Re: [Xen-devel] [PATCH v4 07/34] arm/x86: Use struct virtual_region to do bug, symbol, and (x86) exception tables

[Julien Grall]

Hi Jan,

On 23/03/16 08:19, Jan Beulich wrote:
On 22.03.16 at 21:18, <konrad.w...@oracle.com> wrote:
+    symbols_lookup_t *symbols_lookup;
+
+    struct {
+        const struct bug_frame *bugs; /* The pointer to array of bug
frames. */
+        ssize_t n_bugs;         /* The number of them. */
+    } frame[BUGFRAME_NR];
+
+#ifdef CONFIG_X86
+    struct exception_table_entry *ex;
+    struct exception_table_entry *ex_end;
+#endif

Would there be any harm omitting the #ifdef and leaving the
pointers be NULL on ARM?

The structure exception_table_entry is only defined for x86 
(asm-x86/uaccess.h).

Regards,

--
Julien Grall

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