arch,base: Separate the idea of a memory image and object file.

A memory image can be described by an object file, but an object file
is more than a memory image. Also, it makes sense to manipulate a
memory image to, for instance, change how it's loaded into memory. That
takes on larger implications (relocations, the entry point, symbols,
etc.) when talking about the whole object file, and also modifies
aspects which may not need to change. For instance if an image needs
to be loaded into memory at addresses different from what's in the
object file, but other things like symbols need to stay unmodified.

Change-Id: Ia360405ffb2c1c48e0cc201ac0a0764357996a54
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/21466
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>

1 files changed, 1 insertions, 9 deletions

diff --git a/src/arch/mips/process.cc b/src/arch/mips/process.cc
index 4c4b0e414..8e1e22b66 100644
--- a/src/arch/mips/process.cc
+++ b/src/arch/mips/process.cc
@@ -65,7 +65,7 @@ MipsProcess::MipsProcess(ProcessParams *params, ObjectFile *objFile)
     Addr next_thread_stack_base = stack_base - max_stack_size;
 
     // Set up break point (Top of Heap)
-    Addr brk_point = objFile->maxSegmentAddr();
+    Addr brk_point = image.maxAddr();
     brk_point = roundUp(brk_point, PageBytes);
 
     // Set up region for mmaps.  Start it 1GB above the top of the heap.
@@ -89,14 +89,6 @@ MipsProcess::argsInit(int pageSize)
 {
     int intSize = sizeof(IntType);
 
-    // Patch the ld_bias for dynamic executables.
-    updateBias();
-
-    // load object file into target memory
-    objFile->loadSegments(initVirtMem);
-    if (objFile->getInterpreter())
-        objFile->getInterpreter()->loadSegments(initVirtMem);
-
     std::vector<AuxVector<IntType>> auxv;
 
     ElfObject * elfObject = dynamic_cast<ElfObject *>(objFile);