diff options
Diffstat (limited to 'plugins/arm/v7/registers')
| -rw-r--r-- | plugins/arm/v7/registers/Makefile.am | 23 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/banked.c | 726 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/banked.h | 114 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/basic.c | 461 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/basic.h | 70 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/coproc.c | 441 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/coproc.h | 70 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/simd.c | 534 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/simd.h | 82 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/special.c | 485 | ||||
| -rw-r--r-- | plugins/arm/v7/registers/special.h | 90 |
11 files changed, 3096 insertions, 0 deletions
diff --git a/plugins/arm/v7/registers/Makefile.am b/plugins/arm/v7/registers/Makefile.am new file mode 100644 index 0000000..49f7f82 --- /dev/null +++ b/plugins/arm/v7/registers/Makefile.am @@ -0,0 +1,23 @@ + +noinst_LTLIBRARIES = libarmv7registers.la + +libarmv7registers_la_SOURCES = \ + banked.h banked.c \ + basic.h basic.c \ + coproc.h coproc.c \ + simd.h simd.c \ + special.h special.c + +libarmv7registers_la_LIBADD = + +libarmv7registers_la_CFLAGS = $(AM_CFLAGS) + + +devdir = $(includedir)/chrysalide-$(subdir) + +dev_HEADERS = $(libarmv7registers_la_SOURCES:%c=) + + +AM_CPPFLAGS = $(LIBGTK_CFLAGS) $(LIBXML_CFLAGS) -I$(top_srcdir)/src + +AM_CFLAGS = $(DEBUG_CFLAGS) $(WARNING_FLAGS) $(COMPLIANCE_FLAGS) diff --git a/plugins/arm/v7/registers/banked.c b/plugins/arm/v7/registers/banked.c new file mode 100644 index 0000000..bce48dd --- /dev/null +++ b/plugins/arm/v7/registers/banked.c @@ -0,0 +1,726 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * banked.c - aides auxiliaires relatives aux registres de banque ARMv7 + * + * Copyright (C) 2018 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "banked.h" + + +#include <stdio.h> + + +#include "../register-int.h" + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +/* Représentation d'un registre de banque ARMv7 (instance) */ +struct _GArmV7BankedRegister +{ + GArmV7Register parent; /* Instance parente */ + +}; + +/* Représentation d'un registre de banque ARMv7 (classe) */ +struct _GArmV7BankedRegisterClass +{ + GArmV7RegisterClass parent; /* Classe parente */ + +}; + + +#define MAX_REGNAME_LEN 9 + + +/* Initialise la classe des registres de banque ARMv7. */ +static void g_armv7_banked_register_class_init(GArmV7BankedRegisterClass *); + +/* Initialise une instance de registre de banque ARMv7. */ +static void g_armv7_banked_register_init(GArmV7BankedRegister *); + +/* Supprime toutes les références externes. */ +static void g_armv7_banked_register_dispose(GArmV7BankedRegister *); + +/* Procède à la libération totale de la mémoire. */ +static void g_armv7_banked_register_finalize(GArmV7BankedRegister *); + +/* Traduit un registre en version humainement lisible. */ +static void g_armv7_banked_register_print(const GArmV7BankedRegister *, GBufferLine *, AsmSyntax); + +/* Convertit en indice des paramètres d'encodage. */ +static BankedRegisterTarget convert_r_sysm_to_target(uint8_t, uint8_t); + +/* Crée une réprésentation de registre de banque ARMv7. */ +static GArchRegister *_g_armv7_banked_register_new(BankedRegisterTarget); + + + +/* --------------------- TRANSPOSITIONS VIA CACHE DES REGISTRES --------------------- */ + + +/* Charge un registre depuis une mémoire tampon. */ +static GArchRegister *g_armv7_banked_register_unserialize(GArmV7BankedRegister *, GAsmStorage *, packed_buffer *); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Conservation des registres utilisés */ +static GArchRegister **_armv7_banked_registers = NULL; +static size_t _av7_banked_reg_count = 0; +G_LOCK_DEFINE_STATIC(_av7_banked_reg_mutex); + + +/* Fournit le singleton associé à un registre de banque ARMv7. */ +static GArchRegister *get_armv7_banked_register(BankedRegisterTarget); + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION UNITAIRE DES REGISTRES */ +/* ---------------------------------------------------------------------------------- */ + + +/* Indique le type défini pour une représentation d'un registre de banque ARMv7. */ +G_DEFINE_TYPE(GArmV7BankedRegister, g_armv7_banked_register, G_TYPE_ARMV7_REGISTER); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des registres de banque ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_banked_register_class_init(GArmV7BankedRegisterClass *klass) +{ + GObjectClass *object_class; /* Autre version de la classe */ + GArchRegisterClass *reg_class; /* Classe de haut niveau */ + + object_class = G_OBJECT_CLASS(klass); + reg_class = G_ARCH_REGISTER_CLASS(klass); + + object_class->dispose = (GObjectFinalizeFunc/* ! */)g_armv7_banked_register_dispose; + object_class->finalize = (GObjectFinalizeFunc)g_armv7_banked_register_finalize; + + reg_class->print = (reg_print_fc)g_armv7_banked_register_print; + reg_class->unserialize = (reg_unserialize_fc)g_armv7_banked_register_unserialize; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance à initialiser. * +* * +* Description : Initialise une instance de registre de banque ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_banked_register_init(GArmV7BankedRegister *reg) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Supprime toutes les références externes. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_banked_register_dispose(GArmV7BankedRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_banked_register_parent_class)->dispose(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Procède à la libération totale de la mémoire. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_banked_register_finalize(GArmV7BankedRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_banked_register_parent_class)->finalize(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à transcrire. * +* line = ligne tampon où imprimer l'opérande donné. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un registre en version humainement lisible. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_banked_register_print(const GArmV7BankedRegister *reg, GBufferLine *line, AsmSyntax syntax) +{ + BankedRegisterTarget target; /* Registre ciblé */ + char key[MAX_REGNAME_LEN]; /* Mot clef principal */ + size_t klen; /* Taille de ce mot clef */ + + target = G_ARM_REGISTER(reg)->index; + + switch (target) + { + case BRT_R8_USR: + klen = snprintf(key, MAX_REGNAME_LEN, "R8_usr"); + break; + case BRT_R9_USR: + klen = snprintf(key, MAX_REGNAME_LEN, "R9_usr"); + break; + case BRT_R10_USR: + klen = snprintf(key, MAX_REGNAME_LEN, "R10_usr"); + break; + case BRT_R11_USR: + klen = snprintf(key, MAX_REGNAME_LEN, "R11_usr"); + break; + case BRT_R12_USR: + klen = snprintf(key, MAX_REGNAME_LEN, "R12_usr"); + break; + case BRT_SP_USR: + klen = snprintf(key, MAX_REGNAME_LEN, "SP_usr"); + break; + case BRT_LR_USR: + klen = snprintf(key, MAX_REGNAME_LEN, "LR_usr"); + break; + + case BRT_R8_FIQ: + klen = snprintf(key, MAX_REGNAME_LEN, "R8_fiq"); + break; + case BRT_R9_FIQ: + klen = snprintf(key, MAX_REGNAME_LEN, "R9_fiq"); + break; + case BRT_R10_FIQ: + klen = snprintf(key, MAX_REGNAME_LEN, "R10_fiq"); + break; + case BRT_R11_FIQ: + klen = snprintf(key, MAX_REGNAME_LEN, "R11_fiq"); + break; + case BRT_R12_FIQ: + klen = snprintf(key, MAX_REGNAME_LEN, "R12_fiq"); + break; + case BRT_SP_FIQ: + klen = snprintf(key, MAX_REGNAME_LEN, "SP_fiq"); + break; + case BRT_LR_FIQ: + klen = snprintf(key, MAX_REGNAME_LEN, "LR_fiq"); + break; + + case BRT_LR_IRQ: + klen = snprintf(key, MAX_REGNAME_LEN, "LR_irq"); + break; + case BRT_SP_IRQ: + klen = snprintf(key, MAX_REGNAME_LEN, "SP_irq"); + break; + case BRT_LR_SVC: + klen = snprintf(key, MAX_REGNAME_LEN, "LR_svc"); + break; + case BRT_SP_SVC: + klen = snprintf(key, MAX_REGNAME_LEN, "SP_svc"); + break; + case BRT_LR_ABT: + klen = snprintf(key, MAX_REGNAME_LEN, "LR_abt"); + break; + case BRT_SP_ABT: + klen = snprintf(key, MAX_REGNAME_LEN, "SP_abt"); + break; + case BRT_LR_UND: + klen = snprintf(key, MAX_REGNAME_LEN, "LR_und"); + break; + case BRT_SP_UND: + klen = snprintf(key, MAX_REGNAME_LEN, "SP_und"); + break; + + case BRT_LR_MON: + klen = snprintf(key, MAX_REGNAME_LEN, "LR_mon"); + break; + case BRT_SP_MON: + klen = snprintf(key, MAX_REGNAME_LEN, "SP_mon"); + break; + case BRT_ELR_HYP: + klen = snprintf(key, MAX_REGNAME_LEN, "ELR_hyp"); + break; + case BRT_SP_HYP: + klen = snprintf(key, MAX_REGNAME_LEN, "SP_hyp"); + break; + + case BRT_SPSR_IRQ: + klen = snprintf(key, MAX_REGNAME_LEN, "SPSR_irq"); + break; + case BRT_SPSR_SVC: + klen = snprintf(key, MAX_REGNAME_LEN, "SPSR_svc"); + break; + + default: + klen = snprintf(key, MAX_REGNAME_LEN, "???"); + break; + + } + + g_buffer_line_append_text(line, BLC_ASSEMBLY, key, klen, RTT_REGISTER, NULL); + +} + + +/****************************************************************************** +* * +* Paramètres : r = premier champ à interpréter. * +* sysm = second champ à interpréter. * +* * +* Description : Convertit en indice des paramètres d'encodage. * +* * +* Retour : Registre ciblé ou BRT_COUNT en cas d'invalidité. