{"id":808897,"url":"http://patchwork.ozlabs.org/api/1.0/patches/808897/?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":"<20170901180029.9527-31-hjl.tools@gmail.com>","date":"2017-09-01T18:00:01","name":"[30/58] Hide __posix_spawn_file_actions_realloc/__spawni [BZ #18822]","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"6839e24810ccf9a9b217f748e4616e59b4bea87d","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/20170901180029.9527-31-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/808897/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-84085-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=\"op4gvNHj\"; 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 3xkRzl6mPyz9s3w\n\tfor ;\n\tSat, 2 Sep 2017 04:07:47 +1000 (AEST)","(qmail 88883 invoked by alias); 1 Sep 2017 18:01:10 -0000","(qmail 88826 invoked by uid 89); 1 Sep 2017 18:01:10 -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=HIcGPvIQW2HvP2pC6t4S+kaIX91HXb9\n\t/B23vyhMeTTpK30Ts1vjVz66b6dUft4wU0aWvq60uAAa4qCD2rKOq63QhzBHI1xS\n\tbJFR+fcI2rkOAbBpZI6b7wHPQAqU/7tw3l8t1u1isC5yPpeChDgJV1msF/uwvNdP\n\tJ4NO1JRdbOZs=","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=3c2KqEJYFH2Qu0u96DXzcBaOytg=; b=op4gv\n\tNHjvnwOFemjo5aHRw5migekksDDxyjiVVrooPDmONvINmi+akEeIhn/jvfnOMPy7\n\tsL7RaqN7JUwlhsXKoKv08nVQTZCNlOPYeALG+zJ8nhwWAiOlcmhMMpSnR731XzrQ\n\tbuQ8I7KE9Dwwitb8JfEbEwy9Bao0fRBIvoTqcI=","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,\n\tSPF_SOFTFAIL autolearn=ham version=3.3.2 spammy=H*m:gmail","X-HELO":"mga02.intel.com","X-ExtLoop1":"1","From":"\"H.J. Lu\" ","To":"libc-alpha@sourceware.org","Subject":"[PATCH 30/58] Hide __posix_spawn_file_actions_realloc/__spawni [BZ\n\t#18822]","Date":"Fri, 1 Sep 2017 11:00:01 -0700","Message-Id":"<20170901180029.9527-31-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 __posix_spawn_file_actions_realloc and /__spawni functions\nto allow direct access within libc.so and libc.a without using GOT nor\nPLT.\n\n\t[BZ #18822]\n\t* posix/spawn_int.h (__posix_spawn_file_actions_realloc): Add\n\tattribute_hidden.\n\t(__spawni): Likewise.\n---\n posix/spawn_int.h | 5 +++--\n 1 file changed, 3 insertions(+), 2 deletions(-)","diff":"diff --git a/posix/spawn_int.h b/posix/spawn_int.h\nindex 6ada827f55..01bf603e27 100644\n--- a/posix/spawn_int.h\n+++ b/posix/spawn_int.h\n@@ -57,12 +57,13 @@ struct __spawn_action\n #define SPAWN_XFLAGS_TRY_SHELL\t0x2\n \n extern int __posix_spawn_file_actions_realloc (posix_spawn_file_actions_t *\n-\t\t\t\t\t file_actions);\n+\t\t\t\t\t file_actions)\n+ attribute_hidden;\n \n extern int __spawni (pid_t *pid, const char *path,\n \t\t const posix_spawn_file_actions_t *file_actions,\n \t\t const posix_spawnattr_t *attrp, char *const argv[],\n-\t\t char *const envp[], int xflags);\n+\t\t char *const envp[], int xflags) attribute_hidden;\n \n /* Return true if FD falls into the range valid for file descriptors.\n The check in this form is mandated by POSIX. */\n","prefixes":["30/58"]}