need add martos functions in main.c

examples/c-examples/ex/.gitignore

@@ -0,0 +1,5 @@
+/.vscode
+/.embuild
+build/
+components/*/target/
+Cargo.lock

examples/c-examples/ex/CMakeLists.txt

@@ -0,0 +1,6 @@
+# The following lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.5)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(ex)

examples/c-examples/ex/components/rust_ex/CMakeLists.txt

@@ -0,0 +1,81 @@
+# If this component depends on other components - be it ESP-IDF or project-specific ones - enumerate those in the double-quotes below, separated by spaces
+# Note that pthread should always be there, or else STD will not work
+set(RUST_DEPS "pthread" "driver" "vfs")
+# Here's a non-minimal, reasonable set of ESP-IDF components that one might want enabled for Rust:
+#set(RUST_DEPS "pthread" "esp_http_client" "esp_http_server" "espcoredump" "app_update" "esp_serial_slave_link" "nvs_flash" "spi_flash" "esp_adc_cal" "mqtt")
+
+idf_component_register(
+   SRCS "placeholder.c"
+   INCLUDE_DIRS ""
+   PRIV_REQUIRES "${RUST_DEPS}"
+)
+
+if(CONFIG_IDF_TARGET_ARCH_RISCV)
+    if (CONFIG_IDF_TARGET_ESP32C6 OR CONFIG_IDF_TARGET_ESP32C5 OR CONFIG_IDF_TARGET_ESP32H2)
+        set(RUST_TARGET "riscv32imac-esp-espidf")
+    else ()
+        set(RUST_TARGET "riscv32imc-esp-espidf")
+    endif()
+elseif(CONFIG_IDF_TARGET_ESP32)
+    set(RUST_TARGET "xtensa-esp32-espidf")
+elseif(CONFIG_IDF_TARGET_ESP32S2)
+    set(RUST_TARGET "xtensa-esp32s2-espidf")
+elseif(CONFIG_IDF_TARGET_ESP32S3)
+    set(RUST_TARGET "xtensa-esp32s3-espidf")
+else()
+    message(FATAL_ERROR "Unsupported target ${CONFIG_IDF_TARGET}")
+endif()
+
+if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+    set(CARGO_BUILD_TYPE "debug")
+    set(CARGO_BUILD_ARG "")
+else()
+    set(CARGO_BUILD_TYPE "release")
+    set(CARGO_BUILD_ARG "--release")
+endif()
+
+set(CARGO_BUILD_STD_ARG -Zbuild-std=std,panic_abort)
+
+if(IDF_VERSION_MAJOR GREATER "4")
+set(ESP_RUSTFLAGS "--cfg espidf_time64")
+endif()
+
+set(CARGO_PROJECT_DIR "${CMAKE_CURRENT_LIST_DIR}")
+set(CARGO_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}")
+set(CARGO_TARGET_DIR "${CARGO_BUILD_DIR}/target")
+
+set(RUST_INCLUDE_DIR "${CARGO_TARGET_DIR}")
+# if this component uses CBindGen to generate a C header, uncomment the lines below and adjust the header name accordingly
+#set(RUST_INCLUDE_HEADER "${RUST_INCLUDE_DIR}/RustApi.h")
+#set_source_files_properties("${RUST_INCLUDE_HEADER}" PROPERTIES GENERATED true)
+
+idf_build_get_property(sdkconfig SDKCONFIG)
+idf_build_get_property(idf_path IDF_PATH)
+
+ExternalProject_Add(
+    project_rust_ex
+    PREFIX "${CARGO_PROJECT_DIR}"
+    DOWNLOAD_COMMAND ""
+    CONFIGURE_COMMAND ${CMAKE_COMMAND} -E env
+        cargo clean --target ${RUST_TARGET} --target-dir ${CARGO_TARGET_DIR}
+    USES_TERMINAL_BUILD true
+    BUILD_COMMAND ${CMAKE_COMMAND} -E env
+        CARGO_CMAKE_BUILD_INCLUDES=$<TARGET_PROPERTY:${COMPONENT_LIB},INCLUDE_DIRECTORIES>
+        CARGO_CMAKE_BUILD_LINK_LIBRARIES=$<TARGET_PROPERTY:${COMPONENT_LIB},LINK_LIBRARIES>
+        CARGO_CMAKE_BUILD_SDKCONFIG=${sdkconfig}
+        CARGO_CMAKE_BUILD_ESP_IDF=${idf_path}
+        CARGO_CMAKE_BUILD_COMPILER=${CMAKE_C_COMPILER}
+        RUSTFLAGS=${ESP_RUSTFLAGS}
+        MCU=${CONFIG_IDF_TARGET}
+        cargo build --target ${RUST_TARGET} --target-dir ${CARGO_TARGET_DIR} ${CARGO_BUILD_ARG} ${CARGO_BUILD_STD_ARG}
+    INSTALL_COMMAND ""
+    BUILD_ALWAYS TRUE
+    TMP_DIR "${CARGO_BUILD_DIR}/tmp"
+    STAMP_DIR "${CARGO_BUILD_DIR}/stamp"
+    DOWNLOAD_DIR "${CARGO_BUILD_DIR}"
+    SOURCE_DIR "${CARGO_PROJECT_DIR}"
+    BINARY_DIR "${CARGO_PROJECT_DIR}"
+    INSTALL_DIR "${CARGO_BUILD_DIR}"
+    BUILD_BYPRODUCTS
+        "${RUST_INCLUDE_HEADER}"
+)

