0
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1 /*
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2 * CDDL HEADER START
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3 *
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4 * The contents of this file are subject to the terms of the
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5 * Common Development and Distribution License (the "License").
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6 * You may not use this file except in compliance with the License.
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7 *
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8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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9 * or http://www.opensolaris.org/os/licensing.
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10 * See the License for the specific language governing permissions
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11 * and limitations under the License.
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12 *
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13 * When distributing Covered Code, include this CDDL HEADER in each
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14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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15 * If applicable, add the following below this CDDL HEADER, with the
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16 * fields enclosed by brackets "[]" replaced with your own identifying
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17 * information: Portions Copyright [yyyy] [name of copyright owner]
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18 *
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19 * CDDL HEADER END
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20 */
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21 /*
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22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
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23 * Use is subject to license terms.
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24 */
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25
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26 #pragma ident "@(#)mdb_print.c 1.28 06/11/29 SMI"
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27
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28 #include <mdb/mdb_modapi.h>
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29 #include <mdb/mdb_target.h>
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30 #include <mdb/mdb_argvec.h>
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31 #include <mdb/mdb_string.h>
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32 #include <mdb/mdb_stdlib.h>
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33 #include <mdb/mdb_err.h>
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34 #include <mdb/mdb_debug.h>
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35 #include <mdb/mdb_fmt.h>
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36 #include <mdb/mdb_ctf.h>
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37 #include <mdb/mdb_ctf_impl.h>
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38 #include <mdb/mdb.h>
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39
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40 #include <sys/isa_defs.h>
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41 #include <sys/param.h>
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42 #include <sys/sysmacros.h>
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43 #include <strings.h>
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44 #include <libctf.h>
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45 #include <ctype.h>
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46
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47 typedef struct holeinfo {
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48 ulong_t hi_offset; /* expected offset */
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49 uchar_t hi_isunion; /* represents a union */
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50 } holeinfo_t;
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51
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52 typedef struct printarg {
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53 mdb_tgt_t *pa_tgt; /* current target */
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54 mdb_tgt_t *pa_realtgt; /* real target (for -i) */
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55 mdb_tgt_t *pa_immtgt; /* immediate target (for -i) */
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56 mdb_tgt_as_t pa_as; /* address space to use for i/o */
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57 mdb_tgt_addr_t pa_addr; /* base address for i/o */
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58 ulong_t pa_armemlim; /* limit on array elements to print */
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59 ulong_t pa_arstrlim; /* limit on array chars to print */
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60 const char *pa_delim; /* element delimiter string */
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61 const char *pa_prefix; /* element prefix string */
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62 const char *pa_suffix; /* element suffix string */
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63 holeinfo_t *pa_holes; /* hole detection information */
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64 int pa_nholes; /* size of holes array */
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65 int pa_flags; /* formatting flags (see below) */
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66 int pa_depth; /* previous depth */
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67 int pa_nest; /* array nesting depth */
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68 int pa_tab; /* tabstop width */
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69 uint_t pa_maxdepth; /* Limit max depth */
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70 } printarg_t;
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71
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72 #define PA_SHOWTYPE 0x001 /* print type name */
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73 #define PA_SHOWNAME 0x002 /* print member name */
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74 #define PA_SHOWADDR 0x004 /* print address */
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75 #define PA_SHOWVAL 0x008 /* print value */
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76 #define PA_SHOWHOLES 0x010 /* print holes in structs */
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77 #define PA_INTHEX 0x020 /* print integer values in hex */
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78 #define PA_INTDEC 0x040 /* print integer values in decimal */
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79 #define PA_NOSYMBOLIC 0x080 /* don't print ptrs as func+offset */
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80
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81 #define IS_CHAR(e) \
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82 (((e).cte_format & (CTF_INT_CHAR | CTF_INT_SIGNED)) == \
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83 (CTF_INT_CHAR | CTF_INT_SIGNED) && (e).cte_bits == NBBY)
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84
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85 #define SCALAR_MASK ((1 << CTF_K_INTEGER) | (1 << CTF_K_FLOAT) | \
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86 (1 << CTF_K_POINTER) | (1 << CTF_K_ENUM) | \
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87 (1 << CTF_K_ARRAY))
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88 #define IS_SCALAR(k) (((1 << k) & SCALAR_MASK) != 0)
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89
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90 #define COMPOSITE_MASK ((1 << CTF_K_STRUCT) | \
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91 (1 << CTF_K_UNION) | (1 << CTF_K_ARRAY))
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92 #define IS_COMPOSITE(k) (((1 << k) & COMPOSITE_MASK) != 0)
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93
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94 #define SOU_MASK ((1 << CTF_K_STRUCT) | (1 << CTF_K_UNION))
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95 #define IS_SOU(k) (((1 << k) & SOU_MASK) != 0)
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96
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97 #define MEMBER_DELIM_ERR -1
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98 #define MEMBER_DELIM_DONE 0
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99 #define MEMBER_DELIM_PTR 1
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100 #define MEMBER_DELIM_DOT 2
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101 #define MEMBER_DELIM_LBR 3
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102
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103 typedef int printarg_f(const char *, const char *,
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104 mdb_ctf_id_t, mdb_ctf_id_t, ulong_t, printarg_t *);
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105
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106 static int elt_print(const char *, mdb_ctf_id_t, ulong_t, int, void *);
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107 static void print_close_sou(printarg_t *, int);
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108
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109 /*
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110 * Given an address, look up the symbol ID of the specified symbol in its
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111 * containing module. We only support lookups for exact matches.
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112 */
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113 static const char *
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114 addr_to_sym(mdb_tgt_t *t, uintptr_t addr, char *name, size_t namelen,
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115 GElf_Sym *symp, mdb_syminfo_t *sip)
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116 {
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117 const mdb_map_t *mp;
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118 const char *p;
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119
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120 if (mdb_tgt_lookup_by_addr(t, addr, MDB_TGT_SYM_EXACT, name,
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121 namelen, NULL, NULL) == -1)
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122 return (NULL); /* address does not exactly match a symbol */
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123
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124 if ((p = strrsplit(name, '`')) != NULL) {
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125 if (mdb_tgt_lookup_by_name(t, name, p, symp, sip) == -1)
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126 return (NULL);
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127 return (p);
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128 }
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129
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130 if ((mp = mdb_tgt_addr_to_map(t, addr)) == NULL)
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131 return (NULL); /* address does not fall within a mapping */
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132
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133 if (mdb_tgt_lookup_by_name(t, mp->map_name, name, symp, sip) == -1)
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134 return (NULL);
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135
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136 return (name);
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137 }
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138
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139 /*
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140 * This lets dcmds be a little fancy with their processing of type arguments
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141 * while still treating them more or less as a single argument.
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142 * For example, if a command is invokes like this:
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143 *
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144 * ::<dcmd> proc_t ...
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145 *
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146 * this function will just copy "proc_t" into the provided buffer. If the
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147 * command is instead invoked like this:
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148 *
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149 * ::<dcmd> struct proc ...
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150 *
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151 * this function will place the string "struct proc" into the provided buffer
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152 * and increment the caller's argv and argc. This allows the caller to still
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153 * treat the type argument logically as it would an other atomic argument.
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154 */
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155 int
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156 args_to_typename(int *argcp, const mdb_arg_t **argvp, char *buf, size_t len)
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157 {
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158 int argc = *argcp;
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159 const mdb_arg_t *argv = *argvp;
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160
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161 if (argc < 1 || argv->a_type != MDB_TYPE_STRING)
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162 return (DCMD_USAGE);
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163
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164 if (strcmp(argv->a_un.a_str, "struct") == 0 ||
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165 strcmp(argv->a_un.a_str, "enum") == 0 ||
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166 strcmp(argv->a_un.a_str, "union") == 0) {
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167 if (argc <= 1) {
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168 mdb_warn("%s is not a valid type\n", argv->a_un.a_str);
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169 return (DCMD_ABORT);
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170 }
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171
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172 if (argv[1].a_type != MDB_TYPE_STRING)
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173 return (DCMD_USAGE);
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174
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175 (void) mdb_snprintf(buf, len, "%s %s",
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176 argv[0].a_un.a_str, argv[1].a_un.a_str);
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177
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178 *argcp = argc - 1;
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179 *argvp = argv + 1;
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180 } else {
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181 (void) mdb_snprintf(buf, len, "%s", argv[0].a_un.a_str);
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182 }
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183
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184 return (0);
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185 }
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186
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187 /*ARGSUSED*/
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188 int
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189 cmd_sizeof(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
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190 {
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191 mdb_ctf_id_t id;
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192 char tn[MDB_SYM_NAMLEN];
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193 int ret;
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194
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195 if (flags & DCMD_ADDRSPEC)
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196 return (DCMD_USAGE);
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197
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198 if ((ret = args_to_typename(&argc, &argv, tn, sizeof (tn))) != 0)
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199 return (ret);
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200
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201 if (argc != 1)
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202 return (DCMD_USAGE);
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203
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204 if (mdb_ctf_lookup_by_name(tn, &id) != 0) {
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205 mdb_warn("failed to look up type %s", tn);
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206 return (DCMD_ERR);
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207 }
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208
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209 if (flags & DCMD_PIPE_OUT)
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210 mdb_printf("%#lr\n", mdb_ctf_type_size(id));
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211 else
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212 mdb_printf("sizeof (%s) = %#lr\n", tn, mdb_ctf_type_size(id));
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213
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214 return (DCMD_OK);
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215 }
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216
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217 /*ARGSUSED*/
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218 int
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219 cmd_offsetof(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
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220 {
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221 const char *member;
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222 mdb_ctf_id_t id;
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223 ulong_t off;
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224 char tn[MDB_SYM_NAMLEN];
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225 int ret;
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226
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227 if (flags & DCMD_ADDRSPEC)
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228 return (DCMD_USAGE);
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229
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230 if ((ret = args_to_typename(&argc, &argv, tn, sizeof (tn))) != 0)
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231 return (ret);
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232
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233 if (argc != 2 || argv[1].a_type != MDB_TYPE_STRING)
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234 return (DCMD_USAGE);
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235
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236 if (mdb_ctf_lookup_by_name(tn, &id) != 0) {
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237 mdb_warn("failed to look up type %s", tn);
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238 return (DCMD_ERR);
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239 }
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240
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241 member = argv[1].a_un.a_str;
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242
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243 if (mdb_ctf_offsetof(id, member, &off) != 0) {
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244 mdb_warn("failed to find member %s of type %s", member, tn);
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245 return (DCMD_ERR);
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246 }
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247
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248 if (off % NBBY == 0)
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249 mdb_printf("offsetof (%s, %s) = %#lr\n",
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250 tn, member, off / NBBY);
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251 else
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252 mdb_printf("offsetof (%s, %s) = %#lr bits\n",
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253 tn, member, off);
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254
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255 return (DCMD_OK);
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256 }
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257
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258 struct enum_cbinfo {
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259 uint_t e_flags;
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260 const char *e_string; /* NULL for value searches */
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261 int e_value;
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262 uint_t e_found;
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263 };
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264 #define E_PRETTY 0x1
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265 #define E_HEX 0x2
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266 #define E_SEARCH_STRING 0x4
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267 #define E_SEARCH_VALUE 0x8
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268
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269 static int
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270 enum_cb(const char *name, int value, void *arg)
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271 {
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272 struct enum_cbinfo *info = arg;
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273 uint_t flags = info->e_flags;
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274
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275 if (flags & E_SEARCH_STRING) {
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276 if (strcmp(name, info->e_string) != 0)
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277 return (0);
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278
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279 } else if (flags & E_SEARCH_VALUE) {
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280 if (value != info->e_value)
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281 return (0);
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282 }
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283
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284 if (flags & E_PRETTY) {
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285 if (flags & E_HEX)
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286 mdb_printf("%-8x %s\n", value, name);
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287 else
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288 mdb_printf("%-11d %s\n", value, name);
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289 } else {
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290 mdb_printf("%#r\n", value);
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291 }
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292
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293 info->e_found = 1;
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294 return (0);
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295 }
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296
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297 /*ARGSUSED*/
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298 int
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299 cmd_enum(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
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300 {
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301 struct enum_cbinfo info;
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302
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303 const char *type; /* type name we are using */
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304 char tn[MDB_SYM_NAMLEN];
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305 char tn2[MDB_SYM_NAMLEN + sizeof ("enum ")];
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306 mdb_ctf_id_t id;
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307 mdb_ctf_id_t idr;
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308
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309 int i;
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310 intmax_t search;
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311
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312 info.e_flags = (flags & DCMD_PIPE_OUT)? 0 : E_PRETTY;
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313 info.e_string = NULL;
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314 info.e_value = 0;
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315 info.e_found = 0;
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316
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317 i = mdb_getopts(argc, argv,
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318 'x', MDB_OPT_SETBITS, E_HEX, &info.e_flags,
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319 NULL);
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320
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321 argc -= i;
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322 argv += i;
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323
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324 if ((i = args_to_typename(&argc, &argv, tn, sizeof (tn))) != 0)
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325 return (i);
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326
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327 type = NULL;
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328 if (strchr(tn, ' ') == NULL) {
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329 /*
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330 * Check as an enumeration tag first, and fall back
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331 * to checking for a typedef. Yes, this means that
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332 * anonymous enumerations whose typedefs conflict with
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333 * an enum tag can't be accessed. Don't do that.
