512a0200de
All the kernel header files now use pargma once rather than the ifndef, as the pre-processed C files do not change while header files are protected with pargma once. This will also solve any naming issues caused by ifndef.
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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* Copyright 2020, Data61, CSIRO (ABN 41 687 119 230)
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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/**
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* Declares macros and methods for sel4 specific assert and fail.
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*
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* These are unconditional, there are conditional versions of
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* these in debug_assert.h and are name seL4_DebugAssert and
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* sl4_DebugCompileTimeAsssert.
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*/
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#pragma once
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/**
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* Hidden function, use the macros seL4_Fail or seL4_Assert.
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*/
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void __assert_fail(const char *str, const char *file, int line, const char *function);
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/**
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* If expr evaluates to false _seL4_Fail is called with the
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* expr as a string plus the file, line and function.
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*/
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#define seL4_Fail(s) __assert_fail(s, __FILE__, __LINE__, __func__)
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/**
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* If expr evaluates to false _seL4_AssertFail is called with the
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* expr as a string plus the file, line and function.
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*/
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#define seL4_Assert(expr) \
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do { if (!(expr)) { __assert_fail(#expr, __FILE__, __LINE__, __FUNCTION__); } } while(0)
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/**
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* An assert that tests that the expr is a compile time constant and
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* evaluates to true.
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*
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* This code is similar to compile_time_assert in libutils/include/utils/compile_time.h,
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* we may want to have only one. Also, using __COUNTER__ its not necessary to have name
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* for uniqueness so I've removed it, although maybe there is another reason for it, like
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* some compilers don't support __COUNTER__.
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*/
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#define seL4_CompileTimeAssert(expr) \
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extern char __seL4_CompileTimeAssertFailed_ ## __COUNTER__[__builtin_constant_p(expr) ? ((expr) ? 1 : -1) : -1] __attribute__((unused))
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