why the gwp-asan stack frame only address pointer

How can I get the code backtrace?
This is some test result.
```
[ DEATH ] tcmalloc/guarded_page_allocator.cc:488] *** GWP-ASan (https://google.github.io/tcmalloc/gwp-asan.html) ha
s detected a memory error ***
[ DEATH ] tcmalloc/guarded_page_allocator.cc:492] >>> Access at offset 0 into buffer of length 3
[ DEATH ] tcmalloc/guarded_page_allocator.cc:494] Error originates from memory allocated in thread 27 at:
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x55b7c96f7c3f
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x55b7c96e4008
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x55b7c97a507e
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x55b7c96cb9d6
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea933ea4
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea92e059
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea90ef20
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea90f9ae
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea91035f
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea92019d
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea934e82
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea92f2bb
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea91e835
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea986af8
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbdea986a7a
[ DEATH ] tcmalloc/guarded_page_allocator.cc:460] @ 0x7fbde9f73083

```