a6ae90983e
Some notable improvements include: readelf: - Add AArch64 relocation definitions. - Report value of unknown relocation types. elfcopy: - Consider symbols with STB_GNU_UNIQUE binding as global symbols. - Fixed support for VMA adjustment for loadable sections found in relocatable objects. - Handle nameless global symbols. - Improve wildcard matching for !-prefixed symbols. - Add PE/COFF support. elfdump: - Improve section type reporting. - Add MIPS-specific section types. This update also includes a significant number of bug fixes. PR: 207091 [exp-run] Sponsored by: The FreeBSD Foundation
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/*-
|
|
* Copyright (c) 2016 Kai Wang
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
|
|
#include "_libpe.h"
|
|
|
|
ELFTC_VCSID("$Id: pe_symtab.c 3312 2016-01-10 09:23:51Z kaiwang27 $");
|
|
|
|
int
|
|
pe_update_symtab(PE *pe, char *symtab, size_t sz, unsigned int nsym)
|
|
{
|
|
PE_Scn *ps;
|
|
PE_SecBuf *sb;
|
|
PE_SecHdr *sh;
|
|
|
|
if (pe == NULL || symtab == NULL || sz == 0) {
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
|
|
if (pe->pe_cmd == PE_C_READ || pe->pe_flags & LIBPE_F_FD_DONE) {
|
|
errno = EACCES;
|
|
return (-1);
|
|
}
|
|
|
|
/* Remove the old symbol table. */
|
|
STAILQ_FOREACH(ps, &pe->pe_scn, ps_next) {
|
|
if (ps->ps_ndx == 0xFFFFFFFFU)
|
|
libpe_release_scn(ps);
|
|
}
|
|
|
|
/*
|
|
* Insert the new symbol table.
|
|
*/
|
|
|
|
if ((ps = libpe_alloc_scn(pe)) == NULL)
|
|
return (-1);
|
|
|
|
STAILQ_INSERT_TAIL(&pe->pe_scn, ps, ps_next);
|
|
ps->ps_ndx = 0xFFFFFFFFU;
|
|
ps->ps_flags |= PE_F_DIRTY;
|
|
|
|
/*
|
|
* Set the symbol table section offset to the maximum to make sure
|
|
* that it will be placed in the end of the file during section
|
|
* layout.
|
|
*/
|
|
sh = &ps->ps_sh;
|
|
sh->sh_rawptr = 0xFFFFFFFFU;
|
|
sh->sh_rawsize = sz;
|
|
|
|
/* Allocate the buffer. */
|
|
if ((sb = libpe_alloc_buffer(ps, 0)) == NULL)
|
|
return (-1);
|
|
sb->sb_flags |= PE_F_DIRTY;
|
|
sb->sb_pb.pb_size = sz;
|
|
sb->sb_pb.pb_buf = symtab;
|
|
|
|
pe->pe_nsym = nsym;
|
|
|
|
return (0);
|
|
}
|