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334 */
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335 (void) mdb_snprintf(tn2, sizeof (tn2), "enum %s", tn);
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336
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337 if (mdb_ctf_lookup_by_name(tn2, &id) == 0) {
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338 type = tn2;
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339 } else if (mdb_ctf_lookup_by_name(tn, &id) == 0) {
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340 type = tn;
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341 } else {
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342 mdb_warn("types '%s', '%s'", tn2, tn);
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343 return (DCMD_ERR);
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344 }
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345 } else {
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346 if (mdb_ctf_lookup_by_name(tn, &id) == 0) {
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347 type = tn;
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348 } else {
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349 mdb_warn("'%s'", tn);
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350 return (DCMD_ERR);
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351 }
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352 }
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353
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354 /* resolve it, and make sure we're looking at an enumeration */
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355 if (mdb_ctf_type_resolve(id, &idr) == -1) {
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356 mdb_warn("unable to resolve '%s'", type);
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357 return (DCMD_ERR);
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358 }
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359 if (mdb_ctf_type_kind(idr) != CTF_K_ENUM) {
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360 mdb_warn("'%s': not an enumeration\n", type);
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361 return (DCMD_ERR);
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362 }
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363
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364 if (argc > 2)
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365 return (DCMD_USAGE);
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366
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367 if (argc == 2) {
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368 if (flags & DCMD_ADDRSPEC) {
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369 mdb_warn("may only specify one of: name, address\n");
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370 return (DCMD_USAGE);
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371 }
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372
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373 if (argv[1].a_type == MDB_TYPE_STRING) {
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374 info.e_flags |= E_SEARCH_STRING;
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375 info.e_string = argv[1].a_un.a_str;
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376 } else if (argv[1].a_type == MDB_TYPE_IMMEDIATE) {
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377 info.e_flags |= E_SEARCH_VALUE;
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378 search = argv[1].a_un.a_val;
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379 } else {
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380 return (DCMD_USAGE);
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381 }
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382 }
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383
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384 if (flags & DCMD_ADDRSPEC) {
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385 info.e_flags |= E_SEARCH_VALUE;
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386 search = mdb_get_dot();
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387 }
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388
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389 if (info.e_flags & E_SEARCH_VALUE) {
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390 if ((int)search != search) {
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391 mdb_warn("value '%lld' out of enumeration range\n",
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392 search);
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393 return (DCMD_ERR);
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394 }
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395 info.e_value = search;
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396 }
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397
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398 if (DCMD_HDRSPEC(flags) && (info.e_flags & E_PRETTY)) {
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399 if (info.e_flags & E_HEX)
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400 mdb_printf("%<b>%-8s %s%</b>\n", "VALUE", "NAME");
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401 else
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402 mdb_printf("%<b>%-11s %s%</b>\n", "VALUE", "NAME");
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403 }
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404
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405 if (mdb_ctf_enum_iter(idr, enum_cb, &info) == -1) {
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406 mdb_warn("cannot walk '%s' as enum", type);
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407 return (DCMD_ERR);
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408 }
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409
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410 if (info.e_found == 0 &&
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411 (info.e_flags & (E_SEARCH_STRING | E_SEARCH_VALUE)) != 0) {
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412 if (info.e_flags & E_SEARCH_STRING)
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413 mdb_warn("name \"%s\" not in '%s'\n", info.e_string,
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414 type);
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415 else
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416 mdb_warn("value %#d not in '%s'\n", info.e_value, type);
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417
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418 return (DCMD_ERR);
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419 }
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420
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421 return (DCMD_OK);
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422 }
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423
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424 static int
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425 setup_vcb(const char *name, uintptr_t addr)
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426 {
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427 const char *p;
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428 mdb_var_t *v;
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429
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430 if ((v = mdb_nv_lookup(&mdb.m_nv, name)) == NULL) {
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431 if ((p = strbadid(name)) != NULL) {
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432 mdb_warn("'%c' may not be used in a variable "
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433 "name\n", *p);
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434 return (DCMD_ABORT);
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435 }
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436
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437 if ((v = mdb_nv_insert(&mdb.m_nv, name, NULL, addr, 0)) == NULL)
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438 return (DCMD_ERR);
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439 } else {
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440 if (v->v_flags & MDB_NV_RDONLY) {
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441 mdb_warn("variable %s is read-only\n", name);
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442 return (DCMD_ABORT);
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443 }
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444 }
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|
445
|
|
446 /*
|
|
447 * If there already exists a vcb for this variable, we may be
|
|
448 * calling the dcmd in a loop. We only create a vcb for this
|
|
449 * variable on the first invocation.
|
|
450 */
|
|
451 if (mdb_vcb_find(v, mdb.m_frame) == NULL)
|
|
452 mdb_vcb_insert(mdb_vcb_create(v), mdb.m_frame);
|
|
453
|
|
454 return (0);
|
|
455 }
|
|
456
|
|
457 /*ARGSUSED*/
|
|
458 int
|
|
459 cmd_list(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
460 {
|
|
461 mdb_ctf_id_t id;
|
|
462 ulong_t offset;
|
|
463 uintptr_t a, tmp;
|
|
464 int ret;
|
|
465
|
|
466 if (!(flags & DCMD_ADDRSPEC) || argc == 0)
|
|
467 return (DCMD_USAGE);
|
|
468
|
|
469 if (argv->a_type != MDB_TYPE_STRING) {
|
|
470 /*
|
|
471 * We are being given a raw offset in lieu of a type and
|
|
472 * member; confirm the arguments.
|
|
473 */
|
|
474 if (argv->a_type != MDB_TYPE_IMMEDIATE)
|
|
475 return (DCMD_USAGE);
|
|
476
|
|
477 offset = argv->a_un.a_val;
|
|
478
|
|
479 argv++;
|
|
480 argc--;
|
|
481
|
|
482 if (offset % sizeof (uintptr_t)) {
|
|
483 mdb_warn("offset must fall on a word boundary\n");
|
|
484 return (DCMD_ABORT);
|
|
485 }
|
|
486 } else {
|
|
487 const char *member;
|
|
488 char buf[MDB_SYM_NAMLEN];
|
|
489 int ret;
|
|
490
|
|
491 ret = args_to_typename(&argc, &argv, buf, sizeof (buf));
|
|
492 if (ret != 0)
|
|
493 return (ret);
|
|
494
|
|
495 if (mdb_ctf_lookup_by_name(buf, &id) != 0) {
|
|
496 mdb_warn("failed to look up type %s", buf);
|
|
497 return (DCMD_ABORT);
|
|
498 }
|
|
499
|
|
500 argv++;
|
|
501 argc--;
|
|
502
|
|
503 if (argc < 1 || argv->a_type != MDB_TYPE_STRING)
|
|
504 return (DCMD_USAGE);
|
|
505
|
|
506 member = argv->a_un.a_str;
|
|
507
|
|
508 argv++;
|
|
509 argc--;
|
|
510
|
|
511 if (mdb_ctf_offsetof(id, member, &offset) != 0) {
|
|
512 mdb_warn("failed to find member %s of type %s",
|
|
513 member, buf);
|
|
514 return (DCMD_ABORT);
|
|
515 }
|
|
516
|
|
517 if (offset % (sizeof (uintptr_t) * NBBY) != 0) {
|
|
518 mdb_warn("%s is not a word-aligned member\n", member);
|
|
519 return (DCMD_ABORT);
|
|
520 }
|
|
521
|
|
522 offset /= NBBY;
|
|
523 }
|
|
524
|
|
525 /*
|
|
526 * If we have any unchewed arguments, a variable name must be present.
