radare2/libr/core/disasm.c
2017-07-04 18:56:14 +02:00

4853 lines
132 KiB
C

/* radare - LGPL - Copyright 2009-2017 - nibble, pancake, dso */
#include "r_core.h"
#include "r_cons.h"
#define HASRETRY 1
#define HAVE_LOCALS 1
#define DEFAULT_NARGS 4
#define R_MIDFLAGS_SHOW 1
#define R_MIDFLAGS_REALIGN 2
#define R_MIDFLAGS_SYMALIGN 3
#define COLOR(ds, field) (ds->show_color ? ds->field : "")
#define COLOR_CONST(ds, color) (ds->show_color ? Color_ ## color : "")
#define COLOR_RESET(ds) COLOR_CONST(ds, RESET)
static const char* r_vline_a[] = {
"|", // LINE_VERT
"|-", // LINE_CROSS
"-", // LINE_HORIZ
"!", // LINE_UP
",", // LUP_CORNER
"\\", // RDWN_CORNER
"/", // RUP_CORNER
"`", // LDWN_CORNER
"->", // ARROW_RIGHT
"=<", // ARROW_LEFT
};
static const char* r_vline_u[] = {
"", // LINE_VERT
"", // LINE_CROSS
"", // LINE_HORIZ
"", // LINE_UP
//"┌", // LUP_CORNER
"", // LUP_CORNER
"", // RDWN_CORNER
"", // RUP_CORNER
"", // LDWN_CORNER
">", // ARROW_RIGHT
"<", // ARROW_LEFT
};
// TODO: what about using bit shifting and enum for keys? see libr/util/bitmap.c
// the problem of this is that the fields will be more opaque to bindings, but we will earn some bits
typedef struct r_disam_options_t {
RCore *core;
char str[1024], strsub[1024];
bool use_esil;
bool show_color;
bool show_color_bytes;
int colorop;
int acase;
bool capitalize;
bool show_flgoff;
bool hasMidflag;
int atabs;
int atabsonce;
int atabsoff;
int decode;
bool pseudo;
int filter;
int interactive;
int varsub;
bool show_lines;
bool show_lines_ret;
bool show_lines_call;
int linesright;
int tracespace;
int cyclespace;
int cmtfold;
int show_indent;
bool show_dwarf;
bool show_size;
bool show_trace;
bool show_family;
bool asm_describe;
int linesout;
int adistrick;
int asm_demangle;
bool show_offset;
bool show_offdec; // dupe for r_print->flags
bool show_bbline;
bool show_emu;
bool show_emu_str;
bool show_emu_write;
bool show_section;
int show_section_col;
bool show_symbols;
int show_symbols_col;
bool show_offseg;
bool show_flags;
bool bblined;
bool show_bytes;
bool show_reloff;
bool show_reloff_flags;
bool show_comments;
bool show_jmphints;
bool show_leahints;
bool show_slow;
int cmtcol;
bool show_fcnlines;
bool show_calls;
bool show_cmtflgrefs;
bool show_cycles;
bool show_stackptr;
bool show_xrefs;
bool show_cmtrefs;
const char *show_cmtoff;
bool show_functions;
bool show_fcncalls;
bool show_hints;
bool show_marks;
const char *strenc;
int cursor;
int show_comment_right_default;
int flagspace_ports;
int show_flag_in_bytes;
int lbytes;
int show_comment_right;
char *pre;
char *ocomment;
int linesopts;
int lastfail;
int ocols;
int lcols;
int nb, nbytes;
int show_utf8;
int lines;
int oplen;
bool show_varxs;
bool show_vars;
bool show_varsum;
int midflags;
bool midcursor;
bool show_noisy_comments;
const char *pal_comment;
const char *color_comment;
const char *color_fname;
const char *color_floc;
const char *color_fline;
const char *color_flow;
const char *color_flow2;
const char *color_flag;
const char *color_label;
const char *color_other;
const char *color_nop;
const char *color_bin;
const char *color_math;
const char *color_jmp;
const char *color_cjmp;
const char *color_call;
const char *color_cmp;
const char *color_swi;
const char *color_trap;
const char *color_ret;
const char *color_push;
const char *color_pop;
const char *color_reg;
const char *color_num;
const char *color_mov;
const char *color_invalid;
const char *color_gui_cflow;
const char *color_gui_dataoffset;
const char *color_gui_background;
const char *color_gui_alt_background;
const char *color_gui_border;
RFlagItem *lastflag;
RAnalHint *hint;
RPrint *print;
ut64 esil_old_pc;
ut8* esil_regstate;
bool esil_likely;
int l;
int middle;
int indent_level;
int indent_space;
char *line;
char *refline, *refline2;
char *comment;
char *opstr;
char *osl, *sl;
int stackptr, ostackptr;
int index;
ut64 at, vat, addr, dest;
int tries, cbytes, idx;
bool retry;
bool mi_found;
RAsmOp asmop;
RAnalOp analop;
RAnalFunction *fcn;
const ut8 *buf;
int len;
int maxrefs;
char *prev_ins;
bool prev_ins_eq;
int prev_ins_count;
bool show_nodup;
bool has_description;
// caches
char *_tabsbuf;
int _tabsoff;
bool dwarfFile;
bool dwarfAbspath;
bool showpayloads;
