1 files changed, 74 insertions, 0 deletions
diff --git a/src/third_party/unwind/dist/src/x86_64/Gget_save_loc.c b/src/third_party/unwind/dist/src/x86_64/Gget_save_loc.c
new file mode 100644
index 00000000000..40568700e0e
--- /dev/null
+++ b/src/third_party/unwind/dist/src/x86_64/Gget_save_loc.c
@@ -0,0 +1,74 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2004 Hewlett-Packard Co
+        Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+   Modified for x86_64 by Max Asbock <masbock@us.ibm.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_i.h"
+
+int
+unw_get_save_loc (unw_cursor_t *cursor, int reg, unw_save_loc_t *sloc)
+{
+  struct cursor *c = (struct cursor *) cursor;
+  dwarf_loc_t loc;
+
+  loc = DWARF_NULL_LOC;         /* default to "not saved" */
+
+  switch (reg)
+    {
+    case UNW_X86_64_RBX: loc = c->dwarf.loc[RBX]; break;
+    case UNW_X86_64_RSP: loc = c->dwarf.loc[RSP]; break;
+    case UNW_X86_64_RBP: loc = c->dwarf.loc[RBP]; break;
+    case UNW_X86_64_R12: loc = c->dwarf.loc[R12]; break;
+    case UNW_X86_64_R13: loc = c->dwarf.loc[R13]; break;
+    case UNW_X86_64_R14: loc = c->dwarf.loc[R14]; break;
+    case UNW_X86_64_R15: loc = c->dwarf.loc[R15]; break;
+    case UNW_X86_64_RIP: loc = c->dwarf.loc[RIP]; break;
+
+    default:
+      break;
+    }
+
+  memset (sloc, 0, sizeof (*sloc));
+
+  if (DWARF_IS_NULL_LOC (loc))
+    {
+      sloc->type = UNW_SLT_NONE;
+      return 0;
+    }
+
+#if !defined(UNW_LOCAL_ONLY)
+  if (DWARF_IS_REG_LOC (loc))
+    {
+      sloc->type = UNW_SLT_REG;
+      sloc->u.regnum = DWARF_GET_LOC (loc);
+    }
+  else
+#endif
+    {
+      sloc->type = UNW_SLT_MEMORY;
+      sloc->u.addr = DWARF_GET_LOC (loc);
+    }
+  return 0;
+}