mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-09-19 22:59:00 +00:00
kern: implement uart init + logging
This commit is contained in:
Michael Scire
parent
323858cf96
commit
5961151a92
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@ -29,7 +29,7 @@
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/* Core pre-initialization includes. */
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#include <mesosphere/kern_select_cpu.hpp>
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#include <mesosphere/kern_select_k_system_control.hpp>
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#include <mesosphere/kern_select_system_control.hpp>
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/* Initialization headers. */
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#include <mesosphere/init/kern_init_elf.hpp>
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@ -36,6 +36,9 @@ namespace ams::kern {
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static u64 GenerateRandomRange(u64 min, u64 max);
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};
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public:
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/* Initialization. */
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static NOINLINE void Initialize();
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/* Randomness. */
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static void GenerateRandomBytes(void *dst, size_t size);
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static u64 GenerateRandomRange(u64 min, u64 max);
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@ -23,3 +23,12 @@ namespace ams::kern {
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constexpr size_t PageSize = 4_KB;
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}
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#ifdef MESOSPHERE_BUILD_FOR_AUDITING
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#define MESOSPHERE_BUILD_FOR_DEBUGGING
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#endif
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#ifdef MESOSPHERE_BUILD_FOR_DEBUGGING
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#define MESOSPHERE_ENABLE_ASSERTIONS
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#define MESOSPHERE_ENABLE_DEBUG_PRINT
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#endif
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@ -0,0 +1,54 @@
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/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <mesosphere/kern_common.hpp>
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namespace ams::kern {
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class KDebugLog {
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private:
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static NOINLINE void VSNPrintf(char *dst, const size_t dst_size, const char *format, ::std::va_list vl);
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public:
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static NOINLINE void Initialize();
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static NOINLINE void Printf(const char *format, ...);
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static NOINLINE void VPrintf(const char *format, ::std::va_list vl);
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};
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}
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#ifndef MESOSPHERE_DEBUG_LOG_SELECTED
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#ifdef ATMOSPHERE_BOARD_NINTENDO_SWITCH
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#define MESOSPHERE_DEBUG_LOG_USE_UART_A
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#else
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#error "Unknown board for Default Debug Log Source"
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#endif
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#define MESOSPHERE_DEBUG_LOG_SELECTED
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#endif
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#define MESOSPHERE_RELEASE_LOG(fmt, ...) ::ams::kern::KDebugLog::Printf((fmt), ## __VA_ARGS__)
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#define MESOSPHERE_RELEASE_VLOG(fmt, vl) ::ams::kern::KDebugLog::VPrintf((fmt), (vl))
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#ifdef MESOSPHERE_ENABLE_DEBUG_PRINT
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#define MESOSPHERE_LOG(fmt, ...) MESOSPHERE_RELEASE_LOG((fmt), ## __VA_ARGS__)
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#define MESOSPHERE_VLOG(fmt, vl) MESOSPHERE_RELEASE_VLOG((fmt), (vl))
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#else
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#define MESOSPHERE_LOG(fmt, ...)
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#define MESOSPHERE_VLOG(fmt, vl)
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#endif
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@ -204,6 +204,24 @@ namespace ams::kern {
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struct DerivedRegionExtents {
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const KMemoryRegion *first_region;
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const KMemoryRegion *last_region;
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constexpr DerivedRegionExtents() : first_region(nullptr), last_region(nullptr) { /* ... */ }
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constexpr ALWAYS_INLINE uintptr_t GetAddress() const {
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return this->first_region->GetAddress();
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}
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constexpr ALWAYS_INLINE uintptr_t GetEndAddress() const {
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return this->last_region->GetEndAddress();
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}
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constexpr ALWAYS_INLINE size_t GetSize() const {
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return this->GetEndAddress() - this->GetAddress();
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}
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constexpr ALWAYS_INLINE uintptr_t GetLastAddress() const {
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return this->GetEndAddress() - 1;
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}
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};
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private:
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using TreeType = util::IntrusiveRedBlackTreeBaseTraits<KMemoryRegion>::TreeType<KMemoryRegion>;
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@ -258,7 +276,10 @@ namespace ams::kern {
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DerivedRegionExtents GetDerivedRegionExtents(u32 type_id) {
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DerivedRegionExtents extents = { .first_region = nullptr, .last_region = nullptr };
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DerivedRegionExtents extents;
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MESOSPHERE_INIT_ABORT_UNLESS(extents.first_region == nullptr);
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MESOSPHERE_INIT_ABORT_UNLESS(extents.last_region == nullptr);
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for (auto it = this->cbegin(); it != this->cend(); it++) {
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if (it->IsDerivedFrom(type_id)) {
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@ -433,6 +454,14 @@ namespace ams::kern {
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return GetPhysicalMemoryRegionTree().FindFirstDerivedRegion(KMemoryRegionType_InterruptCpuInterface)->GetPairAddress();
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}
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static NOINLINE KVirtualAddress GetUartAddress() {
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return GetPhysicalMemoryRegionTree().FindFirstDerivedRegion(KMemoryRegionType_Uart)->GetPairAddress();
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}
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static NOINLINE auto GetCarveoutRegionExtents() {
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return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionAttr_CarveoutProtected);
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}
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static void InitializeLinearMemoryRegionTrees(KPhysicalAddress aligned_linear_phys_start, KVirtualAddress linear_virtual_start);
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};
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@ -0,0 +1,49 @@
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/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <mesosphere/kern_common.hpp>
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namespace ams::kern {
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class KSystemControl;
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class KTargetSystem {
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private:
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friend class KSystemControl;
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private:
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static inline bool s_is_debug_mode;
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static inline bool s_enable_debug_logging;
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static inline bool s_enable_user_exception_handlers;
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static inline bool s_enable_debug_memory_fill;
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static inline bool s_enable_user_pmu_access;
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static inline bool s_enable_kernel_debugging;
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private:
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static ALWAYS_INLINE void SetIsDebugMode(bool en) { s_is_debug_mode = en; }
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static ALWAYS_INLINE void EnableDebugLogging(bool en) { s_enable_debug_logging = en; }
