1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * String conversion routine for hardware capabilities types. 29 */ 30 #include <strings.h> 31 #include <stdio.h> 32 #include <_machelf.h> 33 #include <elfcap.h> 34 #include "cap_msg.h" 35 #include "_conv.h" 36 37 static int 38 conv_cap_1(Xword val, char *str, size_t len, Half mach, 39 Conv_fmt_flags_t fmt_flags, elfcap_to_str_func_t *fptr) 40 { 41 size_t _len; 42 int do_bkt = (fmt_flags & CONV_FMT_NOBKT) == 0; 43 44 /* 45 * Note that for the purposes of this routine, I consider 46 * CONV_FMT_NOBKT to mean no brackets, or anything that 47 * is placed outside of them. We also drop the hex version 48 * of the flags that are put in front of the opening bracket. 49 */ 50 if (do_bkt) { 51 _len = sprintf(str, MSG_ORIG(MSG_GBL_OSQBRKT), EC_XWORD(val)); 52 53 len -= _len; 54 str += _len; 55 } 56 57 if ((*fptr)(ELFCAP_STYLE_UC, val, str, len, ELFCAP_FMT_SNGSPACE, 58 mach) != 0) 59 return (0); 60 61 if (do_bkt) { 62 _len = strlen(str); 63 if ((len - _len) >= MSG_GBL_CSQBRKT_SIZE) { 64 str += _len; 65 (void) strcpy(str, MSG_ORIG(MSG_GBL_CSQBRKT)); 66 } 67 } 68 return (1); 69 } 70 71 const char * 72 conv_cap_val_hw1(Xword val, Half mach, Conv_fmt_flags_t fmt_flags, 73 Conv_cap_val_hw1_buf_t *cap_val_hw1_buf) 74 { 75 if (val == 0) 76 return (MSG_ORIG(MSG_GBL_ZERO)); 77 78 if (conv_cap_1(val, cap_val_hw1_buf->buf, sizeof (cap_val_hw1_buf->buf), 79 mach, fmt_flags, elfcap_hw1_to_str) == 0) 80 return (conv_invalid_val(&cap_val_hw1_buf->inv_buf, val, 0)); 81 return ((const char *)cap_val_hw1_buf->buf); 82 } 83 84 const char * 85 conv_cap_val_sf1(Xword val, Half mach, Conv_fmt_flags_t fmt_flags, 86 Conv_cap_val_sf1_buf_t *cap_val_sf1_buf) 87 { 88 if (val == 0) 89 return (MSG_ORIG(MSG_GBL_ZERO)); 90 91 if (conv_cap_1(val, cap_val_sf1_buf->buf, sizeof (cap_val_sf1_buf->buf), 92 mach, fmt_flags, elfcap_sf1_to_str) == 0) 93 return (conv_invalid_val(&cap_val_sf1_buf->inv_buf, val, 0)); 94 return ((const char *)cap_val_sf1_buf->buf); 95 } 96 97 const char * 98 conv_cap_tag(Xword tag, Conv_fmt_flags_t fmt_flags, Conv_inv_buf_t *inv_buf) 99 { 100 #ifdef _ELF64 101 /* 102 * Valid tags all fit in 32-bits, so a value larger than that 103 * is garbage. conv_map_ds() sees 32-bit values, so test for garbage 104 * here before passing it on. 105 * 106 * Since there are no valid tags with a value > 32-bits, there 107 * is no reason to expend effort decoding the low order bits. 108 */ 109 if (tag & 0xffffffff00000000) 110 return (conv_invalid_val(inv_buf, tag, fmt_flags)); 111 #endif 112 113 return (conv_map_ds(ELFOSABI_NONE, EM_NONE, tag, 114 conv_cap_tag_strings(fmt_flags), fmt_flags, inv_buf)); 115 } 116 117 const char * 118 conv_cap_val(Xword tag, Xword val, Half mach, Conv_cap_val_buf_t *cap_val_buf) 119 { 120 if (tag == CA_SUNW_HW_1) 121 return (conv_cap_val_hw1(val, mach, 0, 122 &cap_val_buf->cap_val_hw1_buf)); 123 else if (tag == CA_SUNW_SF_1) 124 return (conv_cap_val_sf1(val, mach, 0, 125 &cap_val_buf->cap_val_sf1_buf)); 126 else 127 return (conv_invalid_val(&cap_val_buf->inv_buf, val, 0)); 128 } 129