|
|
527 */
|
|
528 if (argc == 1) {
|
|
529 if (argv->a_type != MDB_TYPE_STRING)
|
|
530 return (DCMD_USAGE);
|
|
531
|
|
532 if ((ret = setup_vcb(argv->a_un.a_str, addr)) != 0)
|
|
533 return (ret);
|
|
534
|
|
535 } else if (argc != 0) {
|
|
536 return (DCMD_USAGE);
|
|
537 }
|
|
538
|
|
539 a = addr;
|
|
540
|
|
541 do {
|
|
542 mdb_printf("%lr\n", a);
|
|
543
|
|
544 if (mdb_vread(&tmp, sizeof (tmp), a + offset) == -1) {
|
|
545 mdb_warn("failed to read next pointer from object %p",
|
|
546 a);
|
|
547 return (DCMD_ERR);
|
|
548 }
|
|
549
|
|
550 a = tmp;
|
|
551 } while (a != addr && a != NULL);
|
|
552
|
|
553 return (DCMD_OK);
|
|
554 }
|
|
555
|
|
556 int
|
|
557 cmd_array(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
558 {
|
|
559 mdb_ctf_id_t id;
|
|
560 ssize_t elemsize = 0;
|
|
561 char tn[MDB_SYM_NAMLEN];
|
|
562 int ret, nelem = -1;
|
|
563
|
|
564 mdb_tgt_t *t = mdb.m_target;
|
|
565 GElf_Sym sym;
|
|
566 mdb_ctf_arinfo_t ar;
|
|
567 mdb_syminfo_t s_info;
|
|
568
|
|
569 if (!(flags & DCMD_ADDRSPEC))
|
|
570 return (DCMD_USAGE);
|
|
571
|
|
572 if (argc >= 2) {
|
|
573 ret = args_to_typename(&argc, &argv, tn, sizeof (tn));
|
|
574 if (ret != 0)
|
|
575 return (ret);
|
|
576
|
|
577 if (argc == 1) /* unquoted compound type without count */
|
|
578 return (DCMD_USAGE);
|
|
579
|
|
580 if (mdb_ctf_lookup_by_name(tn, &id) != 0) {
|
|
581 mdb_warn("failed to look up type %s", tn);
|
|
582 return (DCMD_ABORT);
|
|
583 }
|
|
584
|
|
585 if (argv[1].a_type == MDB_TYPE_IMMEDIATE)
|
|
586 nelem = argv[1].a_un.a_val;
|
|
587 else
|
|
588 nelem = mdb_strtoull(argv[1].a_un.a_str);
|
|
589
|
|
590 elemsize = mdb_ctf_type_size(id);
|
|
591 } else if (addr_to_sym(t, addr, tn, sizeof (tn), &sym, &s_info)
|
|
592 != NULL && mdb_ctf_lookup_by_symbol(&sym, &s_info, &id)
|
|
593 == 0 && mdb_ctf_type_kind(id) == CTF_K_ARRAY &&
|
|
594 mdb_ctf_array_info(id, &ar) != -1) {
|
|
595 elemsize = mdb_ctf_type_size(id) / ar.mta_nelems;
|
|
596 nelem = ar.mta_nelems;
|
|
597 } else {
|
|
598 mdb_warn("no symbol information for %a", addr);
|
|
599 return (DCMD_ERR);
|
|
600 }
|
|
601
|
|
602 if (argc == 3 || argc == 1) {
|
|
603 if (argv[argc - 1].a_type != MDB_TYPE_STRING)
|
|
604 return (DCMD_USAGE);
|
|
605
|
|
606 if ((ret = setup_vcb(argv[argc - 1].a_un.a_str, addr)) != 0)
|
|
607 return (ret);
|
|
608
|
|
609 } else if (argc > 3) {
|
|
610 return (DCMD_USAGE);
|
|
611 }
|
|
612
|
|
613 for (; nelem > 0; nelem--) {
|
|
614 mdb_printf("%lr\n", addr);
|
|
615 addr = addr + elemsize;
|
|
616 }
|
|
617
|
|
618 return (DCMD_OK);
|
|
619 }
|
|
620
|
|
621 /*
|
|
622 * Print an integer bitfield in hexadecimal by reading the enclosing byte(s)
|
|
623 * and then shifting and masking the data in the lower bits of a uint64_t.
|
|
624 */
|
|
625 static int
|
|
626 print_bitfield(ulong_t off, printarg_t *pap, ctf_encoding_t *ep)
|
|
627 {
|
|
628 mdb_tgt_addr_t addr = pap->pa_addr + off / NBBY;
|
|
629 size_t size = (ep->cte_bits + (NBBY - 1)) / NBBY;
|
|
630 uint64_t mask = (1ULL << ep->cte_bits) - 1;
|
|
631 uint64_t value = 0;
|
|
632 uint8_t *buf = (uint8_t *)&value;
|
|
633 uint8_t shift;
|
|
634
|
|
635 const char *format;
|
|
636
|
|
637 if (!(pap->pa_flags & PA_SHOWVAL))
|
|
638 return (0);
|
|
639
|
|
640 if (ep->cte_bits > sizeof (value) * NBBY - 1) {
|
|
641 mdb_printf("??? (invalid bitfield size %u)", ep->cte_bits);
|
|
642 return (0);
|
|
643 }
|
|
644
|
|
645 /*
|
|
646 * On big-endian machines, we need to adjust the buf pointer to refer
|
|
647 * to the lowest 'size' bytes in 'value', and we need shift based on
|
|
648 * the offset from the end of the data, not the offset of the start.
|
|
649 */
|
|
650 #ifdef _BIG_ENDIAN
|
|
651 buf += sizeof (value) - size;
|
|
652 off += ep->cte_bits;
|
|
653 #endif
|
|
654 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as, buf, size, addr) != size) {
|
|
655 mdb_warn("failed to read %lu bytes at %llx",
|
|
656 (ulong_t)size, addr);
|
|
657 return (1);
|
|
658 }
|
|
659
|
|
660 shift = off % NBBY;
|
|
661
|
|
662 /*
|
|
663 * Offsets are counted from opposite ends on little- and
|
|
664 * big-endian machines.
|
|
665 */
|
|
666 #ifdef _BIG_ENDIAN
|
|
667 shift = NBBY - shift;
|
|
668 #endif
|
|
669
|
|
670 /*
|
|
671 * If the bits we want do not begin on a byte boundary, shift the data
|
|
672 * right so that the value is in the lowest 'cte_bits' of 'value'.
|
|
673 */
|
|
674 if (off % NBBY != 0)
|
|
675 value >>= shift;
|
|
676 value &= mask;
|
|
677
|
|
678 /*
|
|
679 * We default to printing signed bitfields as decimals,
|
|
680 * and unsigned bitfields in hexadecimal. If they specify
|
|
681 * hexadecimal, we treat the field as unsigned.
|
|
682 */
|
|
683 if ((pap->pa_flags & PA_INTHEX) ||
|
|
684 !(ep->cte_format & CTF_INT_SIGNED)) {
|
|
685 format = (pap->pa_flags & PA_INTDEC)? "%#llu" : "%#llx";
|
|
686 } else {
|
|
687 int sshift = sizeof (value) * NBBY - ep->cte_bits;
|
|
688
|
|
689 /* sign-extend value, and print as a signed decimal */
|
|
690 value = ((int64_t)value << sshift) >> sshift;
|
|
691 format = "%#lld";
|
|
692 }
|
|
693 mdb_printf(format, value);
|
|
694
|
|
695 return (0);
|
|
696 }
|
|
697
|
|
698 /*
|
|
699 * Print out a character or integer value. We use some simple heuristics,
|
|
700 * described below, to determine the appropriate radix to use for output.
|
|
701 */
|
|
702 static int
|
|
703 print_int_val(const char *type, ctf_encoding_t *ep, ulong_t off,
|
|
704 printarg_t *pap)
|
|
705 {
|
|
706 static const char *const sformat[] = { "%#d", "%#d", "%#d", "%#lld" };
|
|
707 static const char *const uformat[] = { "%#u", "%#u", "%#u", "%#llu" };
|
|
708 static const char *const xformat[] = { "%#x", "%#x", "%#x", "%#llx" };
|
|
709
|
|
710 mdb_tgt_addr_t addr = pap->pa_addr + off / NBBY;
|
|
711 const char *const *fsp;
|
|
712 size_t size;
|
|
713
|
|
714 union {
|
|
715 uint64_t i8;
|
|
716 uint32_t i4;
|
|
717 uint16_t i2;
|
|
718 uint8_t i1;
|
|
719 time_t t;
|
|
720 } u;
|
|
721
|
|
722 if (!(pap->pa_flags & PA_SHOWVAL))
|
|
723 return (0);
|
|
724
|
|
725 if (ep->cte_format & CTF_INT_VARARGS) {
|
|
726 mdb_printf("...\n");
|
|
727 return (0);
|
|
728 }
|
|
729
|
|
730 /*
|
|
731 * If the size is not a power-of-two number of bytes in the range 1-8
|
|
732 * then we assume it is a bitfield and print it as such.
|
|
733 */
|
|
734 size = ep->cte_bits / NBBY;
|
|
735 if (size > 8 || (ep->cte_bits % NBBY) != 0 || (size & (size - 1)) != 0)
|
|
736 return (print_bitfield(off, pap, ep));
|
|
737
|
|
738 if (IS_CHAR(*ep)) {
|
|
739 mdb_printf("'");
|
|
740 if (mdb_fmt_print(pap->pa_tgt, pap->pa_as,
|
|
741 addr, 1, 'C') == addr)
|
|
742 return (1);
|
|
743 mdb_printf("'");
|
|
744 return (0);
|
|
745 }
|
|
746
|
|
747 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as, &u.i8, size, addr) != size) {
|
|
748 mdb_warn("failed to read %lu bytes at %llx",
|
|
749 (ulong_t)size, addr);
|
|
750 return (1);
|
|
751 }
|
|
752
|
|
753 /*
|
|
754 * We pretty-print time_t values as a calendar date and time.
|
|
755 */
|
|
756 if (!(pap->pa_flags & (PA_INTHEX | PA_INTDEC)) &&
|
|
757 strcmp(type, "time_t") == 0 && u.t != 0) {
|
|
758 mdb_printf("%Y", u.t);
|
|
759 return (0);
|
|
760 }
|
|
761
|
|
762 /*
|
|
763 * The default format is hexadecimal.
|
|
764 */
|
|
765 if (!(pap->pa_flags & PA_INTDEC))
|
|
766 fsp = xformat;
|
|
767 else if (ep->cte_format & CTF_INT_SIGNED)
|
|
768 fsp = sformat;
|
|
769 else
|
|
770 fsp = uformat;
|
|
771
|
|
772 switch (size) {
|
|
773 case sizeof (uint8_t):
|
|
774 mdb_printf(fsp[0], u.i1);
|
|
775 break;
|
|
776 case sizeof (uint16_t):
|
|
777 mdb_printf(fsp[1], u.i2);
|
|
778 break;
|
|
779 case sizeof (uint32_t):
|
|
780 mdb_printf(fsp[2], u.i4);
|
|
781 break;
|
|
782 case sizeof (uint64_t):
|
|
783 mdb_printf(fsp[3], u.i8);
|
|
784 break;
|
|
785 }
|
|
786 return (0);
|
|
787 }
|
|
788
|
|
789 /*ARGSUSED*/
|
|
790 static int
|
|
791 print_int(const char *type, const char *name, mdb_ctf_id_t id,
|
|
792 mdb_ctf_id_t base, ulong_t off, printarg_t *pap)
|
|
793 {
|
|
794 ctf_encoding_t e;
|
|
795
|
|
796 if (!(pap->pa_flags & PA_SHOWVAL))
|
|
797 return (0);
|
|
798
|
|
799 if (mdb_ctf_type_encoding(base, &e) != 0) {
|
|
800 mdb_printf("??? (%s)", mdb_strerror(errno));
|
|
801 return (0);
|
|
802 }
|
|
803
|
|
804 return (print_int_val(type, &e, off, pap));
|
|
805 }
|
|
806
|
|
807 /*
|
|
808 * Print out a floating point value. We only provide support for floats in
|
|
809 * the ANSI-C float, double, and long double formats.