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static ALWAYS_INLINE void EnableUserExceptionHandlers(bool en) { s_enable_user_exception_handlers = en; }
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static ALWAYS_INLINE void EnableDebugMemoryFill(bool en) { s_enable_debug_memory_fill = en; }
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static ALWAYS_INLINE void EnableUserPmuAccess(bool en) { s_enable_user_pmu_access = en; }
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static ALWAYS_INLINE void EnableKernelDebugging(bool en) { s_enable_kernel_debugging = en; }
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public:
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static ALWAYS_INLINE bool IsDebugMode() { return s_is_debug_mode; }
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static ALWAYS_INLINE bool IsDebugLoggingEnabled() { return s_enable_debug_logging; }
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static ALWAYS_INLINE bool IsUserExceptionHandlersEnabled() { return s_enable_user_exception_handlers; }
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static ALWAYS_INLINE bool IsDebugMemoryFillEnabled() { return s_enable_debug_memory_fill; }
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static ALWAYS_INLINE bool IsUserPmuAccessEnabled() { return s_enable_user_pmu_access; }
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static ALWAYS_INLINE bool IsKernelDebuggingEnabled() { return s_enable_kernel_debugging; }
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};
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}
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@ -15,6 +15,7 @@
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*/
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#pragma once
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#include <mesosphere/kern_common.hpp>
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#include <mesosphere/kern_debug_log.hpp>
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namespace ams::kern {
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@ -32,7 +33,7 @@ namespace ams::kern {
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#ifdef MESOSPHERE_ENABLE_ASSERTIONS
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#define MESOSPHERE_ASSERT_IMPL(expr, ...) \
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({ \
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if (AMS_UNLIKELY(!(expr))) { \
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if (AMS_UNLIKELY(!(expr))) { \
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MESOSPHERE_PANIC(__VA_ARGS__); \
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} \
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})
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@ -14,6 +14,8 @@
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <mesosphere/kern_common.hpp>
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#include <mesosphere/kern_k_target_system.hpp>
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#ifdef ATMOSPHERE_BOARD_NINTENDO_SWITCH
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#include <mesosphere/board/nintendo/switch/kern_k_system_control.hpp>
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@ -0,0 +1,96 @@
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/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere.hpp>
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#include "../../../kern_debug_log_impl.hpp"
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namespace ams::kern {
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namespace {
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enum UartRegister {
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UartRegister_THR = 0,
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UartRegister_IER = 1,
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UartRegister_FCR = 2,
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UartRegister_LCR = 3,
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UartRegister_LSR = 5,
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UartRegister_DLL = 0,
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UartRegister_DLH = 1,
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};
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KVirtualAddress g_uart_address = 0;
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NOINLINE u32 ReadUartRegister(UartRegister which) {
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return GetPointer<volatile u32>(g_uart_address)[which];
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}
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NOINLINE void WriteUartRegister(UartRegister which, u32 value) {
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GetPointer<volatile u32>(g_uart_address)[which] = value;
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}
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}
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bool KDebugLogImpl::Initialize() {
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/* Set the uart register base address. */
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g_uart_address = KMemoryLayout::GetUartAddress();
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/* Parameters for uart. */
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constexpr u32 BaudRate = 115200;
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constexpr u32 Pllp = 408000000;
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constexpr u32 Rate = 16 * BaudRate;
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constexpr u32 Divisor = (Pllp + Rate / 2) / Rate;
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/* Initialize the UART registers. */
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/* Set Divisor Latch Access bit, to allow access to DLL/DLH */
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WriteUartRegister(UartRegister_LCR, 0x80);
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ReadUartRegister(UartRegister_LCR);
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/* Program the divisor into DLL/DLH. */
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WriteUartRegister(UartRegister_DLL, Divisor & 0xFF);
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WriteUartRegister(UartRegister_DLH, (Divisor >> 8) & 0xFF);
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ReadUartRegister(UartRegister_DLH);
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/* Set word length to 3, clear Divisor Latch Access. */
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WriteUartRegister(UartRegister_LCR, 0x03);
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ReadUartRegister(UartRegister_LCR);
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/* Disable UART interrupts. */
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WriteUartRegister(UartRegister_IER, 0x00);
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/* Configure the FIFOO to be enabled and clear receive. */
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WriteUartRegister(UartRegister_FCR, 0x03);
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ReadUartRegister(UartRegister_FCR);
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return true;
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}
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void KDebugLogImpl::PutChar(char c) {
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while (ReadUartRegister(UartRegister_LSR) & 0x100) {
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/* While the FIFO is full, yield. */
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__asm__ __volatile__("yield" ::: "memory");
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}
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WriteUartRegister(UartRegister_THR, c);
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cpu::DataSynchronizationBarrier();
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}
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void KDebugLogImpl::Flush() {
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while ((ReadUartRegister(UartRegister_LSR) & 0x40) == 0) {
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/* Wait for the TMTY bit to be one (transmit empty). */
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}
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}
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}
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@ -22,13 +22,27 @@ namespace ams::kern {
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constexpr uintptr_t DramPhysicalAddress = 0x80000000;
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constexpr size_t ReservedEarlyDramSize = 0x60000;
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ALWAYS_INLINE bool SetupUartPhysicalMemoryRegion() {
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#if defined(MESOSPHERE_DEBUG_LOG_USE_UART_A)
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return KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(0x70006000, 0x40, KMemoryRegionType_Uart | KMemoryRegionAttr_ShouldKernelMap);
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#elif defined(MESOSPHERE_DEBUG_LOG_USE_UART_B)
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return KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(0x70006040, 0x40, KMemoryRegionType_Uart | KMemoryRegionAttr_ShouldKernelMap);
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#elif defined(MESOSPHERE_DEBUG_LOG_USE_UART_C)
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return KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(0x70006200, 0x100, KMemoryRegionType_Uart | KMemoryRegionAttr_ShouldKernelMap);
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#elif defined(MESOSPHERE_DEBUG_LOG_USE_UART_D)
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return KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(0x70006300, 0x100, KMemoryRegionType_Uart | KMemoryRegionAttr_ShouldKernelMap);
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#else
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#error "Unknown Debug UART device!"
