Add Linux SGX support (#106)

core/iwasm/lib/native/libc/wasm_libc.cmake

@@ -17,7 +17,7 @@ set (WASM_LIBC_DIR ${CMAKE_CURRENT_LIST_DIR})
 include_directories(${WASM_LIBC_DIR})
 
 
-file (GLOB_RECURSE source_all ${WASM_LIBC_DIR}/*.c)
+file (GLOB_RECURSE source_all ${WASM_LIBC_DIR}/libc_wrapper.c)
 
 set (WASM_LIBC_SOURCE ${source_all})
 

core/iwasm/lib/native/libc/wasm_libc_sgx.cmake

@@ -0,0 +1,23 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set (WASM_LIBC_DIR ${CMAKE_CURRENT_LIST_DIR})
+
+include_directories(${WASM_LIBC_DIR})
+
+
+file (GLOB_RECURSE source_all ${WASM_LIBC_DIR}/libc_wrapper_sgx.c)
+
+set (WASM_LIBC_SOURCE ${source_all})
+

core/iwasm/products/linux-sgx/CMakeLists.txt

@@ -0,0 +1,89 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cmake_minimum_required (VERSION 2.8)
+
+project (iwasm)
+
+set (PLATFORM "linux-sgx")
+
+# Reset default linker flags
+set (CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")
+set (CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")
+
+add_definitions(-DUSE_SGX=1)
+add_definitions(-DOPS_INPUT_OUTPUT=1)
+add_definitions(-DOPS_UNSAFE_BUFFERS=0)
+add_definitions(-DWASM_ENABLE_LOG=0)
+
+# Enable repl mode if want to test spec cases
+# add_definitions(-DWASM_ENABLE_REPL)
+
+if (NOT ("$ENV{VALGRIND}" STREQUAL "YES"))
+  add_definitions(-DNVALGRIND)
+endif ()
+
+# Currently build as 64-bit by default.
+set (BUILD_AS_64BIT_SUPPORT "YES")
+
+if (CMAKE_SIZEOF_VOID_P EQUAL 8)
+if (${BUILD_AS_64BIT_SUPPORT} STREQUAL "YES")
+  # Add -fPIC flag if build as 64-bit
+  set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
+  set (CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "${CMAKE_SHARED_LIBRARY_LINK_C_FLAGS} -fPIC")
+else ()
+  add_definitions (-m32)
+  set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
+  set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -m32")
+endif ()
+endif ()
+
+if (NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE Release)
+endif (NOT CMAKE_BUILD_TYPE)
+message ("CMAKE_BUILD_TYPE = " ${CMAKE_BUILD_TYPE})
+
+set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections")
+set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffunction-sections -fdata-sections -Wall -Wno-unused-parameter -Wno-pedantic")
+
+set (SHARED_LIB_DIR ../../../shared-lib)
+
+include_directories (.
+                     ../../runtime/include
+                     ../../runtime/platform/include
+                     ${SHARED_LIB_DIR}/include
+                     $ENV{SGX_SDK}/include)
+
+enable_language (ASM)
+
+include (../../runtime/platform/${PLATFORM}/platform.cmake)
+include (../../runtime/utils/utils.cmake)
+include (../../runtime/vmcore-wasm/vmcore.cmake)
+include (../../lib/native/base/wasm_lib_base.cmake)
+include (../../lib/native/libc/wasm_libc_sgx.cmake)
+include (${SHARED_LIB_DIR}/platform/${PLATFORM}/shared_platform.cmake)
+include (${SHARED_LIB_DIR}/mem-alloc/mem_alloc.cmake)
+
+#add_executable (iwasm main.c ext_lib_export.c)
+
+
+add_library (vmlib
+             ext_lib_export.c
+             ${WASM_PLATFORM_LIB_SOURCE}
+             ${WASM_UTILS_LIB_SOURCE}
+             ${VMCORE_LIB_SOURCE}
+             ${WASM_LIB_BASE_DIR}/base_lib_export.c
+             ${WASM_LIBC_SOURCE}
+             ${PLATFORM_SHARED_SOURCE}
+             ${MEM_ALLOC_SHARED_SOURCE})

core/iwasm/products/linux-sgx/ext_lib_export.c

@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "lib_export.h"
+
+static NativeSymbol extended_native_symbol_defs[] = { };
+
+#include "ext_lib_export.h"

core/iwasm/runtime/platform/include/wasm_platform_log.h

@@ -17,7 +17,9 @@
 #ifndef _WASM_PLATFORM_LOG
 #define _WASM_PLATFORM_LOG
 
-#define wasm_printf printf
+#include "bh_platform.h"
+
+#define wasm_printf bh_printf
 
