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RCS file: /cvsrepo/anoncvs/cvs/www/innovations.html,v
retrieving revision 1.88
retrieving revision 1.89
diff -c -r1.88 -r1.89
*** www/innovations.html	2020/08/13 15:30:13	1.88
--- www/innovations.html	2020/10/12 16:47:20	1.89
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*** 171,183 ****
  	relative branches/calls.  Basically a unique address space for each
  	kernel boot, similar to the userland fork+exec model described above
  	but for the kernel.  Theo de Raadt, June 2017.
!     <li>
! 	Rearranged i386/amd64 register allocator order in
  	<a href="https://man.openbsd.org/clang.1">clang(1)</a>
  	to reduce polymorphic RET instructions:
  	Todd Mortimer, November 20, 2017.
!     <li>
! 	Reencoding of i386/amd64 instruction sequences to avoid
  	embedded polymorphic RET instructions.  Enhancements to
  	<a href="https://man.openbsd.org/clang.1">clang(1)</a>
  	Todd Mortimer, April 28, 2018 and onwards.
--- 171,181 ----
  	relative branches/calls.  Basically a unique address space for each
  	kernel boot, similar to the userland fork+exec model described above
  	but for the kernel.  Theo de Raadt, June 2017.
!     <li>Rearranged i386/amd64 register allocator order in
  	<a href="https://man.openbsd.org/clang.1">clang(1)</a>
  	to reduce polymorphic RET instructions:
  	Todd Mortimer, November 20, 2017.
!     <li>Reencoding of i386/amd64 instruction sequences to avoid
  	embedded polymorphic RET instructions.  Enhancements to
  	<a href="https://man.openbsd.org/clang.1">clang(1)</a>
  	Todd Mortimer, April 28, 2018 and onwards.
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*** 190,197 ****
      <li><b>RETGUARD</b> is a replacement for the <b>stack-protector</b>
  	which uses a per-function random cookie (located in the read-only ELF
  	<b>.openbsd.randomdata</b> section) to consistency-check the
! 	return address on the stack.  Implemented for AMD64 and ARM64
! 	by Todd Mortimer in OpenBSD 6.4, and for Octeon in OpenBSD 6.7.
      <li><b>MAP_CONCEAL</b> addition to
  	<a href="https://man.openbsd.org/mmap.2">mmap(2)</a>
  	disallows memory pages to be written to core dumps, preventing
--- 188,196 ----
      <li><b>RETGUARD</b> is a replacement for the <b>stack-protector</b>
  	which uses a per-function random cookie (located in the read-only ELF
  	<b>.openbsd.randomdata</b> section) to consistency-check the
! 	return address on the stack.  Implemented for amd64 and arm64
! 	by Todd Mortimer in OpenBSD 6.4, for mips64 in OpenBSD 6.7, and
! 	powerpc/power64 in OpenBSD 6.9.
      <li><b>MAP_CONCEAL</b> addition to
  	<a href="https://man.openbsd.org/mmap.2">mmap(2)</a>
  	disallows memory pages to be written to core dumps, preventing