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pc-bios/s390-ccw/Makefile: Compile with -std=gnu99, -fwrapv and -fno-common 

The main QEMU code is compiled with -std=gnu99, -fwrapv and -fno-common.
We should use the same flags for the s390-ccw bios, too, to avoid that
we get different behavior with different compiler versions that changed
their default settings in the course of time (it happened at least with
-std=... and -fno-common in the past already).

While we're at it, also group the other flags here in a little bit nicer
fashion: Move the two "-m" flags out of the "-f" area and specify them on
a separate line.

Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Message-Id: <20200806105349.632-2-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Thomas Huth 2020-07-28 13:24:11 +02:00
parent d7c5b78829
commit 4f6a1eb886
1 changed files with 4 additions and 3 deletions
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7
pc-bios/s390-ccw/Makefile
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@ -30,10 +30,11 @@ OBJECTS = start.o main.o bootmap.o jump2ipl.o sclp.o menu.o \
virtio.o virtio-scsi.o virtio-blkdev.o libc.o cio.o dasd-ipl.o virtio.o virtio-scsi.o virtio-blkdev.o libc.o cio.o dasd-ipl.o
QEMU_CFLAGS := -Wall $(filter -W%, $(QEMU_CFLAGS)) QEMU_CFLAGS := -Wall $(filter -W%, $(QEMU_CFLAGS))
QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -msoft-float QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE
QEMU_CFLAGS += -march=z900 -fPIE -fno-strict-aliasing QEMU_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
QEMU_CFLAGS += -fno-asynchronous-unwind-tables
QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector) QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector)
QEMU_CFLAGS += -msoft-float -march=z900
QEMU_CFLAGS += -std=gnu99
LDFLAGS += -Wl,-pie -nostdlib LDFLAGS += -Wl,-pie -nostdlib
build-all: s390-ccw.img s390-netboot.img build-all: s390-ccw.img s390-netboot.img