From patchwork Fri Apr 16 09:20:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Weimer X-Patchwork-Id: 42988 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 91169389041A; Fri, 16 Apr 2021 09:20:35 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 91169389041A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1618564835; bh=9B/K9hu0kk5Osu0kGzpXiuuJaRpOWx7vgazYUBoEaQE=; h=To:Subject:In-Reply-To:References:Date:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=XoUsiKOspvOGgtfZpqYmNTme7nqGTm/iVKuY+Y8w/SsZ2aa/aGHC1fkwc6uGagRJn 08KMFfhZkThp7LCi7rh+3WZmLEAyJThNuUPUYN4YwMicGIWMIrrRH5UACO6NVq6C1W 0PizQG4Lqi3p7Ix11quC02N+mgsTUidlYOBiHtbU= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by sourceware.org (Postfix) with ESMTP id 02CF1389041A for ; Fri, 16 Apr 2021 09:20:25 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 02CF1389041A Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-389-MQYJB68iNHG-p_9k2_al5g-1; Fri, 16 Apr 2021 05:20:22 -0400 X-MC-Unique: MQYJB68iNHG-p_9k2_al5g-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C9CDC10054F6 for ; Fri, 16 Apr 2021 09:20:21 +0000 (UTC) Received: from oldenburg.str.redhat.com (ovpn-113-139.ams2.redhat.com [10.36.113.139]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 89D3E5C626 for ; Fri, 16 Apr 2021 09:20:20 +0000 (UTC) To: libc-alpha@sourceware.org Subject: [PATCH v4 05/37] nptl: Remove longjmp, siglongjmp from libpthread In-Reply-To: References: Message-Id: <50f98b68745e97127c6df91d4fb1f5a191e8a4c8.1618564630.git.fweimer@redhat.com> Date: Fri, 16 Apr 2021 11:20:38 +0200 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-12.4 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Florian Weimer via Libc-alpha From: Florian Weimer Reply-To: Florian Weimer Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" The definitions in libc are sufficient, the forwarders are no longer needed. The symbols have been moved using scripts/move-symbol-to-libc.py. s390-linux-gnu and s390x-linux-gnu need a new version placeholder to keep the GLIBC_2.19 symbol version in libpthread. Tested on i386-linux-gnu, powerpc64le-linux-gnu, s390x-linux-gnu, x86_64-linux-gnu. Built with build-many-glibcs.py. Reviewed-by: Adhemerval Zanella --- nptl/Makefile | 1 - nptl/Versions | 2 - nptl/pt-longjmp.c | 49 ------------- .../sysv/linux/aarch64/libpthread.abilist | 2 - .../unix/sysv/linux/alpha/libpthread.abilist | 2 - .../unix/sysv/linux/arm/be/libpthread.abilist | 2 - .../unix/sysv/linux/arm/le/libpthread.abilist | 2 - .../unix/sysv/linux/hppa/libpthread.abilist | 2 - .../unix/sysv/linux/i386/libpthread.abilist | 2 - .../unix/sysv/linux/ia64/libpthread.abilist | 2 - .../linux/m68k/coldfire/libpthread.abilist | 2 - .../sysv/linux/m68k/m680x0/libpthread.abilist | 2 - .../linux/microblaze/be/libpthread.abilist | 2 - .../linux/microblaze/le/libpthread.abilist | 2 - .../sysv/linux/mips/mips32/libpthread.abilist | 2 - .../sysv/linux/mips/mips64/libpthread.abilist | 2 - .../unix/sysv/linux/nios2/libpthread.abilist | 2 - .../powerpc/powerpc32/libpthread.abilist | 4 -- .../powerpc/powerpc64/be/libpthread.abilist | 4 -- .../powerpc/powerpc64/le/libpthread.abilist | 2 - sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c | 61 ---------------- sysdeps/unix/sysv/linux/s390/Versions | 2 +- .../unix/sysv/linux/s390/libpthread-compat.c | 25 +++++++ sysdeps/unix/sysv/linux/s390/pt-longjmp.c | 33 --------- .../linux/s390/s390-32/libpthread.abilist | 5 +- .../linux/s390/s390-64/libpthread.abilist | 5 +- .../unix/sysv/linux/sh/be/libpthread.abilist | 2 - .../unix/sysv/linux/sh/le/libpthread.abilist | 2 - .../linux/sparc/sparc32/libpthread.abilist | 2 - .../linux/sparc/sparc64/libpthread.abilist | 2 - .../sysv/linux/x86_64/64/libpthread.abilist | 2 - .../sysv/linux/x86_64/x32/libpthread.abilist | 2 - sysdeps/x86/nptl/pt-longjmp.c | 71 ------------------- 33 files changed, 28 insertions(+), 276 deletions(-) delete mode 100644 nptl/pt-longjmp.c delete mode 100644 sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c create mode 100644 sysdeps/unix/sysv/linux/s390/libpthread-compat.c delete mode 100644 sysdeps/unix/sysv/linux/s390/pt-longjmp.c delete mode 100644 sysdeps/x86/nptl/pt-longjmp.c diff --git a/nptl/Makefile b/nptl/Makefile index 815280e954..e1313124a9 100644 --- a/nptl/Makefile +++ b/nptl/Makefile @@ -102,7 +102,6 @@ libpthread-routines = \ old_pthread_cond_wait \ pt-cleanup \ pt-interp \ - pt-longjmp \ pthread_attr_getaffinity \ pthread_attr_getguardsize \ pthread_attr_getstack \ diff --git a/nptl/Versions b/nptl/Versions index deba8ce214..67a49bd3c4 100644 --- a/nptl/Versions +++ b/nptl/Versions @@ -140,7 +140,6 @@ libpthread { flockfile; ftrylockfile; funlockfile; - longjmp; pthread_atfork; pthread_cancel; pthread_cond_broadcast; @@ -176,7 +175,6 @@ libpthread { sem_post; sem_trywait; sem_wait; - siglongjmp; } GLIBC_2.1 { diff --git a/nptl/pt-longjmp.c b/nptl/pt-longjmp.c deleted file mode 100644 index 3f903495dc..0000000000 --- a/nptl/pt-longjmp.c +++ /dev/null @@ -1,49 +0,0 @@ -/* ABI compatibility for 'longjmp' and 'siglongjmp' symbols in libpthread ABI. - Copyright (C) 2002-2021 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include - -/* libpthread once had its own longjmp (and siglongjmp alias), though there - was no apparent reason for it. There is no use in having a separate - symbol in libpthread, but the historical ABI requires it. For static - linking, there is no need to provide anything here--the libc version - will be linked in. For shared library ABI compatibility, there must be - longjmp and siglongjmp symbols in libpthread.so. - - With an IFUNC resolver, it would be possible to avoid the indirection, - but the IFUNC resolver might run before the __libc_longjmp symbol has - been relocated, in which case the IFUNC resolver would not be able to - provide the correct address. */ - -#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_22) - -static void __attribute__ ((noreturn, used)) -longjmp_compat (jmp_buf env, int val) -{ - __libc_longjmp (env, val); -} - -strong_alias (longjmp_compat, longjmp_alias) -compat_symbol (libpthread, longjmp_alias, longjmp, GLIBC_2_0); - -strong_alias (longjmp_alias, siglongjmp_alias) -compat_symbol (libpthread, siglongjmp_alias, siglongjmp, GLIBC_2_0); - -#endif diff --git a/sysdeps/unix/sysv/linux/aarch64/libpthread.abilist b/sysdeps/unix/sysv/linux/aarch64/libpthread.abilist index 8c0998b604..1af15835d7 100644 --- a/sysdeps/unix/sysv/linux/aarch64/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/aarch64/libpthread.abilist @@ -31,7 +31,6 @@ GLIBC_2.17 __res_state F GLIBC_2.17 flockfile F GLIBC_2.17 ftrylockfile F GLIBC_2.17 funlockfile F -GLIBC_2.17 longjmp F GLIBC_2.17 pthread_attr_getaffinity_np F GLIBC_2.17 pthread_attr_getguardsize F GLIBC_2.17 pthread_attr_getstack F @@ -135,7 +134,6 @@ GLIBC_2.17 sem_timedwait F GLIBC_2.17 sem_trywait F GLIBC_2.17 sem_unlink F GLIBC_2.17 sem_wait F -GLIBC_2.17 siglongjmp F GLIBC_2.18 pthread_getattr_default_np F GLIBC_2.18 pthread_setattr_default_np F GLIBC_2.28 call_once F diff --git a/sysdeps/unix/sysv/linux/alpha/libpthread.abilist b/sysdeps/unix/sysv/linux/alpha/libpthread.abilist index 9012403bb4..cb89cb21d1 100644 --- a/sysdeps/unix/sysv/linux/alpha/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/alpha/libpthread.abilist @@ -18,7 +18,6 @@ GLIBC_2.0 __pthread_setspecific F GLIBC_2.0 flockfile F GLIBC_2.0 ftrylockfile F GLIBC_2.0 funlockfile F -GLIBC_2.0 longjmp F GLIBC_2.0 pthread_atfork F GLIBC_2.0 pthread_cancel F GLIBC_2.0 pthread_cond_broadcast F @@ -53,7 +52,6 @@ GLIBC_2.0 sem_init F GLIBC_2.0 sem_post F GLIBC_2.0 sem_trywait F GLIBC_2.0 sem_wait