diff options
Diffstat (limited to 'src/debug/remgdb/helpers.c')
-rw-r--r-- | src/debug/remgdb/helpers.c | 139 |
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); + +} + + + |