On Tue, 22 Sep 2015 14:22:03 +0100
Kapileshwar Singh <[email protected]> wrote:
> if (!(field->flags & FIELD_IS_ARRAY) &&
> field->size == pevent->long_size) {
> - addr = *(unsigned long *)(data + field->offset);
> +
> + /* Handle heterogeneous recording and processing
> + * architectures
> + *
> + * CASE I:
> + * Traces recorded on 32-bit devices (32-bit
> + * addressing) and processed on 64-bit devices:
> + * In this case, only 32 bits should be read.
> + *
> + * CASE II:
> + * Traces recorded on 64 bit devices and processed
> + * on 32-bit devices:
> + * In this case, 64 bits must be read.
Probably should have added a comment about not caring about endianess
and why, but that can be added later. This patch is good enough for now.
Reviewed-by: Steven Rostedt <[email protected]>
Arnaldo, want to pick this up?
-- Steve
> + */
> + addr = (pevent->long_size == 8) ?
> + *(unsigned long long *)(data + field->offset) :
> + (unsigned long long)*(unsigned int *)(data +
> field->offset);
> +
> /* Check if it matches a print format */
> printk = find_printk(pevent, addr);
> if (printk)
> trace_seq_puts(s, printk->printk);
> else
> - trace_seq_printf(s, "%lx", addr);
> + trace_seq_printf(s, "%llx", addr);
> break;
> }
> str = malloc(len + 1);
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