24 lines
927 B
Makefile
24 lines
927 B
Makefile
# Configuration for Linux on ARM.
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# Generating binaries for the ARMv4T architecture and higher
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#
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# Supporting armv4 (without thumb) does not make much sense since
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# it's mostly an obsoleted instruction set architecture (only available
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# in StrongArm and arm8). Supporting armv4 will require a lot of conditional
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# code in assembler source since the bx (branch and exchange) instruction is
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# not supported.
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#
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$(warning ARMv4t support is currently a work in progress. It does not work right now!)
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ARCH_ARM_HAVE_THUMB_SUPPORT := false
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ARCH_ARM_HAVE_THUMB_INTERWORKING := false
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ARCH_ARM_HAVE_64BIT_DATA := false
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ARCH_ARM_HAVE_HALFWORD_MULTIPLY := false
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ARCH_ARM_HAVE_CLZ := false
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ARCH_ARM_HAVE_FFS := false
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DEFAULT_TARGET_CPU := arm920t
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# Note: Hard coding the 'tune' value here is probably not ideal,
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# and a better solution should be found in the future.
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#
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arch_variant_cflags := -march=armv4t -mtune=arm920t -D__ARM_ARCH_4T__
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