CFLAGS에 주니 이상해서
CC = (CROSS_COMPILE)gcc -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp
주고 컴파일 후
$ readelf -a u-boot
로 확인해본 내용
$ readelf -a u-boot Attribute Section: aeabi File Attributes Tag_CPU_name: "5" Tag_CPU_arch: v5T Tag_ARM_ISA_use: Yes Tag_THUMB_ISA_use: Thumb-1 Tag_ABI_PCS_wchar_t: 4 Tag_ABI_FP_denormal: Needed Tag_ABI_FP_exceptions: Needed Tag_ABI_FP_number_model: IEEE 754 Tag_ABI_align8_needed: Yes Tag_ABI_enum_size: int |
$ readelf -a u-boot Attribute Section: aeabi File Attributes Tag_CPU_name: "7-A" Tag_CPU_arch: v7 Tag_CPU_arch_profile: Application Tag_ARM_ISA_use: Yes Tag_THUMB_ISA_use: Thumb-2 Tag_FP_arch: VFPv3 Tag_Advanced_SIMD_arch: NEONv1 Tag_ABI_PCS_wchar_t: 4 Tag_ABI_FP_denormal: Needed Tag_ABI_FP_exceptions: Needed Tag_ABI_FP_number_model: IEEE 754 Tag_ABI_align_needed: 8-byte Tag_ABI_enum_size: int |
머.. 그렇게 한다고 해도.. neon이나 vfpv3가 활성화 되진 않네..
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