|
|
810 */
|
|
811 /*ARGSUSED*/
|
|
812 static int
|
|
813 print_float(const char *type, const char *name, mdb_ctf_id_t id,
|
|
814 mdb_ctf_id_t base, ulong_t off, printarg_t *pap)
|
|
815 {
|
|
816 #ifndef _KMDB
|
|
817 mdb_tgt_addr_t addr = pap->pa_addr + off / NBBY;
|
|
818 ctf_encoding_t e;
|
|
819
|
|
820 union {
|
|
821 float f;
|
|
822 double d;
|
|
823 long double ld;
|
|
824 } u;
|
|
825
|
|
826 if (!(pap->pa_flags & PA_SHOWVAL))
|
|
827 return (0);
|
|
828
|
|
829 if (mdb_ctf_type_encoding(base, &e) == 0) {
|
|
830 if (e.cte_format == CTF_FP_SINGLE &&
|
|
831 e.cte_bits == sizeof (float) * NBBY) {
|
|
832 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as, &u.f,
|
|
833 sizeof (u.f), addr) != sizeof (u.f)) {
|
|
834 mdb_warn("failed to read float at %llx", addr);
|
|
835 return (1);
|
|
836 }
|
|
837 mdb_printf("%s", doubletos(u.f, 7, 'e'));
|
|
838
|
|
839 } else if (e.cte_format == CTF_FP_DOUBLE &&
|
|
840 e.cte_bits == sizeof (double) * NBBY) {
|
|
841 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as, &u.d,
|
|
842 sizeof (u.d), addr) != sizeof (u.d)) {
|
|
843 mdb_warn("failed to read float at %llx", addr);
|
|
844 return (1);
|
|
845 }
|
|
846 mdb_printf("%s", doubletos(u.d, 7, 'e'));
|
|
847
|
|
848 } else if (e.cte_format == CTF_FP_LDOUBLE &&
|
|
849 e.cte_bits == sizeof (long double) * NBBY) {
|
|
850 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as, &u.ld,
|
|
851 sizeof (u.ld), addr) != sizeof (u.ld)) {
|
|
852 mdb_warn("failed to read float at %llx", addr);
|
|
853 return (1);
|
|
854 }
|
|
855 mdb_printf("%s", longdoubletos(&u.ld, 16, 'e'));
|
|
856
|
|
857 } else {
|
|
858 mdb_printf("??? (unsupported FP format %u / %u bits\n",
|
|
859 e.cte_format, e.cte_bits);
|
|
860 }
|
|
861 } else
|
|
862 mdb_printf("??? (%s)", mdb_strerror(errno));
|
|
863 #else
|
|
864 mdb_printf("<FLOAT>");
|
|
865 #endif
|
|
866 return (0);
|
|
867 }
|
|
868
|
|
869
|
|
870 /*
|
|
871 * Print out a pointer value as a symbol name + offset or a hexadecimal value.
|
|
872 * If the pointer itself is a char *, we attempt to read a bit of the data
|
|
873 * referenced by the pointer and display it if it is a printable ASCII string.
|
|
874 */
|
|
875 /*ARGSUSED*/
|
|
876 static int
|
|
877 print_ptr(const char *type, const char *name, mdb_ctf_id_t id,
|
|
878 mdb_ctf_id_t base, ulong_t off, printarg_t *pap)
|
|
879 {
|
|
880 mdb_tgt_addr_t addr = pap->pa_addr + off / NBBY;
|
|
881 ctf_encoding_t e;
|
|
882 uintptr_t value;
|
|
883 char buf[256];
|
|
884 ssize_t len;
|
|
885
|
|
886 if (!(pap->pa_flags & PA_SHOWVAL))
|
|
887 return (0);
|
|
888
|
|
889 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as,
|
|
890 &value, sizeof (value), addr) != sizeof (value)) {
|
|
891 mdb_warn("failed to read %s pointer at %llx", name, addr);
|
|
892 return (1);
|
|
893 }
|
|
894
|
|
895 if (pap->pa_flags & PA_NOSYMBOLIC) {
|
|
896 mdb_printf("%#lx", value);
|
|
897 return (0);
|
|
898 }
|
|
899
|
|
900 mdb_printf("%a", value);
|
|
901
|
|
902 if (value == NULL || strcmp(type, "caddr_t") == 0)
|
|
903 return (0);
|
|
904
|
|
905 if (mdb_ctf_type_kind(base) == CTF_K_POINTER &&
|
|
906 mdb_ctf_type_reference(base, &base) != -1 &&
|
|
907 mdb_ctf_type_resolve(base, &base) != -1 &&
|
|
908 mdb_ctf_type_encoding(base, &e) == 0 && IS_CHAR(e)) {
|
|
909 if ((len = mdb_tgt_readstr(pap->pa_realtgt, pap->pa_as,
|
|
910 buf, sizeof (buf), value)) >= 0 && strisprint(buf)) {
|
|
911 if (len == sizeof (buf))
|
|
912 (void) strabbr(buf, sizeof (buf));
|
|
913 mdb_printf(" \"%s\"", buf);
|
|
914 }
|
|
915 }
|
|
916
|
|
917 return (0);
|
|
918 }
|
|
919
|
|
920
|
|
921 /*
|
|
922 * Print out a fixed-size array. We special-case arrays of characters
|
|
923 * and attempt to print them out as ASCII strings if possible. For other
|
|
924 * arrays, we iterate over a maximum of pa_armemlim members and call
|
|
925 * mdb_ctf_type_visit() again on each element to print its value.
|
|
926 */
|
|
927 /*ARGSUSED*/
|
|
928 static int
|
|
929 print_array(const char *type, const char *name, mdb_ctf_id_t id,
|
|
930 mdb_ctf_id_t base, ulong_t off, printarg_t *pap)
|
|
931 {
|
|
932 mdb_tgt_addr_t addr = pap->pa_addr + off / NBBY;
|
|
933 printarg_t pa = *pap;
|
|
934 ssize_t eltsize;
|
|
935 mdb_ctf_arinfo_t r;
|
|
936 ctf_encoding_t e;
|
|
937 uint_t i, kind, limit;
|
|
938 int d, sou;
|
|
939 char buf[8];
|
|
940 char *str;
|
|
941
|
|
942 if (!(pap->pa_flags & PA_SHOWVAL))
|
|
943 return (0);
|
|
944
|
|
945 if (pap->pa_depth == pap->pa_maxdepth) {
|
|
946 mdb_printf("[ ... ]");
|
|
947 return (0);
|
|
948 }
|
|
949
|
|
950 /*
|
|
951 * Determine the base type and size of the array's content. If this
|
|
952 * fails, we cannot print anything and just give up.
|
|
953 */
|
|
954 if (mdb_ctf_array_info(base, &r) == -1 ||
|
|
955 mdb_ctf_type_resolve(r.mta_contents, &base) == -1 ||
|
|
956 (eltsize = mdb_ctf_type_size(base)) == -1) {
|
|
957 mdb_printf("[ ??? ] (%s)", mdb_strerror(errno));
|
|
958 return (0);
|
|
959 }
|
|
960
|
|
961 /*
|
|
962 * Read a few bytes and determine if the content appears to be
|
|
963 * printable ASCII characters. If so, read the entire array and
|
|
964 * attempt to display it as a string if it is printable.
|
|
965 */
|
|
966 if ((pap->pa_arstrlim == MDB_ARR_NOLIMIT ||
|
|
967 r.mta_nelems <= pap->pa_arstrlim) &&
|
|
968 mdb_ctf_type_encoding(base, &e) == 0 && IS_CHAR(e) &&
|
|
969 mdb_tgt_readstr(pap->pa_tgt, pap->pa_as, buf,
|
|
970 MIN(sizeof (buf), r.mta_nelems), addr) > 0 && strisprint(buf)) {
|
|
971
|
|
972 str = mdb_alloc(r.mta_nelems + 1, UM_SLEEP | UM_GC);
|
|
973 str[r.mta_nelems] = '\0';
|
|
974
|
|
975 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as, str,
|
|
976 r.mta_nelems, addr) != r.mta_nelems) {
|
|
977 mdb_warn("failed to read char array at %llx", addr);
|
|
978 return (1);
|
|
979 }
|
|
980
|
|
981 if (strisprint(str)) {
|
|
982 mdb_printf("[ \"%s\" ]", str);
|
|
983 return (0);
|
|
984 }
|
|
985 }
|
|
986
|
|
987 if (pap->pa_armemlim != MDB_ARR_NOLIMIT)
|
|
988 limit = MIN(r.mta_nelems, pap->pa_armemlim);
|
|
989 else
|
|
990 limit = r.mta_nelems;
|
|
991
|
|
992 if (limit == 0) {
|
|
993 mdb_printf("[ ... ]");
|
|
994 return (0);
|
|
995 }
|
|
996
|
|
997 kind = mdb_ctf_type_kind(base);
|
|
998 sou = IS_COMPOSITE(kind);
|
|
999
|
|
1000 pa.pa_addr = addr; /* set base address to start of array */
|
|
1001 pa.pa_maxdepth = pa.pa_maxdepth - pa.pa_depth;
|
|
1002 pa.pa_nest += pa.pa_depth + 1; /* nesting level is current depth + 1 */
|
|
1003 pa.pa_depth = 0; /* reset depth to 0 for new scope */
|
|
1004 pa.pa_prefix = NULL;
|
|
1005
|
|
1006 if (sou) {
|
|
1007 pa.pa_delim = "\n";
|
|
1008 mdb_printf("[\n");
|
|
1009 } else {
|
|
1010 pa.pa_flags &= ~(PA_SHOWTYPE | PA_SHOWNAME | PA_SHOWADDR);
|
|
1011 pa.pa_delim = ", ";
|
|
1012 mdb_printf("[ ");
|
|
1013 }
|
|
1014
|
|
1015 for (i = 0; i < limit; i++, pa.pa_addr += eltsize) {
|
|
1016 if (i == limit - 1 && !sou) {
|
|
1017 if (limit < r.mta_nelems)
|
|
1018 pa.pa_delim = ", ... ]";
|
|
1019 else
|
|
1020 pa.pa_delim = " ]";
|
|
1021 }
|
|
1022
|
|
1023 if (mdb_ctf_type_visit(r.mta_contents, elt_print, &pa) == -1) {
|
|
1024 mdb_warn("failed to print array data");
|
|
1025 return (1);
|
|
1026 }
|
|
1027 }
|
|
1028
|
|
1029 if (sou) {
|
|
1030 for (d = pa.pa_depth - 1; d >= 0; d--)
|
|
1031 print_close_sou(&pa, d);
|
|
1032
|
|
1033 if (limit < r.mta_nelems) {
|
|
1034 mdb_printf("%*s... ]",
|
|
1035 (pap->pa_depth + pap->pa_nest) * pap->pa_tab, "");
|
|
1036 } else {
|
|
1037 mdb_printf("%*s]",
|
|
1038 (pap->pa_depth + pap->pa_nest) * pap->pa_tab, "");
|
|
1039 }
|
|
1040 }
|
|
1041
|
|
1042 /* copy the hole array info, since it may have been grown */
|
|
1043 pap->pa_holes = pa.pa_holes;
|
|
1044 pap->pa_nholes = pa.pa_nholes;
|
|
1045
|
|
1046 return (0);
|
|
1047 }
|
|
1048
|
|
1049 /*
|
|
1050 * Print out a struct or union header. We need only print the open brace
|
|
1051 * because mdb_ctf_type_visit() itself will automatically recurse through
|
|
1052 * all members of the given struct or union.
|
|
1053 */
|
|
1054 /*ARGSUSED*/
|
|
1055 static int
|
|
1056 print_sou(const char *type, const char *name, mdb_ctf_id_t id,
|
|
1057 mdb_ctf_id_t base, ulong_t off, printarg_t *pap)
|
|
1058 {
|
|
1059 if (pap->pa_depth == pap->pa_maxdepth)
|
|
1060 mdb_printf("{ ... }");
|
|
1061 else
|
|
1062 mdb_printf("{");
|
|
1063 pap->pa_delim = "\n";
|
|
1064 return (0);
|
|
1065 }
|
|
1066
|
|
1067 /*
|
|
1068 * Print an enum value. We attempt to convert the value to the corresponding
|
|
1069 * enum name and print that if possible.
