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/* Chrysalide - Outil d'analyse de fichiers binaires
* output.h - prototypes pour l'impression des instructions désassemblées
*
* Copyright (C) 2010-2013 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
#include "output.h"
#include <i18n.h>
#include "../../arch/processor.h"
#include "../../common/extstr.h"
#include "../../decomp/lang/asm.h"
#include "../../format/format.h"
#include "../../gui/panels/log.h"
#define ROUTINE_INTRO_MSG "; --------------- BEGIN OF PROCEDURE ---------------"
#define ROUTINE_OUTRO_MSG "; ---------------- END OF PROCEDURE ----------------"
/******************************************************************************
* *
* Paramètres : buffer = tampon de récueil des résultats d'impression. *
* format = format du binaire traité. *
* instrs = ensemble d'instructions à traiter. *
* routines = liste de routines intervenant dans le flot. *
* count = quantité de ces routines. *
* status = barre de statut avec progression à mettre à jour. *
* *
* Description : Transcrit du code désassemblé en texte humainement lisible. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
void print_disassembled_instructions(GCodeBuffer *buffer, GExeFormat *format, GArchProcessor *proc, GtkStatusStack *status)
{
GLangOutput *output; /* Modèle de sortie adéquat */
GPortionLayer *layer; /* Couche première de portions */
GBinPortion **portions; /* Morceaux d'encadrement */
size_t portions_count; /* Taille de cette liste */
size_t portion_index; /* Prochaine portion à traiter */
GBinSymbol **symbols; /* Symboles à représenter */
size_t sym_count; /* Qté de symboles présents */
size_t sym_index; /* Prochain symbole non traité */
MemoryDataSize msize; /* Taille du bus d'adresses */
const GBinContent *content; /* Contenu binaire global */
size_t count; /* Nombre total d'instructions */
activity_id_t id; /* Identifiant de progression */
bool expect_outro; /* Fin de zone de code définie */
size_t i; /* Boucle de parcours */
GArchInstruction *instr; /* Instruction à traiter */
const vmpa2t *iaddr; /* Adresse d'instruction */
vmpa2t outro_addr; /* Adresse de fin de code */
GBufferLine *line;
const vmpa2t *paddr; /* Adresse de portion */
const vmpa2t *saddr; /* Adresse de symbole */
int compared; /* Bilan d'une comparaison */
SymbolType stype; /* Type de symbole trouvé */
const char *label; /* Etiquette ciblant un symbole*/
mrange_t range; /* Couverture sans surface */
GDbComment *comment; /* Commentaire à ajouter */
const char *text;
char *prefixed;
unsigned int _missing = 0;
output = g_asm_output_new();
layer = g_exe_format_get_main_layer(format);
portions = g_portion_layer_collect_all_portions(layer, &portions_count);
portion_index = 0;
symbols = g_binary_format_get_symbols(G_BIN_FORMAT(format), &sym_count);
sym_index = 0;
msize = g_arch_processor_get_memory_size(proc);
content = g_binary_format_get_content(G_BIN_FORMAT(format));
count = g_arch_processor_count_disassembled_instructions(proc);
id = gtk_status_stack_add_activity(status, _("Printing all disassebled parts..."), count);
expect_outro = false;
for (i = 0; i < count; i++)
{
instr = g_arch_processor_get_disassembled_instruction(proc, i);
iaddr = get_mrange_addr(g_arch_instruction_get_range(instr));
/* Fin d'une portion de code précédente ? */
if (expect_outro && cmp_vmpa(iaddr, &outro_addr) >= 0)
{
expect_outro = false;
init_mrange(&range, &outro_addr, 0);
line = g_code_buffer_prepare_new_line(buffer, &range);
g_buffer_line_add_flag(line, BLF_IS_LABEL);
g_buffer_line_fill_mrange(line, msize, msize);
g_code_buffer_append_new_line(buffer, line);
line = g_code_buffer_prepare_new_line(buffer, &range);
g_buffer_line_add_flag(line, BLF_IS_LABEL);
g_buffer_line_fill_mrange(line, msize, msize);
g_buffer_line_start_merge_at(line, BLC_ASSEMBLY_HEAD);
g_buffer_line_append_text(line, BLC_ASSEMBLY_HEAD,
ROUTINE_OUTRO_MSG, strlen(ROUTINE_OUTRO_MSG), RTT_COMMENT, NULL);
g_code_buffer_append_new_line(buffer, line);
line = g_code_buffer_prepare_new_line(buffer, &range);
g_buffer_line_add_flag(line, BLF_IS_LABEL);
g_buffer_line_fill_mrange(line, msize, msize);
g_code_buffer_append_new_line(buffer, line);
}
/* Début d'une nouvelle portion ? */
