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As Guo explained, upstream gcc does not support abi-v1 (only abi-v2), but ck610 needs abi-v1 [0] [1] To simplify things, we make the whole C-SKY architecture require gcc-9 or later, and add a single exception in gcc to force the ck610 to use the C-SKY port. Note that this does not change the default gcc version to be used for C-SKY: the C-SKY port is still always the default one; the gcc-9 version is only proposed as an alternative (except for ck610, of course). [0] http://lists.busybox.net/pipermail/buildroot/2019-July/254386.html [1] package/Makefile.in#73 Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> Cc: Guo Ren <guoren@kernel.org> Cc: Arnout Vandecappelle <arnout@mind.be> Cc: Romain Naour <romain.naour@gmail.com> Acked-by: Guo Ren <guoren@kernel.org> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
50 lines
965 B
Plaintext
50 lines
965 B
Plaintext
choice
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prompt "Target Architecture Variant"
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default BR2_ck610
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help
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Specific CPU variant to use
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config BR2_ck610
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# Not supported by upstream gcc <= 9, and handled as a special
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# exception in package/gcc/Config.in.host
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bool "ck610"
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config BR2_ck807
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bool "ck807"
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config BR2_ck810
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bool "ck810"
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config BR2_ck860
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bool "ck860"
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endchoice
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config BR2_CSKY_FPU
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bool "Enable FPU coprocessor"
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depends on BR2_ck810 || BR2_ck807 || BR2_ck860
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help
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You can say N here if your C-SKY CPU doesn't have a
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Floating-Point Coprocessor or if you don't need FPU support
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for your user-space programs.
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config BR2_CSKY_VDSP
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bool "Enable VDSP enhanced instructions Co-processor"
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depends on BR2_CSKY_FPU
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config BR2_GCC_TARGET_FLOAT_ABI
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default "soft" if !BR2_CSKY_FPU
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default "hard" if BR2_CSKY_FPU
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config BR2_ARCH
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default "csky"
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config BR2_ENDIAN
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default "LITTLE"
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config BR2_READELF_ARCH_NAME
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default "CSKY"
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# vim: ft=kconfig
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# -*- mode:kconfig; -*-
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