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mesosphere: Implement SVC table auto-generation

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This commit is contained in:
Michael Scire 2020-01-17 22:02:45 -08:00
parent 6ecf04c3b7
commit 6ee305464a
17 changed files with 2614 additions and 4 deletions
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3
libraries/libmesosphere/include/mesosphere.hpp
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@ -36,3 +36,6 @@
/* Core functionality. */
#include "mesosphere/kern_select_interrupts.hpp"
#include "mesosphere/kern_select_k_system_control.hpp"
/* Supervisor Calls. */
#include "mesosphere/kern_svc.hpp"

19
libraries/libmesosphere/include/mesosphere/kern_svc.hpp Normal file
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@ -0,0 +1,19 @@
/*
* Copyright (c) 2018-2019 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 "svc/kern_svc_k_user_pointer.hpp"
#include "svc/kern_svc_prototypes.hpp"
#include "svc/kern_svc_tables.hpp"

32
libraries/libmesosphere/include/mesosphere/svc/kern_svc_k_user_pointer.hpp Normal file
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@ -0,0 +1,32 @@
/*
* Copyright (c) 2018-2019 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 <vapours.hpp>
namespace ams::kern::svc {
/* TODO: Actually implement this type. */
template<typename T>
struct KUserPointer : impl::KUserPointerTag {
public:
static_assert(std::is_pointer<T>::value);
static constexpr bool IsInput = std::is_const<typename std::remove_pointer<T>::type>::value;
private:
T pointer;
};
}

36
libraries/libmesosphere/include/mesosphere/svc/kern_svc_prototypes.hpp Normal file
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@ -0,0 +1,36 @@
/*
* Copyright (c) 2018-2019 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 <vapours.hpp>
#include "kern_svc_k_user_pointer.hpp"
namespace ams::kern::svc {
#define AMS_KERN_SVC_DECLARE_PROTOTYPE_64(ID, RETURN_TYPE, NAME, ...) \
RETURN_TYPE NAME##64(__VA_ARGS__);
#define AMS_KERN_SVC_DECLARE_PROTOTYPE_64_FROM_32(ID, RETURN_TYPE, NAME, ...) \
RETURN_TYPE NAME##64From32(__VA_ARGS__);
AMS_SVC_FOREACH_KERN_DEFINITION(AMS_KERN_SVC_DECLARE_PROTOTYPE_64, lp64)
AMS_SVC_FOREACH_KERN_DEFINITION(AMS_KERN_SVC_DECLARE_PROTOTYPE_64_FROM_32, ilp32)
/* TODO: Support _32 ABI */
#undef AMS_KERN_SVC_DECLARE_PROTOTYPE_64
#undef AMS_KERN_SVC_DECLARE_PROTOTYPE_64_FROM_32
}

29
libraries/libmesosphere/include/mesosphere/svc/kern_svc_tables.hpp Normal file
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@ -0,0 +1,29 @@
/*
* Copyright (c) 2018-2019 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 <vapours.hpp>
namespace ams::kern::svc {
static constexpr size_t NumSupervisorCalls = 0x80;
using SvcTableEntry = void (*)();
/* TODO: 32-bit ABI */
extern const std::array<SvcTableEntry, NumSupervisorCalls> SvcTable64From32;
extern const std::array<SvcTableEntry, NumSupervisorCalls> SvcTable64;
}

67
libraries/libmesosphere/source/svc/kern_svc_tables.cpp Normal file
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@ -0,0 +1,67 @@
/*
* Copyright (c) 2018-2019 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 <vapours/svc/svc_codegen.hpp>
namespace ams::kern::svc {
namespace {
#define DECLARE_SVC_STRUCT(ID, RETURN_TYPE, NAME, ...) \
class NAME { \
private: \
using Impl = ::ams::svc::codegen::KernelSvcWrapper<::ams::kern::svc::NAME##64, ::ams::kern::svc::NAME##64From32>; \
public: \
static NOINLINE void Call64() { return Impl::Call64(); } \
static NOINLINE void Call64From32() { return Impl::Call64From32(); } \
};
/* Set omit-frame-pointer to prevent GCC from emitting MOV X29, SP instructions. */
#pragma GCC push_options
#pragma GCC optimize ("omit-frame-pointer")
AMS_SVC_FOREACH_KERN_DEFINITION(DECLARE_SVC_STRUCT, _)
#pragma GCC pop_options
}
/* TODO: 32-bit ABI */
const std::array<SvcTableEntry, NumSupervisorCalls> SvcTable64From32 = [] {
std::array<SvcTableEntry, NumSupervisorCalls> table = {};
#define AMS_KERN_SVC_SET_TABLE_ENTRY(ID, RETURN_TYPE, NAME, ...) \
table[ID] = NAME::Call64From32;
AMS_SVC_FOREACH_KERN_DEFINITION(AMS_KERN_SVC_SET_TABLE_ENTRY, _)
#undef AMS_KERN_SVC_SET_TABLE_ENTRY
return table;
}();
const std::array<SvcTableEntry, NumSupervisorCalls> SvcTable64 = [] {
std::array<SvcTableEntry, NumSupervisorCalls> table = {};
#define AMS_KERN_SVC_SET_TABLE_ENTRY(ID, RETURN_TYPE, NAME, ...) \
table[ID] = NAME::Call64;
AMS_SVC_FOREACH_KERN_DEFINITION(AMS_KERN_SVC_SET_TABLE_ENTRY, _)
#undef AMS_KERN_SVC_SET_TABLE_ENTRY
return table;
}();
}