while (portion_index < portions_count)
{
paddr = get_mrange_addr(g_binary_portion_get_range(portions[portion_index]));
if (cmp_vmpa_by_phy(iaddr, paddr) != 0)
break;
g_binary_portion_print(portions[portion_index], buffer, msize);
portion_index++;
}
/* Début d'un nouveau symbole ? */
if (sym_index < sym_count)
{
iaddr = get_mrange_addr(g_arch_instruction_get_range(instr));
saddr = get_mrange_addr(g_binary_symbol_get_range(symbols[sym_index]));
/* On écarte les symboles qu'on ne sait pas réintroduire */
for (compared = cmp_vmpa(iaddr, saddr);
compared > 0;
compared = cmp_vmpa(iaddr, saddr))
{
log_variadic_message(LMT_BAD_BINARY,
_("Unable to find a proper location for symbol '%s' @ 0x%08x"),
g_binary_symbol_get_label(symbols[sym_index]), get_virt_addr(saddr));
_missing++;
if (++sym_index == sym_count)
goto no_more_symbol_finally;
saddr = get_mrange_addr(g_binary_symbol_get_range(symbols[sym_index]));
}
if (compared == 0)
{
/* Coupure pour une nouvelle routine */
stype = g_binary_symbol_get_target_type(symbols[sym_index]);
if (stype == STP_ROUTINE || stype == STP_FUNCTION || stype == STP_ENTRY_POINT)
{
/* Impression de la marque de début */
init_mrange(&range, get_mrange_addr(g_binary_symbol_get_range(symbols[sym_index])), 0);
line = g_code_buffer_prepare_new_line(buffer, &range);
g_buffer_line_add_flag(line, BLF_IS_LABEL);
g_buffer_line_fill_mrange(line, msize, msize);
g_code_buffer_append_new_line(buffer, line);
line = g_code_buffer_prepare_new_line(buffer, &range);
g_buffer_line_add_flag(line, BLF_IS_LABEL);
g_buffer_line_fill_mrange(line, msize, msize);
g_buffer_line_start_merge_at(line, BLC_ASSEMBLY_HEAD);
g_buffer_line_append_text(line, BLC_ASSEMBLY_HEAD,
ROUTINE_INTRO_MSG, strlen(ROUTINE_INTRO_MSG), RTT_COMMENT, NULL);
g_code_buffer_append_new_line(buffer, line);
line = g_code_buffer_prepare_new_line(buffer, &range);
g_buffer_line_add_flag(line, BLF_IS_LABEL);
g_buffer_line_fill_mrange(line, msize, msize);
g_code_buffer_append_new_line(buffer, line);
/* Mémorisation de la fin */
compute_mrange_end_addr(g_binary_symbol_get_range(symbols[sym_index]), &outro_addr);
expect_outro = true;
}
/* Etiquette ? */
label = g_binary_symbol_get_label(symbols[sym_index]);
if (label != NULL)
{
init_mrange(&range, get_mrange_addr(g_binary_symbol_get_range(symbols[sym_index])), 0);
line = g_code_buffer_prepare_new_line(buffer, &range);
g_buffer_line_add_flag(line, BLF_IS_LABEL);
g_buffer_line_fill_mrange(line, msize, msize);
g_buffer_line_start_merge_at(line, BLC_ASSEMBLY_HEAD);
g_buffer_line_append_text(line, BLC_ASSEMBLY_HEAD, label, strlen(label), RTT_LABEL, NULL);
g_buffer_line_append_text(line, BLC_ASSEMBLY_HEAD, ":", 1, RTT_PUNCT, NULL);
g_code_buffer_append_new_line(buffer, line);
}
}
}
no_more_symbol_finally:
line = g_arch_instruction_print(instr, buffer, msize, content, ASX_INTEL);
if (g_arch_instruction_get_flags(instr) & AIF_RETURN_POINT)
g_buffer_line_add_flag(line, BLF_BOOKMARK);
if (sym_index < sym_count)
{
iaddr = get_mrange_addr(g_arch_instruction_get_range(instr));
saddr = get_mrange_addr(g_binary_symbol_get_range(symbols[sym_index]));
if (cmp_vmpa(iaddr, saddr) == 0)
{
/* Point d'entrée ? */
if (g_binary_symbol_get_target_type(symbols[sym_index]) == STP_ENTRY_POINT)
g_buffer_line_add_flag(line, BLF_ENTRYPOINT);
/* Début d'un groupe bien cohérent avec les alignements ? */
if (g_binary_symbol_is_block_start(symbols[sym_index]))
g_buffer_line_add_flag(line, BLF_WIDTH_MANAGER);
/* Commentaire ? */
comment = g_binary_symbol_get_comment(symbols[sym_index]);
if (comment != NULL)
{
/* FIXME : appliquer ! */
text = g_db_comment_get_text(comment);
prefixed = strdup("; ");
prefixed = stradd(prefixed, text);
g_buffer_line_append_text(line, BLC_COMMENTS, prefixed, strlen(prefixed), RTT_COMMENT, NULL);
free(prefixed);
}
sym_index++;
}
}
g_code_buffer_append_new_line(buffer, line);
gtk_status_stack_update_activity_value(status, id, 1);
}
gtk_status_stack_remove_activity(status, id);
g_object_unref(G_OBJECT(content));
if (portions != NULL)
free(portions);
g_object_unref(G_OBJECT(layer));
g_object_unref(G_OBJECT(output));
fprintf(stderr, "MISSING :: %u symbols\n", _missing);
}
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