[Lldb-commits] [lldb] r121996 - in /lldb/trunk: include/lldb/Target/Process.h source/Target/Process.cpp

[Greg Clayton]

Author: gclayton
Date: Thu Dec 16 14:01:20 2010
New Revision: 121996

URL: http://llvm.org/viewvc/llvm-project?rev=121996&view=rev
Log:
Added the ability to read unsigned integers from the Process:

	uint64_t Process::ReadUnsignedInteger (addr_t addr, size_t int_byte_size, Error &error);

Modified:
    lldb/trunk/include/lldb/Target/Process.h
    lldb/trunk/source/Target/Process.cpp

Modified: lldb/trunk/include/lldb/Target/Process.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Target/Process.h?rev=121996&r1=121995&r2=121996&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Target/Process.h (original)
+++ lldb/trunk/include/lldb/Target/Process.h Thu Dec 16 14:01:20 2010
@@ -1336,6 +1336,10 @@
                 size_t size,
                 Error &error);
 
+    uint64_t
+    ReadUnsignedInteger (lldb::addr_t vm_addr, 
+                         size_t integer_byte_size,
+                         Error &error);
     //------------------------------------------------------------------
     /// Actually do the writing of memory to a process.
     ///

Modified: lldb/trunk/source/Target/Process.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Target/Process.cpp?rev=121996&r1=121995&r2=121996&view=diff
==============================================================================
--- lldb/trunk/source/Target/Process.cpp (original)
+++ lldb/trunk/source/Target/Process.cpp Thu Dec 16 14:01:20 2010
@@ -1072,6 +1072,29 @@
     return bytes_read;
 }
 
+uint64_t
+Process::ReadUnsignedInteger (lldb::addr_t vm_addr, size_t integer_byte_size, Error &error)
+{
+    if (integer_byte_size > sizeof(uint64_t))
+    {
+        error.SetErrorString ("unsupported integer size");
+    }
+    else
+    {
+        uint8_t tmp[sizeof(uint64_t)];
+        DataExtractor data (tmp, integer_byte_size, GetByteOrder(), GetAddressByteSize());
+        if (ReadMemory (vm_addr, tmp, integer_byte_size, error) == integer_byte_size)
+        {
+            uint32_t offset = 0;
+            return data.GetMaxU64 (&offset, integer_byte_size);
+        }
+    }
+    // Any plug-in that doesn't return success a memory read with the number
+    // of bytes that were requested should be setting the error
+    assert (error.Fail());
+    return 0;
+}
+
 size_t
 Process::WriteMemoryPrivate (addr_t addr, const void *buf, size_t size, Error &error)
 {