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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,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 90610C432BE for ; Thu, 29 Jul 2021 05:11:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 755876023E for ; Thu, 29 Jul 2021 05:11:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234118AbhG2FLQ (ORCPT ); Thu, 29 Jul 2021 01:11:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234112AbhG2FLQ (ORCPT ); Thu, 29 Jul 2021 01:11:16 -0400 Received: from mail-ed1-x536.google.com (mail-ed1-x536.google.com [IPv6:2a00:1450:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 66BFCC061757 for ; Wed, 28 Jul 2021 22:11:12 -0700 (PDT) Received: by mail-ed1-x536.google.com with SMTP id y12so6393085edo.6 for ; Wed, 28 Jul 2021 22:11:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=T0zLZZKPmpL25tbLAra5wuwV9NpHnucnTUscDRY9rPc=; b=ri+nAaYHkTrWjkyu0tv/IewltlWlDaLtlA3qODjligNy7yKh4csnjcXrwNVh9glmIh 0vsO69gzhgpYzdlJ/nR1Br3E9PWYlgF0vdeK73ku+SZvn/36NG0pR7XX7O/8KmfvF+AZ vjqMSyP/ReCl1LJNU05AkRuqrQGR7nbJAJqUCxW7G9+vg27AYdaXvyapupau9o3CFxNv EoHGUzNyRroLoHxzqq8GT94+6e6e4pCNgu91gsUFysOUP2+2TJlrILOD03SzxCHKjjWK dREWI46tNY3OG1OrKxO5pQ0VX3sJKAsVLqdDdYHtef7E9EEMAHETy7SQsAJwQao05err nwfg== 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=T0zLZZKPmpL25tbLAra5wuwV9NpHnucnTUscDRY9rPc=; b=fndpR8iOxCRuWWBv34/z38monMDVZ9Lo1DF0KK9fechxMvjMbmVacgPbu2LePlMcMV LIcFNwZl7pkXjFMGCwEZqyc596LC8BEuuNIAQGpOXSVh8AglSHiuHYsXgtxZhYaoxEkC oM7HUZzUWv83h6xBIRJRVMn2YsVZMM2PyWz/4cqDUsjHKXBGF3dh07WoHbNVen7/Ypn/ zgz3mk+rSdCNs7+3kAf+KdUCOffqIrVITe7Nvumin/rfk8pGssmw+E8aHehxXQ44WtXU ubBUgovbixjdm1IDF597uteUG4dey4h0xvoZsRHR3+w9r1x5xbkZilexNT2Dun9HbK+O CFuQ== X-Gm-Message-State: AOAM530zY2VySFKNsim4KjfSKYdnyMkTPa0o5PpSxXDwAp0YkP11JZUH D0bOtAQBicV+bgiwPNtuudqWcjTSby2z2A== X-Google-Smtp-Source: ABdhPJxAh9Mxbff2f2S5SR7cPxowYu4VpBiGPoy/6S3rf9UO1Qs6TIpWHfk6FOgYsgvneAiPzwwEOA== X-Received: by 2002:a05:6402:896:: with SMTP id e22mr4001459edy.246.1627535470974; Wed, 28 Jul 2021 22:11:10 -0700 (PDT) Received: from oberon.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id s20sm530615eji.116.2021.07.28.22.11.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jul 2021 22:11:10 -0700 (PDT) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v2 72/87] trace-cmd library: Add zlib compression algorithm Date: Thu, 29 Jul 2021 08:09:44 +0300 Message-Id: <20210729050959.12263-73-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210729050959.12263-1-tz.stoyanov@gmail.com> References: <20210729050959.12263-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org Added implementation for zlib compression algorithm, using libz libraray, if available. Signed-off-by: Tzvetomir Stoyanov (VMware) --- Makefile | 7 ++ lib/trace-cmd/Makefile | 7 ++ lib/trace-cmd/include/trace-cmd-local.h | 4 + lib/trace-cmd/trace-compress-zlib.c | 109 ++++++++++++++++++++++++ tracecmd/Makefile | 4 + 5 files changed, 131 insertions(+) create mode 100644 lib/trace-cmd/trace-compress-zlib.c diff --git a/Makefile b/Makefile index d6fd09d8..2bc325dc 100644 --- a/Makefile +++ b/Makefile @@ -311,6 +311,13 @@ ifeq ($(PERF_DEFINED), 1) CFLAGS += -DPERF endif +ZLIB_INSTALLED := $(shell if (printf "$(pound)include \n void main(){deflateInit(NULL, Z_BEST_COMPRESSION);}" | $(CC) -o /dev/null -x c - -lz >/dev/null 2>&1) ; then echo 1; else echo 0 ; fi) +ifeq ($(ZLIB_INSTALLED), 1) +export ZLIB_INSTALLED +CFLAGS += -DHAVE_ZLIB +$(info Have zlib compression support) +endif + CUNIT_INSTALLED := $(shell if (printf "$(pound)include \n void main(){CU_initialize_registry();}" | $(CC) -o /dev/null -x c - -lcunit >/dev/null 2>&1) ; then echo 1; else echo 0 ; fi) export CUNIT_INSTALLED diff --git a/lib/trace-cmd/Makefile b/lib/trace-cmd/Makefile index bab4322d..1ee6ac4c 100644 --- a/lib/trace-cmd/Makefile +++ b/lib/trace-cmd/Makefile @@ -26,6 +26,9 @@ OBJS += trace-timesync-ptp.o OBJS += trace-timesync-kvm.o endif OBJS += trace-compress.o +ifeq ($(ZLIB_INSTALLED), 1) +OBJS += trace-compress-zlib.o +endif # Additional util objects OBJS += trace-blk-hack.o @@ -47,6 +50,10 @@ $(LIBTRACECMD_STATIC): $(OBJS) LIBS = $(LIBTRACEEVENT_LDLAGS) $(LIBTRACEFS_LDLAGS) -lpthread +ifeq ($(ZLIB_INSTALLED), 1) +LIBS += -lz +endif + $(LIBTRACECMD_SHARED_VERSION): $(LIBTRACECMD_SHARED) @ln -sf $( + * + */ +#include +#include +#include +#include + +#include "trace-cmd-private.h" + +#define __ZLIB_NAME "zlib" +#define __ZLIB_WEIGTH 10 + +static int zlib_compress(char *in, unsigned int in_bytes, + char *out, unsigned int *out_bytes) +{ + unsigned long out_size = *out_bytes; + int ret; + + ret = compress2((unsigned char *)out, &out_size, + (unsigned char *)in, (unsigned long)in_bytes, Z_BEST_COMPRESSION); + *out_bytes = out_size; + errno = 0; + switch (ret) { + case Z_OK: + return 0; + case Z_BUF_ERROR: + errno = -ENOBUFS; + break; + case Z_MEM_ERROR: + errno = -ENOMEM; + break; + case Z_STREAM_ERROR: + errno = -EINVAL; + break; + default: + errno = -EFAULT; + break; + } + + return -1; +} + +static int zlib_decompress(char *in, unsigned int in_bytes, + char *out, unsigned int *out_bytes) +{ + unsigned long out_size = *out_bytes; + int ret; + + ret = uncompress((unsigned char *)out, &out_size, + (unsigned char *)in, (unsigned long)in_bytes); + *out_bytes = out_size; + errno = 0; + switch (ret) { + case Z_OK: + return 0; + case Z_BUF_ERROR: + errno = -ENOBUFS; + break; + case Z_MEM_ERROR: + errno = -ENOMEM; + break; + case Z_DATA_ERROR: + errno = -EINVAL; + break; + default: + errno = -EFAULT; + break; + } + + return -1; +} + +static unsigned int zlib_compress_bound(unsigned int in_bytes) +{ + return compressBound(in_bytes); +} + +static bool zlib_is_supported(const char *name, const char *version) +{ + const char *zver; + + if (!name) + return false; + if (strlen(name) != strlen(__ZLIB_NAME) || strcmp(name, __ZLIB_NAME)) + return false; + + if (!version) + return true; + + zver = zlibVersion(); + if (!zver) + return false; + + /* Compare the major version number */ + if (atoi(version) <= atoi(zver)) + return true; + + return false; +} + +int tracecmd_zlib_init(void) +{ + return tracecmd_compress_proto_register(__ZLIB_NAME, zlibVersion(), __ZLIB_WEIGTH, + zlib_compress, zlib_decompress, + zlib_compress_bound, zlib_is_supported); +} diff --git a/tracecmd/Makefile b/tracecmd/Makefile index 80c69bbb..b7a23dc4 100644 --- a/tracecmd/Makefile +++ b/tracecmd/Makefile @@ -51,6 +51,10 @@ CONFIG_INCLUDES = CONFIG_LIBS = -lrt -lpthread $(TRACE_LIBS) CONFIG_FLAGS = +ifeq ($(ZLIB_INSTALLED), 1) +CONFIG_LIBS += -lz +endif + all: $(TARGETS) $(bdir): -- 2.31.1