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})
+