Fix some compilation warnings and add esp-idf platform for experiment (#454)

And fix some code indent issues.

product-mini/platforms/esp-idf/CMakeLists.txt

@@ -0,0 +1,55 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+# from ESP-IDF 4.0 examples/build_system/cmake/idf_as_lib
+cmake_minimum_required(VERSION 3.5)
+
+project(wamr_esp_idf C)
+
+enable_language (ASM)
+
+# Include for ESP-IDF build system functions
+include($ENV{IDF_PATH}/tools/cmake/idf.cmake)
+
+# Create idf::esp32 and idf::freertos static libraries
+idf_build_process(esp32
+                  # try and trim the build; additional components
+                  # will be included as needed based on dependency tree
+                  #
+                  # although esptool_py does not generate static library,
+                  # processing the component is needed for flashing related
+                  # targets and file generation
+                  COMPONENTS esp32 freertos esptool_py
+                  SDKCONFIG ${CMAKE_BINARY_DIR}/sdkconfig
+                  BUILD_DIR ${CMAKE_BINARY_DIR})
+
+include_directories(build/config
+                    xtensa/include
+                    $ENV{IDF_PATH}/components/esp32/include
+                    $ENV{IDF_PATH}/components/esp_common/include
+                    $ENV{IDF_PATH}/components/esp_rom/include
+                    $ENV{IDF_PATH}/components/freertos/include
+                    $ENV{IDF_PATH}/components/heap/include
+                    $ENV{IDF_PATH}/components/soc/esp32/include
+                    $ENV{IDF_PATH}/components/xtensa/include
+                    $ENV{IDF_PATH}/components/xtensa/esp32/include)
+
+set(WAMR_BUILD_PLATFORM "esp-idf")
+set(WAMR_BUILD_TARGET "XTENSA")
+set(WAMR_BUILD_INTERP 1)
+set(WAMR_BUILD_FAST_INTERP 1)
+set(WAMR_BUILD_AOT 1)
+set(WAMR_BUILD_LIBC_BUILTIN 1)
+set(WAMR_BUILD_LIBC_WASI 0)
+
+set(WAMR_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../..)
+
+include(${WAMR_ROOT_DIR}/build-scripts/runtime_lib.cmake)
+add_library(vmlib ${WAMR_RUNTIME_LIB_SOURCE})
+
+set(elf_file ${CMAKE_PROJECT_NAME}.elf)
+add_executable(${elf_file} main.c iwasm_main.c)
+
+# Link the static libraries to the executable
+target_link_libraries(${elf_file} idf::esp32 idf::freertos idf::spi_flash vmlib)
+

product-mini/platforms/esp-idf/sources.mk

@@ -1,5 +1,5 @@
 # TODO: set WAMR root dir
-WAMR_ROOT := ../../../../
+WAMR_ROOT := ../../..
 
 override PROJECT_CFLAGS := $(PROJECT_CFLAGS) -Wno-unused-parameter -Wno-pedantic
 
@@ -12,11 +12,11 @@ override PROJECT_CFLAGS := $(PROJECT_CFLAGS) \
                            -I$(WAMR_INC_ROOT)/core/shared/utils \
                            -I$(WAMR_INC_ROOT)/core/shared/mem-alloc \
                            -I$(WAMR_INC_ROOT)/core/shared/platform/include \
-                           -I$(WAMR_INC_ROOT)/core/shared/platform/freertos \
+                           -I$(WAMR_INC_ROOT)/core/shared/platform/esp-idf \
                            -I$(WAMR_INC_ROOT)/core/iwasm/interpreter
 
 override PROJECT_CFLAGS := $(PROJECT_CFLAGS) \
-                           -DBH_PLATFORM_FREERTOS \
+                           -DBH_PLATFORM_ESP_IDF \
                            -DBH_MALLOC=wasm_runtime_malloc \
                            -DBH_FREE=wasm_runtime_free \
                            -DBUILD_TARGET_X86_32 \
@@ -25,10 +25,11 @@ override PROJECT_CFLAGS := $(PROJECT_CFLAGS) \
                            -DWASM_ENABLE_LIBC_BUILTIN=1
 
 override PROJECT_CSRC := $(PROJECT_CSRC) \
-                         $(WAMR_SRC_ROOT)/core/shared/platform/freertos/freertos_platform.c \
-                         $(WAMR_SRC_ROOT)/core/shared/platform/freertos/freertos_thread.c \
-                         $(WAMR_SRC_ROOT)/core/shared/platform/freertos/freertos_time.c \
-                         $(WAMR_SRC_ROOT)/core/shared/platform/common/math/math.c \
+                         $(WAMR_SRC_ROOT)/core/shared/platform/esp-idf/espidf_platform.c \
+                         $(WAMR_SRC_ROOT)/core/shared/platform/esp-idf/espidf_thread.c \
+                         $(WAMR_SRC_ROOT)/core/shared/platform/common/freertos/freertos_malloc.c \
+                         $(WAMR_SRC_ROOT)/core/shared/platform/common/freertos/freertos_thread.c \
+                         $(WAMR_SRC_ROOT)/core/shared/platform/common/freertos/freertos_time.c \
                          $(WAMR_SRC_ROOT)/core/shared/mem-alloc/mem_alloc.c \
                          $(WAMR_SRC_ROOT)/core/shared/mem-alloc/ems/ems_kfc.c \
                          $(WAMR_SRC_ROOT)/core/shared/mem-alloc/ems/ems_hmu.c \
@@ -50,5 +51,5 @@ override PROJECT_CSRC := $(PROJECT_CSRC) \
                          $(WAMR_SRC_ROOT)/core/iwasm/interpreter/wasm_interp_classic.c \
                          $(WAMR_SRC_ROOT)/core/iwasm/interpreter/wasm_loader.c \
                          $(WAMR_SRC_ROOT)/core/iwasm/interpreter/wasm_runtime.c \
-                         $(WAMR_SRC_ROOT)/product-mini/platforms/freertos/simple/iwasm_main.c \
-                         $(WAMR_SRC_ROOT)/product-mini/platforms/freertos/simple/main.c
+                         $(WAMR_SRC_ROOT)/product-mini/platforms/esp-idf/iwasm_main.c \
+                         $(WAMR_SRC_ROOT)/product-mini/platforms/esp-idf/main.c

product-mini/platforms/nuttx/wamr.mk

@@ -134,8 +134,6 @@ else
 CFLAGS += -DWASM_ENABLE_GLOBAL_HEAP_POOL=0
 endif
 
-CFLAGS += -DBH_ENABLE_MEMORY_PROFILING=0
-
 CFLAGS += -Wno-strict-prototypes -Wno-shadow -Wno-unused-variable
 CFLAGS += -Wno-int-conversion -Wno-implicit-function-declaration