coreboot/src/lib/boot_device.c
Aaron Durbin 6403167d29 compiler.h: add __weak macro
Instead of writing out '__attribute__((weak))' use a shorter form.

Change-Id: If418a1d55052780077febd2d8f2089021f414b91
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/25767
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
2018-04-24 14:37:59 +00:00

50 lines
1.4 KiB
C

/*
* This file is part of the coreboot project.
*
* Copyright 2015 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <boot_device.h>
#include <compiler.h>
void __weak boot_device_init(void)
{
/* Provide weak do-nothing init. */
}
static int boot_device_subregion(const struct region *sub,
struct region_device *subrd,
const struct region_device *parent)
{
if (parent == NULL)
return -1;
return rdev_chain(subrd, parent, region_offset(sub), region_sz(sub));
}
int boot_device_ro_subregion(const struct region *sub,
struct region_device *subrd)
{
/* Ensure boot device has been initialized at least once. */
boot_device_init();
return boot_device_subregion(sub, subrd, boot_device_ro());
}
int boot_device_rw_subregion(const struct region *sub,
struct region_device *subrd)
{
/* Ensure boot device has been initialized at least once. */
boot_device_init();
return boot_device_subregion(sub, subrd, boot_device_rw());
}