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GET /api/patches/807533/?format=api
{ "id": 807533, "url": "http://patchwork.ozlabs.org/api/patches/807533/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/a1959943-f196-da67-e391-3901ffe68d28@suse.cz/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<a1959943-f196-da67-e391-3901ffe68d28@suse.cz>", "list_archive_url": null, "date": "2017-08-30T09:45:21", "name": "[RFC] Make 4-stage PGO bootstrap really working", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "219cd79ceb719660b1ef84d57afe8f4acd906044", "submitter": { "id": 62010, "url": "http://patchwork.ozlabs.org/api/people/62010/?format=api", "name": "Martin Liška", "email": "mliska@suse.cz" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/a1959943-f196-da67-e391-3901ffe68d28@suse.cz/mbox/", "series": [ { "id": 562, "url": "http://patchwork.ozlabs.org/api/series/562/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=562", "date": "2017-08-30T09:45:21", "name": "[RFC] Make 4-stage PGO bootstrap really working", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/562/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/807533/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/807533/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-return-461144-incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "mailing list gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=gcc-patches-return-461144-incoming=patchwork.ozlabs.org@gcc.gnu.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org\n\theader.b=\"OzEnVhvN\"; 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 3xj0xR4rfcz9sNn\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 30 Aug 2017 19:45:45 +1000 (AEST)", "(qmail 2614 invoked by alias); 30 Aug 2017 09:45:36 -0000", "(qmail 2182 invoked by uid 89); 30 Aug 2017 09:45:27 -0000", "from mx2.suse.de (HELO mx1.suse.de) (195.135.220.15) by\n\tsourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP;\n\tWed, 30 Aug 2017 09:45:25 +0000", "from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254])\tby\n\tmx1.suse.de (Postfix) with ESMTP id A70A5ABBC;\n\tWed, 30 Aug 2017 09:45:21 +0000 (UTC)" ], "DomainKey-Signature": "a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id\n\t:list-unsubscribe:list-archive:list-post:list-help:sender\n\t:subject:to:cc:references:from:message-id:date:mime-version\n\t:in-reply-to:content-type; q=dns; s=default; b=BpEcKXfrt/fXjmY+q\n\ttw3mP7JgIqZj91MdzHrDzJfkpJFD/zvFqflPq3tCuEBuZ3QPf58u6uYHcxwMEEH+\n\tsF2sZVq1G0Mfworj/aCmnRcssQ5z2r+HmjXg9cWsFrUTxE3jHTbgLPQ+RocxGRo3\n\tgn53AA4k/ZfMmUWhzWIMvxssfI=", "DKIM-Signature": "v=1; a=rsa-sha1; c=relaxed; d=gcc.gnu.org; h=list-id\n\t:list-unsubscribe:list-archive:list-post:list-help:sender\n\t:subject:to:cc:references:from:message-id:date:mime-version\n\t:in-reply-to:content-type; s=default; bh=JFIN7OBSkafgfA7Tx453Da/\n\tTu3I=; b=OzEnVhvNkVxErTJUPhqv0r/Baj+yttHqhDc9ObYxKLuMfJBPKSmelGe\n\tnzc+4uaEUM+lg2HMhhbYb4MVzDHoCuSXtidkdtzEPokiZMH+L/Bf1soOSQZXrpxG\n\tUYhO+pSNK90+jYM4+4UAy/qwwucEeVmYPa2TCJPGZ/Xw4u+jzn44=", "Mailing-List": "contact gcc-patches-help@gcc.gnu.org; run by ezmlm", "Precedence": "bulk", "List-Id": "<gcc-patches.gcc.gnu.org>", "List-Unsubscribe": "<mailto:gcc-patches-unsubscribe-incoming=patchwork.ozlabs.org@gcc.gnu.org>", "List-Archive": "<http://gcc.gnu.org/ml/gcc-patches/>", "List-Post": "<mailto:gcc-patches@gcc.gnu.org>", "List-Help": "<mailto:gcc-patches-help@gcc.gnu.org>", "Sender": "gcc-patches-owner@gcc.gnu.org", "X-Virus-Found": "No", "X-Spam-SWARE-Status": "No, score=-26.9 