shared_heap_free"))) {
         printf("Failed to lookup function.\n");
     }
 
@@ -62,17 +62,17 @@ thread1_callback(void *arg)
         }
     }
 
-    /* allocate memory by calling my_shared_malloc function and send it
+    /* allocate memory by calling my_shared_heap_malloc function and send it
        to wasm app2 */
     for (i = 5; i < 10; i++) {
         uint8 *buf;
 
         argv[0] = 1024 * (i + 1);
         argv[1] = i + 1;
-        wasm_runtime_call_wasm(exec_env, my_shared_malloc_func, 2, argv);
+        wasm_runtime_call_wasm(exec_env, my_shared_heap_malloc_func, 2, argv);
 
         if (wasm_runtime_get_exception(module_inst)) {
-            printf("Failed to call 'my_shared_malloc` function: %s\n",
+            printf("Failed to call 'my_shared_heap_malloc' function: %s\n",
                    wasm_runtime_get_exception(module_inst));
             break;
         }
@@ -118,6 +118,10 @@ queue_callback(void *message, void *arg)
     /* call wasm function */
     argv[0] = wasm_runtime_addr_native_to_app(module_inst, buf);
     wasm_runtime_call_wasm(exec_env, print_buf_func, 1, argv);
+    if (wasm_runtime_get_exception(module_inst)) {
+        printf("Failed to call 'print_buf' function: %s\n",
+               wasm_runtime_get_exception(module_inst));
+    }
 }
 
 static void *
@@ -159,8 +163,17 @@ main(int argc, char **argv)
     RuntimeInitArgs init_args;
     SharedHeapInitArgs heap_init_args;
     char error_buf[128] = { 0 };
+    bool aot_mode = false;
     int ret = -1;
 
+    if (argc > 1 && !strcmp(argv[1], "--aot"))
+        aot_mode = true;
+
+    if (!aot_mode)
+        printf("Test shared heap in interpreter mode\n\n");
+    else
+        printf("Test shared heap in AOT mode\n\n");
+
     memset(&init_args, 0, sizeof(RuntimeInitArgs));
 
     init_args.mem_alloc_type = Alloc_With_Pool;
@@ -180,7 +193,10 @@ main(int argc, char **argv)
     }
 
     /* read wasm file */
-    wasm_file1 = "./wasm-apps/test1.wasm";
+    if (!aot_mode)
+        wasm_file1 = "./wasm-apps/test1.wasm";
+    else
+        wasm_file1 = "./wasm-apps/test1.aot";
     if (!(wasm_file1_buf =
               bh_read_file_to_buffer(wasm_file1, &wasm_file1_size))) {
         printf("Open wasm file %s failed.\n", wasm_file1);
@@ -204,7 +220,10 @@ main(int argc, char **argv)
     }
 
     /* read wasm file */
-    wasm_file2 = "./wasm-apps/test2.wasm";
+    if (!aot_mode)
+        wasm_file2 = "./wasm-apps/test2.wasm";
+    else
+        wasm_file2 = "./wasm-apps/test2.aot";
     if (!(wasm_file2_buf =
               bh_read_file_to_buffer(wasm_file2, &wasm_file2_size))) {
         printf("Open wasm file %s failed.\n", wasm_file1);
@@ -273,7 +292,7 @@ main(int argc, char **argv)
 
     /* wait until all messages are post to wasm app2 and wasm app2
        handles all of them, then exit the queue message loop */
-    usleep(2000);
+    usleep(10000);
     bh_queue_exit_loop_run(queue);
 
     os_thread_join(tid1, NULL);

samples/shared-heap/wasm-apps/CMakeLists.txt

@@ -26,12 +26,12 @@ set (CMAKE_C_COMPILER "${WASI_SDK_DIR}/bin/clang")
 set (DEFINED_SYMBOLS "${WAMR_ROOT_DIR}/wamr-sdk/app/libc-builtin-sysroot/share/defined-symbols.txt")
 
 set (CMAKE_EXE_LINKER_FLAGS
-     "-Wl,--initial-memory=65536,                  \
+     "-O0 -Wl,--initial-memory=65536,              \
       -Wl,--no-entry,--strip-all,                  \
       -Wl,--export=__heap_base,--export=__data_end \
       -Wl,--export=__wasm_call_ctors               \
-      -Wl,--export=my_shared_malloc                \
-      -Wl,--export=my_shared_free                  \
+      -Wl,--export=my_shared_heap_malloc           \
+      -Wl,--export=my_shared_heap_free             \
       -Wl,--export=print_buf                       \
       -Wl,--allow-undefined"
 )

