7c45c8363d
When dead_code() is used in inline functions in a header file, the generated function names (based on the line number) may collide with a dead_code() in the code file. Now that we are hit by such a case, we need a quick solution: Add a tag argument for all invocations in header files. Change-Id: I0c548ce998cf8e28ae9f76b5c0ea5630b4e91ae2 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40140 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
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* This file is part of the coreboot project.
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of the License.
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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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#ifndef __ASSERT_H__
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#define __ASSERT_H__
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#include <arch/hlt.h>
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#include <console/console.h>
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/* TODO: Fix vendorcode headers to not define macros coreboot uses or to be more
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properly isolated. */
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#ifdef ASSERT
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#undef ASSERT
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#endif
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/* GCC and CAR versions */
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#define ASSERT(x) { \
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if (!(x)) { \
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printk(BIOS_EMERG, "ASSERTION ERROR: file '%s'" \
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", line %d\n", __FILE__, __LINE__); \
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if (CONFIG(FATAL_ASSERTS)) \
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hlt(); \
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} \
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}
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#define ASSERT_MSG(x, msg) { \
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if (!(x)) { \
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printk(BIOS_EMERG, "ASSERTION ERROR: file '%s'" \
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", line %d\n", __FILE__, __LINE__); \
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printk(BIOS_EMERG, "%s", msg); \
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if (CONFIG(FATAL_ASSERTS)) \
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hlt(); \
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} \
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}
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#define BUG() { \
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printk(BIOS_EMERG, "ERROR: BUG ENCOUNTERED at file '%s'"\
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", line %d\n", __FILE__, __LINE__); \
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if (CONFIG(FATAL_ASSERTS)) \
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hlt(); \
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}
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#define assert(statement) ASSERT(statement)
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/*
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* These macros can be used to assert that a certain branch of code is dead and
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* will be compile-time eliminated. This differs from _Static_assert(), which
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* will generate a compiler error even if the scope it was called from is dead
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* code. This may be useful to double-check things like constants that are only
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* valid if a certain Kconfig option is set.
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*
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* The error message when this hits will look like this:
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*
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* ramstage/lib/bootmode.o: In function `display_init_required':
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* bootmode.c:42: undefined reference to `dead_code_assertion_failed_at_line_42'
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*/
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#define __dead_code(tag, line) do { \
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extern void dead_code_assertion_failed##tag##_at_line_##line(void) \
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__attribute__((noreturn)); \
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dead_code_assertion_failed##tag##_at_line_##line(); \
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} while (0)
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#define _dead_code(tag, line) __dead_code(tag, line)
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#define dead_code(tag) _dead_code(tag, __LINE__)
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/* This can be used in the context of an expression of type 'type'. */
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#define dead_code_t(type) ({ \
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dead_code(); \
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*(type *)(uintptr_t)0; \
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})
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#endif // __ASSERT_H__
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