git subrepo clone https://github.com/Atmosphere-NX/Atmosphere-libs libraries

subrepo:
  subdir:   "libraries"
  merged:   "07af583b"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "07af583b"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"

libraries/libstratosphere/include/stratosphere/map/map_api.hpp

@@ -0,0 +1,28 @@
+/*
+ * 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 "map_types.hpp"
+
+namespace ams::map {
+
+    /* Public API. */
+    Result GetProcessAddressSpaceInfo(AddressSpaceInfo *out, Handle process_h);
+    Result LocateMappableSpace(uintptr_t *out_address, size_t size);
+    Result MapCodeMemoryInProcess(MappedCodeMemory &out_mcm, Handle process_handle, uintptr_t base_address, size_t size);
+    bool   CanAddGuardRegionsInProcess(Handle process_handle, uintptr_t address, size_t size);
+
+}

libraries/libstratosphere/include/stratosphere/map/map_types.hpp

@@ -0,0 +1,122 @@
+/*
+ * 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::map {
+
+    /* Types. */
+    struct AddressSpaceInfo {
+        uintptr_t heap_base;
+        size_t heap_size;
+        uintptr_t heap_end;
+        uintptr_t alias_base;
+        size_t alias_size;
+        uintptr_t alias_end;
+        uintptr_t aslr_base;
+        size_t aslr_size;
+        uintptr_t aslr_end;
+    };
+
+    static constexpr uintptr_t AslrBase32Bit           = 0x0000200000ul;
+    static constexpr size_t    AslrSize32Bit           = 0x003FE00000ul;
+    static constexpr uintptr_t AslrBase64BitDeprecated = 0x0008000000ul;
+    static constexpr size_t    AslrSize64BitDeprecated = 0x0078000000ul;
+    static constexpr uintptr_t AslrBase64Bit           = 0x0008000000ul;
+    static constexpr size_t    AslrSize64Bit           = 0x7FF8000000ul;
+
+    class AutoCloseMap {
+        private:
+            Handle process_handle;
+            Result result;
+            void *mapped_address;
+            uintptr_t base_address;
+            size_t size;
+        public:
+            AutoCloseMap(uintptr_t mp, Handle p_h, uintptr_t ba, size_t sz) : process_handle(p_h), mapped_address(reinterpret_cast<void *>(mp)), base_address(ba), size(sz) {
+                this->result = svcMapProcessMemory(this->mapped_address, this->process_handle, this->base_address, this->size);
+            }
+
+            ~AutoCloseMap() {
+                if (this->process_handle != INVALID_HANDLE && R_SUCCEEDED(this->result)) {
+                    R_ASSERT(svcUnmapProcessMemory(this->mapped_address, this->process_handle, this->base_address, this->size));
+                }
+            }
+
+            Result GetResult() const {
+                return this->result;
+            }
+
+            bool IsSuccess() const {
+                return R_SUCCEEDED(this->result);
+            }
+
+            void Invalidate() {
+                this->process_handle = INVALID_HANDLE;
+            }
+    };
+
+    class MappedCodeMemory {
+        private:
+            Handle process_handle;
+            Result result;
+            uintptr_t dst_address;
+            uintptr_t src_address;
+            size_t size;
+        public:
+            MappedCodeMemory(Result init_res) : process_handle(INVALID_HANDLE), result(init_res), dst_address(0), src_address(0), size(0) {
+                /* ... */
+            }
+
+            MappedCodeMemory(Handle p_h, uintptr_t dst, uintptr_t src, size_t sz) : process_handle(p_h), dst_address(dst), src_address(src), size(sz) {
+                this->result = svcMapProcessCodeMemory(this->process_handle, this->dst_address, this->src_address, this->size);
+            }
+
+            ~MappedCodeMemory() {
+                if (this->process_handle != INVALID_HANDLE && R_SUCCEEDED(this->result) && this->size > 0) {
+                    R_ASSERT(svcUnmapProcessCodeMemory(this->process_handle, this->dst_address, this->src_address, this->size));
+                }
+            }
+
+            uintptr_t GetDstAddress() const {
+                return this->dst_address;
+            }
+
+            Result GetResult() const {
+                return this->result;
+            }
+
+            bool IsSuccess() const {
+                return R_SUCCEEDED(this->result);
+            }
+
+            void Invalidate() {
+                this->process_handle = INVALID_HANDLE;
+            }
+
+            MappedCodeMemory &operator=(MappedCodeMemory &&o) {
+                this->process_handle = o.process_handle;
+                this->result = o.result;
+                this->dst_address = o.dst_address;
+                this->src_address = o.src_address;
+                this->size = o.size;
+                o.Invalidate();
+                return *this;
+            }
+    };
+
+}