From owner-svn-src-stable@freebsd.org Mon Apr 22 10:02:36 2019 Return-Path: Delivered-To: svn-src-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D885815952B9; Mon, 22 Apr 2019 10:02:35 +0000 (UTC) (envelope-from kib@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) server-signature RSA-PSS (4096 bits) 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 7FEEC83803; Mon, 22 Apr 2019 10:02:35 +0000 (UTC) (envelope-from kib@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 5ABD4B485; Mon, 22 Apr 2019 10:02:35 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x3MA2Zal096177; Mon, 22 Apr 2019 10:02:35 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x3MA2YGD096175; Mon, 22 Apr 2019 10:02:34 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201904221002.x3MA2YGD096175@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Mon, 22 Apr 2019 10:02:34 +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: r346538 - in stable/11: lib/libc/stdlib libexec/rtld-elf X-SVN-Group: stable-11 X-SVN-Commit-Author: kib X-SVN-Commit-Paths: in stable/11: lib/libc/stdlib libexec/rtld-elf X-SVN-Commit-Revision: 346538 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 7FEEC83803 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.97 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.97)[-0.968,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.29 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: Mon, 22 Apr 2019 10:02:36 -0000 Author: kib Date: Mon Apr 22 10:02:34 2019 New Revision: 346538 URL: https://svnweb.freebsd.org/changeset/base/346538 Log: MFC r346225: Fix order of destructors between main binary and libraries. Modified: stable/11/lib/libc/stdlib/Symbol.map stable/11/lib/libc/stdlib/atexit.c stable/11/libexec/rtld-elf/rtld.c Directory Properties: stable/11/ (props changed) Modified: stable/11/lib/libc/stdlib/Symbol.map ============================================================================== --- stable/11/lib/libc/stdlib/Symbol.map Mon Apr 22 10:01:20 2019 (r346537) +++ stable/11/lib/libc/stdlib/Symbol.map Mon Apr 22 10:02:34 2019 (r346538) @@ -129,4 +129,5 @@ FBSDprivate_1.0 { _system; __libc_system; __cxa_thread_call_dtors; + __libc_atexit; }; Modified: stable/11/lib/libc/stdlib/atexit.c ============================================================================== --- stable/11/lib/libc/stdlib/atexit.c Mon Apr 22 10:01:20 2019 (r346537) +++ stable/11/lib/libc/stdlib/atexit.c Mon Apr 22 10:02:34 2019 (r346538) @@ -140,6 +140,7 @@ atexit(void (*func)(void)) error = atexit_register(&fn); return (error); } +__weak_reference(atexit, __libc_atexit); /** * Register a block to be performed at exit. Modified: stable/11/libexec/rtld-elf/rtld.c ============================================================================== --- stable/11/libexec/rtld-elf/rtld.c Mon Apr 22 10:01:20 2019 (r346537) +++ stable/11/libexec/rtld-elf/rtld.c Mon Apr 22 10:02:34 2019 (r346538) @@ -140,6 +140,7 @@ static int rtld_dirname(const char *, char *); static int rtld_dirname_abs(const char *, char *); static void *rtld_dlopen(const char *name, int fd, int mode); static void rtld_exit(void); +static void rtld_nop_exit(void); static char *search_library_path(const char *, const char *, const char *, int *); static char *search_library_pathfds(const char *, const char *, int *); @@ -278,6 +279,8 @@ char *ld_path_rtld = _PATH_RTLD; char *ld_standard_library_path = STANDARD_LIBRARY_PATH; char *ld_env_prefix = LD_; +static void (*rtld_exit_ptr)(void); + /* * Fill in a DoneList with an allocation large enough to hold all of * the currently-loaded objects. Keep this as a macro since it calls @@ -760,6 +763,7 @@ _rtld(Elf_Addr *sp, func_ptr_type *exit_proc, Obj_Entr *ld_bind_now != '\0', SYMLOOK_EARLY, &lockstate) == -1) rtld_die(); + rtld_exit_ptr = rtld_exit; if (obj_main->crt_no_init) preinit_main(); objlist_call_init(&initlist, &lockstate); @@ -782,7 +786,7 @@ _rtld(Elf_Addr *sp, func_ptr_type *exit_proc, Obj_Entr dbg("transferring control to program entry point = %p", obj_main->entry); /* Return the exit procedure and the program entry point. */ - *exit_proc = rtld_exit; + *exit_proc = rtld_exit_ptr; *objp = obj_main; return (func_ptr_type) obj_main->entry; } @@ -2641,6 +2645,7 @@ objlist_call_init(Objlist *list, RtldLockState *lockst Obj_Entry *obj; char *saved_msg; Elf_Addr *init_addr; + void (*reg)(void (*)(void)); int index; /* @@ -2669,7 +2674,16 @@ objlist_call_init(Objlist *list, RtldLockState *lockst */ elm->obj->init_done = true; hold_object(elm->obj); + reg = NULL; + if (elm->obj == obj_main && obj_main->crt_no_init) { + reg = (void (*)(void (*)(void)))get_program_var_addr( + "__libc_atexit", lockstate); + } lock_release(rtld_bind_lock, lockstate); + if (reg != NULL) { + reg(rtld_exit); + rtld_exit_ptr = rtld_nop_exit; + } /* * It is legal to have both DT_INIT and DT_INIT_ARRAY defined. @@ -2981,6 +2995,11 @@ rtld_exit(void) if (!libmap_disable) lm_fini(); lock_release(rtld_bind_lock, &lockstate); +} + +static void +rtld_nop_exit(void) +{ } /*