63 lines
2.3 KiB
Diff
63 lines
2.3 KiB
Diff
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From: =?UTF-8?q?Martin=20Li=C5=A1ka?= <martin.liska@suse.com>
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Date: Tue, 22 Mar 2022 10:52:19 +0100
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Subject: Silence GCC 12 spurious warnings
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Git-commit: 0000000000000000000000000000000000000000
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References: bsc#1197018
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With GCC 12, build fails like this:
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[ 6245s] inlined from 'memcpy_user' at
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arch/x86/include/librm.h:155:2,
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[ 6245s] inlined from 'copy_from_user' at
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include/ipxe/uaccess.h:338:2,
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[ 6245s] inlined from 'acpi_sx_zsdt' at core/acpi.c:217:3:
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[ 6245s] arch/x86/include/bits/string.h:79:32: error: array subscript
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'union <anonymous>[0]' is partly outside array bounds of 'union
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<anonymous>[1]' [-Werror=array-bounds]
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[ 6245s] 79 | dest_u->u32[0] = src_u->u32[0];
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[ 6245s] | ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
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[ 6245s] core/acpi.c: In function 'acpi_sx_zsdt':
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[ 6245s] core/acpi.c:191:11: note: object 'buf' of size 4
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[ 6245s] 191 | } buf;
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[ 6245s] | ^~~
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Which is a false positive reported by GCC compiler:
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98503
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Silence the watning.
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Signed-off-by: Martin Liška <martin.liska@suse.com>
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Signed-off-by: Dario Faggioli <dfaggioli@suse.com>
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---
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src/Makefile.housekeeping | 13 +++++++++++++
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1 file changed, 13 insertions(+)
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diff --git a/roms/ipxe/src/Makefile.housekeeping b/roms/ipxe/src/Makefile.housekeeping
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index 36cfb950e014914232f254b7edbb..cad327d31dbe0bd69d956c32d28d 100644
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--- a/roms/ipxe/src/Makefile.housekeeping
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+++ b/roms/ipxe/src/Makefile.housekeeping
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@@ -183,6 +183,19 @@ WNAPM_TEST = $(CC) -Wno-address-of-packed-member -x c -c /dev/null \
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WNAPM_FLAGS := $(shell $(WNAPM_TEST) && \
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$(ECHO) '-Wno-address-of-packed-member')
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WORKAROUND_CFLAGS += $(WNAPM_FLAGS)
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+
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+# gcc 12.1 generates false positive warnings. Inhibit the warnings.
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+WNAB_TEST = $(CC) -Wno-array-bounds -x c -c /dev/null \
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+ -o /dev/null >/dev/null 2>&1
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+WNAB_FLAGS := $(shell $(WNAB_TEST) && \
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+ $(ECHO) '-Wno-array-bounds')
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+WORKAROUND_CFLAGS += $(WNAB_FLAGS)
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+
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+WNDP_TEST = $(CC) -Wno-dangling-pointer-x c -c /dev/null \
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+ -o /dev/null >/dev/null 2>&1
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+WNDP_FLAGS := $(shell $(WNAB_TEST) && \
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+ $(ECHO) '-Wno-dangling-pointer')
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+WORKAROUND_CFLAGS += $(WNDP_FLAGS)
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endif
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# Some versions of gas choke on division operators, treating them as
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