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Kernel: Change static constexpr variables to constexpr where possible

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Function-local `static constexpr` variables can be `constexpr`. This
can reduce memory consumption, binary size, and offer additional
compiler optimizations.

These changes result in a stripped x86_64 kernel binary size reduction
of 592 bytes.
This commit is contained in:
Lenny Maiorani 2022-02-09 11:33:39 -07:00 • committed by Linus Groh
parent 6a4c8a66ae
commit c6acf64558
11 changed files with 26 additions and 15 deletions
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3
Kernel/Arch/x86/common/Processor.cpp
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -514,7 +515,7 @@ ErrorOr<Vector<FlatPtr, 32>> Processor::capture_stack_trace(Thread& thread, size
Vector<FlatPtr, 32> stack_trace;
auto walk_stack = [&](FlatPtr stack_ptr) -> ErrorOr<void> {
static constexpr size_t max_stack_frames = 4096;
constexpr size_t max_stack_frames = 4096;
bool is_walking_userspace_stack = false;
TRY(stack_trace.try_append(ip));
size_t count = 1;