[project @ 1996-01-08 20:28:12 by partain]

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

diff --git a/ghc/compiler/yaccParser/hschooks.c b/ghc/compiler/yaccParser/hschooks.c
new file mode 100644 (file)
index 0000000..d19f628
--- /dev/null
+++ b/ghc/compiler/yaccParser/hschooks.c
@@ -0,0 +1,65 @@
+/*
+These routines customise the error messages
+for various bits of the RTS.  They are linked
+in instead of the defaults.
+*/
+#include <stdio.h>
+
+#define W_ unsigned long int
+#define I_ long int
+
+void
+ErrorHdrHook (where)
+  FILE *where;
+{
+    fprintf(where, "\n"); /* no "Fail: " */
+}
+
+
+void
+OutOfHeapHook (request_size, heap_size)
+  W_ request_size; /* in bytes */
+  W_ heap_size;    /* in bytes */
+{
+    fprintf(stderr, "GHC's heap exhausted;\nwhile trying to allocate %lu bytes in a %lu-byte heap;\nuse the `-H<size>' option to increase the total heap size.\n",
+       request_size,
+       heap_size);
+}
+
+void
+StackOverflowHook (stack_size)
+  I_ stack_size;    /* in bytes */
+{
+    fprintf(stderr, "GHC stack-space overflow: current size %ld bytes.\nUse the `-K<size>' option to increase it.\n", stack_size);
+}
+
+#if 0
+/* nothing to add here, really */
+void
+MallocFailHook (request_size)
+  I_ request_size;    /* in bytes */
+{
+    fprintf(stderr, "malloc: failed on request for %lu bytes\n", request_size);
+}
+#endif /* 0 */
+
+void
+PatErrorHdrHook (where)
+  FILE *where;
+{
+    fprintf(where, "\n*** Pattern-matching error within GHC!\n\nThis is a compiler bug; please report it to glasgow-haskell-bugs@dcs.glasgow.ac.uk.\n\nFail: ");
+}
+
+void
+PreTraceHook (where)
+  FILE *where;
+{
+    fprintf(where, "\n"); /* not "Trace On" */
+}
+
+void
+PostTraceHook (where)
+  FILE *where;
+{
+    fprintf(where, "\n"); /* not "Trace Off" */
+}