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static BankedRegisterTarget convert_r_sysm_to_target(uint8_t r, uint8_t sysm) +{ + BankedRegisterTarget result; /* Cible effective à retourner */ + uint8_t sysm_20; /* Décomposition en bits #1 */ + uint8_t sysm_43; /* Décomposition en bits #2 */ + + result = BRT_COUNT; + + sysm_20 = (sysm & 0x3); + sysm_43 = (sysm & 0x18) >> 3; + + if (r == 0) + { + switch (sysm_43) + { + case 0b00: + switch (sysm_20) + { + case 0b000: + result = BRT_R8_USR; + break; + case 0b001: + result = BRT_R9_USR; + break; + case 0b010: + result = BRT_R10_USR; + break; + case 0b011: + result = BRT_R11_USR; + break; + case 0b100: + result = BRT_R12_USR; + break; + case 0b101: + result = BRT_SP_USR; + break; + case 0b110: + result = BRT_LR_USR; + break; + } + break; + + case 0b01: + switch (sysm_20) + { + case 0b000: + result = BRT_R8_FIQ; + break; + case 0b001: + result = BRT_R9_FIQ; + break; + case 0b010: + result = BRT_R10_FIQ; + break; + case 0b011: + result = BRT_R11_FIQ; + break; + case 0b100: + result = BRT_R12_FIQ; + break; + case 0b101: + result = BRT_SP_FIQ; + break; + case 0b110: + result = BRT_LR_FIQ; + break; + } + break; + + case 0b10: + switch (sysm_20) + { + case 0b000: + result = BRT_LR_IRQ; + break; + case 0b001: + result = BRT_SP_IRQ; + break; + case 0b010: + result = BRT_LR_SVC; + break; + case 0b011: + result = BRT_SP_SVC; + break; + case 0b100: + result = BRT_LR_ABT; + break; + case 0b101: + result = BRT_SP_ABT; + break; + case 0b110: + result = BRT_LR_UND; + break; + case 0b111: + result = BRT_SP_UND; + break; + } + break; + + case 0b11: + switch (sysm_20) + { + case 0b100: + result = BRT_LR_MON; + break; + case 0b101: + result = BRT_SP_MON; + break; + case 0b110: + result = BRT_ELR_HYP; + break; + case 0b111: + result = BRT_SP_HYP; + break; + } + break; + + } + + } + + else if (r == 1) + { + switch (sysm_43) + { + case 0b10: + switch (sysm_20) + { + case 0b000: + result = BRT_SPSR_IRQ; + break; + case 0b010: + result = BRT_SPSR_SVC; + break; + } + break; + + } + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : target = registre effectivement ciblé. * +* * +* Description : Crée une réprésentation de registre de banque ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *_g_armv7_banked_register_new(BankedRegisterTarget target) +{ + GArmV7BankedRegister *result; /* Structure à retourner */ + + if (target >= BRT_COUNT) + goto bad_values; + + result = g_object_new(G_TYPE_ARMV7_BANKED_REGISTER, NULL); + + G_ARM_REGISTER(result)->index = target; + + return G_ARCH_REGISTER(result); + + bad_values: + + return NULL; + +} + + +/****************************************************************************** +* * +* Paramètres : r = premier champ à interpréter. * +* sysm = second champ à interpréter. * +* * +* Description : Crée une réprésentation de registre de banque ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchRegister *g_armv7_banked_register_new(uint8_t r, uint8_t sysm) +{ + GArchRegister *result; /* Structure à retourner */ + BankedRegisterTarget target; /* Registre effectivement ciblé*/ + + target = convert_r_sysm_to_target(r, sysm); + + if (target >= BRT_COUNT) + goto bad_values; + + result = get_armv7_banked_register(target); + + return result; + + bad_values: + + return NULL; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à consulter. * +* * +* Description : Fournit le registre de banque ciblé. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +BankedRegisterTarget g_armv7_banked_register_get_target(const GArmV7BankedRegister *reg) +{ + BankedRegisterTarget result; /* Cible à retourner */ + + result = G_ARM_REGISTER(reg)->index; + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* TRANSPOSITIONS VIA CACHE DES OPERANDES */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : reg = registre d'architecture à constituer. * +* storage = mécanisme de sauvegarde à manipuler. * +* pbuf = zone tampon à remplir. * +* * +* Description : Charge un registre depuis une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *g_armv7_banked_register_unserialize(GArmV7BankedRegister *reg, GAsmStorage *storage, packed_buffer *pbuf) +{ + GArchRegister *result; /* Instance à retourner */ + uint8_t index; /* Indice du registre */ + bool status; /* Bilan d'une extraction */ + GArchRegisterClass *parent; /* Classe parente à consulter */ + + status = extract_packed_buffer(pbuf, &index, sizeof(uint8_t), false); + + if (status) + { + result = get_armv7_banked_register(index); + + if (result == NULL) + g_object_unref(G_OBJECT(reg)); + + } + + else + { + g_object_unref(G_OBJECT(reg)); + result = NULL; + } + + if (result != NULL) + { + parent = G_ARCH_REGISTER_CLASS(g_armv7_banked_register_parent_class); + + result = parent->unserialize(result, storage, pbuf); + + } + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION SOUS FORME DE SINGLETONS */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : target = registre effectivement ciblé. * +* * +* Description : Fournit le singleton associé à un registre de banque ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *get_armv7_banked_register(BankedRegisterTarget target) +{ + GArchRegister *result; /* Structure à retourner */ + size_t new_count; /* Nouvelle taille à considérer*/ + size_t i; /* Boucle de parcours */ + + G_LOCK(_av7_banked_reg_mutex); + + if (target >= _av7_banked_reg_count) + { + /** + * On valide déjà le fait que le registre puisse être créé + * avant de réaliser une allocation potentiellement énorme + * avec un indice démesuré. + */ + + result = _g_armv7_banked_register_new(target); + + if (result == NULL) + goto bad_values; + + new_count = target + 1; + + _armv7_banked_registers = realloc(_armv7_banked_registers, new_count * sizeof(GArchRegister *)); + + for (i = _av7_banked_reg_count; i < new_count; i++) + _armv7_banked_registers[i] = NULL; + + _av7_banked_reg_count = new_count; + + } + + else + result = NULL; + + if (_armv7_banked_registers[target] == NULL) + { + if (result != NULL) + _armv7_banked_registers[target] = result; + else + _armv7_banked_registers[target] = _g_armv7_banked_register_new(target); + } + + result = _armv7_banked_registers[target]; + + G_UNLOCK(_av7_banked_reg_mutex); + + g_object_ref(G_OBJECT(result)); + + bad_values: + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Vide totalement le cache des registres de banque ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void clean_armv7_banked_register_cache(void) +{ + size_t i; /* Boucle de parcours */ + + G_LOCK(_av7_banked_reg_mutex); + + for (i = 0; i < _av7_banked_reg_count; i++) + g_object_unref(G_OBJECT(_armv7_banked_registers[i])); + + if (_armv7_banked_registers != NULL) + free(_armv7_banked_registers); + + _armv7_banked_registers = NULL; + _av7_banked_reg_count = 0; + + G_UNLOCK(_av7_banked_reg_mutex); + +} diff --git a/plugins/arm/v7/registers/banked.h b/plugins/arm/v7/registers/banked.h new file mode 100644 index 0000000..55d137b --- /dev/null +++ b/plugins/arm/v7/registers/banked.h @@ -0,0 +1,114 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * banked.h - prototypes pour les aides auxiliaires relatives aux registres de banque ARMv7 + * + * Copyright (C) 2018 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _PLUGINS_ARM_V7_REGISTERS_BANKED_H +#define _PLUGINS_ARM_V7_REGISTERS_BANKED_H + + +#include <glib-object.h> +#include <stdint.h> + + +#include <arch/register.h> + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +#define G_TYPE_ARMV7_BANKED_REGISTER g_armv7_banked_register_get_type() +#define