|
|
1070 */
|
|
1071 /*ARGSUSED*/
|
|
1072 static int
|
|
1073 print_enum(const char *type, const char *name, mdb_ctf_id_t id,
|
|
1074 mdb_ctf_id_t base, ulong_t off, printarg_t *pap)
|
|
1075 {
|
|
1076 mdb_tgt_addr_t addr = pap->pa_addr + off / NBBY;
|
|
1077 const char *ename;
|
|
1078 int value;
|
|
1079
|
|
1080 if (!(pap->pa_flags & PA_SHOWVAL))
|
|
1081 return (0);
|
|
1082
|
|
1083 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as,
|
|
1084 &value, sizeof (value), addr) != sizeof (value)) {
|
|
1085 mdb_warn("failed to read %s integer at %llx", name, addr);
|
|
1086 return (1);
|
|
1087 }
|
|
1088
|
|
1089 if (pap->pa_flags & PA_INTHEX)
|
|
1090 mdb_printf("%#x", value);
|
|
1091 else
|
|
1092 mdb_printf("%#d", value);
|
|
1093
|
|
1094 ename = mdb_ctf_enum_name(base, value);
|
|
1095 mdb_printf(" (%s)", (ename != NULL)? ename : "???");
|
|
1096
|
|
1097 return (0);
|
|
1098 }
|
|
1099
|
|
1100 /*
|
|
1101 * Just print a semicolon if we run into a forward tag.
|
|
1102 */
|
|
1103 /*ARGSUSED*/
|
|
1104 static int
|
|
1105 print_tag(const char *type, const char *name, mdb_ctf_id_t id,
|
|
1106 mdb_ctf_id_t base, ulong_t off, printarg_t *pap)
|
|
1107 {
|
|
1108 if (pap->pa_flags & PA_SHOWVAL)
|
|
1109 mdb_printf("; ");
|
|
1110
|
|
1111 mdb_printf("(forward declaration)");
|
|
1112 return (0);
|
|
1113 }
|
|
1114
|
|
1115 static void
|
|
1116 print_hole(printarg_t *pap, int depth, ulong_t off, ulong_t endoff)
|
|
1117 {
|
|
1118 ulong_t bits = endoff - off;
|
|
1119 ulong_t size = bits / NBBY;
|
|
1120 ctf_encoding_t e;
|
|
1121
|
|
1122 static const char *const name = "<<HOLE>>";
|
|
1123 char type[MDB_SYM_NAMLEN];
|
|
1124
|
|
1125 int bitfield =
|
|
1126 (off % NBBY != 0 ||
|
|
1127 bits % NBBY != 0 ||
|
|
1128 size > 8 ||
|
|
1129 (size & (size - 1)) != 0);
|
|
1130
|
|
1131 ASSERT(off < endoff);
|
|
1132
|
|
1133 if (bits > NBBY * sizeof (uint64_t)) {
|
|
1134 ulong_t end;
|
|
1135
|
|
1136 /*
|
|
1137 * The hole is larger than the largest integer type. To
|
|
1138 * handle this, we split up the hole at 8-byte-aligned
|
|
1139 * boundaries, recursing to print each subsection. For
|
|
1140 * normal C structures, we'll loop at most twice.
|
|
1141 */
|
|
1142 for (; off < endoff; off = end) {
|
|
1143 end = P2END(off, NBBY * sizeof (uint64_t));
|
|
1144 if (end > endoff)
|
|
1145 end = endoff;
|
|
1146
|
|
1147 ASSERT((end - off) <= NBBY * sizeof (uint64_t));
|
|
1148 print_hole(pap, depth, off, end);
|
|
1149 }
|
|
1150 ASSERT(end == endoff);
|
|
1151
|
|
1152 return;
|
|
1153 }
|
|
1154
|
|
1155 if (bitfield)
|
|
1156 (void) mdb_snprintf(type, sizeof (type), "unsigned");
|
|
1157 else
|
|
1158 (void) mdb_snprintf(type, sizeof (type), "uint%d_t", bits);
|
|
1159
|
|
1160 if (pap->pa_flags & (PA_SHOWTYPE | PA_SHOWNAME | PA_SHOWADDR))
|
|
1161 mdb_printf("%*s", (depth + pap->pa_nest) * pap->pa_tab, "");
|
|
1162
|
|
1163 if (pap->pa_flags & PA_SHOWADDR) {
|
|
1164 if (off % NBBY == 0)
|
|
1165 mdb_printf("%llx ", pap->pa_addr + off / NBBY);
|
|
1166 else
|
|
1167 mdb_printf("%llx.%lx ",
|
|
1168 pap->pa_addr + off / NBBY, off % NBBY);
|
|
1169 }
|
|
1170
|
|
1171 if (pap->pa_flags & PA_SHOWTYPE)
|
|
1172 mdb_printf("%s ", type);
|
|
1173
|
|
1174 if (pap->pa_flags & PA_SHOWNAME)
|
|
1175 mdb_printf("%s", name);
|
|
1176
|
|
1177 if (bitfield && (pap->pa_flags & PA_SHOWTYPE))
|
|
1178 mdb_printf(" :%d", bits);
|
|
1179
|
|
1180 mdb_printf("%s ", (pap->pa_flags & PA_SHOWVAL)? " =" : "");
|
|
1181
|
|
1182 /*
|
|
1183 * We fake up a ctf_encoding_t, and use print_int_val() to print
|
|
1184 * the value. Holes are always processed as unsigned integers.
|
|
1185 */
|
|
1186 bzero(&e, sizeof (e));
|
|
1187 e.cte_format = 0;
|
|
1188 e.cte_offset = 0;
|
|
1189 e.cte_bits = bits;
|
|
1190
|
|
1191 if (print_int_val(type, &e, off, pap) != 0)
|
|
1192 mdb_iob_discard(mdb.m_out);
|
|
1193 else
|
|
1194 mdb_iob_puts(mdb.m_out, pap->pa_delim);
|
|
1195 }
|
|
1196
|
|
1197 /*
|
|
1198 * The print_close_sou() function is called for each structure or union
|
|
1199 * which has been completed. For structures, we detect and print any holes
|
|
1200 * before printing the closing brace.
|
|
1201 */
|
|
1202 static void
|
|
1203 print_close_sou(printarg_t *pap, int newdepth)
|
|
1204 {
|
|
1205 int d = newdepth + pap->pa_nest;
|
|
1206
|
|
1207 if ((pap->pa_flags & PA_SHOWHOLES) && !pap->pa_holes[d].hi_isunion) {
|
|
1208 ulong_t end = pap->pa_holes[d + 1].hi_offset;
|
|
1209 ulong_t expected = pap->pa_holes[d].hi_offset;
|
|
1210
|
|
1211 if (end < expected)
|
|
1212 print_hole(pap, newdepth + 1, end, expected);
|
|
1213 }
|
|
1214 mdb_printf("%*s}\n", d * pap->pa_tab, "");
|
|
1215 }
|
|
1216
|
|
1217 static printarg_f *const printfuncs[] = {
|
|
1218 print_int, /* CTF_K_INTEGER */
|
|
1219 print_float, /* CTF_K_FLOAT */
|
|
1220 print_ptr, /* CTF_K_POINTER */
|
|
1221 print_array, /* CTF_K_ARRAY */
|
|
1222 print_ptr, /* CTF_K_FUNCTION */
|
|
1223 print_sou, /* CTF_K_STRUCT */
|
|
1224 print_sou, /* CTF_K_UNION */
|
|
1225 print_enum, /* CTF_K_ENUM */
|
|
1226 print_tag /* CTF_K_FORWARD */
|
|
1227 };
|
|
1228
|
|
1229 /*
|
|
1230 * The elt_print function is used as the mdb_ctf_type_visit callback. For
|
|
1231 * each element, we print an appropriate name prefix and then call the
|
|
1232 * print subroutine for this type class in the array above.
|
|
1233 */
|
|
1234 static int
|
|
1235 elt_print(const char *name, mdb_ctf_id_t id, ulong_t off, int depth, void *data)
|
|
1236 {
|
|
1237 char type[MDB_SYM_NAMLEN];
|
|
1238 int kind, rc, d;
|
|
1239 mdb_ctf_id_t base;
|
|
1240 printarg_t *pap = data;
|
|
1241
|
|
1242 for (d = pap->pa_depth - 1; d >= depth; d--)
|
|
1243 print_close_sou(pap, d);
|
|
1244
|
|
1245 if (depth > pap->pa_maxdepth)
|
|
1246 return (0);
|
|
1247
|
|
1248 if (mdb_ctf_type_resolve(id, &base) == -1 ||
|
|
1249 (kind = mdb_ctf_type_kind(base)) == -1)
|
|
1250 return (-1); /* errno is set for us */
|
|
1251
|
|
1252 if (mdb_ctf_type_name(id, type, sizeof (type)) == NULL)
|
|
1253 (void) strcpy(type, "(?)");
|
|
1254
|
|
1255 if (pap->pa_flags & PA_SHOWHOLES) {
|
|
1256 ctf_encoding_t e;
|
|
1257 ssize_t nsize;
|
|
1258 ulong_t newoff;
|
|
1259 holeinfo_t *hole;
|
|
1260 int extra = IS_COMPOSITE(kind)? 1 : 0;
|
|
1261
|
|
1262 /*
|
|
1263 * grow the hole array, if necessary
|
|
1264 */
|
|
1265 if (pap->pa_nest + depth + extra >= pap->pa_nholes) {
|
|
1266 int new = MAX(MAX(8, pap->pa_nholes * 2),
|
|
1267 pap->pa_nest + depth + extra + 1);
|
|
1268
|
|
1269 holeinfo_t *nhi = mdb_zalloc(
|
|
1270 sizeof (*nhi) * new, UM_NOSLEEP | UM_GC);
|
|
1271
|
|
1272 bcopy(pap->pa_holes, nhi,
|
|
1273 pap->pa_nholes * sizeof (*nhi));
|
|
1274
|
|
1275 pap->pa_holes = nhi;
|
|
1276 pap->pa_nholes = new;
|
|
1277 }
|
|
1278
|
|
1279 hole = &pap->pa_holes[depth + pap->pa_nest];
|
|
1280
|
|
1281 if (depth != 0 && off > hole->hi_offset)
|
|
1282 print_hole(pap, depth, hole->hi_offset, off);
|
|
1283
|
|
1284 /* compute the next expected offset */
|
|
1285 if (kind == CTF_K_INTEGER &&
|
|
1286 mdb_ctf_type_encoding(base, &e) == 0)
|
|
1287 newoff = off + e.cte_bits;
|
|
1288 else if ((nsize = mdb_ctf_type_size(base)) >= 0)
|
|
1289 newoff = off + nsize * NBBY;
|
|
1290 else {
|
|
1291 /* something bad happened, disable hole checking */
|
|
1292 newoff = -1UL; /* ULONG_MAX */
|
|
1293 }
|
|
1294
|
|
1295 hole->hi_offset = newoff;
|
|
1296
|
|
1297 if (IS_COMPOSITE(kind)) {
|
|
1298 hole->hi_isunion = (kind == CTF_K_UNION);
|
|
1299 hole++;
|
|
1300 hole->hi_offset = off;
|
|
1301 }
|
|
1302 }
|
|
1303
|
|
1304 if (pap->pa_flags & (PA_SHOWTYPE | PA_SHOWNAME | PA_SHOWADDR))
|
|
1305 mdb_printf("%*s", (depth + pap->pa_nest) * pap->pa_tab, "");
|
|
1306
|
|
1307 if (depth != 0) {
|
|
1308 if (pap->pa_flags & PA_SHOWADDR) {
|
|
1309 if (off % NBBY == 0)
|
|
1310 mdb_printf("%llx ", pap->pa_addr + off / NBBY);
|
|
1311 else
|
|
1312 mdb_printf("%llx.%lx ",
|
|
1313 pap->pa_addr + off / NBBY, off % NBBY);
|
|
1314 }
|
|
1315
|
|
1316 if (pap->pa_flags & PA_SHOWTYPE) {
|
|
1317 mdb_printf("%s", type);
|
|
1318 /*
|
|
1319 * We want to avoid printing a trailing space when
|
|
1320 * dealing with pointers in a structure, so we end
|
|
1321 * up with:
|
|
1322 *
|
|
1323 * label_t *t_onfault = 0
|
|
1324 */
|
|
1325 if (type[strlen(type) - 1] != '*')
|
|
1326 mdb_printf(" ");
|
|
1327 }
|
|
1328
|
|
1329 if (pap->pa_flags & PA_SHOWNAME) {
|
|
1330 if (depth == 1 && pap->pa_prefix != NULL)
|
|
1331 mdb_printf("%s%s", pap->pa_prefix,
|
|
1332 pap->pa_suffix);
|
|
1333 mdb_printf("%s", name);
|
|
1334 }
|
|
1335
|
|
1336 if ((pap->pa_flags & PA_SHOWTYPE) && kind == CTF_K_INTEGER) {
|
|
1337 ctf_encoding_t e;
|
|
1338
|
|
1339 if (mdb_ctf_type_encoding(base, &e) == 0) {
|
|
1340 ulong_t bits = e.cte_bits;
|
|
1341 ulong_t size = bits / NBBY;
|
|
1342
|
|
1343 if (bits % NBBY != 0 ||
|
|
1344 off % NBBY != 0 ||
|
|
1345 size > 8 ||
|
|
1346 size != mdb_ctf_type_size(base))
|
|
1347 mdb_printf(" :%d", bits);
|
|
1348 }
|
|
1349 }
|
|
1350
|
|
1351 mdb_printf("%s ", pap->pa_flags & PA_SHOWVAL ? " =" : "");
|
|
1352 } else if (IS_SCALAR(kind) || pap->pa_maxdepth == 0) {
|
|
1353 if (pap->pa_flags & PA_SHOWADDR) {
|
|
1354 if (off % NBBY == 0)
|
|
1355 mdb_printf("%llx ", pap->pa_addr + off / NBBY);
|
|
1356 else
|
|
1357 mdb_printf("%llx.%lx ",
|
|
1358 pap->pa_addr + off / NBBY, off % NBBY);
|
|
1359 }
|
|
1360
|
|
1361 if (pap->pa_flags & PA_SHOWTYPE) {
|
|
1362 mdb_printf("%s", type);
|
|
1363 /*
|
|
1364 * For the zero-depth case, we always print the trailing
|
|
1365 * space unless we also have a prefix.