 #define wasm_vprintf vprintf
 

core/iwasm/runtime/platform/linux-sgx/platform.cmake

@@ -0,0 +1,25 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+add_definitions (-D__POSIX__ -D_XOPEN_SOURCE=600 -D_POSIX_C_SOURCE=199309L)
+
+set (PLATFORM_LIB_DIR ${CMAKE_CURRENT_LIST_DIR})
+
+include_directories(${PLATFORM_LIB_DIR})
+include_directories(${PLATFORM_LIB_DIR}/../include)
+
+file (GLOB_RECURSE source_all ${PLATFORM_LIB_DIR}/*.c)
+
+set (WASM_PLATFORM_LIB_SOURCE ${source_all})
+

core/iwasm/runtime/platform/linux-sgx/wasm_native.c

@@ -0,0 +1,332 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE /* for O_DIRECT */
+#endif
+
+#include "wasm_native.h"
+#include "wasm_runtime.h"
+#include "wasm_log.h"
+#include "wasm_memory.h"
+#include "wasm_platform_log.h"
+
+#include <sys/ioctl.h>
+#include <sys/uio.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <fcntl.h>
+#include <errno.h>
+
+
+#define get_module_inst() \
+    wasm_runtime_get_current_module_inst()
+
+#define validate_app_addr(offset, size) \
+    wasm_runtime_validate_app_addr(module_inst, offset, size)
+
+#define addr_app_to_native(offset) \
+    wasm_runtime_addr_app_to_native(module_inst, offset)
+
+#define addr_native_to_app(ptr) \
+    wasm_runtime_addr_native_to_app(module_inst, ptr)
+
+#define module_malloc(size) \
+    wasm_runtime_module_malloc(module_inst, size)
+
+#define module_free(offset) \
+    wasm_runtime_module_free(module_inst, offset)
+
+
+static int32
+__syscall0_wrapper(int32 arg0)
+{
+    switch (arg0) {
+        case 199: /* getuid */
+            /* TODO */
+        default:
+            bh_printf("##_syscall0 called, syscall id: %d\n", arg0);
+    }
+    return 0;
+}
+
+static int32
+__syscall1_wrapper(int32 arg0, int32 arg1)
+{
+    switch (arg0) {
+        case 6: /* close */
+            /* TODO */
+        default:
+            bh_printf("##_syscall1 called, syscall id: %d\n", arg0);
+    }
+    return 0;
+}
+
+static int32
+__syscall2_wrapper(int32 arg0, int32 arg1, int32 arg2)
+{
+    switch (arg0) {
+        case 183: /* getcwd */
+            /* TODO */
+        default:
+            bh_printf("##_syscall2 called, syscall id: %d\n", arg0);
+    }
+    return 0;
+}
+
+static int32
+__syscall3_wrapper(int32 arg0, int32 arg1, int32 arg2, int32 arg3)
+{
+    WASMModuleInstance *module_inst = get_module_inst();
+
+    switch (arg0) {
+        case 146: /* writev */
+        {
+            /* Implement syscall 54 and syscall 146 to support printf()
+               for non SIDE_MODULE=1 mode */
+            struct iovec_app {
+                int32 iov_base_offset;
+                uint32 iov_len;
+            } *vec;
+            int32 vec_offset = arg2, str_offset;
+            uint32 iov_count = arg3, i;
+            int32 count = 0;
+            char *iov_base, *str;
+
+            if (!validate_app_addr(vec_offset, sizeof(struct iovec_app)))
+                return 0;
+
+            vec = (struct iovec_app *)addr_app_to_native(vec_offset);
+            for (i = 0; i < iov_count; i++, vec++) {
+                if (vec->iov_len > 0) {
+                    if (!validate_app_addr(vec->iov_base_offset, 1))
+                        return 0;
+                    iov_base = (char*)addr_app_to_native(vec->iov_base_offset);
+
+                    if (!(str_offset = module_malloc(vec->iov_len + 1)))
+                        return 0;
+
+                    str = addr_app_to_native(str_offset);
+
+                    memcpy(str, iov_base, vec->iov_len);
+                    str[vec->iov_len] = '\0';
+                    count += wasm_printf("%s", str);
+
+                    module_free(str_offset);
+                }
+            }
+            return count;
+        }
+        case 145: /* readv */
+        case 3: /* read*/
+        case 5: /* open */
+        case 221: /* fcntl */
+        /* TODO */
+        default:
+            bh_printf("##_syscall3 called, syscall id: %d\n", arg0);
+    }
+    return 0;
+}
+
+static int32
+__syscall4_wrapper(int32 arg0, int32 arg1, int32 arg2,
+                   int32 arg3, int32 arg4)
+{
+    bh_printf("##_syscall4 called, syscall id: %d\n", arg0);
+    return 0;
+}
+
+static int32
+__syscall5_wrapper(int32 arg0, int32 arg1, int32 arg2,
+                   int32 arg3, int32 arg4, int32 arg5)
+{
+    switch (arg0) {
+        case 140: /* llseek */
+            /* TODO */
+        default:
+            bh_printf("##_syscall5 called, args[0]: %d\n", arg0);
+    }
+    return 0;
+}
+
+#define GET_EMCC_SYSCALL_ARGS()                                     \
+  WASMModuleInstance *module_inst = get_module_inst();              \
+  int32 *args;                                                      \
+  if (!validate_app_addr(args_off, 1))                              \
+    return 0;                                                       \
+  args = addr_app_to_native(args_off)                               \
+
+#define EMCC_SYSCALL_WRAPPER0(id)                                   \
+  static int32 ___syscall##id##_wrapper(int32 _id) {                \
+    return __syscall0_wrapper(id);                                  \
+  }
+
+#define EMCC_SYSCALL_WRAPPER1(id)                                   \
