From patchwork Wed Nov 28 08:55:32 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Wayne Xia X-Patchwork-Id: 202401 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 42F3F2C0086 for ; Wed, 28 Nov 2012 20:22:20 +1100 (EST) Received: from localhost ([::1]:33770 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TddTF-0004fG-PK for incoming@patchwork.ozlabs.org; Wed, 28 Nov 2012 03:58:17 -0500 Received: from eggs.gnu.org ([208.118.235.92]:55749) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TddSo-0003nB-Rh for qemu-devel@nongnu.org; Wed, 28 Nov 2012 03:57:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TddSg-0006ZT-N4 for qemu-devel@nongnu.org; Wed, 28 Nov 2012 03:57:50 -0500 Received: from e28smtp09.in.ibm.com ([122.248.162.9]:37980) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TddSf-0006WS-Qg for qemu-devel@nongnu.org; Wed, 28 Nov 2012 03:57:42 -0500 Received: from /spool/local by e28smtp09.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 28 Nov 2012 14:27:38 +0530 Received: from d28av02.in.ibm.com (d28av02.in.ibm.com [9.184.220.64]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id qAS8varn27984098 for ; Wed, 28 Nov 2012 14:27:37 +0530 Received: from d28av02.in.ibm.com (loopback [127.0.0.1]) by d28av02.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id qASEPAe3023351 for ; Thu, 29 Nov 2012 01:25:10 +1100 Received: from RedHat62GAWSWenchao (wenchaox.cn.ibm.com [9.115.122.172] (may be forged)) by d28av02.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id qASENFOW016369; Thu, 29 Nov 2012 01:25:09 +1100 From: Wenchao Xia To: qemu-devel@nongnu.org Date: Wed, 28 Nov 2012 16:55:32 +0800 Message-Id: <1354092935-6508-5-git-send-email-xiawenc@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1354092935-6508-1-git-send-email-xiawenc@linux.vnet.ibm.com> References: <1354092935-6508-1-git-send-email-xiawenc@linux.vnet.ibm.com> MIME-Version: 1.0 x-cbid: 12112808-2674-0000-0000-000006E7B537 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 122.248.162.9 Cc: kwolf@redhat.com, aliguori@us.ibm.com, stefanha@gmail.com, blauwirbel@gmail.com, pbonzini@redhat.com, Wenchao Xia Subject: [Qemu-devel] [PATCH V12 4/7] libqblock build system X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Libqblock was placed in new directory ./libqblock, libtool will build dynamic library there, source files of block layer remains in ./block. So block related source code will generate 3 sets of binary, first is old ones used in qemu, second and third are non PIC and PIC ones in ./libqblock. GCC compiler flag visibility=hidden was used with special macro, to export only symbols that was marked as PUBLIC. For testing, make check-libqblock will build binaries and execute it, make clean or make check-clean will delete generated binaries. By default this library will be built and tested if libtool present, out of tree building is supported. v10: Use $(SRC_PATH) in install rules. Call install libqblock from install target in root Makefile. Make libqblock and check-libqblock is conditional to a configure option and libtool now, if libtool is not present it is forced to be disabled. Removed unnest-vars in libqblock Makfile for that it was done in Makefile.objs. Picked out only needed objects files for libqblock, added stub objects in libqblock linking. Use libtool to link check-libqblock. Removed -fPIC cc flag replacement in tests/Makefile. Removed seperate directory for libqblock test case. Added target subdir-libqblock. Added targets to .phony. Generate files at root directory instead of ./libqblock. v11: Set libqblock initial string to empty instead of “yes” in configure, by default it will be set depending on libtool’s state, fail when user set it to yes but libtool not present. Removed link flag in check-libqblock linkage, use libtool to search library. Added