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nlist(3)
NAME
  nlist - Gets entries from name list.

SYNOPSIS
  #include <nlist.h>

  nlist(filename, nl)
  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; nlist may 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.




RELATED INFORMATION
  getsysinfo(2), knlist(3), a.out(4)

Index for Section 3

Alphabetical listing for N

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