+  static int32 ___syscall##id##_wrapper(int32 _id, int32 args_off) {\
+    GET_EMCC_SYSCALL_ARGS();                                        \
+    return __syscall1_wrapper(id, args[0]);                         \
+  }
+
+#define EMCC_SYSCALL_WRAPPER2(id)                                   \
+  static int32 ___syscall##id##_wrapper(int32 _id, int32 args_off) {\
+    GET_EMCC_SYSCALL_ARGS();                                        \
+    return __syscall2_wrapper(id, args[0], args[1]);                \
+  }
+
+#define EMCC_SYSCALL_WRAPPER3(id)                                   \
+  static int32 ___syscall##id##_wrapper(int32 _id, int32 args_off) {\
+    GET_EMCC_SYSCALL_ARGS();                                        \
+    return __syscall3_wrapper(id, args[0], args[1], args[2]);       \
+  }
+
+#define EMCC_SYSCALL_WRAPPER4(id)                                   \
+  static int32 ___syscall##id##_wrapper(int32 _id, int32 args_off) {\
+    GET_EMCC_SYSCALL_ARGS();                                        \
+    return __syscall4_wrapper(id, args[0], args[1], args[2], args[3]);\
+  }
+
+#define EMCC_SYSCALL_WRAPPER5(id)                                   \
+  static int32 ___syscall##id##_wrapper(int32 _id, int32 args_off) {\
+    GET_EMCC_SYSCALL_ARGS();                                        \
+    return __syscall5_wrapper(id, args[0], args[1], args[2],        \
+                              args[3], args[4]);                    \
+  }
+
+EMCC_SYSCALL_WRAPPER0(199)
+
+EMCC_SYSCALL_WRAPPER1(6)
+
+EMCC_SYSCALL_WRAPPER2(183)
+
+EMCC_SYSCALL_WRAPPER3(3)
+EMCC_SYSCALL_WRAPPER3(5)
+EMCC_SYSCALL_WRAPPER3(54)
+EMCC_SYSCALL_WRAPPER3(145)
+EMCC_SYSCALL_WRAPPER3(146)
+EMCC_SYSCALL_WRAPPER3(221)
+
+EMCC_SYSCALL_WRAPPER5(140)
+
+static int32
+getTotalMemory_wrapper()
+{
+    WASMModuleInstance *module_inst = wasm_runtime_get_current_module_inst();
+    WASMMemoryInstance *memory = module_inst->default_memory;
+    return NumBytesPerPage * memory->cur_page_count;
+}
+
+static int32
+enlargeMemory_wrapper()
+{
+    bool ret;
+    WASMModuleInstance *module_inst = wasm_runtime_get_current_module_inst();
+    WASMMemoryInstance *memory = module_inst->default_memory;
+    uint32 DYNAMICTOP_PTR_offset = module_inst->DYNAMICTOP_PTR_offset;
+    uint32 addr_data_offset = *(uint32*)(memory->global_data + DYNAMICTOP_PTR_offset);
+    uint32 *DYNAMICTOP_PTR = (uint32*)(memory->memory_data + addr_data_offset);
+    uint32 memory_size_expected = *DYNAMICTOP_PTR;
+    uint32 total_page_count = (memory_size_expected + NumBytesPerPage - 1) / NumBytesPerPage;
+
+    if (total_page_count < memory->cur_page_count) {
+        return 1;
+    }
+    else {
+        ret = wasm_runtime_enlarge_memory(module_inst, total_page_count -
+                                          memory->cur_page_count);
+        return ret ? 1 : 0;
+    }
+}
+
+static void
+_abort_wrapper(int32 code)
+{
+    WASMModuleInstance *module_inst = wasm_runtime_get_current_module_inst();
+    char buf[32];
+
+    snprintf(buf, sizeof(buf), "env.abort(%i)", code);
+    wasm_runtime_set_exception(module_inst, buf);
+}
+
+static void
+abortOnCannotGrowMemory_wrapper()
+{
+    WASMModuleInstance *module_inst = wasm_runtime_get_current_module_inst();
+    wasm_runtime_set_exception(module_inst, "abort on cannot grow memory");
+}
+
+static void
+___setErrNo_wrapper(int32 error_no)
+{
+    errno = error_no;
+}
+
+/* TODO: add function parameter/result types check */
+#define REG_NATIVE_FUNC(module_name, func_name) \
+    {#module_name, #func_name, func_name##_wrapper}
+
+typedef struct WASMNativeFuncDef {
+    const char *module_name;
+    const char *func_name;
+    void *func_ptr;
+} WASMNativeFuncDef;
+
+static WASMNativeFuncDef native_func_defs[] = {
+    REG_NATIVE_FUNC(env, __syscall0),
+    REG_NATIVE_FUNC(env, __syscall1),
+    REG_NATIVE_FUNC(env, __syscall2),
+    REG_NATIVE_FUNC(env, __syscall3),
+    REG_NATIVE_FUNC(env, __syscall4),
+    REG_NATIVE_FUNC(env, __syscall5),
+    REG_NATIVE_FUNC(env, ___syscall3),
+    REG_NATIVE_FUNC(env, ___syscall5),
+    REG_NATIVE_FUNC(env, ___syscall6),
+    REG_NATIVE_FUNC(env, ___syscall54),
+    REG_NATIVE_FUNC(env, ___syscall140),
+    REG_NATIVE_FUNC(env, ___syscall145),
+    REG_NATIVE_FUNC(env, ___syscall146),
+    REG_NATIVE_FUNC(env, ___syscall183),
+    REG_NATIVE_FUNC(env, ___syscall199),
+    REG_NATIVE_FUNC(env, ___syscall221),
+    REG_NATIVE_FUNC(env, _abort),
+    REG_NATIVE_FUNC(env, abortOnCannotGrowMemory),
+    REG_NATIVE_FUNC(env, enlargeMemory),
+    REG_NATIVE_FUNC(env, getTotalMemory),
+    REG_NATIVE_FUNC(env, ___setErrNo),
+};
+
+void*
+wasm_platform_native_func_lookup(const char *module_name,
+                                 const char *func_name)
+{
+    uint32 size = sizeof(native_func_defs) / sizeof(WASMNativeFuncDef);
+    WASMNativeFuncDef *func_def = native_func_defs;
+    WASMNativeFuncDef *func_def_end = func_def + size;
+
+    if (!module_name || !func_name)
+        return NULL;
+
+    while (func_def < func_def_end) {
+        if (!strcmp(func_def->module_name, module_name)
+            && !strcmp(func_def->func_name, func_name))
+            return (void*)(uintptr_t)func_def->func_ptr;
+        func_def++;
+    }
+
+    return NULL;
+}