G_ARMV7_BANKED_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_ARMV7_BANKED_REGISTER, GArmV7BankedRegister)) +#define G_IS_ARMV7_BANKED_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_ARMV7_BANKED_REGISTER)) +#define G_ARMV7_BANKED_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_ARMV7_BANKED_REGISTER, GArmV7BankedRegisterClass)) +#define G_IS_ARMV7_BANKED_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_ARMV7_BANKED_REGISTER)) +#define G_ARMV7_BANKED_REGISTER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_ARMV7_BANKED_REGISTER, GArmV7BankedRegisterClass)) + + +/* Représentation d'un registre de banque ARMv7 (instance) */ +typedef struct _GArmV7BankedRegister GArmV7BankedRegister; + +/* Représentation d'un registre de banque ARMv7 (classe) */ +typedef struct _GArmV7BankedRegisterClass GArmV7BankedRegisterClass; + + +/* Liste des registres de banque */ +typedef enum _BankedRegisterTarget +{ + BRT_R8_USR, + BRT_R9_USR, + BRT_R10_USR, + BRT_R11_USR, + BRT_R12_USR, + BRT_SP_USR, + BRT_LR_USR, + + BRT_R8_FIQ, + BRT_R9_FIQ, + BRT_R10_FIQ, + BRT_R11_FIQ, + BRT_R12_FIQ, + BRT_SP_FIQ, + BRT_LR_FIQ, + + BRT_LR_IRQ, + BRT_SP_IRQ, + BRT_LR_SVC, + BRT_SP_SVC, + BRT_LR_ABT, + BRT_SP_ABT, + BRT_LR_UND, + BRT_SP_UND, + + BRT_LR_MON, + BRT_SP_MON, + BRT_ELR_HYP, + BRT_SP_HYP, + + BRT_SPSR_IRQ, + BRT_SPSR_SVC, + + BRT_COUNT + +} BankedRegisterTarget; + + +/* Indique le type défini pour une représentation d'un registre de banque ARMv7. */ +GType g_armv7_banked_register_get_type(void); + +/* Crée une réprésentation de registre de banque ARMv7. */ +GArchRegister *g_armv7_banked_register_new(uint8_t, uint8_t); + +/* Fournit le registre de banque ciblé. */ +BankedRegisterTarget g_armv7_banked_register_get_target(const GArmV7BankedRegister *); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Vide totalement le cache des registres de banque ARMv7. */ +void clean_armv7_banked_register_cache(void); + + + +#endif /* _PLUGINS_ARM_V7_REGISTERS_BANKED_H */ diff --git a/plugins/arm/v7/registers/basic.c b/plugins/arm/v7/registers/basic.c new file mode 100644 index 0000000..aed9001 --- /dev/null +++ b/plugins/arm/v7/registers/basic.c @@ -0,0 +1,461 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * basic.c - aides auxiliaires relatives aux registres de base ARMv7 + * + * Copyright (C) 2018 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "basic.h" + + +#include <stdio.h> + + +#include "../register-int.h" + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +/* Représentation d'un registre de base ARMv7 (instance) */ +struct _GArmV7BasicRegister +{ + GArmV7Register parent; /* Instance parente */ + +}; + +/* Représentation d'un registre de base ARMv7 (classe) */ +struct _GArmV7BasicRegisterClass +{ + GArmV7RegisterClass parent; /* Classe parente - */ + +}; + + +#define MAX_REGNAME_LEN 8 + + +/* Initialise la classe des registres de base ARMv7. */ +static void g_armv7_basic_register_class_init(GArmV7BasicRegisterClass *); + +/* Initialise une instance de registre de base ARMv7. */ +static void g_armv7_basic_register_init(GArmV7BasicRegister *); + +/* Supprime toutes les références externes. */ +static void g_armv7_basic_register_dispose(GArmV7BasicRegister *); + +/* Procède à la libération totale de la mémoire. */ +static void g_armv7_basic_register_finalize(GArmV7BasicRegister *); + +/* Traduit un registre en version humainement lisible. */ +static void g_armv7_basic_register_print(const GArmV7BasicRegister *, GBufferLine *, AsmSyntax); + +/* Crée une réprésentation de registre de base ARMv7. */ +static GArchRegister *_g_armv7_basic_register_new(uint8_t); + + + +/* --------------------- TRANSPOSITIONS VIA CACHE DES REGISTRES --------------------- */ + + +/* Charge un registre depuis une mémoire tampon. */ +static GArchRegister *g_armv7_basic_register_unserialize(GArmV7BasicRegister *, GAsmStorage *, packed_buffer *); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Conservation des registres utilisés */ +static GArchRegister **_armv7_basic_registers = NULL; +static size_t _av7_basic_reg_count = 0; +G_LOCK_DEFINE_STATIC(_av7_basic_reg_mutex); + + +/* Fournit le singleton associé à un registre de base ARMv7. */ +static GArchRegister *get_armv7_basic_register(uint8_t); + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION UNITAIRE DES REGISTRES */ +/* ---------------------------------------------------------------------------------- */ + + +/* Indique le type défini pour une représentation d'un registre de base ARMv7. */ +G_DEFINE_TYPE(GArmV7BasicRegister, g_armv7_basic_register, G_TYPE_ARMV7_REGISTER); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des registres de base ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_basic_register_class_init(GArmV7BasicRegisterClass *klass) +{ + GObjectClass *object_class; /* Autre version de la classe */ + GArchRegisterClass *reg_class; /* Classe de haut niveau */ + + object_class = G_OBJECT_CLASS(klass); + reg_class = G_ARCH_REGISTER_CLASS(klass); + + object_class->dispose = (GObjectFinalizeFunc/* ! */)g_armv7_basic_register_dispose; + object_class->finalize = (GObjectFinalizeFunc)g_armv7_basic_register_finalize; + + reg_class->print = (reg_print_fc)g_armv7_basic_register_print; + reg_class->unserialize = (reg_unserialize_fc)g_armv7_basic_register_unserialize; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance à initialiser. * +* * +* Description : Initialise une instance de registre de base ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_basic_register_init(GArmV7BasicRegister *reg) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Supprime toutes les références externes. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_basic_register_dispose(GArmV7BasicRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_basic_register_parent_class)->dispose(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Procède à la libération totale de la mémoire. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_basic_register_finalize(GArmV7BasicRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_basic_register_parent_class)->finalize(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à transcrire. * +* line = ligne tampon où imprimer l'opérande donné. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un registre en version humainement lisible. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_basic_register_print(const GArmV7BasicRegister *reg, GBufferLine *line, AsmSyntax syntax) +{ + char key[MAX_REGNAME_LEN]; /* Mot clef principal */ + size_t klen; /* Taille de ce mot clef */ + + switch (G_ARM_REGISTER(reg)->index) + { + case 0 ... 10: + klen = snprintf(key, MAX_REGNAME_LEN, "r%hhu", G_ARM_REGISTER(reg)->index); + break; + case 11: + klen = snprintf(key, MAX_REGNAME_LEN, "fp"); + break; + case 12: + klen = snprintf(key, MAX_REGNAME_LEN, "ip"); + break; + case 13: + klen = snprintf(key, MAX_REGNAME_LEN, "sp"); + break; + case 14: + klen = snprintf(key, MAX_REGNAME_LEN, "lr"); + break; + case 15: + klen = snprintf(key, MAX_REGNAME_LEN, "pc"); + break; + case 16: + klen = snprintf(key, MAX_REGNAME_LEN, "cpsr"); + break; + case 17: + klen = snprintf(key, MAX_REGNAME_LEN, "spsr"); + break; + default: + klen = snprintf(key, MAX_REGNAME_LEN, "r??"); + break; + } + + g_buffer_line_append_text(line, BLC_ASSEMBLY, key, klen, RTT_REGISTER, NULL); + +} + + +/****************************************************************************** +* * +* Paramètres : index = indice du registre correspondant. * +* * +* Description : Crée une réprésentation de registre de base ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *_g_armv7_basic_register_new(uint8_t index) +{ + GArmV7BasicRegister *result; /* Structure à retourner */ + + if (index > 17) + goto bad_index; + + result = g_object_new(G_TYPE_ARMV7_BASIC_REGISTER, NULL); + + G_ARM_REGISTER(result)->index = index; + + return G_ARCH_REGISTER(result); + + bad_index: + + return NULL; + +} + + +/****************************************************************************** +* * +* Paramètres : index = indice du registre correspondant. * +* * +* Description : Crée une réprésentation de registre de base ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchRegister *g_armv7_basic_register_new(uint8_t index) +{ + GArchRegister *result; /* Structure à retourner */ + + result = get_armv7_basic_register(index); + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* TRANSPOSITIONS VIA CACHE DES