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linux/arch/arm/mm/extable.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/*
* linux/arch/arm/mm/extable.c
*/
arm: migrate exception table users off module.h and onto extable.h These files were only including module.h for exception table related functions. We've now separated that content out into its own file "extable.h" so now move over to that and avoid all the extra header content in module.h that we don't really need to compile these files. Cc: Russell King <linux@armlinux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2016-07-23 18:01:45 +00:00
#include <linux/extable.h>
[ARM] Convert asm/uaccess.h to linux/uaccess.h Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-06 10:35:55 +00:00
#include <linux/uaccess.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
int fixup_exception(struct pt_regs *regs)
{
const struct exception_table_entry *fixup;
fixup = search_exception_tables(instruction_pointer(regs));
ARM: 7876/1: clear Thumb-2 IT state on exception handling The exception handling code fails to clear the IT state, potentially leading to incorrect execution of the fixup if the size of the IT block is more than one. Let fixup_exception do the IT sanitizing if a fixup has been found, and restore CPSR from the stack when returning from a data abort. Cc: Will Deacon <will.deacon@arm.com> Cc: stable@vger.kernel.org Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-11-04 10:42:29 +00:00
if (fixup) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
regs->ARM_pc = fixup->fixup;
ARM: 7876/1: clear Thumb-2 IT state on exception handling The exception handling code fails to clear the IT state, potentially leading to incorrect execution of the fixup if the size of the IT block is more than one. Let fixup_exception do the IT sanitizing if a fixup has been found, and restore CPSR from the stack when returning from a data abort. Cc: Will Deacon <will.deacon@arm.com> Cc: stable@vger.kernel.org Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-11-04 10:42:29 +00:00
#ifdef CONFIG_THUMB2_KERNEL
/* Clear the IT state to avoid nasty surprises in the fixup */
regs->ARM_cpsr &= ~PSR_IT_MASK;
#endif
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
return fixup != NULL;
}
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