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.

---
 src/arch/nt64/unwind.c | 148 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 src/arch/nt64/unwind.c

(limited to 'src')

diff --git a/src/arch/nt64/unwind.c b/src/arch/nt64/unwind.c
new file mode 100644
index 0000000..28026c6
--- /dev/null
+++ b/src/arch/nt64/unwind.c
@@ -0,0 +1,148 @@
+#include <stdint.h>
+#include <signal.h>
+#include <sys/unwind.h>
+#include "psxseh.h"
+
+extern const struct __seh_vtbl * __seh_vtbl;
+
+
+int __unwind_exception_filter(
+	struct _nt_exception_record * erec,
+	void * fctx,
+	mcontext_t * tctx,
+	struct _nt_dispatcher_context * dctx,
+	__unwind_personality_routine uw_routine)
+{
+	return __seh_vtbl->seh_exception_filter(
+		erec,fctx,tctx,dctx,uw_routine);
+}
+
+
+int __unwind_exception_handler(
+	struct _nt_exception_record * erec,
+	uintptr_t fbase,
+	mcontext_t * tctx,
+	struct _nt_dispatcher_context * dctx)
+{
+	return __seh_vtbl->seh_exception_handler(
+		erec,fbase,tctx,dctx);
+}
+
+
+int __unwind_raise_exception(struct __unwind_exception * e)
+{
+	return __seh_vtbl->seh_unwind_raise_exception(e);
+}
+
+
+void __unwind_delete_exception(struct __unwind_exception * e)
+{
+	return __seh_vtbl->seh_unwind_delete_exception(e);
+}
+
+
+void __unwind_resume(struct __unwind_exception * e)
+{
+	return __seh_vtbl->seh_unwind_resume(e);
+}
+
+
+int __unwind_resume_or_rethrow(struct __unwind_exception * e)
+{
+	return __seh_vtbl->seh_unwind_resume_or_rethrow(e);
+}
+
+
+int __unwind_force(
+	struct __unwind_exception * e,
+	int (*stop_fn)(
+		int, int, uintptr_t,
+		struct __unwind_exception *,
+		struct __unwind_context *,
+		void *),
+	void * ctx)
+{
+	return __seh_vtbl->seh_unwind_force(e,stop_fn,ctx);
+}
+
+
+void * __unwind_get_language_specific_data(struct __unwind_context * uwctx)
+{
+	return __seh_vtbl->seh_unwind_get_language_specific_data(uwctx);
+}
+
+
+int __unwind_backtrace(
+	enum __unwind_reason_code (*trace_fn)(
+		struct __unwind_context *,
+		void *),
+	void * ctx)
+{
+	return __seh_vtbl->seh_unwind_backtrace(trace_fn,ctx);
+}
+
+
+int __unwind_calltrace()
+{
+	return __seh_vtbl->seh_unwind_calltrace();
+}
+
+
+uintptr_t __unwind_get_ip(const struct __unwind_context * uwctx)
+{
+	return __seh_vtbl->seh_unwind_get_ip(uwctx);
+}
+
+
+void __unwind_set_ip(struct __unwind_context * uwctx, uintptr_t ip)
+{
+	return __seh_vtbl->seh_unwind_set_ip(uwctx,ip);
+}
+
+
+uintptr_t __unwind_get_gr(const struct __unwind_context * uwctx, int idx)
+{
+	return __seh_vtbl->seh_unwind_get_gr(uwctx,idx);
+}
+
+
+void __unwind_set_gr(struct __unwind_context * uwctx, int idx, uintptr_t rval)
+{
+	return __seh_vtbl->seh_unwind_set_gr(uwctx,idx,rval);
+}
+
+
+uintptr_t __unwind_get_data_rel_base(const struct __unwind_context * uwctx)
+{
+	return __seh_vtbl->seh_unwind_get_data_rel_base(uwctx);
+}
+
+
+uintptr_t __unwind_get_text_rel_base(const struct __unwind_context * uwctx)
+{
+	return __seh_vtbl->seh_unwind_get_text_rel_base(uwctx);
+}
+
+
+uintptr_t __unwind_get_cfa(const struct __unwind_context * uwctx)
+{
+	return __seh_vtbl->seh_unwind_get_cfa(uwctx);
+}
+
+
+uintptr_t __unwind_get_ip_info(const struct __unwind_context * uwctx, int * pinfo)
+{
+	return __seh_vtbl->seh_unwind_get_ip_info(uwctx,pinfo);
+}
+
+
+uintptr_t __unwind_get_region_start(const struct __unwind_context * uwctx)
+{
+	return __seh_vtbl->seh_unwind_get_region_start(uwctx);
+}
+
+
+void * __unwind_find_enclosing_function(const void * addr)
+{
+	return __seh_vtbl->seh_unwind_find_enclosing_function(addr);
+}
-- 
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