add translations for new sections that are mmapped or when the brk

is changed
Add a default machine width parameter
Arch based live processes

arch/alpha/linux/process.cc:
arch/alpha/linux/process.hh:
arch/alpha/process.cc:
arch/alpha/process.hh:
arch/alpha/tru64/process.cc:
arch/alpha/tru64/process.hh:
arch/mips/linux_process.cc:
arch/mips/process.cc:
arch/mips/process.hh:
arch/sparc/linux/process.cc:
arch/sparc/linux/process.hh:
arch/sparc/process.cc:
arch/sparc/process.hh:
configs/test/test.py:
python/m5/objects/Process.py:
sim/process.cc:
sim/process.hh:
    Architecture based live processes
arch/mips/isa_traits.hh:
arch/sparc/isa_traits.hh:
    Add a default machine width parameter
mem/port.hh:
    gcc 4 really wants  a virtual destructor
sim/byteswap.hh:
    remove the comment around long and unsigned long even though uint32_t
    and int32_t are defined. Seems to work with gcc 4 and 3.4.3.
sim/syscall_emul.cc:
sim/syscall_emul.hh:
    add translations for new sections that are mmapped or when the brk
    is changed

--HG--
extra : convert_revision : e2f9f228113c7127c87ef2358209a399c30ed5c6

1 files changed, 12 insertions, 3 deletions

diff --git a/sim/syscall_emul.cc b/sim/syscall_emul.cc
index 3dedb7c5e..d13591c06 100644
--- a/sim/syscall_emul.cc
+++ b/sim/syscall_emul.cc
@@ -33,9 +33,11 @@
 #include <iostream>
 
 #include "sim/syscall_emul.hh"
+#include "base/chunk_generator.hh"
 #include "base/trace.hh"
 #include "cpu/exec_context.hh"
 #include "cpu/base.hh"
+#include "mem/page_table.hh"
 #include "sim/process.hh"
 
 #include "sim/sim_events.hh"
@@ -98,11 +100,18 @@ getpagesizeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
 SyscallReturn
 obreakFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
 {
+    Addr junk;
+
     // change brk addr to first arg
     Addr new_brk = xc->getSyscallArg(0);
-    if (new_brk != 0)
-    {
-        p->brk_point = xc->getSyscallArg(0);
+    if (new_brk != 0) {
+        for (ChunkGenerator gen(p->brk_point, new_brk - p->brk_point,
+                                VMPageSize); !gen.done(); gen.next()) {
+            if (!p->pTable->translate(gen.addr(), junk))
+                p->pTable->allocate(roundDown(gen.addr(), VMPageSize),
+                                    VMPageSize);
+        }
+        p->brk_point = new_brk;
     }
     DPRINTF(SyscallVerbose, "Break Point changed to: %#X\n", p->brk_point);
     return p->brk_point;