core/shared-lib/include/bh_common.h

@@ -23,6 +23,9 @@
 #include "bh_log.h"
 #include "bh_list.h"
 
+typedef void (*bh_print_function_t)(const char* message);
+void bh_set_print_function(bh_print_function_t pf);
+
 #define bh_memcpy_s(dest, dlen, src, slen) do {                         \
     int _ret = slen == 0 ? 0 : b_memcpy_s (dest, dlen, src, slen);      \
     (void)_ret;                                                         \

core/shared-lib/include/config.h

@@ -26,7 +26,9 @@
 #define DEFAULT_MEM_ALLOCATOR MEM_ALLOCATOR_EMS
 
 /* Beihai log system */
+#ifndef BEIHAI_ENABLE_LOG
 #define BEIHAI_ENABLE_LOG 1
+#endif
 
 /* Beihai debugger support */
 #define BEIHAI_ENABLE_TOOL_AGENT 1
@@ -43,7 +45,9 @@
 #endif
 
 /* WASM VM log system */
+#ifndef WASM_ENABLE_LOG
 #define WASM_ENABLE_LOG 1
+#endif
 
 /* WASM Interpreter labels-as-values feature */
 #define WASM_ENABLE_LABELS_AS_VALUES 1

core/shared-lib/mem-alloc/bh_memory.c

@@ -15,9 +15,9 @@
  */
 
 #include "bh_config.h"
+#include "bh_platform.h"
 #include "bh_memory.h"
 #include "mem_alloc.h"
-#include <stdio.h>
 #include <stdlib.h>
 
 #if BEIHAI_ENABLE_MEMORY_PROFILING != 0
@@ -76,7 +76,7 @@ int bh_memory_init_with_pool(void *mem, unsigned int bytes)
         global_pool_size = bytes;
         return 0;
     }
-    printf("Init memory with pool (%p, %u) failed.\n", mem, bytes);
+    bh_printf("Init memory with pool (%p, %u) failed.\n", mem, bytes);
     return -1;
 }
 
@@ -91,7 +91,7 @@ int bh_memory_init_with_allocator(void *_malloc_func, void *_free_func)
 #endif
         return 0;
     }
-    printf("Init memory with allocator (%p, %p) failed.\n", _malloc_func,
+    bh_printf("Init memory with allocator (%p, %p) failed.\n", _malloc_func,
             _free_func);
     return -1;
 }
@@ -117,7 +117,7 @@ int bh_memory_pool_size()
 void* bh_malloc_internal(unsigned int size)
 {
     if (memory_mode == MEMORY_MODE_UNKNOWN) {
-        printf("bh_malloc failed: memory hasn't been initialize.\n");
+        bh_printf("bh_malloc failed: memory hasn't been initialize.\n");
         return NULL;
     } else if (memory_mode == MEMORY_MODE_POOL) {
         return mem_allocator_malloc(pool_allocator, size);
@@ -129,7 +129,7 @@ void* bh_malloc_internal(unsigned int size)
 void bh_free_internal(void *ptr)
 {
     if (memory_mode == MEMORY_MODE_UNKNOWN) {
-        printf("bh_free failed: memory hasn't been initialize.\n");
+        bh_printf("bh_free failed: memory hasn't been initialize.\n");
     } else if (memory_mode == MEMORY_MODE_POOL) {
         mem_allocator_free(pool_allocator, ptr);
     } else {
@@ -250,7 +250,7 @@ void memory_usage_summarize()
 
     profile = memory_profiles_list;
     while (profile) {
-        printf("malloc:%d:malloc_num:%d:free:%d:free_num:%d:%s\n",
+        bh_printf("malloc:%d:malloc_num:%d:free:%d:free_num:%d:%s\n",
             profile->total_malloc,
             profile->malloc_num,
             profile->total_free,
@@ -267,7 +267,7 @@ void memory_profile_print(const char *file,
                           const char *func,
                           int alloc)
 {
-    printf("location:%s@%d:used:%d:contribution:%d\n",
+    bh_printf("location:%s@%d:used:%d:contribution:%d\n",
            func, line, memory_in_use, alloc);
 }
 
