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118c40b7b5
Commit a3e8fe814a ("x86/build: Raise the minimum GCC version to 8.1")
raised the minimum compiler version as enforced by Kbuild to gcc-8.1
and clang-15 for x86.
This is actually the same gcc version that has been discussed as the
minimum for all architectures several times in the past, with little
objection. A previous concern was the kernel for SLE15-SP7 needing to
be built with gcc-7. As this ended up still using linux-6.4 and there
is no plan for an SP8, this is no longer a problem.
Change it for all architectures and adjust the documentation accordingly.
A few version checks can be removed in the process. The binutils
version 2.30 is the lowest version used in combination with gcc-8 on
common distros, so use that as the corresponding minimum.
Link: https://lore.kernel.org/lkml/20240925150059.3955569-32-ardb+git@google.com/
Link: https://lore.kernel.org/lkml/871q7yxrgv.wl-tiwai@suse.de/
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
25 lines
800 B
Makefile
25 lines
800 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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ccflags-y := $(call cc-disable-warning,fortify-source)
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quiet_cmd_test_fortify = TEST $@
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cmd_test_fortify = $(CONFIG_SHELL) $(src)/test_fortify.sh \
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$< $@ "$(NM)" $(CC) $(c_flags) -DKBUILD_EXTRA_WARN1
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$(obj)/%.log: $(src)/%.c $(src)/test_fortify.sh FORCE
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$(call if_changed_dep,test_fortify)
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logs = $(patsubst $(src)/%.c, %.log, $(wildcard $(src)/*-*.c))
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targets += $(logs)
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quiet_cmd_gen_fortify_log = CAT $@
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cmd_gen_fortify_log = cat $(or $(real-prereqs),/dev/null) > $@
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$(obj)/test_fortify.log: $(addprefix $(obj)/, $(logs)) FORCE
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$(call if_changed,gen_fortify_log)
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always-y += test_fortify.log
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# Some architectures define __NO_FORTIFY if __SANITIZE_ADDRESS__ is undefined.
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# Pass CFLAGS_KASAN to avoid warnings.
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KASAN_SANITIZE := y
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