Disassembler::DisassembleRange() currently calls Target::ReadMemory

with prefer_file_cache == false.  This is what we want to do when
the user is doing a disassemble command -- show the actual memory
contents in case the memory has been corrupted or something -- but
when we're profiling functions for stepping or unwinding
(ThreadPlanStepRange::GetInstructionsForAddress,
UnwindAssemblyInstEmulation::GetNonCallSiteUnwindP) we can read
__TEXT instructions directly out of the file, if it exists.
<rdar://problem/14397491> 

llvm-svn: 190638

1 files changed, 3 insertions, 1 deletions

diff --git a/lldb/source/API/SBSymbol.cpp b/lldb/source/API/SBSymbol.cpp
index dd057e81a55..ef3d0764c96 100644
--- a/lldb/source/API/SBSymbol.cpp
+++ b/lldb/source/API/SBSymbol.cpp
@@ -139,11 +139,13 @@ SBSymbol::GetInstructions (SBTarget target, const char *flavor_string)
             if (module_sp)
             {
                 AddressRange symbol_range (m_opaque_ptr->GetAddress(), m_opaque_ptr->GetByteSize());
+                const bool prefer_file_cache = false;
                 sb_instructions.SetDisassembler (Disassembler::DisassembleRange (module_sp->GetArchitecture (),
                                                                                  NULL,
                                                                                  flavor_string,
                                                                                  exe_ctx,
-                                                                                 symbol_range));
+                                                                                 symbol_range,
+                                                                                 prefer_file_cache));
             }
         }
     }