@@ -328,4 +328,3 @@ void bh_free_profile(const char *file, int line, const char *func, void *ptr)
 }
 #endif /* end of BEIHAI_ENABLE_MEMORY_PROFILING */
 #endif /* end of MALLOC_MEMORY_FROM_SYSTEM*/
-

core/shared-lib/mem-alloc/ems/ems_alloc.c

@@ -118,7 +118,7 @@ static void unlink_hmu(gc_heap_t *heap, hmu_t *hmu)
         }
 
         if (!node) {
-            printf("[GC_ERROR]couldn't find the node in the normal list");
+            bh_printf("[GC_ERROR]couldn't find the node in the normal list");
         }
     } else {
         remove_tree_node((hmu_tree_node_t *) hmu);
@@ -392,7 +392,7 @@ gc_object_t _gc_alloc_vo_i_heap(void *vheap,
     ret = hmu_to_obj(hmu);
 
 #if BH_ENABLE_MEMORY_PROFILING != 0
-    printf("HEAP.ALLOC: heap: %p, size: %u", heap, size);
+    bh_printf("HEAP.ALLOC: heap: %p, size: %u", heap, size);
 #endif
 
     FINISH:
@@ -434,7 +434,7 @@ gc_object_t _gc_alloc_jo_i_heap(void *vheap,
     ret = hmu_to_obj(hmu);
 
 #if BH_ENABLE_MEMORY_PROFILING != 0
-    printf("HEAP.ALLOC: heap: %p, size: %u", heap, size);
+    bh_printf("HEAP.ALLOC: heap: %p, size: %u", heap, size);
 #endif
 
     FINISH:
@@ -495,7 +495,7 @@ int gc_free_i_heap(void *vheap, gc_object_t obj ALLOC_EXTRA_PARAMETERS)
             heap->total_free_size += size;
 #endif
 #if BH_ENABLE_MEMORY_PROFILING != 0
-            printf("HEAP.FREE, heap: %p, size: %u\n",heap, size);
+            bh_printf("HEAP.FREE, heap: %p, size: %u\n",heap, size);
 #endif
 
             if (!hmu_get_pinuse(hmu)) {
@@ -538,12 +538,12 @@ int gc_free_i_heap(void *vheap, gc_object_t obj ALLOC_EXTRA_PARAMETERS)
 
 void gc_dump_heap_stats(gc_heap_t *heap)
 {
-    printf("heap: %p, heap start: %p\n", heap, heap->base_addr);
-    printf(
+    bh_printf("heap: %p, heap start: %p\n", heap, heap->base_addr);
+    bh_printf(
             "total malloc: totalfree: %u, current: %u, highmark: %u, gc cnt: %u\n",
             heap->total_free_size, heap->current_size, heap->highmark_size,
             heap->total_gc_count);
-    printf("g_total_malloc=%lu, g_total_free=%lu, occupied=%lu\n",
+    bh_printf("g_total_malloc=%lu, g_total_free=%lu, occupied=%lu\n",
             g_total_malloc, g_total_free, g_total_malloc - g_total_free);
 }
 

core/shared-lib/mem-alloc/ems/ems_gc_internal.h

@@ -21,6 +21,7 @@
 extern "C" {
 #endif
 
+#include "bh_platform.h"
 #include "bh_thread.h"
 #include "bh_memory.h"
 #include "bh_assert.h"
@@ -279,4 +280,3 @@ extern int (*gct_vm_gc_finished)(void);
 #endif
 
 #endif
-

core/shared-lib/mem-alloc/ems/ems_kfc.c

@@ -30,7 +30,7 @@ int gci_check_platform()
 {
 #define CHECK(x, y)  do {                                       \
   if((x) != (y)) {                                              \
-    printf("Platform checking failed on LINE %d at FILE %s.",   \
+    bh_printf("Platform checking failed on LINE %d at FILE %s.",   \
            __LINE__, __FILE__);                                 \
     return GC_ERROR;                                            \
   }                                                             \
@@ -62,12 +62,12 @@ gc_handle_t gc_init_with_pool(char *buf, gc_size_t buf_size)
 
     /* check system compatibility*/
     if (gci_check_platform() == GC_ERROR) {
-        printf("Check platform compatibility failed");
+        bh_printf("Check platform compatibility failed");
         return NULL;
     }
 
     if (buf_size < 1024) {
-        printf("[GC_ERROR]heap_init_size(%d) < 1024", buf_size);
+        bh_printf("[GC_ERROR]heap_init_size(%d) < 1024", buf_size);
         return NULL;
     }
 
