Add module defines

include/wums/common.h

@@ -34,6 +34,7 @@
 #include <unistd.h>
 #include <dirent.h>
 #include <stdbool.h>
+#include "defines/module_defines.h"
 
 #ifdef __cplusplus
 extern "C" {

include/wums/defines/dynamic_linking_defines.h

@@ -0,0 +1,61 @@
+/****************************************************************************
+ * Copyright (C) 2018 Maschell
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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 <stdint.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DYN_LINK_FUNCTION_NAME_LENGTH           351
+#define DYN_LINK_IMPORT_NAME_LENGTH             50
+
+#define DYN_LINK_FUNCTION_LIST_LENGTH           500
+#define DYN_LINK_IMPORT_LIST_LENGTH             50
+
+#define DYN_LINK_TRAMPOLIN_LIST_LENGTH          DYN_LINK_FUNCTION_LIST_LENGTH
+
+typedef struct _dyn_linking_function_t {
+    char functionName[DYN_LINK_FUNCTION_NAME_LENGTH + 1];
+    void *address;
+} dyn_linking_function_t;
+
+typedef struct _dyn_linking_import_t {
+    char importName[DYN_LINK_IMPORT_NAME_LENGTH + 1];
+    bool isData = false;
+} dyn_linking_import_t;
+
+typedef struct _dyn_linking_relocation_entry_t {
+    dyn_linking_function_t *functionEntry = NULL;
+    dyn_linking_import_t *importEntry = NULL;
+    void *destination = NULL;
+    char type;
+    size_t offset;
+    int32_t addend;
+} dyn_linking_relocation_entry_t;
+
+typedef struct _dyn_linking_relocation_data_t {
+    dyn_linking_function_t functions[DYN_LINK_FUNCTION_LIST_LENGTH];
+    dyn_linking_import_t imports[DYN_LINK_IMPORT_LIST_LENGTH];
+} dyn_linking_relocation_data_t;
+
+#ifdef __cplusplus
+}
+#endif

include/wums/defines/export_defines.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include <cstdint>
+
+#define EXPORT_MAXIMUM_NAME_LENGTH     50
+typedef struct export_data_t {
+    uint32_t type;
+    char name[EXPORT_MAXIMUM_NAME_LENGTH];
+    uint32_t address = 0;
+} export_data_t;

include/wums/defines/module_defines.h

@@ -0,0 +1,69 @@
+/****************************************************************************
+ * Copyright (C) 2018-2019 Maschell
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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 <stdint.h>
+#include <stddef.h>
+#include "dynamic_linking_defines.h"
+#include "relocation_defines.h"
+#include "export_defines.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MAXIMUM_MODULE_PATH_NAME_LENGTH                     256
+#define MAXIMUM_EXPORT_MODULE_NAME_LENGTH                   51
+
+#define DYN_LINK_RELOCATION_LIST_LENGTH                     500
+#define EXPORT_ENTRY_LIST_LENGTH                            100
+#define HOOK_ENTRY_LIST_LENGTH                              10
+
+typedef struct hook_data_t {
+    uint32_t type;
+    uint32_t target = 0;
+} hook_data_t;
+
+struct module_information_single_t {
+    char                            path[MAXIMUM_MODULE_PATH_NAME_LENGTH] = "";     // Path where the module is stored
+    dyn_linking_relocation_entry_t  linking_entries[DYN_LINK_RELOCATION_LIST_LENGTH];
+    char                            module_export_name[MAXIMUM_EXPORT_MODULE_NAME_LENGTH];
+    export_data_t                   export_entries[EXPORT_ENTRY_LIST_LENGTH];
+    hook_data_t                     hook_entries[HOOK_ENTRY_LIST_LENGTH];
+    int32_t                         priority;                                       // Priority of this module
+    uint32_t                        bssAddr;
+    uint32_t                        bssSize;
+    uint32_t                        sbssAddr;
+    uint32_t                        sbssSize;
+    uint32_t                        entrypoint;
+    uint32_t                        startAddress;
+    uint32_t                        endAddress;
+};
+
+#define MAXIMUM_MODULES                                     8
+
+struct module_information_t {
+    int32_t                         number_used_modules = 0;                        // Number of used function. Maximum is MAXIMUM_MODULES
+    dyn_linking_relocation_data_t   linking_data;
+    relocation_trampolin_entry_t    trampolines[DYN_LINK_TRAMPOLIN_LIST_LENGTH];
+    module_information_single_t     module_data[MAXIMUM_MODULES];
+};
+
+#ifdef __cplusplus
+}
+#endif

include/wums/defines/relocation_defines.h

@@ -0,0 +1,20 @@
+#pragma once
+#include <stdint.h>
+
+typedef enum RelocationTrampolinStatus{
+   RELOC_TRAMP_FREE                 = 0,
+   RELOC_TRAMP_FIXED                = 1,
+   RELOC_TRAMP_IMPORT_IN_PROGRESS   = 2,
+   RELOC_TRAMP_IMPORT_DONE          = 3,
+} RelocationTrampolinStatus;
+
+typedef enum RelocationType{
+   RELOC_TYPE_FIXED     = 0,
+   RELOC_TYPE_IMPORT   = 1
+} RelocationType;
+
+typedef struct relocation_trampolin_entry_t {
+    uint32_t id;
+    uint32_t trampolin[4];
+    RelocationTrampolinStatus status = RELOC_TRAMP_FREE;
+} relocation_trampolin_entry_t;