From d293463f416a242c4a6e6c28d593fd3955112be5 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sun, 10 Mar 2019 09:39:55 -0400
Subject: midipix: nt64: added sys/unwind.h, unwind (framework wrapper)
 interfaces.

---
 include/sys/unwind.h | 125 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 include/sys/unwind.h

(limited to 'include')

diff --git a/include/sys/unwind.h b/include/sys/unwind.h
new file mode 100644
index 0000000..9267db6
--- /dev/null
+++ b/include/sys/unwind.h
@@ -0,0 +1,125 @@
+#ifndef _SYS_UNWIND_H
+#define _SYS_UNWIND_H
+
+#include <stdint.h>
+#include <signal.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum __unwind_reason_code {
+	__URC_NO_REASON,
+	__URC_FOREIGN_EXCEPTION,
+	__URC_FATAL_PHASE2,
+	__URC_FATAL_PHASE1,
+	__URC_NORMAL_STOP,
+	__URC_END_OF_STACK,
+	__URC_HANDLER_FOUND,
+	__URC_INSTALL_CONTEXT,
+	__URC_CONTINUE_UNWIND,
+};
+
+
+#define __UA_SEARCH_PHASE       0x01
+#define __UA_CLEANUP_PHASE      0x02
+#define __UA_HANDLER_FRAME      0x04
+#define __UA_FORCE_UNWIND       0x08
+#define __UA_END_OF_STACK       0x10
+
+
+
+
+struct _nt_exception_record;
+struct _nt_dispatcher_context;
+
+struct __unwind_exception;
+struct __unwind_context;
+
+
+
+
+typedef enum __unwind_reason_code(*__unwind_personality_routine)(
+	int, int, uintptr_t,
+	struct __unwind_exception *,
+	struct __unwind_context *);
+
+typedef void (*__unwind_exception_cleanup_routine)(
+	enum __unwind_reason_code,
+	struct __unwind_exception *);
+
+
+
+struct __unwind_exception {
+	uintptr_t                               exception_class;
+	__unwind_exception_cleanup_routine      exception_cleanup;
+	uintptr_t                               __opaque[6];
+};
+
+
+
+int    __unwind_exception_filter(
+	struct _nt_exception_record *,
+	void *,
+	mcontext_t *,
+	struct _nt_dispatcher_context *,
+	__unwind_personality_routine);
+
+int    __unwind_exception_handler(
+	struct _nt_exception_record *,
+	uintptr_t,
+	mcontext_t *,
+	struct _nt_dispatcher_context *);
+
+int    __unwind_raise_exception(
+	struct __unwind_exception *);
+
+void   __unwind_delete_exception(
+	struct __unwind_exception *);
+
+void   __unwind_resume(
+	struct __unwind_exception *);
+
+int    __unwind_resume_or_rethrow(
+	struct __unwind_exception *);
+
+int    __unwind_force(
+	struct __unwind_exception *,
+	int (*)(
+		int, int, uintptr_t,
+		struct __unwind_exception *,
+		struct __unwind_context *,
+		void *),
+	void *);
+
+void * __unwind_get_language_specific_data(
+	struct __unwind_context *);
+
+int    __unwind_backtrace(
+	enum __unwind_reason_code (*)(
+		struct __unwind_context *,
+		void *),
+	void *);
+
+int    __unwind_calltrace();
+
+uintptr_t __unwind_get_ip(const struct __unwind_context *);
+void      __unwind_set_ip(struct __unwind_context *, uintptr_t);
+
+uintptr_t __unwind_get_gr(const struct __unwind_context *, int);
+void      __unwind_set_gr(struct __unwind_context *, int, uintptr_t);
+
+uintptr_t __unwind_get_data_rel_base(const struct __unwind_context *);
+uintptr_t __unwind_get_text_rel_base(const struct __unwind_context *);
+
+uintptr_t __unwind_get_cfa(const struct __unwind_context *);
+uintptr_t __unwind_get_ip_info(const struct __unwind_context *, int *);
+
+uintptr_t __unwind_get_region_start(const struct __unwind_context *);
+void *    __unwind_find_enclosing_function(const void *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
-- 
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