OPERANDES */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : reg = registre d'architecture à constituer. * +* storage = mécanisme de sauvegarde à manipuler. * +* pbuf = zone tampon à remplir. * +* * +* Description : Charge un registre depuis une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *g_armv7_basic_register_unserialize(GArmV7BasicRegister *reg, GAsmStorage *storage, packed_buffer *pbuf) +{ + GArchRegister *result; /* Instance à retourner */ + uint8_t index; /* Indice du registre */ + bool status; /* Bilan d'une extraction */ + GArchRegisterClass *parent; /* Classe parente à consulter */ + + status = extract_packed_buffer(pbuf, &index, sizeof(uint8_t), false); + + if (status) + { + result = get_armv7_basic_register(index); + + if (result == NULL) + g_object_unref(G_OBJECT(reg)); + + } + + else + { + g_object_unref(G_OBJECT(reg)); + result = NULL; + } + + if (result != NULL) + { + parent = G_ARCH_REGISTER_CLASS(g_armv7_basic_register_parent_class); + + result = parent->unserialize(result, storage, pbuf); + + } + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION SOUS FORME DE SINGLETONS */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : index = indice du registre correspondant. * +* * +* Description : Fournit le singleton associé à un registre de base ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *get_armv7_basic_register(uint8_t index) +{ + GArchRegister *result; /* Structure à retourner */ + size_t new_count; /* Nouvelle taille à considérer*/ + size_t i; /* Boucle de parcours */ + + G_LOCK(_av7_basic_reg_mutex); + + if (index >= _av7_basic_reg_count) + { + /** + * On valide déjà le fait que le registre puisse être créé + * avant de réaliser une allocation potentiellement énorme + * avec un indice démesuré. + */ + + result = _g_armv7_basic_register_new(index); + + if (result == NULL) + goto bad_index; + + new_count = index + 1; + + _armv7_basic_registers = realloc(_armv7_basic_registers, new_count * sizeof(GArchRegister *)); + + for (i = _av7_basic_reg_count; i < new_count; i++) + _armv7_basic_registers[i] = NULL; + + _av7_basic_reg_count = new_count; + + } + + else + result = NULL; + + if (_armv7_basic_registers[index] == NULL) + { + if (result != NULL) + _armv7_basic_registers[index] = result; + else + _armv7_basic_registers[index] = _g_armv7_basic_register_new(index); + } + + result = _armv7_basic_registers[index]; + + G_UNLOCK(_av7_basic_reg_mutex); + + g_object_ref(G_OBJECT(result)); + + bad_index: + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Vide totalement le cache des registres de base ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void clean_armv7_basic_register_cache(void) +{ + size_t i; /* Boucle de parcours */ + + G_LOCK(_av7_basic_reg_mutex); + + for (i = 0; i < _av7_basic_reg_count; i++) + g_object_unref(G_OBJECT(_armv7_basic_registers[i])); + + if (_armv7_basic_registers != NULL) + free(_armv7_basic_registers); + + _armv7_basic_registers = NULL; + _av7_basic_reg_count = 0; + + G_UNLOCK(_av7_basic_reg_mutex); + +} diff --git a/plugins/arm/v7/registers/basic.h b/plugins/arm/v7/registers/basic.h new file mode 100644 index 0000000..bec4747 --- /dev/null +++ b/plugins/arm/v7/registers/basic.h @@ -0,0 +1,70 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * basic.h - prototypes pour les aides auxiliaires relatives aux registres de base ARMv7 + * + * Copyright (C) 2018 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _PLUGINS_ARM_V7_REGISTERS_BASIC_H +#define _PLUGINS_ARM_V7_REGISTERS_BASIC_H + + +#include <glib-object.h> +#include <stdint.h> + + +#include <arch/register.h> + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +#define G_TYPE_ARMV7_BASIC_REGISTER g_armv7_basic_register_get_type() +#define G_ARMV7_BASIC_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_ARMV7_BASIC_REGISTER, GArmV7BasicRegister)) +#define G_IS_ARMV7_BASIC_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_ARMV7_BASIC_REGISTER)) +#define G_ARMV7_BASIC_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_ARMV7_BASIC_REGISTER, GArmV7BasicRegisterClass)) +#define G_IS_ARMV7_BASIC_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_ARMV7_BASIC_REGISTER)) +#define G_ARMV7_BASIC_REGISTER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_ARMV7_BASIC_REGISTER, GArmV7BasicRegisterClass)) + + +/* Représentation d'un registre de base ARMv7 (instance) */ +typedef struct _GArmV7BasicRegister GArmV7BasicRegister; + +/* Représentation d'un registre de base ARMv7 (classe) */ +typedef struct _GArmV7BasicRegisterClass GArmV7BasicRegisterClass; + + +/* Indique le type défini pour une représentation d'un registre de base ARMv7. */ +GType g_armv7_basic_register_get_type(void); + +/* Crée une réprésentation de registre de base ARMv7. */ +GArchRegister *g_armv7_basic_register_new(uint8_t); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Vide totalement le cache des registres de base ARMv7. */ +void clean_armv7_basic_register_cache(void); + + + +#endif /* _PLUGINS_ARM_V7_REGISTERS_BASIC_H */ diff --git a/plugins/arm/v7/registers/coproc.c b/plugins/arm/v7/registers/coproc.c new file mode 100644 index 0000000..f1dc3bc --- /dev/null +++ b/plugins/arm/v7/registers/coproc.c @@ -0,0 +1,441 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * coproc.c - aides auxiliaires relatives aux registres de co-processeur ARMv7 + * + * Copyright (C) 2016-2017 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "coproc.h" + + +#include <stdio.h> + + +#include "../register-int.h" + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +/* Représentation d'un registre de co-processeur ARMv7 (instance) */ +struct _GArmV7CpRegister +{ + GArmV7Register parent; /* Instance parente */ + +}; + + +/* Représentation d'un registre de co-processeur ARMv7 (classe) */ +struct _GArmV7CpRegisterClass +{ + GArmV7RegisterClass parent; /* Classe parente */ + +}; + + +#define MAX_REGNAME_LEN 5 + + +/* Initialise la classe des registres de co-processeur ARMv7. */ +static void g_armv7_cp_register_class_init(GArmV7CpRegisterClass *); + +/* Initialise une instance de registre de co-processeur ARMv7. */ +static void g_armv7_cp_register_init(GArmV7CpRegister *); + +/* Supprime toutes les références externes. */ +static void g_armv7_cp_register_dispose(GArmV7CpRegister *); + +/* Procède à la libération totale de la mémoire. */ +static void g_armv7_cp_register_finalize(GArmV7CpRegister *); + +/* Traduit un registre en version humainement lisible. */ +static void g_armv7_cp_register_print(const GArmV7CpRegister *, GBufferLine *, AsmSyntax); + +/* Crée une réprésentation de registre de co-processeur ARMv7. */ +static GArchRegister *_g_armv7_cp_register_new(uint8_t); + + + +/* --------------------- TRANSPOSITIONS VIA CACHE DES REGISTRES --------------------- */ + + +/* Charge un registre depuis une mémoire tampon. */ +static GArchRegister *g_armv7_cp_register_unserialize(GArmV7CpRegister *, GAsmStorage *, packed_buffer *); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Conservation des registres utilisés */ +static GArchRegister **_armv7_cp_registers = NULL; +static size_t _av7_cp_reg_count = 0; +G_LOCK_DEFINE_STATIC(_av7_cp_reg_mutex); + + +/* Fournit le singleton associé à un registre de co-proc. ARMv7. */ +static GArchRegister *get_armv7_cp_register(uint8_t); + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION UNITAIRE DES REGISTRES */ +/* ---------------------------------------------------------------------------------- */ + + +/* Indique le type défini pour une représentation d'un registre de co-processeur ARMv7. */ +G_DEFINE_TYPE(GArmV7CpRegister, g_armv7_cp_register, G_TYPE_ARMV7_REGISTER); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des registres de co-processeur ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_cp_register_class_init(GArmV7CpRegisterClass *klass) +{ + GObjectClass *object_class; /* Autre version de la classe */ + GArchRegisterClass *reg_class; /* Classe de haut niveau */ + + object_class = G_OBJECT_CLASS(klass); + reg_class = G_ARCH_REGISTER_CLASS(klass); + + object_class->dispose = (GObjectFinalizeFunc/* ! */)g_armv7_cp_register_dispose; + object_class->finalize = (GObjectFinalizeFunc)g_armv7_cp_register_finalize; + + reg_class->print = (reg_print_fc)g_armv7_cp_register_print; + reg_class->unserialize = (reg_unserialize_fc)g_armv7_cp_register_unserialize; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance à initialiser. * +* * +* Description : Initialise une instance de registre de co-processeur ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_cp_register_init(GArmV7CpRegister *reg) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Supprime toutes les références externes. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_cp_register_dispose(GArmV7CpRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_cp_register_parent_class)->dispose(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Procède à la libération totale de la mémoire. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_cp_register_finalize(GArmV7CpRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_cp_register_parent_class)->finalize(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à transcrire. * +* line = ligne tampon où imprimer l'opérande donné. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un registre en version humainement lisible. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_cp_register_print(const GArmV7CpRegister *reg, GBufferLine *line, AsmSyntax syntax) +{ + char key[MAX_REGNAME_LEN]; /* Mot clef principal */ + size_t klen; /* Taille de ce mot clef */ + + switch (G_ARM_REGISTER(reg)->index) + { + case 0 ... 15: + klen = snprintf(key, MAX_REGNAME_LEN, "cp%hhu", G_ARM_REGISTER(reg)->index); + break; + default: + klen = snprintf(key, MAX_REGNAME_LEN, "cp??"); + break; + } + + g_buffer_line_append_text(line, BLC_ASSEMBLY, key, klen, RTT_REGISTER, NULL); + +} + + +/****************************************************************************** +* * +* Paramètres : index = indice du registre correspondant. * +* * +* Description : Crée une réprésentation de registre de co-processeur ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *_g_armv7_cp_register_new(uint8_t index) +{ + GArmV7CpRegister *result; /* Structure à retourner */ + + if (index > 15) + goto bad_index; + + result = g_object_new(G_TYPE_ARMV7_CP_REGISTER, NULL); + + G_ARM_REGISTER(result)->index = index; + + return G_ARCH_REGISTER(result); + + bad_index: + + return NULL; + +} + + +/****************************************************************************** +* * +* Paramètres : index = indice du registre correspondant. * +* * +* Description : Crée une réprésentation de registre de co-processeur ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchRegister *g_armv7_cp_register_new(uint8_t index) +{ + GArchRegister *result; /* Structure à retourner */ + + result = get_armv7_cp_register(index); + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* TRANSPOSITIONS VIA CACHE DES OPERANDES */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : reg = registre d'architecture à constituer. * +* storage = mécanisme de sauvegarde à manipuler. * +* pbuf = zone tampon à remplir. * +* * +* Description : Charge un registre depuis une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *g_armv7_cp_register_unserialize(GArmV7CpRegister *reg, GAsmStorage *storage, packed_buffer *pbuf) +{ + GArchRegister *result; /* Instance à retourner */ + uint8_t index; /* Indice du registre */ + bool status; /* Bilan d'une extraction */ + GArchRegisterClass *parent; /* Classe parente à consulter */ + + status = extract_packed_buffer(pbuf, &index, sizeof(uint8_t), false); + + if (status) + { + result = get_armv7_cp_register(index); + + if (result == NULL) + g_object_unref(G_OBJECT(reg)); + + } + + else + { + g_object_unref(G_OBJECT(reg)); + result = NULL; + } + + if (result != NULL) + { + parent = G_ARCH_REGISTER_CLASS(g_armv7_cp_register_parent_class); + + result = parent->unserialize(result, storage, pbuf); + + } + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION SOUS FORME DE SINGLETONS */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : index = indice du registre correspondant. * +* * +* Description : Fournit le singleton associé à un registre de co-proc. ARMv7.* +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *get_armv7_cp_register(uint8_t index) +{ + GArchRegister *result; /* Structure à retourner */ + size_t new_count; /* Nouvelle taille à considérer*/ + size_t i; /* Boucle de parcours */ + + G_LOCK(_av7_cp_reg_mutex); + + if (index >= _av7_cp_reg_count) + { + /** + * On valide déjà le fait que le registre puisse être créé + * avant de réaliser une allocation potentiellement énorme + * avec un indice démesuré. + */ + + result = _g_armv7_cp_register_new(index); + + if (result == NULL) + goto bad_index; + + new_count = index + 1; + + _armv7_cp_registers = realloc(_armv7_cp_registers, new_count * sizeof(GArchRegister *)); + + for (i = _av7_cp_reg_count; i < new_count; i++) + _armv7_cp_registers[i] = NULL; + + _av7_cp_reg_count = new_count; + + } + + else + result = NULL; + + if (_armv7_cp_registers[index] == NULL) + { + if (result != NULL) + _armv7_cp_registers[index] = result; + else + _armv7_cp_registers[index] = _g_armv7_cp_register_new(index); + } + + result = _armv7_cp_registers[index]; + + G_UNLOCK(_av7_cp_reg_mutex); + + g_object_ref(G_OBJECT(result)); + + bad_index: + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Vide totalement le cache des registres ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void clean_armv7_cp_register_cache(void) +{ + size_t i; /* Boucle de parcours */ + + G_LOCK(_av7_cp_reg_mutex); + + for (i = 0; i < _av7_cp_reg_count; i++) + g_object_unref(G_OBJECT(_armv7_cp_registers[i])); + + if (_armv7_cp_registers != NULL) + free(_armv7_cp_registers); + + _armv7_cp_registers = NULL; + _av7_cp_reg_count = 0; + + G_UNLOCK(_av7_cp_reg_mutex); + +} diff --git a/plugins/arm/v7/registers/coproc.h b/plugins/arm/v7/registers/coproc.h new file mode 100644 index 0000000..200b721 --- /dev/null +++ b/plugins/arm/v7/registers/coproc.h @@ -0,0 +1,70 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * coproc.h - prototypes pour les aides auxiliaires relatives aux registres de co-processeur ARMv7 + * + * Copyright (C) 2016-2017 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _PLUGINS_ARM_V7_REGISTERS_COPROC_H +#define _PLUGINS_ARM_V7_REGISTERS_COPROC_H + + +#include <glib-object.h> +#include <stdint.h> + + +#include <arch/register.h> + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +#define G_TYPE_ARMV7_CP_REGISTER g_armv7_cp_register_get_type() +#define G_ARMV7_CP_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_ARMV7_CP_REGISTER, GArmV7CpRegister)) +#define G_IS_ARMV7_CP_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_ARMV7_CP_REGISTER)) +#define G_ARMV7_CP_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_ARMV7_CP_REGISTER, GArmV7CpRegisterClass)) +#define G_IS_ARMV7_CP_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_ARMV7_CP_REGISTER)) +#define G_ARMV7_CP_REGISTER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_ARMV7_CP_REGISTER, GArmV7CpRegisterClass)) + + +/* Représentation d'un registre de co-processeur ARMv7 (instance) */ +typedef struct _GArmV7CpRegister GArmV7CpRegister; + +/* Représentation d'un registre de co-processeur ARMv7 (classe) */ +typedef struct _GArmV7CpRegisterClass GArmV7CpRegisterClass; + + +/* Indique le type défini pour une représentation d'un registre de co-processeur ARMv7. */ +GType g_armv7_cp_register_get_type(void); + +/* Crée une réprésentation de registre de co-processeur ARMv7. */ +GArchRegister *g_armv7_cp_register_new(uint8_t); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Vide totalement le cache des registres de co-processeur ARMv7. */ +void clean_armv7_cp_register_cache(void); + + + +#endif /* _PLUGINS_ARM_V7_REGISTERS_COPROC_H */ diff --git a/plugins/arm/v7/registers/simd.c b/plugins/arm/v7/registers/simd.c new file mode 100644 index 0000000..1a71fc7 --- /dev/null +++ b/plugins/arm/v7/registers/simd.c @@ -0,0 +1,534 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * simd.c - aides auxiliaires relatives aux registres SIMD ARMv7 + * + * Copyright (C) 2018 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "simd.h" + + +#include <assert.h> +#include <stdio.h> + + +#include "../register-int.h" + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +/* Représentation d'un registre ARMv7 (instance) */ +struct _GArmV7SIMDRegister +{ + GArmV7Register parent; /* Instance parente */ + + SIMDRegisterMapping mapping; /* Type de registre */ + +}; + +/* Représentation d'un registre ARMv7 (classe) */ +struct _GArmV7SIMDRegisterClass +{ + GArmV7RegisterClass parent; /* Classe