bool showrelocs;
} RDisasmState;
static void ds_setup_print_pre(RDisasmState *ds, bool tail, bool middle);
static void ds_setup_pre(RDisasmState *ds, bool tail, bool middle);
static void ds_print_pre(RDisasmState *ds);
static void ds_beginline(RDisasmState *ds, RAnalFunction *f, bool nopre);
static void ds_print_esil_anal(RDisasmState *ds);
static void ds_reflines_init(RDisasmState *ds);
static void ds_align_comment(RDisasmState *ds);
static RDisasmState * ds_init(RCore * core);
static void ds_set_pre(RDisasmState *ds, const char * str);
static void ds_build_op_str(RDisasmState *ds);
static void ds_pre_xrefs(RDisasmState *ds);
static void ds_show_xrefs(RDisasmState *ds);
static void ds_atabs_option(RDisasmState *ds);
static void ds_show_functions(RDisasmState *ds);
static void ds_show_comments_right(RDisasmState *ds);
static void ds_show_flags(RDisasmState *ds);
static void ds_update_ref_lines(RDisasmState *ds);
static int ds_disassemble(RDisasmState *ds, ut8 *buf, int len);
static void ds_control_flow_comments(RDisasmState *ds);
static void ds_print_lines_right(RDisasmState *ds);
static void ds_print_lines_left(RDisasmState *ds);
static void ds_print_cycles(RDisasmState *ds);
static void ds_print_family(RDisasmState *ds);
static void ds_print_stackptr(RDisasmState *ds);
static void ds_print_offset(RDisasmState *ds);
static void ds_print_op_size(RDisasmState *ds);
static void ds_print_trace(RDisasmState *ds);
static void ds_adistrick_comments(RDisasmState *ds);
static int ds_print_meta_infos(RDisasmState *ds, ut8* buf, int len, int idx );
static void ds_print_opstr(RDisasmState *ds);
static void ds_print_color_reset(RDisasmState *ds);
static int ds_print_middle(RDisasmState *ds, int ret);
static bool ds_print_labels(RDisasmState *ds, RAnalFunction *f);
static void ds_print_import_name(RDisasmState *ds);
static void ds_print_fcn_name(RDisasmState *ds);
static void ds_print_as_string(RDisasmState *ds);
static void ds_print_core_vmode(RDisasmState *ds);
static void ds_print_dwarf(RDisasmState *ds);
static void ds_print_asmop_payload(RDisasmState *ds, const ut8 *buf);
static void ds_print_comments_right(RDisasmState *ds);
static void ds_print_ptr(RDisasmState *ds, int len, int idx);
static void ds_print_str(RDisasmState *ds, const char *str, int len);
static ut64 p2v(RDisasmState *ds, ut64 addr) {
if (ds->core->io->pava) {
ut64 at = r_io_section_get_vaddr (ds->core->io, addr);
if (at == UT64_MAX || (!at && ds->at)) {
addr = ds->at;
} else {
addr = at + addr;
}
}
return addr;
}
static int cmpaddr(const void *_a, const void *_b) {
const RAnalBlock *a = _a, *b = _b;
return (a->addr > b->addr);
}
static void get_bits_comment(RCore *core, RAnalFunction *f, char *cmt, int cmt_size) {
if (core && f && cmt && cmt_size > 0 && f->bits && f->bits != core->assembler->bits) {
const char *asm_arch = r_config_get (core->config, "asm.arch");
if (asm_arch && *asm_arch && strstr (asm_arch, "arm")) {
switch (f->bits) {
case 16: strcpy (cmt, " (thumb)"); break;
case 32: strcpy (cmt, " (arm)"); break;
case 64: strcpy (cmt, " (aarch64)"); break;
}
} else {
snprintf (cmt, cmt_size, " (%d bits)", f->bits);
}
} else {
if (cmt) {
cmt[0] = 0;
}
}
}
static const char * get_section_name(RCore *core, ut64 addr) {
static char section[128] = "";
static ut64 oaddr = UT64_MAX;
RIOSection *s;
if (oaddr == addr) {
return section;
}
s = r_io_section_vget (core->io, addr);
if (s) {
snprintf (section, sizeof (section)-1, "%10s ", s->name);
} else {
RListIter *iter;
RDebugMap *map;
*section = 0;
r_list_foreach (core->dbg->maps, iter, map) {
if (addr >= map->addr && addr < map->addr_end) {
const char *mn = r_str_lchr (map->name, '/');
if (mn) {
strncpy (section, mn + 1, sizeof (section) - 1);
} else {
strncpy (section, map->name, sizeof (section) - 1);
}
break;
}
}
}
oaddr = addr;
return section;
}
// up means if this lines go up, it controls whether to insert `_
// nl if we have to insert new line, it controls whether to insert \n
static void _ds_comment_align_(RDisasmState *ds, bool up, bool nl) {
const char *sn;
if (ds->show_comment_right) {
if (ds->show_color) {
r_cons_printf (ds->pal_comment);
}
return;
}
//XXX fix this generate many dupes with section name
