diff options
Diffstat (limited to 'src/arch/alpha/faults.cc')
| -rw-r--r-- | src/arch/alpha/faults.cc | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/arch/alpha/faults.cc b/src/arch/alpha/faults.cc index 8493223ff..06765768a 100644 --- a/src/arch/alpha/faults.cc +++ b/src/arch/alpha/faults.cc @@ -35,6 +35,9 @@ #include "base/trace.hh" #if FULL_SYSTEM #include "arch/alpha/ev5.hh" +#else +#include "sim/process.hh" +#include "mem/page_table.hh" #endif namespace AlphaISA @@ -56,6 +59,12 @@ FaultName ArithmeticFault::_name = "arith"; FaultVect ArithmeticFault::_vect = 0x0501; FaultStat ArithmeticFault::_count; +#if !FULL_SYSTEM +FaultName PageTableFault::_name = "page_table_fault"; +FaultVect PageTableFault::_vect = 0x0000; +FaultStat PageTableFault::_count; +#endif + FaultName InterruptFault::_name = "interrupt"; FaultVect InterruptFault::_vect = 0x0101; FaultStat InterruptFault::_count; @@ -173,6 +182,28 @@ void ItbFault::invoke(ThreadContext * tc) AlphaFault::invoke(tc); } +#else //!FULL_SYSTEM + +void PageTableFault::invoke(ThreadContext *tc) +{ + Process *p = tc->getProcessPtr(); + + // address is higher than the stack region or in the current stack region + if (vaddr > p->stack_base || vaddr > p->stack_min) + FaultBase::invoke(tc); + + // We've accessed the next page + if (vaddr > p->stack_min - PageBytes) { + p->stack_min -= PageBytes; + if (p->stack_base - p->stack_min > 8*1024*1024) + fatal("Over max stack size for one thread\n"); + p->pTable->allocate(p->stack_min, PageBytes); + warn("Increasing stack size by one page."); + } else { + FaultBase::invoke(tc); + } +} + #endif } // namespace AlphaISA |