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Port WAMR to ESP-IDF (#892)

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This PR introduces an implementation of the WAMR platform APIs for ESP-IDF and enables support for Espressif microcontrollers, and adds the documentation around how to build WAMR for ESP-IDF.

This PR is related to the following issues at WAMR: closes #883, #628, #449 and #668 as well as [#4735](https://github.com/espressif/esp-idf/issues/4735) at the esp-idf repo. It implements most functions required by [platform_api_vmcore.h](https://github.com/bytecodealliance/wasm-micro-runtime/blob/main/core/shared/platform/include/platform_api_vmcore.h).

The PR works in interpreter mode on Esp32c3 and Esp32. For the AOT mode, currently errors occur on both platforms with `Guru Meditation Error`. It seems that the AOT code isn't run with shared memory as os_mmap() allocates memory with malloc() API, it is to be fixed in the future.
This commit is contained in:
Bastian Kersting
2021-12-20 03:52:59 +01:00
committed by GitHub
parent 5be427bfa2
commit a9f1c2b64a
14 changed files with 734 additions and 380 deletions
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94
product-mini/platforms/esp-idf/CMakeLists.txt
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@ -3,53 +3,75 @@
# from ESP-IDF 4.0 examples/build_system/cmake/idf_as_lib
cmake_minimum_required(VERSION 3.5)
project(wamr_on_esp32c3)
project(wamr_esp_idf C)
enable_language(ASM)
enable_language (ASM)
if (NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Release)
endif ()
if("${IDF_TARGET}" STREQUAL "")
message(FATAL_ERROR "You need to set IDF_TARGET to your target string")
endif()
# Include for ESP-IDF build system functions
include($ENV{IDF_PATH}/tools/cmake/idf.cmake)
# Create idf::esp32c3 and idf::freertos static libraries
idf_build_process(${IDF_TARGET}
# 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 ${IDF_TARGET} freertos esptool_py
SDKCONFIG ${CMAKE_BINARY_DIR}/sdkconfig
BUILD_DIR ${CMAKE_BINARY_DIR})
# 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
$ENV{IDF_PATH}/components/xtensa/esp32/include)
# Set WAMR's build options
if("${IDF_TARGET}" STREQUAL "esp32c3")
set(WAMR_BUILD_TARGET "RISCV32")
else()
set(WAMR_BUILD_TARGET "XTENSA")
add_compile_options(-DWAMR_BUILD_TARGET_XTENSA=1)
endif()
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)
if (NOT DEFINED WAMR_BUILD_INTERP)
set (WAMR_BUILD_INTERP 0)
endif ()
if (NOT DEFINED WAMR_BUILD_FAST_INTERP)
set (WAMR_BUILD_FAST_INTERP 0)
endif ()
if (NOT DEFINED WAMR_BUILD_AOT)
set (WAMR_BUILD_AOT 1)
endif ()
if (NOT DEFINED WAMR_BUILD_LIBC_BUILTIN)
set (WAMR_BUILD_LIBC_BUILTIN 1)
endif ()
if (NOT DEFINED WAMR_BUILD_APP_FRAMEWORK)
set (WAMR_BUILD_APP_FRAMEWORK 0)
endif ()
# Set the compile time variable so that the right binary is selected
add_compile_options(-DWAMR_BUILD_INTERP=${WAMR_BUILD_INTERP})
set(WAMR_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../..)
include(${WAMR_ROOT_DIR}/build-scripts/runtime_lib.cmake)
# define WAMR as library and provide it the esp-idf srcs
add_library(vmlib ${WAMR_RUNTIME_LIB_SOURCE})
target_link_libraries(vmlib PUBLIC idf::pthread idf::${IDF_TARGET} idf::freertos)
# Define the final executable
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(${elf_file} idf::esp32 idf::freertos idf::spi_flash vmlib)
add_executable(${elf_file} main.c test_wasm.h)
target_link_libraries(${elf_file} idf::${IDF_TARGET} idf::freertos idf::spi_flash vmlib)
idf_build_executable(${elf_file})