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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,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 C9249C43381 for ; Tue, 12 Mar 2019 02:03:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8DB8C217F4 for ; Tue, 12 Mar 2019 02:03:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552356196; bh=KtrYpsxTjrDpw0OJFp1txUDpiAwp7SKAUCHD7oiUqcM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hf4o4ueIJqgv5i59LtI3E+fAfmqUZ0tDeTLlopL8onJvSvKM2TeuHyKhkiKm0zRcW YO8Aj28Mcu2Uym5gn0Gc23ufKQebbh1DNsvdENcjsnENw0oEyNE0Pju5/HnnvNBwph KejZzvBje1aGcxFO50dHcwl+ZESuW+Ln7SPNtR1o= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727027AbfCLCDP (ORCPT ); Mon, 11 Mar 2019 22:03:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:37074 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726896AbfCLCDN (ORCPT ); Mon, 11 Mar 2019 22:03:13 -0400 Received: from quaco.meukeo.local (unknown [179.97.35.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B81D121741; Tue, 12 Mar 2019 02:03:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552356192; bh=KtrYpsxTjrDpw0OJFp1txUDpiAwp7SKAUCHD7oiUqcM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cFvmz2H0gJWL2EKDmsN0NDzKRlM5csVgNcyYyK7dq/7TJuRd3D+/Vji/gPaLe+1wR OV3DB9BCSYrLNognZ9qpuBsG+8DwWxElIK/vOGOs2PBELITbPKC6j3IPpgv3YBJjUb drWYxx4aApardttr7xwWmeAESoUtwVs/XFTMtzug= From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Andi Kleen , Feng Tang , Arnaldo Carvalho de Melo Subject: [PATCH 14/30] perf report: Use less for scripts output Date: Mon, 11 Mar 2019 23:01:48 -0300 Message-Id: <20190312020204.22092-15-acme@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190312020204.22092-1-acme@kernel.org> References: <20190312020204.22092-1-acme@kernel.org> 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: Andi Kleen The UI viewer for scripts output has a lot of limitations: limited size, no search or save function, slow, and various other issues. Just use 'less' to display directly on the terminal instead. This won't work in GTK mode, but GTK doesn't support these context menus anyways. If that is ever done could use an terminal for the output. Signed-off-by: Andi Kleen Acked-by: Feng Tang Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190309055628.21617-8-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/scripts.c | 130 ++++--------------------------- 1 file changed, 17 insertions(+), 113 deletions(-) diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c index 90a32ac69e76..7f36630694bf 100644 --- a/tools/perf/ui/browsers/scripts.c +++ b/tools/perf/ui/browsers/scripts.c @@ -1,35 +1,12 @@ // SPDX-License-Identifier: GPL-2.0 -#include -#include -#include -#include #include "../../util/sort.h" #include "../../util/util.h" #include "../../util/hist.h" #include "../../util/debug.h" #include "../../util/symbol.h" #include "../browser.h" -#include "../helpline.h" #include "../libslang.h" -/* 2048 lines should be enough for a script output */ -#define MAX_LINES 2048 - -/* 160 bytes for one output line */ -#define AVERAGE_LINE_LEN 160 - -struct script_line { - struct list_head node; - char line[AVERAGE_LINE_LEN]; -}; - -struct perf_script_browser { - struct ui_browser b; - struct list_head entries; - const char *script_name; - int nr_lines; -}; - #define SCRIPT_NAMELEN 128 #define SCRIPT_MAX_NO 64 /* @@ -73,69 +50,29 @@ static int list_scripts(char *script_name) return ret; } -static void script_browser__write(struct ui_browser *browser, - void *entry, int row) +static void run_script(char *cmd) { - struct script_line *sline = list_entry(entry, struct script_line, node); - bool current_entry = ui_browser__is_current_entry(browser, row); - - ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED : - HE_COLORSET_NORMAL); - - ui_browser__write_nstring(browser, sline->line, browser->width); + pr_debug("Running %s\n", cmd); + SLang_reset_tty(); + if (system(cmd) < 0) + pr_warning("Cannot run %s\n", cmd); + /* + * SLang doesn't seem to reset the whole terminal, so be more + * forceful to get back to the original state. + */ + printf("\033[c\033[H\033[J"); + fflush(stdout); + SLang_init_tty(0, 0, 0); + SLsmg_refresh(); } -static int script_browser__run(struct perf_script_browser *browser) -{ - int key; - - if (ui_browser__show(&browser->b, browser->script_name, - "Press ESC to exit") < 0) - return -1; - - while (1) { - key = ui_browser__run(&browser->b, 0); - - /* We can add some special key handling here if needed */ - break; - } - - ui_browser__hide(&browser->b); - return key; -} - - int script_browse(const char *script_opt) { char cmd[SCRIPT_FULLPATH_LEN*2], script_name[SCRIPT_FULLPATH_LEN]; - char *line = NULL; - size_t len = 0; - ssize_t retlen; - int ret = -1, nr_entries = 0; - FILE *fp; - void *buf; - struct script_line *sline; - - struct perf_script_browser script = { - .b = { - .refresh = ui_browser__list_head_refresh, - .seek = ui_browser__list_head_seek, - .write = script_browser__write, - }, - .script_name = script_name, - }; - - INIT_LIST_HEAD(&script.entries); - - /* Save each line of the output in one struct script_line object. */ - buf = zalloc((sizeof(*sline)) * MAX_LINES); - if (!buf) - return -1; - sline = buf; memset(script_name, 0, SCRIPT_FULLPATH_LEN); if (list_scripts(script_name)) - goto exit; + return -1; sprintf(cmd, "perf script -s %s ", script_name); @@ -147,42 +84,9 @@ int script_browse(const char *script_opt) strcat(cmd, input_name); } - strcat(cmd, " 2>&1"); - - fp = popen(cmd, "r"); - if (!fp) - goto exit; - - while ((retlen = getline(&line, &len, fp)) != -1) { - strncpy(sline->line, line, AVERAGE_LINE_LEN); - - /* If one output line is very large, just cut it short */ - if (retlen >= AVERAGE_LINE_LEN) { - sline->line[AVERAGE_LINE_LEN - 1] = '\0'; - sline->line[AVERAGE_LINE_LEN - 2] = '\n'; - } - list_add_tail(&sline->node, &script.entries); - - if (script.b.width < retlen) - script.b.width = retlen; - - if (nr_entries++ >= MAX_LINES - 1) - break; - sline++; - } - - if (script.b.width > AVERAGE_LINE_LEN) - script.b.width = AVERAGE_LINE_LEN; - - free(line); - pclose(fp); + strcat(cmd, " 2>&1 | less"); - script.nr_lines = nr_entries; - script.b.nr_entries = nr_entries; - script.b.entries = &script.entries; + run_script(cmd); - ret = script_browser__run(&script); -exit: - free(buf); - return ret; + return 0; } -- 2.20.1