From patchwork Fri Dec 10 10:59:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Tzvetomir Stoyanov (VMware)" X-Patchwork-Id: 12669335 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D965AC433EF for ; Fri, 10 Dec 2021 10:59:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240133AbhLJLDb (ORCPT ); Fri, 10 Dec 2021 06:03:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35634 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237285AbhLJLDa (ORCPT ); Fri, 10 Dec 2021 06:03:30 -0500 Received: from mail-ed1-x535.google.com (mail-ed1-x535.google.com [IPv6:2a00:1450:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C1B9DC061746 for ; Fri, 10 Dec 2021 02:59:55 -0800 (PST) Received: by mail-ed1-x535.google.com with SMTP id w1so28501455edc.6 for ; Fri, 10 Dec 2021 02:59:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=W7WACWTRxYHvxphLFaDkLLl6Ip7NTeMCnyKHUYDHUMg=; b=kZ7j8jqvv0savlSF1X/sOqaJPDHzd85twWwd+xI95TerZ4zOjC5rD2dAwo5CDzrUP5 d8XEbFbLRFwbZSaBHlhbgd4RV9EIXgyi220Tpa7dvmla5ZVlOJMYXQK2LtqadQ/2hff+ tXCKw4NzSHcq3JWKruHThQQHXxohTYDEINRWrkL/o9h5hRTtrXnknea9bpQYXAiiCyyC Cv1G/c7j6fhez/qJwpNe7TldJ2dL9JEQ5sQguy4y0Px/KZLz9koEYmnUMqv+rsJB5IsV 9Mh1Hz98UszeAtw3zhmRjuZ8md0soEcU1ifGHS31WXLLXIuqYvep21InX8my21YbvVFn av+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=W7WACWTRxYHvxphLFaDkLLl6Ip7NTeMCnyKHUYDHUMg=; b=0Vq0ODnnAgtr/YBZgYR4eyh6G6S7hXTfvMG4Vs0Rx0L5ap7bIO9PkEiE2eA4MdBNJ3 CiCP5i7xWb/4aeci7Ei+p2bt4DAtows5a3fLNRC7Sbk4EXg5W0shwOf6U2mMHKiiDOic hXhla7eZmR99I6RV7sOnnSp9wf5sG2sGPVsGoZa0wBYuJacG/f2rQHPDZDzDpG20VJFQ sE59zkCOV6WUoYrVggaVsqwckKXhjh+HiZaHe7+/JF8OVVWYJOI0qpovmXXpyEhBHgUK 8+G5o0j280kiRsDI/OFCAJf4w1oHToHFC88naENRVK7KylwwBR4q0HdLZKUfopdbvnhP vtlQ== X-Gm-Message-State: AOAM531D3iSNsI/V06w+6rxBczv+MxM55g431MVSM/d19UrPoD6r5YjA /cewUBqaYHLFxpHLZuR/Ti4gVMB83/U= X-Google-Smtp-Source: ABdhPJzhmehVQZrPru3d/BOPDgTO/s461ty7ovIZz/+UVG+T7f1WQv3p0336ktF3TBLEVns945sOxg== X-Received: by 2002:a17:907:3f19:: with SMTP id hq25mr21973859ejc.225.1639133994371; Fri, 10 Dec 2021 02:59:54 -0800 (PST) Received: from oberon.zico.biz.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id j17sm1320379edj.0.2021.12.10.02.59.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Dec 2021 02:59:54 -0800 (PST) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v6 17/20] trace-cmd library: Add zlib compression algorithm Date: Fri, 10 Dec 2021 12:59:35 +0200 Message-Id: <20211210105938.98250-18-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211210105938.98250-1-tz.stoyanov@gmail.com> References: <20211210105938.98250-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org Added implementation for zlib compression algorithm, using libz library, 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 ++++++++++++++++++++++++ lib/trace-cmd/trace-compress.c | 3 + tracecmd/Makefile | 4 + 6 files changed, 134 insertions(+) create mode 100644 lib/trace-cmd/trace-compress-zlib.c diff --git a/Makefile b/Makefile index 91f62859..c9faf8db 100644 --- a/Makefile +++ b/Makefile @@ -300,6 +300,13 @@ 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(const 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(const 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/lib/trace-cmd/trace-compress.c b/lib/trace-cmd/trace-compress.c index 883cf669..3d8f31bf 100644 --- a/lib/trace-cmd/trace-compress.c +++ b/lib/trace-cmd/trace-compress.c @@ -359,6 +359,9 @@ void tracecmd_compress_init(void) gettimeofday(&time, NULL); srand((time.tv_sec * 1000) + (time.tv_usec / 1000)); +#ifdef HAVE_ZLIB + tracecmd_zlib_init(); +#endif } static struct compress_proto *compress_proto_select(void) 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):