From owner-svn-src-head@freebsd.org Thu Jul 16 22:01:02 2020 Return-Path: Delivered-To: svn-src-head@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 17EAD36ECBF; Thu, 16 Jul 2020 22:01:02 +0000 (UTC) (envelope-from jhb@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 4B77Vj6yWLz48hL; Thu, 16 Jul 2020 22:01:01 +0000 (UTC) (envelope-from jhb@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 D2142F37D; Thu, 16 Jul 2020 22:01:01 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 06GM11hs037886; Thu, 16 Jul 2020 22:01:01 GMT (envelope-from jhb@FreeBSD.org) Received: (from jhb@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 06GM11Bh037883; Thu, 16 Jul 2020 22:01:01 GMT (envelope-from jhb@FreeBSD.org) Message-Id: <202007162201.06GM11Bh037883@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhb set sender to jhb@FreeBSD.org using -f From: John Baldwin Date: Thu, 16 Jul 2020 22:01:01 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r363264 - head/libexec/rtld-elf X-SVN-Group: head X-SVN-Commit-Author: jhb X-SVN-Commit-Paths: head/libexec/rtld-elf X-SVN-Commit-Revision: 363264 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Jul 2020 22:01:02 -0000 Author: jhb Date: Thu Jul 16 22:01:01 2020 New Revision: 363264 URL: https://svnweb.freebsd.org/changeset/base/363264 Log: Include FreeBSD ABI tag note in the ELF runtime loader. Reviewed by: kib Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D25306 Modified: head/libexec/rtld-elf/Makefile head/libexec/rtld-elf/rtld.c Modified: head/libexec/rtld-elf/Makefile ============================================================================== --- head/libexec/rtld-elf/Makefile Thu Jul 16 21:58:43 2020 (r363263) +++ head/libexec/rtld-elf/Makefile Thu Jul 16 22:01:01 2020 (r363264) @@ -17,6 +17,7 @@ PROG?= ld-elf.so.1 TAGS+= lib32 .endif SRCS= \ + crtbrand.S \ rtld_start.S \ reloc.c \ rtld.c \ @@ -29,6 +30,7 @@ SRCS= \ libmap.c MAN?= rtld.1 CSTD?= gnu99 +ACFLAGS+= -DLOCORE CFLAGS+= -Wall -DFREEBSD_ELF -DIN_RTLD -ffreestanding CFLAGS+= -I${SRCTOP}/lib/csu/common .if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH}) @@ -75,7 +77,7 @@ beforeinstall: -chflags -h noschg ${DESTDIR}/usr/libexec/${PROG} .endif -.PATH: ${RTLD_ELF_DIR}/${RTLD_ARCH} +.PATH: ${RTLD_ELF_DIR}/${RTLD_ARCH} ${SRCTOP}/lib/csu/common .if ${.CURDIR} == ${RTLD_ELF_DIR} HAS_TESTS= Modified: head/libexec/rtld-elf/rtld.c ============================================================================== --- head/libexec/rtld-elf/rtld.c Thu Jul 16 21:58:43 2020 (r363263) +++ head/libexec/rtld-elf/rtld.c Thu Jul 16 22:01:01 2020 (r363264) @@ -470,19 +470,6 @@ _rtld(Elf_Addr *sp, func_ptr_type *exit_proc, Obj_Entr } direct_exec = true; - /* - * Set osrel for us, it is later reset to the binary' - * value before first instruction of code from the binary - * is executed. - */ - mib[0] = CTL_KERN; - mib[1] = KERN_PROC; - mib[2] = KERN_PROC_OSREL; - mib[3] = getpid(); - osrel = __FreeBSD_version; - sz = sizeof(old_osrel); - (void)sysctl(mib, 4, &old_osrel, &sz, &osrel, sizeof(osrel)); - dbg("opening main program in direct exec mode"); if (argc >= 2) { rtld_argc = parse_args(argv, argc, &search_in_path, &fd, &argv0);