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SubjectRe: [crash, bisected] Re: [PATCH 3/4] x86_64: Fold pda into per cpu area
Jeremy Fitzhardinge wrote:
>
>
> BTW, I think __per_cpu_load will cause trouble if you make a relocatable
> kernel, being an absolute symbol. But I have relocation off at the moment.
>
...
Here's where it's defined (in include/asm-generic/vmlinux.lds.h):

#ifdef CONFIG_HAVE_ZERO_BASED_PER_CPU
#define PERCPU(align) \
. = ALIGN(align); \
percpu : { } :percpu \
__per_cpu_load = .; \
.data.percpu 0 : AT(__per_cpu_load - LOAD_OFFSET) { \
*(.data.percpu.first) \
*(.data.percpu.shared_aligned) \
*(.data.percpu) \
*(.data.percpu.page_aligned) \
____per_cpu_size = .; \
} \
. = __per_cpu_load + ____per_cpu_size; \
data : { } :data
#else

Can we generate a new symbol which would account for LOAD_OFFSET?


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