libqblock-aio.c, which contains code from main-loop.c, iohandler.c compatfd.c, removed these three files from compile and link objects. v12: libqblock/libqblock-aio.c, this file is kept in this patch which will be changed in following patch to introduce API needed by libqblock. tests/Makefile, Removed variable LIBQBLOCK_DIR, Renamed LTLINK_CHECK_LIBQBLOCK to LTLINK, removed space in LTLINK command "lt LINK $(TARGET_DIR) $@". tests/Makefile, use only gtester option -k, to avoid silent fail for segment fault. libqblock/Makefile, use stubs-obj-y directly for that symbol conflict solved. Signed-off-by: Wenchao Xia --- .gitignore | 2 + Makefile | 25 +++++++++++++- configure | 39 +++++++++++++++++++++++ libqblock/Makefile | 69 +++++++++++++++++++++++++++++++++++++++++ libqblock/libqblock-aio.c | 62 ++++++++++++++++++++++++++++++++++++ libqblock/libqblock.c | 6 +++ libqblock/libqblock.h | 1 + libqblock/libqblock.pc.in | 13 ++++++++ tests/Makefile | 31 +++++++++++++++++- tests/check-libqblock-qcow2.c | 6 +++ 10 files changed, 250 insertions(+), 4 deletions(-) create mode 100644 libqblock/Makefile create mode 100644 libqblock/libqblock-aio.c create mode 100644 libqblock/libqblock-error.c create mode 100644 libqblock/libqblock-error.h create mode 100644 libqblock/libqblock-types.h create mode 100644 libqblock/libqblock.c create mode 100644 libqblock/libqblock.h create mode 100644 libqblock/libqblock.pc.in create mode 100644 tests/check-libqblock-qcow2.c diff --git a/.gitignore b/.gitignore index bd6ba1c..77c1910 100644 --- a/.gitignore +++ b/.gitignore @@ -93,3 +93,5 @@ cscope.* tags TAGS *~ +tests/check-libqblock-qcow2 +tests/test_images diff --git a/Makefile b/Makefile index b04d862..dd01fe7 100644 --- a/Makefile +++ b/Makefile @@ -195,6 +195,27 @@ qemu-img$(EXESUF): qemu-img.o $(tools-obj-y) $(block-obj-y) libqemustub.a qemu-nbd$(EXESUF): qemu-nbd.o $(tools-obj-y) $(block-obj-y) libqemustub.a qemu-io$(EXESUF): qemu-io.o cmd.o $(tools-obj-y) $(block-obj-y) libqemustub.a +###################################################################### +# Support building shared library libqblock +.PHONY: install-libqblock subdir-libqblock + +ifeq ($(CONFIG_LIBQBLOCK), y) +subdir-libqblock: $(GENERATED_HEADERS) $(GENERATED_SOURCES) + $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C libqblock V="$(V)" TARGET_DIR="$*/" all,) + +install-libqblock: subdir-libqblock + $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C libqblock V="$(V)" TARGET_DIR="$*/" install-libqblock,) +else +LIBQBLOCK_WARN = "Libqblock was not enabled, skip. Make sure libtool was installed and libqblock was enabled." +subdir-libqblock: $(GENERATED_HEADERS) $(GENERATED_SOURCES) + @echo $(LIBQBLOCK_WARN) + +install-libqblock: + @echo $(LIBQBLOCK_WARN) +endif + +########################################################################### + qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o vscclient$(EXESUF): $(libcacard-y) $(oslib-obj-y) $(trace-obj-y) libcacard/vscclient.o libqemustub.a @@ -258,7 +279,7 @@ clean: rm -rf qapi-generated rm -rf qga/qapi-generated $(MAKE) check-clean - for d in $(ALL_SUBDIRS) $(QEMULIBS) libcacard; do \ + for d in $(ALL_SUBDIRS) $(QEMULIBS) libcacard libqblock; do \ if test -d $$d; then $(MAKE) -C $$d $@ || exit 1; fi; \ rm -f $$d/qemu-options.def; \ done @@ -331,7 +352,7 @@ install-confdir: install-sysconfig: install-datadir install-confdir $(INSTALL_DATA) $(SRC_PATH)/sysconfigs/target/target-x86_64.conf "$(DESTDIR)$(qemu_confdir)" -install: all $(if $(BUILD_DOCS),install-doc) install-sysconfig install-datadir +install: all $(if $(BUILD_DOCS),install-doc) install-sysconfig install-datadir $(if $(CONFIG_LIBQBLOCK),install-libqblock) $(INSTALL_DIR) "$(DESTDIR)$(bindir)" ifneq ($(TOOLS),) $(INSTALL_PROG) $(STRIP_OPT) $(TOOLS) "$(DESTDIR)$(bindir)" diff --git a/configure b/configure