Use static mutex

sei-eschwartz · Apr 23, 2024 · 28b3a50 · 28b3a50
1 parent ac622a7
commit 28b3a50
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/libpharos/funcs.cpp b/libpharos/funcs.cpp
@@ -1058,6 +1058,8 @@ void FunctionDescriptor::_compute_function_hashes(ExtraFunctionHashData *extra)
   // mwd: this code assumes this.  Is it guaranteed?
   assert(func);
 
+  static std::mutex matcher_mutex;
+
   const CFG& cfg = get_pharos_cfg();
   write_guard<decltype(mutex)> guard{mutex};
   if (hashes_calculated) { return; }
@@ -1208,7 +1210,7 @@ void FunctionDescriptor::_compute_function_hashes(ExtraFunctionHashData *extra)
 
       // First we'll look for RIP-relative offsets, e.g., [rip + offset]
       {
-        write_guard<decltype(mutex)> guard{mutex};
+        write_guard<decltype(matcher_mutex)> guard{matcher_mutex};
       AstMatching m;
       MatchResult rip_offsets = m.performMatching("$EXP=SgAsmMemoryReferenceExpression(SgAsmBinaryAdd($REG=SgAsmDirectRegisterExpression,$OFFSET=SgAsmIntegerValueExpression),$SEGMENTREG)", insn);