Revert "[sanitizer] Do not mmap FlagParser::flags_"

Reverting since this caused Linux/odd_stack_size.cpp to fail on a bunch of builders. This reverts commit 34e2f4f.
llvm · Aug 29, 2023 · 21d7287 · 21d7287
1 parent ca0aa53
commit 21d7287
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_flag_parser.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_flag_parser.cpp
@@ -182,6 +182,9 @@ void FlagParser::RegisterHandler(const char *name, FlagHandlerBase *handler,
   ++n_flags_;
 }
 
-FlagParser::FlagParser() : n_flags_(0), buf_(nullptr), pos_(0) {}
+FlagParser::FlagParser() : n_flags_(0), buf_(nullptr), pos_(0) {
+  flags_ =
+      (Flag *)GetGlobalLowLevelAllocator().Allocate(sizeof(Flag) * kMaxFlags);
+}
 
 }  // namespace __sanitizer
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_flag_parser.h b/compiler-rt/lib/sanitizer_common/sanitizer_flag_parser.h
@@ -163,7 +163,7 @@ class FlagParser {
     const char *name;
     const char *desc;
     FlagHandlerBase *handler;
-  } flags_[kMaxFlags];
+  } *flags_;
   int n_flags_;
 
   const char *buf_;