{"id":808891,"url":"http://patchwork.ozlabs.org/api/1.0/patches/808891/?format=json","project":{"id":41,"url":"http://patchwork.ozlabs.org/api/1.0/projects/41/?format=json","name":"GNU C Library","link_name":"glibc","list_id":"libc-alpha.sourceware.org","list_email":"libc-alpha@sourceware.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20170901180029.9527-30-hjl.tools@gmail.com>","date":"2017-09-01T18:00:00","name":"[29/58] Hide internal __mremap function [BZ #18822]","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"7c236d5ec2ff673af1e410b69b555a322463a8e1","submitter":{"id":4387,"url":"http://patchwork.ozlabs.org/api/1.0/people/4387/?format=json","name":"H.J. Lu","email":"hjl.tools@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/glibc/patch/20170901180029.9527-30-hjl.tools@gmail.com/mbox/","series":[{"id":1088,"url":"http://patchwork.ozlabs.org/api/1.0/series/1088/?format=json","date":"2017-09-01T18:00:21","name":"Hide internal functions in libc.so","version":1,"mbox":"http://patchwork.ozlabs.org/series/1088/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/808891/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list libc-alpha@sourceware.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=sourceware.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=libc-alpha-return-84082-incoming=patchwork.ozlabs.org@sourceware.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tsecure) header.d=sourceware.org header.i=@sourceware.org\n\theader.b=\"Rnondah4\"; dkim-atps=neutral","sourceware.org; auth=none"],"Received":["from sourceware.org (server1.sourceware.org [209.132.180.131])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xkRzD56mtz9s3w\n\tfor ;\n\tSat, 2 Sep 2017 04:07:20 +1000 (AEST)","(qmail 88337 invoked by alias); 1 Sep 2017 18:01:06 -0000","(qmail 88310 invoked by uid 89); 1 Sep 2017 18:01:06 -0000"],"DomainKey-Signature":"a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:from:to:subject:date:message-id:in-reply-to\n\t:references; q=dns; s=default; b=jO83jlVzWYIbLVxVXljysLpiUrutCPf\n\tzAd6D0soX+7MB51M8gxXY9KtGql9IMacKO4tfOHCFxYkTTNFlkGeePFBj6gtrepl\n\tK6cLfDCMym1lOg+JgZVDi4knnT66hYltc/n1b/EY6xXw5YRFmEwW+Aj1GsCrg/r/\n\tDpmxAIUxuPso=","DKIM-Signature":"v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:from:to:subject:date:message-id:in-reply-to\n\t:references; s=default; bh=tMw70BlO44BYe6frVolMD8p031o=; b=Rnond\n\tah4OGXg3crOxgtK0+fpk8dmEaJNtbZCO7cqunyIa4H1KjV7lWwMyvSoFv5khmUcg\n\tL/3nq7IcayK2N2Acc+pnlbRSEArIVYS8LA85Gd8h8w696I7+SAUZD3n+9ulbStED\n\tC1fe5siiYfar3sYtjLO5/l+fGZjSQZQQ7haCWU=","Mailing-List":"contact libc-alpha-help@sourceware.org; run by ezmlm","Precedence":"bulk","List-Id":"","List-Unsubscribe":"","List-Subscribe":"","List-Archive":"","List-Post":"","List-Help":",\n\t","Sender":"libc-alpha-owner@sourceware.org","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-26.2 required=5.0 tests=BAYES_00,\n\tFREEMAIL_FROM, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2,\n\tGIT_PATCH_3, SPF_SOFTFAIL autolearn=ham version=3.3.2\n\tspammy=Hx-languages-length:1308, H*m:gmail","X-HELO":"mga02.intel.com","X-ExtLoop1":"1","From":"\"H.J. Lu\" ","To":"libc-alpha@sourceware.org","Subject":"[PATCH 29/58] Hide internal __mremap function [BZ #18822]","Date":"Fri, 1 Sep 2017 11:00:00 -0700","Message-Id":"<20170901180029.9527-30-hjl.tools@gmail.com>","In-Reply-To":"<20170901180029.9527-1-hjl.tools@gmail.com>","References":"<20170901180029.9527-1-hjl.tools@gmail.com>"},"content":"Hide internal __mremap function to allow direct access within libc.so and\nlibc.a without using GOT nor PLT.\n\n__GI___mremap is defined when sysdeps/unix/syscalls.list is used to\ngenerate mremap. Otherwise libc_hidden_def is needed explicitly.\n\n\t[BZ #18822]\n\t* include/sys/mman.h (__mremap): Add libc_hidden_proto.\n\t* sysdeps/unix/sysv/linux/m68k/mremap.S (__mremap): Add\n\tlibc_hidden_def.\n---\n include/sys/mman.h | 1 +\n sysdeps/unix/sysv/linux/m68k/mremap.S | 1 +\n 2 files changed, 2 insertions(+)","diff":"diff --git a/include/sys/mman.h b/include/sys/mman.h\nindex 8b996fce73..503edaae88 100644\n--- a/include/sys/mman.h\n+++ b/include/sys/mman.h\n@@ -20,6 +20,7 @@ libc_hidden_proto (__madvise)\n /* This one is Linux specific. */\n extern void *__mremap (void *__addr, size_t __old_len,\n \t\t size_t __new_len, int __flags, ...);\n+libc_hidden_proto (__mremap)\n \n # if IS_IN (rtld)\n # include \ndiff --git a/sysdeps/unix/sysv/linux/m68k/mremap.S b/sysdeps/unix/sysv/linux/m68k/mremap.S\nindex 01be848f45..5cb7c1b132 100644\n--- a/sysdeps/unix/sysv/linux/m68k/mremap.S\n+++ b/sysdeps/unix/sysv/linux/m68k/mremap.S\n@@ -25,4 +25,5 @@ PSEUDO (__mremap, mremap, 5)\n \tmove.l %d0, %a0\n \trts\n PSEUDO_END (__mremap)\n+libc_hidden_def (__mremap)\n weak_alias (__mremap, mremap)\n","prefixes":["29/58"]}