ae500c1ff8
Highlights: - Make sure that only TLS sections are sorted into TLS segment. - Fixed multiple errors in "Section to Segment mapping". - Man page updates - ar improvements - elfcopy: avoid filter_reloc uninitialized variable for rela - elfcopy: avoid stripping relocations from static binaries - readelf: avoid printing directory in front of absolute path - readelf: add NT_FREEBSD_FEATURE_CTL FreeBSD note type - test improvements NOTES: Some of these changes originated in FreeBSD and simply reduce diffs between contrib and vendor. ELF Tool Chain ar is not (currently) used in FreeBSD, and there are improvements in both FreeBSD and ELF Tool Chain ar that are not in the other. Sponsored by: The FreeBSD Foundation
144 lines
4.8 KiB
C
144 lines
4.8 KiB
C
/*-
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* Copyright (c) 2007 Kai Wang
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: ar.h 3629 2018-09-30 19:26:28Z jkoshy $
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*/
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#include <libelf.h>
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#include "_elftc.h"
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/*
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* ar(1) options.
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*/
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#define AR_A 0x0001 /* position-after */
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#define AR_B 0x0002 /* position-before */
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#define AR_C 0x0004 /* creating new archive */
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#define AR_CC 0x0008 /* do not overwrite when extracting */
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#define AR_J 0x0010 /* bzip2 compression */
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#define AR_O 0x0020 /* preserve original mtime when extracting */
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#define AR_S 0x0040 /* write archive symbol table */
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#define AR_SS 0x0080 /* do not write archive symbol table */
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#define AR_TR 0x0100 /* only keep first 15 chars for member name */
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#define AR_U 0x0200 /* only extract or update newer members.*/
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#define AR_V 0x0400 /* verbose mode */
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#define AR_Z 0x0800 /* gzip compression */
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#define AR_D 0x1000 /* insert dummy mode, mtime, uid and gid */
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#define AR_BSD 0x2000 /* use the BSD archive format */
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#define DEF_BLKSZ 10240 /* default block size */
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/* Special names. */
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#define AR_STRINGTAB_NAME_SVR4 "//"
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#define AR_SYMTAB_NAME_BSD "__.SYMDEF"
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#define AR_SYMTAB_NAME_SVR4 "/"
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/*
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* Convenient wrapper for general libarchive error handling.
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*/
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#define AC(CALL) do { \
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if ((CALL)) \
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bsdar_errc(bsdar, 0, "%s", \
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archive_error_string(a)); \
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} while (0)
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/*
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* The 'ACV' wrapper is used for libarchive APIs that changed from
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* returning 'void' to returning an 'int' in later versions of libarchive.
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*/
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#if ARCHIVE_VERSION_NUMBER >= 2000000
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#define ACV(CALL) AC(CALL)
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#else
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#define ACV(CALL) do { \
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(CALL); \
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} while (0)
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#endif
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/*
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* In-memory representation of archive member(object).
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*/
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struct ar_obj {
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Elf *elf; /* object file descriptor */
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char *name; /* member name */
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uid_t uid; /* user id */
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gid_t gid; /* group id */
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mode_t md; /* octal file permissions */
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size_t size; /* member size */
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time_t mtime; /* modification time */
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dev_t dev; /* inode's device */
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ino_t ino; /* inode's number */
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TAILQ_ENTRY(ar_obj) objs;
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};
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/*
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* Structure encapsulates the "global" data for "ar" program.
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*/
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struct bsdar {
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const char *filename; /* archive name. */
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const char *addlib; /* target of ADDLIB. */
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const char *posarg; /* position arg for modifiers -a, -b. */
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char mode; /* program mode */
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int options; /* command line options */
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FILE *output; /* default output stream */
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const char *progname; /* program name */
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int argc;
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char **argv;
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dev_t ar_dev; /* archive device. */
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ino_t ar_ino; /* archive inode. */
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/*
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* Fields for the archive string table.
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*/
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char *as; /* buffer for archive string table. */
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size_t as_sz; /* current size of as table. */
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size_t as_cap; /* capacity of as table buffer. */
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/*
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* Fields for the archive symbol table.
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*/
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uint32_t s_cnt; /* current number of symbols. */
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uint32_t *s_so; /* symbol offset table. */
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size_t s_so_cap; /* capacity of so table buffer. */
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char *s_sn; /* symbol name table */
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size_t s_sn_cap; /* capacity of sn table buffer. */
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size_t s_sn_sz; /* current size of sn table. */
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/* Current member's offset (relative to the end of pseudo members.) */
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off_t rela_off;
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TAILQ_HEAD(, ar_obj) v_obj; /* object(member) list */
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};
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void ar_mode_script(struct bsdar *ar);
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int ar_read_archive(struct bsdar *_ar, int _mode);
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int ar_write_archive(struct bsdar *_ar, int _mode);
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void bsdar_errc(struct bsdar *, int _code, const char *fmt, ...);
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int bsdar_is_pseudomember(struct bsdar *_ar, const char *_name);
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const char *bsdar_strmode(mode_t m);
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void bsdar_warnc(struct bsdar *, int _code, const char *fmt, ...);
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