[project @ 2002-11-11 15:49:58 by simonmar]

[ghc-hetmet.git] / ghc / docs / users_guide / runtime_control.sgml

diff --git a/ghc/docs/users_guide/runtime_control.sgml b/ghc/docs/users_guide/runtime_control.sgml
index f8e43d9..8e2e13e 100644 (file)
--- a/ghc/docs/users_guide/runtime_control.sgml
+++ b/ghc/docs/users_guide/runtime_control.sgml
@@ -430,6 +430,23 @@
          -auto-all</literal> and running with <literal>+RTS -xc
          -RTS</literal> will tell you exactly the call stack at the
          point the error was raised.</para>
+
+         <para>The output contains one line for each exception raised
+         in the program (the program might raise and catch several
+         exceptions during its execution), where each line is of the
+         form:</para>
+
+<screen>
+&lt; cc<subscript>1</subscript>, ..., cc<subscript>n</subscript> &gt;
+</screen>
+         <para>each <literal>cc</literal><subscript>i</subscript> is
+         a cost centre in the program (see <xref
+         linkend="cost-centres">), and the sequence represents the
+         &ldquo;call stack&rdquo; at the point the exception was
+         raised.  The leftmost item is the innermost function in the
+         call stack, and the rightmost item is the outermost
+         function.</para>
+
        </listitem>
       </varlistentry>