mirror of
https://review.coreboot.org/flashrom.git
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36f87376a3
The changes to hwaccess in commit 49d758698a
cause build failure on non-x86 systems because the hwaccess_x86_*
headers are included in some files that are built for all platforms
(particularly those in the internal programmer) and those headers in
turn include <sys/io.h> which only exists on x86.
This change avoids including those headers on non-x86 platforms so
the internal programmer can be built without errors.
The comment on the stub implementation of rget_io_perms() is also
modified to remove references to non-x86 platforms, since that file is
only built on x86 now.
BUG=None
TEST=meson build succeeds for both x86 and ARM targets
Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Change-Id: I20f122679c30340b2c73afd7419e79644ddc3c4e
Reviewed-on: https://review.coreboot.org/c/flashrom/+/61194
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Thomas Heijligen <src@posteo.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2009,2010 Carl-Daniel Hailfinger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <errno.h>
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#include <string.h>
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#if !defined (__DJGPP__) && !defined(__LIBPAYLOAD__)
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/* No file access needed/possible to get hardware access permissions. */
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#include <unistd.h>
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#include <fcntl.h>
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#endif
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#include "hwaccess_x86_io.h"
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#include "flash.h"
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#if USE_IOPERM
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#include <sys/io.h>
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#endif
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#if USE_DEV_IO
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int io_fd;
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#endif
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#if !(defined(__DJGPP__) || defined(__LIBPAYLOAD__))
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static int release_io_perms(void *p)
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{
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#if defined (__sun)
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sysi86(SI86V86, V86SC_IOPL, 0);
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#elif USE_DEV_IO
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close(io_fd);
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#elif USE_IOPERM
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ioperm(0, 65536, 0);
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#elif USE_IOPL
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iopl(0);
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#endif
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return 0;
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}
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/* Get I/O permissions with automatic permission release on shutdown. */
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int rget_io_perms(void)
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{
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#if defined (__sun)
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if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) != 0) {
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#elif USE_DEV_IO
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if ((io_fd = open("/dev/io", O_RDWR)) < 0) {
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#elif USE_IOPERM
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if (ioperm(0, 65536, 1) != 0) {
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#elif USE_IOPL
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if (iopl(3) != 0) {
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#endif
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msg_perr("ERROR: Could not get I/O privileges (%s).\n", strerror(errno));
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msg_perr("You need to be root.\n");
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#if defined (__OpenBSD__)
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msg_perr("If you are root already please set securelevel=-1 in /etc/rc.securelevel and\n"
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"reboot, or reboot into single user mode.\n");
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#elif defined(__NetBSD__)
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msg_perr("If you are root already please reboot into single user mode or make sure\n"
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"that your kernel configuration has the option INSECURE enabled.\n");
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#endif
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return 1;
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} else {
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register_shutdown(release_io_perms, NULL);
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}
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return 0;
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}
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#else
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/* DJGPP and libpayload environments have full PCI port I/O permissions by default. */
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int rget_io_perms(void)
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{
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return 0;
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}
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#endif
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