[mac] Teach dump_syms to handle additional zerofill sections

src/common/mac/macho_reader.cc

Index: src/common/mac/macho_reader.cc
diff --git a/src/common/mac/macho_reader.cc b/src/common/mac/macho_reader.cc
index 9fcb58e35c2c1dea05f142702cb0160bf8918869..6d7207ce4bf3d1954e1829cb4a95f48005fddeb4 100644
--- a/src/common/mac/macho_reader.cc
+++ b/src/common/mac/macho_reader.cc
@@ -481,7 +481,9 @@ bool Reader::WalkSegmentSections(const Segment &segment,
       reporter_->SectionsMissing(segment.name);
       return false;
     }
-    if ((section.flags & SECTION_TYPE) == S_ZEROFILL) {
+    const uint32_t section_type = section.flags & SECTION_TYPE;
+    if (section_type == S_ZEROFILL || section_type == S_THREAD_LOCAL_ZEROFILL ||
+            section_type == S_GB_ZEROFILL) {
       // Zero-fill sections have a size, but no contents.
       section.contents.start = section.contents.end = NULL;
     } else if (segment.contents.start == NULL &&