|
|
1366 */
|
|
1367 if (type[strlen(type) - 1] != '*' ||
|
|
1368 !((pap->pa_flags & PA_SHOWNAME) &&
|
|
1369 pap->pa_prefix != NULL))
|
|
1370 mdb_printf(" ", type);
|
|
1371 }
|
|
1372
|
|
1373 if ((pap->pa_flags & PA_SHOWNAME) && pap->pa_prefix != NULL)
|
|
1374 mdb_printf("%s", pap->pa_prefix);
|
|
1375
|
|
1376 if ((pap->pa_flags & PA_SHOWTYPE) &&
|
|
1377 kind == CTF_K_INTEGER) {
|
|
1378 ctf_encoding_t e;
|
|
1379
|
|
1380 if (mdb_ctf_type_encoding(base, &e) == 0) {
|
|
1381 ulong_t bits = e.cte_bits;
|
|
1382 ulong_t size = bits / NBBY;
|
|
1383
|
|
1384 if (bits % NBBY != 0 ||
|
|
1385 off % NBBY != 0 ||
|
|
1386 size > 8 ||
|
|
1387 size != mdb_ctf_type_size(base))
|
|
1388 mdb_printf(" :%d", bits);
|
|
1389 }
|
|
1390 }
|
|
1391
|
|
1392 if ((pap->pa_flags & PA_SHOWNAME) && pap->pa_prefix != NULL)
|
|
1393 mdb_printf("%s ",
|
|
1394 pap->pa_flags & PA_SHOWVAL ? " =" : "");
|
|
1395
|
|
1396 if (pap->pa_prefix != NULL)
|
|
1397 name = pap->pa_prefix;
|
|
1398 }
|
|
1399
|
|
1400 pap->pa_depth = depth;
|
|
1401 if (kind <= CTF_K_UNKNOWN || kind >= CTF_K_TYPEDEF) {
|
|
1402 mdb_warn("unknown ctf for %s type %s kind %d\n",
|
|
1403 name, type, kind);
|
|
1404 return (-1);
|
|
1405 }
|
|
1406 rc = printfuncs[kind - 1](type, name, id, base, off, pap);
|
|
1407
|
|
1408 if (rc != 0)
|
|
1409 mdb_iob_discard(mdb.m_out);
|
|
1410 else
|
|
1411 mdb_iob_puts(mdb.m_out, pap->pa_delim);
|
|
1412
|
|
1413 return (rc);
|
|
1414 }
|
|
1415
|
|
1416 /*
|
|
1417 * Special semantics for pipelines.
|
|
1418 */
|
|
1419 static int
|
|
1420 pipe_print(mdb_ctf_id_t id, ulong_t off, void *data)
|
|
1421 {
|
|
1422 printarg_t *pap = data;
|
|
1423 ssize_t size;
|
|
1424 static const char *const fsp[] = { "%#r", "%#r", "%#r", "%#llr" };
|
|
1425 uintptr_t value;
|
|
1426 uintptr_t addr = pap->pa_addr + off / NBBY;
|
|
1427 mdb_ctf_id_t base;
|
|
1428 ctf_encoding_t e;
|
|
1429
|
|
1430 union {
|
|
1431 uint64_t i8;
|
|
1432 uint32_t i4;
|
|
1433 uint16_t i2;
|
|
1434 uint8_t i1;
|
|
1435 } u;
|
|
1436
|
|
1437 if (mdb_ctf_type_resolve(id, &base) == -1) {
|
|
1438 mdb_warn("could not resolve type\n");
|
|
1439 return (-1);
|
|
1440 }
|
|
1441
|
|
1442 /*
|
|
1443 * If the user gives -a, then always print out the address of the
|
|
1444 * member.
|
|
1445 */
|
|
1446 if ((pap->pa_flags & PA_SHOWADDR)) {
|
|
1447 mdb_printf("%#lr\n", addr);
|
|
1448 return (0);
|
|
1449 }
|
|
1450
|
|
1451 again:
|
|
1452 switch (mdb_ctf_type_kind(base)) {
|
|
1453 case CTF_K_POINTER:
|
|
1454 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as,
|
|
1455 &value, sizeof (value), addr) != sizeof (value)) {
|
|
1456 mdb_warn("failed to read pointer at %p", addr);
|
|
1457 return (-1);
|
|
1458 }
|
|
1459 mdb_printf("%#lr\n", value);
|
|
1460 break;
|
|
1461
|
|
1462 case CTF_K_INTEGER:
|
|
1463 case CTF_K_ENUM:
|
|
1464 if (mdb_ctf_type_encoding(base, &e) != 0) {
|
|
1465 mdb_printf("could not get type encoding\n");
|
|
1466 return (-1);
|
|
1467 }
|
|
1468
|
|
1469 /*
|
|
1470 * For immediate values, we just print out the value.
|
|
1471 */
|
|
1472 size = e.cte_bits / NBBY;
|
|
1473 if (size > 8 || (e.cte_bits % NBBY) != 0 ||
|
|
1474 (size & (size - 1)) != 0) {
|
|
1475 return (print_bitfield(off, pap, &e));
|
|
1476 }
|
|
1477
|
|
1478 if (mdb_tgt_aread(pap->pa_tgt, pap->pa_as, &u.i8, size,
|
|
1479 addr) != size) {
|
|
1480 mdb_warn("failed to read %lu bytes at %p",
|
|
1481 (ulong_t)size, pap->pa_addr);
|
|
1482 return (-1);
|
|
1483 }
|
|
1484
|
|
1485 switch (size) {
|
|
1486 case sizeof (uint8_t):
|
|
1487 mdb_printf(fsp[0], u.i1);
|
|
1488 break;
|
|
1489 case sizeof (uint16_t):
|
|
1490 mdb_printf(fsp[1], u.i2);
|
|
1491 break;
|
|
1492 case sizeof (uint32_t):
|
|
1493 mdb_printf(fsp[2], u.i4);
|
|
1494 break;
|
|
1495 case sizeof (uint64_t):
|
|
1496 mdb_printf(fsp[3], u.i8);
|
|
1497 break;
|
|
1498 }
|
|
1499 mdb_printf("\n");
|
|
1500 break;
|
|
1501
|
|
1502 case CTF_K_FUNCTION:
|
|
1503 case CTF_K_FLOAT:
|
|
1504 case CTF_K_ARRAY:
|
|
1505 case CTF_K_UNKNOWN:
|
|
1506 case CTF_K_STRUCT:
|
|
1507 case CTF_K_UNION:
|
|
1508 case CTF_K_FORWARD:
|
|
1509 /*
|
|
1510 * For these types, always print the address of the member
|
|
1511 */
|
|
1512 mdb_printf("%#lr\n", addr);
|
|
1513 break;
|
|
1514
|
|
1515 default:
|
|
1516 mdb_warn("unknown type %d", mdb_ctf_type_kind(base));
|
|
1517 break;
|
|
1518 }
|
|
1519
|
|
1520 return (0);
|
|
1521 }
|
|
1522
|
|
1523 static int
|
|
1524 parse_delimiter(char **strp)
|
|
1525 {
|
|
1526 switch (**strp) {
|
|
1527 case '\0':
|
|
1528 return (MEMBER_DELIM_DONE);
|
|
1529
|
|
1530 case '.':
|
|
1531 *strp = *strp + 1;
|
|
1532 return (MEMBER_DELIM_DOT);
|
|
1533
|
|
1534 case '[':
|
|
1535 *strp = *strp + 1;
|
|
1536 return (MEMBER_DELIM_LBR);
|
|
1537
|
|
1538 case '-':
|
|
1539 *strp = *strp + 1;
|
|
1540 if (**strp == '>') {
|
|
1541 *strp = *strp + 1;
|
|
1542 return (MEMBER_DELIM_PTR);
|
|
1543 }
|
|
1544 *strp = *strp - 1;
|
|
1545 /*FALLTHROUGH*/
|
|
1546 default:
|
|
1547 return (MEMBER_DELIM_ERR);
|
|
1548 }
|
|
1549 }
|
|
1550
|
|
1551 static int
|
|
1552 deref(printarg_t *pap, size_t size)
|
|
1553 {
|
|
1554 uint32_t a32;
|
|
1555 mdb_tgt_as_t as = pap->pa_as;
|
|
1556 mdb_tgt_addr_t *ap = &pap->pa_addr;
|
|
1557
|
|
1558 if (size == sizeof (mdb_tgt_addr_t)) {
|
|
1559 if (mdb_tgt_aread(mdb.m_target, as, ap, size, *ap) == -1) {
|
|
1560 mdb_warn("could not dereference pointer %llx\n", *ap);
|
|
1561 return (-1);
|
|
1562 }
|
|
1563 } else {
|
|
1564 if (mdb_tgt_aread(mdb.m_target, as, &a32, size, *ap) == -1) {
|
|
1565 mdb_warn("could not dereference pointer %x\n", *ap);
|
|
1566 return (-1);
|
|
1567 }
|
|
1568
|
|
1569 *ap = (mdb_tgt_addr_t)a32;
|
|
1570 }
|
|
1571
|
|
1572 /*
|
|
1573 * We've dereferenced at least once, we must be on the real
|
|
1574 * target. If we were in the immediate target, reset to the real
|
|
1575 * target; it's reset as needed when we return to the print
|
|
1576 * routines.
