Change max_stack_buffer_size from 128 to 512

contracts/eosio.bios/eosio.bios.hpp

@@ -27,7 +27,7 @@ namespace eosio {
             (void)schedule; // schedule argument just forces the deserialization of the action data into vector<producer_key> (necessary check)
             require_auth( _self );
 
-            constexpr size_t max_stack_buffer_size = 128;
+            constexpr size_t max_stack_buffer_size = 512;
             size_t size = action_data_size();
             char* buffer = (char*)( max_stack_buffer_size < size ? malloc(size) : alloca(size) );
             read_action_data( buffer, size );

contracts/eosio.msig/eosio.msig.cpp

@@ -17,7 +17,7 @@ void multisig::propose( account_name proposer,
 */
 
 void multisig::propose() {
-   constexpr size_t max_stack_buffer_size = 128;
+   constexpr size_t max_stack_buffer_size = 512;
    size_t size = action_data_size();
    char* buffer = (char*)( max_stack_buffer_size < size ? malloc(size) : alloca(size) );
    read_action_data( buffer, size );

contracts/eosiolib/action.hpp

@@ -44,7 +44,7 @@ namespace eosio {
     */
    template<typename T>
    T unpack_action_data() {
-      constexpr size_t max_stack_buffer_size = 128;
+      constexpr size_t max_stack_buffer_size = 512;
       size_t size = action_data_size();
       char* buffer = (char*)( max_stack_buffer_size < size ? malloc(size) : alloca(size) );
       read_action_data( buffer, size );

contracts/eosiolib/dispatcher.hpp

@@ -42,7 +42,7 @@ namespace eosio {
       size_t size = action_data_size();
 
       //using malloc/free here potentially is not exception-safe, although WASM doesn't support exceptions
-      constexpr size_t max_stack_buffer_size = 128;
+      constexpr size_t max_stack_buffer_size = 512;
       void* buffer = nullptr;
       if( size > 0 ) {
          buffer = max_stack_buffer_size < size ? malloc(size) : alloca(size);

contracts/eosiolib/multi_index.hpp

@@ -136,7 +136,7 @@ class multi_index
          return (n & 0x000000000000000FULL) == 0;
       }
 
-      constexpr static size_t max_stack_buffer_size = 128;
+      constexpr static size_t max_stack_buffer_size = 512;
 
       static_assert( validate_table_name(TableName), "multi_index does not support table names with a length greater than 12");
 

contracts/eosiolib/transaction.hpp

@@ -76,7 +76,7 @@ namespace eosio {
     * @return the indicated action
     */
    inline action get_action( uint32_t type, uint32_t index ) {
-      constexpr size_t max_stack_buffer_size = 128;
+      constexpr size_t max_stack_buffer_size = 512;
       int s = ::get_action( type, index, nullptr, 0 );
       eosio_assert( s > 0, "get_action size failed" );
       size_t size = static_cast<size_t>(s);