Merge branch 'master' into export-slabh
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@@ -394,6 +394,14 @@ void __kprobes jprobe_return(void)
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/*
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* Setup an empty pt_regs. Fill SP and PC fields as
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* they're needed by longjmp_break_handler.
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*
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* We allocate some slack between the original SP and start of
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* our fabricated regs. To be precise we want to have worst case
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* covered which is STMFD with all 16 regs so we allocate 2 *
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* sizeof(struct_pt_regs)).
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*
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* This is to prevent any simulated instruction from writing
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* over the regs when they are accessing the stack.
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*/
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"sub sp, %0, %1 \n\t"
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"ldr r0, ="__stringify(JPROBE_MAGIC_ADDR)"\n\t"
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@@ -411,7 +419,7 @@ void __kprobes jprobe_return(void)
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"ldmia sp, {r0 - pc} \n\t"
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:
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: "r" (kcb->jprobe_saved_regs.ARM_sp),
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"I" (sizeof(struct pt_regs)),
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"I" (sizeof(struct pt_regs) * 2),
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"J" (offsetof(struct pt_regs, ARM_sp)),
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"J" (offsetof(struct pt_regs, ARM_pc)),
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"J" (offsetof(struct pt_regs, ARM_cpsr))
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