Handled hooks and rules in Dalvik opcodes definitions.

1 files changed, 113 insertions, 0 deletions

diff --git a/src/arch/post.c b/src/arch/post.c
new file mode 100644
index 0000000..7d5f134
--- /dev/null
+++ b/src/arch/post.c
@@ -0,0 +1,113 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * post.c - traitements complémentaires à la phase de désassemblage
+ *
+ * Copyright (C) 2016 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  OpenIDA 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.
+ *
+ *  OpenIDA 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "post.h"
+
+
+#include <assert.h>
+
+
+#include "processor.h"
+#include "target.h"
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : instr   = instruction ARMv7 à traiter.                       *
+*                proc    = représentation de l'architecture utilisée.         *
+*                context = contexte associé à la phase de désassemblage.      *
+*                format  = accès aux données du binaire d'origine.            *
+*                index   = indice de l'opérande précisant le saut.            *
+*                type    = type du nouveau simple à mettre en place.          *
+*                                                                             *
+*  Description : Associe un symbole à la valeur ciblée par un opérande.       *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+void post_process_target_resolution(GArchInstruction *instr, GArchProcessor *proc, GProcContext *context, GBinFormat *format, size_t index, SymbolType type)
+{
+    GArchOperand *op;                       /* Opérande numérique en place */
+    virt_t addr;                            /* Adresse visée par le saut   */
+    MemoryDataSize ptr_size;                /* Taille de l'espace mémoire  */
+    GArchOperand *new;                      /* Instruction de ciblage      */
+    vmpa2t target;
+    mrange_t trange;                        /* Etendue du symbole à créer  */
+    VMPA_BUFFER(loc);
+    char name[5 + VMPA_MAX_LEN];
+    GBinRoutine *routine;                   /* Nouvelle routine trouvée    */
+    GBinSymbol *symbol;                     /* Nouveau symbole construit   */
+
+    op = g_arch_instruction_get_operand(instr, index);
+    assert(G_IS_IMM_OPERAND(op));
+
+    if (g_imm_operand_to_virt_t(G_IMM_OPERAND(op), &addr)
+        && g_exe_format_translate_address_into_vmpa(G_EXE_FORMAT(format), addr, &target))
+    {
+        ptr_size = g_arch_processor_get_memory_size(proc);
+
+        new = g_target_operand_new(ptr_size, addr);
+
+        if (!g_target_operand_resolve(G_TARGET_OPERAND(new), format, true))
+        {
+            vmpa2_virt_to_string(&target, MDS_UNDEFINED, loc, NULL);
+
+            switch (type)
+            {
+                case STP_ROUTINE:
+                    snprintf(name, sizeof(name), "loc_%s", loc + 2);
+                    break;
+
+                case STP_CODE_LABEL:
+                    snprintf(name, sizeof(name), "sub_%s", loc + 2);
+                    break;
+
+                default:
+                    assert(false);
+                    break;
+
+            }
+
+            routine = g_binary_routine_new();
+            g_binary_routine_set_name(routine, strdup(name));
+
+            init_mrange(&trange, &target, 0);
+            g_binary_routine_set_range(routine, &trange);
+
+            symbol = g_binary_symbol_new(type);
+            g_binary_symbol_attach_routine(symbol, routine);
+            g_binary_format_add_symbol(G_BIN_FORMAT(format), symbol);
+
+            g_target_operand_resolve(G_TARGET_OPERAND(new), format, true);
+
+        }
+
+        g_arch_instruction_replace_operand(instr, new, op);
+
+    }
+
+}