F -GLIBC_2.0 siglongjmp F GLIBC_2.1 pthread_attr_getguardsize F GLIBC_2.1 pthread_attr_getstackaddr F GLIBC_2.1 pthread_attr_getstacksize F diff --git a/sysdeps/unix/sysv/linux/arm/be/libpthread.abilist b/sysdeps/unix/sysv/linux/arm/be/libpthread.abilist index 3816362b67..7eeb4433a9 100644 --- a/sysdeps/unix/sysv/linux/arm/be/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/arm/be/libpthread.abilist @@ -65,7 +65,6 @@ GLIBC_2.4 __res_state F GLIBC_2.4 flockfile F GLIBC_2.4 ftrylockfile F GLIBC_2.4 funlockfile F -GLIBC_2.4 longjmp F GLIBC_2.4 pthread_attr_getaffinity_np F GLIBC_2.4 pthread_attr_getguardsize F GLIBC_2.4 pthread_attr_getstack F @@ -164,4 +163,3 @@ GLIBC_2.4 sem_timedwait F GLIBC_2.4 sem_trywait F GLIBC_2.4 sem_unlink F GLIBC_2.4 sem_wait F -GLIBC_2.4 siglongjmp F diff --git a/sysdeps/unix/sysv/linux/arm/le/libpthread.abilist b/sysdeps/unix/sysv/linux/arm/le/libpthread.abilist index 3816362b67..7eeb4433a9 100644 --- a/sysdeps/unix/sysv/linux/arm/le/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/arm/le/libpthread.abilist @@ -65,7 +65,6 @@ GLIBC_2.4 __res_state F GLIBC_2.4 flockfile F GLIBC_2.4 ftrylockfile F GLIBC_2.4 funlockfile F -GLIBC_2.4 longjmp F GLIBC_2.4 pthread_attr_getaffinity_np F GLIBC_2.4 pthread_attr_getguardsize F GLIBC_2.4 pthread_attr_getstack F @@ -164,4 +163,3 @@ GLIBC_2.4 sem_timedwait F GLIBC_2.4 sem_trywait F GLIBC_2.4 sem_unlink F GLIBC_2.4 sem_wait F -GLIBC_2.4 siglongjmp F diff --git a/sysdeps/unix/sysv/linux/hppa/libpthread.abilist b/sysdeps/unix/sysv/linux/hppa/libpthread.abilist index c318914fd0..709a3065c7 100644 --- a/sysdeps/unix/sysv/linux/hppa/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/hppa/libpthread.abilist @@ -33,7 +33,6 @@ GLIBC_2.2 __res_state F GLIBC_2.2 flockfile F GLIBC_2.2 ftrylockfile F GLIBC_2.2 funlockfile F -GLIBC_2.2 longjmp F GLIBC_2.2 pthread_atfork F GLIBC_2.2 pthread_attr_getguardsize F GLIBC_2.2 pthread_attr_getstack F @@ -117,7 +116,6 @@ GLIBC_2.2 sem_timedwait F GLIBC_2.2 sem_trywait F GLIBC_2.2 sem_unlink F GLIBC_2.2 sem_wait F -GLIBC_2.2 siglongjmp F GLIBC_2.2.3 __libpthread_version_placeholder F GLIBC_2.2.6 __libpthread_version_placeholder F GLIBC_2.28 call_once F diff --git a/sysdeps/unix/sysv/linux/i386/libpthread.abilist b/sysdeps/unix/sysv/linux/i386/libpthread.abilist index 7d9a297944..f18fce9353 100644 --- a/sysdeps/unix/sysv/linux/i386/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/i386/libpthread.abilist @@ -18,7 +18,6 @@ GLIBC_2.0 __pthread_setspecific F GLIBC_2.0 flockfile F GLIBC_2.0 ftrylockfile F GLIBC_2.0 funlockfile F -GLIBC_2.0 longjmp F GLIBC_2.0 pthread_atfork F GLIBC_2.0 pthread_cancel F GLIBC_2.0 pthread_cond_broadcast F @@ -53,7 +52,6 @@ GLIBC_2.0 sem_init F GLIBC_2.0 sem_post F GLIBC_2.0 sem_trywait F GLIBC_2.0 sem_wait F -GLIBC_2.0 siglongjmp F GLIBC_2.1 pthread_attr_getguardsize F GLIBC_2.1 pthread_attr_getstackaddr F GLIBC_2.1 pthread_attr_getstacksize F diff --git a/sysdeps/unix/sysv/linux/ia64/libpthread.abilist b/sysdeps/unix/sysv/linux/ia64/libpthread.abilist index f90d9485f9..dcbcfddae2 100644 --- a/sysdeps/unix/sysv/linux/ia64/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/ia64/libpthread.abilist @@ -33,7 +33,6 @@ GLIBC_2.2 __res_state F GLIBC_2.2 flockfile F GLIBC_2.2 ftrylockfile F GLIBC_2.2 funlockfile F -GLIBC_2.2 longjmp F GLIBC_2.2 pthread_atfork F GLIBC_2.2 pthread_attr_getguardsize F GLIBC_2.2 pthread_attr_getstack F @@ -117,7 +116,6 @@ GLIBC_2.2 sem_timedwait F GLIBC_2.2 sem_trywait F GLIBC_2.2 sem_unlink F GLIBC_2.2 sem_wait F -GLIBC_2.2 siglongjmp F GLIBC_2.2.3 __libpthread_version_placeholder F GLIBC_2.2.6 __libpthread_version_placeholder F GLIBC_2.28 call_once F diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist index 3816362b67..7eeb4433a9 100644 --- a/sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist @@ -65,7 +65,6 @@ GLIBC_2.4 __res_state F GLIBC_2.4 flockfile F GLIBC_2.4 ftrylockfile F GLIBC_2.4 funlockfile F -GLIBC_2.4 longjmp F GLIBC_2.4 pthread_attr_getaffinity_np F GLIBC_2.4 pthread_attr_getguardsize F GLIBC_2.4 pthread_attr_getstack F @@ -164,4 +163,3 @@ GLIBC_2.4 sem_timedwait F GLIBC_2.4 sem_trywait F GLIBC_2.4 sem_unlink F GLIBC_2.4 sem_wait F -GLIBC_2.4 siglongjmp F diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist index 7d9a297944..f18fce9353 100644 --- a/sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist @@ -18,7 +18,6 @@ GLIBC_2.0 __pthread_setspecific F GLIBC_2.0 flockfile F GLIBC_2.0 ftrylockfile F GLIBC_2.0 funlockfile F -GLIBC_2.0 longjmp F GLIBC_2.0 pthread_atfork F GLIBC_2.0 pthread_cancel F GLIBC_2.0 pthread_cond_broadcast F @@ -53,7 +52,6 @@ GLIBC_2.0 sem_init F GLIBC_2.0 sem_post F GLIBC_2.0 sem_trywait F GLIBC_2.0 sem_wait F -GLIBC_2.0 siglongjmp F GLIBC_2.1 pthread_attr_getguardsize F GLIBC_2.1 pthread_attr_getstackaddr F GLIBC_2.1 pthread_attr_getstacksize F diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libpthread.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libpthread.abilist index 36cf3da483..5dc126db6f 100644 --- a/sysdeps/unix/sysv/linux/microblaze/be/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/be/libpthread.abilist @@ -31,7 +31,6 @@ GLIBC_2.18 __res_state F GLIBC_2.18 flockfile F GLIBC_2.18 ftrylockfile F GLIBC_2.18 funlockfile F -GLIBC_2.18 longjmp F GLIBC_2.18 pthread_attr_getaffinity_np F GLIBC_2.18 pthread_attr_getguardsize F GLIBC_2.18 pthread_attr_getstack F @@ -137,7 +136,6 @@ GLIBC_2.18 sem_timedwait F GLIBC_2.18 sem_trywait F GLIBC_2.18 sem_unlink F GLIBC_2.18 sem_wait F -GLIBC_2.18 siglongjmp F GLIBC_2.28 call_once F GLIBC_2.28 cnd_broadcast F GLIBC_2.28 cnd_destroy F diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libpthread.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libpthread.abilist index 36cf3da483..5dc126db6f 100644 --- a/sysdeps/unix/sysv/linux/microblaze/le/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/le/libpthread.abilist @@ -31,7 +31,6 @@ GLIBC_2.18 __res_state F GLIBC_2.18 flockfile F GLIBC_2.18 ftrylockfile F GLIBC_2.18 funlockfile F -GLIBC_2.18 longjmp F GLIBC_2.18 pthread_attr_getaffinity_np F GLIBC_2.18 pthread_attr_getguardsize F GLIBC_2.18 pthread_attr_getstack F @@ -137,7 +136,6 @@ GLIBC_2.18 sem_timedwait F GLIBC_2.18 sem_trywait F GLIBC_2.18 sem_unlink F GLIBC_2.18 sem_wait F -GLIBC_2.18 siglongjmp F GLIBC_2.28 call_once F GLIBC_2.28 cnd_broadcast F GLIBC_2.28 cnd_destroy F diff --git a/sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist b/sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist index f4dff3d066..ac5fd281e9 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist @@ -18,7 +18,6 @@ GLIBC_2.0 __pthread_setspecific F GLIBC_2.0 flockfile F GLIBC_2.0 ftrylockfile F GLIBC_2.0 funlockfile F -GLIBC_2.0 longjmp F GLIBC_2.0 pthread_atfork F GLIBC_2.0 pthread_cancel F GLIBC_2.0 pthread_cond_broadcast F @@ -53,7 +52,6 @@ GLIBC_2.0 sem_init F GLIBC_2.0 sem_post F GLIBC_2.0 sem_trywait F GLIBC_2.0 sem_wait F -GLIBC_2.0 siglongjmp F GLIBC_2.11 pthread_sigqueue F GLIBC_2.12 pthread_getname_np F GLIBC_2.12 pthread_mutexattr_getrobust F diff --git a/sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist b/sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist index f4dff3d066..ac5fd281e9 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist @@ -18,7 +18,6 @@ GLIBC_2.0 __pthread_setspecific F GLIBC_2.0 flockfile F GLIBC_2.0 ftrylockfile F GLIBC_2.0 funlockfile F -GLIBC_2.0 longjmp F GLIBC_2.0 pthread_atfork F GLIBC_2.0 pthread_cancel F GLIBC_2.0 pthread_cond_broadcast F @@ -53,7 +52,6 @@ GLIBC_2.0 sem_init F GLIBC_2.0 sem_post F GLIBC_2.0 sem_trywait F GLIBC_2.0 sem_wait F -GLIBC_2.0 siglongjmp F