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#endif
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}
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}
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namespace init {
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void SetupDevicePhysicalMemoryRegions() {
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/* TODO: Give these constexpr defines somewhere? */
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MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(0x70006000, 0x40, KMemoryRegionType_Uart | KMemoryRegionAttr_ShouldKernelMap));
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MESOSPHERE_INIT_ABORT_UNLESS(SetupUartPhysicalMemoryRegion());
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MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(0x70019000, 0x1000, KMemoryRegionType_MemoryController | KMemoryRegionAttr_NoUserMap));
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MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(0x7001C000, 0x1000, KMemoryRegionType_MemoryController0 | KMemoryRegionAttr_NoUserMap));
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MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(0x7001D000, 0x1000, KMemoryRegionType_MemoryController1 | KMemoryRegionAttr_NoUserMap));
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@ -20,6 +20,9 @@ namespace ams::kern {
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namespace {
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/* Global variables for panic. */
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bool g_call_smc_on_panic;
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/* Global variables for randomness. */
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/* Incredibly, N really does use std:: randomness... */
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bool g_initialized_random_generator;
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@ -70,6 +73,20 @@ namespace ams::kern {
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return value;
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}
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ALWAYS_INLINE u64 GetConfigU64(smc::ConfigItem which) {
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u64 value;
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smc::GetConfig(&value, 1, which);
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return value;
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}
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ALWAYS_INLINE u32 GetConfigU32(smc::ConfigItem which) {
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return static_cast<u32>(GetConfigU64(which));
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}
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ALWAYS_INLINE bool GetConfigBool(smc::ConfigItem which) {
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return GetConfigU64(which) != 0;
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}
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}
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/* Initialization. */
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@ -160,6 +177,44 @@ namespace ams::kern {
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}
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}
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/* System Initialization. */
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void KSystemControl::Initialize() {
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/* Set IsDebugMode. */
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{
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KTargetSystem::SetIsDebugMode(GetConfigBool(smc::ConfigItem::IsDebugMode));
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/* If debug mode, we want to initialize uart logging. */
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KTargetSystem::EnableDebugLogging(KTargetSystem::IsDebugMode());
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KDebugLog::Initialize();
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}
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/* Set Kernel Configuration. */
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{
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const auto kernel_config = util::BitPack32{GetConfigU32(smc::ConfigItem::KernelConfiguration)};
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KTargetSystem::EnableDebugMemoryFill(kernel_config.Get<smc::KernelConfiguration::DebugFillMemory>());
