849b882b52
It appears that gcc may put some code in ".text.unlikely" or ".text.hot" sections. Right now those aren't accounted for in unwind tables. Add them. I found some docs about this at: http://gcc.gnu.org/onlinedocs/gcc-4.6.2/gcc.pdf Without this, if you have slub_debug turned on, you can get messages that look like this: unwind: Index not found 7f008c50 Signed-off-by: Doug Anderson <dianders@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
49 lines
1 KiB
C
49 lines
1 KiB
C
#ifndef _ASM_ARM_MODULE_H
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#define _ASM_ARM_MODULE_H
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#include <asm-generic/module.h>
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struct unwind_table;
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#ifdef CONFIG_ARM_UNWIND
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enum {
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ARM_SEC_INIT,
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ARM_SEC_DEVINIT,
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ARM_SEC_CORE,
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ARM_SEC_EXIT,
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ARM_SEC_DEVEXIT,
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ARM_SEC_HOT,
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ARM_SEC_UNLIKELY,
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ARM_SEC_MAX,
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};
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struct mod_arch_specific {
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struct unwind_table *unwind[ARM_SEC_MAX];
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};
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#endif
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/*
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* Add the ARM architecture version to the version magic string
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*/
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#define MODULE_ARCH_VERMAGIC_ARMVSN "ARMv" __stringify(__LINUX_ARM_ARCH__) " "
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/* Add __virt_to_phys patching state as well */
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#ifdef CONFIG_ARM_PATCH_PHYS_VIRT
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#define MODULE_ARCH_VERMAGIC_P2V "p2v8 "
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#else
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#define MODULE_ARCH_VERMAGIC_P2V ""
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#endif
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/* Add instruction set architecture tag to distinguish ARM/Thumb kernels */
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#ifdef CONFIG_THUMB2_KERNEL
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#define MODULE_ARCH_VERMAGIC_ARMTHUMB "thumb2 "
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#else
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#define MODULE_ARCH_VERMAGIC_ARMTHUMB ""
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#endif
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#define MODULE_ARCH_VERMAGIC \
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MODULE_ARCH_VERMAGIC_ARMVSN \
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MODULE_ARCH_VERMAGIC_ARMTHUMB \
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MODULE_ARCH_VERMAGIC_P2V
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#endif /* _ASM_ARM_MODULE_H */
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