Provided found MIPS routines.

git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@69 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a

1 files changed, 85 insertions, 0 deletions

diff --git a/src/format/elf/helper_mips.c b/src/format/elf/helper_mips.c
new file mode 100644
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--- /dev/null
+++ b/src/format/elf/helper_mips.c
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+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * helper_mips.c - gestion auxiliaire de l'architecture MIPS
+ *
+ * Copyright (C) 2009 Cyrille Bagard
+ *
+ *  This file is part of OpenIDA.
+ *
+ *  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 "helper_mips.h"
+
+
+#include <string.h>
+
+
+#include "elf-int.h"
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : format    = description de l'exécutable à compléter.         *
+*                dyn_start = début des informations dynamiques associées.     *
+*                dyn_size  = taille de la zone associée.                      *
+*                str_start = début de la zone de chaîne de caractères.        *
+*                str_size  = taille de la zone de chaînes de caractères.      *
+*                                                                             *
+*  Description : Déduit les adresses effectives des appels externes.          *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool g_elf_format_find_mips_dynamic_symbols(elf_format *format, off_t dyn_start, off_t dyn_size, off_t str_start, off_t str_size)
+{
+    off_t iter;                             /* Boucle de parcours          */
+    Elf_Sym symbol;                         /* Symbole ELF lu              */
+    off_t name_pos;                         /* Localisation du nom         */
+
+    if (dyn_size % ELF_SIZEOF_SYM(format) != 0) return false;
+
+    for (iter = dyn_start; iter < (dyn_start + dyn_size); iter += ELF_SIZEOF_SYM(format))
+    {
+        memcpy(&symbol, &EXE_FORMAT(format)->content[iter], ELF_SIZEOF_SYM(format));
+
+        if (ELF_ST_TYPE(ELF_SYM(format, symbol, st_info)) != STT_FUNC) continue;
+
+        if (ELF_SYM(format, symbol, st_value) == 0) continue;
+
+        name_pos = ELF_SYM(format, symbol, st_name);
+
+        /* Sécurité anti-débordements */
+        if (name_pos >= str_size) continue;
+
+        /* Si le symbole possède un nom... */
+        if (strlen(&EXE_FORMAT(format)->content[str_start + name_pos]) > 0)
+        {
+            format->symbols = (elf_symbol *)realloc(format->symbols, ++format->sym_count * sizeof(elf_symbol));
+
+            format->symbols[format->sym_count - 1].name = &EXE_FORMAT(format)->content[str_start + name_pos];
+            format->symbols[format->sym_count - 1].address = ELF_SYM(format, symbol, st_value);
+
+        }
+
+    }
+
+    return true;
+
+}