Comment # 2 on bug 1121391 from Charles Arnold

I also see this error before the one in trace.c,

[  275s] In file included from
/home/abuild/rpmbuild/BUILD/xen-4.11.1-testing/xen/include/xen/string.h:9,
[  275s]                  from
/home/abuild/rpmbuild/BUILD/xen-4.11.1-testing/xen/include/xen/lib.h:8,
[  275s]                  from e820.c:2:
[  275s] e820.c: In function 'clip_to_limit':
[  275s]
/home/abuild/rpmbuild/BUILD/xen-4.11.1-testing/xen/include/asm/string.h:10:26:
error: '__builtin_memmove' offset [-16, -36] is out of the bounds [0, 20484] of
object 'e820' with type 'struct e820map' [-Werror=array-bounds]
[  275s]    10 | #define memmove(d, s, n) __builtin_memmove(d, s, n)
[  275s]       |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
[  275s] e820.c:404:13: note: in expansion of macro 'memmove'
[  275s]   404 |             memmove(&e820.map[i], &e820.map[i+1],
[  275s]       |             ^~~~~~~
[  275s] e820.c:36:16: note: 'e820' declared here
[  275s]    36 | struct e820map e820;
[  275s]       |                ^~~~