+#if __APPLE__
+ #define UCONTEXT_REG_PC(ctx) ((ctx)->uc_mcontext->__ss.__pc)
+ #define UCONTEXT_REG_SP(ctx) ((ctx)->uc_mcontext->__ss.__sp)
+ #define UCONTEXT_REG_R0(ctx) ((ctx)->uc_mcontext->__ss.__r[0])
+#else
+ #define UCONTEXT_REG_PC(ctx) ((ctx)->sig_ctx.arm_pc)
+ #define UCONTEXT_REG_SP(ctx) ((ctx)->sig_ctx.arm_sp)
+ #define UCONTEXT_REG_R0(ctx) ((ctx)->sig_ctx.arm_r0)
+#endif
+
+/*
+ * This structure is an extension of MonoLMF and contains extra information.
+ */
+typedef struct {
+ struct MonoLMF lmf;
+ gboolean debugger_invoke;
+ MonoContext ctx; /* if debugger_invoke is TRUE */
+} MonoLMFExt;
+
+void
+mono_arm_throw_exception (MonoObject *exc, unsigned long eip, unsigned long esp, gulong *int_regs, gdouble *fp_regs);
+
+void
+mono_arm_throw_exception_by_token (guint32 type_token, unsigned long eip, unsigned long esp, gulong *int_regs, gdouble *fp_regs);
+
+gboolean
+mono_arm_thumb_supported (void);
+