@@ -79,12 +79,12 @@ gc_handle_t gc_init_with_pool(char *buf, gc_size_t buf_size)
 
     ret = gct_vm_mutex_init(&heap->lock);
     if (ret != BHT_OK) {
-        printf("[GC_ERROR]failed to init lock ");
+        bh_printf("[GC_ERROR]failed to init lock ");
         return NULL;
     }
 
 #ifdef BH_FOOTPRINT
-    printf("\nINIT HEAP 0x%08x %d\n", base_addr, heap_max_size);
+    bh_printf("\nINIT HEAP 0x%08x %d\n", base_addr, heap_max_size);
 #endif
 
     /* init all data structures*/
@@ -131,7 +131,7 @@ gc_handle_t gc_init_with_pool(char *buf, gc_size_t buf_size)
                     && HMU_FC_NORMAL_MAX_SIZE < q->size); /*@NOTIFY*/
 
 #if BH_ENABLE_MEMORY_PROFILING != 0
-    printf("heap is successfully initialized with max_size=%u.",
+    bh_printf("heap is successfully initialized with max_size=%u.",
             heap_max_size);
 #endif
     return heap;

core/shared-lib/platform/alios/bh_platform.h

@@ -52,6 +52,8 @@ typedef int64_t int64;
 #define wa_free bh_free
 #define wa_strdup bh_strdup
 
+#define bh_printf printf
+
 typedef aos_task_t korp_thread;
 typedef korp_thread *korp_tid;
 typedef aos_task_t *aos_tid_t;

core/shared-lib/platform/linux-sgx/bh_assert.c

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "bh_platform.h"
+#include "bh_assert.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef BH_TEST
+#include <setjmp.h>
+#endif
+
+#ifdef BH_TEST
+/* for exception throwing */
+jmp_buf bh_test_jb;
+#endif
+
+void bh_assert_internal(int v, const char *file_name, int line_number,
+        const char *expr_string)
+{
+    if (v)
+        return;
+
+    if (!file_name)
+        file_name = "NULL FILENAME";
+    if (!expr_string)
+        expr_string = "NULL EXPR_STRING";
+
+    printf("\nASSERTION FAILED: %s, at FILE=%s, LINE=%d\n", expr_string,
+            file_name, line_number);
+
+#ifdef BH_TEST
+    longjmp(bh_test_jb, 1);
+#endif
+
+    abort();
+}
+
+void bh_debug_internal(const char *file_name, int line_number, const char *fmt,
+        ...)
+{
+#ifndef JEFF_TEST_VERIFIER
+    va_list args;
+
+    va_start(args, fmt);
+    bh_assert(file_name);
+
+    printf("\nDebug info FILE=%s, LINE=%d: ", file_name, line_number);
+    vprintf(fmt, args);
+
+    va_end(args);
+    printf("\n");
+#endif
+}
+

core/shared-lib/platform/linux-sgx/bh_definition.c

@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "bh_definition.h"
+#include "bh_platform.h"
+
+int bh_return(int ret)
+{
+    return ret;
+}
+
+#define RSIZE_MAX 0x7FFFFFFF
+int b_memcpy_s(void * s1, unsigned int s1max, const void * s2, unsigned int n)
+{
+    char *dest = (char*) s1;
+    char *src = (char*) s2;
+    if (n == 0) {
+        return 0;
+    }
+
+    if (s1 == NULL || s1max > RSIZE_MAX) {
+        return -1;
+    }
+    if (s2 == NULL || n > s1max) {
+        memset(dest, 0, s1max);
+        return -1;
+    }
+    memcpy(dest, src, n);
+    return 0;
+}
+
+int b_strcat_s(char * s1, size_t s1max, const char * s2)
+{
+    if (NULL
+            == s1|| NULL == s2 || s1max < (strlen(s1) + strlen(s2) + 1) || s1max > RSIZE_MAX) {
+        return -1;
+    }
+
+    strcat(s1, s2);
+
+    return 0;
+}
+
+int b_strcpy_s(char * s1, size_t s1max, const char * s2)
+{
+    if (NULL
+            == s1|| NULL == s2 || s1max < (strlen(s2) + 1) || s1max > RSIZE_MAX) {
+        return -1;
+    }
+
+    strncpy(s1, s2, s1max);
+
+    return 0;
+}
+
+int fopen_s(FILE ** pFile, const char *filename, const char *mode)
+{
+    if (NULL == pFile || NULL == filename || NULL == mode) {
+        return -1;
+    }
+
+    *pFile = fopen(filename, mode);
+
+    if (NULL == *pFile)
+        return -1;
+
+    return 0;
+}

core/shared-lib/platform/linux-sgx/bh_platform.c

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "bh_common.h"
+#include "bh_platform.h"
+
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#define FIXED_BUFFER_SIZE (1<<14)
+static bh_print_function_t print_function = NULL;
+
+char *bh_strdup(const char *s)
+{
+    char *s1 = NULL;
+    if (s && (s1 = bh_malloc(strlen(s) + 1)))
+        memcpy(s1, s, strlen(s) + 1);
+    return s1;
+}
+
+int bh_platform_init()
+{
+    return 0;
+}
+
+int putchar(int c)
+{
+    return 0;
+}
+
+int puts(const char *s)
+{
+    return 0;
+}
+
+void bh_set_print_function(bh_print_function_t pf)
+{
+    print_function = pf;
+}
+
+int bh_printf(const char *message, ...)
+{
+    if (print_function != NULL) {
+        char msg[FIXED_BUFFER_SIZE] = { '\0' };
+        va_list ap;
+        va_start(ap, message);
+        vsnprintf(msg, FIXED_BUFFER_SIZE, message, ap);
+        va_end(ap);
+        print_function(msg);
+    }
+
+    return 0;
+}