index 801585c..b0bf912 100755 --- a/configure +++ b/configure @@ -223,6 +223,7 @@ libiscsi="" coroutine="" seccomp="" glusterfs="" +libqblock="" # parse CC options first for opt do @@ -871,6 +872,10 @@ for opt do ;; --enable-glusterfs) glusterfs="yes" ;; + --disable-libqblock) libqblock="no" + ;; + --enable-libqblock) libqblock="yes" + ;; *) echo "ERROR: unknown option $opt"; show_help="yes" ;; esac @@ -1119,6 +1124,8 @@ echo " --with-coroutine=BACKEND coroutine backend. Supported options:" echo " gthread, ucontext, sigaltstack, windows" echo " --enable-glusterfs enable GlusterFS backend" echo " --disable-glusterfs disable GlusterFS backend" +echo " --enable-libqblock enable dynamic library libqblock" +echo " --disable-libqblock disable dynamic library libqblock" echo "" echo "NOTE: The object files are built at the place where configure is launched" exit 1 @@ -2349,6 +2356,28 @@ EOF fi fi +########################################## +# libqblock probe +if test "$libqblock" == "yes" ; then + # if it is set to yes by user, check whether libtool exist + if ! has $libtool; then + echo + echo "ERROR: Libqblock needs libtool, but libtool was not found." + echo "Make sure libtool was installed, or disable libqblock." + echo + exit 1 + fi +fi + +if test "$libqblock" == "" ; then + # libqblock depends on libtool, default to yes if libtool exist + if ! has $libtool; then + libqblock="no" + else + libqblock="yes" + fi +fi + # # Check for xxxat() functions when we are building linux-user # emulator. This is done because older glibc versions don't @@ -3101,6 +3130,9 @@ if test "$want_tools" = "yes" ; then if [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" ] ; then tools="qemu-nbd\$(EXESUF) $tools" fi + if test "$libqblock" = "yes" ; then + tools="subdir-libqblock $tools" + fi fi if test "$softmmu" = yes ; then if test "$virtfs" != no ; then @@ -3235,6 +3267,7 @@ echo "build guest agent $guest_agent" echo "seccomp support $seccomp" echo "coroutine backend $coroutine_backend" echo "GlusterFS support $glusterfs" +echo "libqblock support $libqblock" if test "$sdl_too_old" = "yes"; then echo "-> Your SDL version is too old - please upgrade to have SDL support" @@ -3581,6 +3614,10 @@ if test "$glusterfs" = "yes" ; then echo "CONFIG_GLUSTERFS=y" >> $config_host_mak fi +if test "$libqblock" = "yes" ; then + echo "CONFIG_LIBQBLOCK=y" >> $config_host_mak +fi + # USB host support case "$usb" in linux) @@ -4166,12 +4203,14 @@ DIRS="$DIRS pc-bios/optionrom pc-bios/spapr-rtas" DIRS="$DIRS roms/seabios roms/vgabios" DIRS="$DIRS qapi-generated" DIRS="$DIRS libcacard libcacard/libcacard libcacard/trace" +DIRS="$DIRS libqblock" FILES="Makefile tests/Makefile tests/tcg/Makefile qdict-test-data.txt" FILES="$FILES tests/tcg/cris/Makefile tests/tcg/cris/.gdbinit" FILES="$FILES tests/tcg/lm32/Makefile libcacard/Makefile" FILES="$FILES pc-bios/optionrom/Makefile pc-bios/keymaps" FILES="$FILES pc-bios/spapr-rtas/Makefile" FILES="$FILES roms/seabios/Makefile roms/vgabios/Makefile" +FILES="$FILES libqblock/Makefile" for bios_file in \ $source_path/pc-bios/*.bin \ $source_path/pc-bios/*.rom \ diff --git a/libqblock/Makefile b/libqblock/Makefile new file mode 100644 index 0000000..13f9522 --- /dev/null +++ b/libqblock/Makefile @@ -0,0 +1,69 @@ +########################################################################### +# libqblock Makefile +########################################################################## +-include ../config-host.mak +-include $(SRC_PATH)/rules.mak +-include $(SRC_PATH)/Makefile.objs + +############################################################################# +# Library settings +############################################################################# +# src files are in orignial path +$(call set-vpath, $(SRC_PATH)) +# generated files are in ../ +$(call