Date: Thu, 4 Oct 2018 20:01:48 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r339183 - head/sys/amd64/amd64 Message-ID: <201810042001.w94K1m6G035133@repo.freebsd.org>
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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
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