1 files changed, 42 insertions, 0 deletions
diff --git a/src/third_party/unwind/dist/src/unwind/GetIPInfo.c b/src/third_party/unwind/dist/src/unwind/GetIPInfo.c
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index 00000000000..e8ee7fd7f1b
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+++ b/src/third_party/unwind/dist/src/unwind/GetIPInfo.c
@@ -0,0 +1,42 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2009 Red Hat
+        Contributed by Jan Kratochvil <jan.kratochvil@redhat.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#include "unwind-internal.h"
+
+/* gcc/unwind-dw2.c: Retrieve the return address and flag whether that IP is
+   before or after first not yet fully executed instruction.  */
+
+unsigned long
+_Unwind_GetIPInfo (struct _Unwind_Context *context, int *ip_before_insn)
+{
+  unw_word_t val;
+
+  unw_get_reg (&context->cursor, UNW_REG_IP, &val);
+  *ip_before_insn = unw_is_signal_frame (&context->cursor);
+  return val;
+}
+
+unsigned long __libunwind_Unwind_GetIPInfo (struct _Unwind_Context *, int *)
+     ALIAS (_Unwind_GetIPInfo);