core/shared-lib/platform/linux-sgx/bh_platform.h

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _BH_PLATFORM_H
+#define _BH_PLATFORM_H
+
+#include "bh_config.h"
+#include "bh_types.h"
+#include "bh_memory.h"
+#include <inttypes.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <time.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <pthread.h>
+#include <limits.h>
+#include <errno.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int bh_printf(const char *message, ...);
+
+typedef uint64_t uint64;
+typedef int64_t int64;
+
+#define DIE do{bh_debug("Die here\n\n\n\n\n\n\n\n\n\n\n\n\n\n"); DEBUGME(void); while(1);}while(0)
+
+#define BH_PLATFORM "Linux-SGX"
+
+/* NEED qsort */
+
+#define _STACK_SIZE_ADJUSTMENT (32 * 1024)
+
+/* Stack size of applet threads's native part.  */
+#define BH_APPLET_PRESERVED_STACK_SIZE      (8 * 1024 + _STACK_SIZE_ADJUSTMENT)
+
+/* Default thread priority */
+#define BH_THREAD_DEFAULT_PRIORITY 0
+
+#define BH_ROUTINE_MODIFIER
+
+#define BHT_TIMEDOUT ETIMEDOUT
+
+#define INVALID_THREAD_ID 0xFFffFFff
+
+typedef int korp_tid;
+typedef int korp_mutex;
+typedef int korp_sem;
+typedef int korp_cond;
+typedef int korp_thread;
+typedef void* (*thread_start_routine_t)(void*);
+
+#define wa_malloc bh_malloc
+#define wa_free bh_free
+#define wa_strdup bh_strdup
+
+int snprintf(char *buffer, size_t count, const char *format, ...);
+double fmod(double x, double y);
+float fmodf(float x, float y);
+double sqrt(double x);
+
+#define BH_WAIT_FOREVER 0xFFFFFFFF
+
+#ifndef NULL
+#  define NULL ((void*) 0)
+#endif
+
+/**
+ * Return the offset of the given field in the given type.
+ *
+ * @param Type the type containing the filed
+ * @param field the field in the type
+ *
+ * @return the offset of field in Type
+ */
+#ifndef offsetof
+#define offsetof(Type, field) ((size_t)(&((Type *)0)->field))
+#endif
+
+#define bh_assert assert
+
+int b_memcpy_s(void * s1, unsigned int s1max, const void * s2,
+               unsigned int n);
+int b_strcat_s(char * s1, size_t s1max, const char * s2);
+int b_strcpy_s(char * s1, size_t s1max, const char * s2);
+
+char *bh_strdup(const char *s);
+
+int bh_platform_init();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

core/shared-lib/platform/linux-sgx/bh_platform_log.c

@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "bh_platform.h"
+#include <stdio.h>
+
+void bh_log_emit(const char *fmt, va_list ap)
+{
+    vprintf(fmt, ap);
+    fflush(stdout);
+}
+
+int bh_fprintf(FILE *stream, const char *fmt, ...)
+{
+    va_list ap;
+    int ret;
+
+    va_start(ap, fmt);
+    ret = vfprintf(stream ? stream : stdout, fmt, ap);
+    va_end(ap);
+
+    return ret;
+}
+
+int bh_fflush(void *stream)
+{
+    return fflush(stream ? stream : stdout);
+}