|
|
1577 */
|
|
1578 if (pap->pa_tgt == pap->pa_immtgt)
|
|
1579 pap->pa_tgt = pap->pa_realtgt;
|
|
1580
|
|
1581 return (0);
|
|
1582 }
|
|
1583
|
|
1584 static int
|
|
1585 parse_member(printarg_t *pap, const char *str, mdb_ctf_id_t id,
|
|
1586 mdb_ctf_id_t *idp, ulong_t *offp, int *last_deref)
|
|
1587 {
|
|
1588 int delim;
|
|
1589 char member[64];
|
|
1590 char buf[128];
|
|
1591 uint_t index;
|
|
1592 char *start = (char *)str;
|
|
1593 char *end;
|
|
1594 ulong_t off = 0;
|
|
1595 mdb_ctf_arinfo_t ar;
|
|
1596 mdb_ctf_id_t rid;
|
|
1597 int kind;
|
|
1598 ssize_t size;
|
|
1599 int non_array = FALSE;
|
|
1600
|
|
1601 /*
|
|
1602 * id always has the unresolved type for printing error messages
|
|
1603 * that include the type; rid always has the resolved type for
|
|
1604 * use in mdb_ctf_* calls. It is possible for this command to fail,
|
|
1605 * however, if the resolved type is in the parent and it is currently
|
|
1606 * unavailable. Note that we also can't print out the name of the
|
|
1607 * type, since that would also rely on looking up the resolved name.
|
|
1608 */
|
|
1609 if (mdb_ctf_type_resolve(id, &rid) != 0) {
|
|
1610 mdb_warn("failed to resolve type");
|
|
1611 return (-1);
|
|
1612 }
|
|
1613
|
|
1614 delim = parse_delimiter(&start);
|
|
1615 /*
|
|
1616 * If the user fails to specify an initial delimiter, guess -> for
|
|
1617 * pointer types and . for non-pointer types.
|
|
1618 */
|
|
1619 if (delim == MEMBER_DELIM_ERR)
|
|
1620 delim = (mdb_ctf_type_kind(rid) == CTF_K_POINTER) ?
|
|
1621 MEMBER_DELIM_PTR : MEMBER_DELIM_DOT;
|
|
1622
|
|
1623 *last_deref = FALSE;
|
|
1624
|
|
1625 while (delim != MEMBER_DELIM_DONE) {
|
|
1626 switch (delim) {
|
|
1627 case MEMBER_DELIM_PTR:
|
|
1628 kind = mdb_ctf_type_kind(rid);
|
|
1629 if (kind != CTF_K_POINTER) {
|
|
1630 mdb_warn("%s is not a pointer type\n",
|
|
1631 mdb_ctf_type_name(id, buf, sizeof (buf)));
|
|
1632 return (-1);
|
|
1633 }
|
|
1634
|
|
1635 size = mdb_ctf_type_size(id);
|
|
1636 if (deref(pap, size) != 0)
|
|
1637 return (-1);
|
|
1638
|
|
1639 (void) mdb_ctf_type_reference(rid, &id);
|
|
1640 (void) mdb_ctf_type_resolve(id, &rid);
|
|
1641
|
|
1642 off = 0;
|
|
1643 break;
|
|
1644
|
|
1645 case MEMBER_DELIM_DOT:
|
|
1646 kind = mdb_ctf_type_kind(rid);
|
|
1647 if (kind != CTF_K_STRUCT && kind != CTF_K_UNION) {
|
|
1648 mdb_warn("%s is not a struct or union type\n",
|
|
1649 mdb_ctf_type_name(id, buf, sizeof (buf)));
|
|
1650 return (-1);
|
|
1651 }
|
|
1652 break;
|
|
1653
|
|
1654 case MEMBER_DELIM_LBR:
|
|
1655 end = strchr(start, ']');
|
|
1656 if (end == NULL) {
|
|
1657 mdb_warn("no trailing ']'\n");
|
|
1658 return (-1);
|
|
1659 }
|
|
1660
|
|
1661 (void) mdb_snprintf(member, end - start + 1, start);
|
|
1662
|
|
1663 index = mdb_strtoull(member);
|
|
1664
|
|
1665 switch (mdb_ctf_type_kind(rid)) {
|
|
1666 case CTF_K_POINTER:
|
|
1667 size = mdb_ctf_type_size(rid);
|
|
1668
|
|
1669 if (deref(pap, size) != 0)
|
|
1670 return (-1);
|
|
1671
|
|
1672 (void) mdb_ctf_type_reference(rid, &id);
|
|
1673 (void) mdb_ctf_type_resolve(id, &rid);
|
|
1674
|
|
1675 size = mdb_ctf_type_size(id);
|
|
1676 if (size <= 0) {
|
|
1677 mdb_warn("cannot dereference void "
|
|
1678 "type\n");
|
|
1679 return (-1);
|
|
1680 }
|
|
1681
|
|
1682 pap->pa_addr += index * size;
|
|
1683 off = 0;
|
|
1684
|
|
1685 if (index == 0 && non_array)
|
|
1686 *last_deref = TRUE;
|
|
1687 break;
|
|
1688
|
|
1689 case CTF_K_ARRAY:
|
|
1690 (void) mdb_ctf_array_info(rid, &ar);
|
|
1691
|
|
1692 if (index >= ar.mta_nelems) {
|
|
1693 mdb_warn("index %r is outside of "
|
|
1694 "array bounds [0 .. %r]\n",
|
|
1695 index, ar.mta_nelems - 1);
|
|
1696 }
|
|
1697
|
|
1698 id = ar.mta_contents;
|
|
1699 (void) mdb_ctf_type_resolve(id, &rid);
|
|
1700
|
|
1701 size = mdb_ctf_type_size(id);
|
|
1702 if (size <= 0) {
|
|
1703 mdb_warn("cannot dereference void "
|
|
1704 "type\n");
|
|
1705 return (-1);
|
|
1706 }
|
|
1707
|
|
1708 pap->pa_addr += index * size;
|
|
1709 off = 0;
|
|
1710 break;
|
|
1711
|
|
1712 default:
|
|
1713 mdb_warn("cannot index into non-array, "
|
|
1714 "non-pointer type\n");
|
|
1715 return (-1);
|
|
1716 }
|
|
1717
|
|
1718 start = end + 1;
|
|
1719 delim = parse_delimiter(&start);
|
|
1720 continue;
|
|
1721
|
|
1722 case MEMBER_DELIM_ERR:
|
|
1723 default:
|
|
1724 mdb_warn("'%c' is not a valid delimiter\n", *start);
|
|
1725 return (-1);
|
|
1726 }
|
|
1727
|
|
1728 *last_deref = FALSE;
|
|
1729 non_array = TRUE;
|
|
1730
|
|
1731 /*
|
|
1732 * Find the end of the member name; assume that a member
|
|
1733 * name is at least one character long.
|
|
1734 */
|
|
1735 for (end = start + 1; isalnum(*end) || *end == '_'; end++)
|
|
1736 continue;
|
|
1737
|
|
1738 (void) mdb_snprintf(member, end - start + 1, start);
|
|
1739
|
|
1740 if (mdb_ctf_member_info(rid, member, &off, &id) != 0) {
|
|
1741 mdb_warn("failed to find member %s of %s", member,
|
|
1742 mdb_ctf_type_name(id, buf, sizeof (buf)));
|
|
1743 return (-1);
|
|
1744 }
|
|
1745 (void) mdb_ctf_type_resolve(id, &rid);
|
|
1746
|
|
1747 pap->pa_addr += off / NBBY;
|
|
1748
|
|
1749 start = end;
|
|
1750 delim = parse_delimiter(&start);
|
|
1751 }
|
|
1752
|
|
1753
|
|
1754 *idp = id;
|
|
1755 *offp = off;
|
|
1756
|
|
1757 return (0);
|
|
1758 }
|
|
1759
|
|
1760 /*
|
|
1761 * Recursively descend a print a given data structure. We create a struct of
|
|
1762 * the relevant print arguments and then call mdb_ctf_type_visit() to do the
|
|
1763 * traversal, using elt_print() as the callback for each element.
