1 files changed, 31 insertions, 0 deletions
diff --git a/sysdeps/generic/uw-sigframe.h b/sysdeps/generic/uw-sigframe.h
new file mode 100644
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+++ b/sysdeps/generic/uw-sigframe.h
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+/* Internal header file for handling signal frames.  Generic version.
+   Copyright (C) 2025 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* Each architecture that supports SFrame may need to define several
+   macros to handle exceptional cases during stack backtracing.
+
+   MD_DECODE_SIGNAL_FRAME(frame) should recover frame information when
+   a signal-related exception occurs.  The input frame must contain a
+   valid program counter (PC) field.  On success, the macro should
+   return _URC_NO_REASON.
+
+   MD_DETECT_OUTERMOST_FRAME(frame) is used to detect the outermost
+   stack frame.  It returns _URC_NO_REASON upon successful
+   detection.
+
+   The FRAME structure is defined in sysdeps/generic/sframe.h  */