[compiler-rt] b5a5276 - [compiler-rt] [Darwin] VerifyMemoryMapping should ignore zero-size sections (#175083)

[via llvm-commits]

Author: Andrew Haberlandt
Date: 2026-01-09T08:34:45-08:00
New Revision: b5a5276ca7345baf8b3fd771c08b7ef5d234c0ac

URL: https://github.com/llvm/llvm-project/commit/b5a5276ca7345baf8b3fd771c08b7ef5d234c0ac
DIFF: https://github.com/llvm/llvm-project/commit/b5a5276ca7345baf8b3fd771c08b7ef5d234c0ac.diff

LOG: [compiler-rt] [Darwin] VerifyMemoryMapping should ignore zero-size sections (#175083)

Zero size sections cause VerifyMemoryMapping to falsely report
overlapping mappings.

rdar://167467041

Added: 
    

Modified: 
    compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp
index f40fba6bf7151..979729f15aa16 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp
@@ -67,6 +67,8 @@ static bool VerifyMemoryMapping(MemoryMappingLayout* mapping) {
   InternalMmapVector<LoadedModule::AddressRange> segments;
   for (uptr i = 0; i < modules.size(); ++i) {
     for (auto& range : modules[i].ranges()) {
+      if (range.beg == range.end)
+        continue;
       segments.push_back(range);
     }
   }