X86: Get rid of initialization of R11

R11 is just junk after the start of exectuion because we're "returning" from
an execve call and linux destroys the contents of rcx and r11 on system calls.

--HG--
extra : convert_revision : 6bf69a50ce56e0355dfdd41524163874340beec0

diff --git a/src/arch/x86/process.cc b/src/arch/x86/process.cc
index 03680561286168c913529c596e47ac6945667e44..17904cb3398b851decfea4c82c66eae267809e12 100644 (file)
--- a/src/arch/x86/process.cc
+++ b/src/arch/x86/process.cc
@@ -412,11 +412,6 @@ X86LiveProcess::argsInit(int intSize, int pageSize)
 
     initVirtMem->writeBlob(argc_base, (uint8_t*)&guestArgc, intSize);
 
-    //Set up the thread context to start running the process
-    //Because of the peculiarities of how syscall works, I believe
-    //a process starts with r11 containing the value of eflags or maybe r11
-    //from before the call to execve. Empirically this value is 0x200.
-    threadContexts[0]->setIntReg(INTREG_R11, 0x200);
     //Set the stack pointer register
     threadContexts[0]->setIntReg(StackPointerReg, stack_min);