Improved the GDB client.

git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@175 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a

1 files changed, 139 insertions, 0 deletions

diff --git a/src/debug/remgdb/helpers.c b/src/debug/remgdb/helpers.c
new file mode 100644
index 0000000..9451b08
--- /dev/null
+++ b/src/debug/remgdb/helpers.c
@@ -0,0 +1,139 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * helpers.c - assistanat dans la manipulation des paquets GDB
+ *
+ * Copyright (C) 2010 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 "helpers.h"
+
+
+#include <regex.h>
+#include <string.h>
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+/* -------------------------- PAQUETS DES REPONSES D'ARRET -------------------------- */
+
+
+
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : packet = paquet de deonnées à interpréter.                   *
+*                sig    = identifiant du signal source. [OUT]                 *
+*                addr   = adresse de l'instruction courante. [OUT]            *
+*                thread = identifiant du thread concerné. [OUT]               *
+*                endian = boutisme de la plateforme ciblée.                   *
+*                                                                             *
+*  Description : Récupère les informations liées à un arrêt suite à signal.   *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : Les données sont la forme :                                  *
+*                T0505:00000000;04:a08de6bf;08:505878b7;thread:50dc;          *
+*                                                                             *
+******************************************************************************/
+
+bool get_stop_reply_sig_info(const GGdbPacket *packet, int *sig, vmpa_t *addr, pid_t *thread, SourceEndian endian)
+{
+    const char *data;                       /* Données brutes du paquet    */
+    size_t length;                          /* Quantité de ces données     */
+    uint8_t index;                          /* Indice de 8 bits quelconque */
+    size_t pos;                             /* Tête de lecture courante    */
+    regex_t preg;                           /* Expression régulière        */
+    int ret;                                /* Bilan d'un appel            */
+    regmatch_t pmatch[3];                   /* Zones remarquées            */
+    size_t key_len;                         /* Taille de l'indicatif       */
+
+    *addr = 0ull;
+
+    g_gdb_packet_get_data(packet, &data, &length, NULL);
+
+    pos = 1;
+
+    /* Lecture du numéro du signal */
+
+    if (!strtou8(&index, data, &pos, length, SRE_LITTLE))
+        return false;
+
+    *sig = index;
+
+    /* Reste des informations */
+
+    ret = regcomp(&preg, "([^:]+):([^;]+);", REG_EXTENDED | REG_ICASE);
+    if (ret != 0) return false;
+
+    for (ret = regexec(&preg, &data[pos], 3, pmatch, 0);
+         ret != REG_NOMATCH;
+         ret = regexec(&preg, &data[pos], 3, pmatch, 0))
+    {
+        key_len = pmatch[1].rm_eo - pmatch[1].rm_so;
+
+        /* Indication sur le thread */
+        if (key_len == strlen("thread")
+            && strncmp(&data[pos + pmatch[1].rm_so], "thread", key_len) == 0)
+        {
+
+            /* TODO printf("Thread found !\n"); */
+
+        }
+
+        /* Valeur de registre ? */
+        else if (key_len == 2)
+        {
+            if (!strtou8(&index, data, (size_t []) { pos + pmatch[1].rm_so }, length, SRE_LITTLE))
+                return false;
+
+            if (index != 8 /* FIXME */)
+                goto next_field;
+
+            if (!strtou32(addr, data, (size_t []) { pos + pmatch[2].rm_so }, length, SRE_LITTLE/* FIXME */))
+                return false;
+
+        }
+
+    next_field:
+        pos += pmatch[0].rm_eo;
+
+    }
+
+    regfree(&preg);
+
+    return (*addr != 0ull);
+
+}
+
+
+