Message ID | 20210209171839.7911-9-vivek@collabora.com |
---|---|
State | Superseded |
Delegated to: | Adhemerval Zanella Netto |
Headers |
Return-Path: <libc-alpha-bounces@sourceware.org> 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 6A27D3973007; Tue, 9 Feb 2021 17:18:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6A27D3973007 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1612891133; bh=G1lhgmDcQpQOsitZQ2H9XaANSTkgR9dgW1bbuTt2hu8=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=BCqte5ijwPJDtq3pON145yIVxb3/Q69BAK1e0KF2W35J7pwXY3yK8KJZRJu3Tag0t FVbcJXNpo4Ocvrn0ufXE8dI0B4HD+QAuLx/T1t9+kQp7qpRCNkIA1zQnpvs1ztL6Qx xBCgcz/ixaeVZjnGI+nbvrjRYVRyyRkBd/Rkf7W4= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by sourceware.org (Postfix) with ESMTPS id 0CC82395543B for <libc-alpha@sourceware.org>; Tue, 9 Feb 2021 17:18:49 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 0CC82395543B Received: from noise.lan (unknown [IPv6:2001:4d48:ad5c:ef00:8e70:5aff:fe59:c29c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: vivek) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 3EBB41F451DD for <libc-alpha@sourceware.org>; Tue, 9 Feb 2021 17:18:46 +0000 (GMT) To: libc-alpha@sourceware.org Subject: [RFC][PATCH v8 08/20] elf/dl-open.c: when creating a proxy check the libc_map in NS 0 Date: Tue, 9 Feb 2021 17:18:27 +0000 Message-Id: <20210209171839.7911-9-vivek@collabora.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210209171839.7911-1-vivek@collabora.com> References: <20210209171839.7911-1-vivek@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-13.3 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, KAM_NUMSUBJECT, SPF_HELO_PASS, 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 <libc-alpha.sourceware.org> List-Unsubscribe: <https://sourceware.org/mailman/options/libc-alpha>, <mailto:libc-alpha-request@sourceware.org?subject=unsubscribe> List-Archive: <https://sourceware.org/pipermail/libc-alpha/> List-Post: <mailto:libc-alpha@sourceware.org> List-Help: <mailto:libc-alpha-request@sourceware.org?subject=help> List-Subscribe: <https://sourceware.org/mailman/listinfo/libc-alpha>, <mailto:libc-alpha-request@sourceware.org?subject=subscribe> From: =?utf-8?q?Vivek_Das=C2=A0Mohapatra_via_Libc-alpha?= <libc-alpha@sourceware.org> Reply-To: =?utf-8?q?Vivek_Das=C2=A0Mohapatra?= <vivek@collabora.com> Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" <libc-alpha-bounces@sourceware.org> |
Series |
Implementation of RTLD_SHARED for dlmopen
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Commit Message
Vivek Dasmohapatra
Feb. 9, 2021, 5:18 p.m. UTC
The libc_already_loaded check normally considers the libc_map entry in GL(dl_ns)[args->nsid].libc_map. This is not correct for proxies, which use the libc_map from the default namespace (as proxies are dummy entries that point to the base namespace via their l_real members). --- elf/dl-open.c | 1 + 1 file changed, 1 insertion(+)
Comments
On 09/02/2021 14:18, Vivek Das Mohapatra via Libc-alpha wrote: > The libc_already_loaded check normally considers the libc_map entry > in GL(dl_ns)[args->nsid].libc_map. > > This is not correct for proxies, which use the libc_map from > the default namespace (as proxies are dummy entries that point > to the base namespace via their l_real members). > --- > elf/dl-open.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/elf/dl-open.c b/elf/dl-open.c > index dc4b386559..096aa4c680 100644 > --- a/elf/dl-open.c > +++ b/elf/dl-open.c > @@ -568,6 +568,7 @@ dl_open_worker (void *a) > { > proxy_ns = args->nsid; > args->nsid = LM_ID_BASE; > + args->libc_already_loaded = GL(dl_ns)[LM_ID_BASE].libc_map != NULL; > } > > /* It was already open. */ > Ok.
diff --git a/elf/dl-open.c b/elf/dl-open.c index dc4b386559..096aa4c680 100644 --- a/elf/dl-open.c +++ b/elf/dl-open.c @@ -568,6 +568,7 @@ dl_open_worker (void *a) { proxy_ns = args->nsid; args->nsid = LM_ID_BASE; + args->libc_already_loaded = GL(dl_ns)[LM_ID_BASE].libc_map != NULL; } /* It was already open. */