ARM: Implement WFE/WFI/SEV semantics.

[gem5.git] / src / sim / syscall_emul.cc

diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index e0469744e51e48f7a9568e36c84ceb2ffff772c4..6873d4aa4cc80b2426987b128c1b055dd88b51c8 100644 (file)
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -37,16 +37,17 @@
 #include <string>
 
 #include "arch/utility.hh"
-#include "sim/syscall_emul.hh"
 #include "base/chunk_generator.hh"
 #include "base/trace.hh"
 #include "config/the_isa.hh"
-#include "cpu/thread_context.hh"
 #include "cpu/base.hh"
+#include "cpu/thread_context.hh"
+#include "debug/SyscallVerbose.hh"
 #include "mem/page_table.hh"
 #include "sim/process.hh"
-#include "sim/system.hh"
 #include "sim/sim_exit.hh"
+#include "sim/syscall_emul.hh"
+#include "sim/system.hh"
 
 using namespace std;
 using namespace TheISA;
@@ -97,6 +98,18 @@ ignoreFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
 }
 
 
+SyscallReturn
+ignoreWarnOnceFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
+           ThreadContext *tc)
+{
+    int index = 0;
+    warn_once("ignoring syscall %s(%d, %d, ...)", desc->name,
+         process->getSyscallArg(tc, index), process->getSyscallArg(tc, index));
+
+    return 0;
+}
+
+
 SyscallReturn
 exitFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
          ThreadContext *tc)
@@ -802,6 +815,8 @@ cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
 
             for (int y = 8; y < 32; y++)
                 ctc->setIntReg(y, tc->readIntReg(y));
+        #elif THE_ISA == ARM_ISA
+            TheISA::copyRegs(tc, ctc);
         #else
             fatal("sys_clone is not implemented for this ISA\n");
         #endif