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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 coresystems GmbH
*
* 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.
*/
#ifndef __ASSERT_H__
#define __ASSERT_H__
#include <arch/hlt.h>
#include <console/console.h>
/* TODO: Fix vendorcode headers to not define macros coreboot uses or to be more
properly isolated. */
#ifdef ASSERT
#undef ASSERT
#endif
/* GCC and CAR versions */
#define ASSERT(x) { \
if (!(x)) { \
printk(BIOS_EMERG, "ASSERTION ERROR: file '%s'" \
", line %d\n", __FILE__, __LINE__); \
if (CONFIG(FATAL_ASSERTS)) \
hlt(); \
} \
}
#define BUG() { \
printk(BIOS_EMERG, "ERROR: BUG ENCOUNTERED at file '%s'"\
", line %d\n", __FILE__, __LINE__); \
if (CONFIG(FATAL_ASSERTS)) \
hlt(); \
}
#define assert(statement) ASSERT(statement)
/*
* These macros can be used to assert that a certain branch of code is dead and
* will be compile-time eliminated. This differs from _Static_assert(), which
* will generate a compiler error even if the scope it was called from is dead
* code. This may be useful to double-check things like constants that are only
* valid if a certain Kconfig option is set.
*
* The error message when this hits will look like this:
*
* ramstage/lib/bootmode.o: In function `display_init_required':
* bootmode.c:42: undefined reference to `dead_code_assertion_failed_at_line_42'
*/
#define __dead_code(line) do { \
extern void dead_code_assertion_failed_at_line_##line(void) \
__attribute__((noreturn)); \
dead_code_assertion_failed_at_line_##line(); \
} while (0)
#define _dead_code(line) __dead_code(line)
#define dead_code() _dead_code(__LINE__)
/* This can be used in the context of an expression of type 'type'. */
#define dead_code_t(type) ({ \
dead_code(); \
*(type *)(uintptr_t)0; \
})
#endif // __ASSERT_H__
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