GLIBC_2.11 pthread_sigqueue F GLIBC_2.12 pthread_getname_np F GLIBC_2.12 pthread_mutexattr_getrobust F diff --git a/sysdeps/unix/sysv/linux/nios2/libpthread.abilist b/sysdeps/unix/sysv/linux/nios2/libpthread.abilist index 609770af99..c29e86eb94 100644 --- a/sysdeps/unix/sysv/linux/nios2/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/nios2/libpthread.abilist @@ -31,7 +31,6 @@ GLIBC_2.21 __res_state F GLIBC_2.21 flockfile F GLIBC_2.21 ftrylockfile F GLIBC_2.21 funlockfile F -GLIBC_2.21 longjmp F GLIBC_2.21 pthread_attr_getaffinity_np F GLIBC_2.21 pthread_attr_getguardsize F GLIBC_2.21 pthread_attr_getstack F @@ -137,7 +136,6 @@ GLIBC_2.21 sem_timedwait F GLIBC_2.21 sem_trywait F GLIBC_2.21 sem_unlink F GLIBC_2.21 sem_wait F -GLIBC_2.21 siglongjmp F GLIBC_2.28 call_once F GLIBC_2.28 cnd_broadcast F GLIBC_2.28 cnd_destroy F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist index 9b3042e56a..5834972a63 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist @@ -18,7 +18,6 @@ GLIBC_2.0 __pthread_setspecific F GLIBC_2.0 flockfile F GLIBC_2.0 ftrylockfile F GLIBC_2.0 funlockfile F -GLIBC_2.0 longjmp F GLIBC_2.0 pthread_atfork F GLIBC_2.0 pthread_cancel F GLIBC_2.0 pthread_cond_broadcast F @@ -53,7 +52,6 @@ GLIBC_2.0 sem_init F GLIBC_2.0 sem_post F GLIBC_2.0 sem_trywait F GLIBC_2.0 sem_wait F -GLIBC_2.0 siglongjmp F GLIBC_2.1 pthread_attr_getguardsize F GLIBC_2.1 pthread_attr_getstackaddr F GLIBC_2.1 pthread_attr_getstacksize F @@ -165,11 +163,9 @@ GLIBC_2.3.3 pthread_condattr_setclock F GLIBC_2.3.3 pthread_setaffinity_np F GLIBC_2.3.3 pthread_timedjoin_np F GLIBC_2.3.3 pthread_tryjoin_np F -GLIBC_2.3.4 longjmp F GLIBC_2.3.4 pthread_attr_getaffinity_np F GLIBC_2.3.4 pthread_setaffinity_np F GLIBC_2.3.4 pthread_setschedprio F -GLIBC_2.3.4 siglongjmp F GLIBC_2.30 pthread_cond_clockwait F GLIBC_2.30 pthread_mutex_clocklock F GLIBC_2.30 pthread_rwlock_clockrdlock F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist index b08624dc72..4cccc15046 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist @@ -54,7 +54,6 @@ GLIBC_2.3 __res_state F GLIBC_2.3 flockfile F GLIBC_2.3 ftrylockfile F GLIBC_2.3 funlockfile F -GLIBC_2.3 longjmp F GLIBC_2.3 pthread_attr_getguardsize F GLIBC_2.3 pthread_attr_getstack F GLIBC_2.3 pthread_attr_getstackaddr F @@ -137,7 +136,6 @@ GLIBC_2.3 sem_timedwait F GLIBC_2.3 sem_trywait F GLIBC_2.3 sem_unlink F GLIBC_2.3 sem_wait F -GLIBC_2.3 siglongjmp F GLIBC_2.3.2 pthread_cond_broadcast F GLIBC_2.3.2 pthread_cond_signal F GLIBC_2.3.2 pthread_cond_timedwait F @@ -154,11 +152,9 @@ GLIBC_2.3.3 pthread_condattr_setclock F GLIBC_2.3.3 pthread_setaffinity_np F GLIBC_2.3.3 pthread_timedjoin_np F GLIBC_2.3.3 pthread_tryjoin_np F -GLIBC_2.3.4 longjmp F GLIBC_2.3.4 pthread_attr_getaffinity_np F GLIBC_2.3.4 pthread_setaffinity_np F GLIBC_2.3.4 pthread_setschedprio F -GLIBC_2.3.4 siglongjmp F GLIBC_2.30 pthread_cond_clockwait F GLIBC_2.30 pthread_mutex_clocklock F GLIBC_2.30 pthread_rwlock_clockrdlock F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist index 8c0998b604..1af15835d7 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist @@ -31,7 +31,6 @@ GLIBC_2.17 __res_state F GLIBC_2.17 flockfile F GLIBC_2.17 ftrylockfile F GLIBC_2.17 funlockfile F -GLIBC_2.17 longjmp F GLIBC_2.17 pthread_attr_getaffinity_np F GLIBC_2.17 pthread_attr_getguardsize F GLIBC_2.17 pthread_attr_getstack F @@ -135,7 +134,6 @@ GLIBC_2.17 sem_timedwait F GLIBC_2.17 sem_trywait F GLIBC_2.17 sem_unlink F GLIBC_2.17 sem_wait F -GLIBC_2.17 siglongjmp F GLIBC_2.18 pthread_getattr_default_np F GLIBC_2.18 pthread_setattr_default_np F GLIBC_2.28 call_once F diff --git a/sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c b/sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c deleted file mode 100644 index ed6b2a5db1..0000000000 --- a/sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c +++ /dev/null @@ -1,61 +0,0 @@ -/* Copyright (C) 2002-2021 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#include -#include "pthreadP.h" -#include -#if defined SHARED && SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3_4) - -/* These functions are not declared anywhere since they shouldn't be - used at another place but here. */ -extern void __novmx__libc_siglongjmp (sigjmp_buf env, int val) - __attribute__ ((noreturn)); -extern void __novmx__libc_longjmp (sigjmp_buf env, int val) - __attribute__ ((noreturn)); - - -void __novmx_siglongjmp (sigjmp_buf env, int val) -{ - __novmx__libc_siglongjmp (env, val); -} - -void __novmx_longjmp (jmp_buf env, int val) -{ - __novmx__libc_longjmp (env, val); -} - -compat_symbol (libpthread, __novmx_longjmp, longjmp, GLIBC_2_0); -compat_symbol (libpthread, __novmx_siglongjmp, siglongjmp, GLIBC_2_0); -#endif /* defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)) */ - -void -__vmx_longjmp (jmp_buf env, int val) -{ - __libc_longjmp (env, val); -} - -void -__vmx_siglongjmp (jmp_buf env, int val) -{ - __libc_siglongjmp (env, val); -} - -versioned_symbol (libpthread, __vmx_longjmp, longjmp, GLIBC_2_3_4); -versioned_symbol (libpthread, __vmx_siglongjmp, siglongjmp, GLIBC_2_3_4); diff --git a/sysdeps/unix/sysv/linux/s390/Versions b/sysdeps/unix/sysv/linux/s390/Versions index 55518a7e5f..548397fcff 100644 --- a/sysdeps/unix/sysv/linux/s390/Versions +++ b/sysdeps/unix/sysv/linux/s390/Versions @@ -11,6 +11,6 @@ libc { libpthread { GLIBC_2.19 { - longjmp; siglongjmp; + __libpthread_version_placeholder; } } diff --git a/sysdeps/unix/sysv/linux/s390/libpthread-compat.c b/sysdeps/unix/sysv/linux/s390/libpthread-compat.c new file mode 100644 index 0000000000..b4b989c8c5 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/libpthread-compat.c @@ -0,0 +1,25 @@ +/* Placeholder definitions to pull in removed symbol versions. s390 version. + Copyright (C) 2019-2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include + +/* GLIBC_2.19 was used by a longjmp compatibility symbol. */ +#if (SHLIB_COMPAT (libpthread, GLIBC_2_19, GLIBC_2_20)) +compat_symbol (libpthread, __libpthread_version_placeholder_1, + __libpthread_version_placeholder, GLIBC_2_19); +#endif diff --git a/sysdeps/unix/sysv/linux/s390/pt-longjmp.c b/sysdeps/unix/sysv/linux/s390/pt-longjmp.c deleted file mode 100644 index 6e97ed538b..0000000000 --- a/sysdeps/unix/sysv/linux/s390/pt-longjmp.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Copyright (C) 2014-2021 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . - - Versioned copy of nptl/pt-longjmp.c modified for versioning - the reverted jmpbuf extension. */ - -#include - -#include - -#if SHLIB_COMPAT (libpthread, GLIBC_2_19, GLIBC_2_20) -/* In glibc release 2.19 new versions of longjmp-functions were introduced, - but were reverted before 2.20. Thus both versions are the same function. */ - -strong_alias (longjmp_alias, __v2longjmp) -compat_symbol (libpthread, __v2longjmp, longjmp, GLIBC_2_19); -strong_alias (siglongjmp_alias, __v2siglongjmp) -compat_symbol (libpthread, __v2siglongjmp, siglongjmp, GLIBC_2_19); -#endif /* SHLIB_COMPAT (libpthread, GLIBC_2_19, GLIBC_2_20)) */ diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist index f3ec8e3bdb..16e2d902c5 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist @@ -18,7 +18,6 @@ GLIBC_2.0 __pthread_setspecific F GLIBC_2.0 flockfile F GLIBC_2.0 ftrylockfile F GLIBC_2.0 funlockfile F -GLIBC_2.0 longjmp F GLIBC_2.0 pthread_atfork F GLIBC_2.0 pthread_cancel F GLIBC_2.0 pthread_cond_broadcast F @@ -53,7 +52,6 @@ GLIBC_2.0 sem_init F GLIBC_2.0 sem_post F GLIBC_2.0 sem_trywait F GLIBC_2.0 sem_wait F -GLIBC_2.0 siglongjmp F GLIBC_2.1 pthread_attr_getguardsize F GLIBC_2.1 pthread_attr_getstackaddr F GLIBC_2.1 