From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E053C43387 for ; Tue, 15 Jan 2019 18:37:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C9FBE20657 for ; Tue, 15 Jan 2019 18:37:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=android.com header.i=@android.com header.b="mbzx8Nqu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388829AbfAOShT (ORCPT ); Tue, 15 Jan 2019 13:37:19 -0500 Received: from mail-pg1-f196.google.com ([209.85.215.196]:40591 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388811AbfAOShR (ORCPT ); Tue, 15 Jan 2019 13:37:17 -0500 Received: by mail-pg1-f196.google.com with SMTP id z10so1591223pgp.7 for ; Tue, 15 Jan 2019 10:37:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=android.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=8yaTwDdPBhHbjdTxlPcCg5RXwpmur+DCR6kh9TUQ4zA=; b=mbzx8NquTpHK3NGh80GZR+FkS6XH3Jv2gQLamAcsguxfYByJZO9z63wtsoguAFjznY vzVfU0YutkG706O6nUkzkdQFHoua5LN337Y71R9drYxaNtlSyPNH6eb5cLERw7A3BlsW L0fFiUVzKJJnZt1fsCwYbUTi2Cws7DnGAymxGt6CMmvgQ94m2mNn1ZQzKYeH+QUpB/Cv WPR1xrv1TtW7xPkBDNDySMH4W9V4I0yHEOAuu0+/nyUGZpUNszlxtlwnNoUlCRV+ObQ2 RVt4MJLtQIq5EX2GNh/Ulwl66tFJAPUOR2scgOlbWLZXAj/8GLxfenfeUldByMbZk5Z5 pKmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=8yaTwDdPBhHbjdTxlPcCg5RXwpmur+DCR6kh9TUQ4zA=; b=SYvllZy1MSQZl3ozpR94dtjqRRw+WN5IZs33P5beipEK6Y6eC0+yB+OxsPBeYfkOAK vnq/JS09Da2KEMr6YcsoqfGmlK8SNZ3Y+xJAM2A06TVkWrS7ppDihx4y5kHOo5NHbFLu 5avfw3lHGh+tyz4jESmoSz1Tz+vUA+XzsP/oi7GR8QYzpO1O5M7vRY7bB/P4O0p2OSc9 EL6/9rKcrCSSjUc7b1GgdFmXg5k3VVgsUwpaQcu5ZSDr5e5HbrJWgXtlCFKZtMvmDQzA jQDMFDJfPEAPAA4kA/LQMIVFPSXvrDQCxSA/SAejnOzySP4TsY59gN8KW3w2jJI76Zy0 L8dw== X-Gm-Message-State: AJcUukfrbWnUbm4gPQJ0kpwWJ9GBi8FXuUb7EtxzhDW9G3epIK/NVpGf DhRULHy+Yi4MZvyF07Ebyj+VfQ== X-Google-Smtp-Source: ALg8bN6pv/hg41j8z+pD/BgbCn5s2/hqSodq0sWscCwtT6QyUU0zHTtFP8ArpiTeiZtGRBeejCgmIg== X-Received: by 2002:a63:fc49:: with SMTP id r9mr4891431pgk.209.1547577436162; Tue, 15 Jan 2019 10:37:16 -0800 (PST) Received: from trong0.mtv.corp.google.com ([2620:0:1000:1601:c43f:8c1b:f6ef:3dce]) by smtp.gmail.com with ESMTPSA id i193sm10156113pgc.22.2019.01.15.10.37.15 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 15 Jan 2019 10:37:15 -0800 (PST) From: Tri Vo X-Google-Original-From: Tri Vo To: oberpar@linux.ibm.com Cc: ghackmann@android.com, ndesaulniers@google.com, linux-kernel@vger.kernel.org, kernel-team@android.com, Tri Vo , Trilok Soni , Prasad Sodagudi Subject: [PATCH v2 3/4] gcov: clang: link/unlink profiling data set. Date: Tue, 15 Jan 2019 10:36:42 -0800 Message-Id: <20190115183643.120619-4-trong@google.com> X-Mailer: git-send-email 2.20.1.97.g81188d93c3-goog In-Reply-To: <20190115183643.120619-1-trong@google.com> References: <20190115183643.120619-1-trong@google.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nick Desaulniers gcov.h defines an interface to access gcov_info data. Add Clang implementation of gcov_info_link/gcov_info_unlink interfaces. Signed-off-by: Nick Desaulniers Signed-off-by: Tri Vo Tested-by: Trilok Soni Tested-by: Prasad Sodagudi Tested-by: Tri Vo --- kernel/gcov/clang.c | 33 ++++++++++++++++++++++++++++----- 1 file changed, 28 insertions(+), 5 deletions(-) diff --git a/kernel/gcov/clang.c b/kernel/gcov/clang.c index b00795d28137..ea42deb852f7 100644 --- a/kernel/gcov/clang.c +++ b/kernel/gcov/clang.c @@ -77,6 +77,7 @@ struct gcov_fn_info { u32 num_counters; u64 *counters; + const char *function_name; }; static struct gcov_info *current_info; @@ -124,7 +125,7 @@ void llvm_gcda_emit_function(u32 ident, const char *function_name, if (!info) { pr_warn_ratelimited("failed to allocate gcov function info for %s\n", - function_name); + function_name ?: "UNKNOWN"); return; } @@ -133,6 +134,8 @@ void llvm_gcda_emit_function(u32 ident, const char *function_name, info->checksum = func_checksum; info->use_extra_checksum = use_extra_checksum; info->cfg_checksum = cfg_checksum; + if (function_name) + info->function_name = kstrdup(function_name, GFP_KERNEL); list_add_tail(&info->head, ¤t_info->functions); } @@ -193,6 +196,26 @@ struct gcov_info *gcov_info_next(struct gcov_info *info) return list_next_entry(info, head); } +/** + * gcov_info_link - link/add profiling data set to the list + * @info: profiling data set + */ +void gcov_info_link(struct gcov_info *info) +{ + list_add_tail(&info->head, &clang_gcov_list); +} + +/** + * gcov_info_unlink - unlink/remove profiling data set from the list + * @prev: previous profiling data set + * @info: profiling data set + */ +void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info) +{ + if (prev) + list_del(&prev->head); +} + /* Symbolic links to be created for each profiling data file. */ const struct gcov_link gcov_link[] = { { OBJ_TREE, "gcno" }, /* Link to .gcno file in $(objtree). */ @@ -256,8 +279,8 @@ static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn) return NULL; INIT_LIST_HEAD(&fn_dup->head); - fn_dup->name = kstrdup(fn->name, GFP_KERNEL); - if (!fn_dup->name) + fn_dup->function_name = kstrdup(fn->function_name, GFP_KERNEL); + if (!fn_dup->function_name) goto err_name; fn_dup->counters = kmemdup(fn->counters, @@ -269,7 +292,7 @@ static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn) return fn_dup; err_counters: - kfree(fn_dup->name); + kfree(fn_dup->function_name); err_name: kfree(fn_dup); return NULL; @@ -317,7 +340,7 @@ void gcov_info_free(struct gcov_info *info) struct gcov_fn_info *fn, *tmp; list_for_each_entry_safe(fn, tmp, &info->functions, head) { - kfree(fn->name); + kfree(fn->function_name); kfree(fn->counters); list_del(&fn->head); kfree(fn); -- 2.20.1.97.g81188d93c3-goog