Author: mjg Date: Thu Oct 4 20:01:48 2018 New Revision: 339183 URL: https://svnweb.freebsd.org/changeset/base/339183
Log: amd64: hide non-erms jump label under non-erms copyin/copyout This change is a no-op in terms of semantics, but has a side effect of removing a perfectly useless nop sled for CPUs with ERMS. Approved by: re (gjb) Sponsored by: The FreeBSD Foundation Modified: head/sys/amd64/amd64/support.S Modified: head/sys/amd64/amd64/support.S ============================================================================== --- head/sys/amd64/amd64/support.S Thu Oct 4 19:54:47 2018 (r339182) +++ head/sys/amd64/amd64/support.S Thu Oct 4 20:01:48 2018 (r339183) @@ -457,9 +457,9 @@ END(fillw) movq %rax,PCB_ONFAULT(%r9) POP_FRAME_POINTER ret -.endif ALIGN_TEXT 1: +.endif rep movsb @@ -525,9 +525,9 @@ END(copyout_smap_erms) movq %rax,PCB_ONFAULT(%r9) POP_FRAME_POINTER ret -.endif ALIGN_TEXT 1: +.endif rep movsb _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"