sn = ds->show_section ? get_section_name (ds->core, ds->at) : "";
ds_align_comment (ds);
r_cons_printf ("%s%s%s%s%s%s %s %s", nl? "\n": "", COLOR (ds, color_fline),
ds->pre, sn, ds->refline, COLOR_RESET (ds),
up? "": "`-", COLOR (ds, pal_comment));
}
#define ALIGN _ds_comment_align_ (ds, true, false)
static void ds_comment_lineup(RDisasmState *ds) {
_ds_comment_align_ (ds, true, false);
}
static void ds_comment(RDisasmState *ds, bool align, const char *format, ...) {
va_list ap;
va_start (ap, format);
if (ds->show_comments && ds->show_comment_right && align) {
ds_align_comment (ds);
}
r_cons_printf_list (format, ap);
va_end (ap);
}
static void ds_comment_esil(RDisasmState *ds, bool up, bool end, const char *format, ...) {
va_list ap;
va_start (ap, format);
if (ds->show_comments && !ds->show_comment_right) {
if (up) {
ds_comment_lineup (ds);
}
}
r_cons_printf_list (format, ap);
va_end (ap);
if (ds->show_comments && !ds->show_comment_right) {
if (end) {
r_cons_newline ();
}
}
}
static RDisasmState * ds_init(RCore *core) {
RDisasmState *ds = R_NEW0 (RDisasmState);
if (!ds) {
return NULL;
}
ds->core = core;
ds->pal_comment = core->cons->pal.comment;
#define P(x) (core->cons && core->cons->pal.x)? core->cons->pal.x
ds->color_comment = P(comment): Color_CYAN;
ds->color_fname = P(fname): Color_RED;
ds->color_floc = P(floc): Color_MAGENTA;
ds->color_fline = P(fline): Color_CYAN;
ds->color_flow = P(flow): Color_CYAN;
ds->color_flow2 = P(flow2): Color_CYAN;
ds->color_flag = P(flag): Color_CYAN;
ds->color_label = P(label): Color_CYAN;
ds->color_other = P(other): Color_WHITE;
ds->color_nop = P(nop): Color_BLUE;
ds->color_bin = P(bin): Color_YELLOW;
ds->color_math = P(math): Color_YELLOW;
ds->color_jmp = P(jmp): Color_GREEN;
ds->color_cjmp = P(cjmp): Color_GREEN;
ds->color_call = P(call): Color_BGREEN;
ds->color_cmp = P(cmp): Color_MAGENTA;
ds->color_swi = P(swi): Color_MAGENTA;
ds->color_trap = P(trap): Color_BRED;
ds->color_ret = P(ret): Color_RED;
ds->color_push = P(push): Color_YELLOW;
ds->color_pop = P(pop): Color_BYELLOW;
ds->color_reg = P(reg): Color_YELLOW;
ds->color_num = P(num): Color_CYAN;
ds->color_mov = P(mov): Color_WHITE;
ds->color_invalid = P(invalid): Color_BRED;
ds->color_gui_cflow = P(gui_cflow): Color_YELLOW;
ds->color_gui_dataoffset = P(gui_dataoffset): Color_YELLOW;
ds->color_gui_background = P(gui_background): Color_BLACK;
ds->color_gui_alt_background = P(gui_alt_background): Color_GRAY;
ds->color_gui_border = P(gui_border): Color_BGGRAY;
ds->use_esil = r_config_get_i (core->config, "asm.esil");
ds->show_flgoff = r_config_get_i (core->config, "asm.flgoff");
ds->show_nodup = r_config_get_i (core->config, "asm.nodup");
ds->show_color = r_config_get_i (core->config, "scr.color");
ds->show_color_bytes = r_config_get_i (core->config, "scr.color.bytes"); // maybe rename to asm.color.bytes
ds->colorop = r_config_get_i (core->config, "scr.color.ops"); // XXX confusing name // asm.color.inst (mnemonic + operands) ?
ds->show_utf8 = r_config_get_i (core->config, "scr.utf8");
ds->acase = r_config_get_i (core->config, "asm.ucase");
ds->capitalize = r_config_get_i (core->config, "asm.capitalize");
ds->atabs = r_config_get_i (core->config, "asm.tabs");
ds->atabsonce = r_config_get_i (core->config, "asm.tabsonce");
ds->atabsoff = r_config_get_i (core->config, "asm.tabsoff");
ds->midflags = r_config_get_i (core->config, "asm.midflags");
ds->midcursor = r_config_get_i (core->config, "asm.midcursor");
ds->decode = r_config_get_i (core->config, "asm.decode");
ds->pseudo = r_config_get_i (core->config, "asm.pseudo");
if (ds->pseudo) {
ds->atabs = 0;
}
ds->filter = r_config_get_i (core->config, "asm.filter");
ds->interactive = r_config_get_i (core->config, "scr.interactive");
ds->varsub = r_config_get_i (core->config, "asm.varsub");
core->parser->relsub = r_config_get_i (core->config, "asm.relsub");
core->parser->localvar_only = r_config_get_i (core->config, "asm.varsub_only");
ds->show_vars = r_config_get_i (core->config, "asm.vars");
ds->show_varsum = r_config_get_i (core->config, "asm.varsum");
ds->show_varxs = r_config_get_i (core->config, "asm.varxs");
ds->maxrefs = r_config_get_i (core->config, "asm.maxrefs");
ds->show_lines = r_config_get_i (core->config, "asm.lines");
