[PATCH 3/5] Add register information for SuperH.

[Matt Fleming <matt at console-pimps dot org>]

---
 backends/Makefile.am |    2 +-
 backends/sh_init.c   |    1 +
 backends/sh_regs.c   |  187 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 189 insertions(+), 1 deletions(-)
 create mode 100644 backends/sh_regs.c

diff --git a/backends/Makefile.am b/backends/Makefile.am
index fc6654f..28ea745 100644
--- a/backends/Makefile.am
+++ b/backends/Makefile.am
@@ -52,7 +52,7 @@ cpu_i386 = ../libcpu/libcpu_i386.a
 libebl_i386_pic_a_SOURCES = $(i386_SRCS)
 am_libebl_i386_pic_a_OBJECTS = $(i386_SRCS:.c=.os)
 
-sh_SRCS = sh_init.c sh_symbol.c sh_corenote.c
+sh_SRCS = sh_init.c sh_symbol.c sh_corenote.c sh_regs.c
 libebl_sh_pic_a_SOURCES = $(sh_SRCS)
 am_libebl_sh_pic_a_OBJECTS = $(sh_SRCS:.c=.os)
 
diff --git a/backends/sh_init.c b/backends/sh_init.c
index fd54888..480f1bc 100644
--- a/backends/sh_init.c
+++ b/backends/sh_init.c
@@ -53,6 +53,7 @@ sh_init (elf, machine, eh, ehlen)
   HOOK (eh, reloc_simple_type);
   HOOK (eh, gotpc_reloc_check);
   HOOK (eh, core_note);
+  HOOK (eh, register_info);
 
   return MODVERSION;
 }
diff --git a/backends/sh_regs.c b/backends/sh_regs.c
new file mode 100644
index 0000000..dbf4acc
--- /dev/null
+++ b/backends/sh_regs.c
@@ -0,0 +1,187 @@
+/* Register names and numbers for SH DWARF.
+   Copyright (C) 2010 Matt Fleming <matt@console-pimps.org>
+   This file is part of Red Hat elfutils.
+
+   Red Hat elfutils is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by the
+   Free Software Foundation; version 2 of the License.
+
+   Red Hat elfutils 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with Red Hat elfutils; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+   Red Hat elfutils is an included package of the Open Invention Network.
+   An included package of the Open Invention Network is a package for which
+   Open Invention Network licensees cross-license their patents.  No patent
+   license is granted, either expressly or impliedly, by designation as an
+   included package.  Should you wish to participate in the Open Invention
+   Network licensing program, please visit www.openinventionnetwork.com
+   <http://www.openinventionnetwork.com>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <assert.h>
+#include <dwarf.h>
+#include <string.h>
+
+#define BACKEND sh_
+#include "libebl_CPU.h"
+
+ssize_t
+sh_register_info (Ebl *ebl __attribute__ ((unused)),
+		  int regno, char *name, size_t namelen,
+		  const char **prefix, const char **setname,
+		  int *bits, int *type)
+{
+  if (name == NULL)
+    return 104;
+
+  if (regno < 0 || regno > 103 || namelen < 6)
+    return -1;
+
+  *prefix = NULL;
+  *bits = 32;
+  *type = DW_ATE_signed;
+
+  switch (regno)
+    {
+    case 0 ... 9:
+      *setname = "integer";
+      name[0] = 'r';
+      name[1] = regno + '0';
+      namelen = 2;
+      break;
+
+    case 10 ... 15:
+      *setname = "integer";
+      name[0] = 'r';
+      name[1] = '1';
+      name[2] = regno - 10 + '0';
+      namelen = 3;
+      break;
+
+    case 16:
+      *setname = "system";
+      *type = DW_ATE_address;
+      name[0] = 'p';
+      name[1] = 'c';
+      namelen = 2;
+      break;
+
+    case 17:
+      *setname = "system";
+      *type = DW_ATE_address;
+      name[0] = 'p';
+      name[1] = 'r';
+      namelen = 2;
+      break;
+
+    case 18:
+      *setname = "control";
+      *type = DW_ATE_unsigned;
+      name[0] = 's';
+      name[1] = 'r';
+      namelen = 2;
+      break;
+
+    case 19:
+      *setname = "control";
+      *type = DW_ATE_unsigned;
+      name[0] = 'g';
+      name[1] = 'b';
+      name[2] = 'r';
+      namelen = 3;
+      break;
+
+    case 20:
+      *setname = "system";
+      name[0] = 'm';
+      name[1] = 'a';
+      name[2] = 'c';
+      name[3] = 'h';
+      namelen = 4;
+      break;
+
+    case 21:
+      *setname = "system";
+      name[0] = 'm';
+      name[1] = 'a';
+      name[2] = 'c';
+      name[3] = 'l';
+      namelen = 4;
+
+      break;
+
+    case 23:
+      *setname = "system";
+      *type = DW_ATE_unsigned;
+      name[0] = 'f';
+      name[1] = 'p';
+      name[2] = 'u';
+      name[3] = 'l';
+      namelen = 4;
+      break;
+
+    case 24:
+      *setname = "system";
+      *type = DW_ATE_unsigned;
+      name[0] = 'f';
+      name[1] = 'p';
+      name[2] = 's';
+      name[3] = 'c';
+      name[4] = 'r';
+      namelen = 5;
+      break;
+
+    case 25 ... 34:
+      *setname = "fpu";
+      *type = DW_ATE_float;
+      name[0] = 'f';
+      name[1] = 'r';
+      name[2] = regno - 25 + '0';
+      namelen = 3;
+      break;
+
+    case 35 ... 40:
+      *setname = "fpu";
+      *type = DW_ATE_float;
+      name[0] = 'f';
+      name[1] = 'r';
+      name[2] = '1';
+      name[3] = regno - 35 + '0';
+      namelen = 4;
+      break;
+
+    case 87 ... 96:
+      *type = DW_ATE_float;
+      *setname = "fpu";
+      name[0] = 'x';
+      name[1] = 'f';
+      name[2] = regno - 87 + '0';
+      namelen = 3;
+      break;
+
+    case 97 ... 103:
+      *type = DW_ATE_float;
+      *setname = "fpu";
+      name[0] = 'x';
+      name[1] = 'f';
+      name[2] = '1';
+      name[3] = regno - 97 + '0';
+      namelen = 4;
+      break;
+
+    default:
+      return 0;
+    }
+
+  name[namelen++] = '\0';
+  return namelen;
+}
-- 
1.7.0.2