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, 241 insertions, 0 deletions

diff --git a/src/libebl/eblobjnote.c b/src/libebl/eblobjnote.c
new file mode 100644
index 00000000..ec5bb7da
--- /dev/null
+++ b/src/libebl/eblobjnote.c
@@ -0,0 +1,241 @@
+/* Print contents of object file note.
+   Copyright (C) 2002, 2007, 2009, 2011 Red Hat, Inc.
+   This file is part of Red Hat elfutils.
+   Written by Ulrich Drepper <drepper@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.
+
+   In addition, as a special exception, Red Hat, Inc. gives You the
+   additional right to link the code of Red Hat elfutils with code licensed
+   under any Open Source Initiative certified open source license
+   (http://www.opensource.org/licenses/index.php) which requires the
+   distribution of source code with any binary distribution and to
+   distribute linked combinations of the two.  Non-GPL Code permitted under
+   this exception must only link to the code of Red Hat elfutils through
+   those well defined interfaces identified in the file named EXCEPTION
+   found in the source code files (the "Approved Interfaces").  The files
+   of Non-GPL Code may instantiate templates or use macros or inline
+   functions from the Approved Interfaces without causing the resulting
+   work to be covered by the GNU General Public License.  Only Red Hat,
+   Inc. may make changes or additions to the list of Approved Interfaces.
+   Red Hat's grant of this exception is conditioned upon your not adding
+   any new exceptions.  If you wish to add a new Approved Interface or
+   exception, please contact Red Hat.  You must obey the GNU General Public
+   License in all respects for all of the Red Hat elfutils code and other
+   code used in conjunction with Red Hat elfutils except the Non-GPL Code
+   covered by this exception.  If you modify this file, you may extend this
+   exception to your version of the file, but you are not obligated to do
+   so.  If you do not wish to provide this exception without modification,
+   you must delete this exception statement from your version and license
+   this file solely under the GPL without exception.
+
+   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 <inttypes.h>
+#include <stdio.h>
+#include <string.h>
+#include <libeblP.h>
+
+
+void
+ebl_object_note (ebl, name, type, descsz, desc)
+     Ebl *ebl;
+     const char *name;
+     uint32_t type;
+     uint32_t descsz;
+     const char *desc;
+{
+  if (! ebl->object_note (name, type, descsz, desc))
+    /* The machine specific function did not know this type.  */
+
+    if (strcmp ("stapsdt", name) == 0)
+      {
+	if (type != 3)
+	  {
+	    printf (gettext ("unknown SDT version %u\n"), type);
+	    return;
+	  }
+
+	/* Descriptor starts with three addresses, pc, base ref and
+	   semaphore.  Then three zero terminated strings provider,
+	   name and arguments.  */
+
+	union
+	{
+	  Elf64_Addr a64[3];
+	  Elf32_Addr a32[3];
+	} addrs;
+
+	size_t addrs_size = gelf_fsize (ebl->elf, ELF_T_ADDR, 3, EV_CURRENT);
+	if (descsz < addrs_size + 3)
+	  {
+	  invalid_sdt:
+	    printf (gettext ("invalid SDT probe descriptor\n"));
+	    return;
+	  }
+
+	Elf_Data src =
+	  {
