_dl_bind_not = envline[9] != '\0';
GL(dl_bind_not) = envline[9] != '\0';
process_envvars (enum mode *modep){  char **runp = _environ;  char *envline;  enum mode mode = normal;  char *debug_output = NULL;  /* This is the default place for profiling data file.  */  _dl_profile_output = &"/var/tmp\0/var/profile"[__libc_enable_secure ? 9 : 0];  while ((envline = _dl_next_ld_env_entry (&runp)) != NULL)    {      size_t len = strcspn (envline, "=");      if (envline[len] != '=')	/* This is a "LD_" variable at the end of the string without	   a '=' character.  Ignore it since otherwise we will access	   invalid memory below.  */	continue;      switch (len)	{	case 4:	  /* Warning level, verbose or not.  */	  if (memcmp (envline, "WARN", 4) == 0)	    _dl_verbose = envline[5] != '\0';	  break;	case 5:	  /* Debugging of the dynamic linker?  */	  if (memcmp (envline, "DEBUG", 5) == 0)	    process_dl_debug (&envline[6]);	  break;	case 7:	  /* Print information about versions.  */	  if (memcmp (envline, "VERBOSE", 7) == 0)	    {	      version_info = envline[8] != '\0';	      break;	    }	  /* List of objects to be preloaded.  */	  if (memcmp (envline, "PRELOAD", 7) == 0)	    {	      preloadlist = &envline[8];	      break;	    }	  /* Which shared object shall be profiled.  */	  if (memcmp (envline, "PROFILE", 7) == 0 && envline[8] != '\0')	    _dl_profile = &envline[8];	  break;	case 8:	  /* Do we bind early?  */	  if (memcmp (envline, "BIND_NOW", 8) == 0)	    {	      _dl_lazy = envline[9] == '\0';	      break;	    }	  if (memcmp (envline, "BIND_NOT", 8) == 0)	    _dl_bind_not = envline[9] != '\0';	  break;	case 9:	  /* Test whether we want to see the content of the auxiliary	     array passed up from the kernel.  */	  if (memcmp (envline, "SHOW_AUXV", 9) == 0)	    _dl_show_auxv ();	  break;	case 10:	  /* Mask for the important hardware capabilities.  */	  if (memcmp (envline, "HWCAP_MASK", 10) == 0)	    _dl_hwcap_mask = __strtoul_internal (&envline[11], NULL, 0, 0);	  break;	case 11:	  /* Path where the binary is found.  */	  if (!__libc_enable_secure	      && memcmp (envline, "ORIGIN_PATH", 11) == 0)	    _dl_origin_path = &envline[12];	  break;	case 12:	  /* The library search path.  */	  if (memcmp (envline, "LIBRARY_PATH", 12) == 0)	    {	      library_path = &envline[13];	      break;	    }	  /* Where to place the profiling data file.  */	  if (memcmp (envline, "DEBUG_OUTPUT", 12) == 0)	    {	      debug_output = &envline[13];	      break;	    }	  if (memcmp (envline, "DYNAMIC_WEAK", 12) == 0)	    _dl_dynamic_weak = 1;	  break;	case 14:	  /* Where to place the profiling data file.  */	  if (!__libc_enable_secure	      && memcmp (envline, "PROFILE_OUTPUT", 14) == 0	      && envline[15] != '\0')	    _dl_profile_output = &envline[15];	  break;	case 16:	  /* The mode of the dynamic linker can be set.  */	  if (memcmp (envline, "TRACE_PRELINKING", 16) == 0)	    {	      mode = trace;	      _dl_verbose = 1;	      _dl_debug_mask |= DL_DEBUG_PRELINK;	      _dl_trace_prelink = &envline[17];	    }	  break;	case 20:	  /* The mode of the dynamic linker can be set.  */	  if (memcmp (envline, "TRACE_LOADED_OBJECTS", 20) == 0)	    mode = trace;	  break;	  /* We might have some extra environment variable to handle.  This	     is tricky due to the pre-processing of the length of the name	     in the switch statement here.  The code here assumes that added	     environment variables have a different length.  */#ifdef EXTRA_LD_ENVVARS	  EXTRA_LD_ENVVARS#endif	}    }  /* The caller wants this information.  */  *modep = mode;  /* Extra security for SUID binaries.  Remove all dangerous environment     variables.  */  if (__builtin_expect (__libc_enable_secure, 0))    {      static const char unsecure_envvars[] =#ifdef EXTRA_UNSECURE_ENVVARS	EXTRA_UNSECURE_ENVVARS#endif	UNSECURE_ENVVARS;      const char *nextp;      nextp = unsecure_envvars;      do	{	  unsetenv (nextp);	  nextp = (char *) rawmemchr (nextp, '\0') + 1;	}      while (*nextp != '\0');      if (__access ("/etc/suid-debug", F_OK) != 0)	unsetenv ("MALLOC_CHECK_");    }  /* If we have to run the dynamic linker in debugging mode and the     LD_DEBUG_OUTPUT environment variable is given, we write the debug     messages to this file.  */  else if (any_debug && debug_output != NULL)    {#ifdef O_NOFOLLOW      const int flags = O_WRONLY | O_APPEND | O_CREAT | O_NOFOLLOW;#else      const int flags = O_WRONLY | O_APPEND | O_CREAT;#endif      size_t name_len = strlen (debug_output);      char buf[name_len + 12];      char *startp;      buf[name_len + 11] = '\0';      startp = _itoa_word (__getpid (), &buf[name_len + 11], 10, 0);      *--startp = '.';      startp = memcpy (startp - name_len, debug_output, name_len);      _dl_debug_fd = __open (startp, flags, DEFFILEMODE);      if (_dl_debug_fd == -1)	/* We use standard output if opening the file failed.  */	_dl_debug_fd = STDOUT_FILENO;    }}