[lldb/Plugins] Add memory writing capabilities to Scripted Process

This patch adds memory writing capabilities to the Scripted Process plugin.

This allows to user to get a target address and a memory buffer on the
python scripted process implementation that the user can make processing
on before performing the actual write.

This will also be used to write trap instruction to a real process
memory to set a breakpoint.

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>

1 files changed, 12 insertions, 3 deletions

diff --git a/lldb/test/API/functionalities/scripted_process/dummy_scripted_process.py b/lldb/test/API/functionalities/scripted_process/dummy_scripted_process.py
index 47038144bb08..3f6ce6c1f9fe 100644
--- a/lldb/test/API/functionalities/scripted_process/dummy_scripted_process.py
+++ b/lldb/test/API/functionalities/scripted_process/dummy_scripted_process.py
@@ -7,20 +7,29 @@ from lldb.plugins.scripted_process import ScriptedProcess
 from lldb.plugins.scripted_process import ScriptedThread
 
 class DummyScriptedProcess(ScriptedProcess):
+    memory = None
+
     def __init__(self, exe_ctx: lldb.SBExecutionContext, args : lldb.SBStructuredData):
         super().__init__(exe_ctx, args)
         self.threads[0] = DummyScriptedThread(self, None)
-
-    def read_memory_at_address(self, addr: int, size: int, error: lldb.SBError) -> lldb.SBData:
+        self.memory = {}
+        addr = 0x500000000
         debugger = self.target.GetDebugger()
         index = debugger.GetIndexOfTarget(self.target)
+        self.memory[addr] = "Hello, target " + str(index)
+
+    def read_memory_at_address(self, addr: int, size: int, error: lldb.SBError) -> lldb.SBData:
         data = lldb.SBData().CreateDataFromCString(
                                     self.target.GetByteOrder(),
                                     self.target.GetCodeByteSize(),
-                                    "Hello, target " + str(index))
+                                    self.memory[addr])
 
         return data
 
+    def write_memory_at_address(self, addr, data, error):
+        self.memory[addr] = data.GetString(error, 0)
+        return len(self.memory[addr]) + 1
+
     def get_loaded_images(self):
         return self.loaded_images