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https://github.com/ibm-s390-linux/s390-tools.git
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7dd03eaeec
Some Linux distributions always include a copy of all persistent device configuration data when updating the initial RAM-disk. This makes chzdev's persistent device configuration changes ineffective because device configuration directives applied in the RAM-disk take precedence over those stored in the root filesystem. This patch introduces a new build-time switch which allows distributions to specify that whenever there is a persistent device configuration change, the RAM-disk is updated automatically. This feature can be enabled by adding 'ZDEV_ALWAYS_UPDATE_INITRD=1' as a zdev build option. Where, by default ZDEV_ALWAYS_UPDATE_INITRD is 0. Co-developed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
111 lines
2.8 KiB
Makefile
111 lines
2.8 KiB
Makefile
# Common definitions
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include ../../common.mak
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ALL_CPPFLAGS += -I ../include -std=gnu99 -Wno-unused-parameter \
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-Wno-missing-field-initializers
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# Adding ZDEV_ALWAYS_UPDATE_INITRD=1 option will update the initial RAM-disk
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# without the user interaction upon the modification of a persistent device
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# configuration.
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ifeq ($(ZDEV_ALWAYS_UPDATE_INITRD),1)
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ALL_CPPFLAGS += -DZDEV_ALWAYS_UPDATE_INITRD=true
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else
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ALL_CPPFLAGS += -DZDEV_ALWAYS_UPDATE_INITRD=false
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endif
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# Core
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chzdev_objects += attrib.o chzdev.o device.o devnode.o devtype.o exit_code.o \
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export.o hash.o inuse.o misc.o namespace.o opts.o path.o \
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root.o select.o setting.o subtype.o table.o table_attribs.o \
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table_types.o net.o firmware.o internal.o
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# Devtype Helpers
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chzdev_objects += blkinfo.o ccw.o ccwgroup.o findmnt.o modprobe.o module.o \
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udev.o udev_ccw.o udev_ccwgroup.o iscsi.o
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# DASD devtype
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chzdev_objects += dasd.o
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# FCP devtype
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chzdev_objects += zfcp.o zfcp_host.o
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chzdev_objects += scsi.o udev_zfcp_lun.o zfcp_lun.o
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# QETH devtype
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chzdev_objects += nic.o qeth.o qeth_auto.o
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# CTC devtype
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chzdev_objects += ctc.o ctc_auto.o
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# LCS devtype
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chzdev_objects += lcs.o lcs_auto.o
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# Generic CCW devtype
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chzdev_objects += generic_ccw.o
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# Core
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lszdev_objects += attrib.o lszdev.o device.o devnode.o devtype.o exit_code.o \
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export.o hash.o inuse.o misc.o namespace.o opts.o path.o \
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root.o select.o setting.o subtype.o table.o table_types.o \
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net.o internal.o
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# Devtype Helpers
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lszdev_objects += blkinfo.o ccw.o ccwgroup.o findmnt.o modprobe.o module.o \
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udev.o udev_ccw.o udev_ccwgroup.o iscsi.o
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# DASD devtype
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lszdev_objects += dasd.o
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# FCP devtype
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lszdev_objects += zfcp.o zfcp_host.o
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lszdev_objects += scsi.o udev_zfcp_lun.o zfcp_lun.o
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# QETH devtype
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lszdev_objects += nic.o qeth.o qeth_auto.o
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# CTC devtype
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lszdev_objects += ctc.o ctc_auto.o
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# LCS devtype
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lszdev_objects += lcs.o lcs_auto.o
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# Generic CCW devtype
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lszdev_objects += generic_ccw.o
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all: chzdev lszdev
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chzdev_usage.c: chzdev_usage.txt
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$(SED) $< >$@ -e 's/\\/\\\\/g' -e 's/"/\\"/g' -e 's/^/"/g' \
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-e 's/$$/\\n"/g'
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.chzdev.o.d: chzdev_usage.c
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lszdev_usage.c: lszdev_usage.txt
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$(SED) $< >$@ -e 's/\\/\\\\/g' -e 's/"/\\"/g' -e 's/^/"/g' \
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-e 's/$$/\\n"/g'
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.lszdev.o.d: lszdev_usage.c
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chzdev.o: chzdev_usage.c
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lszdev.o: lszdev_usage.c
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libs = $(rootdir)/libutil/libutil.a
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chzdev: $(chzdev_objects) $(libs)
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lszdev: $(lszdev_objects) $(libs)
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install: chzdev
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$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR)
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$(INSTALL) -c chzdev $(DESTDIR)$(BINDIR)
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$(INSTALL) -c lszdev $(DESTDIR)$(BINDIR)
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ifeq ($(HAVE_DRACUT),1)
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$(INSTALL) -m 755 zdev-root-update.dracut \
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$(DESTDIR)$(TOOLS_LIBDIR)/zdev-root-update
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endif
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clean:
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@rm -f *.o chzdev lszdev chzdev_usage.c lszdev_usage.c gmon.out *.gcda *.gcno
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.PHONY: all install clean
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