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compile warning in i8259.c
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From: |
Christian Borntraeger |
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Subject: |
compile warning in i8259.c |
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Date: |
Mon, 15 Mar 2021 16:14:48 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 |
For some time now I do see the following, when I compile x86-softmmu on s390:
FAILED: libcommon.fa.p/hw_intc_i8259.c.o
cc -Ilibcommon.fa.p -I. -I.. -Iqapi -Itrace -Iui -Iui/shader
-I/usr/include/capstone -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include
-I/usr/include/libmount -I/usr/include/blkid -I/usr/include/gio-unix-2.0
-I/usr/include/libusb-1.0 -I/usr/include/vte-2.91 -I/usr/include/pango-1.0
-I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/libpng16
-I/usr/include/fribidi -I/usr/include/libxml2 -I/usr/include/cairo
-I/usr/include/pixman-1 -I/usr/include/gtk-3.0 -I/usr/include/gdk-pixbuf-2.0
-I/usr/include/atk-1.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/dbus-1.0
-I/usr/lib64/dbus-1.0/include -I/usr/include/at-spi-2.0 -I/usr/include/virgl
-I/usr/include/p11-kit-1 -I/usr/include/SDL2 -I/usr/include/cacard
-I/usr/include/nss3 -I/usr/include/nspr4 -I/usr/include/slirp
-fdiagnostics-color=auto -pipe -Wall -Winvalid-pch -Werror -std=gnu99 -O2 -g
-isystem /home/cborntra/REPOS/qemu/linux-headers -isystem linux-headers -iquote
. -iquote /home/cborntra/REPOS/qemu -iquote /home/cborntra/REPOS/qemu/include
-iquote /home/cborntra/REPOS/qemu/disas/libvixl -iquote
/home/cborntra/REPOS/qemu/tcg/s390 -iquote /home/cborntra/REPOS/qemu/accel/tcg
-pthread -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -m64 -D_GNU_SOURCE
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes
-Wredundant-decls -Wundef -Wwrite-strings -Wmissing-prototypes
-fno-strict-aliasing -fno-common -fwrapv -Wold-style-declaration
-Wold-style-definition -Wtype-limits -Wformat-security -Wformat-y2k -Winit-self
-Wignored-qualifiers -Wempty-body -Wnested-externs -Wendif-labels
-Wexpansion-to-defined -Wimplicit-fallthrough=2 -Wno-missing-include-dirs
-Wno-shift-negative-value -Wno-psabi -fstack-protector-strong -fPIC
-DSTRUCT_IOVEC_DEFINED -D_REENTRANT -Wno-undef -D_DEFAULT_SOURCE
-D_XOPEN_SOURCE=600 -DNCURSES_WIDECHAR -MD -MQ libcommon.fa.p/hw_intc_i8259.c.o
-MF libcommon.fa.p/hw_intc_i8259.c.o.d -o libcommon.fa.p/hw_intc_i8259.c.o -c
../hw/intc/i8259.c
../hw/intc/i8259.c: In function ‘pic_read_irq’:
../hw/intc/i8259.c:203:13: error: ‘irq2’ may be used uninitialized in this
function [-Werror=maybe-uninitialized]
203 | irq = irq2 + 8;
| ~~~~^~~~~~~~~~
cc1: all warnings being treated as errors
Due to other compile warnings I find this hard to bisect. Has anyone seen this
as well?