required=5.0 tests=BAYES_00, GIT_PATCH_0,\n\tGIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3,\n\tSPF_PASS autolearn=ham version=3.3.2 spammy=spread,\n\tHx-languages-length:4217, Hack", "X-HELO": "mx1.suse.de", "Subject": "[RFC] Make 4-stage PGO bootstrap really working", "To": "Jan Hubicka <hubicka@ucw.cz>", "Cc": "Markus Trippelsdorf <markus@trippelsdorf.de>,\n\tGCC Patches <gcc-patches@gcc.gnu.org>,\n\tRichard Biener <richard.guenther@gmail.com>", "References": "<f61115af-55e1-8d59-545f-295f7e5b53cb@suse.cz>\n\t<20170529050407.GA15061@x4>\n\t<9203f3a8-3aa4-292b-1f2d-6749d3e6d0f7@suse.cz>\n\t<20170619103713.GB72026@kam.mff.cuni.cz>", "From": "=?utf-8?q?Martin_Li=C5=A1ka?= <mliska@suse.cz>", "Message-ID": "<a1959943-f196-da67-e391-3901ffe68d28@suse.cz>", "Date": "Wed, 30 Aug 2017 11:45:21 +0200", "User-Agent": "Mozilla/5.0 (X11; Linux x86_64;\n\trv:52.0) Gecko/20100101 Thunderbird/52.2.1", "MIME-Version": "1.0", "In-Reply-To": "<20170619103713.GB72026@kam.mff.cuni.cz>", "Content-Type": "multipart/mixed;\n\tboundary=\"------------0A14DD8C6D9D93B6C5E5D54A\"", "X-IsSubscribed": "yes" }, "content": "Hi.\n\nThis is follow up which I've just noticed. Main problem we have is that\nan instrumented compiler w/ -fprofile-generate (built in $OBJDIR/gcc subfolder)\nwill generate all *.gcda files in a same dir as *.o files. That's problematic\nbecause we then have *.gcda files spread in 'profile' subfolder (because profile'\ncompiler builds libgcc) and 'train' subfolder. Eventually in 'feedback' stage\nwe don't load any *.gcda files :/\n\nWell I really hope we need to set -fprofile-generate=$folder to a $folder. There comes\nsecond problem: all *.gcda files are created as $folder/$aux_base_name.gcda which makes\nit useless as we multiple same file names:\n\n$ find . -name expr.c\n./libcpp/expr.c\n./gcc/expr.c\n\nThus I suggest patch #0001 that appends full path of current work dir. Patch #0002 sets\na folder for PGO bootstrap. So far so good with a small exception: conftest.gcda files\nthat trigger -Wcoverage-mismatch. Can we remove these before a stage? Do we do a similar\nthing somewhere?\n\nThoughts?\nThanks,\nMartin", "diff": "From 654ca05a0e1e0261a4477283ca2dd8678f62f1e7 Mon Sep 17 00:00:00 2001\nFrom: marxin <mliska@suse.cz>\nDate: Wed, 16 Aug 2017 10:22:57 +0200\nSubject: [PATCH 1/2] Append PWD to path when using\n -fprofile-generate=/some/path.\n\n---\n gcc/coverage.c | 20 ++++++++++++++++++--\n 1 file changed, 18 insertions(+), 2 deletions(-)\n\ndiff --git a/gcc/coverage.c b/gcc/coverage.c\nindex ed469107e3e..5780e19bbc8 100644\n--- a/gcc/coverage.c\n+++ b/gcc/coverage.c\n@@ -1220,8 +1220,24 @@ coverage_init (const char *filename)\n g->get_passes ()->get_pass_profile ()->static_pass_number;\n g->get_dumps ()->dump_start (profile_pass_num, NULL);\n \n- if (!profile_data_prefix && !IS_ABSOLUTE_PATH (filename))\n- profile_data_prefix = getpwd ();\n+ if (!IS_ABSOLUTE_PATH (filename))\n+ {\n+ if (profile_data_prefix)\n+\t{\n+\t const char *pwd = getpwd ();\n+\t unsigned l1 = strlen (profile_data_prefix);\n+\t unsigned l2 = strlen (pwd);\n+\n+\t char *b = XNEWVEC (char, l1 + l2 + 2);\n+\t memcpy (b, profile_data_prefix, l1);\n+\t b[l1] = '/';\n+\t memcpy (b + l1 + 1, pwd, l2);\n+\t b[l1 + l2 + 1] = '\\0';\n+\t profile_data_prefix = b;\n+\t}\n+ else\n+\tprofile_data_prefix = getpwd ();\n+ }\n \n if (profile_data_prefix)\n prefix_len = strlen (profile_data_prefix);\n-- \n2.14.1\n\n", "prefixes": [ "RFC" ] }