2008-08-22 Daniel Kraft <d@domob.eu>

[pf3gnuchains/gcc-fork.git] / gcc / unwind-generic.h

diff --git a/gcc/unwind-generic.h b/gcc/unwind-generic.h
index 4d5d14d..5e0f608 100644 (file)
--- a/gcc/unwind-generic.h
+++ b/gcc/unwind-generic.h
@@ -43,8 +43,8 @@ extern "C" {
 
 /* @@@ The IA-64 ABI uses uint64 throughout.  Most places this is
    inefficient for 32-bit and smaller machines.  */
-typedef unsigned _Unwind_Word __attribute__((__mode__(__word__)));
-typedef signed _Unwind_Sword __attribute__((__mode__(__word__)));
+typedef unsigned _Unwind_Word __attribute__((__mode__(__unwind_word__)));
+typedef signed _Unwind_Sword __attribute__((__mode__(__unwind_word__)));
 #if defined(__ia64__) && defined(__hpux__)
 typedef unsigned _Unwind_Ptr __attribute__((__mode__(__word__)));
 #else
@@ -108,6 +108,12 @@ typedef int _Unwind_Action;
 #define _UA_FORCE_UNWIND       8
 #define _UA_END_OF_STACK       16
 
+/* The target can override this macro to define any back-end-specific
+   attributes required for the lowest-level stack frame.  */
+#ifndef LIBGCC2_UNWIND_ATTRIBUTE
+#define LIBGCC2_UNWIND_ATTRIBUTE
+#endif
+
 /* This is an opaque type used to refer to a system-specific data
    structure used by the system unwinder. This context is created and
    destroyed by the system, and passed to the personality routine
@@ -115,7 +121,8 @@ typedef int _Unwind_Action;
 struct _Unwind_Context;
 
 /* Raise an exception, passing along the given exception object.  */
-extern _Unwind_Reason_Code _Unwind_RaiseException (struct _Unwind_Exception *);
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_RaiseException (struct _Unwind_Exception *);
 
 /* Raise an exception for forced unwinding.  */
 
@@ -123,20 +130,21 @@ typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn)
      (int, _Unwind_Action, _Unwind_Exception_Class,
       struct _Unwind_Exception *, struct _Unwind_Context *, void *);
 
-extern _Unwind_Reason_Code _Unwind_ForcedUnwind (struct _Unwind_Exception *,
-                                                _Unwind_Stop_Fn,
-                                                void *);
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_ForcedUnwind (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
 
 /* Helper to invoke the exception_cleanup routine.  */
 extern void _Unwind_DeleteException (struct _Unwind_Exception *);
 
 /* Resume propagation of an existing exception.  This is used after
    e.g. executing cleanup code, and not to implement rethrowing.  */
-extern void _Unwind_Resume (struct _Unwind_Exception *);
+extern void LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_Resume (struct _Unwind_Exception *);
 
-/* @@@ Resume propagation of an FORCE_UNWIND exception, or to rethrow
+/* @@@ Resume propagation of a FORCE_UNWIND exception, or to rethrow
    a normal exception that was handled.  */
-extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow (struct _Unwind_Exception *);
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_Resume_or_Rethrow (struct _Unwind_Exception *);
 
 /* @@@ Use unwind data to perform a stack backtrace.  The trace callback
    is called for every stack frame in the call chain, but no cleanup
@@ -144,12 +152,13 @@ extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow (struct _Unwind_Exception *
 typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)
      (struct _Unwind_Context *, void *);
 
-extern _Unwind_Reason_Code _Unwind_Backtrace (_Unwind_Trace_Fn, void *);
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_Backtrace (_Unwind_Trace_Fn, void *);
 
 /* These functions are used for communicating information about the unwind
    context (i.e. the unwind descriptors and the user register state) between
    the unwind library and the personality routine and landing pad.  Only
-   selected registers maybe manipulated.  */
+   selected registers may be manipulated.  */
 
 extern _Unwind_Word _Unwind_GetGR (struct _Unwind_Context *, int);
 extern void _Unwind_SetGR (struct _Unwind_Context *, int, _Unwind_Word);
@@ -191,12 +200,14 @@ struct SjLj_Function_Context;
 extern void _Unwind_SjLj_Register (struct SjLj_Function_Context *);
 extern void _Unwind_SjLj_Unregister (struct SjLj_Function_Context *);
 
-extern _Unwind_Reason_Code _Unwind_SjLj_RaiseException
-     (struct _Unwind_Exception *);
-extern _Unwind_Reason_Code _Unwind_SjLj_ForcedUnwind
-     (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
-extern void _Unwind_SjLj_Resume (struct _Unwind_Exception *);
-extern _Unwind_Reason_Code _Unwind_SjLj_Resume_or_Rethrow (struct _Unwind_Exception *);
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_SjLj_RaiseException (struct _Unwind_Exception *);
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_SjLj_ForcedUnwind (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
+extern void LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_SjLj_Resume (struct _Unwind_Exception *);
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_SjLj_Resume_or_Rethrow (struct _Unwind_Exception *);
 
 /* @@@ The following provide access to the base addresses for text
    and data-relative addressing in the LDSA.  In order to stay link