From owner-svn-src-stable@freebsd.org Tue Sep 8 20:28:40 2020 Return-Path: Delivered-To: svn-src-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 71D353D6B54; Tue, 8 Sep 2020 20:28:40 +0000 (UTC) (envelope-from dim@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BmGvD2Scnz4Q6F; Tue, 8 Sep 2020 20:28:40 +0000 (UTC) (envelope-from dim@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 37B8D16262; Tue, 8 Sep 2020 20:28:40 +0000 (UTC) (envelope-from dim@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 088KSevp054367; Tue, 8 Sep 2020 20:28:40 GMT (envelope-from dim@FreeBSD.org) Received: (from dim@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 088KSdHL054366; Tue, 8 Sep 2020 20:28:39 GMT (envelope-from dim@FreeBSD.org) Message-Id: <202009082028.088KSdHL054366@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: dim set sender to dim@FreeBSD.org using -f From: Dimitry Andric Date: Tue, 8 Sep 2020 20:28:39 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r365472 - in stable: 11/contrib/llvm-project/compiler-rt/lib/builtins 11/lib/libcompiler_rt 12/contrib/llvm-project/compiler-rt/lib/builtins 12/lib/libcompiler_rt X-SVN-Group: stable-11 X-SVN-Commit-Author: dim X-SVN-Commit-Paths: in stable: 11/contrib/llvm-project/compiler-rt/lib/builtins 11/lib/libcompiler_rt 12/contrib/llvm-project/compiler-rt/lib/builtins 12/lib/libcompiler_rt X-SVN-Commit-Revision: 365472 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Sep 2020 20:28:40 -0000 Author: dim Date: Tue Sep 8 20:28:39 2020 New Revision: 365472 URL: https://svnweb.freebsd.org/changeset/base/365472 Log: Revert r365471 as it is breaking with old gcc on various arches: MFC r364753: Add atomic and bswap functions to libcompiler_rt There have been several mentions on our mailing lists about missing atomic functions in our system libraries (e.g. __atomic_load_8 and friends), and recently I saw __bswapdi2 and __bswapsi2 mentioned too. To address this, add implementations for the functions from compiler-rt to the system compiler support libraries, e.g. libcompiler_rt.a and and libgcc_s.so. This also needs a small fixup in compiler-rt's atomic.c, to ensure that 32-bit mips can build correctly. Bump __FreeBSD_version to make it easier for port maintainers to detect when these functions were added. PR: 230888 Differential Revision: https://reviews.freebsd.org/D26159 MFC r364782: After r364753, there should be no need to suppress -Watomic-alignment warnings anymore for compiler-rt's atomic.c. This occurred because the IS_LOCK_FREE_8 macro was not correctly defined to 0 for mips, and this caused the compiler to emit a runtime call to __atomic_is_lock_free(), and that triggers the warning. Modified: stable/11/contrib/llvm-project/compiler-rt/lib/builtins/atomic.c stable/11/lib/libcompiler_rt/Makefile.inc Directory Properties: stable/11/ (props changed) Changes in other areas also in this revision: Modified: stable/12/contrib/llvm-project/compiler-rt/lib/builtins/atomic.c stable/12/lib/libcompiler_rt/Makefile.inc Directory Properties: stable/12/ (props changed) Modified: stable/11/contrib/llvm-project/compiler-rt/lib/builtins/atomic.c ============================================================================== --- stable/11/contrib/llvm-project/compiler-rt/lib/builtins/atomic.c Tue Sep 8 20:02:08 2020 (r365471) +++ stable/11/contrib/llvm-project/compiler-rt/lib/builtins/atomic.c Tue Sep 8 20:28:39 2020 (r365472) @@ -124,8 +124,8 @@ static __inline Lock *lock_for_pointer(void *ptr) { #define IS_LOCK_FREE_2 __c11_atomic_is_lock_free(2) #define IS_LOCK_FREE_4 __c11_atomic_is_lock_free(4) -/// 32 bit MIPS and PowerPC don't support 8-byte lock_free atomics -#if defined(__mips__) || (!defined(__powerpc64__) && defined(__powerpc__)) +/// 32 bit PowerPC doesn't support 8-byte lock_free atomics +#if !defined(__powerpc64__) && defined(__powerpc__) #define IS_LOCK_FREE_8 0 #else #define IS_LOCK_FREE_8 __c11_atomic_is_lock_free(8) Modified: stable/11/lib/libcompiler_rt/Makefile.inc ============================================================================== --- stable/11/lib/libcompiler_rt/Makefile.inc Tue Sep 8 20:02:08 2020 (r365471) +++ stable/11/lib/libcompiler_rt/Makefile.inc Tue Sep 8 20:28:39 2020 (r365472) @@ -18,9 +18,6 @@ SRCF+= ashldi3 SRCF+= ashlti3 SRCF+= ashrdi3 SRCF+= ashrti3 -SRCF+= atomic -SRCF+= bswapdi2 -SRCF+= bswapsi2 SRCF+= clear_cache SRCF+= clzdi2 SRCF+= clzsi2 @@ -218,6 +215,12 @@ CFLAGS+= -DEMIT_SYNC_ATOMICS SRCF+= stdatomic .endif +.if "${COMPILER_TYPE}" == "clang" && \ + (${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpcspe") +SRCS+= atomic.c +CFLAGS.atomic.c+= -Wno-atomic-alignment +.endif + .for file in ${SRCF} .if ${MACHINE_ARCH:Marmv6*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "") \ && exists(${CRTSRC}/${CRTARCH}/${file}vfp.S) @@ -239,9 +242,18 @@ SRCS+= aeabi_memmove.S SRCS+= aeabi_memset.S SRCS+= aeabi_uidivmod.S SRCS+= aeabi_uldivmod.S +SRCS+= bswapdi2.S +SRCS+= bswapsi2.S SRCS+= switch16.S SRCS+= switch32.S SRCS+= switch8.S SRCS+= switchu8.S SRCS+= sync_synchronize.S .endif + +# GCC-6.3 on mips32 requires bswap32 built-in. +.if ${MACHINE_CPUARCH} == "mips" +SRCS+= bswapdi2.c +SRCS+= bswapsi2.c +.endif +