diff options
| author | Thomas Huth <thuth@redhat.com> | 2022-07-04 13:19:03 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2022-07-06 18:35:34 +0200 |
| commit | e2269220acb03e6c6a460c3090d804835e202239 (patch) | |
| tree | bf9d0fc06d0016e305e067b8012dcb4151c56310 /pc-bios | |
| parent | 3953ae186880473df802a7bdf8e855807cc7d59e (diff) | |
pc-bios/s390-ccw/netboot.mak: Ignore Clang's warnings about GNU extensions
When compiling the s390-ccw bios with Clang (v14.0), there is currently
an unuseful warning like this:
CC pc-bios/s390-ccw/ipv6.o
../../roms/SLOF/lib/libnet/ipv6.c:447:18: warning: variable length array
folded to constant array as an extension [-Wgnu-folding-constant]
unsigned short raw[ip6size];
^
SLOF is currently GCC-only and cannot be compiled with Clang yet, so
it is expected that such extensions sneak in there - and as long as
we don't want to compile the code with a compiler that is neither GCC
or Clang, it is also not necessary to avoid such extensions.
Thus these GNU-extension related warnings are completely useless in
the s390-ccw bios, especially in the code that is coming from SLOF,
so we should simply disable the related warnings here now.
Message-Id: <20220704111903.62400-13-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'pc-bios')
| -rw-r--r-- | pc-bios/s390-ccw/netboot.mak | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/pc-bios/s390-ccw/netboot.mak b/pc-bios/s390-ccw/netboot.mak index 1a06befa4b..057f13bdb4 100644 --- a/pc-bios/s390-ccw/netboot.mak +++ b/pc-bios/s390-ccw/netboot.mak @@ -16,9 +16,12 @@ s390-netboot.elf: $(NETOBJS) libnet.a libc.a s390-netboot.img: s390-netboot.elf $(call quiet-command,$(STRIP) --strip-unneeded $< -o $@,"STRIP","$(TARGET_DIR)$@") +# SLOF is GCC-only, so ignore warnings about GNU extensions with Clang here +NO_GNU_WARN := $(call cc-option,-Werror $(QEMU_CFLAGS),-Wno-gnu) + # libc files: -LIBC_CFLAGS = $(QEMU_CFLAGS) $(CFLAGS) $(LIBC_INC) $(LIBNET_INC) \ +LIBC_CFLAGS = $(QEMU_CFLAGS) $(CFLAGS) $(NO_GNU_WARN) $(LIBC_INC) $(LIBNET_INC) \ -MMD -MP -MT $@ -MF $(@:%.o=%.d) CTYPE_OBJS = isdigit.o isxdigit.o toupper.o @@ -52,7 +55,7 @@ libc.a: $(LIBCOBJS) LIBNETOBJS := args.o dhcp.o dns.o icmpv6.o ipv6.o tcp.o udp.o bootp.o \ dhcpv6.o ethernet.o ipv4.o ndp.o tftp.o pxelinux.o -LIBNETCFLAGS = $(QEMU_CFLAGS) $(CFLAGS) $(LIBC_INC) $(LIBNET_INC) \ +LIBNETCFLAGS = $(QEMU_CFLAGS) $(CFLAGS) $(NO_GNU_WARN) $(LIBC_INC) $(LIBNET_INC) \ -DDHCPARCH=0x1F -MMD -MP -MT $@ -MF $(@:%.o=%.d) %.o : $(SLOF_DIR)/lib/libnet/%.c |