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      1 /* Return note type name.
      2    Copyright (C) 2002, 2007, 2009, 2011, 2016, 2018 Red Hat, Inc.
      3    This file is part of elfutils.
      4    Written by Ulrich Drepper <drepper (at) redhat.com>, 2002.
      5 
      6    This file is free software; you can redistribute it and/or modify
      7    it under the terms of either
      8 
      9      * the GNU Lesser General Public License as published by the Free
     10        Software Foundation; either version 3 of the License, or (at
     11        your option) any later version
     12 
     13    or
     14 
     15      * the GNU General Public License as published by the Free
     16        Software Foundation; either version 2 of the License, or (at
     17        your option) any later version
     18 
     19    or both in parallel, as here.
     20 
     21    elfutils is distributed in the hope that it will be useful, but
     22    WITHOUT ANY WARRANTY; without even the implied warranty of
     23    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     24    General Public License for more details.
     25 
     26    You should have received copies of the GNU General Public License and
     27    the GNU Lesser General Public License along with this program.  If
     28    not, see <http://www.gnu.org/licenses/>.  */
     29 
     30 #ifdef HAVE_CONFIG_H
     31 # include <config.h>
     32 #endif
     33 
     34 #include <inttypes.h>
     35 #include <stdio.h>
     36 #include <string.h>
     37 #include <libeblP.h>
     38 
     39 
     40 const char *
     41 ebl_object_note_type_name (Ebl *ebl, const char *name, uint32_t type,
     42 			   GElf_Word descsz,
     43 			   char *buf, size_t len)
     44 {
     45   const char *res = ebl->object_note_type_name (name, type, buf, len);
     46 
     47   if (res == NULL)
     48     {
     49       if (strcmp (name, "stapsdt") == 0)
     50 	{
     51 	  snprintf (buf, len, "Version: %" PRIu32, type);
     52 	  return buf;
     53 	}
     54 
     55 #define ELF_NOTE_GOPKGLIST 1
     56 #define ELF_NOTE_GOABIHASH 2
     57 #define ELF_NOTE_GODEPS    3
     58 #define ELF_NOTE_GOBUILDID 4
     59 
     60       static const char *goknowntypes[] =
     61 	{
     62 #define KNOWNSTYPE(name) [ELF_NOTE_GO##name] = #name
     63 	  KNOWNSTYPE (PKGLIST),
     64 	  KNOWNSTYPE (ABIHASH),
     65 	  KNOWNSTYPE (DEPS),
     66 	  KNOWNSTYPE (BUILDID),
     67 #undef KNOWNSTYPE
     68 	};
     69 
     70       if (strcmp (name, "Go") == 0)
     71 	{
     72 	  if (type < sizeof (goknowntypes) / sizeof (goknowntypes[0])
     73 	      && goknowntypes[type] != NULL)
     74 	    return goknowntypes[type];
     75 	  else
     76 	    {
     77 	      snprintf (buf, len, "%s: %" PRIu32, gettext ("<unknown>"), type);
     78 	      return buf;
     79 	    }
     80 	}
     81 
     82       if (strncmp (name, ELF_NOTE_GNU_BUILD_ATTRIBUTE_PREFIX,
     83 		   strlen (ELF_NOTE_GNU_BUILD_ATTRIBUTE_PREFIX)) == 0)
     84 	{
     85 	  /* GNU Build Attribute notes (ab)use the owner name to store
     86 	     most of their data.  Don't decode everything here.  Just
     87 	     the type.*/
     88 	  char *t = buf;
     89 	  const char *gba = "GNU Build Attribute";
     90 	  int w = snprintf (t, len, "%s ", gba);
     91 	  t += w;
     92 	  len -= w;
     93 	  if (type == NT_GNU_BUILD_ATTRIBUTE_OPEN)
     94 	    snprintf (t, len, "OPEN");
     95 	  else if (type == NT_GNU_BUILD_ATTRIBUTE_FUNC)
     96 	    snprintf (t, len, "FUNC");
     97 	  else
     98 	    snprintf (t, len, "%x", type);
     99 
    100 	  return buf;
    101 	}
    102 
    103       if (strcmp (name, "GNU") != 0)
    104 	{
    105 	  /* NT_VERSION is special, all data is in the name.  */
    106 	  if (descsz == 0 && type == NT_VERSION)
    107 	    return "VERSION";
    108 
    109 	  snprintf (buf, len, "%s: %" PRIu32, gettext ("<unknown>"), type);
    110 	  return buf;
    111 	}
    112 
    113       /* And finally all the "GNU" note types.  */
    114       static const char *knowntypes[] =
    115 	{
    116 #define KNOWNSTYPE(name) [NT_##name] = #name
    117 	  KNOWNSTYPE (GNU_ABI_TAG),
    118 	  KNOWNSTYPE (GNU_HWCAP),
    119 	  KNOWNSTYPE (GNU_BUILD_ID),
    120 	  KNOWNSTYPE (GNU_GOLD_VERSION),
    121 	  KNOWNSTYPE (GNU_PROPERTY_TYPE_0),
    122 	};
    123 
    124       /* Handle standard names.  */
    125       if (type < sizeof (knowntypes) / sizeof (knowntypes[0])
    126 	  && knowntypes[type] != NULL)
    127 	res = knowntypes[type];
    128       else
    129 	{
    130 	  snprintf (buf, len, "%s: %" PRIu32, gettext ("<unknown>"), type);
    131 
    132 	  res = buf;
    133 	}
    134     }
    135 
    136   return res;
    137 }
    138