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https://github.com/espressif/esp-idf.git
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6587e75251
This commit adds "bare metal stubs" xtensa_rtos.h glue layer to mimic a bare metal OS port. The bare metal stubs don't access any components outside of the G0 group.
67 lines
2.7 KiB
CMake
67 lines
2.7 KiB
CMake
# Xtensa Component Architecture
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#
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# The ESP-IDF Xtesna component contains two major features:
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# - The Xtensa HAL
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# - The Xtensa RTOS porting layer
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#
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# The Xtensa HAL provides various macros/functions regarding the Xtensa processor's configuration and extensions (see
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# "sys_sw_rm.pdf 3.1"). The Xtensa HAL...
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# - is packaged as a library ("libxt_hal.a") in the ESP-IDF Xtensa component
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# - expects `#include <xtensa/...h>` as the include path to the Xtensa HAL's headers
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#
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# The Xtensa RTOS Porting Layer is a set of helper functions and interrupt vectors that act as a basis of an RTOS port.
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# The porting layer sources files are OS agnostic, thus are common across multiple Xtensa RTOS ports (e.g., FreeRTOS,
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# ThreadX). The Xtensa RTOS Porting Layer...
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# - interfaces with an RTOS port via the "xtensa_rtos.h" header provided by the RTOS port
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# - expected `#include <...h>` as the incldue path to the porting layer's headers
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idf_build_get_property(target IDF_TARGET)
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idf_build_get_property(arch IDF_TARGET_ARCH)
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if(NOT "${arch}" STREQUAL "xtensa")
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return()
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endif()
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set(include_dirs
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"${target}/include" # - Add include path for target specific Xtensa HAL headers (`#include <xtensa/...h>`)
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"include" # - Add include path for...
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# - common Xtensa HAL headers (`#include <xtensa/...h>`)
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# - Xtensa RTOS porting layer headers (`#include <...h>`)
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"deprecated_include") # - For deprecated include paths (see IDF-7230)
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set(srcs
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"eri.c"
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"xt_trax.c")
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# Minor optimization. The following sources are excluded from the bootloader as they are not required by the bootloader.
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#
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# - ROM provides a copy of basic exception vectors (e.g., _UserExceptionVector and _WindowOverflow8)
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# - The bootloader doesn't register any interrupts, thus...
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# - the "xtensa_api.h" isn't used
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# - the "xtensa_context.h" functions aren't used as there are no interrupts to trigger a context switch
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if(NOT BOOTLOADER_BUILD)
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list(APPEND srcs
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"xtensa_context.S"
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"xtensa_intr_asm.S"
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"xtensa_intr.c"
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"xtensa_vectors.S")
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if(CONFIG_ESP32_IRAM_AS_8BIT_ACCESSIBLE_MEMORY)
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list(APPEND srcs "xtensa_loadstore_handler.S")
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endif()
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if(NOT CONFIG_FREERTOS_PORT)
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# No RTOS provided. Use default bare metal stubs (to pass G0 build test)
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list(APPEND srcs
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"baremetal/xtensa_rtos_bm.S")
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list(APPEND include_dirs
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"baremetal") # For "...h"
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endif()
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endif()
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idf_component_register(SRCS ${srcs}
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INCLUDE_DIRS ${include_dirs}
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LDFRAGMENTS linker.lf)
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target_link_libraries(${COMPONENT_LIB} PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/${target}/libxt_hal.a")
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