[vmkit-commits] [vmkit] r111071 - /vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp

[Nicolas Geoffray]

Author: geoffray
Date: Sat Aug 14 07:15:49 2010
New Revision: 111071

URL: http://llvm.org/viewvc/llvm-project?rev=111071&view=rev
Log:
Don't use (the small) alternate stack for segfault, otherwise we can't have a backtrace.


Modified:
    vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp

Modified: vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp
URL: http://llvm.org/viewvc/llvm-project/vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp?rev=111071&r1=111070&r2=111071&view=diff
==============================================================================
--- vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp (original)
+++ vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp Sat Aug 14 07:15:49 2010
@@ -284,13 +284,6 @@
 void Thread::internalThreadStart(mvm::Thread* th) {
   th->baseSP  = (void*)&th;
 
-  // Set an alternate stack for handling stack overflows from VM code.
-  stack_t sigsegvStack;
-  sigsegvStack.ss_size = getpagesize();
-  sigsegvStack.ss_flags = 0;
-  sigsegvStack.ss_sp = (void*)th;
-  sigaltstack(&sigsegvStack, NULL);
-
   // Set the SIGSEGV handler to diagnose errors.
   struct sigaction sa;
   sigset_t mask;