freebsd-dev/contrib/elftoolchain/libpe/pe_coff.c
Ed Maste 839529caa9 Update ELF Tool Chain to upstream rev 3400
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
2016-02-12 20:54:02 +00:00

158 lines
3.3 KiB
C

/*-
* Copyright (c) 2015 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 <stdlib.h>
#include <string.h>
#include "_libpe.h"
ELFTC_VCSID("$Id: pe_coff.c 3312 2016-01-10 09:23:51Z kaiwang27 $");
PE_CoffHdr *
pe_coff_header(PE *pe)
{
if (pe->pe_ch == NULL) {
errno = ENOENT;
return (NULL);
}
return (pe->pe_ch);
}
PE_OptHdr *
pe_opt_header(PE *pe)
{
if (pe->pe_oh == NULL) {
errno = ENOENT;
return (NULL);
}
return (pe->pe_oh);
}
PE_DataDir *
pe_data_dir(PE *pe)
{
if (pe->pe_dd == NULL) {
errno = ENOENT;
return (NULL);
}
return (pe->pe_dd);
}
int
pe_update_coff_header(PE *pe, PE_CoffHdr *ch)
{
if (pe == NULL || ch == NULL) {
errno = EINVAL;
return (-1);
}
if (pe->pe_cmd == PE_C_READ || pe->pe_flags & LIBPE_F_FD_DONE) {
errno = EACCES;
return (-1);
}
if (pe->pe_ch == NULL) {
if ((pe->pe_ch = malloc(sizeof(PE_CoffHdr))) == NULL) {
errno = ENOMEM;
return (-1);
}
} else {
/* Rewrite optional header if `optsize' field changed. */
if (pe->pe_ch->ch_optsize != ch->ch_optsize)
pe->pe_flags |= LIBPE_F_DIRTY_OPT_HEADER;
}
*pe->pe_ch = *ch;
pe->pe_flags |= LIBPE_F_DIRTY_COFF_HEADER;
return (0);
}
int
pe_update_opt_header(PE *pe, PE_OptHdr *oh)
{
if (pe == NULL || oh == NULL) {
errno = EINVAL;
return (-1);
}
if (pe->pe_cmd == PE_C_READ || pe->pe_flags & LIBPE_F_FD_DONE) {
errno = EACCES;
return (-1);
}
if (pe->pe_oh == NULL) {
if ((pe->pe_oh = malloc(sizeof(PE_OptHdr))) == NULL) {
errno = ENOMEM;
return (-1);
}
}
*pe->pe_oh = *oh;
pe->pe_flags |= LIBPE_F_DIRTY_OPT_HEADER;
return (0);
}
int
pe_update_data_dir(PE *pe, PE_DataDir *dd)
{
if (pe == NULL || dd == NULL) {
errno = EINVAL;
return (-1);
}
if (pe->pe_cmd == PE_C_READ || pe->pe_flags & LIBPE_F_FD_DONE) {
errno = EACCES;
return (-1);
}
if (pe->pe_dd == NULL) {
if ((pe->pe_dd = malloc(sizeof(PE_DataDir))) == NULL) {
errno = ENOMEM;
return (-1);
}
}
*pe->pe_dd = *dd;
pe->pe_flags |= LIBPE_F_DIRTY_OPT_HEADER;
return (0);
}