1 files changed, 90 insertions, 0 deletions
diff --git a/src/third_party/unwind/dist/src/ppc32/Gregs.c b/src/third_party/unwind/dist/src/ppc32/Gregs.c
new file mode 100644
index 00000000000..9344455e6cc
--- /dev/null
+++ b/src/third_party/unwind/dist/src/ppc32/Gregs.c
@@ -0,0 +1,90 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2006-2007 IBM
+   Contributed by
+     Corey Ashford <cjashfor@us.ibm.com>
+     Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.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"
+
+HIDDEN int
+tdep_access_reg (struct cursor *c, unw_regnum_t reg, unw_word_t *valp,
+                 int write)
+{
+  struct dwarf_loc loc;
+
+  switch (reg)
+    {
+    case UNW_TDEP_IP:
+      if (write)
+        {
+          c->dwarf.ip = *valp;  /* update the IP cache */
+          if (c->dwarf.pi_valid && (*valp < c->dwarf.pi.start_ip
+                                    || *valp >= c->dwarf.pi.end_ip))
+            c->dwarf.pi_valid = 0;      /* new IP outside of current proc */
+        }
+      else
+        *valp = c->dwarf.ip;
+      return 0;
+
+    case UNW_TDEP_SP:
+      if (write)
+        return -UNW_EREADONLYREG;
+      *valp = c->dwarf.cfa;
+      return 0;
+
+
+    default:
+      break;
+    }
+
+  /* make sure it's not an FP or VR register */
+  if ((((unsigned) (reg - UNW_PPC32_F0)) <= 31))
+    return -UNW_EBADREG;
+
+  loc = c->dwarf.loc[reg];
+
+  if (write)
+    return dwarf_put (&c->dwarf, loc, *valp);
+  else
+    return dwarf_get (&c->dwarf, loc, valp);
+}
+
+HIDDEN int
+tdep_access_fpreg (struct cursor *c, unw_regnum_t reg, unw_fpreg_t *valp,
+                   int write)
+{
+  struct dwarf_loc loc;
+
+  if ((unsigned) (reg - UNW_PPC32_F0) < 32)
+  {
+    loc = c->dwarf.loc[reg];
+    if (write)
+      return dwarf_putfp (&c->dwarf, loc, *valp);
+    else
+      return dwarf_getfp (&c->dwarf, loc, valp);
+  }
+
+  return -UNW_EBADREG;
+}
+