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KTargetSystem::EnableUserExceptionHandlers(kernel_config.Get<smc::KernelConfiguration::EnableUserExceptionHandlers>());
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KTargetSystem::EnableUserPmuAccess(kernel_config.Get<smc::KernelConfiguration::EnableUserPmuAccess>());
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g_call_smc_on_panic = kernel_config.Get<smc::KernelConfiguration::UseSecureMonitorPanicCall>();
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}
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/* Set Program Verification. */
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{
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/* NOTE: This is used to restrict access to SvcKernelDebug/SvcChangeKernelTraceState. */
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/* Mesosphere may wish to not require this, as we'd ideally keep ProgramVerification enabled for userland. */
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KTargetSystem::EnableKernelDebugging(GetConfigBool(smc::ConfigItem::DisableProgramVerification));
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}
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/* Configure the Kernel Carveout region. */
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{
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const auto carveout = KMemoryLayout::GetCarveoutRegionExtents();
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smc::ConfigureCarveout(0, carveout.GetAddress(), carveout.GetSize());
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}
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/* TODO: KResourceLimit initialization. */
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}
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/* Randomness. */
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void KSystemControl::GenerateRandomBytes(void *dst, size_t size) {
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MESOSPHERE_INIT_ABORT_UNLESS(size <= 0x38);
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@ -181,8 +236,10 @@ namespace ams::kern {
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}
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void KSystemControl::StopSystem() {
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/* Display a panic screen via exosphere. */
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smc::Panic(0xF00);
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if (g_call_smc_on_panic) {
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/* Display a panic screen via secure monitor. */
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smc::Panic(0xF00);
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}
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while (true) { /* ... */ }
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}
|
||||
|
||||
|
|
|
|||
|
|
@ -143,6 +143,20 @@ namespace ams::kern::smc {
|
|||
|
||||
}
|
||||
|
||||
void GetConfig(u64 *out, size_t num_qwords, ConfigItem config_item) {
|
||||
SecureMonitorArguments args = { FunctionId_GetConfig, static_cast<u32>(config_item) };
|
||||
CallPrivilegedSecureMonitorFunction(args);
|
||||
MESOSPHERE_ABORT_UNLESS((static_cast<SmcResult>(args.x[0]) == SmcResult::Success));
|
||||
for (size_t i = 0; i < num_qwords && i < 7; i++) {
|
||||
out[i] = args.x[1 + i];
|
||||
}
|
||||
}
|
||||
|
||||
void ConfigureCarveout(size_t which, uintptr_t address, size_t size) {
|
||||
SecureMonitorArguments args = { FunctionId_ConfigureCarveout, static_cast<u64>(which), static_cast<u64>(address), static_cast<u64>(size) };
|
||||
CallPrivilegedSecureMonitorFunction(args);
|
||||
MESOSPHERE_ABORT_UNLESS((static_cast<SmcResult>(args.x[0]) == SmcResult::Success));
|
||||
}
|
||||
|
||||
void GenerateRandomBytes(void *dst, size_t size) {
|
||||
/* Setup for call. */
|
||||
|
|
|
|||
|
|
@ -85,6 +85,8 @@ namespace ams::kern::smc {
|
|||
|
||||
/* TODO: Rest of Secure Monitor API. */
|
||||
void GenerateRandomBytes(void *dst, size_t size);
|
||||
void GetConfig(u64 *out, size_t num_qwords, ConfigItem config_item);
|
||||
void ConfigureCarveout(size_t which, uintptr_t address, size_t size);
|
||||
void NORETURN Panic(u32 color);
|
||||
|
||||
namespace init {
|
||||
|
|
|
|||
453
libraries/libmesosphere/source/kern_debug_log.cpp
Normal file
453
libraries/libmesosphere/source/kern_debug_log.cpp
Normal file
|
|
@ -0,0 +1,453 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2020 Atmosphère-NX