ds->linesright = r_config_get_i (core->config, "asm.linesright");
ds->show_indent = r_config_get_i (core->config, "asm.indent");
ds->indent_space = r_config_get_i (core->config, "asm.indentspace");
ds->tracespace = r_config_get_i (core->config, "asm.tracespace");
ds->cyclespace = r_config_get_i (core->config, "asm.cyclespace");
ds->show_dwarf = r_config_get_i (core->config, "asm.dwarf");
ds->dwarfFile = r_config_get_i (ds->core->config, "asm.dwarf.file");
ds->dwarfAbspath = r_config_get_i (ds->core->config, "asm.dwarf.abspath");
ds->show_lines_call = r_config_get_i (core->config, "asm.lines.call");
ds->show_lines_ret = r_config_get_i (core->config, "asm.lines.ret");
ds->show_size = r_config_get_i (core->config, "asm.size");
ds->show_trace = r_config_get_i (core->config, "asm.trace");
ds->linesout = r_config_get_i (core->config, "asm.linesout");
ds->adistrick = r_config_get_i (core->config, "asm.middle"); // TODO: find better name
ds->asm_demangle = r_config_get_i (core->config, "asm.demangle");
ds->asm_describe = r_config_get_i (core->config, "asm.describe");
ds->show_offset = r_config_get_i (core->config, "asm.offset");
ds->show_offdec = r_config_get_i (core->config, "asm.decoff");
ds->show_bbline = r_config_get_i (core->config, "asm.bbline");
ds->show_section = r_config_get_i (core->config, "asm.section");
ds->show_section_col = r_config_get_i (core->config, "asm.section.col");
ds->show_symbols = r_config_get_i (core->config, "asm.symbol");
ds->show_symbols_col = r_config_get_i (core->config, "asm.symbol.col");
ds->show_emu = r_config_get_i (core->config, "asm.emu");
ds->show_emu_str = r_config_get_i (core->config, "asm.emustr");
ds->show_emu_write = r_config_get_i (core->config, "asm.emuwrite");
ds->show_offseg = r_config_get_i (core->config, "asm.segoff");
ds->show_flags = r_config_get_i (core->config, "asm.flags");
ds->show_bytes = r_config_get_i (core->config, "asm.bytes");
ds->show_reloff = r_config_get_i (core->config, "asm.reloff");
ds->show_reloff_flags = r_config_get_i (core->config, "asm.reloff.flags");
ds->show_fcnlines = r_config_get_i (core->config, "asm.fcnlines");
ds->show_comments = r_config_get_i (core->config, "asm.comments");
ds->show_jmphints = r_config_get_i (core->config, "asm.jmphints");
ds->show_leahints = r_config_get_i (core->config, "asm.leahints");
ds->show_slow = r_config_get_i (core->config, "asm.slow");
ds->show_calls = r_config_get_i (core->config, "asm.calls");
ds->show_family = r_config_get_i (core->config, "asm.family");
ds->cmtcol = r_config_get_i (core->config, "asm.cmtcol");
ds->show_cmtflgrefs = r_config_get_i (core->config, "asm.cmtflgrefs");
ds->show_cycles = r_config_get_i (core->config, "asm.cycles");
ds->show_stackptr = r_config_get_i (core->config, "asm.stackptr");
ds->show_xrefs = r_config_get_i (core->config, "asm.xrefs");
ds->show_cmtrefs = r_config_get_i (core->config, "asm.cmtrefs");
ds->cmtfold = r_config_get_i (core->config, "asm.cmtfold");
ds->show_cmtoff = r_config_get (core->config, "asm.cmtoff");
ds->show_functions = r_config_get_i (core->config, "asm.functions");
ds->show_fcncalls = r_config_get_i (core->config, "asm.fcncalls");
ds->nbytes = r_config_get_i (core->config, "asm.nbytes");
ds->strenc = r_config_get (core->config, "asm.strenc");
core->print->bytespace = r_config_get_i (core->config, "asm.bytespace");
ds->cursor = 0;
ds->nb = 0;
ds->flagspace_ports = r_flag_space_get (core->flags, "ports");
ds->lbytes = r_config_get_i (core->config, "asm.lbytes");
ds->show_comment_right_default = r_config_get_i (core->config, "asm.cmtright");
ds->show_comment_right = ds->show_comment_right_default;
ds->show_flag_in_bytes = r_config_get_i (core->config, "asm.flagsinbytes");
ds->show_hints = r_config_get_i (core->config, "asm.hints");
ds->show_marks = r_config_get_i (core->config, "asm.marks");
ds->show_noisy_comments = r_config_get_i (core->config, "asm.noisy");
ds->pre = strdup (" ");
ds->ocomment = NULL;
ds->linesopts = 0;
ds->lastfail = 0;
ds->ocols = 0;
ds->lcols = 0;
ds->esil_old_pc = UT64_MAX;
ds->esil_regstate = NULL;
ds->esil_likely = false;
ds->showpayloads = r_config_get_i (ds->core->config, "asm.payloads");
ds->showrelocs = r_config_get_i (core->config, "bin.relocs");
