From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by sourceware.org (Postfix) with ESMTPS id 55C5D3870924 for ; Wed, 16 Dec 2020 13:27:46 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 55C5D3870924 Received: from noise.cbg.collabora.co.uk (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 1E0AA1F45653 for ; Wed, 16 Dec 2020 13:27:42 +0000 (GMT) From: =?UTF-8?q?Vivek=20Das=C2=A0Mohapatra?= To: libc-alpha Subject: [RFC][PATCH v7 01/20] Declare and describe the dlmopen RTLD_SHARED flag Date: Wed, 16 Dec 2020 13:26:31 +0000 Message-Id: <20201216132650.22949-2-vivek@collabora.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201216132650.22949-1-vivek@collabora.com> References: <20201216132650.22949-1-vivek@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-13.6 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Dec 2020 13:27:47 -0000 This flag will instruct dlmopen to create a shared object present in the main namespace and accessible from the selected namespace when supplied in the MODE argument. --- bits/dlfcn.h | 7 +++++++ sysdeps/mips/bits/dlfcn.h | 7 +++++++ 2 files changed, 14 insertions(+) diff --git a/bits/dlfcn.h b/bits/dlfcn.h index ed67f29bc3..9170059323 100644 --- a/bits/dlfcn.h +++ b/bits/dlfcn.h @@ -32,6 +32,13 @@ visible as if the object were linked directly into the program. */ #define RTLD_GLOBAL 0x00100 +/* If the following bit is set in the MODE argument to dlmopen + then the target object is loaded into the main namespace (if + it is not already there) and a shallow copy (proxy) is placed + in the target namespace: This allows multiple namespaces to + share a single instance of a DSO. */ +#define RTLD_SHARED 0x00080 + /* Unix98 demands the following flag which is the inverse to RTLD_GLOBAL. The implementation does this by default and so we can define the value to zero. */ diff --git a/sysdeps/mips/bits/dlfcn.h b/sysdeps/mips/bits/dlfcn.h index e55262f3aa..fc33fd184e 100644 --- a/sysdeps/mips/bits/dlfcn.h +++ b/sysdeps/mips/bits/dlfcn.h @@ -32,6 +32,13 @@ visible as if the object were linked directly into the program. */ #define RTLD_GLOBAL 0x0004 +/* If the following bit is set in the MODE argument to dlmopen + then the target object is loaded into the main namespace (if + it is not already there) and a shallow copy (proxy) is placed + in the target namespace: This allows multiple namespaces to + share a single instance of a DSO. */ +#define RTLD_SHARED 0x00020 + /* Unix98 demands the following flag which is the inverse to RTLD_GLOBAL. The implementation does this by default and so we can define the value to zero. */ -- 2.20.1