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nlist(3)
NAME
  nlist - gets entries from name list

SYNOPSIS
  #include <nlist.h>

  nlist(
	  char *filename,
	  struct nlist [nl] );

  cc ... -lmld

DESCRIPTION
				     NOTE

       The nlist() subroutine has moved from the standard C library to the
       libmld.a library due to the difference in the object file format.
       Programs that need to use nlist() must be linked with the -lmld flag.

  The nlist() subroutine examines the name list in the given executable
  output file and selectively extracts a list of values.  The name list
  consists of an array of structures containing names, types, and values. The
  list is terminated with a null name.

  Each name is looked up in the name list of the file. If the name is found,
  the type and value of the name are inserted in the next two fields.  If the
  name is not found, both entries are set to 0.

  For BSD compatibility, the nlist() subroutine allows symbol names to be
  preceded by an underscore. If it does not find a symbol that matches the
  name as specified, nlist() attempts to locate the symbol name with the
  leading underscore removed.

  For the structure declaration, see /usr/include/nlist.h.

  To obtain up-to-date system addresses from the system name list kept in the
  file /vmunix, use the knlist() subroutine. Alternatively, use the
  getsysinfo() function to obtain the name of the file from which the kernel
  was booted, prepend a slash character (/) to this name, and supply the
  prepended name to the nlist() subroutine. Do not specify /vmunix as the
  filename to the nlist() subroutine because it may cause nlist() to return
  invalid symbol addresses.

ERRORS
  If the file cannot be found or if it is not a valid namelist, -1 is
  returned; otherwise, the number of unfound namelist entries is returned.

  The type entry is set to 0 if the symbol is not found.

SEE ALSO
  getsysinfo(2), knlist(3), a.out(4)

Index for Section 3

Alphabetical listing for N

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