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 * Copyright (c) 1988 AT&T 23 * All Rights Reserved 24 * 25 * 26 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 #ifndef _MCS_H 31 #define _MCS_H 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <stdarg.h> 40 #include <unistd.h> 41 #include <libelf.h> 42 #include <ar.h> 43 #include <string.h> 44 #include <signal.h> 45 #include <sys/stat.h> 46 #include <fcntl.h> 47 #include <memory.h> 48 #include <locale.h> 49 #include <sys/mman.h> 50 #include "sgs.h" 51 #include "gelf.h" 52 53 #define FORMAT "%-16s%-12ld%-6u%-6u%-8o%-10ld%-2s" 54 #define ROUNDUP(x) (((x) + 1) & ~1) 55 #define TMPDIR "/tmp" 56 57 #define DELETED -1 /* The section will be removed */ 58 #define NULLED -2 /* The section will be nulled */ 59 #define EXPANDED -3 /* The size of the section expanded */ 60 #define SHRUNK -4 /* The section shrinked */ 61 62 #define ACT_NOP 0x00000000 63 #define ACT_DELETE 0x00000001 64 #define ACT_PRINT 0x00000002 65 #define ACT_COMPRESS 0x00000003 66 #define ACT_APPEND 0x00000004 67 #define ACT_ZAP 0x00000005 68 #define SET_ACTION(x, y) x = (x & 0xfffffff0) | y 69 #define GET_ACTION(x) (x & 0x0000000f) 70 71 #define NOSEG 0x00000010 72 #define IN 0x00000020 /* section is IN a segment */ 73 #define PRIOR 0x00000030 /* section is PRIOR to a segment */ 74 #define AFTER 0x00000040 /* section is AFTER a segment */ 75 #define SET_LOC(x, y) x = (x & 0xffffff0f) | y 76 #define GET_LOC(x) (x & 0x000000f0) 77 78 #define CANDIDATE 0x00000100 79 #define MOVING 0x00000200 80 #define MODIFIED 0x00000400 81 82 #define UNSET_CANDIDATE(x) x = x & ~CANDIDATE 83 #define SET_CANDIDATE(x) x = x | CANDIDATE 84 #define ISCANDIDATE(x) (x & CANDIDATE) 85 #define SET_MOVING(x) x = (x | MOVING) 86 #define GET_MOVING(x) (x & MOVING) 87 #define SET_MODIFIED(x) x = (x | MODIFIED) 88 #define GET_MODIFIED(x) (x & MODIFIED) 89 90 #define FAILURE 1 91 #define SUCCESS 0 92 93 #define DONT_BUILD 3 /* this code is used to prevent building a new file */ 94 /* because mcs was given only -p */ 95 96 97 #define MCS 1 98 #define STRIP 2 99 #define STR_STRIP "strip" 100 101 /* 102 * Structure to hold section information. 103 */ 104 typedef struct section_info_table { 105 /* 106 * Section information. 107 */ 108 Elf_Scn *scn; /* Section */ 109 Elf_Data *data; /* Original data */ 110 Elf_Data *mdata; /* Modified data */ 111 char *name; /* Section name, or NULL if unknown */ 112 char *rel_name; 113 GElf_Shdr shdr; 114 GElf_Word secno; /* The new index */ 115 GElf_Word osecno; /* The original index */ 116 GElf_Word rel_scn_index; 117 GElf_Xword flags; 118 GElf_Xword rel_loc; 119 } section_info_table; 120 121 /* 122 * Structure to hold action information 123 */ 124 typedef struct action { 125 int a_action; /* Which action to take ? */ 126 int a_cnt; /* Am I applied ? */ 127 char *a_string; /* The string to be added. */ 128 } action; 129 130 /* 131 * Structure to hold the section names specified. 