|
|
1764 */
|
|
1765 /*ARGSUSED*/
|
|
1766 int
|
|
1767 cmd_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
1768 {
|
|
1769 uintptr_t opt_c = MDB_ARR_NOLIMIT, opt_l = MDB_ARR_NOLIMIT;
|
|
1770 uint_t opt_C = FALSE, opt_L = FALSE, opt_p = FALSE, opt_i = FALSE;
|
|
1771 uintptr_t opt_s = (uintptr_t)-1ul;
|
|
1772 int uflags = (flags & DCMD_ADDRSPEC) ? PA_SHOWVAL : 0;
|
|
1773 mdb_ctf_id_t id;
|
|
1774 int err = DCMD_OK;
|
|
1775
|
|
1776 mdb_tgt_t *t = mdb.m_target;
|
|
1777 printarg_t pa;
|
|
1778 int d, i;
|
|
1779
|
|
1780 char s_name[MDB_SYM_NAMLEN];
|
|
1781 mdb_syminfo_t s_info;
|
|
1782 GElf_Sym sym;
|
|
1783
|
|
1784 i = mdb_getopts(argc, argv,
|
|
1785 'a', MDB_OPT_SETBITS, PA_SHOWADDR, &uflags,
|
|
1786 'C', MDB_OPT_SETBITS, TRUE, &opt_C,
|
|
1787 'd', MDB_OPT_SETBITS, PA_INTDEC, &uflags,
|
|
1788 'h', MDB_OPT_SETBITS, PA_SHOWHOLES, &uflags,
|
|
1789 'L', MDB_OPT_SETBITS, TRUE, &opt_L,
|
|
1790 'n', MDB_OPT_SETBITS, PA_NOSYMBOLIC, &uflags,
|
|
1791 'p', MDB_OPT_SETBITS, TRUE, &opt_p,
|
|
1792 't', MDB_OPT_SETBITS, PA_SHOWTYPE, &uflags,
|
|
1793 'x', MDB_OPT_SETBITS, PA_INTHEX, &uflags,
|
|
1794 'c', MDB_OPT_UINTPTR, &opt_c,
|
|
1795 'l', MDB_OPT_UINTPTR, &opt_l,
|
|
1796 'i', MDB_OPT_SETBITS, TRUE, &opt_i,
|
|
1797 's', MDB_OPT_UINTPTR, &opt_s,
|
|
1798 NULL);
|
|
1799
|
|
1800 if (uflags & PA_INTHEX)
|
|
1801 uflags &= ~PA_INTDEC; /* -x and -d are mutually exclusive */
|
|
1802
|
|
1803 uflags |= PA_SHOWNAME;
|
|
1804
|
|
1805 if (opt_p && opt_i) {
|
|
1806 mdb_warn("-p and -i options are incompatible\n");
|
|
1807 return (DCMD_ERR);
|
|
1808 }
|
|
1809
|
|
1810 argc -= i;
|
|
1811 argv += i;
|
|
1812
|
|
1813 if (argc != 0 && argv->a_type == MDB_TYPE_STRING) {
|
|
1814 const char *t_name = s_name;
|
|
1815 int ret;
|
|
1816
|
|
1817 if (strchr("+-", argv->a_un.a_str[0]) != NULL)
|
|
1818 return (DCMD_USAGE);
|
|
1819
|
|
1820 if ((ret = args_to_typename(&argc, &argv, s_name,
|
|
1821 sizeof (s_name))) != 0)
|
|
1822 return (ret);
|
|
1823
|
|
1824 if (mdb_ctf_lookup_by_name(t_name, &id) != 0) {
|
|
1825 if (!(flags & DCMD_ADDRSPEC) || opt_i ||
|
|
1826 addr_to_sym(t, addr, s_name, sizeof (s_name),
|
|
1827 &sym, &s_info) == NULL ||
|
|
1828 mdb_ctf_lookup_by_symbol(&sym, &s_info, &id) != 0) {
|
|
1829
|
|
1830 mdb_warn("failed to look up type %s", t_name);
|
|
1831 return (DCMD_ABORT);
|
|
1832 }
|
|
1833 } else {
|
|
1834 argc--;
|
|
1835 argv++;
|
|
1836 }
|
|
1837
|
|
1838 } else if (!(flags & DCMD_ADDRSPEC) || opt_i) {
|
|
1839 return (DCMD_USAGE);
|
|
1840
|
|
1841 } else if (addr_to_sym(t, addr, s_name, sizeof (s_name),
|
|
1842 &sym, &s_info) == NULL) {
|
|
1843 mdb_warn("no symbol information for %a", addr);
|
|
1844 return (DCMD_ERR);
|
|
1845
|
|
1846 } else if (mdb_ctf_lookup_by_symbol(&sym, &s_info, &id) != 0) {
|
|
1847 mdb_warn("no type data available for %a [%u]", addr,
|
|
1848 s_info.sym_id);
|
|
1849 return (DCMD_ERR);
|
|
1850 }
|
|
1851
|
|
1852 pa.pa_tgt = mdb.m_target;
|
|
1853 pa.pa_realtgt = pa.pa_tgt;
|
|
1854 pa.pa_immtgt = NULL;
|
|
1855 pa.pa_as = opt_p ? MDB_TGT_AS_PHYS : MDB_TGT_AS_VIRT;
|
|
1856 pa.pa_armemlim = mdb.m_armemlim;
|
|
1857 pa.pa_arstrlim = mdb.m_arstrlim;
|
|
1858 pa.pa_delim = "\n";
|
|
1859 pa.pa_flags = uflags;
|
|
1860 pa.pa_nest = 0;
|
|
1861 pa.pa_tab = 4;
|
|
1862 pa.pa_prefix = NULL;
|
|
1863 pa.pa_suffix = NULL;
|
|
1864 pa.pa_holes = NULL;
|
|
1865 pa.pa_nholes = 0;
|
|
1866 pa.pa_depth = 0;
|
|
1867 pa.pa_maxdepth = opt_s;
|
|
1868
|
|
1869 if ((flags & DCMD_ADDRSPEC) && !opt_i)
|
|
1870 pa.pa_addr = opt_p ? mdb_get_dot() : addr;
|
|
1871 else
|
|
1872 pa.pa_addr = NULL;
|
|
1873
|
|
1874 if (opt_i) {
|
|
1875 const char *vargv[2];
|
|
1876 uintmax_t dot = mdb_get_dot();
|
|
1877 size_t outsize = mdb_ctf_type_size(id);
|
|
1878 vargv[0] = (const char *)˙
|
|
1879 vargv[1] = (const char *)&outsize;
|
|
1880 pa.pa_immtgt = mdb_tgt_create(mdb_value_tgt_create,
|
|
1881 0, 2, vargv);
|
|
1882 pa.pa_tgt = pa.pa_immtgt;
|
|
1883 }
|
|
1884
|
|
1885 if (opt_c != MDB_ARR_NOLIMIT)
|
|
1886 pa.pa_arstrlim = opt_c;
|
|
1887 if (opt_C)
|
|
1888 pa.pa_arstrlim = MDB_ARR_NOLIMIT;
|
|
1889 if (opt_l != MDB_ARR_NOLIMIT)
|
|
1890 pa.pa_armemlim = opt_l;
|
|
1891 if (opt_L)
|
|
1892 pa.pa_armemlim = MDB_ARR_NOLIMIT;
|
|
1893
|
|
1894 if (argc > 0) {
|
|
1895 for (i = 0; i < argc; i++) {
|
|
1896 mdb_ctf_id_t mid;
|
|
1897 int last_deref;
|
|
1898 ulong_t off;
|
|
1899 int kind;
|
|
1900 char buf[MDB_SYM_NAMLEN];
|
|
1901
|
|
1902 mdb_tgt_t *oldtgt = pa.pa_tgt;
|
|
1903 mdb_tgt_as_t oldas = pa.pa_as;
|
|
1904 mdb_tgt_addr_t oldaddr = pa.pa_addr;
|
|
1905
|
|
1906 if (argv->a_type == MDB_TYPE_STRING) {
|
|
1907 const char *member = argv[i].a_un.a_str;
|
|
1908 mdb_ctf_id_t rid;
|
|
1909
|
|
1910 if (parse_member(&pa, member, id, &mid,
|
|
1911 &off, &last_deref) != 0) {
|
|
1912 err = DCMD_ABORT;
|
|
1913 goto out;
|
|
1914 }
|
|
1915
|
|
1916 /*
|
|
1917 * If the member string ends with a "[0]"
|
|
1918 * (last_deref * is true) and the type is a
|
|
1919 * structure or union, * print "->" rather
|
|
1920 * than "[0]." in elt_print.
|
|
1921 */
|
|
1922 (void) mdb_ctf_type_resolve(mid, &rid);
|
|
1923 kind = mdb_ctf_type_kind(rid);
|
|
1924 if (last_deref && IS_SOU(kind)) {
|
|
1925 char *end;
|
|
1926 (void) mdb_snprintf(buf, sizeof (buf),
|
|
1927 "%s", member);
|
|
1928 end = strrchr(buf, '[');
|
|
1929 *end = '\0';
|
|
1930 pa.pa_suffix = "->";
|
|
1931 member = &buf[0];
|
|
1932 } else if (IS_SOU(kind)) {
|
|
1933 pa.pa_suffix = ".";
|
|
1934 } else {
|
|
1935 pa.pa_suffix = "";
|
|
1936 }
|
|
1937
|
|
1938 pa.pa_prefix = member;
|
|
1939 } else {
|
|
1940 ulong_t moff;
|
|
1941
|
|
1942 moff = (ulong_t)argv[i].a_un.a_val;
|
|
1943
|
|
1944 if (mdb_ctf_offset_to_name(id, moff * NBBY,
|
|
1945 buf, sizeof (buf), 0, &mid, &off) == -1) {
|
|
1946 mdb_warn("invalid offset %lx\n", moff);
|
|
1947 err = DCMD_ABORT;
|
|
1948 goto out;
|
|
1949 }
|
|
1950
|
|
1951 pa.pa_prefix = buf;
|
|
1952 pa.pa_addr += moff - off / NBBY;
|
|
1953 pa.pa_suffix = strlen(buf) == 0 ? "" : ".";
|
|
1954 }
|
|
1955
|
|
1956 off %= NBBY;
|
|
1957 if (flags & DCMD_PIPE_OUT) {
|
|
1958 if (pipe_print(mid, off, &pa) != 0) {
|
|
1959 mdb_warn("failed to print type");
|
|
1960 err = DCMD_ERR;
|
|
1961 goto out;
|
|
1962 }
|
|
1963 } else if (off != 0) {
|
|
1964 if (elt_print("", mid, off, 0, &pa) != 0) {
|
|
1965 mdb_warn("failed to print type");
|
|
1966 err = DCMD_ERR;
|
|
1967 goto out;
|
|
1968 }
|
|
1969 } else {
|
|
1970 if (mdb_ctf_type_visit(mid, elt_print,
|
|
1971 &pa) == -1) {
|
|
1972 mdb_warn("failed to print type");
|
|
1973 err = DCMD_ERR;
|
|
1974 goto out;
|
|
1975 }
|
|
1976
|
|
1977 for (d = pa.pa_depth - 1; d >= 0; d--)
|
|
1978 print_close_sou(&pa, d);
|
|
1979 }
|
|
1980
|
|
1981 pa.pa_depth = 0;
|
|
1982 pa.pa_tgt = oldtgt;
|
|
1983 pa.pa_as = oldas;
|
|
1984 pa.pa_addr = oldaddr;
|
|
1985 pa.pa_delim = "\n";
|
|
1986 }
|
|
1987
|
|
1988 } else if (flags & DCMD_PIPE_OUT) {
|
|
1989 if (pipe_print(id, 0, &pa) != 0) {
|
|
1990 mdb_warn("failed to print type");
|
|
1991 err = DCMD_ERR;
|
|
1992 goto out;
|
|
1993 }
|
|
1994 } else {
|
|
1995 if (mdb_ctf_type_visit(id, elt_print, &pa) == -1) {
|
|
1996 mdb_warn("failed to print type");
|
|
1997 err = DCMD_ERR;
|
|
1998 goto out;
|
|
1999 }
|
|
2000
|
|
2001 for (d = pa.pa_depth - 1; d >= 0; d--)
|
|
2002 print_close_sou(&pa, d);
|
|
2003 }
|
|
2004
|
|
2005 mdb_set_dot(addr + mdb_ctf_type_size(id));
|
|
2006 err = DCMD_OK;
|
|
2007 out:
|
|
2008 if (pa.pa_immtgt)
|
|
2009 mdb_tgt_destroy(pa.pa_immtgt);
|
|
2010 return (err);
|
|
2011 }
|
|
2012
|
|
2013 void
|
|
2014 print_help(void)
|
|
2015 {
|
|
2016 mdb_printf("-a show address of object\n"
|
|
2017 "-c limit limit the length of character arrays\n"
|
|
2018 "-C unlimit the length of character arrays\n"
|
|
2019 "-d output values in decimal\n"
|
|
2020 "-h print holes in structures\n"
|
|
2021 "-l limit limit the length of standard arrays\n"
|
|
2022 "-L unlimit the length of standard arrays\n"
|
|
2023 "-n don't print pointers as symbol offsets\n"
|
|
2024 "-p interpret address as a physical memory address\n"
|
|
2025 "-t show type of object\n"
|
|
2026 "-i interpret address as data of the given type\n"
|
|
2027 "-x output values in hexadecimal\n"
|
|
2028 "-s depth limit the recursion depth\n"
|
|
2029 "\n"
|
|
2030 "type may be omitted if the C type of addr can be inferred.\n"
|
|
2031 "\n"
|
|
2032 "Members may be specified with standard C syntax using the\n"
|
|
2033 "array indexing operator \"[index]\", structure member\n"
|
|
2034 "operator \".\", or structure pointer operator \"->\".\n"
|
|
2035 "\n"
|
|
2036 "Offsets must use the $[ expression ] syntax\n");
|
|
2037 }
|