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AK: Print VERIFY() error messages in release builds

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Until now, VERIFY() failures would just cause a __builtin_trap() in
release builds, which made them a bit too harsh. This commit adds an
out-of-line helper function that prints the error before trapping.
This commit is contained in:
Andreas Kling 2022-10-06 13:35:46 +02:00
parent 4fdfaff4ca
commit da781e90c1
Notes: sideshowbarker 2024-07-17 06:19:24 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/da781e90c1
2 changed files with 26 additions and 3 deletions
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20
AK/Assertions.cpp Normal file
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@ -0,0 +1,20 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Assertions.h>
#include <AK/Format.h>
#if !defined(KERNEL) && defined(NDEBUG)
extern "C" {
void ak_verification_failed(char const* message)
{
dbgln("VERIFICATION FAILED: {}", message);
__builtin_trap();
}
}
#endif

9
AK/Assertions.h
View file

@ -13,9 +13,12 @@
# ifndef NDEBUG
# define VERIFY assert
# else
# define VERIFY(expr) \
(__builtin_expect(!(expr), 0) \
? __builtin_trap() \
# define __stringify_helper(x) # x
# define __stringify(x) __stringify_helper(x)
extern "C" __attribute__((noreturn)) void ak_verification_failed(char const*);
# define VERIFY(expr) \
(__builtin_expect(!(expr), 0) \
? ak_verification_failed(#expr "\n" __FILE__ ":" __stringify(__LINE__)) \
: (void)0)
# endif
# define VERIFY_NOT_REACHED() VERIFY(false) /* NOLINT(cert-dcl03-c,misc-static-assert) No, this can't be static_assert, it's a runtime check */