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 2009 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 /* 30 * Copyright 2022 OmniOS Community Edition (OmniOSce) Association. 31 */ 32 33 #ifndef _MCS_H 34 #define _MCS_H 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <stdarg.h> 43 #include <unistd.h> 44 #include <libelf.h> 45 #include <ar.h> 46 #include <string.h> 47 #include <signal.h> 48 #include <sys/stat.h> 49 #include <fcntl.h> 50 #include <memory.h> 51 #include <locale.h> 52 #include <sys/mman.h> 53 #include "sgs.h" 54 #include "gelf.h" 55 56 #define FORMAT "%-16s%-12ld%-6u%-6u%-8o%-10ld%-2s" 57 #define ROUNDUP(x) (((x) + 1) & ~1) 58 #define TMPDIR "/tmp" 59 60 #define DELETED -1 /* The section will be removed */ 61 #define NULLED -2 /* The section will be nulled */ 62 #define EXPANDED -3 /* The size of the section expanded */ 63 #define SHRUNK -4 /* The section shrinked */ 64 65 #define ACT_NOP 0x00000000 66 #define ACT_DELETE 0x00000001 67 #define ACT_PRINT 0x00000002 68 #define ACT_COMPRESS 0x00000003 69 #define ACT_APPEND 0x00000004 70 #define ACT_ZAP 0x00000005 71 #define SET_ACTION(x, y) x = (x & 0xfffffff0) | y 72 #define GET_ACTION(x) (x & 0x0000000f) 73 74 #define NOSEG 0x00000010 75 #define IN 0x00000020 /* section is IN a segment */ 76 #define PRIOR 0x00000030 /* section is PRIOR to a segment */ 77 #define AFTER 0x00000040 /* section is AFTER a segment */ 78 #define SET_LOC(x, y) x = (x & 0xffffff0f) | y 79 #define GET_LOC(x) (x & 0x000000f0) 80 81 #define CANDIDATE 0x00000100 82 #define MOVING 0x00000200 83 #define MODIFIED 0x00000400 84 85 #define UNSET_CANDIDATE(x) x = x & ~CANDIDATE 86 #define SET_CANDIDATE(x) x = x | CANDIDATE 87 #define ISCANDIDATE(x) (x & CANDIDATE) 88 #define SET_MOVING(x) x = (x | MOVING) 89 #define GET_MOVING(x) (x & MOVING) 90 #define SET_MODIFIED(x) x = (x | MODIFIED) 91 #define GET_MODIFIED(x) (x & MODIFIED) 92 93 #define FAILURE 1 94 #define SUCCESS 0 95 96 #define DONT_BUILD 3 /* this code is used to prevent building a new file */ 97 /* because mcs was given only -p */ 98 99 100 #define MCS 1 101 #define STRIP 2 102 #define STR_STRIP "strip" 103 104 /* 105 * Structure to hold section information. 106 */ 107 typedef struct section_info_table { 108 /* 109 * Section information. 110 */ 111 Elf_Scn *scn; /* Section */ 112 Elf_Data *data; /* Original data */ 113 Elf_Data *mdata; /* Modified data */ 114 char *name; /* Section name, or NULL if unknown */ 115 char *rel_name; 116 GElf_Shdr shdr; 117 GElf_Word secno; /* The new index */ 118 GElf_Word osecno; /* The original index */ 119 GElf_Word rel_scn_index; 120 GElf_Xword si_flags; 121 GElf_Xword rel_loc; 122 } section_info_table; 123 124 /* 125 * Structure to hold action information 126 */ 127 typedef struct action { 128 int a_action; /* Which action to take ? */ 129 int a_cnt; /* Am I applied ? */ 130 char *a_string; /* The string to be added. */ 131 } action; 132 133 /* 134 * Structure to hold the section names specified. 