pthread_attr_getstacksize F @@ -95,8 +93,7 @@ GLIBC_2.12 pthread_mutexattr_setrobust F GLIBC_2.12 pthread_setname_np F GLIBC_2.18 pthread_getattr_default_np F GLIBC_2.18 pthread_setattr_default_np F -GLIBC_2.19 longjmp F -GLIBC_2.19 siglongjmp F +GLIBC_2.19 __libpthread_version_placeholder F GLIBC_2.2 __pthread_rwlock_destroy F GLIBC_2.2 __pthread_rwlock_init F GLIBC_2.2 __pthread_rwlock_rdlock F diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist index aa6c90757f..da88becd5e 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist @@ -5,8 +5,7 @@ GLIBC_2.12 pthread_mutexattr_setrobust F GLIBC_2.12 pthread_setname_np F GLIBC_2.18 pthread_getattr_default_np F GLIBC_2.18 pthread_setattr_default_np F -GLIBC_2.19 longjmp F -GLIBC_2.19 siglongjmp F +GLIBC_2.19 __libpthread_version_placeholder F GLIBC_2.2 _IO_flockfile F GLIBC_2.2 _IO_ftrylockfile F GLIBC_2.2 _IO_funlockfile F @@ -35,7 +34,6 @@ GLIBC_2.2 __res_state F GLIBC_2.2 flockfile F GLIBC_2.2 ftrylockfile F GLIBC_2.2 funlockfile F -GLIBC_2.2 longjmp F GLIBC_2.2 pthread_atfork F GLIBC_2.2 pthread_attr_getguardsize F GLIBC_2.2 pthread_attr_getstack F @@ -119,7 +117,6 @@ GLIBC_2.2 sem_timedwait F GLIBC_2.2 sem_trywait F GLIBC_2.2 sem_unlink F GLIBC_2.2 sem_wait F -GLIBC_2.2 siglongjmp F GLIBC_2.2.3 __libpthread_version_placeholder F GLIBC_2.2.6 __libpthread_version_placeholder F GLIBC_2.28 call_once F diff --git a/sysdeps/unix/sysv/linux/sh/be/libpthread.abilist b/sysdeps/unix/sysv/linux/sh/be/libpthread.abilist index c318914fd0..709a3065c7 100644 --- a/sysdeps/unix/sysv/linux/sh/be/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/sh/be/libpthread.abilist @@ -33,7 +33,6 @@ GLIBC_2.2 __res_state F GLIBC_2.2 flockfile F GLIBC_2.2 ftrylockfile F GLIBC_2.2 funlockfile F -GLIBC_2.2 longjmp F GLIBC_2.2 pthread_atfork F GLIBC_2.2 pthread_attr_getguardsize F GLIBC_2.2 pthread_attr_getstack F @@ -117,7 +116,6 @@ GLIBC_2.2 sem_timedwait F GLIBC_2.2 sem_trywait F GLIBC_2.2 sem_unlink F GLIBC_2.2 sem_wait F -GLIBC_2.2 siglongjmp F GLIBC_2.2.3 __libpthread_version_placeholder F GLIBC_2.2.6 __libpthread_version_placeholder F GLIBC_2.28 call_once F diff --git a/sysdeps/unix/sysv/linux/sh/le/libpthread.abilist b/sysdeps/unix/sysv/linux/sh/le/libpthread.abilist index c318914fd0..709a3065c7 100644 --- a/sysdeps/unix/sysv/linux/sh/le/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/sh/le/libpthread.abilist @@ -33,7 +33,6 @@ GLIBC_2.2 __res_state F GLIBC_2.2 flockfile F GLIBC_2.2 ftrylockfile F GLIBC_2.2 funlockfile F -GLIBC_2.2 longjmp F GLIBC_2.2 pthread_atfork F GLIBC_2.2 pthread_attr_getguardsize F GLIBC_2.2 pthread_attr_getstack F @@ -117,7 +116,6 @@ GLIBC_2.2 sem_timedwait F GLIBC_2.2 sem_trywait F GLIBC_2.2 sem_unlink F GLIBC_2.2 sem_wait F -GLIBC_2.2 siglongjmp F GLIBC_2.2.3 __libpthread_version_placeholder F GLIBC_2.2.6 __libpthread_version_placeholder F GLIBC_2.28 call_once F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist index 9012403bb4..cb89cb21d1 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist @@ -18,7 +18,6 @@ GLIBC_2.0 __pthread_setspecific F GLIBC_2.0 flockfile F GLIBC_2.0 ftrylockfile F GLIBC_2.0 funlockfile F -GLIBC_2.0 longjmp F GLIBC_2.0 pthread_atfork F GLIBC_2.0 pthread_cancel F GLIBC_2.0 pthread_cond_broadcast F @@ -53,7 +52,6 @@ GLIBC_2.0 sem_init F GLIBC_2.0 sem_post F GLIBC_2.0 sem_trywait F GLIBC_2.0 sem_wait F -GLIBC_2.0 siglongjmp F GLIBC_2.1 pthread_attr_getguardsize F GLIBC_2.1 pthread_attr_getstackaddr F GLIBC_2.1 pthread_attr_getstacksize F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist index f90d9485f9..dcbcfddae2 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist @@ -33,7 +33,6 @@ GLIBC_2.2 __res_state F GLIBC_2.2 flockfile F GLIBC_2.2 ftrylockfile F GLIBC_2.2 funlockfile F -GLIBC_2.2 longjmp F GLIBC_2.2 pthread_atfork F GLIBC_2.2 pthread_attr_getguardsize