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
#include <mesosphere.hpp>
|
||||
#include "kern_debug_log_impl.hpp"
|
||||
|
||||
namespace ams::kern {
|
||||
|
||||
namespace {
|
||||
|
||||
/* Useful definitions for our VSNPrintf implementation. */
|
||||
enum FormatSpecifierFlag : u32 {
|
||||
FormatSpecifierFlag_None = 0,
|
||||
FormatSpecifierFlag_EmptySign = (1 << 0),
|
||||
FormatSpecifierFlag_ForceSign = (1 << 1),
|
||||
FormatSpecifierFlag_Hash = (1 << 2),
|
||||
FormatSpecifierFlag_LeftJustify = (1 << 3),
|
||||
FormatSpecifierFlag_ZeroPad = (1 << 4),
|
||||
FormatSpecifierFlag_Char = (1 << 5),
|
||||
FormatSpecifierFlag_Short = (1 << 6),
|
||||
FormatSpecifierFlag_Long = (1 << 7),
|
||||
FormatSpecifierFlag_LongLong = (1 << 8),
|
||||
FormatSpecifierFlag_Uppercase = (1 << 9),
|
||||
FormatSpecifierFlag_HasPrecision = (1 << 10),
|
||||
};
|
||||
|
||||
using FormatSpecifierFlagStorage = std::underlying_type<FormatSpecifierFlag>::type;
|
||||
|
||||
constexpr ALWAYS_INLINE bool IsDigit(char c) {
|
||||
return '0' <= c && c <= '9';
|
||||
}
|
||||
|
||||
constexpr ALWAYS_INLINE u32 ParseU32(const char *&str) {
|
||||
u32 value = 0;
|
||||
do {
|
||||
value = (value * 10) + static_cast<u32>(*(str++) - '0');
|
||||
} while (IsDigit(*str));
|
||||
return value;
|
||||
}
|
||||
|
||||
constexpr ALWAYS_INLINE size_t Strnlen(const char *str, size_t max) {
|
||||
const char *cur = str;
|
||||
while (*cur && max--) {
|
||||
cur++;
|
||||
}
|
||||
return static_cast<size_t>(cur - str);
|
||||
}
|
||||
|
||||
ALWAYS_INLINE void VSNPrintfImpl(char * const dst, const size_t dst_size, const char *format, ::std::va_list vl) {
|
||||
size_t dst_index = 0;
|
||||
|
||||
auto WriteCharacter = [dst, dst_size, &dst_index](char c) ALWAYS_INLINE_LAMBDA {
|
||||
if (dst_index < dst_size) {
|
||||
dst[dst_index++] = c;
|
||||
}
|
||||
};
|
||||
|
||||
/* Loop over every character in the string, looking for format specifiers. */
|
||||
while (*format) {
|
||||
if (const char c = *(format++); c != '%') {
|
||||
WriteCharacter(c);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* We have to parse a format specifier. */
|
||||
/* Start by parsing flags. */
|
||||
FormatSpecifierFlagStorage flags = FormatSpecifierFlag_None;
|
||||
auto SetFlag = [&flags](FormatSpecifierFlag f) ALWAYS_INLINE_LAMBDA { flags |= f; };
|
||||
auto ClearFlag = [&flags](FormatSpecifierFlag f) ALWAYS_INLINE_LAMBDA { flags &= ~f; };
|
||||
auto HasFlag = [&flags](FormatSpecifierFlag f) ALWAYS_INLINE_LAMBDA { return (flags & f) != 0; };
|
||||
{
|
||||
bool parsed_flags = false;
|
||||
while (!parsed_flags) {
|
||||
switch (*format) {
|
||||
case ' ': SetFlag(FormatSpecifierFlag_EmptySign); format++; break;
|
||||
case '+': SetFlag(FormatSpecifierFlag_ForceSign); format++; break;
|
||||
case '#': SetFlag(FormatSpecifierFlag_Hash); format++; break;
|
||||
case '-': SetFlag(FormatSpecifierFlag_LeftJustify); format++; break;
|
||||
case '0': SetFlag(FormatSpecifierFlag_ZeroPad); format++; break;
|
||||
default:
|
||||
parsed_flags = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Next, parse width. */
|
||||
u32 width = 0;
|
||||
if (IsDigit(*format)) {
|
||||
/* Integer width. */
|
||||
width = ParseU32(format);
|
||||
} else if (*format == '*') {
|
||||
/* Dynamic width. */
|
||||
const int _width = va_arg(vl, int);
|
||||
if (_width >= 0) {
|
||||
width = static_cast<u32>(_width);
|
||||
} else {
|
||||
SetFlag(FormatSpecifierFlag_LeftJustify);
|
||||
width = static_cast<u32>(-_width);
|
||||
}
|
||||
format++;
|
||||
}
|
||||
|
||||
/* Next, parse precision if present. */
|
||||
u32 precision = 0;
|
||||
if (*format == '.') {
|
||||
SetFlag(FormatSpecifierFlag_HasPrecision);
|
||||
format++;
|
||||
|
||||
if (IsDigit(*format)) {
|
||||
/* Integer precision. */
|
||||
precision = ParseU32(format);
|
||||
} else if (*format == '*') {
|
||||
/* Dynamic precision. */
|
||||
const int _precision = va_arg(vl, int);
|
||||
if (_precision > 0) {
|
||||
precision = static_cast<u32>(_precision);
|
||||
}
|
||||
format++;
|
||||
}
|
||||
}
|
||||
|
||||
/* Parse length. */
|
||||
constexpr bool SizeIsLong = sizeof(size_t) == sizeof(long);
|
||||
constexpr bool IntMaxIsLong = sizeof(intmax_t) == sizeof(long);
|
||||
constexpr bool PtrDiffIsLong = sizeof(ptrdiff_t) == sizeof(long);
|
||||
switch (*format) {
|
||||
case 'z':
|
||||
SetFlag(SizeIsLong ? FormatSpecifierFlag_Long : FormatSpecifierFlag_LongLong);
|
||||
format++;
|
||||
break;
|
||||
case 'j':
|
||||
SetFlag(IntMaxIsLong ? FormatSpecifierFlag_Long : FormatSpecifierFlag_LongLong);
