if (unlikely(!xol_vaddr))
return 0;
- /* Initialize the slot */
- copy_to_page(area->page, xol_vaddr,
- &uprobe->arch.ixol, sizeof(uprobe->arch.ixol));
- /*
- * We probably need flush_icache_user_range() but it needs vma.
- * This should work on supported architectures too.
- */
- flush_dcache_page(area->page);
+ arch_uprobe_copy_ixol(area->page, xol_vaddr,
+ &uprobe->arch.ixol, sizeof(uprobe->arch.ixol));
return xol_vaddr;
}
}
}
+void __weak arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
+ void *src, unsigned long len)
+{
+ /* Initialize the slot */
+ copy_to_page(page, vaddr, src, len);
+
+ /*
+ * We probably need flush_icache_user_range() but it needs vma.
+ * This should work on most of architectures by default. If
+ * architecture needs to do something different it can define
+ * its own version of the function.
+ */
+ flush_dcache_page(page);
+}
+
/**
* uprobe_get_swbp_addr - compute address of swbp given post-swbp regs
* @regs: Reflects the saved state of the task after it has hit a breakpoint