MFC r292268, r334176
r292268:
Remove sys/types.h due to STANDARDS and unistd.h also includes
sys/types.h.
r334176:
Indicate the brk/sbrk are deprecated and not portable.
More firmly suggest mmap(2) instead.
Include the history of arm64 and riscv shipping without brk/sbrk.
Mention that sbrk(0) produces unreliable results.
Reviewed by: emaste, Marcin Cieślak
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D15535
git-svn-id: svn://svn.freebsd.org/base/stable/10@334440
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projects / FreeBSD / stable / 10.git / commit