From: Thomas Huth <thuth@redhat.com>
To: qemu-s390x@nongnu.org, qemu-devel@nongnu.org
Cc: "Jason J . Herne" <jjherne@linux.ibm.com>,
Thomas Huth <thuth@redhat.com>,
Janosch Frank <frankja@linux.ibm.com>,
Cornelia Huck <cohuck@redhat.com>,
Collin Walling <walling@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>
Subject: [PATCH for-5.2 1/6] pc-bios/s390-ccw/Makefile: Compile with -std=gnu99, -fwrapv and -fno-common
Date: Tue, 28 Jul 2020 20:37:29 +0200 [thread overview]
Message-ID: <20200728183734.7838-2-thuth@redhat.com> (raw)
In-Reply-To: <20200728183734.7838-1-thuth@redhat.com>
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.
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
pc-bios/s390-ccw/Makefile | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile
index 50bc880272..9abb0ea4c0 100644
--- a/pc-bios/s390-ccw/Makefile
+++ b/pc-bios/s390-ccw/Makefile
@@ -13,10 +13,11 @@ 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
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 += -fno-asynchronous-unwind-tables
+QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE
+QEMU_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector)
+QEMU_CFLAGS += -msoft-float -march=z900
+QEMU_CFLAGS += -std=gnu99
LDFLAGS += -Wl,-pie -nostdlib
build-all: s390-ccw.img s390-netboot.img
--
2.18.1
next prev parent reply other threads:[~2020-07-28 18:40 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-28 18:37 [PATCH for-5.2 0/6] Continue booting in case the first device is not bootable Thomas Huth
2020-07-28 18:37 ` Thomas Huth [this message]
2020-07-29 8:00 ` [PATCH for-5.2 1/6] pc-bios/s390-ccw/Makefile: Compile with -std=gnu99, -fwrapv and -fno-common Claudio Imbrenda
2020-07-29 8:34 ` Cornelia Huck
2020-07-31 7:46 ` Janosch Frank
2020-07-31 7:51 ` Thomas Huth
2020-07-28 18:37 ` [PATCH for-5.2 2/6] pc-bios/s390-ccw: Move ipl-related code from main() into a separate function Thomas Huth
2020-07-29 8:01 ` Claudio Imbrenda
2020-07-29 8:47 ` Cornelia Huck
2020-07-29 11:05 ` Thomas Huth
2020-08-05 9:16 ` Cornelia Huck
2020-08-04 12:52 ` Janosch Frank
2020-07-28 18:37 ` [PATCH for-5.2 3/6] pc-bios/s390-ccw: Move the inner logic of find_subch() to " Thomas Huth
2020-07-29 8:54 ` Cornelia Huck
2020-07-29 11:13 ` Thomas Huth
2020-08-05 9:19 ` Cornelia Huck
2020-08-03 8:46 ` Claudio Imbrenda
2020-08-04 13:24 ` Thomas Huth
2020-08-04 15:30 ` Claudio Imbrenda
2020-08-04 13:26 ` Janosch Frank
2020-07-28 18:37 ` [PATCH for-5.2 4/6] pc-bios/s390-ccw: Do not bail out early if not finding a SCSI disk Thomas Huth
2020-07-29 10:03 ` Cornelia Huck
2020-07-28 18:37 ` [PATCH for-5.2 5/6] pc-bios/s390-ccw: Scan through all boot devices if none has been specified Thomas Huth
2020-08-04 11:06 ` Claudio Imbrenda
2020-08-05 9:36 ` Cornelia Huck
2020-08-05 9:39 ` Thomas Huth
2020-07-28 18:37 ` [PATCH for-5.2 6/6] pc-bios/s390-ccw: Allow booting in case the first virtio-blk disk is bad Thomas Huth
2020-08-05 10:04 ` Cornelia Huck
2020-08-05 10:08 ` Thomas Huth
2020-08-05 10:27 ` Cornelia Huck
2020-07-29 10:10 ` [PATCH for-5.2 0/6] Continue booting in case the first device is not bootable Cornelia Huck
2020-07-29 11:42 ` Viktor Mihajlovski
2020-07-29 17:17 ` Cornelia Huck
2020-07-30 4:39 ` Thomas Huth
2020-08-04 14:49 ` Janosch Frank
2020-08-04 15:19 ` Thomas Huth
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