[compiler-rt] [compiler-rt] [sanitizer_common] Fix SIGSEGV in ForEachMappedRegion for DSOs with custom image base (PR #206299)

[Mike Kruskal via llvm-commits]

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@@ -1404,6 +1404,10 @@ void ForEachMappedRegion(link_map *map, void (*cb)(const void *, uptr)) {
   typedef ElfW(Ehdr) Elf_Ehdr;
 #    endif  // !SANITIZER_FREEBSD
   char *base = (char *)map->l_addr;
+  Dl_info info;
+  if (dladdr((void *)map->l_ld, &info) && info.dli_fbase) {
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mkruskal-google wrote:

Ah yea, added

https://github.com/llvm/llvm-project/pull/206299