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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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be2b34fa9b
To enable Clang randstruct support, move the structure layout randomization seed generation out of scripts/gcc-plugins/ into scripts/basic/ so it happens early enough that it can be used by either compiler implementation. The gcc-plugin still builds its own header file, but now does so from the common "randstruct.seed" file. Cc: linux-hardening@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220503205503.3054173-6-keescook@chromium.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_BUILD
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#define MODULE_VERMAGIC_PREEMPT "preempt "
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#elif defined(CONFIG_PREEMPT_RT)
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#define MODULE_VERMAGIC_PREEMPT "preempt_rt "
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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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#include <generated/randstruct_hash.h>
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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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