• NAME
  
  get_kernel_syms - retrieve exported kernel and module symbols
• SYNOPSIS
  

  
   #include <linux/module.h>
  
   int get_kernel_syms(struct kernel_sym * table );
  

• DESCRIPTION
  
  If
  table
  is NULL,
  get_kernel_syms ()
  returns the number of symbols available for query.
  Otherwise it fills in a table of structures:
  
  
  
  

  
  struct kernel_sym {
      unsigned long value;
      char          name[60];
  };
  

  
  
  The symbols are interspersed with magic symbols of the form # module-name with the kernel having an empty name. The value associated with a symbol of this form is the address at which the module is loaded.
  
  The symbols exported from each module follow their magic module tag and the modules are returned in the reverse of the order in which they were loaded.
• RETURN VALUE
  
  On success, returns the number of symbols copied to table . On error, -1 is returned and errno is set appropriately.
• ERRORS
  
  There is only one possible error return:

  ENOSYS

  get_kernel_syms () is not supported in this version of the kernel.

• VERSIONS
  
  This system call is only present on Linux up until kernel 2.4; it was removed in Linux 2.6.
• CONFORMING TO
  
  get_kernel_syms () is Linux-specific.
• BUGS
  
  There is no way to indicate the size of the buffer allocated for table . If symbols have been added to the kernel since the program queried for the symbol table size, memory will be corrupted.
  
  The length of exported symbol names is limited to 59 characters.
  
  Because of these limitations, this system call is deprecated in favor of query_module(2) (which is itself nowadays deprecated in favor of other interfaces described on its manual page).
• SEE ALSO
  
  create_module(2) , delete_module(2) , init_module(2) , query_module(2)
• COLOPHON
  
  This page is part of release 3.19 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.

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