text: /* Print contents of object file note.
     Copyright (C) 2002, 2007, 2009, 2011 Red Hat, Inc.
     This file is part of elfutils.
     Written by Ulrich Drepper <drepper@redhat.com>, 2002.
  
     This file is free software; you can redistribute it and/or modify
     it under the terms of either
  
       * the GNU Lesser General Public License as published by the Free
         Software Foundation; either version 3 of the License, or (at
         your option) any later version
  
     or
  
       * the GNU General Public License as published by the Free
         Software Foundation; either version 2 of the License, or (at
         your option) any later version
  
     or both in parallel, as here.
  
     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 copies of the GNU General Public License and
     the GNU Lesser General Public License along with this program.  If
     not, see <http://www.gnu.org/licenses/>.  */
  
  #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;
        }
  }
  