core/shared-lib/platform/linux-sgx/bh_thread.c

@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "bh_thread.h"
+#include "bh_assert.h"
+#include "bh_memory.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+
+int _vm_thread_sys_init()
+{
+    return 0;
+}
+
+void vm_thread_sys_destroy(void)
+{
+}
+
+int _vm_thread_create_with_prio(korp_tid *tid, thread_start_routine_t start,
+        void *arg, unsigned int stack_size, int prio)
+{
+    return BHT_ERROR;
+    // return BHT_OK;
+}
+
+int _vm_thread_create(korp_tid *tid, thread_start_routine_t start, void *arg,
+        unsigned int stack_size)
+{
+    return _vm_thread_create_with_prio(tid, start, arg, stack_size,
+                                       BH_THREAD_DEFAULT_PRIORITY);
+}
+
+korp_tid _vm_self_thread()
+{
+    return 0;
+}
+
+void vm_thread_exit(void * code)
+{
+}
+
+// storage for one thread
+static void *_tls_store = NULL;
+
+void *_vm_tls_get(unsigned idx)
+{
+    return _tls_store;
+}
+
+int _vm_tls_put(unsigned idx, void * tls)
+{
+    _tls_store = tls;
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_mutex_init(korp_mutex *mutex)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_recursive_mutex_init(korp_mutex *mutex)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_mutex_destroy(korp_mutex *mutex)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+/* Returned error (EINVAL, EAGAIN and EDEADLK) from
+ locking the mutex indicates some logic error present in
+ the program somewhere.
+ Don't try to recover error for an existing unknown error.*/
+void vm_mutex_lock(korp_mutex *mutex)
+{
+}
+
+int vm_mutex_trylock(korp_mutex *mutex)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+/* Returned error (EINVAL, EAGAIN and EPERM) from
+ unlocking the mutex indicates some logic error present
+ in the program somewhere.
+ Don't try to recover error for an existing unknown error.*/
+void vm_mutex_unlock(korp_mutex *mutex)
+{
+}
+
+int _vm_sem_init(korp_sem* sem, unsigned int c)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_sem_destroy(korp_sem *sem)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_sem_wait(korp_sem *sem)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_sem_reltimedwait(korp_sem *sem, int mills)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_sem_post(korp_sem *sem)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_cond_init(korp_cond *cond)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_cond_destroy(korp_cond *cond)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_cond_wait(korp_cond *cond, korp_mutex *mutex)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_cond_reltimedwait(korp_cond *cond, korp_mutex *mutex, int mills)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_cond_signal(korp_cond *cond)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_cond_broadcast(korp_cond *cond)
+{
+    return BHT_OK;
+    //return BHT_ERROR;
+}
+
+int _vm_thread_cancel(korp_tid thread)
+{
+    return 0;
+}
+
+int _vm_thread_join(korp_tid thread, void **value_ptr, int mills)
+{
+    return 0;
+}
+
+int _vm_thread_detach(korp_tid thread)
+{
+    return 0;
+}

core/shared-lib/platform/linux-sgx/bh_time.c

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "bh_time.h"
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/timeb.h>
+#include <time.h>
+
+/*
+ * This function returns milliseconds per tick.
+ * @return milliseconds per tick.
+ */
+uint64 _bh_time_get_tick_millisecond()
+{
+    return sysconf(_SC_CLK_TCK);
+}
+
+/*
+ * This function returns milliseconds after boot.
+ * @return milliseconds after boot.
+ */
+uint64 _bh_time_get_boot_millisecond()
+{
+    struct timespec ts;
+    if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0) {
+        return 0;
+    }
+
+    return ((uint64) ts.tv_sec) * 1000 + ts.tv_nsec / (1000 * 1000);
+}
+
+uint32 bh_get_tick_sec()
+{
+    return _bh_time_get_boot_millisecond() / 1000;
+}
+
+/*
+ * This function returns GMT time milliseconds since from 1970.1.1, AKA UNIX time.
+ * @return milliseconds since from 1970.1.1.
+ */
+uint64 _bh_time_get_millisecond_from_1970()
+{
+    struct timeb tp;
+    ftime(&tp);
+
+    return ((uint64) tp.time) * 1000 + tp.millitm
+            - (tp.dstflag == 0 ? 0 : 60 * 60 * 1000) + tp.timezone * 60 * 1000;
+}
+
+size_t _bh_time_strftime(char *s, size_t max, const char *format, int64 time)
+{
+    time_t time_sec = time / 1000;
+    struct timeb tp;
+    struct tm *ltp;
+
+    ftime(&tp);
+    time_sec -= tp.timezone * 60;
+
+    ltp = localtime(&time_sec);
+    if (ltp == NULL) {
+        return 0;
+    }
+    return strftime(s, max, format, ltp);
+}
+

core/shared-lib/platform/linux-sgx/shared_platform.cmake

@@ -0,0 +1,24 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set (PLATFORM_SHARED_DIR ${CMAKE_CURRENT_LIST_DIR})
+
+include_directories(${PLATFORM_SHARED_DIR})
+include_directories(${PLATFORM_SHARED_DIR}/../include)
+
+
+file (GLOB_RECURSE source_all ${PLATFORM_SHARED_DIR}/*.c)
+
+set (PLATFORM_SHARED_SOURCE ${source_all})
+

core/shared-lib/platform/linux/bh_platform.h

@@ -77,6 +77,8 @@ typedef void* (*thread_start_routine_t)(void*);
 #define wa_free bh_free
 #define wa_strdup bh_strdup
 
+#define bh_printf printf
+
 int snprintf(char *buffer, size_t count, const char *format, ...);
 double fmod(double x, double y);
 float fmodf(float x, float y);

core/shared-lib/platform/vxworks/bh_platform.h

@@ -75,6 +75,8 @@ typedef void* (*thread_start_routine_t)(void*);
 #define wa_free bh_free
 #define wa_strdup bh_strdup
 
+#define bh_printf printf
+
 int snprintf(char *buffer, size_t count, const char *format, ...);
 double fmod(double x, double y);
 float fmodf(float x, float y);

core/shared-lib/platform/zephyr/bh_platform.h

@@ -78,6 +78,8 @@ typedef void* (*thread_start_routine_t)(void*);
 #define wa_malloc bh_malloc
 #define wa_free bh_free
 
+#define bh_printf printf
+
 /* Unit test framework is based on C++, where the declaration of
  snprintf is different.  */
 #ifndef __cplusplus