132 */ 133 typedef struct s_name { 134 char *name; 135 struct s_name *next; 136 unsigned char flags; 137 } S_Name; 138 #define SECT_NAME sect_head->name 139 #define SNAME_FLG_STRNCMP 0x01 /* Use strncmp() instead of strcmp() */ 140 /* for section name comparison. */ 141 142 /* 143 * Structure to hold command information 144 */ 145 typedef struct cmd_info { 146 List sh_groups; /* List of SHT_GROUP sections */ 147 int no_of_append; 148 int no_of_delete; 149 int no_of_nulled; 150 int no_of_compressed; 151 int no_of_moved; 152 size_t str_size; /* size of string to be appended */ 153 int flags; /* Various flags */ 154 } Cmd_Info; 155 156 #define MIGHT_CHG 0x0001 157 #define aFLAG 0x0002 158 #define cFLAG 0x0004 159 #define dFLAG 0x0008 160 #define lFLAG 0x0010 161 #define pFLAG 0x0020 162 #define xFLAG 0x0040 163 #define VFLAG 0x0080 164 #define zFLAG 0x0100 165 #define I_AM_STRIP 0x0200 166 #define SHF_GROUP_MOVE 0x0400 /* SHF_GROUP section moves */ 167 #define SHF_GROUP_DEL 0x0800 /* SHF_GROUP section deleted */ 168 169 #define CHK_OPT(_x, _y) (_x->flags & _y) 170 171 /* 172 * Segment Table 173 */ 174 typedef struct seg_table { 175 GElf_Off p_offset; 176 GElf_Xword p_memsz; 177 GElf_Xword p_filesz; 178 } Seg_Table; 179 180 /* 181 * Temporary files 182 */ 183 typedef struct { 184 const char *tmp_name; /* NULL, or name of temp file */ 185 int tmp_unlink; /* True if should unlink prior to exit */ 186 } Tmp_File; 187 188 /* 189 * Function prototypes. 190 */ 191 int apply_action(section_info_table *, char *, Cmd_Info *); 192 int each_file(char *, Cmd_Info *); 193 void error_message(int, ...); 194 void mcs_exit(int); 195 Listnode * list_appendc(List *, const void*); 196 int sectcmp(char *); 197 void free_tempfile(Tmp_File *); 198 199 /* 200 * Error messages 201 */ 202 #define MALLOC_ERROR 0 203 #define USAGE_ERROR 1 204 #define ELFVER_ERROR 2 205 #define OPEN_ERROR 3 206 #define LIBELF_ERROR 4 207 #define OPEN_TEMP_ERROR 5 208 #define WRITE_ERROR 6 209 #define GETARHDR_ERROR 7 210 #define FILE_TYPE_ERROR 8 211 #define NOT_MANIPULATED_ERROR 9 212 #define WRN_MANIPULATED_ERROR 10 213 #define NO_SECT_TABLE_ERROR 11 214 #define READ_ERROR 12 215 #define READ_MANI_ERROR 13 216 #define WRITE_MANI_ERROR 14 217 #define LSEEK_MANI_ERROR 15 218 #define SYM_TAB_AR_ERROR 16 219 #define EXEC_AR_ERROR 17 220 #define READ_SYS_ERROR 18 221 #define OPEN_WRITE_ERROR 19 222 #define ACT_PRINT_ERROR 20 223 #define ACT_DELETE1_ERROR 21 224 #define ACT_DELETE2_ERROR 22 225 #define ACT_APPEND1_ERROR 23 226 #define ACT_APPEND2_ERROR 24 227 #define ACT_COMPRESS1_ERROR 25 228 #define ACT_COMPRESS2_ERROR 26 229 #define ACCESS_ERROR 27 230 #define WRITE_MANI_ERROR2 28 231 232 #define PLAIN_ERROR 0 233 #define LIBelf_ERROR 1 234 #define SYSTEM_ERROR 2 235 236 #ifdef __cplusplus 237 } 238 #endif 239 240 #endif /* _MCS_H */ 241