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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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056000c471
While the randstruct GCC plugin was being rebuilt if the randstruct seed changed, Clang builds did not notice the change. This could result in differing struct layouts in a target depending on when it was built. Include the existing generated header file in compiler-version.h when its associated feature name, RANDSTRUCT, is defined. This will be picked up by fixdep and force rebuilds where needed. Link: https://lore.kernel.org/r/20250503184623.2572355-2-kees@kernel.org Reviewed-by: Nicolas Schier <n.schier@avm.de> Tested-by: Nicolas Schier <n.schier@avm.de> Signed-off-by: Kees Cook <kees@kernel.org>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_VERMAGIC_H
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#define _LINUX_VERMAGIC_H
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#ifndef INCLUDE_VERMAGIC
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#error "This header can be included from kernel/module.c or *.mod.c only"
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#endif
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#include <generated/utsrelease.h>
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#include <asm/vermagic.h>
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/* Simply sanity version stamp for modules. */
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#ifdef CONFIG_SMP
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#define MODULE_VERMAGIC_SMP "SMP "
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#else
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#define MODULE_VERMAGIC_SMP ""
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#endif
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#ifdef CONFIG_PREEMPT_RT
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#define MODULE_VERMAGIC_PREEMPT "preempt_rt "
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#elif defined(CONFIG_PREEMPT_BUILD)
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#define MODULE_VERMAGIC_PREEMPT "preempt "
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#else
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#define MODULE_VERMAGIC_PREEMPT ""
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#endif
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#ifdef CONFIG_MODULE_UNLOAD
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#define MODULE_VERMAGIC_MODULE_UNLOAD "mod_unload "
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#else
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#define MODULE_VERMAGIC_MODULE_UNLOAD ""
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#endif
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#ifdef CONFIG_MODVERSIONS
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#define MODULE_VERMAGIC_MODVERSIONS "modversions "
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#else
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#define MODULE_VERMAGIC_MODVERSIONS ""
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#endif
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#ifdef RANDSTRUCT
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#define MODULE_RANDSTRUCT "RANDSTRUCT_" RANDSTRUCT_HASHED_SEED
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#else
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#define MODULE_RANDSTRUCT
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#endif
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#define VERMAGIC_STRING \
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UTS_RELEASE " " \
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MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \
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MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \
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MODULE_ARCH_VERMAGIC \
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MODULE_RANDSTRUCT
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#endif /* _LINUX_VERMAGIC_H */
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