nlist(3) [osf1 man page]
nlist(3) Library Functions Manual 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) delim off nlist(3)
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kvm_nlist(3KVM) Kernel VM Library Functions kvm_nlist(3KVM) NAME
kvm_nlist - get entries from kernel symbol table SYNOPSIS
cc [ flag... ] file... -lkvm [ library...] #include <kvm.h> #include <nlist.h> int kvm_nlist(kvm_t *kd, struct nlist *nl); DESCRIPTION
The kvm_nlist() function examines the symbol table from the kernel image identified by kd (see kvm_open(3KVM)) 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 containing names, types and values. The n_name field of each such structure is taken to be a pointer to a character string rep- resenting 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 kernel 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 0. RETURN VALUES
The kvm_nlist() functions returns the value of nlist(3UCB) or nlist(3ELF), depending on the library used. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Stable | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO
kvm_open(3KVM), kvm_kread(3KVM), nlist(3ELF), nlist(3UCB), attributes(5) NOTES
Although the libkvm API is Stable, the symbol names and data values that can be accessed through this set of interfaces are Private and are subject to ongoing change. SunOS 5.10 2 May 2002 kvm_nlist(3KVM)