| Message ID | 1471258997-5811-1-git-send-email-borntraeger@de.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, 15 Aug 2016 13:03:17 +0200 Christian Borntraeger <borntraeger@de.ibm.com> wrote: > Since > commit a9c87304b76d ("build-sys: fix building with make CFLAGS=.. argument") > > pc-bios/s390-ccw.img build might fail with > > --- snip --- > main.o: In function `virtio_setup': > qemu/pc-bios/s390-ccw/main.c:117: undefined reference to `__stack_chk_fail' > --- snip --- > > Changing the CFLAGS to QEMU_CFLAGS does the trick. We also need to > add -fno-strict-aliasing as this was filtered out. > > Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> > --- > V1->V2: use fno-strict-aliasing instead of changing the code > pc-bios/s390-ccw/Makefile | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) Thanks, applied.
On 15/08/2016 13:03, Christian Borntraeger wrote: > Since > commit a9c87304b76d ("build-sys: fix building with make CFLAGS=.. argument") > > pc-bios/s390-ccw.img build might fail with > > --- snip --- > main.o: In function `virtio_setup': > qemu/pc-bios/s390-ccw/main.c:117: undefined reference to `__stack_chk_fail' > --- snip --- > > Changing the CFLAGS to QEMU_CFLAGS does the trick. We also need to > add -fno-strict-aliasing as this was filtered out. > > Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> > --- > V1->V2: use fno-strict-aliasing instead of changing the code > pc-bios/s390-ccw/Makefile | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile > index 4208cb4..0ab2538 100644 > --- a/pc-bios/s390-ccw/Makefile > +++ b/pc-bios/s390-ccw/Makefile > @@ -10,8 +10,10 @@ $(call set-vpath, $(SRC_PATH)/pc-bios/s390-ccw) > .PHONY : all clean build-all > > OBJECTS = start.o main.o bootmap.o sclp-ascii.o virtio.o virtio-scsi.o > -CFLAGS += -fPIE -fno-stack-protector -ffreestanding -march=z900 > -CFLAGS += -fno-delete-null-pointer-checks -msoft-float > +QEMU_CFLAGS := $(filter -W%, $(QEMU_CFLAGS)) > +QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -msoft-float > +QEMU_CFLAGS += -march=z900 -fPIE -fno-strict-aliasing > +QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector) > LDFLAGS += -Wl,-pie -nostdlib > > build-all: s390-ccw.img > Looks pretty much like pc-bios/optionrom/Makefile with respect to C compiler flags. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
On Wed, 17 Aug 2016 12:57:47 +0200 Paolo Bonzini <pbonzini@redhat.com> wrote: > On 15/08/2016 13:03, Christian Borntraeger wrote: > > Since > > commit a9c87304b76d ("build-sys: fix building with make CFLAGS=.. argument") > > > > pc-bios/s390-ccw.img build might fail with > > > > --- snip --- > > main.o: In function `virtio_setup': > > qemu/pc-bios/s390-ccw/main.c:117: undefined reference to `__stack_chk_fail' > > --- snip --- > > > > Changing the CFLAGS to QEMU_CFLAGS does the trick. We also need to > > add -fno-strict-aliasing as this was filtered out. > > > > Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> > > --- > > V1->V2: use fno-strict-aliasing instead of changing the code > > pc-bios/s390-ccw/Makefile | 6 ++++-- > > 1 file changed, 4 insertions(+), 2 deletions(-) > > > > diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile > > index 4208cb4..0ab2538 100644 > > --- a/pc-bios/s390-ccw/Makefile > > +++ b/pc-bios/s390-ccw/Makefile > > @@ -10,8 +10,10 @@ $(call set-vpath, $(SRC_PATH)/pc-bios/s390-ccw) > > .PHONY : all clean build-all > > > > OBJECTS = start.o main.o bootmap.o sclp-ascii.o virtio.o virtio-scsi.o > > -CFLAGS += -fPIE -fno-stack-protector -ffreestanding -march=z900 > > -CFLAGS += -fno-delete-null-pointer-checks -msoft-float > > +QEMU_CFLAGS := $(filter -W%, $(QEMU_CFLAGS)) > > +QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -msoft-float > > +QEMU_CFLAGS += -march=z900 -fPIE -fno-strict-aliasing > > +QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector) > > LDFLAGS += -Wl,-pie -nostdlib > > > > build-all: s390-ccw.img > > > > Looks pretty much like pc-bios/optionrom/Makefile with respect to C > compiler flags. > > Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Yes, that's also what I thought, so I already pushed it upstream :) Still, thanks for the review!
diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile index 4208cb4..0ab2538 100644 --- a/pc-bios/s390-ccw/Makefile +++ b/pc-bios/s390-ccw/Makefile @@ -10,8 +10,10 @@ $(call set-vpath, $(SRC_PATH)/pc-bios/s390-ccw) .PHONY : all clean build-all OBJECTS = start.o main.o bootmap.o sclp-ascii.o virtio.o virtio-scsi.o -CFLAGS += -fPIE -fno-stack-protector -ffreestanding -march=z900 -CFLAGS += -fno-delete-null-pointer-checks -msoft-float +QEMU_CFLAGS := $(filter -W%, $(QEMU_CFLAGS)) +QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -msoft-float +QEMU_CFLAGS += -march=z900 -fPIE -fno-strict-aliasing +QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector) LDFLAGS += -Wl,-pie -nostdlib build-all: s390-ccw.img
Since commit a9c87304b76d ("build-sys: fix building with make CFLAGS=.. argument") pc-bios/s390-ccw.img build might fail with --- snip --- main.o: In function `virtio_setup': qemu/pc-bios/s390-ccw/main.c:117: undefined reference to `__stack_chk_fail' --- snip --- Changing the CFLAGS to QEMU_CFLAGS does the trick. We also need to add -fno-strict-aliasing as this was filtered out. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> --- V1->V2: use fno-strict-aliasing instead of changing the code pc-bios/s390-ccw/Makefile | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)