if (ds->show_flag_in_bytes) {
ds->show_flags = 0;
}
if (r_config_get_i (core->config, "asm.lineswide")) {
ds->linesopts |= R_ANAL_REFLINE_TYPE_WIDE;
}
if (core->cons->vline) {
if (ds->show_utf8) {
ds->linesopts |= R_ANAL_REFLINE_TYPE_UTF8;
}
}
if (ds->show_lines) {
ds->ocols += 10; // XXX
}
if (ds->show_offset) {
ds->ocols += 14;
}
ds->lcols = ds->ocols + 2;
if (ds->show_bytes) {
ds->ocols += 20;
}
if (ds->show_trace) {
ds->ocols += 8;
}
if (ds->show_stackptr) {
ds->ocols += 4;
}
/* disasm */ ds->ocols += 20;
ds->nb = ds->nbytes? (1 + ds->nbytes * 2): 0;
ds->tries = 3;
if (core->print->cur_enabled) {
if (core->print->cur < 0) {
core->print->cur = 0;
}
ds->cursor = core->print->cur;
} else {
ds->cursor = -1;
}
if (r_config_get_i (core->config, "asm.lineswide")) {
ds->linesopts |= R_ANAL_REFLINE_TYPE_WIDE;
}
if (core->cons->vline) {
if (ds->show_utf8) {
ds->linesopts |= R_ANAL_REFLINE_TYPE_UTF8;
}
}
return ds;
}
static ut64 lastaddr = UT64_MAX;
static void ds_reflines_fini(RDisasmState *ds) {
RAnal *anal = ds->core->anal;
r_list_free (anal->reflines);
r_list_free (anal->reflines2);
anal->reflines = NULL;
anal->reflines2 = NULL;
R_FREE (ds->refline);
R_FREE (ds->refline2);
}
static void ds_reflines_init(RDisasmState *ds) {
RAnal *anal = ds->core->anal;
lastaddr = UT64_MAX;
if (ds->show_lines) {
ds_reflines_fini (ds);
anal->reflines = r_anal_reflines_get (anal,
ds->addr, ds->buf, ds->len, ds->l,
ds->linesout, ds->show_lines_call);
anal->reflines2 = r_anal_reflines_get (anal,
ds->addr, ds->buf, ds->len, ds->l,
ds->linesout, 1);
} else {
r_list_free (anal->reflines);
r_list_free (anal->reflines2);
anal->reflines = anal->reflines2 = NULL;
}
}
static void ds_reflines_fcn_init(RDisasmState *ds, RAnalFunction *fcn, const ut8* buf) {
RCore *core = ds->core;
RAnal *anal = core->anal;
if (ds->show_lines) {
// TODO: make anal->reflines implicit
free (anal->reflines); // TODO: leak
anal->reflines = r_anal_reflines_fcn_get (anal, fcn, -1, ds->linesout, ds->show_lines_call);
free (anal->reflines2); // TODO: leak
anal->reflines2 = r_anal_reflines_fcn_get (anal, fcn, -1, ds->linesout, 1);
} else {
r_list_free (anal->reflines);
r_list_free (anal->reflines2);
anal->reflines = anal->reflines2 = NULL;
}
}
static void ds_free(RDisasmState *ds) {
if (!ds) {
return;
}
r_anal_op_fini (&ds->analop);
r_anal_hint_free (ds->hint);
free (ds->comment);
free (ds->pre);
free (ds->line);
free (ds->refline);
free (ds->refline2);
free (ds->opstr);
free (ds->osl);
free (ds->sl);
free (ds->_tabsbuf);
R_FREE (ds);
}
static void ds_set_pre(RDisasmState *ds, const char * str) {
if (!ds->show_fcnlines) {
if (ds->pre && !*ds->pre) {
return;
}
str = "";
}
free (ds->pre);
ds->pre = strdup (str);
}
/* XXX move to r_print */
static char *colorize_asm_string(RCore *core, RDisasmState *ds) {
char *spacer = NULL;
char *source = ds->opstr? ds->opstr: ds->asmop.buf_asm;
char *hlstr = r_meta_get_string (ds->core->anal, R_META_TYPE_HIGHLIGHT, ds->at);
bool partial_reset = hlstr ? (*hlstr?true:false):false;
if (!ds->show_color || !ds->colorop) {
return strdup (source);
}
r_cons_strcat (r_print_color_op_type (core->print, ds->analop.type));
// workaround dummy colorizer in case of paired commands (tms320 & friends)
spacer = strstr (source, "||");
if (spacer) {
char *scol1, *s1 = r_str_ndup (source, spacer - source);
char *scol2, *s2 = strdup (spacer + 2);
scol1 = r_print_colorize_opcode (ds->core->print, s1, ds->color_reg, ds->color_num, partial_reset);
free (s1);
scol2 = r_print_colorize_opcode (ds->core->print, s2, ds->color_reg, ds->color_num, partial_reset);
free (s2);
if (!scol1) {
scol1 = strdup ("");
}
if (!scol2) {
scol2 = strdup ("");
}
source = malloc (strlen (scol1) + strlen (scol2) + 2 + 1); // reuse source variable
sprintf (source, "%s||%s", scol1, scol2);
free (scol1);
free (scol2);
return source;
}
return r_print_colorize_opcode (ds->core->print, source, ds->color_reg, ds->color_num, partial_reset);
}
static void ds_highlight_word(RDisasmState * ds, char *word, char *color) {
char *source = ds->opstr? ds->opstr: ds->asmop.buf_asm;
char * asm_str = r_str_highlight (source, word, color);
ds->opstr = asm_str? asm_str:source;
}