parente */ + +}; + + +#define MAX_REGNAME_LEN 4 + + +/* Initialise la classe des registres SIMD ARMv7. */ +static void g_armv7_simd_register_class_init(GArmV7SIMDRegisterClass *); + +/* Initialise une instance de registre SIMD ARMv7. */ +static void g_armv7_simd_register_init(GArmV7SIMDRegister *); + +/* Supprime toutes les références externes. */ +static void g_armv7_simd_register_dispose(GArmV7SIMDRegister *); + +/* Procède à la libération totale de la mémoire. */ +static void g_armv7_simd_register_finalize(GArmV7SIMDRegister *); + +/* Traduit un registre en version humainement lisible. */ +static void g_armv7_simd_register_print(const GArmV7SIMDRegister *, GBufferLine *, AsmSyntax); + +/* Crée une réprésentation de registre SIMD ARMv7. */ +static GArchRegister *_g_armv7_simd_register_new(SIMDRegisterMapping, uint8_t); + + + +/* --------------------- TRANSPOSITIONS VIA CACHE DES REGISTRES --------------------- */ + + +/* Charge un registre depuis une mémoire tampon. */ +static GArchRegister *g_armv7_simd_register_unserialize(GArmV7SIMDRegister *, GAsmStorage *, packed_buffer *); + +/* Sauvegarde un registre dans une mémoire tampon. */ +static bool g_armv7_simd_register_serialize(const GArmV7SIMDRegister *, GAsmStorage *, packed_buffer *); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Conservation des registres utilisés */ +static GArchRegister **_armv7_simd_registers[SRM_COUNT] = { NULL, NULL, NULL }; +static size_t _av7_simd_reg_count[SRM_COUNT] = { 0, 0, 0 }; +G_LOCK_DEFINE_STATIC(_av7_simd_reg_mutex); + + +/* Fournit le singleton associé à un registre SIMD ARMv7. */ +static GArchRegister *get_armv7_simd_register(SIMDRegisterMapping, uint8_t); + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION UNITAIRE DES REGISTRES */ +/* ---------------------------------------------------------------------------------- */ + + +/* Indique le type défini pour une représentation d'un registre SIMD ARMv7. */ +G_DEFINE_TYPE(GArmV7SIMDRegister, g_armv7_simd_register, G_TYPE_ARMV7_REGISTER); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des registres SIMD ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_simd_register_class_init(GArmV7SIMDRegisterClass *klass) +{ + GObjectClass *object_class; /* Autre version de la classe */ + GArchRegisterClass *reg_class; /* Classe de haut niveau */ + + object_class = G_OBJECT_CLASS(klass); + + object_class->dispose = (GObjectFinalizeFunc/* ! */)g_armv7_simd_register_dispose; + object_class->finalize = (GObjectFinalizeFunc)g_armv7_simd_register_finalize; + + reg_class = G_ARCH_REGISTER_CLASS(klass); + + reg_class->print = (reg_print_fc)g_armv7_simd_register_print; + reg_class->unserialize = (reg_unserialize_fc)g_armv7_simd_register_unserialize; + reg_class->serialize = (reg_serialize_fc)g_armv7_simd_register_serialize; + + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance à initialiser. * +* * +* Description : Initialise une instance de registre SIMD ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_simd_register_init(GArmV7SIMDRegister *reg) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Supprime toutes les références externes. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_simd_register_dispose(GArmV7SIMDRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_simd_register_parent_class)->dispose(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Procède à la libération totale de la mémoire. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_simd_register_finalize(GArmV7SIMDRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_simd_register_parent_class)->finalize(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à transcrire. * +* line = ligne tampon où imprimer l'opérande donné. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un registre en version humainement lisible. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_simd_register_print(const GArmV7SIMDRegister *reg, GBufferLine *line, AsmSyntax syntax) +{ + char key[MAX_REGNAME_LEN]; /* Mot clef principal */ + size_t klen; /* Taille de ce mot clef */ + + switch (reg->mapping) + { + case SRM_SINGLE_WORD: + klen = snprintf(key, MAX_REGNAME_LEN, "s%hhu", G_ARM_REGISTER(reg)->index); + break; + + case SRM_DOUBLE_WORD: + klen = snprintf(key, MAX_REGNAME_LEN, "d%hhu", G_ARM_REGISTER(reg)->index); + break; + + case SRM_QUAD_WORD: + klen = snprintf(key, MAX_REGNAME_LEN, "q%hhu", G_ARM_REGISTER(reg)->index); + break; + + default: + assert(false); + klen = snprintf(key, MAX_REGNAME_LEN, "x??"); + break; + + } + + g_buffer_line_append_text(line, BLC_ASSEMBLY, key, klen, RTT_REGISTER, NULL); + +} + + +/****************************************************************************** +* * +* Paramètres : mapping = type de registre demandé. * +* index = indice du registre correspondant. * +* * +* Description : Crée une réprésentation de registre SIMD ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *_g_armv7_simd_register_new(SIMDRegisterMapping mapping, uint8_t index) +{ + GArmV7SIMDRegister *result; /* Structure à retourner */ + uint8_t max; /* Borne supérieure de limite */ + + switch (mapping) + { + case SRM_SINGLE_WORD: + max = 31; + break; + + case SRM_DOUBLE_WORD: + max = 31; + break; + + case SRM_QUAD_WORD: + max = 15; + break; + + default: + assert(false); + goto bad_mapping; + break; + + } + + if (index > max) + goto bad_index; + + result = g_object_new(G_TYPE_ARMV7_SIMD_REGISTER, NULL); + + G_ARM_REGISTER(result)->index = index; + + result->mapping = mapping; + + return G_ARCH_REGISTER(result); + + bad_mapping: + bad_index: + + return NULL; + +} + + +/****************************************************************************** +* * +* Paramètres : mapping = type de registre demandé. * +* index = indice du registre correspondant. * +* * +* Description : Crée une réprésentation de registre SIMD ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchRegister *g_armv7_simd_register_new(SIMDRegisterMapping mapping, uint8_t index) +{ + GArchRegister *result; /* Structure à retourner */ + + result = get_armv7_simd_register(mapping, index); + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* TRANSPOSITIONS VIA CACHE DES OPERANDES */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : reg = registre d'architecture à constituer. * +* storage = mécanisme de sauvegarde à manipuler. * +* pbuf = zone tampon à remplir. * +* * +* Description : Charge un registre depuis une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *g_armv7_simd_register_unserialize(GArmV7SIMDRegister *reg, GAsmStorage *storage, packed_buffer *pbuf) +{ + GArchRegister *result; /* Instance à retourner */ + SIMDRegisterMapping mapping; /* Type de registre */ + bool status; /* Bilan d'une extraction */ + uint8_t index; /* Indice du registre */ + GArchRegisterClass *parent; /* Classe parente à consulter */ + + status = extract_packed_buffer(pbuf, &mapping, sizeof(SIMDRegisterMapping), true); + + if (status) + status = extract_packed_buffer(pbuf, &index, sizeof(uint8_t), false); + + if (status) + { + result = get_armv7_simd_register(mapping, index); + + if (result == NULL) + g_object_unref(G_OBJECT(reg)); + + } + + else + { + g_object_unref(G_OBJECT(reg)); + result = NULL; + } + + if (result != NULL) + { + parent = G_ARCH_REGISTER_CLASS(g_armv7_simd_register_parent_class); + + result = parent->unserialize(G_ARCH_REGISTER(reg), storage, pbuf); + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre d'architecture à consulter. * +* storage = mécanisme de sauvegarde à manipuler. * +* pbuf = zone tampon à remplir. * +* * +* Description : Sauvegarde un registre dans une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static bool g_armv7_simd_register_serialize(const GArmV7SIMDRegister *reg, GAsmStorage *storage, packed_buffer *pbuf) +{ + bool result; /* Bilan à retourner */ + GArchRegisterClass *parent; /* Classe parente à consulter */ + + result = extend_packed_buffer(pbuf, ®->mapping, sizeof(SIMDRegisterMapping), true); + + if (result) + { + parent = G_ARCH_REGISTER_CLASS(g_armv7_simd_register_parent_class); + + result = parent->serialize(G_ARCH_REGISTER(reg), storage, pbuf); + + } + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION SOUS FORME DE SINGLETONS */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : mapping = type de registre demandé. * +* index = indice du registre correspondant. * +* * +* Description : Fournit le singleton