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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1998-1999 by Sun Microsystems, Inc.
* All rights reserved.
*/
#include <sys/mdb_modapi.h>
#include <sys/sysinfo.h>
/*
* simple_echo dcmd - Demonstrate some simple argument processing by iterating
* through the argument array and printing back each argument.
*/
static int
simple_echo(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
if (flags & DCMD_ADDRSPEC)
mdb_printf("You specified address %p\n", addr);
else
mdb_printf("Current address is %p\n", addr);
while (argc-- != 0) {
if (argv->a_type == MDB_TYPE_STRING)
mdb_printf("%s ", argv->a_un.a_str);
else
mdb_printf("%llr ", argv->a_un.a_val);
argv++;
}
mdb_printf("\n");
return (DCMD_OK);
}
/*
* vminfo dcmd - Print out the global vminfo structure, nicely formatted.
* This function illustrates one of the functions for reading data from
* the target program (or core file): mdb_readvar(). The vminfo_t
* structure contains cumulative counters for various system virtual
* memory statistics. Each second, these are incremented by the current
* values of freemem and the other corresponding statistical counters.
*/
/*ARGSUSED*/
static int
vminfo(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
vminfo_t vm;
if ((flags & DCMD_ADDRSPEC) || argc != 0)
return (DCMD_USAGE);
if (mdb_readvar(&vm, "vminfo") == -1) {
/*
* If the mdb_warn string does not end in a \n, mdb will
* automatically append the reason for the failure.
*/
mdb_warn("failed to read vminfo structure");
return (DCMD_ERR);
}
mdb_printf("Cumulative memory statistics:\n");
mdb_printf("%8llu pages of free memory\n", vm.freemem);
mdb_printf("%8llu pages of reserved swap\n", vm.swap_resv);
mdb_printf("%8llu pages of allocated swap\n", vm.swap_alloc);
mdb_printf("%8llu pages of unreserved swap\n", vm.swap_avail);
mdb_printf("%8llu pages of unallocated swap\n", vm.swap_free);
return (DCMD_OK);
}
/*
* MDB module linkage information:
*
* We declare a list of structures describing our dcmds, and a function
* named _mdb_init to return a pointer to our module information.
*/
static const mdb_dcmd_t dcmds[] = {
{ "simple_echo", "[ args ... ]", "echo back arguments", simple_echo },
{ "vminfo", NULL, "print vm information", vminfo },
{ NULL }
};
static const mdb_modinfo_t modinfo = {
MDB_API_VERSION, dcmds, NULL
};
const mdb_modinfo_t *
_mdb_init(void)
{
return (&modinfo);
}
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