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xemu/pc-bios/s390-ccw/Makefile

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S390: ccw firmware: Add Makefile This patch adds a makefile, so we can build our ccw firmware. Also add the resulting binaries to .gitignore, so that nobody is annoyed they might be in the tree. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-22 19:03:39 +00:00
all: build-all
# Dummy command so that make thinks it has done something
@true
include ../../config-host.mak
include $(SRC_PATH)/rules.mak
$(call set-vpath, $(SRC_PATH)/pc-bios/s390-ccw)
.PHONY : all clean build-all
s390/bios: Make the s390-ccw.img relocatable The current bios sits at location 0x7e00000 in the guest RAM and thus prevents loading of bigger ramdisks. By making the image relocatable we can move it to the end of the RAM so that it is getting out of the way. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Message-Id: <1425895973-15239-3-git-send-email-thuth@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> [Fixup build failure on 32 bit hosts]
2015-03-09 10:12:53 +00:00
OBJECTS = start.o main.o bootmap.o sclp-ascii.o virtio.o
pc-bios/s390-ccw: build for z900 Newer distributions have an architecture level set to z9, z196 or similar - also as default option for the compiler. We should build the bios for z900 to allow it to run with all 64bit CPUs. This will become more important as soon as QEMU/KVM does support CPU models. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-By: Sascha Silbe <silbe@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-10-13 13:10:46 +00:00
CFLAGS += -fPIE -fno-stack-protector -ffreestanding -march=z900
pc-bios/s390-ccw: avoid floating point operations Some gcc versions (e.g. Fedora 22 gcc 5.1.1) seem to use floating point registers for spilling and filling of general purpose registers. As the BIOS does not activate the AFP register setting of CR0 this can cause data exception program checks. Disallow floating point in the BIOS as a simple solution. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Message-Id: <1443689387-34473-2-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2015-10-01 08:49:43 +00:00
CFLAGS += -fno-delete-null-pointer-checks -msoft-float
s390/bios: Make the s390-ccw.img relocatable The current bios sits at location 0x7e00000 in the guest RAM and thus prevents loading of bigger ramdisks. By making the image relocatable we can move it to the end of the RAM so that it is getting out of the way. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Message-Id: <1425895973-15239-3-git-send-email-thuth@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> [Fixup build failure on 32 bit hosts]
2015-03-09 10:12:53 +00:00
LDFLAGS += -Wl,-pie -nostdlib
S390: ccw firmware: Add Makefile This patch adds a makefile, so we can build our ccw firmware. Also add the resulting binaries to .gitignore, so that nobody is annoyed they might be in the tree. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-22 19:03:39 +00:00
build-all: s390-ccw.img
s390-ccw.elf: $(OBJECTS)
$(call quiet-command,$(CC) $(LDFLAGS) -o $@ $(OBJECTS)," Building $(TARGET_DIR)$@")
s390-ccw.img: s390-ccw.elf
s390/bios: Make the s390-ccw.img relocatable The current bios sits at location 0x7e00000 in the guest RAM and thus prevents loading of bigger ramdisks. By making the image relocatable we can move it to the end of the RAM so that it is getting out of the way. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Message-Id: <1425895973-15239-3-git-send-email-thuth@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> [Fixup build failure on 32 bit hosts]
2015-03-09 10:12:53 +00:00
$(call quiet-command,strip --strip-unneeded $< -o $@," Stripping $(TARGET_DIR)$@")
$(OBJECTS): Makefile
S390: ccw firmware: Add Makefile This patch adds a makefile, so we can build our ccw firmware. Also add the resulting binaries to .gitignore, so that nobody is annoyed they might be in the tree. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-22 19:03:39 +00:00
clean:
s390-ccw.img: Take care of the elf->img transition We have to call strip with s390-ccw.elf as input and s390-ccw.img as output Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-23 01:23:05 +00:00
rm -f *.o *.d *.img *.elf *~
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