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authorrgrimes <rgrimes@FreeBSD.org>1994-05-27 05:00:24 +0000
committerrgrimes <rgrimes@FreeBSD.org>1994-05-27 05:00:24 +0000
commitbe22b15ae2ff8d7fe06b6e14fddf0c5b444a95da (patch)
treea18a706dffa5baf86a3b12bbfb4f81caa097f349 /lib/libkvm/kvm_nlist.3
parent2a27bd86e6002c871e3b5561a5334653bb222a77 (diff)
downloadFreeBSD-src-be22b15ae2ff8d7fe06b6e14fddf0c5b444a95da.zip
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BSD 4.4 Lite Lib Sources
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+.\" Copyright (c) 1992, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" This code is derived from software developed by the Computer Systems
+.\" Engineering group at Lawrence Berkeley Laboratory under DARPA contract
+.\" BG 91-66 and contributed to Berkeley.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)kvm_nlist.3 8.1 (Berkeley) 6/4/93
+.\"
+.Dd June 4, 1993
+.Dt KVM_NLIST 3
+.Os
+.Sh NAME
+.Nm kvm_nlist
+.Nd retrieve symbol table names from a kernel image
+.Sh SYNOPSIS
+.Fd #include <kvm.h>
+.Fd #include <nlist.h>
+.Ft int
+.Fn kvm_nlist "kvm_t *kd" "struct nlist *nl"
+.Sh DESCRIPTION
+.Fn kvm_nlist
+retrieves the symbol table entries indicated by the name list argument
+.Fa \&nl .
+This argument points to an array of nlist structures, terminated by
+an entry whose n_name field is
+.Dv NULL
+(see
+.Xr nlist 3 ) .
+Each symbol is looked up using the n_name field, and if found, the
+corresponding n_type and n_value fields are filled in. These fields are set
+to 0 if the symbol is not found.
+.Pp
+The program
+.Xr kvm_mkdb 8
+builds a database from the running kernel's namelist.
+If the database matches the opened kernel,
+.Fn kvm_nlist
+uses it to speed lookups.
+.Sh RETURN VALUES
+The
+.Fn kvm_nlist
+function returns the number of invalid entries found.
+If the kernel symbol table was unreadable, -1 is returned.
+.Sh FILES
+.Bl -tag -width /var/db/kvm_vmunix.db -compact
+.It Pa /var/db/kvm_vmunix.db
+.El
+.Sh SEE ALSO
+.Xr kvm 3 ,
+.Xr kvm_close 3 ,
+.Xr kvm_getargv 3 ,
+.Xr kvm_getenvv 3 ,
+.Xr kvm_geterr 3 ,
+.Xr kvm_getprocs 3 ,
+.Xr kvm_open 3 ,
+.Xr kvm_openfiles 3 ,
+.Xr kvm_read 3 ,
+.Xr kvm_write 3 ,
+.Xr kvm_mkdb 8
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