|
||||
format++;
|
||||
break;
|
||||
case 't':
|
||||
SetFlag(PtrDiffIsLong ? FormatSpecifierFlag_Long : FormatSpecifierFlag_LongLong);
|
||||
format++;
|
||||
break;
|
||||
case 'h':
|
||||
SetFlag(FormatSpecifierFlag_Short);
|
||||
format++;
|
||||
if (*format == 'h') {
|
||||
SetFlag(FormatSpecifierFlag_Char);
|
||||
format++;
|
||||
}
|
||||
break;
|
||||
case 'l':
|
||||
SetFlag(FormatSpecifierFlag_Long);
|
||||
format++;
|
||||
if (*format == 'l') {
|
||||
SetFlag(FormatSpecifierFlag_LongLong);
|
||||
format++;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
const char specifier = *(format++);
|
||||
switch (specifier) {
|
||||
case 'p':
|
||||
if constexpr (sizeof(uintptr_t) == sizeof(long long)) {
|
||||
SetFlag(FormatSpecifierFlag_LongLong);
|
||||
} else {
|
||||
SetFlag(FormatSpecifierFlag_Long);
|
||||
}
|
||||
SetFlag(FormatSpecifierFlag_Hash);
|
||||
[[fallthrough]];
|
||||
case 'd':
|
||||
case 'i':
|
||||
case 'u':
|
||||
case 'b':
|
||||
case 'o':
|
||||
case 'x':
|
||||
case 'X':
|
||||
{
|
||||
/* Determine the base to print with. */
|
||||
u32 base;
|
||||
switch (specifier) {
|
||||
case 'b':
|
||||
base = 2;
|
||||
break;
|
||||
case 'o':
|
||||
base = 8;
|
||||
break;
|
||||
case 'X':
|
||||
SetFlag(FormatSpecifierFlag_Uppercase);
|
||||
[[fallthrough]];
|
||||
case 'p':
|
||||
case 'x':
|
||||
base = 16;
|
||||
break;
|
||||
default:
|
||||
base = 10;
|
||||
ClearFlag(FormatSpecifierFlag_Hash);
|
||||
break;
|
||||
}
|
||||
|
||||
/* Precision implies no zero-padding. */
|
||||
if (HasFlag(FormatSpecifierFlag_HasPrecision)) {
|
||||
ClearFlag(FormatSpecifierFlag_ZeroPad);
|
||||
}
|
||||
|
||||
/* Unsigned types don't get signs. */
|
||||
const bool is_unsigned = base != 10 || specifier == 'u';
|
||||
if (is_unsigned) {
|
||||
ClearFlag(FormatSpecifierFlag_EmptySign);
|
||||
ClearFlag(FormatSpecifierFlag_ForceSign);
|
||||
}
|
||||
|
||||
auto PrintInteger = [&](bool negative, uintmax_t value) {
|
||||
constexpr size_t BufferSize = 64; /* Binary digits for 64-bit numbers may use 64 digits. */
|
||||
char buf[BufferSize];
|
||||
size_t len = 0;
|
||||
|
||||
/* No hash flag for zero. */
|
||||
if (value == 0) {
|
||||
ClearFlag(FormatSpecifierFlag_Hash);
|
||||
}
|
||||
|
||||
if (!HasFlag(FormatSpecifierFlag_HasPrecision) || value != 0) {
|
||||
do {
|
||||
const char digit = static_cast<char>(value % base);
|
||||
buf[len++] = (digit < 10) ? ('0' + digit) : ((HasFlag(FormatSpecifierFlag_Uppercase) ? 'A' : 'a') + digit - 10);
|
||||
value /= base;
|
||||
} while (value);
|
||||
}
|
||||
|
||||
/* Determine our prefix length. */
|
||||
size_t prefix_len = 0;
|
||||
const bool has_sign = negative || HasFlag(FormatSpecifierFlag_ForceSign) || HasFlag(FormatSpecifierFlag_EmptySign);
|
||||
if (has_sign) {
|
||||
prefix_len++;
|
||||
}
|
||||
if (HasFlag(FormatSpecifierFlag_Hash)) {
|
||||
prefix_len += (base != 8) ? 2 : 1;
|
||||
}
|
||||
|
||||
/* Determine zero-padding count. */
|
||||
size_t num_zeroes = (len < precision) ? precision - len : 0;
|
||||
if (!HasFlag(FormatSpecifierFlag_LeftJustify) && HasFlag(FormatSpecifierFlag_ZeroPad)) {
|
||||
num_zeroes = (len + prefix_len < width) ? width - len - prefix_len : 0;
|
||||
}
|
||||
|
||||
/* Print out left padding. */
|
||||
if (!HasFlag(FormatSpecifierFlag_LeftJustify)) {
|
||||
for (size_t i = len + prefix_len + num_zeroes; i < static_cast<size_t>(width); i++) {
|
||||
WriteCharacter(' ');
|
||||
}
|
||||
}
|
||||
|
||||
/* Print out sign. */
|
||||
if (negative) {
|
||||
WriteCharacter('-');
|
||||
} else if (HasFlag(FormatSpecifierFlag_ForceSign)) {
|
||||
WriteCharacter('+');
|
||||
} else if (HasFlag(FormatSpecifierFlag_EmptySign)) {
|
||||
WriteCharacter(' ');
|
||||
}
|
||||
|
||||
/* Print out base prefix. */
|
||||
if (HasFlag(FormatSpecifierFlag_Hash)) {
|
||||
WriteCharacter('0');
|
||||
if (base == 2) {
|
||||
WriteCharacter('b');
|
||||
} else if (base == 16) {
|
||||
WriteCharacter('x');
|
||||
}
|
||||
}
|
||||
|
||||
/* Print out zeroes. */
|
||||
for (size_t i = 0; i < num_zeroes; i++) {
|
||||
WriteCharacter('0');
|
||||
}
|
||||
|
||||
/* Print out digits. */
|
||||
for (size_t i = 0; i < len; i++) {
|
||||
WriteCharacter(buf[len - 1 - i]);
|
||||
}
|
||||
|
||||
/* Print out right padding. */
|
||||
if (HasFlag(FormatSpecifierFlag_LeftJustify)) {
|
||||
for (size_t i = len + prefix_len + num_zeroes; i < static_cast<size_t>(width); i++) {
|
||||
WriteCharacter(' ');
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/* Output the integer. */
|
||||
if (is_unsigned) {
