Date: Thu, 8 Jun 2017 20:06:09 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r319718 - head/sys/libkern/arm64 Message-ID: <201706082006.v58K69Ee062607@repo.freebsd.org>
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Author: emaste Date: Thu Jun 8 20:06:09 2017 New Revision: 319718 URL: https://svnweb.freebsd.org/changeset/base/319718 Log: arm64: add ".arch armv8-a+crc" to allow use of crc instructions With Clang 5.0 the .arch directive is required, otherwise Clang complains "error: instruction requires: crc". This was reported in D10499 but not added initially, because clang 3.8 available on a ref machine reported unknown directive. Clang 4.0 allows but does not require the directive. Submitted by: andrew MFC after: 1 week Sponsored by: The FreeBSD Foundation Modified: head/sys/libkern/arm64/crc32c_armv8.S Modified: head/sys/libkern/arm64/crc32c_armv8.S ============================================================================== --- head/sys/libkern/arm64/crc32c_armv8.S Thu Jun 8 19:40:00 2017 (r319717) +++ head/sys/libkern/arm64/crc32c_armv8.S Thu Jun 8 20:06:09 2017 (r319718) @@ -27,6 +27,7 @@ #include <machine/asm.h> __FBSDID("$FreeBSD$"); +.arch armv8-a+crc /* * uint32_t
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