static void ds_build_op_str(RDisasmState *ds) {
RCore *core = ds->core;
if (!ds->opstr) {
ds->opstr = strdup (ds->asmop.buf_asm);
}
/* initialize */
core->parser->hint = ds->hint;
core->parser->relsub = r_config_get_i (core->config, "asm.relsub");
core->parser->relsub_addr = 0;
if (ds->varsub && ds->opstr) {
ut64 at = ds->vat;
RAnalFunction *f = r_anal_get_fcn_in (core->anal, at, R_ANAL_FCN_TYPE_NULL);
core->parser->varlist = r_anal_var_list_dynamic;
r_parse_varsub (core->parser, f, at, ds->analop.size,
ds->opstr, ds->strsub, sizeof (ds->strsub));
if (*ds->strsub) {
free (ds->opstr);
ds->opstr = strdup (ds->strsub);
}
if (core->parser->relsub) {
RList *list = r_anal_refs_get (core->anal, at);
RListIter *iter;
RAnalRef *ref;
r_list_foreach (list, iter, ref) {
if ((ref->type == R_ANAL_REF_TYPE_DATA
|| ref->type == R_ANAL_REF_TYPE_STRING)
&& ds->analop.type == R_ANAL_OP_TYPE_LEA) {
core->parser->relsub_addr = ref->addr;
break;
}
}
}
}
char *asm_str = colorize_asm_string (core, ds);
if (ds->decode) {
char *tmpopstr = r_anal_op_to_string (core->anal, &ds->analop);
// TODO: Use data from code analysis..not raw ds->analop here
// if we want to get more information
ds->opstr = tmpopstr? tmpopstr: asm_str? strdup (asm_str): strdup ("");
} else {
if (ds->hint && ds->hint->opcode) {
free (ds->opstr);
ds->opstr = strdup (ds->hint->opcode);
}
if (ds->filter) {
int ofs = core->parser->flagspace;
int fs = ds->flagspace_ports;
if (ds->analop.type == R_ANAL_OP_TYPE_IO) {
core->parser->notin_flagspace = -1;
core->parser->flagspace = fs;
} else {
if (fs != -1) {
core->parser->notin_flagspace = fs;
core->parser->flagspace = fs;
} else {
core->parser->notin_flagspace = -1;
core->parser->flagspace = -1;
}
}
if (ds->analop.refptr) {
ut64 num = r_io_read_i (core->io, ds->analop.ptr, 8);
if (core->parser->relsub_addr == 0) {
core->parser->relsub_addr = num;
}
}
r_parse_filter (core->parser, core->flags, asm_str, ds->str, sizeof (ds->str), core->print->big_endian);
core->parser->flagspace = ofs;
free (ds->opstr);
ds->opstr = strdup (ds->str);
} else {
free (ds->opstr);
ds->opstr = strdup (asm_str? asm_str: "");
}
}
if (ds->show_color) {
int i = 0;
char *word = NULL;
char *bgcolor = NULL;
char *wcdata = r_meta_get_string (ds->core->anal, R_META_TYPE_HIGHLIGHT, ds->at);
int argc = 0;
char **wc_array = r_str_argv (wcdata, &argc);
for (i = 0; i < argc; i++) {
bgcolor = strchr (wc_array[i], '\x1b');
word = r_str_newlen (wc_array[i], bgcolor - wc_array[i]);
ds_highlight_word (ds, word, bgcolor);
}
}
if (ds->use_esil) {
if (*R_STRBUF_SAFEGET (&ds->analop.esil)) {
free (ds->opstr);
ds->opstr = strdup (R_STRBUF_SAFEGET (&ds->analop.esil));
} else {
char *p = malloc (strlen (ds->opstr) + 6); /* What's up '\0' ? */
if (p) {
strcpy (p, "TODO,");
strcpy (p + 5, ds->opstr);
free (ds->opstr);
ds->opstr = p;
}
}
}
free (asm_str);
}
//removed hints bits from since r_anal_build_range_on_hints along with
//r_core_seek_archbits will be used instead. The ranges are built from hints
R_API RAnalHint *r_core_hint_begin(RCore *core, RAnalHint* hint, ut64 at) {
static char *hint_arch = NULL;
static char *hint_syntax = NULL;
r_anal_hint_free (hint);
hint = r_anal_hint_get (core->anal, at);
if (hint_arch) {
r_config_set (core->config, "asm.arch", hint_arch);
hint_arch = NULL;
}
if (hint_syntax) {
r_config_set (core->config, "asm.syntax", hint_syntax);
hint_syntax = NULL;
}
if (hint) {
/* arch */
if (hint->arch) {
if (!hint_arch) {
hint_arch = strdup (r_config_get (core->config, "asm.arch"));
}
r_config_set (core->config, "asm.arch", hint->arch);
}
/* arch */
if (hint->syntax) {
if (!hint_syntax) {
hint_syntax = strdup (r_config_get (core->config, "asm.syntax"));
}
r_config_set (core->config, "asm.syntax", hint->syntax);
}
}
return hint;
}
static void ds_beginline(RDisasmState *ds, RAnalFunction *f, bool nopre) {
const char *pre;
ds_setup_pre(ds, false, false);
pre = ds->pre;
if (nopre) {
if (*pre == '/' || *pre == '\\') {
pre = " ";
}
}
if (ds->show_functions && ds->show_fcnlines) {
if (*pre == '\\') {
ds_set_pre (ds, ds->core->cons->vline[LINE_VERT]);
}
ds_print_pre (ds);
}
char *tmp = ds->line;
ds->line = ds->refline2;
ds_print_lines_left (ds);
ds->line = tmp;
}
static void ds_pre_xrefs(RDisasmState *ds) {
