Fixing AIE2PS patching issue (#8620)

* fixing patching issue for aie2ps

* adding comments to the code

* adding comments to the code

---------

Co-authored-by: ch vamshi krishna <[email protected]>

src/runtime_src/core/common/api/xrt_module.cpp

@@ -817,7 +817,20 @@ class module_elf : public module_impl
         patcher::buf_type buf_type = patcher::buf_type::ctrltext;
 
         auto symbol_type = static_cast<patcher::symbol_type>(rela->r_addend);
-        arg2patcher.emplace(std::move(generate_key_string(argnm, buf_type)), patcher{ symbol_type, {{ctrlcode_offset, 0}}, buf_type});
+        std::string key_string = generate_key_string(argnm, buf_type);
+
+	// One arg may need to be patched at multiple offsets of control code
+	// arg2patcher map contains a key & value pair of arg & patcher object
+	// patcher object uses m_ctrlcode_patchinfo vector to store multiple offsets
+	// this vector size would be equal to number of places which needs patching
+	// On first occurrence of arg, Create a new patcher object and
+	// Initialize the m_ctrlcode_patchinfo vector of the single patch_info structure
+	// On all further occurences of arg, add patch_info structure to existing vector
+
+        if (auto search = arg2patcher.find(key_string); search != arg2patcher.end())
+          search->second.m_ctrlcode_patchinfo.emplace_back(patcher::patch_info{ctrlcode_offset, 0, 0});
+        else
+          arg2patcher.emplace(std::move(key_string), patcher{ symbol_type, {{ctrlcode_offset, 0}}, buf_type});
       }
     }