mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-17 07:54:54 +08:00
62d0fd591d
As the bug report [1] pointed out, <linux/vermagic.h> must be included after <linux/module.h>. I believe we should not impose any include order restriction. We often sort include directives alphabetically, but it is just coding style convention. Technically, we can include header files in any order by making every header self-contained. Currently, arch-specific MODULE_ARCH_VERMAGIC is defined in <asm/module.h>, which is not included from <linux/vermagic.h>. Hence, the straight-forward fix-up would be as follows: |--- a/include/linux/vermagic.h |+++ b/include/linux/vermagic.h |@@ -1,5 +1,6 @@ | /* SPDX-License-Identifier: GPL-2.0 */ | #include <generated/utsrelease.h> |+#include <linux/module.h> | | /* Simply sanity version stamp for modules. */ | #ifdef CONFIG_SMP This works enough, but for further cleanups, I split MODULE_ARCH_VERMAGIC definitions into <asm/vermagic.h>. With this, <linux/module.h> and <linux/vermagic.h> will be orthogonal, and the location of MODULE_ARCH_VERMAGIC definitions will be consistent. For arc and ia64, MODULE_PROC_FAMILY is only used for defining MODULE_ARCH_VERMAGIC. I squashed it. For hexagon, nds32, and xtensa, I removed <asm/modules.h> entirely because they contained nothing but MODULE_ARCH_VERMAGIC definition. Kbuild will automatically generate <asm/modules.h> at build-time, wrapping <asm-generic/module.h>. [1] https://lore.kernel.org/lkml/20200411155623.GA22175@zn.tnic Reported-by: Borislav Petkov <bp@suse.de> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Jessica Yu <jeyu@kernel.org>
32 lines
800 B
C
32 lines
800 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_VERMAGIC_H
|
|
#define _ASM_VERMAGIC_H
|
|
|
|
#include <linux/stringify.h>
|
|
|
|
/*
|
|
* Add the ARM architecture version to the version magic string
|
|
*/
|
|
#define MODULE_ARCH_VERMAGIC_ARMVSN "ARMv" __stringify(__LINUX_ARM_ARCH__) " "
|
|
|
|
/* Add __virt_to_phys patching state as well */
|
|
#ifdef CONFIG_ARM_PATCH_PHYS_VIRT
|
|
#define MODULE_ARCH_VERMAGIC_P2V "p2v8 "
|
|
#else
|
|
#define MODULE_ARCH_VERMAGIC_P2V ""
|
|
#endif
|
|
|
|
/* Add instruction set architecture tag to distinguish ARM/Thumb kernels */
|
|
#ifdef CONFIG_THUMB2_KERNEL
|
|
#define MODULE_ARCH_VERMAGIC_ARMTHUMB "thumb2 "
|
|
#else
|
|
#define MODULE_ARCH_VERMAGIC_ARMTHUMB ""
|
|
#endif
|
|
|
|
#define MODULE_ARCH_VERMAGIC \
|
|
MODULE_ARCH_VERMAGIC_ARMVSN \
|
|
MODULE_ARCH_VERMAGIC_ARMTHUMB \
|
|
MODULE_ARCH_VERMAGIC_P2V
|
|
|
|
#endif /* _ASM_VERMAGIC_H */
|