added the no-asan macro for Throw statements.

Signed-off-by: Pratik Mankawde <3397372+pratikmankawde@users.noreply.github.com>

cspell.config.yaml

@@ -110,6 +110,7 @@ words:
   - gpgcheck
   - gpgkey
   - hotwallet
+  - hwaddress
   - hwrap
   - ifndef
   - inequation

include/xrpl/basics/contract.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <xrpl/basics/sanitizers.h>
 #include <xrpl/beast/type_name.h>
 
 #include <exception>
@@ -24,7 +25,7 @@ LogThrow(std::string const& title);
     control to the next matching exception handler, if any.
     Otherwise, std::terminate will be called.
 */
-[[noreturn]] inline void
+[[noreturn]] XRPL_NO_SANITIZE_ADDRESS inline void
 Rethrow()
 {
     LogThrow("Re-throwing exception");
@@ -32,7 +33,7 @@ Rethrow()
 }
 
 template <class E, class... Args>
-[[noreturn]] inline void
+[[noreturn]] XRPL_NO_SANITIZE_ADDRESS inline void
 Throw(Args&&... args)
 {
     static_assert(std::is_convertible<E*, std::exception*>::value, "Exception must derive from std::exception.");

include/xrpl/basics/sanitizers.h

@@ -0,0 +1,6 @@
+// Helper to disable ASan/HwASan for specific functions
+#if defined(__GNUC__) || defined(__clang__)
+#define XRPL_NO_SANITIZE_ADDRESS __attribute__((no_sanitize("address", "hwaddress")))
+#else
+#define XRPL_NO_SANITIZE_ADDRESS
+#endif

src/libxrpl/basics/Number.cpp

@@ -254,7 +254,7 @@ Number::Guard::doRoundUp(
     }
     bringIntoRange(negative, mantissa, exponent, minMantissa);
     if (exponent > maxExponent)
-        throw std::overflow_error(location);
+        Throw<std::overflow_error>(std::string(location));
 }
 
 template <UnsignedMantissa T>
@@ -290,7 +290,7 @@ Number::Guard::doRound(rep& drops, std::string location)
             // or "(maxRep + 1) / 10", neither of which will round up when
             // converting to rep, though the latter might overflow _before_
             // rounding.
-            throw std::overflow_error(location);  // LCOV_EXCL_LINE
+            Throw<std::overflow_error>(std::string(location));  // LCOV_EXCL_LINE
         }
         ++drops;
     }