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-rw-r--r--REORG.TODO/sysdeps/generic/framestate.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/generic/framestate.c b/REORG.TODO/sysdeps/generic/framestate.c
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+++ b/REORG.TODO/sysdeps/generic/framestate.c
@@ -0,0 +1,52 @@
+/* __frame_state_for unwinder helper function wrapper.
+ Copyright (C) 2001-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <dlfcn.h>
+#include <stdlib.h>
+#define STATIC static
+#define __frame_state_for fallback_frame_state_for
+#include <unwind-dw2.c>
+#undef __frame_state_for
+#include <gnu/lib-names.h>
+
+typedef struct frame_state * (*framesf)(void *pc, struct frame_state *);
+struct frame_state *__frame_state_for (void *pc,
+ struct frame_state *frame_state);
+
+struct frame_state *
+__frame_state_for (void *pc, struct frame_state *frame_state)
+{
+ static framesf frame_state_for;
+
+ if (frame_state_for == NULL)
+ {
+ void *handle = __libc_dlopen (LIBGCC_S_SO);
+
+ if (handle == NULL
+ || (frame_state_for
+ = (framesf) __libc_dlsym (handle, "__frame_state_for")) == NULL)
+#ifndef __USING_SJLJ_EXCEPTIONS__
+ frame_state_for = fallback_frame_state_for;
+#else
+ frame_state_for = abort;
+#endif
+ }
+
+ return frame_state_for (pc, frame_state);
+}