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ARM: 5866/1: arm ptrace: use unsigned types for kernel pt_regs

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Make registers unsigned for kernel space. This is important for
example in the perf events where the PC is stored into a u64. We
don't want it sign extended so make the regs unsigned to prevent
casts throughout the kernel.

Signed-off-by: Jamie Iles <jamie.iles@picochip.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Jamie Iles 2010-01-06 10:50:08 +01:00 committed by Russell King
parent 8784895ede
commit 092a4e957a
1 changed files with 6 additions and 0 deletions
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6
arch/arm/include/asm/ptrace.h
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@ -97,9 +97,15 @@
* stack during a system call. Note that sizeof(struct pt_regs)
* has to be a multiple of 8.
*/
#ifndef __KERNEL__
struct pt_regs {
long uregs[18];
};
#else /* __KERNEL__ */
struct pt_regs {
unsigned long uregs[18];
};
#endif /* __KERNEL__ */
#define ARM_cpsr uregs[16]
#define ARM_pc uregs[15]