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* Replace use of the pipe(2) system call with pipe2(2) with a zero flagsbrooks2016-06-222-58/+0
| | | | | | | | | | | | | | | | value. This eliminates the need for machine dependant assembly wrappers for pipe(2). It also make passing an invalid address to pipe(2) return EFAULT rather than triggering a segfault. Document this behavior (which was already true for pipe2(2), but undocumented). Reviewed by: andrew Approved by: re (gjb) Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D6815
* Do not generate code for sbrk syscall -- sbrk support was removed.br2016-05-251-0/+1
| | | | Pointed out by: andrew
* Remove legacy brk and sbrk from RISC-V.br2016-05-253-159/+1
| | | | | | Discussed with: andrew Sponsored by: DARPA, AFRL Sponsored by: HEIF5
* Bring in initial libc and libstand support for RISC-V.br2016-01-179-0/+459
Reviewed by: andrew, emaste, kib Sponsored by: DARPA, AFRL Sponsored by: HEIF5 Differential Revision: https://reviews.freebsd.org/D4943
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