RCore *core = ds->core;
if (ds->show_fcnlines) {
ds_setup_pre (ds, false, false);
if (*ds->pre != ' ') {
ds_set_pre (ds, core->cons->vline[LINE_VERT]);
ds->pre = r_str_append (ds->pre, " ");
}
}
ds_print_pre (ds);
char *tmp = ds->line;
ds->line = ds->refline2;
ds_print_lines_left (ds);
ds->line = tmp;
}
static void ds_show_refs(RDisasmState *ds) {
RList *list;
RAnalRef *ref;
RListIter *iter;
RFlagItem *flagi, *flagat;
char *nl = ds->show_comment_right ? "": "\n";
char *cmt;
if (!ds->show_cmtrefs) {
return;
}
list = r_anal_xrefs_get_from (ds->core->anal, ds->at);
r_list_foreach (list, iter, ref) {
cmt = r_meta_get_string (ds->core->anal, R_META_TYPE_COMMENT, ref->addr);
flagi = r_flag_get_i (ds->core->flags, ref->addr);
flagat = r_flag_get_at (ds->core->flags, ref->addr, false);
//ds_align_comment (ds);
if (ds->show_color) {
r_cons_strcat (ds->color_comment);
}
if (flagi && flagat && (strcmp (flagi->name, flagat->name) != 0)) {
_ds_comment_align_ (ds, true, false);
ds_comment (ds, true, "; (%s)%s", flagi->name, nl);
}
if (cmt) {
_ds_comment_align_ (ds, true, false);
ds_comment (ds, true, "; (%s)%s", cmt, nl);
}
if (ref->type & R_ANAL_REF_TYPE_CALL) {
RAnalOp aop;
ut8 buf[12];
r_core_read_at (ds->core, ref->at, buf, sizeof (buf));
r_anal_op (ds->core->anal, &aop, ref->at, buf, sizeof (buf));
if ((aop.type & R_ANAL_OP_TYPE_MASK) == R_ANAL_OP_TYPE_UCALL) {
RAnalFunction * fcn = r_anal_get_fcn_at (ds->core->anal,
ref->addr, R_ANAL_FCN_TYPE_NULL);
_ds_comment_align_ (ds, true, false);
if (fcn) {
ds_comment (ds, true, "; %s%s", fcn->name, nl);
} else {
ds_comment (ds, true, "; 0x%" PFMT64x"%s", ref->addr, nl);
}
}
}
ds_print_color_reset (ds);
}
}
static void ds_show_xrefs(RDisasmState *ds) {
RList *xrefs;
RAnalRef *refi;
RListIter *iter;
RCore *core = ds->core;
bool demangle = r_config_get_i (core->config, "bin.demangle");
const char *lang = demangle ? r_config_get (core->config, "bin.lang") : NULL;
char *name, *tmp;
int count = 0;
if (!ds->show_xrefs || !ds->show_comments) {
return;
}
/* show xrefs */
xrefs = r_anal_xref_get (core->anal, ds->at);
if (!xrefs) {
return;
}
if (r_list_length (xrefs) > ds->maxrefs) {
int cols = r_cons_get_size (NULL);
cols -= 15;
cols /= 23;
ds_pre_xrefs (ds);
ds_comment (ds, false, " %s; XREFS: ", ds->show_color? ds->pal_comment: "");
r_list_foreach (xrefs, iter, refi) {
ds_comment (ds, false, "%s 0x%08"PFMT64x" ",
r_anal_xrefs_type_tostring (refi->type), refi->addr);
if (count == cols) {
if (iter->n) {
ds_print_color_reset (ds);
r_cons_newline ();
ds_pre_xrefs (ds);
ds_comment (ds, false, " %s; XREFS: ", ds->show_color? ds->pal_comment: "");
}
count = 0;
} else {
count++;
}
}
ds_print_color_reset (ds);
r_cons_newline ();
r_list_free (xrefs);
return;
}
r_list_foreach (xrefs, iter, refi) {
if (refi->at == ds->at) {
RAnalFunction *fun = r_anal_get_fcn_in (core->anal, refi->addr, -1);
if (fun) {
name = strdup (fun->name);
} else {
RFlagItem *f = r_flag_get_at (core->flags, refi->addr, true);
if (f) {
name = r_str_newf ("%s + %d", f->name, refi->addr - f->offset);
} else {
name = strdup ("unk");
}
}
if (demangle) {
tmp = r_bin_demangle (core->bin->cur, lang, name, refi->addr);
if (tmp) {
free (name);
name = tmp;
}
}
ds_pre_xrefs (ds);
//those extra space to align
ds_comment (ds, false, " %s; %s XREF from 0x%08"PFMT64x" (%s)%s\n",
COLOR (ds, pal_comment), r_anal_xrefs_type_tostring (refi->type),
refi->addr, name, COLOR_RESET (ds));
R_FREE (name);
}
}
r_list_free (xrefs);
}
static void ds_atabs_option(RDisasmState *ds) {
int n, i = 0, comma = 0, word = 0;
int size, brackets = 0;
char *t, *b;
if (!ds || !ds->atabs) {
return;
}
size = strlen (ds->asmop.buf_asm) * (ds->atabs + 1) * 4;
if (size < 1 || size < strlen (ds->asmop.buf_asm)) {
return;
}
free (ds->opstr);
ds->opstr = b = malloc (size + 1);
strncpy (b, ds->asmop.buf_asm, R_MIN (size, R_ASM_BUFSIZE));
b[size] = 0;
for (; *b; b++, i++) {
if (*b == '(' || *b == '[') {
brackets++;
}
if (*b == ')' || *b == ']') {
brackets--;
}
if (*b == ',') {
comma = 1;
}
if (*b != ' ') {
continue;
}
if (word > 0 && !comma) {
continue; //&& b[1]=='[') continue;
}
if (brackets > 0) {
continue;
}
comma = 0;
brackets = 0;
n = (ds->atabs-i);
t = strdup (b + 1); //XXX slow!