135 */ 136 typedef struct s_name { 137 char *name; 138 struct s_name *next; 139 unsigned char flags; 140 } S_Name; 141 #define SECT_NAME sect_head->name 142 #define SNAME_FLG_STRNCMP 0x01 /* Use strncmp() instead of strcmp() */ 143 /* for section name comparison. */ 144 145 /* 146 * Structure to hold command information 147 */ 148 typedef struct cmd_info { 149 APlist *sh_groups; /* list of SHT_GROUP sections */ 150 int no_of_append; 151 int no_of_delete; 152 int no_of_nulled; 153 int no_of_compressed; 154 int no_of_moved; 155 size_t str_size; /* size of string to be appended */ 156 int ci_flags; /* Various flags */ 157 } Cmd_Info; 158 159 #define MIGHT_CHG 0x0001 160 #define aFLAG 0x0002 161 #define cFLAG 0x0004 162 #define dFLAG 0x0008 163 #define lFLAG 0x0010 164 #define pFLAG 0x0020 165 #define xFLAG 0x0040 166 #define VFLAG 0x0080 167 #define zFLAG 0x0100 168 #define I_AM_STRIP 0x0200 169 #define SHF_GROUP_MOVE 0x0400 /* SHF_GROUP section moves */ 170 #define SHF_GROUP_DEL 0x0800 /* SHF_GROUP section deleted */ 171 172 #define CHK_OPT(_x, _y) (((_x)->ci_flags & (_y)) != 0) 173 #define SET_OPT(_x, _y) ((_x)->ci_flags |= (_y)) 174 175 /* 176 * Segment Table 177 */ 178 typedef struct seg_table { 179 GElf_Off p_offset; 180 GElf_Xword p_memsz; 181 GElf_Xword p_filesz; 182 } Seg_Table; 183 184 /* 185 * Temporary files 186 */ 187 typedef struct { 188 const char *tmp_name; /* NULL, or name of temp file */ 189 int tmp_unlink; /* True if should unlink prior to exit */ 190 } Tmp_File; 191 192 /* 193 * Function prototypes. 194 */ 195 int apply_action(section_info_table *, char *, Cmd_Info *); 196 int each_file(char *, Cmd_Info *); 197 void error_message(int, ...); 198 void mcs_exit(int); 199 int sectcmp(char *); 200 void free_tempfile(Tmp_File *); 201 202 /* 203 * Error messages 204 */ 205 #define MALLOC_ERROR 0 206 #define USAGE_ERROR 1 207 #define ELFVER_ERROR 2 208 #define OPEN_ERROR 3 209 #define LIBELF_ERROR 4 210 #define OPEN_TEMP_ERROR 5 211 #define WRITE_ERROR 6 212 #define GETARHDR_ERROR 7 213 #define FILE_TYPE_ERROR 8 214 #define NOT_MANIPULATED_ERROR 9 215 #define WRN_MANIPULATED_ERROR 10 216 #define NO_SECT_TABLE_ERROR 11 217 #define READ_ERROR 12 218 #define READ_MANI_ERROR 13 219 #define WRITE_MANI_ERROR 14 220 #define LSEEK_MANI_ERROR 15 221 #define SYM_TAB_AR_ERROR 16 222 #define EXEC_AR_ERROR 17 223 #define READ_SYS_ERROR 18 224 #define OPEN_WRITE_ERROR 19 225 #define ACT_PRINT_ERROR 20 226 #define ACT_DELETE1_ERROR 21 227 #define ACT_DELETE2_ERROR 22 228 #define ACT_APPEND1_ERROR 23 229 #define ACT_APPEND2_ERROR 24 230 #define ACT_COMPRESS1_ERROR 25 231 #define ACT_COMPRESS2_ERROR 26 232 #define ACCESS_ERROR 27 233 #define WRITE_MANI_ERROR2 28 234 235 #define PLAIN_ERROR 0 236 #define LIBelf_ERROR 1 237 #define SYSTEM_ERROR 2 238 239 #ifdef __cplusplus 240 } 241 #endif 242 243 #endif /* _MCS_H */ 244