e4d660b2dc
rv32iafc-ilp32 is compatible with rv32iac-ilp32 for library implementation, so add a reuse rule allowing the default configuration to support rv32iafc. -IAFC is an unusual configuration (much less common than -IMAFC), but multilib reuse has essentially no cost: this change is useful to users of platforms that support hardware floating-point but cannot use hardware multiply/divide for any reason. To avoid generating a new set of libraries this is limited to the soft-float ABI. Tested by verifying that `gcc -march=rv32iafc -mabi=ilp32 --print-search-dirs` refers to the rv32iac/ilp32 library directory as expected, rather than just the root library directory as occurs when an unsupported target is selected (for instance, rv32id). Change-Id: Ie056ba6488a138fe0876eebf7cbc59477b3c3518 Signed-off-by: Peter Marheine <pmarheine@chromium.org> Signed-off-by: Patrick Georgi <patrick@coreboot.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/76539 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
README ------ This is a cross toolchain builder for -elf toolchains (ie. no libc support) known working: i386-elf x86_64-elf powerpc-elf arm-elf armv7a-eabi aarch64-elf known broken: alpha-elf powerpc64-elf