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From eda3b6620e779ff89df46a0fb9022016bffd7f44 Mon Sep 17 00:00:00 2001
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From: Thomas Huth <thuth@redhat.com>
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Date: Fri, 9 Oct 2020 10:08:41 -0400
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Subject: [PATCH 05/14] pc-bios/s390-ccw/Makefile: Compile with -std=gnu99,
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-fwrapv and -fno-common
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RH-Author: Thomas Huth <thuth@redhat.com>
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Message-id: <20201009100849.264994-2-thuth@redhat.com>
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Patchwork-id: 98595
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O-Subject: [RHEL-8.4.0 qemu-kvm PATCH 1/9] pc-bios/s390-ccw/Makefile: Compile with -std=gnu99, -fwrapv and -fno-common
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Bugzilla: 1846975
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RH-Acked-by: Jens Freimann <jfreimann@redhat.com>
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RH-Acked-by: David Hildenbrand <david@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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The main QEMU code is compiled with -std=gnu99, -fwrapv and -fno-common.
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We should use the same flags for the s390-ccw bios, too, to avoid that
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we get different behavior with different compiler versions that changed
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their default settings in the course of time (it happened at least with
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-std=... and -fno-common in the past already).
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While we're at it, also group the other flags here in a little bit nicer
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fashion: Move the two "-m" flags out of the "-f" area and specify them on
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a separate line.
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Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
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Acked-by: Cornelia Huck <cohuck@redhat.com>
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Acked-by: Janosch Frank <frankja@linux.ibm.com>
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Message-Id: <20200806105349.632-2-thuth@redhat.com>
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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(cherry picked from commit 4f6a1eb886961f1f9da2d553c4b0e5ef69cd3801)
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Conflicts: Simple contextual conflict due to meson reworks in upstream
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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pc-bios/s390-ccw/Makefile | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile
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index a048b6b077..e776a2a5ec 100644
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--- a/pc-bios/s390-ccw/Makefile
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+++ b/pc-bios/s390-ccw/Makefile
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@@ -13,10 +13,11 @@ OBJECTS = start.o main.o bootmap.o jump2ipl.o sclp.o menu.o \
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virtio.o virtio-scsi.o virtio-blkdev.o libc.o cio.o dasd-ipl.o
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QEMU_CFLAGS := $(filter -W%, $(QEMU_CFLAGS))
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-QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -msoft-float
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-QEMU_CFLAGS += -march=z900 -fPIE -fno-strict-aliasing
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-QEMU_CFLAGS += -fno-asynchronous-unwind-tables
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+QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE
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+QEMU_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
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QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector)
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+QEMU_CFLAGS += -msoft-float -march=z900
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+QEMU_CFLAGS += -std=gnu99
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LDFLAGS += -Wl,-pie -nostdlib
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build-all: s390-ccw.img s390-netboot.img
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--
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2.27.0
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