Export elfutils headers and lose the version number from the path.

Having the version number in the path just means that diffs for updates
are completely unusable.

perf refers to libdw.h, libdwfl.h, and version.h as <elfutils/libdw.h> and
so on, so we do still need to do some manual work there, but let's use
symlinks rather than duplicating the header files.

Change-Id: I9fd3c5f5024bde12747fdb1c06d21cdcb3418f03

1 files changed, 145 insertions, 0 deletions

diff --git a/src/backends/sparc_symbol.c b/src/backends/sparc_symbol.c
new file mode 100644
index 00000000..7896e9f4
--- /dev/null
+++ b/src/backends/sparc_symbol.c
@@ -0,0 +1,145 @@
+/* SPARC specific symbolic name handling.
+   Copyright (C) 2002, 2003, 2005, 2007, 2008 Red Hat, Inc.
+   This file is part of Red Hat elfutils.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+   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 <elf.h>
+#include <stddef.h>
+
+#define BACKEND		sparc_
+#include "libebl_CPU.h"
+
+/* Check for the simple reloc types.  */
+Elf_Type
+sparc_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
+{
+  switch (type)
+    {
+    case R_SPARC_8:
+      return ELF_T_BYTE;
+    case R_SPARC_16:
+    case R_SPARC_UA16:
+      return ELF_T_HALF;
+    case R_SPARC_32:
+    case R_SPARC_UA32:
+      return ELF_T_WORD;
+    case R_SPARC_64:
+    case R_SPARC_UA64:
+      return ELF_T_XWORD;
+    default:
+      return ELF_T_NUM;
+    }
+}
+
+/* Check whether machine flags are valid.  */
+bool
+sparc_machine_flag_check (GElf_Word flags)
+{
+  return ((flags &~ (EF_SPARCV9_MM
+		     | EF_SPARC_LEDATA
+		     | EF_SPARC_32PLUS
+		     | EF_SPARC_SUN_US1
+		     | EF_SPARC_SUN_US3)) == 0);
+}
+
+bool
+sparc_check_special_section (Ebl *ebl,
+			     int ndx __attribute__ ((unused)),
+			     const GElf_Shdr *shdr,
+			     const char *sname __attribute__ ((unused)))
+{
+  if ((shdr->sh_flags & (SHF_WRITE | SHF_EXECINSTR))
+      == (SHF_WRITE | SHF_EXECINSTR))
+    {
+      /* This is ordinarily flagged, but is valid for a PLT on SPARC.
+
+	 Look for the SHT_DYNAMIC section and the DT_PLTGOT tag in it.
+	 Its d_ptr should match the .plt section's sh_addr.  */
+
+      Elf_Scn *scn = NULL;
+      while ((scn = elf_nextscn (ebl->elf, scn)) != NULL)
+	{
+	  GElf_Shdr scn_shdr;
+	  if (likely (gelf_getshdr (scn, &scn_shdr) != NULL)
+	      && scn_shdr.sh_type == SHT_DYNAMIC
+	      && scn_shdr.sh_entsize != 0)
+	    {
+	      Elf_Data *data = elf_getdata (scn, NULL);
+	      if (data != NULL)
+		for (size_t i = 0; i < data->d_size / scn_shdr.sh_entsize; ++i)
+		  {
+		    GElf_Dyn dyn;
+		    if (unlikely (gelf_getdyn (data, i, &dyn) == NULL))
+		      break;
+		    if (dyn.d_tag == DT_PLTGOT)
+		      return dyn.d_un.d_ptr == shdr->sh_addr;
+		  }
+	      break;
+	    }
+	}
+    }
+
+  return false;
+}
+
+const char *
+sparc_symbol_type_name (int type,
+			char *buf __attribute__ ((unused)),
+			size_t len __attribute__ ((unused)))
+{
+  switch (type)
+    {
+    case STT_SPARC_REGISTER:
+      return "SPARC_REGISTER";
+    }
+  return NULL;
+}
+
+const char *
+sparc_dynamic_tag_name (int64_t tag,
+			char *buf __attribute__ ((unused)),
+			size_t len __attribute__ ((unused)))
+{
+  switch (tag)
+    {
+    case DT_SPARC_REGISTER:
+      return "SPARC_REGISTER";
+    }
+  return NULL;
+}
+
+bool
+sparc_dynamic_tag_check (int64_t tag)
+{
+  switch (tag)
+    {
+    case DT_SPARC_REGISTER:
+      return true;
+    }
+  return false;
+}