set-vpath, ../) + +#library objects +libqblock-obj-y= libqblock/libqblock.o libqblock/libqblock-error.o libqblock/libqblock-aio.o + +extra-obj-y= qemu-timer.o qemu-tool.o + +QEMU_OBJS= $(libqblock-obj-y) $(block-obj-y) $(oslib-obj-y) $(stub-obj-y) \ + $(extra-obj-y) +QEMU_OBJS_LIB= $(patsubst %.o, %.lo, $(QEMU_OBJS)) + +QEMU_CFLAGS+= -I$(SRC_PATH) -I$(SRC_PATH)/include -I../ +#adding magic macro define for symbol hiding and exposing +QEMU_CFLAGS+= -fvisibility=hidden -D LIBQB_BUILD + +#dependency libraries +LIBS+= -lz $(LIBS_TOOLS) + +#header files to be installed +libqblock_includedir= $(includedir)/qblock +libqblock_srcpath= $(SRC_PATH)/libqblock +libqblock-pub-headers= $(libqblock_srcpath)/libqblock.h \ + $(libqblock_srcpath)/libqblock-types.h \ + $(libqblock_srcpath)/libqblock-error.h + +################################################################# +# Runtime rules +################################################################# +.PHONY: clean all libqblock.la libqblock.pc install-libqblock + +clean: + rm -f *.lo *.o *.d *.la *.pc + rm -rf .libs block trace audio fsdev hw net qapi qga qom slirp ui libqblock stubs backends + +all: libqblock.la libqblock.pc +# Dummy command so that make thinks it has done something + @true + +libqblock.la: $(QEMU_OBJS_LIB) + $(call quiet-command,$(LIBTOOL) --mode=link --quiet --tag=CC $(CC) -rpath $(libdir) -o $@ $^ $(LIBS)," lt LINK $@") + +libqblock.pc: $(libqblock_srcpath)/libqblock.pc.in + $(call quiet-command,sed -e 's|@LIBDIR@|$(libdir)|' \ + -e 's|@INCLUDEDIR@|$(libqblock_includedir)|' \ + -e 's|@VERSION@|$(shell cat $(SRC_PATH)/VERSION)|' \ + -e 's|@PREFIX@|$(prefix)|' \ + < $(libqblock_srcpath)/libqblock.pc.in > libqblock.pc,\ + " GEN $@") + +install-libqblock: libqblock.la libqblock.pc + $(INSTALL_DIR) "$(DESTDIR)$(libdir)" + $(INSTALL_DIR) "$(DESTDIR)$(libdir)/pkgconfig" + $(INSTALL_DIR) "$(DESTDIR)$(libqblock_includedir)" + $(LIBTOOL) --mode=install $(INSTALL_DATA) libqblock.la "$(DESTDIR)$(libdir)" + $(LIBTOOL) --mode=install $(INSTALL_DATA) libqblock.pc "$(DESTDIR)$(libdir)/pkgconfig" + $(LIBTOOL) --mode=install $(INSTALL_DATA) $(libqblock-pub-headers) "$(DESTDIR)$(libqblock_includedir)" diff --git a/libqblock/libqblock-aio.c b/libqblock/libqblock-aio.c new file mode 100644 index 0000000..935fb7f --- /dev/null +++ b/libqblock/libqblock-aio.c @@ -0,0 +1,62 @@ +/* + * QEMU block layer library + * + * Copyright IBM, Corp. 2012 + * + * Authors: + * Wenchao Xia + * + * This work is licensed under the terms of the GNU LGPL, version 2 or later. + * See the COPYING.LIB file in the top-level directory. + * + */ + +#include + +#include "qemu-common.h" +#include "qemu-aio.h" +#include "main-loop.h" +#include "compatfd.h" + +void qemu_notify_event(void) +{ + return; +} + +QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque) +{ + return NULL; +} + +void qemu_aio_flush(void) +{ + return; +} + +bool qemu_aio_wait(void) +{ + return false; +} + +#ifdef CONFIG_POSIX +void qemu_aio_set_fd_handler(int fd, + IOHandler *io_read, + IOHandler *io_write, + AioFlushHandler *io_flush, + void *opaque) +{ + return; +} +#endif + +void qemu_aio_set_event_notifier(EventNotifier *notifier, + EventNotifierHandler *io_read, + AioFlushEventNotifierHandler *io_flush) +{ + return; +} + +bool qemu_signalfd_available(void) +{ + return false; +} diff --git a/libqblock/libqblock-error.c b/libqblock/libqblock-error.c new file mode 100644 index 0000000..e69de29 diff --git a/libqblock/libqblock-error.h b/libqblock/libqblock-error.h new file mode 100644 index 0000000..e69de29 diff --git a/libqblock/libqblock-types.h b/libqblock/libqblock-types.h new file mode 100644 index 0000000..e69de29 diff --git a/libqblock/libqblock.c b/libqblock/libqblock.c new file mode 100644 index 0000000..4c18c41 --- /dev/null +++ b/libqblock/libqblock.c @@ -0,0 +1,6 @@ +#include "libqblock.h" + +int libqb_test(void) +{ + return 0; +} diff --git a/libqblock/libqblock.h b/libqblock/libqblock.h new file mode 100644 index 0000000..b0f9daf --- /dev/null +++ b/libqblock/libqblock.h @@ -0,0 +1 @@ +__attribute__((visibility("default"))) int libqb_test(void); diff --git a/libqblock/libqblock.pc.in b/libqblock/libqblock.pc.in new file mode 100644 index 0000000..d2a7d06 --- /dev/null +++ b/libqblock/libqblock.pc.in @@ -0,0 +1,13 @@ +prefix=@PREFIX@ +exec_prefix=${prefix} +libdir=@LIBDIR@ +includedir=@INCLUDEDIR@ + +Name: qblock +Description: QEMU block layer library +Version: @VERSION@ + +Requires: rt gthread-2.0 glib-2.0 z curl cap-ng uuid +Libs: -L${libdir} -lqblock +Libs.private: +Cflags: -I${includedir} diff --git a/tests/Makefile b/tests/Makefile index fc816d0..76de5f4 100644 --- a/tests/Makefile +++ b/tests/Makefile @@ -88,6 +88,20 @@ check-qtest-$(CONFIG_POSIX)=$(foreach TARGET,$(TARGETS), $(check-qtest-$(TARGET) qtest-obj-y = tests/libqtest.o $(oslib-obj-y) libqemustub.a $(check-qtest-y): $(qtest-obj-y) +#libqblock build rules +check-libqblock-$(CONFIG_LIBQBLOCK) = tests/check-libqblock-qcow2$(EXESUF) + +$(check-libqblock-y): QEMU_INCLUDES += -I$(SRC_PATH)/tests -I$(SRC_PATH)/libqblock +LIBQBLOCK_TEST_DIR = tests/test_images +LIBQBLOCK_LA = libqblock/libqblock.la + +LTLINK = $(call quiet-command, $(LIBTOOL) --mode=link --quiet --tag=CC \ + $(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) \ + -o $@ $(sort $(1)) $(LIBS), "lt LINK $(TARGET_DIR)$@") + +$(check-libqblock-y): %$(EXESUF): %.o + $(call LTLINK, $^ $(LIBQBLOCK_LA)) + .PHONY: check-help check-help: @echo "Regression testing targets:" @@ -98,6 +112,7 @@ check-help: @echo " make check-unit Run qobject tests" @echo " make check-block Run block tests" @echo " make check-report.html Generates an HTML test report" + @echo " make check-libqblock Run libqblock tests" @echo " make check-clean Clean the tests" @echo @echo "Please note that HTML reports do not regenerate if the unit tests" @@ -130,6 +145,15 @@ $(patsubst %, check-report-qtest-%.xml, $(QTEST_TARGETS)): check-report-qtest-%. check-report-unit.xml: $(check-unit-y) $(call quiet-command,gtester -q $(GTESTER_OPTIONS) -o $@ -m=$(SPEED) $^, "GTESTER $@") +# gtester tests with libqblock + +# remove quite option to show error if program is terminated by seg fault, otherwise it fails silently. +GTESTER_OPTIONS_LIBQBLOCK:= -k + +.PHONY: $(patsubst %, check-%, $(check-libqblock-y)) +$(patsubst %, check-%, $(check-libqblock-y)): check-%: % + $(call quiet-command, LIBQBLOCK_TEST_DIR=$(LIBQBLOCK_TEST_DIR) gtester $(GTESTER_OPTIONS_LIBQBLOCK) -m=$(SPEED) $*,"GTESTER $*") + # Reports and overall runs check-report.xml: $(patsubst %,check-report-qtest-%.xml, $(QTEST_TARGETS)) check-report-unit.xml @@ -147,16 +171,19 @@ check-tests/qemu-iotests-quick.sh: tests/qemu-iotests-quick.sh qemu-img$(EXESUF) # Consolidated targets -.PHONY: check-qtest check-unit check +.PHONY: check-qtest check-unit check check-libqblock check-clean check-qtest: $(patsubst %,check-qtest-%, $(QTEST_TARGETS)) check-unit: $(patsubst %,check-%, $(check-unit-y)) check-block: $(patsubst %,check-%, $(check-block-y)) -check: check-unit check-qtest +check-libqblock: $(patsubst %,check-%, $(check-libqblock-y)) +check: check-libqblock check-unit check-qtest check-clean: $(MAKE) -C tests/tcg clean rm -f $(check-unit-y) rm -f $(check-qtest-i386-y) $(check-qtest-x86_64-y) $(check-qtest-sparc64-y) $(check-qtest-sparc-y) rm -f tests/*.o + rm -f $(check-libqblock-y) + rm -rf $(LIBQBLOCK_TEST_DIR) -include $(wildcard tests/*.d) diff --git a/tests/check-libqblock-qcow2.c b/tests/check-libqblock-qcow2.c new file mode 100644 index 0000000..50a4df3 --- /dev/null +++ b/tests/check-libqblock-qcow2.c @@ -0,0 +1,6 @@ +#include "libqblock.h" +int main(int argc, char **argv) +{ + libqb_test(); + return 0; +}