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Pico build size improvements #810

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merged 3 commits into from
Mar 8, 2023
Merged

Pico build size improvements #810

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ace2e6c
pico: add pico_cxx_options to BlitEngine
Daft-Freak Mar 5, 2023
12bc110
pico: enable function/data sections for BlitEngine
Daft-Freak Mar 5, 2023
29edb33
pico: use nano.specs
Daft-Freak Mar 5, 2023
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9 changes: 9 additions & 0 deletions 32blit-pico/CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
cmake_policy(SET CMP0079 NEW) # target_link_libraries() allows use with targets in other directories.

set(CMAKE_C_STANDARD 11)

# Initialise the Pico SDK
Expand All @@ -10,6 +12,12 @@ set(PICO_SDK_VERSION_MAJOR ${PICO_SDK_VERSION_MAJOR} PARENT_SCOPE)
set(PICO_SDK_VERSION_MINOR ${PICO_SDK_VERSION_MINOR} PARENT_SCOPE)
set(PICO_SDK_VERSION_REVISION ${PICO_SDK_VERSION_REVISION} PARENT_SCOPE)

# make sure BlitEngine is built with the right exception flags
target_link_libraries(BlitEngine pico_cxx_options)

# also enable function/data sectons
target_compile_options(BlitEngine PRIVATE -ffunction-sections -fdata-sections)

# driver helper
# can override driver choice by pre-setting BLIT_x_DRIVER
function(blit_driver DRV NAME)
Expand Down Expand Up @@ -133,6 +141,7 @@ endfunction()
function(blit_executable_int_flash NAME SOURCES)
add_executable(${NAME} ${SOURCES} ${ARGN})
target_link_libraries(${NAME} BlitHalPico BlitEngine)
target_link_options(${NAME} PUBLIC -specs=nano.specs -u _printf_float)

pico_enable_stdio_uart(${NAME} 1)
pico_enable_stdio_usb(${NAME} 0)
Expand Down