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| author | Dave Martin <dave.martin@linaro.org> | 2011-02-25 17:54:52 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-02-26 13:36:06 +0000 |
| commit | 80f0aad77f3e1e9d9e518b09ac46963d628ae2be (patch) | |
| tree | df195fff207483f4b10520ebcd3a500c1f703364 /arch | |
| parent | 3572bea8cbc57f0bef1e0f4580c01717df7026d8 (diff) | |
| download | linux-stable-80f0aad77f3e1e9d9e518b09ac46963d628ae2be.tar.gz linux-stable-80f0aad77f3e1e9d9e518b09ac46963d628ae2be.tar.bz2 linux-stable-80f0aad77f3e1e9d9e518b09ac46963d628ae2be.zip | |
ARM: 6766/1: Thumb-2: Reflect ARM/Thumb-2 configuration in module vermagic
Loading Thumb-2 modules into an ARM kernel or vice-versa isn't
guaranteed to work safely, since the kernel is not interworking-
aware everywhere.
This patch adds "thumb2" to the module vermagic when
CONFIG_THUMB2_KERNEL is enabled, to help avoid accidental loading
of modules into the wrong kernel.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/module.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h index a2b775b81cfa..543b44916d2c 100644 --- a/arch/arm/include/asm/module.h +++ b/arch/arm/include/asm/module.h @@ -40,8 +40,16 @@ struct mod_arch_specific { #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_ARM_MODULE_H */ |