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Workaround for Cortex-M33 Arm toochain linking #14401

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Merged
merged 1 commit into from
Mar 11, 2021
Merged

Workaround for Cortex-M33 Arm toochain linking #14401

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7 changes: 7 additions & 0 deletions tools/cmake/cores/Cortex-M33-NS.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,13 @@ elseif(${MBED_TOOLCHAIN} STREQUAL "ARM")
"-mcpu=cortex-m33+nodsp"
"-mfpu=none"
)
list(APPEND link_options
# Necessary as the linker does not always detect
# the architecture from the objectfiles correctly.
# Also, the complete flag should be "--cpu=Cortex-M33.no_dsp.no_fp"
# but this currently conflicts with CMake's compiler test until fixed
"--cpu=Cortex-M33.no_fp"
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@LDong-Arm LDong-Arm Mar 9, 2021 •
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@0xc0170 This works, as long as no_dsp is not there.

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Similar change for Cortex-M4 made by ST:

mbed-os/tools/cmake/cores/Cortex-M4.cmake

Lines 15 to 19 in 0e89f9d

#Necessary as the linker does not always detect
#the architecture from the objectfiles correctly.
list(APPEND link_options
"--cpu=Cortex-M4.no_fp"
)

)
endif()

function(mbed_set_cpu_core_definitions target)
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7 changes: 7 additions & 0 deletions tools/cmake/cores/Cortex-M33.cmake
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,13 @@ elseif(${MBED_TOOLCHAIN} STREQUAL "ARM")
"-mcpu=cortex-m33+nodsp"
"-mfpu=none"
)
list(APPEND link_options
# Necessary as the linker does not always detect
# the architecture from the objectfiles correctly.
# Also, the complete flag should be "--cpu=Cortex-M33.no_dsp.no_fp"
# but this currently conflicts with CMake's compiler test until fixed
"--cpu=Cortex-M33.no_fp"
)
endif()

function(mbed_set_cpu_core_definitions target)
Expand Down