SCSI, build system patches for 2022-07-13

[PULL 20/20] pc-bios/s390-ccw: add -Wno-array-bounds

Paolo Bonzini posted 20 patches 3 years, 7 months ago

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Maintainers: "Alex Bennée" <alex.bennee@linaro.org>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, Thomas Huth <thuth@redhat.com>, Wainer dos Santos Moschetta <wainersm@redhat.com>, Beraldo Leal <bleal@redhat.com>, Laurent Vivier <laurent@vivier.eu>, Paolo Bonzini <pbonzini@redhat.com>, Fam Zheng <fam@euphon.net>, Christian Borntraeger <borntraeger@linux.ibm.com>, Cornelia Huck <cohuck@redhat.com>, John Snow <jsnow@redhat.com>, Cleber Rosa <crosa@redhat.com>, Alexander Bulekov <alxndr@bu.edu>, Bandan Das <bsd@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Darren Kenny <darren.kenny@oracle.com>, Qiuhao Li <Qiuhao.Li@outlook.com>

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[PULL 20/20] pc-bios/s390-ccw: add -Wno-array-bounds

Posted by Paolo Bonzini 3 years, 7 months ago

The option generates a lot of warnings for integers casted to pointers,
for example:

/home/pbonzini/work/upstream/qemu/pc-bios/s390-ccw/dasd-ipl.c:174:19: warning: array subscript 0 is outside array bounds of ‘CcwSeekData[0]’ [-Warray-bounds]
  174 |     seekData->cyl = 0x00;
      |     ~~~~~~~~~~~~~~^~~~~~

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 pc-bios/s390-ccw/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile
index 26ad40f94e..c8784c2a08 100644
--- a/pc-bios/s390-ccw/Makefile
+++ b/pc-bios/s390-ccw/Makefile
@@ -35,6 +35,7 @@ EXTRA_CFLAGS += $(call cc-option,-Werror $(EXTRA_CFLAGS),-Wno-stringop-overflow)
 EXTRA_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE
 EXTRA_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
 EXTRA_CFLAGS += $(call cc-option, $(EXTRA_CFLAGS), -fno-stack-protector)
+EXTRA_CFLAGS += $(call cc-option, $(EXTRA_CFLAGS), -Wno-array-bounds)
 EXTRA_CFLAGS += -msoft-float
 EXTRA_CFLAGS += $(call cc-option, $(EXTRA_CFLAGS),-march=z900,-march=z10)
 EXTRA_CFLAGS += -std=gnu99
-- 
2.36.1