Reorganisation of the source tree

[ghc-hetmet.git] / compiler / parser / hschooks.c

diff --git a/compiler/parser/hschooks.c b/compiler/parser/hschooks.c
new file mode 100644 (file)
index 0000000..f3e7447
--- /dev/null
+++ b/compiler/parser/hschooks.c
@@ -0,0 +1,55 @@
+/*
+These routines customise the error messages
+for various bits of the RTS.  They are linked
+in instead of the defaults.
+*/
+
+/* For GHC 4.08, we are relying on the fact that RtsFlags has
+ * compatible layout with the current version, because we're
+ * #including the current version of RtsFlags.h below.  4.08 didn't
+ * ship with its own RtsFlags.h, unfortunately.   For later GHC
+ * versions, we #include the correct RtsFlags.h.
+ */
+#if __GLASGOW_HASKELL__ < 502
+#include "../includes/Rts.h"
+#include "../includes/RtsFlags.h"
+#else
+#include "Rts.h"
+#include "RtsFlags.h"
+#endif
+
+#include "HsFFI.h"
+
+#include <string.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+void
+defaultsHook (void)
+{
+    RtsFlags.GcFlags.heapSizeSuggestion = 6*1024*1024 / BLOCK_SIZE;
+    RtsFlags.GcFlags.maxStkSize         = 8*1024*1024 / sizeof(W_);
+#if __GLASGOW_HASKELL__ >= 411
+    /* GHC < 4.11 didn't have these */
+    RtsFlags.GcFlags.giveStats = COLLECT_GC_STATS;
+    RtsFlags.GcFlags.statsFile = stderr;
+#endif
+}
+
+void
+OutOfHeapHook (unsigned long request_size/* always zero these days */,
+              unsigned long heap_size)
+    /* both in bytes */
+{
+    fprintf(stderr, "GHC's heap exhausted: current limit is %lu bytes;\nUse the `-M<size>' option to increase the total heap size.\n",
+       heap_size);
+}
+
+void
+StackOverflowHook (unsigned long stack_size)    /* in bytes */
+{
+    fprintf(stderr, "GHC stack-space overflow: current limit is %ld bytes.\nUse the `-K<size>' option to increase it.\n", stack_size);
+}
+