samples/shared-heap/wasm-apps/test1.c

@@ -5,26 +5,56 @@
 
 #include <stdio.h>
 #include <stdint.h>
+#include <string.h>
 
 extern void *
-shared_malloc(uint32_t size);
+shared_heap_malloc(uint32_t size);
 extern void
-shared_free(void *ptr);
+shared_heap_free(void *ptr);
 
 void *
-my_shared_malloc(uint32_t size, uint32_t index)
+my_shared_heap_malloc(uint32_t size, uint32_t index)
 {
-    char *buf = shared_malloc(size);
+    char *buf1 = NULL, *buf2 = NULL, *buf;
 
-    if (buf)
-        snprintf(buf, 1024, "Hello, this is buf %u allocated from shared heap",
-                 index);
+    buf1 = shared_heap_malloc(128);
+    if (!buf1)
+        return NULL;
 
+    buf1[0] = 'H';
+    buf1[1] = 'e';
+    buf1[2] = 'l';
+    buf1[3] = 'l';
+    buf1[4] = 'o';
+    buf1[5] = ',';
+    buf1[6] = ' ';
+
+    buf2 = shared_heap_malloc(128);
+    if (!buf2) {
+        shared_heap_free(buf1);
+        return NULL;
+    }
+
+    snprintf(buf2, 128, "this is buf %u allocated from shared heap", index);
+
+    buf = shared_heap_malloc(size);
+    if (!buf) {
+        shared_heap_free(buf1);
+        shared_heap_free(buf2);
+        return NULL;
+    }
+
+    memset(buf, 0, size);
+    memcpy(buf, buf1, strlen(buf1));
+    memcpy(buf + strlen(buf1), buf2, strlen(buf2));
+
+    shared_heap_free(buf1);
+    shared_heap_free(buf2);
     return buf;
 }
 
 void
-my_shared_free(void *ptr)
+my_shared_heap_free(void *ptr)
 {
-    shared_free(ptr);
+    shared_heap_free(ptr);
 }

samples/shared-heap/wasm-apps/test2.c

@@ -8,11 +8,11 @@
 #include <stdio.h>
 
 extern void
-shared_free(void *ptr);
+shared_heap_free(void *ptr);
 
 void
 print_buf(char *buf)
 {
     printf("wasm app2's wasm func received buf: %s\n\n", buf);
-    shared_free(buf);
+    shared_heap_free(buf);
 }

tests/unit/shared-heap/wasm-apps/test.c

@@ -6,17 +6,17 @@
 #include <stdio.h>
 
 extern void *
-shared_malloc(int size);
+shared_heap_malloc(int size);
 extern void
-shared_free(void *offset);
+shared_heap_free(void *offset);
 
 int
 test()
 {
-    int *ptr = (int *)shared_malloc(10);
+    int *ptr = (int *)shared_heap_malloc(10);
 
     *ptr = 10;
     int a = *ptr;
-    shared_free(ptr);
+    shared_heap_free(ptr);
     return a;
-}
+}

wamr-compiler/main.c

@@ -206,6 +206,7 @@ print_help()
     printf("  --enable-linux-perf       Enable linux perf support\n");
 #endif
     printf("  --mllvm=<option>          Add the LLVM command line option\n");
+    printf("  --enable-shared-heap      Enable shared heap feature\n");
     printf("  -v=n                      Set log verbose level (0 to 5, default is 2), larger with more log\n");
     printf("  --version                 Show version information\n");
     printf("Examples: wamrc -o test.aot test.wasm\n");
@@ -647,6 +648,9 @@ main(int argc, char *argv[])
                 llvm_options[llvm_options_count - 2] = "wamrc";
             llvm_options[llvm_options_count - 1] = argv[0] + 8;
         }
+        else if (!strcmp(argv[0], "--enable-shared-heap")) {
+            option.enable_shared_heap = true;
+        }
         else if (!strcmp(argv[0], "--version")) {
             uint32 major, minor, patch;
             wasm_runtime_get_version(&major, &minor, &patch);