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<h3>Raymond Toy pushed to branch rtoy-mmap-anon-control-and-binding-stacks at <a href="https://gitlab.common-lisp.net/cmucl/cmucl">cmucl / cmucl</a></h3>
<h4>
Commits:
</h4>
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<strong><a href="https://gitlab.common-lisp.net/cmucl/cmucl/commit/5a413e601bb1acc75e1e912fc090f8072e3d8c9f">5a413e60</a></strong>
<div>
<span>by Raymond Toy</span>
<i>at 2015-10-11T16:00:39Z</i>
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<pre class='commit-message'>Support stacks at fixed addresses as before.

If CONTROL_STACK_START or BINDING_STACK_START are defined, we take
that as a hint that the system wants the stacks mapped at fixed
addresses.  Otherwise, the stacks are mapped wherever there's room.</pre>
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<h4>1 changed file:</h4>
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<a href='#diff-0'>
src/lisp/validate.c
</a>
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<h4>Changes:</h4>
<li id='diff-0'>
<a href='https://gitlab.common-lisp.net/cmucl/cmucl/commit/5a413e601bb1acc75e1e912fc090f8072e3d8c9f#diff-0'>
<strong>
src/lisp/validate.c
</strong>
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<pre class="highlight"><code><span style="color: #000000;background-color: #ffdddd">--- a/src/lisp/validate.c
</span><span style="color: #000000;background-color: #ddffdd">+++ b/src/lisp/validate.c
</span><span style="color: #aaaaaa">@@ -115,16 +115,29 @@ void
</span> validate_stacks()
 {
     /* Control Stack */
<span style="color: #000000;background-color: #ddffdd">+#ifdef CONTROL_STACK_START
+    /* Map the control stack at a fixed location */
+    control_stack = (lispobj *) CONTROL_STACK_START;
+#if (defined(i386) || defined(__x86_64))
+    control_stack_end = (lispobj *) (CONTROL_STACK_START + control_stack_size);
+#endif
+    ensure_space(control_stack, control_stack_size);
+#else
</span>     /* Map the conrol stack wherever we have space */
   control_stack = (lispobj*) os_validate(NULL, control_stack_size);
 
 #if (defined(i386) || defined(__x86_64))
     control_stack_end = (void*)control_stack + control_stack_size;
 #endif
<span style="color: #000000;background-color: #ddffdd">+#endif
</span> 
     /* Binding Stack */
<span style="color: #000000;background-color: #ddffdd">+#ifdef BINDING_STACK_START
+    binding_stack = (lispobj *) BINDING_STACK_START;
+    ensure_space(binding_stack, binding_stack_size);
+#else
</span>     binding_stack = (lispobj*) os_validate(NULL, binding_stack_size);
<span style="color: #000000;background-color: #ffdddd">-
</span><span style="color: #000000;background-color: #ddffdd">+#endif
</span> #ifdef sparc
     make_stack_holes();
 #endif
</code></pre>

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