Upgrade elfutils from version 0.97 to 0.138

This upgrade is in preparation for adding perf to the Android tree, where
perf needs newer version of elfutils.

This particular snapshot also cleans up the current makefile where only
the host version of libelf.a (needed by elftree). Additional build
targets for libebl.a, libebl_arm.a, and libebl_sh.a are eliminated since
they are not used in the tree at all.

Changes that build other target modules and associated modifications to
work with bionic will be added later.

Change-Id: Ifa808ba5ad2881ccb2c0cf44d134931faad801e1

1 files changed, 143 insertions, 0 deletions

diff --git a/backends/s390_regs.c b/backends/s390_regs.c
new file mode 100644
index 00000000..7e8113a2
--- /dev/null
+++ b/backends/s390_regs.c
@@ -0,0 +1,143 @@
+/* Register names and numbers for S/390 DWARF.
+   Copyright (C) 2006 Red Hat, Inc.
+   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 <string.h>
+#include <dwarf.h>
+
+#define BACKEND s390_
+#include "libebl_CPU.h"
+
+
+/*
+zseries (64)
+
+0-15	gpr0-gpr15	x
+16-19	fpr[0246]
+20-24	fpr[13578]
+25-27	fpr1[024]
+28	fpr9
+29-31	fpr1[135]
+32-47	cr0-cr15	x
+48-63	ar0-ar15	x
+64	psw_mask
+65	psw_address
+*/
+
+
+ssize_t
+s390_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 66;
+
+  if (regno < 0 || regno > 65 || namelen < 7)
+    return -1;
+
+  *prefix = "%";
+
+  *bits = ebl->class == ELFCLASS64 ? 64 : 32;
+  *type = DW_ATE_unsigned;
+  if (regno < 16)
+    {
+      *setname = "integer";
+      *type = DW_ATE_signed;
+    }
+  else if (regno < 32)
+    {
+      *setname = "FPU";
+      *type = DW_ATE_float;
+      *bits = 64;
+    }
+  else if (regno < 48 || regno > 63)
+    *setname = "control";
+  else
+    {
+      *setname = "access";
+      *bits = 32;
+    }
+
+  switch (regno)
+    {
+    case 0 ... 9:
+      name[0] = 'r';
+      name[1] = regno + '0';
+      namelen = 2;
+      break;
+
+    case 10 ... 15:
+      name[0] = 'r';
+      name[1] = '1';
+      name[2] = regno - 10 + '0';
+      namelen = 3;
+      break;
+
+    case 16 ... 31:
+      name[0] = 'f';
+      regno = (regno & 8) | ((regno & 4) >> 2) | ((regno & 3) << 1);
+      namelen = 1;
+      if (regno >= 10)
+	{
+	  regno -= 10;
+	  name[namelen++] = '1';
+	}
+      name[namelen++] = regno + '0';
+      break;
+
+    case 32 + 0 ... 32 + 9:
+    case 48 + 0 ... 48 + 9:
+      name[0] = regno < 48 ? 'c' : 'a';
+      name[1] = (regno & 15) + '0';
+      namelen = 2;
+      break;
+
+    case 32 + 10 ... 32 + 15:
+    case 48 + 10 ... 48 + 15:
+      name[0] = regno < 48 ? 'c' : 'a';
+      name[1] = '1';
+      name[2] = (regno & 15) - 10 + '0';
+      namelen = 3;
+      break;
+
+    case 64:
+      return stpcpy (name, "pswm") + 1 - name;
+    case 65:
+      *type = DW_ATE_address;
+      return stpcpy (name, "pswa") + 1 - name;
+
+    default:
+      *setname = NULL;
+      return 0;
+    }
+
+  name[namelen++] = '\0';
+  return namelen;
+}