|
||||
uintmax_t n = 0;
|
||||
if (HasFlag(FormatSpecifierFlag_LongLong)) {
|
||||
n = static_cast<unsigned long long>(va_arg(vl, unsigned long long));
|
||||
} else if (HasFlag(FormatSpecifierFlag_Long)) {
|
||||
n = static_cast<unsigned long>(va_arg(vl, unsigned long));
|
||||
} else if (HasFlag(FormatSpecifierFlag_Char)) {
|
||||
n = static_cast<unsigned char>(va_arg(vl, unsigned int));
|
||||
} else if (HasFlag(FormatSpecifierFlag_Short)) {
|
||||
n = static_cast<unsigned short>(va_arg(vl, unsigned int));
|
||||
} else {
|
||||
n = static_cast<unsigned int>(va_arg(vl, unsigned int));
|
||||
}
|
||||
if (specifier == 'p' && n == 0) {
|
||||
WriteCharacter('(');
|
||||
WriteCharacter('n');
|
||||
WriteCharacter('i');
|
||||
WriteCharacter('l');
|
||||
WriteCharacter(')');
|
||||
} else {
|
||||
PrintInteger(false, n);
|
||||
}
|
||||
} else {
|
||||
intmax_t n = 0;
|
||||
if (HasFlag(FormatSpecifierFlag_LongLong)) {
|
||||
n = static_cast<signed long long>(va_arg(vl, signed long long));
|
||||
} else if (HasFlag(FormatSpecifierFlag_Long)) {
|
||||
n = static_cast<signed long>(va_arg(vl, signed long));
|
||||
} if (HasFlag(FormatSpecifierFlag_Char)) {
|
||||
n = static_cast<signed char>(va_arg(vl, signed int));
|
||||
} else if (HasFlag(FormatSpecifierFlag_Short)) {
|
||||
n = static_cast<signed short>(va_arg(vl, signed int));
|
||||
} else {
|
||||
n = static_cast<signed int>(va_arg(vl, signed int));
|
||||
}
|
||||
const bool negative = n < 0;
|
||||
const uintmax_t u = (negative) ? static_cast<uintmax_t>(-n) : static_cast<uintmax_t>(n);
|
||||
PrintInteger(negative, u);
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 'c':
|
||||
{
|
||||
size_t len = 1;
|
||||
if (!HasFlag(FormatSpecifierFlag_LeftJustify)) {
|
||||
while (len++ < width) {
|
||||
WriteCharacter(' ');
|
||||
}
|
||||
}
|
||||
WriteCharacter(static_cast<char>(va_arg(vl, int)));
|
||||
if (HasFlag(FormatSpecifierFlag_LeftJustify)) {
|
||||
while (len++ < width) {
|
||||
WriteCharacter(' ');
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 's':
|
||||
{
|
||||
const char *str = va_arg(vl, char *);
|
||||
if (str == nullptr) {
|
||||
str = "(null)";
|
||||
}
|
||||
|
||||
size_t len = Strnlen(str, precision > 0 ? precision : std::numeric_limits<size_t>::max());
|
||||
if (HasFlag(FormatSpecifierFlag_HasPrecision)) {
|
||||
len = (len < precision) ? len : precision;
|
||||
}
|
||||
if (!HasFlag(FormatSpecifierFlag_LeftJustify)) {
|
||||
while (len++ < width) {
|
||||
WriteCharacter(' ');
|
||||
}
|
||||
}
|
||||
while (*str && (!HasFlag(FormatSpecifierFlag_HasPrecision) || (precision--) != 0)) {
|
||||
WriteCharacter(*(str++));
|
||||
}
|
||||
if (HasFlag(FormatSpecifierFlag_LeftJustify)) {
|
||||
while (len++ < width) {
|
||||
WriteCharacter(' ');
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
case '%':
|
||||
default:
|
||||
WriteCharacter(specifier);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Ensure null termination. */
|
||||
WriteCharacter('\0');
|
||||
dst[dst_size - 1] = '\0';
|
||||
}
|
||||
|
||||
KSpinLock g_debug_log_lock;
|
||||
bool g_initialized_impl;
|
||||
|
||||
/* NOTE: Nintendo's print buffer is size 0x100. */
|
||||
char g_print_buffer[0x400];
|
||||
|
||||
void PutString(const char *str) {
|
||||
if (g_initialized_impl) {
|
||||
while (*str) {
|
||||
const char c = *(str++);
|
||||
if (c == '\n') {
|
||||
KDebugLogImpl::PutChar('\r');
|
||||
}
|
||||
KDebugLogImpl::PutChar(c);
|
||||
}
|
||||
KDebugLogImpl::Flush();
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void KDebugLog::Initialize() {
|
||||
if (KTargetSystem::IsDebugLoggingEnabled()) {
|
||||
KScopedInterruptDisable di;
|
||||
KScopedSpinLock lk(g_debug_log_lock);
|
||||
|
||||
if (!g_initialized_impl) {
|
||||
g_initialized_impl = KDebugLogImpl::Initialize();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void KDebugLog::Printf(const char *format, ...) {
|
||||
if (KTargetSystem::IsDebugLoggingEnabled()) {
|
||||
::std::va_list vl;
|
||||
va_start(vl, format);
|
||||
VPrintf(format, vl);
|
||||
va_end(vl);
|
||||
}
|
||||
}
|
||||
|
||||
void KDebugLog::VPrintf(const char *format, ::std::va_list vl) {
|
||||
if (KTargetSystem::IsDebugLoggingEnabled()) {
|
||||
KScopedInterruptDisable di;
|
||||
KScopedSpinLock lk(g_debug_log_lock);
|
||||
|
||||
VSNPrintf(g_print_buffer, util::size(g_print_buffer), format, vl);
|
||||
PutString(g_print_buffer);
|
||||
}
|
||||
}
|
||||
|
||||
void KDebugLog::VSNPrintf(char *dst, const size_t dst_size, const char *format, ::std::va_list vl) {
|
||||
VSNPrintfImpl(dst, dst_size, format, vl);
