2 commits

Author	SHA1	Message	Date
Kristof Provost	7393b267c6	libc: Provide sub fp(s|g)etmask() implementations for RISC-V ... RISC-V doesn't support floating-point exceptions. RISC-V Instruction Set Manual: Volume I: User-Level ISA, 11.2 Floating-Point Control and Status Register: "As allowed by the standard, we do not support traps on floating-point exceptions in the base ISA, but instead require explicit checks of the flags in software. We considered adding branches controlled directly by the contents of the floating-point accrued exception flags, but ultimately chose to omit these instructions to keep the ISA simple." We still need these functions, because some applications (notably Perl) call them, but we cannot provide a meaningful implementation. Sponsored by: Axiado Differential Revision: https://reviews.freebsd.org/D25740	2020-08-03 12:48:51 +00:00
Ruslan Bukin	8d7e7a98db	Import RISC-V machine headers. This is a minimal set required to compile ... kernel and userland. Reviewed by: andrew, imp, kib Sponsored by: DARPA, AFRL Sponsored by: HEIF5 Differential Revision: https://reviews.freebsd.org/D4554	2015-12-17 18:44:30 +00:00