associé à un registre SIMD ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *get_armv7_simd_register(SIMDRegisterMapping mapping, uint8_t index) +{ + GArchRegister *result; /* Structure à retourner */ + size_t new_count; /* Nouvelle taille à considérer*/ + size_t i; /* Boucle de parcours */ + + assert(mapping < SRM_COUNT); + + G_LOCK(_av7_simd_reg_mutex); + + if (index >= _av7_simd_reg_count[mapping]) + { + /** + * On valide déjà le fait que le registre puisse être créé + * avant de réaliser une allocation potentiellement énorme + * avec un indice démesuré. + */ + + result = _g_armv7_simd_register_new(mapping, index); + + if (result == NULL) + goto bad_index; + + new_count = index + 1; + + _armv7_simd_registers[mapping] = realloc(_armv7_simd_registers[mapping], + new_count * sizeof(GArchRegister *)); + + for (i = _av7_simd_reg_count[mapping]; i < new_count; i++) + _armv7_simd_registers[mapping][i] = NULL; + + _av7_simd_reg_count[mapping] = new_count; + + } + + else + result = NULL; + + if (_armv7_simd_registers[mapping][index] == NULL) + { + if (result != NULL) + _armv7_simd_registers[mapping][index] = result; + else + _armv7_simd_registers[mapping][index] = _g_armv7_simd_register_new(mapping, index); + } + + result = _armv7_simd_registers[mapping][index]; + + G_UNLOCK(_av7_simd_reg_mutex); + + g_object_ref(G_OBJECT(result)); + + bad_index: + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Vide totalement le cache des registres SIMD ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void clean_armv7_simd_register_cache(void) +{ + SIMDRegisterMapping i; /* Boucle de parcours #1 */ + size_t k; /* Boucle de parcours #2 */ + + G_LOCK(_av7_simd_reg_mutex); + + for (i = 0; i < SRM_COUNT; i++) + { + for (k = 0; k < _av7_simd_reg_count[i]; k++) + g_object_unref(G_OBJECT(_armv7_simd_registers[i][k])); + + if (_armv7_simd_registers[i] != NULL) + free(_armv7_simd_registers[i]); + + _armv7_simd_registers[i] = NULL; + _av7_simd_reg_count[i] = 0; + + } + + G_UNLOCK(_av7_simd_reg_mutex); + +} diff --git a/plugins/arm/v7/registers/simd.h b/plugins/arm/v7/registers/simd.h new file mode 100644 index 0000000..9d731ac --- /dev/null +++ b/plugins/arm/v7/registers/simd.h @@ -0,0 +1,82 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * simd.h - prototypes pour les aides auxiliaires relatives aux registres SIMD ARMv7 + * + * Copyright (C) 2018 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _PLUGINS_ARM_V7_REGISTERS_SIMD_H +#define _PLUGINS_ARM_V7_REGISTERS_SIMD_H + + +#include <glib-object.h> +#include <stdint.h> + + +#include <arch/register.h> + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +#define G_TYPE_ARMV7_SIMD_REGISTER g_armv7_simd_register_get_type() +#define G_ARMV7_SIMD_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_ARMV7_SIMD_REGISTER, GArmV7SIMDRegister)) +#define G_IS_ARMV7_SIMD_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_ARMV7_SIMD_REGISTER)) +#define G_ARMV7_SIMD_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_ARMV7_SIMD_REGISTER, GArmV7SIMDRegisterClass)) +#define G_IS_ARMV7_SIMD_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_ARMV7_SIMD_REGISTER)) +#define G_ARMV7_SIMD_REGISTER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_ARMV7_SIMD_REGISTER, GArmV7SIMDRegisterClass)) + + +/* Représentation d'un registre SIMD ARMv7 (instance) */ +typedef struct _GArmV7SIMDRegister GArmV7SIMDRegister; + +/* Représentation d'un registre SIMD ARMv7 (classe) */ +typedef struct _GArmV7SIMDRegisterClass GArmV7SIMDRegisterClass; + + +/* Types de registre */ +typedef enum _SIMDRegisterMapping +{ + SRM_SINGLE_WORD, /* Simple mot */ + SRM_DOUBLE_WORD, /* Double mot */ + SRM_QUAD_WORD, /* Quadruple mot */ + + SRM_COUNT + +} SIMDRegisterMapping; + + +/* Indique le type défini pour une représentation d'un registre SIMD ARMv7. */ +GType g_armv7_simd_register_get_type(void); + +/* Crée une réprésentation de registre SIMD ARMv7. */ +GArchRegister *g_armv7_simd_register_new(SIMDRegisterMapping, uint8_t); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Vide totalement le cache des registres SIMD ARMv7. */ +void clean_armv7_simd_register_cache(void); + + + +#endif /* _PLUGINS_ARM_V7_REGISTERS_SIMD_H */ diff --git a/plugins/arm/v7/registers/special.c b/plugins/arm/v7/registers/special.c new file mode 100644 index 0000000..ce3d859 --- /dev/null +++ b/plugins/arm/v7/registers/special.c @@ -0,0 +1,485 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * special.c - aides auxiliaires relatives aux registres spéciaux ARMv7 + * + * Copyright (C) 2018 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "special.h" + + +#include <stdio.h> + + +#include "../register-int.h" + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +/* Représentation d'un registre spécial ARMv7 (instance) */ +struct _GArmV7SpecialRegister +{ + GArmV7Register parent; /* Instance parente */ + +}; + +/* Représentation d'un registre spécial ARMv7 (classe) */ +struct _GArmV7SpecialRegisterClass +{ + GArmV7RegisterClass parent; /* Classe parente - */ + +}; + + +#define MAX_REGNAME_LEN 12 + + +/* Initialise la classe des registres spéciaux ARMv7. */ +static void g_armv7_special_register_class_init(GArmV7SpecialRegisterClass *); + +/* Initialise une instance de registre spécial ARMv7. */ +static void g_armv7_special_register_init(GArmV7SpecialRegister *); + +/* Supprime toutes les références externes. */ +static void g_armv7_special_register_dispose(GArmV7SpecialRegister *); + +/* Procède à la libération totale de la mémoire. */ +static void g_armv7_special_register_finalize(GArmV7SpecialRegister *); + +/* Traduit un registre en version humainement lisible. */ +static void g_armv7_special_register_print(const GArmV7SpecialRegister *, GBufferLine *, AsmSyntax); + +/* Crée une réprésentation de registre spécial ARMv7. */ +static GArchRegister *_g_armv7_special_register_new(SpecRegTarget); + + + +/* --------------------- TRANSPOSITIONS VIA CACHE DES REGISTRES --------------------- */ + + +/* Charge un registre depuis une mémoire tampon. */ +static GArchRegister *g_armv7_special_register_unserialize(GArmV7SpecialRegister *, GAsmStorage *, packed_buffer *); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Conservation des registres utilisés */ +static GArchRegister **_armv7_special_registers = NULL; +static size_t _av7_special_reg_count = 0; +G_LOCK_DEFINE_STATIC(_av7_special_reg_mutex); + + +/* Fournit le singleton associé à un registre spécial ARMv7. */ +static GArchRegister *get_armv7_special_register(SpecRegTarget); + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION UNITAIRE DES REGISTRES */ +/* ---------------------------------------------------------------------------------- */ + + +/* Indique le type défini pour une représentation d'un registre spécial ARMv7. */ +G_DEFINE_TYPE(GArmV7SpecialRegister, g_armv7_special_register, G_TYPE_ARMV7_REGISTER); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des registres spéciaux ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_special_register_class_init(GArmV7SpecialRegisterClass *klass) +{ + GObjectClass *object_class; /* Autre version de la classe */ + GArchRegisterClass *reg_class; /* Classe de haut niveau */ + + object_class = G_OBJECT_CLASS(klass); + reg_class = G_ARCH_REGISTER_CLASS(klass); + + object_class->dispose = (GObjectFinalizeFunc/* ! */)g_armv7_special_register_dispose; + object_class->finalize = (GObjectFinalizeFunc)g_armv7_special_register_finalize; + + reg_class->print = (reg_print_fc)g_armv7_special_register_print; + reg_class->unserialize = (reg_unserialize_fc)g_armv7_special_register_unserialize; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance à initialiser. * +* * +* Description : Initialise une instance de registre spécial ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_special_register_init(GArmV7SpecialRegister *reg) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Supprime toutes les références externes. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_special_register_dispose(GArmV7SpecialRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_special_register_parent_class)->dispose(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance d'objet GLib à traiter. * +* * +* Description : Procède à la libération totale de la mémoire. