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Disable linker warning (#1114)

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In arm-gnu-toolchain-12.2 we see this warning, that's not relevant to
pico. Disable it.

warning: blink.elf has a LOAD segment with RWX permissions

Fixes #1029
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Peter Harper 2023-01-17 22:46:02 +00:00 committed by GitHub
parent 488bd66eb3
commit 419eb739c2
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1 changed files with 16 additions and 0 deletions
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16
src/rp2_common/pico_standard_link/CMakeLists.txt
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@ -94,4 +94,20 @@ if (NOT TARGET pico_standard_link)
target_compile_options(pico_standard_link INTERFACE -ffunction-sections -fdata-sections)
target_link_options(pico_standard_link INTERFACE "LINKER:--gc-sections")
endif()
# Ignore warnings about rwx segments introduced in binutils 2.39
execute_process(COMMAND ${CMAKE_C_COMPILER} -print-prog-name=ld RESULT_VARIABLE RUN_C_RESULT OUTPUT_VARIABLE FULL_LD_PATH
OUTPUT_STRIP_TRAILING_WHITESPACE)
if (${RUN_C_RESULT} EQUAL 0)
execute_process(COMMAND ${FULL_LD_PATH} --help RESULT_VARIABLE RUN_LD_RESULT OUTPUT_VARIABLE LD_HELP_OUTPUT
OUTPUT_STRIP_TRAILING_WHITESPACE)
if (${RUN_LD_RESULT} EQUAL 0)
set(RWX_WARNING "no-warn-rwx-segments")
string(FIND "${LD_HELP_OUTPUT}" "${RWX_WARNING}" LD_RWX_WARNING_SUPPORTED)
if (${LD_RWX_WARNING_SUPPORTED} GREATER -1)
target_link_options(pico_standard_link INTERFACE "LINKER:--${RWX_WARNING}")
endif()
endif()
endif()
endif()