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, 133 insertions, 0 deletions

diff --git a/src/libasm/asm_newabssym.c b/src/libasm/asm_newabssym.c
new file mode 100644
index 00000000..1dacb012
--- /dev/null
+++ b/src/libasm/asm_newabssym.c
@@ -0,0 +1,133 @@
+/* Create new ABS symbol.
+   Copyright (C) 2002 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.
+
+   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 <stdlib.h>
+#include <string.h>
+
+#include <libasmP.h>
+#include <system.h>
+
+
+/* Object for special COMMON section.  */
+static const AsmScn_t __libasm_abs_scn =
+  {
+    .data = {
+      .main = {
+	.scn = ASM_ABS_SCN
+      }
+    }
+  };
+
+
+AsmSym_t *
+asm_newabssym (ctx, name, size, value, type, binding)
+     AsmCtx_t *ctx;
+     const char *name;
+     GElf_Xword size;
+     GElf_Addr value;
+     int type;
+     int binding;
+{
+  AsmSym_t *result;
+
+  if (ctx == NULL)
+    /* Something went wrong before.  */
+    return NULL;
+
+  /* Common symbols are public.  Therefore the user must provide a
+     name.  */
+  if (name == NULL)
+    {
+      __libasm_seterrno (ASM_E_INVALID);
+      return NULL;
+    }
+
+  rwlock_wrlock (ctx->lock);
+
+  result = (AsmSym_t *) malloc (sizeof (AsmSym_t));
+  if (result == NULL)
+    return NULL;
+
+  result->scn = (AsmScn_t *) &__libasm_abs_scn;
+  result->size = size;
+  result->type = type;
+  result->binding = binding;
+  result->symidx = 0;
+  result->strent = ebl_strtabadd (ctx->symbol_strtab, name, 0);
+
+  /* The value of an ABS symbol must not be modified.  Since there are
+     no subsection and the initial offset of the section is 0 we can
+     get the alignment recorded by storing it into the offset
+     field.  */
+  result->offset = value;
+
+  if (unlikely (ctx->textp))
+    {
+      /* An absolute symbol can be defined by giving a symbol a
+	 specific value.  */
+      if (binding == STB_GLOBAL)
+	fprintf (ctx->out.file, "\t.globl %s\n", name);
+      else if (binding == STB_WEAK)
+	fprintf (ctx->out.file, "\t.weak %s\n", name);
+
+      if (type == STT_OBJECT)
+	fprintf (ctx->out.file, "\t.type %s,@object\n", name);
+      else if (type == STT_FUNC)
+	fprintf (ctx->out.file, "\t.type %s,@function\n", name);
+
+      fprintf (ctx->out.file, "%s = %llu\n",
+	       name, (unsigned long long int) value);
+
+      if (size != 0)
+	fprintf (ctx->out.file, "\t.size %s, %llu\n",
+		 name, (unsigned long long int) size);
+    }
+  else
+    {
+      /* Put the symbol in the hash table so that we can later find it.  */
+      if (asm_symbol_tab_insert (&ctx->symbol_tab, elf_hash (name), result)
+	  != 0)
+	{
+	  /* The symbol already exists.  */
+	  __libasm_seterrno (ASM_E_DUPLSYM);
+	  free (result);
+	  result = NULL;
+	}
+      else if (name != NULL && asm_emit_symbol_p (name))
+	/* Only count non-private symbols.  */
+	++ctx->nsymbol_tab;
+    }
+
+  rwlock_unlock (ctx->lock);
+
+  return result;
+}