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_special_register_finalize(GArmV7SpecialRegister *reg) +{ + G_OBJECT_CLASS(g_armv7_special_register_parent_class)->finalize(G_OBJECT(reg)); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à transcrire. * +* line = ligne tampon où imprimer l'opérande donné. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un registre en version humainement lisible. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_special_register_print(const GArmV7SpecialRegister *reg, GBufferLine *line, AsmSyntax syntax) +{ + SpecRegTarget target; /* Registre ciblé */ + char key[MAX_REGNAME_LEN]; /* Mot clef principal */ + size_t klen; /* Taille de ce mot clef */ + + target = G_ARM_REGISTER(reg)->index; + + switch (target) + { + case SRT_APSR: + klen = snprintf(key, MAX_REGNAME_LEN, "APSR"); + break; + + case SRT_CPSR: + klen = snprintf(key, MAX_REGNAME_LEN, "CPSR"); + break; + + case SRT_SPSR: + klen = snprintf(key, MAX_REGNAME_LEN, "SPSR"); + break; + + case SRT_APSR_NZCVQ: + klen = snprintf(key, MAX_REGNAME_LEN, "APSR_nzcvq"); + break; + + case SRT_APSR_G: + klen = snprintf(key, MAX_REGNAME_LEN, "APSR_g"); + break; + + case SRT_APSR_NZCVQG: + klen = snprintf(key, MAX_REGNAME_LEN, "APSR_nzcvqg"); + break; + + case SRT_FPSID: + klen = snprintf(key, MAX_REGNAME_LEN, "FPSID"); + break; + + case SRT_FPSCR: + klen = snprintf(key, MAX_REGNAME_LEN, "FPSCR"); + break; + + case SRT_MVFR1: + klen = snprintf(key, MAX_REGNAME_LEN, "MVFR1"); + break; + + case SRT_MVFR0: + klen = snprintf(key, MAX_REGNAME_LEN, "MVFR0"); + break; + + case SRT_FPEXC: + klen = snprintf(key, MAX_REGNAME_LEN, "FPEXC"); + break; + + default: + klen = snprintf(key, MAX_REGNAME_LEN, "???"); + break; + + } + + g_buffer_line_append_text(line, BLC_ASSEMBLY, key, klen, RTT_REGISTER, NULL); + +} + + +/****************************************************************************** +* * +* Paramètres : target = registre effectivement ciblé. * +* * +* Description : Crée une réprésentation de registre spécial ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *_g_armv7_special_register_new(SpecRegTarget target) +{ + GArmV7SpecialRegister *result; /* Structure à retourner */ + + if (target >= SRT_CPSR) + goto bad_index; + + result = g_object_new(G_TYPE_ARMV7_SPECIAL_REGISTER, NULL); + + G_ARM_REGISTER(result)->index = target; + + return G_ARCH_REGISTER(result); + + bad_index: + + return NULL; + +} + + +/****************************************************************************** +* * +* Paramètres : target = registre effectivement ciblé. * +* * +* Description : Crée une réprésentation de registre spécial ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchRegister *g_armv7_special_register_new(SpecRegTarget target) +{ + GArchRegister *result; /* Structure à retourner */ + + result = get_armv7_special_register(target); + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* TRANSPOSITIONS VIA CACHE DES OPERANDES */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : reg = registre d'architecture à constituer. * +* storage = mécanisme de sauvegarde à manipuler. * +* pbuf = zone tampon à remplir. * +* * +* Description : Charge un registre depuis une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *g_armv7_special_register_unserialize(GArmV7SpecialRegister *reg, GAsmStorage *storage, packed_buffer *pbuf) +{ + GArchRegister *result; /* Instance à retourner */ + uint8_t index; /* Indice du registre */ + bool status; /* Bilan d'une extraction */ + GArchRegisterClass *parent; /* Classe parente à consulter */ + + status = extract_packed_buffer(pbuf, &index, sizeof(uint8_t), false); + + if (status) + { + result = get_armv7_special_register(index); + + if (result == NULL) + g_object_unref(G_OBJECT(reg)); + + } + + else + { + g_object_unref(G_OBJECT(reg)); + result = NULL; + } + + if (result != NULL) + { + parent = G_ARCH_REGISTER_CLASS(g_armv7_special_register_parent_class); + + result = parent->unserialize(result, storage, pbuf); + + } + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* GESTION SOUS FORME DE SINGLETONS */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : target = registre effectivement ciblé. * +* * +* Description : Fournit le singleton associé à un registre spécial ARMv7. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchRegister *get_armv7_special_register(SpecRegTarget target) +{ + GArchRegister *result; /* Structure à retourner */ + size_t new_count; /* Nouvelle taille à considérer*/ + size_t i; /* Boucle de parcours */ + + G_LOCK(_av7_special_reg_mutex); + + if (target >= _av7_special_reg_count) + { + /** + * On valide déjà le fait que le registre puisse être créé + * avant de réaliser une allocation potentiellement énorme + * avec un indice démesuré. + */ + + result = _g_armv7_special_register_new(target); + + if (result == NULL) + goto bad_index; + + new_count = target + 1; + + _armv7_special_registers = realloc(_armv7_special_registers, new_count * sizeof(GArchRegister *)); + + for (i = _av7_special_reg_count; i < new_count; i++) + _armv7_special_registers[i] = NULL; + + _av7_special_reg_count = new_count; + + } + + else + result = NULL; + + if (_armv7_special_registers[target] == NULL) + { + if (result != NULL) + _armv7_special_registers[target] = result; + else + _armv7_special_registers[target] = _g_armv7_special_register_new(target); + } + + result = _armv7_special_registers[target]; + + G_UNLOCK(_av7_special_reg_mutex); + + g_object_ref(G_OBJECT(result)); + + bad_index: + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Vide totalement le cache des registres spéciaux ARMv7. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void clean_armv7_special_register_cache(void) +{ + size_t i; /* Boucle de parcours */ + + G_LOCK(_av7_special_reg_mutex); + + for (i = 0; i < _av7_special_reg_count; i++) + g_object_unref(G_OBJECT(_armv7_special_registers[i])); + + if (_armv7_special_registers != NULL) + free(_armv7_special_registers); + + _armv7_special_registers = NULL; + _av7_special_reg_count = 0; + + G_UNLOCK(_av7_special_reg_mutex); + +} diff --git a/plugins/arm/v7/registers/special.h b/plugins/arm/v7/registers/special.h new file mode 100644 index 0000000..ef23a9a --- /dev/null +++ b/plugins/arm/v7/registers/special.h @@ -0,0 +1,90 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * special.h - prototypes pour les aides auxiliaires relatives aux registres spéciaux ARMv7 + * + * Copyright (C) 2018 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _PLUGINS_ARM_V7_REGISTERS_SPECIAL_H +#define _PLUGINS_ARM_V7_REGISTERS_SPECIAL_H + + +#include <glib-object.h> +#include <stdint.h> + + +#include <arch/register.h> + + + +/* ------------------------- GESTION UNITAIRE DES REGISTRES ------------------------- */ + + +#define G_TYPE_ARMV7_SPECIAL_REGISTER g_armv7_special_register_get_type() +#define G_ARMV7_SPECIAL_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_ARMV7_SPECIAL_REGISTER, GArmV7SpecialRegister)) +#define G_IS_ARMV7_SPECIAL_REGISTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_ARMV7_SPECIAL_REGISTER)) +#define G_ARMV7_SPECIAL_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_ARMV7_SPECIAL_REGISTER, GArmV7SpecialRegisterClass)) +#define G_IS_ARMV7_SPECIAL_REGISTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_ARMV7_SPECIAL_REGISTER)) +#define G_ARMV7_SPECIAL_REGISTER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_ARMV7_SPECIAL_REGISTER, GArmV7SpecialRegisterClass)) + + +/* Représentation d'un registre spécial ARMv7 (instance) */ +typedef struct _GArmV7SpecialRegister GArmV7SpecialRegister; + +/* Représentation d'un registre spécial ARMv7 (classe) */ +typedef struct _GArmV7SpecialRegisterClass GArmV7SpecialRegisterClass; + + +/* Désignation des registres spéciaux */ +typedef enum _SpecRegTarget +{ + SRT_APSR, + SRT_CPSR, + SRT_SPSR, + SRT_APSR_NZCVQ, + SRT_APSR_G, + SRT_APSR_NZCVQG, + SRT_FPSID, + SRT_FPSCR, + SRT_MVFR1, + SRT_MVFR0, + SRT_FPEXC, + + SRT_COUNT + +} SpecRegTarget; + + +/* Indique le type défini pour une représentation d'un registre spécial ARMv7. */ +GType g_armv7_special_register_get_type(void); + +/* Crée une réprésentation de registre spécial ARMv7. */ +GArchRegister *g_armv7_special_register_new(SpecRegTarget); + + + +/* ------------------------ GESTION SOUS FORME DE SINGLETONS ------------------------ */ + + +/* Vide totalement le cache des registres spéciaux ARMv7. */ +void clean_armv7_special_register_cache(void); + + + +#endif /* _PLUGINS_ARM_V7_REGISTERS_SPECIAL_H */ |