1 files changed, 123 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/register-dump.h b/ports/sysdeps/unix/sysv/linux/tile/tilegx/register-dump.h
new file mode 100644
index 0000000000..d5d06f719b
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/register-dump.h
@@ -0,0 +1,123 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   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 <sys/uio.h>
+#include <_itoa.h>
+
+/* We will print the register dump in this format:
+
+ R0:  XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R4:  XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R8:  XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R12: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R16: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R20: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R24: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R28: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R32: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R36: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R40: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R44: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R48: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R52: XXXXXXXXXXXXXXXX  TP: XXXXXXXXXXXXXXXX
+ SP:  XXXXXXXXXXXXXXXX  LR: XXXXXXXXXXXXXXXX
+
+ PC:  XXXXXXXXXXXXXXXX  ICS: X  FAULTNUM: XX
+
+ */
+
+static void
+hexvalue (unsigned long int value, char *buf, size_t len)
+{
+  char *cp = _itoa_word (value, buf + len, 16, 0);
+  while (cp > buf)
+    *--cp = '0';
+}
+
+static void
+register_dump (int fd, mcontext_t *ctx)
+{
+  char regs[59][16];
+  struct iovec iov[132];
+  size_t nr = 0;
+  unsigned int i;
+
+#define ADD_STRING(str) \
+  iov[nr].iov_base = (char *) str;					      \
+  iov[nr].iov_len = strlen (str);					      \
+  ++nr
+#define ADD_MEM(str, len) \
+  iov[nr].iov_base = str;						      \
+  iov[nr].iov_len = len;						      \
+  ++nr
+
+  /* Generate strings of register contents.  */
+  for (i = 0; i < 56; ++i)
+    hexvalue (ctx->gregs[i], regs[i], 16);
+  hexvalue (ctx->pc, regs[56], 16);
+  hexvalue (ctx->ics, regs[57], 1);
+  hexvalue (ctx->faultnum, regs[58], 2);
+
+  /* Generate the output.  */
+  for (i = 0; i < 56;)
+    {
+      const char *prefixes[] = {
+        "Register dump:\n\n R0:  ",
+        "\n R4:  ",
+        "\n R8:  ",
+        "\n R12: ",
+        "\n R16: ",
+        "\n R20:  ",
+        "\n R24:  ",
+        "\n R28:  ",
+        "\n R32:  ",
+        "\n R36:  ",
+        "\n R40:  ",
+        "\n R44:  ",
+        "\n R48:  "
+      };
+      ADD_STRING (prefixes[i / 4]);
+      do
+        {
+          ADD_MEM (regs[i], 16);
+          ADD_STRING (" ");
+        }
+      while (++i % 4);
+    }
+  ADD_STRING ("\n R52: ");
+  ADD_MEM (regs[52], 16);
+  ADD_STRING ("  TP: ");
+  ADD_MEM (regs[53], 16);
+  ADD_STRING ("\n SP: ");
+  ADD_MEM (regs[54], 16);
+  ADD_STRING ("  LR: ");
+  ADD_MEM (regs[55], 16);
+  ADD_STRING ("\n\n PC:  ");
+  ADD_MEM (regs[56], 16);
+  ADD_STRING ("  ICS: ");
+  ADD_MEM (regs[57], 1);
+  ADD_STRING ("  FAULTNUM: ");
+  ADD_MEM (regs[58], 2);
+  ADD_STRING ("\n");
+
+  /* Write the stuff out.  */
+  writev (fd, iov, nr);
+}
+
+
+#define REGISTER_DUMP register_dump (fd, &ctx->uc_mcontext)