F GLIBC_2.2 pthread_attr_getstack F @@ -117,7 +116,6 @@ GLIBC_2.2 sem_timedwait F GLIBC_2.2 sem_trywait F GLIBC_2.2 sem_unlink F GLIBC_2.2 sem_wait F -GLIBC_2.2 siglongjmp F GLIBC_2.2.3 __libpthread_version_placeholder F GLIBC_2.2.6 __libpthread_version_placeholder F GLIBC_2.28 call_once F diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist index 8cd2b1bf5f..f1904bd31f 100644 --- a/sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist @@ -33,7 +33,6 @@ GLIBC_2.2.5 __res_state F GLIBC_2.2.5 flockfile F GLIBC_2.2.5 ftrylockfile F GLIBC_2.2.5 funlockfile F -GLIBC_2.2.5 longjmp F GLIBC_2.2.5 pthread_atfork F GLIBC_2.2.5 pthread_attr_getguardsize F GLIBC_2.2.5 pthread_attr_getstack F @@ -117,7 +116,6 @@ GLIBC_2.2.5 sem_timedwait F GLIBC_2.2.5 sem_trywait F GLIBC_2.2.5 sem_unlink F GLIBC_2.2.5 sem_wait F -GLIBC_2.2.5 siglongjmp F GLIBC_2.2.6 __libpthread_version_placeholder F GLIBC_2.28 call_once F GLIBC_2.28 cnd_broadcast F diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist index 84ae314f0f..302d7dc913 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist @@ -31,7 +31,6 @@ GLIBC_2.16 __res_state F GLIBC_2.16 flockfile F GLIBC_2.16 ftrylockfile F GLIBC_2.16 funlockfile F -GLIBC_2.16 longjmp F GLIBC_2.16 pthread_attr_getaffinity_np F GLIBC_2.16 pthread_attr_getguardsize F GLIBC_2.16 pthread_attr_getstack F @@ -135,7 +134,6 @@ GLIBC_2.16 sem_timedwait F GLIBC_2.16 sem_trywait F GLIBC_2.16 sem_unlink F GLIBC_2.16 sem_wait F -GLIBC_2.16 siglongjmp F GLIBC_2.18 pthread_getattr_default_np F GLIBC_2.18 pthread_setattr_default_np F GLIBC_2.28 call_once F diff --git a/sysdeps/x86/nptl/pt-longjmp.c b/sysdeps/x86/nptl/pt-longjmp.c deleted file mode 100644 index 77b32667ee..0000000000 --- a/sysdeps/x86/nptl/pt-longjmp.c +++ /dev/null @@ -1,71 +0,0 @@ -/* ABI compatibility for 'longjmp' and 'siglongjmp' symbols in libpthread ABI. - X86 version. - Copyright (C) 1918-2021 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include - -#ifdef __x86_64__ -# define SHADOW_STACK_POINTER_SIZE 8 -#else -# define SHADOW_STACK_POINTER_SIZE 4 -#endif - -/* Assert that the priv field in struct pthread_unwind_buf has space - to store shadow stack pointer. */ -_Static_assert ((offsetof (struct pthread_unwind_buf, priv) - <= SHADOW_STACK_POINTER_OFFSET) - && ((offsetof (struct pthread_unwind_buf, priv) - + sizeof (((struct pthread_unwind_buf *) 0)->priv)) - >= (SHADOW_STACK_POINTER_OFFSET - + SHADOW_STACK_POINTER_SIZE)), - "Shadow stack pointer is not within private storage " - "of pthread_unwind_buf."); - -#include - -/* libpthread once had its own longjmp (and siglongjmp alias), though there - was no apparent reason for it. There is no use in having a separate - symbol in libpthread, but the historical ABI requires it. For static - linking, there is no need to provide anything here--the libc version - will be linked in. For shared library ABI compatibility, there must be - longjmp and siglongjmp symbols in libpthread.so. - - With an IFUNC resolver, it would be possible to avoid the indirection, - but the IFUNC resolver might run before the __libc_longjmp symbol has - been relocated, in which case the IFUNC resolver would not be able to - provide the correct address. */ - -#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_22) - -static void __attribute__ ((noreturn, used)) -longjmp_compat (jmp_buf env, int val) -{ - /* NB: We call __libc_siglongjmp, instead of __libc_longjmp, since - __libc_longjmp is a private interface for cancellation which - doesn't restore shadow stack register. */ - __libc_siglongjmp (env, val); -} - -strong_alias (longjmp_compat, longjmp_alias) -compat_symbol (libpthread, longjmp_alias, longjmp, GLIBC_2_0); - -strong_alias (longjmp_alias, siglongjmp_alias) -compat_symbol (libpthread, siglongjmp_alias, siglongjmp, GLIBC_2_0); - -#endif