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authorbunnei <bunneidev@gmail.com>2021-02-12 03:55:22 +0100
committerbunnei <bunneidev@gmail.com>2021-02-19 01:16:24 +0100
commitf7a008d77f8aa47baf4c874c508b38af4965a145 (patch)
tree3a11b865d5f49be8fa0588ee5187f1b6c12022fb /src/core/hle/kernel/memory
parenthle: kernel: memory: PageHeap: Migrate to KPageBitmap class. (diff)
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Diffstat (limited to 'src/core/hle/kernel/memory')
-rw-r--r--src/core/hle/kernel/memory/page_table.cpp11
-rw-r--r--src/core/hle/kernel/memory/system_control.cpp41
-rw-r--r--src/core/hle/kernel/memory/system_control.h14
3 files changed, 6 insertions, 60 deletions
diff --git a/src/core/hle/kernel/memory/page_table.cpp b/src/core/hle/kernel/memory/page_table.cpp
index 00ed9b881..034d43ecd 100644
--- a/src/core/hle/kernel/memory/page_table.cpp
+++ b/src/core/hle/kernel/memory/page_table.cpp
@@ -6,14 +6,15 @@
#include "common/assert.h"
#include "common/scope_exit.h"
#include "core/core.h"
+#include "core/hle/kernel/k_resource_limit.h"
#include "core/hle/kernel/k_scoped_resource_reservation.h"
+#include "core/hle/kernel/k_system_control.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/address_space_info.h"
#include "core/hle/kernel/memory/memory_block.h"
#include "core/hle/kernel/memory/memory_block_manager.h"
#include "core/hle/kernel/memory/page_linked_list.h"
#include "core/hle/kernel/memory/page_table.h"
-#include "core/hle/kernel/memory/system_control.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/svc_results.h"
#include "core/memory.h"
@@ -149,13 +150,13 @@ ResultCode PageTable::InitializeForProcess(FileSys::ProgramAddressSpaceType as_t
// Determine random placements for each region
std::size_t alias_rnd{}, heap_rnd{}, stack_rnd{}, kmap_rnd{};
if (enable_aslr) {
- alias_rnd = SystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) *
+ alias_rnd = KSystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) *
RegionAlignment;
- heap_rnd = SystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) *
+ heap_rnd = KSystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) *
RegionAlignment;
- stack_rnd = SystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) *
+ stack_rnd = KSystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) *
RegionAlignment;
- kmap_rnd = SystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) *
+ kmap_rnd = KSystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) *
RegionAlignment;
}
diff --git a/src/core/hle/kernel/memory/system_control.cpp b/src/core/hle/kernel/memory/system_control.cpp
deleted file mode 100644
index e855696ad..000000000
--- a/src/core/hle/kernel/memory/system_control.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright 2020 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <random>
-
-#include "core/hle/kernel/memory/system_control.h"
-
-namespace Kernel::Memory::SystemControl {
-namespace {
-template <typename F>
-u64 GenerateUniformRange(u64 min, u64 max, F f) {
- // Handle the case where the difference is too large to represent.
- if (max == std::numeric_limits<u64>::max() && min == std::numeric_limits<u64>::min()) {
- return f();
- }
-
- // Iterate until we get a value in range.
- const u64 range_size = ((max + 1) - min);
- const u64 effective_max = (std::numeric_limits<u64>::max() / range_size) * range_size;
- while (true) {
- if (const u64 rnd = f(); rnd < effective_max) {
- return min + (rnd % range_size);
- }
- }
-}
-
-} // Anonymous namespace
-
-u64 GenerateRandomU64() {
- static std::random_device device;
- static std::mt19937 gen(device());
- static std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
- return distribution(gen);
-}
-
-u64 GenerateRandomRange(u64 min, u64 max) {
- return GenerateUniformRange(min, max, GenerateRandomU64);
-}
-
-} // namespace Kernel::Memory::SystemControl
diff --git a/src/core/hle/kernel/memory/system_control.h b/src/core/hle/kernel/memory/system_control.h
deleted file mode 100644
index a01b6b014..000000000
--- a/src/core/hle/kernel/memory/system_control.h
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2020 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include "common/common_types.h"
-
-namespace Kernel::Memory::SystemControl {
-
-u64 GenerateRandomRange(u64 min, u64 max);
-u64 GenerateRandomU64();
-
-} // namespace Kernel::Memory::SystemControl