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[compiler-rt] Detect arm hardfloat targets via __ARM_PCS_VFP #137175

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Merged
mstorsjo merged 1 commit into from
Apr 25, 2025
Merged

[compiler-rt] Detect arm hardfloat targets via __ARM_PCS_VFP #137175

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3 changes: 2 additions & 1 deletion compiler-rt/lib/builtins/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -877,6 +877,7 @@ else ()
# For ARM archs, exclude any VFP builtins if VFP is not supported
if (${arch} MATCHES "^(arm|armhf|armv7|armv7s|armv7k|armv7m|armv7em|armv8m.main|armv8.1m.main)$")
check_compile_definition(__ARM_FP "${CMAKE_C_FLAGS}" COMPILER_RT_HAS_${arch}_VFP)
check_compile_definition(__ARM_PCS_VFP "${CMAKE_C_FLAGS}" COMPILER_RT_HAS_${arch}_ARMHF)
if(NOT COMPILER_RT_HAS_${arch}_VFP)
list(REMOVE_ITEM ${arch}_SOURCES ${arm_Thumb1_VFPv2_DP_SOURCES} ${arm_Thumb1_VFPv2_SP_SOURCES} ${arm_Thumb1_SjLj_EH_SOURCES})
else()
Expand Down Expand Up @@ -908,7 +909,7 @@ else ()

# Needed for clear_cache on debug mode, due to r7's usage in inline asm.
# Release mode already sets it via -O2/3, Debug mode doesn't.
if (${arch} STREQUAL "armhf")
if (COMPILER_RT_HAS_${arch}_ARMHF)
list(APPEND BUILTIN_CFLAGS_${arch} -fomit-frame-pointer -DCOMPILER_RT_ARMHF_TARGET)
endif()

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