examples/c-examples/ex/components/rust_ex/Cargo.toml

@@ -0,0 +1,31 @@
+[package]
+name = "rust_ex"
+version = "0.1.0"
+authors = ["Artem-Nesterenko2005 <[email protected]>"]
+edition = "2021"
+resolver = "2"
+rust-version = "1.77"
+
+[lib]
+crate-type = ["staticlib"]
+harness = false # do not use the built in cargo test harness -> resolve rust-analyzer errors
+
+
+[profile.release]
+opt-level = "s"
+
+[profile.dev]
+debug = true # Symbols are nice and they don't increase the size on Flash
+opt-level = "z"
+
+[features]
+default = []
+experimental = ["esp-idf-svc/experimental"]
+
+[dependencies]
+log = "0.4"
+esp-idf-svc = { version = "0.49", default-features = false, features = [] }
+martos = { version = "0.4.0", path = "../../../../..", features = ["c-library"] }
+
+[build-dependencies]
+embuild = "0.32.0"

examples/c-examples/ex/components/rust_ex/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+    embuild::espidf::sysenv::output();
+}

examples/c-examples/ex/components/rust_ex/placeholder.c

@@ -0,0 +1,13 @@
+/* Hello World Example
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+
+/* This is an empty source file to force the build of a CMake library that
+   can participate in the CMake dependency graph. This placeholder library
+   will depend on the actual library generated by external Rust build.
+*/

examples/c-examples/ex/components/rust_ex/rust-toolchain.toml

@@ -0,0 +1,2 @@
+[toolchain]
+channel = "esp"

examples/c-examples/ex/components/rust_ex/src/lib.rs

@@ -0,0 +1,11 @@
+#[no_mangle]
+pub extern "C" fn start_task_manager()
+{
+    martos::c_api::start_task_manager();
+}
+
+#[no_mangle]
+pub extern "C" fn init_system()
+{
+    martos::init_system();
+}

examples/c-examples/ex/diagram.json

@@ -0,0 +1,35 @@
+{
+    "version": 1,
+    "author": "Artem-Nesterenko2005 <[email protected]>",
+    "editor": "wokwi",
+    "parts": [
+        {
+            "type": "board-esp32-devkit-c-v4",
+            "id": "esp",
+            "top": 0,
+            "left": 0,
+            "attrs": {
+                "flashSize": "16"
+            }
+        }
+    ],
+    "connections": [
+        [
+            "esp:TX",
+            "$serialMonitor:RX",
+            "",
+            []
+        ],
+        [
+            "esp:RX",
+            "$serialMonitor:TX",
+            "",
+            []
+        ]
+    ],
+    "serialMonitor": {
+        "display": "terminal",
+        "convertEol": true
+    },
+    "dependencies": {}
+}

examples/c-examples/ex/main/CMakeLists.txt

@@ -1,6 +1,3 @@
 idf_component_register(SRCS "main.c" #INCLUDE_DIRS
 #"${CMAKE_CURRENT_LIST_DIR}/../rust-ex/src"
-REQUIRES rust-ex)
-
-#target_link_options(${COMPONENT_LIB} PUBLIC
-#-Wl,--whole-archive ${CARGO_TARGET_DIR}/librust_ex.a -Wl,--no-whole-archive)
+REQUIRES rust_ex)

examples/c-examples/ex/main/main.c

@@ -1,10 +1,9 @@
 #include <stdio.h>
-//#include "rust_lib.h"
-extern void init_system(void);
-extern void start_task_manager();
+//extern void init_system(void);
+//extern void start_task_manager();
 
 void app_main(void) {
-    init_system();
-    start_task_manager();
+    //init_system();
+    //start_task_manager();
     printf("Hello world from C!\n");
 }

examples/c-examples/ex/sdkconfig.defaults

@@ -0,0 +1,6 @@
+# Rust often needs a bit of an extra main task stack size compared to C (the default is 3K)
+CONFIG_ESP_MAIN_TASK_STACK_SIZE=8000
+
+# Workaround for https://github.com/espressif/esp-idf/issues/7631
+#CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=n
+#CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_FULL=n

examples/c-examples/ex/wokwi.toml

@@ -0,0 +1,4 @@
+[wokwi]
+version = 1
+firmware = 'build/flasher_args.json'
+elf = 'build/ex.elf'