test bug 12592

example/callcc/Jamfile.v2

@@ -70,6 +70,10 @@ exe endless_loop
     : endless_loop.cpp
     ;
 
+exe stack_alignment
+    : stack_alignment.cpp
+    ;
+
 #exe backtrace
 #    : backtrace.cpp
 #    ;

example/callcc/stack_alignment.cpp

@@ -0,0 +1,36 @@
+#include <cstdlib>
+#include <cstring>
+#include <array>
+#include <iostream>
+#include <boost/context/continuation.hpp>
+
+void stack_overflow(int n)
+{
+  // Silence warnings about infinite recursion
+  if (n == 0xdeadbeef) return;
+  // Allocate more than 4k bytes on the stack.
+  std::array<char, 8192> blob;
+  // Repeat...
+  stack_overflow(n + 1);
+
+  // Prevent blob from being optimized away
+  std::memcpy(blob.data(), blob.data(), n);
+  std::cout << blob.data();
+}
+
+int main(int argc, char* argv[])
+{
+  using namespace boost::context;
+
+  // Calling stack_overflow outside of Boost context results in a regular stack
+  // overflow exception.
+  // stack_overflow(0);
+
+  callcc([](continuation && sink) {
+    // Calling stack_overflow inside results in a memory access violation caused
+    // by the compiler generated _chkstk function.
+    stack_overflow(0);
+    return std::move( sink);
+  });
+  return EXIT_SUCCESS;
+}