From patchwork Thu Dec 2 12:25:04 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: 12652477 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 73ECBC4332F for ; Thu, 2 Dec 2021 12:25:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236092AbhLBM2u (ORCPT ); Thu, 2 Dec 2021 07:28:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36624 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235759AbhLBM2t (ORCPT ); Thu, 2 Dec 2021 07:28:49 -0500 Received: from mail-ed1-x529.google.com (mail-ed1-x529.google.com [IPv6:2a00:1450:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89D0DC061759 for ; Thu, 2 Dec 2021 04:25:26 -0800 (PST) Received: by mail-ed1-x529.google.com with SMTP id y13so115218004edd.13 for ; Thu, 02 Dec 2021 04:25:26 -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=rRRaXmobcWSLIN9RqPvdMqevONWo7Khh7/TGyV5KCZY=; b=KtwgRL7ecewlewfjbxG12jMvaoE3d6QaMi3A5aQjy8cOAlWQ5jbTrEXTf1y1LXnVw3 DXFUn0Vbi0ZJulT0eTjf7nBn75k/B/ydczJRHpvW7zANWYw/oNXcahgztwXw8t23fG7/ BZGDcezSAkk9J5rqnUrfC66bMyot/1mFyoqiG0kkYLpnkEVMnF958y658FFOwj1B/XC+ o16zgFp3q8xdWcVs5JYy7WOvwTf2KM/FXRM6j4S+EPtLH4l2kh7WViFY5jCxmNe0+o45 b03Cm8NSyglbneERHd4Kx9/rqSqLMtlHtkf6Av24zVz42u7R8hV4vbMW7el65Vmdb/dc Pdyg== 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=rRRaXmobcWSLIN9RqPvdMqevONWo7Khh7/TGyV5KCZY=; b=cVYsUoYZ0nU6iCqEg9WEAEcxBpIKloHrLiF+w2FyL1GFsNomo3w4N+aVa6CWq8ECCO uO7vpO690gFyLXnOWBnlH+Wx8b7aCQ3sMe+4RCoXCQVAH/QxeUJ6dno/UIGe+LUX4Hyz X4AIO9Eyazr5ptRZ6YSn98qC1eps6IvzJDJbmxmSJTe2ZihcOMdWtdVnYPI6szD59vRk wXgI/Iw5szrneOI2o996S8kK57b9thNhBPGC/mlHF3yHhTsUTd+HKwT+Zckz0hzdeWxH 9pVZ3B9wv0DBGcoodswW0t2yGFbcEnEDLOc3p4PF+hJP0zJI+tCTUU2uoWChMzArEVHY BC2Q== X-Gm-Message-State: AOAM531wDge8RkkL1ghUozcpBA6CECZSqUYlpUazbOBuf0KLmy30Gto8 wb2V841AOJmwJwdrRqyHzhd9I7x1PCUUJg== X-Google-Smtp-Source: ABdhPJx2IK5z0vf3SFaJ+KVNXRJHac/fETgLRI5AK220bq/iS3fcrFmKU4vdSvhLObgW7XdFy5njnA== X-Received: by 2002:a17:906:3a4a:: with SMTP id a10mr14793372ejf.253.1638447925162; Thu, 02 Dec 2021 04:25:25 -0800 (PST) Received: from oberon.zico.biz.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id eg8sm1998507edb.75.2021.12.02.04.25.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 04:25:24 -0800 (PST) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v5 17/20] trace-cmd library: Add zlib compression algorithm Date: Thu, 2 Dec 2021 14:25:04 +0200 Message-Id: <20211202122507.43572-18-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211202122507.43572-1-tz.stoyanov@gmail.com> References: <20211202122507.43572-1-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 133d1308..fc0724c6 100644 --- a/lib/trace-cmd/trace-compress.c +++ b/lib/trace-cmd/trace-compress.c @@ -356,6 +356,9 @@ 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):