0.7.4.40:

[sbcl.git] / src / runtime / bsd-os.h

diff --git a/src/runtime/bsd-os.h b/src/runtime/bsd-os.h
index 9862141..63da20b 100644 (file)
--- a/src/runtime/bsd-os.h
+++ b/src/runtime/bsd-os.h
@@ -9,10 +9,6 @@
  * files for more information.
  */
 
-/*
- * $Header$
- */
-
 #ifdef __FreeBSD__
 #include <osreldate.h>
 #endif
@@ -25,6 +21,7 @@ typedef caddr_t os_vm_address_t;
 typedef vm_size_t os_vm_size_t;
 typedef off_t os_vm_offset_t;
 typedef int os_vm_prot_t;
+typedef int os_context_register_t;
 
 #if defined __FreeBSD__
 /* Note: The man page for sigaction(2) in FreeBSD 4.0 says that this
@@ -32,14 +29,20 @@ typedef int os_vm_prot_t;
  * original FreeBSD port of SBCL, that's wrong, it's actually a
  * ucontext_t. */
 typedef ucontext_t os_context_t;
+/* As the sbcl-devel message from Raymond Wiker 2000-12-01, FreeBSD
+ * (unlike Linux and OpenBSD) doesn't let us tweak the CPU's single
+ * step flag bit by messing with the flags stored in a signal context,
+ * so we need to implement single stepping in a more roundabout way. */
+#define CANNOT_GET_TO_SINGLE_STEP_FLAG
 #elif defined __OpenBSD__
 typedef struct sigcontext os_context_t;
 #else
 #error unsupported BSD variant
 #endif
 
+#include "target-arch-os.h"
+#include "target-arch.h"
+
 #define OS_VM_PROT_READ PROT_READ
 #define OS_VM_PROT_WRITE PROT_WRITE
 #define OS_VM_PROT_EXECUTE PROT_EXEC
-
-#define OS_VM_DEFAULT_PAGESIZE 4096