* heap.cc (heap_init): Allocate heap from top down as a hedge against

subsequent ERROR_INVALID_ADDRESS in forked processes when CTRL-C is pressed.

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 8520bc9..781b134 100644 (file)
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,9 @@
+2005-09-11  Christopher Faylor  <cgf@timesys.com>
+
+       * heap.cc (heap_init): Allocate heap from top down as a hedge against
+       subsequent ERROR_INVALID_ADDRESS in forked processes when CTRL-C is
+       pressed.
+
 2005-09-09  Christopher Faylor  <cgf@timesys.com>
 
        * heap.cc (heap_init): Be slightly more aggressive when trying to

diff --git a/winsup/cygwin/heap.cc b/winsup/cygwin/heap.cc
index 739b597..7dd7497 100644 (file)
--- a/winsup/cygwin/heap.cc
+++ b/winsup/cygwin/heap.cc
@@ -47,7 +47,7 @@ heap_init ()
           * to assure contiguous memory.  */
          cygheap->user_heap.ptr = cygheap->user_heap.top =
          cygheap->user_heap.base =
-           VirtualAlloc (NULL, cygheap->user_heap.chunk, MEM_RESERVE, PAGE_NOACCESS);
+           VirtualAlloc (NULL, cygheap->user_heap.chunk, MEM_RESERVE | MEM_TOP_DOWN, PAGE_NOACCESS);
          if (cygheap->user_heap.base)
            break;
          cygheap->user_heap.chunk -= 1 * 1024 * 1024;