+	    .d_type = ELF_T_ADDR, .d_version = EV_CURRENT,
+	    .d_buf = (void *) desc, .d_size = addrs_size
+	  };
+
+	Elf_Data dst =
+	  {
+	    .d_type = ELF_T_ADDR, .d_version = EV_CURRENT,
+	    .d_buf = &addrs, .d_size = addrs_size
+	  };
+
+	if (gelf_xlatetom (ebl->elf, &dst, &src,
+			   elf_getident (ebl->elf, NULL)[EI_DATA]) == NULL)
+	  {
+	    printf ("%s\n", elf_errmsg (-1));
+	    return;
+	  }
+
+	const char *provider = desc + addrs_size;
+	const char *pname = memchr (provider, '\0', desc + descsz - provider);
+	if (pname == NULL)
+	  goto invalid_sdt;
+
+	++pname;
+	const char *args = memchr (pname, '\0', desc + descsz - pname);
+	if (args == NULL ||
+	    memchr (++args, '\0', desc + descsz - pname) != desc + descsz - 1)
+	  goto invalid_sdt;
+
+	GElf_Addr pc;
+	GElf_Addr base;
+	GElf_Addr sem;
+	if (gelf_getclass (ebl->elf) == ELFCLASS32)
+	  {
+	    pc = addrs.a32[0];
+	    base = addrs.a32[1];
+	    sem = addrs.a32[2];
+	  }
+	else
+	  {
+	    pc = addrs.a64[0];
+	    base = addrs.a64[1];
+	    sem = addrs.a64[2];
+	  }
+
+	printf (gettext ("    PC: "));
+	printf ("%#" PRIx64 ",", pc);
+	printf (gettext (" Base: "));
+	printf ("%#" PRIx64 ",", base);
+	printf (gettext (" Semaphore: "));
+	printf ("%#" PRIx64 "\n", sem);
+	printf (gettext ("    Provider: "));
+	printf ("%s,", provider);
+	printf (gettext (" Name: "));
+	printf ("%s,", pname);
+	printf (gettext (" Args: "));
+	printf ("'%s'\n", args);
+	return;
+      }
+
+    switch (type)
+      {
+      case NT_GNU_BUILD_ID:
+	if (strcmp (name, "GNU") == 0 && descsz > 0)
+	  {
+	    printf (gettext ("    Build ID: "));
+	    uint_fast32_t i;
+	    for (i = 0; i < descsz - 1; ++i)
+	      printf ("%02" PRIx8, (uint8_t) desc[i]);
+	    printf ("%02" PRIx8 "\n", (uint8_t) desc[i]);
+	  }
+	break;
+
+      case NT_GNU_GOLD_VERSION:
+	if (strcmp (name, "GNU") == 0 && descsz > 0)
+	  /* A non-null terminated version string.  */
+	  printf (gettext ("    Linker version: %.*s\n"),
+		  (int) descsz, desc);
+	break;
+
+      case NT_GNU_ABI_TAG:
+	if (strcmp (name, "GNU") == 0 && descsz >= 8 && descsz % 4 == 0)
+	  {
+	    Elf_Data in =
+	      {
+		.d_version = EV_CURRENT,
+		.d_type = ELF_T_WORD,
+		.d_size = descsz,
+		.d_buf = (void *) desc
+	      };
+	    uint32_t buf[descsz / 4];
+	    Elf_Data out =
+	      {
+		.d_version = EV_CURRENT,
+		.d_type = ELF_T_WORD,
+		.d_size = descsz,
+		.d_buf = buf
+	      };
+
+	    if (elf32_xlatetom (&out, &in, ebl->data) != NULL)
+	      {
+		const char *os;
+		switch (buf[0])
+		  {
+		  case ELF_NOTE_OS_LINUX:
+		    os = "Linux";
+		    break;
+
+		  case ELF_NOTE_OS_GNU:
+		    os = "GNU";
+		    break;
+
+		  case ELF_NOTE_OS_SOLARIS2:
+		    os = "Solaris";
+		    break;
+
+		  case ELF_NOTE_OS_FREEBSD:
+		    os = "FreeBSD";
+		    break;
+
+		  default:
+		    os = "???";
+		    break;
+		  }
+
+		printf (gettext ("    OS: %s, ABI: "), os);
+		for (size_t cnt = 1; cnt < descsz / 4; ++cnt)
+		  {
+		    if (cnt > 1)
+		      putchar_unlocked ('.');
+		    printf ("%" PRIu32, buf[cnt]);
+		  }
+		putchar_unlocked ('\n');
+	      }
+	    break;
+	  }
+	/* FALLTHROUGH */
+
+      default:
+	/* Unknown type.  */
+	break;
+      }
+}