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Add semihosting to cmake for executor_runner #3008

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Add semihosting to cmake for executor_runner #3008

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8 changes: 7 additions & 1 deletion examples/arm/ethos-u-setup/arm-none-eabi-gcc.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,13 @@ add_compile_definitions(
add_link_options(
-mcpu=${GCC_CPU}
-mthumb
--specs=nosys.specs)
)

if(SEMIHOSTING)
add_link_options(--specs=rdimon.specs)
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Can you include a rationale for enabling this in the commit / PR summary?

else()
add_link_options(--specs=nosys.specs)
endif()

# Set floating point unit
if(CMAKE_SYSTEM_PROCESSOR MATCHES "\\+fp")
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16 changes: 16 additions & 0 deletions examples/arm/executor_runner/CMakeLists.txt
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Expand Up @@ -12,6 +12,8 @@ if(NOT DEFINED ET_PTE_FILE_PATH)
"model is built into the binary.")
endif()

option(SEMIHOSTING "Enable semihosting" OFF)

# Example ExecuTorch demo for bare metal Cortex-M based systems
set(ET_DIR_PATH "../../.." CACHE PATH
"Path to ExecuTorch dir")
Expand Down Expand Up @@ -105,3 +107,17 @@ target_include_directories(arm_executor_runner PRIVATE
${CMAKE_CURRENT_BINARY_DIR})

add_dependencies(arm_executor_runner gen_model_header)


if(SEMIHOSTING)
target_compile_definitions(arm_executor_runner PUBLIC SEMIHOSTING)
endif()

# Fixup compilation of retarget.c
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Also create a ET GH task and refer that here?

if(SEMIHOSTING)
# Remove this when MLBEDSW-8910 is closed.
set_source_files_properties(
${ETHOS_SDK_PATH}/core_platform/targets/corstone-300/retarget.c
PROPERTIES HEADER_FILE_ONLY TRUE
)
endif()