1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2019 Joyent, Inc. 14 */ 15 16 #include <mdb/mdb_modapi.h> 17 #include <mdb/mdb_ks.h> 18 #include <sys/refstr.h> 19 20 #define REFSTR_LEN (1024) 21 22 int 23 cmd_refstr(uintptr_t addr, uint_t flags __unused, 24 int argc, const mdb_arg_t *argv) 25 { 26 if (!(flags & DCMD_ADDRSPEC)) { 27 mdb_warn("address is required\n"); 28 return (DCMD_ERR); 29 } 30 31 if (mdb_getopts(argc, argv, NULL) != argc) 32 return (DCMD_USAGE); 33 34 char *buf = mdb_alloc(REFSTR_LEN, UM_SLEEP | UM_GC); 35 36 if (mdb_read_refstr(addr, buf, REFSTR_LEN) < 0) { 37 mdb_warn("couldn't read refstr from %p", addr); 38 return (DCMD_ERR); 39 } 40 41 mdb_printf("%s\n", buf); 42 return (DCMD_OK); 43 } 44