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[core/loader] prevent program_image reallocations in NSO+KIP loading methods (#3639)

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also changes some methods to std::span<> as well, but mainly std::vector<> in the NSO/KIP loading stuff is not needed to be memcpy'ed and memmove'd around
this should save a marginal amount of loading time (RDR1)

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3639
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: Maufeat <sahyno1996@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>
This commit is contained in:
lizzie 2026-02-28 01:06:33 +01:00 • committed by crueter
parent f8712e50e6
commit 06a08de68a
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GPG key ID: 425ACD2D4830EBC6
18 changed files with 122 additions and 212 deletions
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9
src/core/file_sys/kernel_executable.cpp
View file

@ -1,3 +1,6 @@
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@ -160,15 +163,15 @@ u32 KIP::GetMainThreadCpuCore() const {
return header.default_core;
}
const std::vector<u8>& KIP::GetTextSection() const {
std::span<const u8> KIP::GetTextSection() const {
return decompressed_sections[0];
}
const std::vector<u8>& KIP::GetRODataSection() const {
std::span<const u8> KIP::GetRODataSection() const {
return decompressed_sections[1];
}
const std::vector<u8>& KIP::GetDataSection() const {
std::span<const u8> KIP::GetDataSection() const {
return decompressed_sections[2];
}

10
src/core/file_sys/kernel_executable.h
View file

@ -1,9 +1,13 @@
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <array>
#include <span>
#include <string>
#include <vector>
@ -70,9 +74,9 @@ public:
u32 GetMainThreadStackSize() const;
u32 GetMainThreadCpuCore() const;
const std::vector<u8>& GetTextSection() const;
const std::vector<u8>& GetRODataSection() const;
const std::vector<u8>& GetDataSection() const;
std::span<const u8> GetTextSection() const;
std::span<const u8> GetRODataSection() const;
std::span<const u8> GetDataSection() const;
u32 GetTextOffset() const;
u32 GetRODataOffset() const;