NLIST(3) Library Functions Manual NLIST(3)NAME
nlist - get entries from name list
struct nlist nl;
Nlist 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. See a.out(5) for the structure declaration.
This subroutine is useful for examining the system name list kept in the file /vmunix. In this way programs can obtain system addresses
that are up to date.
SEE ALSO a.out(5)DIAGNOSTICS
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.
4th Berkeley Distribution May 15, 1985 NLIST(3)
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nlist(3UCB) SunOS/BSD Compatibility Library Functions nlist(3UCB)NAME
nlist - get entries from symbol table
/usr/ucb/cc [ flag ... ] file ...
int nlist(filename, nl);
struct nlist *nl;
nlist() examines the symbol table from the executable image whose name is pointed to by filename, and selectively extracts a list of values
and puts them in the array of nlist structures pointed to by nl. The name list pointed to by nl consists of an array of structures contain-
ing names, types and values. The n_name field of each such structure is taken to be a pointer to a character string representing a symbol
name. The list is terminated by an entry with a NULL pointer (or a pointer to a NULL string) in the n_name field. For each entry in nl, if
the named symbol is present in the executable image's symbol table, its value and type are placed in the n_value and n_type fields. If a
symbol cannot be located, the corresponding n_type field of nl is set to zero.
Upon normal completion, nlist() returns the number of symbols that were not located in the symbol table. If an error occurs, nlist()
returns -1 and sets all of the n_type fields in members of the array pointed to by nl to zero.
SEE ALSO nlist(3ELF), a.out(4)NOTES
Use of these interfaces should be restricted to only applications written on BSD platforms. Use of these interfaces with any of the system
libraries or in multi-thread applications is unsupported.
Only the n_value field is compatibly set. Other fields in the nlist structure are filled with the ELF (Executable and Linking Format)
values (see nlist(3ELF) and a.out(4)).
SunOS 5.10 3 May 1994 nlist(3UCB)
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