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Enable Star-MC3 for AC6 and GCC via Cortex-M52 compatibility #2340

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Merged
brondani merged 1 commit into from
Jan 30, 2026
Merged

Enable Star-MC3 for AC6 and GCC via Cortex-M52 compatibility #2340

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39 changes: 39 additions & 0 deletions tools/buildmgr/cbuildgen/config/AC6.6.16.2.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -162,6 +162,8 @@ elseif(CPU STREQUAL "Star-MC1")
set(ARMASM_CPU "--cpu=Star-MC1")
endif()
endif()
elseif(CPU STREQUAL "Star-MC3")
set(ARMASM_CPU " ")
elseif(CPU STREQUAL "Cortex-M35P")
if(FPU STREQUAL "NO_FPU")
if(DSP STREQUAL "NO_DSP")
Expand Down Expand Up @@ -400,6 +402,43 @@ elseif(CPU STREQUAL "Cortex-M35P")
set(ARMCLANG_CPU "-mcpu=Cortex-M35P+nodsp -mfpu=none")
endif()
endif()
elseif(CPU STREQUAL "Star-MC3")
message("Star-MC3 support using Cortex-M52 compatibility mode.")
set(ARMCLANG_ARCH "armv8.1m.main")
set(CPU_FEATURES "Cortex-M52")
if(MVE STREQUAL "NO_MVE")
if(FPU STREQUAL "NO_FPU")
set(CPU_FEATURES "${CPU_FEATURES}+nomve+nofp")
elseif(FPU STREQUAL "SP_FPU")
set(CPU_FEATURES "${CPU_FEATURES}+nomve+nofp.dp")
elseif(FPU STREQUAL "DP_FPU")
set(CPU_FEATURES "${CPU_FEATURES}+nomve")
endif()
elseif(MVE STREQUAL "INT_MVE")
if(FPU STREQUAL "NO_FPU")
set(CPU_FEATURES "${CPU_FEATURES}+nomve.fp+nofp")
elseif(FPU STREQUAL "SP_FPU")
set(CPU_FEATURES "${CPU_FEATURES}+nomve.fp+nofp.dp")
elseif(FPU STREQUAL "DP_FPU")
message(FATAL_ERROR "Error: Cortex-M52+nomve.fp is not supported!")
endif()
elseif(MVE STREQUAL "FP_MVE")
if(FPU STREQUAL "NO_FPU")
message(FATAL_ERROR "Error: Cortex-M52+nofp is not supported!")
elseif(FPU STREQUAL "SP_FPU")
message(FATAL_ERROR "Error: Cortex-M52+nofp.dp is not supported!")
elseif(FPU STREQUAL "DP_FPU")
set(CPU_FEATURES "${CPU_FEATURES}")
endif()
endif()
if(PACBTI STREQUAL "NO_PACBTI")
set(CPU_FEATURES "${CPU_FEATURES}+nopacbti")
endif()
if(FPU STREQUAL "NO_FPU")
set(ARMCLANG_CPU "-mcpu=${CPU_FEATURES}")
else()
set(ARMCLANG_CPU "-mcpu=${CPU_FEATURES} -mfloat-abi=hard")
endif()
elseif(CPU STREQUAL "Cortex-M52")
set(ARMCLANG_ARCH "armv8.1m.main")
set(CPU_FEATURES "Cortex-M52")
Expand Down
17 changes: 17 additions & 0 deletions tools/buildmgr/cbuildgen/config/GCC.10.3.1.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -147,6 +147,23 @@ elseif(CPU STREQUAL "Cortex-M35P")
set(GNUASM_CPU "-mcpu=cortex-m35p+nodsp")
endif()
endif()
elseif(CPU STREQUAL "Star-MC3")
message("Star-MC3 support using Cortex-M52 compatibility mode.")
if(FPU STREQUAL "NO_FPU")
if(MVE STREQUAL "NO_MVE")
set(GNUASM_CPU "-mcpu=cortex-m52+nofp+nomve")
else()
set(GNUASM_CPU "-mcpu=cortex-m52+nofp")
endif()
else()
if(MVE STREQUAL "NO_MVE")
set(GNUASM_CPU "-mcpu=cortex-m52+nomve -mfloat-abi=hard")
elseif(MVE STREQUAL "MVE")
set(GNUASM_CPU "-mcpu=cortex-m52+nomve.fp -mfloat-abi=hard")
else()
set(GNUASM_CPU "-mcpu=cortex-m52 -mfloat-abi=hard")
endif()
endif()
elseif(CPU STREQUAL "Cortex-M55")
if(FPU STREQUAL "NO_FPU")
if(MVE STREQUAL "NO_MVE")
Expand Down
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