|
||||
}
|
||||
|
||||
}
|
||||
28
libraries/libmesosphere/source/kern_debug_log_impl.hpp
Normal file
28
libraries/libmesosphere/source/kern_debug_log_impl.hpp
Normal file
|
|
@ -0,0 +1,28 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2020 Atmosphère-NX
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
#pragma once
|
||||
#include <mesosphere.hpp>
|
||||
|
||||
namespace ams::kern {
|
||||
|
||||
class KDebugLogImpl {
|
||||
public:
|
||||
static NOINLINE bool Initialize();
|
||||
static NOINLINE void PutChar(char c);
|
||||
static NOINLINE void Flush();
|
||||
};
|
||||
|
||||
}
|
||||
|
|
@ -76,10 +76,10 @@ namespace ams::kern {
|
|||
const auto extents = this->GetDerivedRegionExtents(type_id);
|
||||
|
||||
/* Ensure that our alignment is correct. */
|
||||
MESOSPHERE_INIT_ABORT_UNLESS(util::IsAligned(extents.first_region->GetAddress(), alignment));
|
||||
MESOSPHERE_INIT_ABORT_UNLESS(util::IsAligned(extents.GetAddress(), alignment));
|
||||
|
||||
const uintptr_t first_address = extents.first_region->GetAddress();
|
||||
const uintptr_t last_address = extents.last_region->GetLastAddress();
|
||||
const uintptr_t first_address = extents.GetAddress();
|
||||
const uintptr_t last_address = extents.GetLastAddress();
|
||||
|
||||
while (true) {
|
||||
const uintptr_t candidate = util::AlignDown(KSystemControl::Init::GenerateRandomRange(first_address, last_address), alignment);
|
||||
|
|
@ -209,9 +209,9 @@ namespace ams::kern {
|
|||
/* Use the l1 page table for each core to map the core local region for each core. */
|
||||
for (size_t i = 0; i < cpu::NumCores; i++) {
|
||||
KInitialPageTable temp_pt(core_l1_ttbr1_phys[i], KInitialPageTable::NoClear{});
|
||||
temp_pt.Map(core_local_virt_start, PageSize, core_l1_ttbr1_phys[i], KernelRwDataAttribute, page_allocator);
|
||||
temp_pt.Map(core_local_virt_start, PageSize, core_local_region_start_phys[i], KernelRwDataAttribute, page_allocator);
|
||||
for (size_t j = 0; j < cpu::NumCores; j++) {
|
||||
temp_pt.Map(core_local_virt_start + (j + 1) * PageSize, PageSize, core_l1_ttbr1_phys[j], KernelRwDataAttribute, page_allocator);
|
||||
temp_pt.Map(core_local_virt_start + (j + 1) * PageSize, PageSize, core_local_region_start_phys[j], KernelRwDataAttribute, page_allocator);
|
||||
}
|
||||
|
||||
/* Setup the InitArguments. */
|
||||
|
|
@ -239,16 +239,16 @@ namespace ams::kern {
|
|||
const uintptr_t pool_partitions_start = KMemoryLayout::GetPhysicalMemoryRegionTree().FindFirstRegionByTypeAttr(KMemoryRegionType_DramPoolPartition)->GetAddress();
|
||||
|
||||
/* Decide on starting addresses for our pools. */
|
||||
const uintptr_t application_pool_start = dram_extents.last_region->GetEndAddress() - application_pool_size;
|
||||
const uintptr_t application_pool_start = dram_extents.GetEndAddress() - application_pool_size;
|
||||
const uintptr_t applet_pool_start = application_pool_start - applet_pool_size;
|
||||
const uintptr_t unsafe_system_pool_start = std::min(kernel_dram_start + CarveoutSizeMax, util::AlignDown(applet_pool_start - unsafe_system_pool_min_size, CarveoutAlignment));
|
||||
const size_t unsafe_system_pool_size = applet_pool_start - unsafe_system_pool_start;
|
||||
|
||||
/* We want to arrange application pool depending on where the middle of dram is. */
|
||||
const uintptr_t dram_midpoint = (dram_extents.first_region->GetAddress() + dram_extents.last_region->GetEndAddress()) / 2;
|
||||
const uintptr_t dram_midpoint = (dram_extents.GetAddress() + dram_extents.GetEndAddress()) / 2;
|
||||
u32 cur_pool_attr = 0;
|
||||
size_t total_overhead_size = 0;
|
||||
if (dram_extents.last_region->GetEndAddress() <= dram_midpoint || dram_midpoint <= application_pool_start) {
|
||||
if (dram_extents.GetEndAddress() <= dram_midpoint || dram_midpoint <= application_pool_start) {
|
||||
InsertPoolPartitionRegionIntoBothTrees(application_pool_start, application_pool_size, KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool, cur_pool_attr);
|
||||
total_overhead_size += KMemoryManager::CalculateMetadataOverheadSize(application_pool_size);
|
||||
} else {
|
||||
|
|
|
|||
|
|
@ -35,6 +35,9 @@ namespace ams::kern {
|
|||
}
|
||||
|
||||
if (core_id == 0) {
|
||||
/* Initialize KSystemControl. */
|
||||
KSystemControl::Initialize();
|
||||
|
||||
/* Note: this is not actually done here, it's done later in main after more stuff is setup. */
|
||||
/* However, for testing (and to manifest this code in the produced binary, this is here for now. */
|
||||
/* TODO: Do this better. */
|
||||
|
|
|
|||
Loading…
Reference in a new issue