if (n < 1) {
n = 1;
}
memset (b, ' ', n);
b += n;
strcpy (b, t);
free (t);
i = 0;
word++;
if (ds->atabsonce) {
break;
}
}
}
static int handleMidFlags(RCore *core, RDisasmState *ds, bool print) {
RFlagItem *fi;
int i;
ds->hasMidflag = false;
if (ds->midcursor && core->print->cur != -1) {
ut64 cur = core->offset + core->print->cur;
ut64 from = ds->at;
ut64 to = ds->at + ds->oplen;
if (cur > from && cur < to) {
return cur - from;
}
}
for (i = 1; i < ds->oplen; i++) {
fi = r_flag_get_i (core->flags, ds->at + i);
if (fi) {
if (ds->midflags == 2 && (fi->name[0] == '$' || fi->realname[0] == '$')) {
i = 0;
} else if (!strncmp (fi->name, "hit.", 4)) { // use search.prefix ?
i = 0;
} else if (!strncmp (fi->name, "str.", 4)) {
ds->midflags = R_MIDFLAGS_REALIGN;
} else if (!strncmp (fi->name, "reloc.", 6)) {
if (print) {
r_cons_printf ("(%s)\n", fi->name);
}
continue;
} else if (ds->midflags == R_MIDFLAGS_SYMALIGN) {
if (strncmp (fi->name, "sym.", 4)) {
continue;
}
}
ds->hasMidflag = true;
return i;
}
}
return 0;
}
static void ds_print_show_cursor(RDisasmState *ds) {
RCore *core = ds->core;
char res[] = " ";
void *p;
if (!ds->show_marks) {
return;
}
int q = core->print->cur_enabled &&
ds->cursor >= ds->index &&
ds->cursor < (ds->index + ds->asmop.size);
p = r_bp_get_at (core->dbg->bp, ds->at);
if (ds->midflags) {
(void)handleMidFlags (core, ds, false);
}
if (p) {
res[0] = 'b';
}
if (ds->hasMidflag) {
res[1] = '~';
}
if (q) {
if (ds->cursor == ds->index) {
res[2] = '*';
} else {
int i = 2, diff = ds->cursor - ds->index;
if (diff > 9) {
res[i++] = '0' + (diff / 10);
}
res[i] = '0' + (diff % 10);
}
}
r_cons_strcat (res);
}
static int var_comparator(const RAnalVar *a, const RAnalVar *b){
if (a && b) {
return a->delta > b->delta;
}
return false;
}
//TODO: this function is a temporary fix. All analysis should be based on realsize. However, now for same architectures realisze is not used
static ut32 tmp_get_realsize (RAnalFunction *f) {
ut32 size = r_anal_fcn_realsize (f);
return (size > 0) ? size : r_anal_fcn_size (f);
}
static void ds_show_functions_argvar(RDisasmState *ds, RAnalVar *var, const char *base, bool is_var, char sign) {
int delta = sign == '+' ? var->delta : -var->delta;
const char *arg_or_var = is_var ? "var" : "arg";
r_cons_printf ("%s %s %s @ %s%c0x%x", arg_or_var, var->type, var->name,
base, sign, delta);
}
static void printVarSummary(RDisasmState *ds, RList *list, const char *name) {
RAnalVar *var;
RListIter *iter;
int vars = 0;
int args = 0;
r_list_foreach (list, iter, var) {
if (var->delta > 0) {
args++;
} else {
vars++;
}
}
r_cons_printf ("%s%s%s", COLOR (ds, color_fline), ds->pre, COLOR_RESET (ds));
r_cons_printf ("%s: %d (vars %d, args %d)\n", name, vars + args, vars, args);
}
static void ds_show_functions(RDisasmState *ds) {
RAnalFunction *f;
RCore *core = ds->core;
bool demangle, call;
const char *lang;
char *fcn_name;
char *sign;
if (!ds->show_functions) {
return;
}
demangle = r_config_get_i (core->config, "bin.demangle");
call = r_config_get_i (core->config, "asm.calls");
lang = demangle ? r_config_get (core->config, "bin.lang") : NULL;
f = r_anal_get_fcn_in (core->anal, ds->at, R_ANAL_FCN_TYPE_NULL);
if (!f || (f->addr != ds->at)) {
return;
}
if (demangle) {
fcn_name = r_bin_demangle (core->bin->cur, lang, f->name, f->addr);
if (!fcn_name) {
fcn_name = strdup (f->name);
}
} else {
fcn_name = f->name;
}
sign = r_anal_fcn_to_string (core->anal, f);
if (f->type == R_ANAL_FCN_TYPE_LOC) {
r_cons_printf ("%s%s ", COLOR (ds, color_fline),
core->cons->vline[LINE_CROSS]); // |-
r_cons_printf ("%s%s%s %d\n", COLOR (ds, color_floc),
fcn_name, COLOR_RESET (ds), r_anal_fcn_size (f));
} else {
const char *space = ds->show_fcnlines ? " " : "";
const char *fcntype;
char cmt[32];
get_bits_comment (core, f, cmt, sizeof (cmt));
switch (f->type) {
case R_ANAL_FCN_TYPE_FCN:
case R_ANAL_FCN_TYPE_SYM:
fcntype = "fcn"; break;
case R_ANAL_FCN_TYPE_IMP:
fcntype = "imp"; break;
default:
fcntype = "loc"; break;
}
#if SLOW_BUT_OK
int corner = (f->size <= ds->analop.size) ? RDWN_CORNER : LINE_VERT;
corner = LINE_VERT; // 99% of cases
RFlagItem *item = r_flag_get_i (core->flags, f->addr);
corner = item ? LINE_VERT : RDWN_CORNER;
if (item) {
corner = 0;
}
#endif
ds_set_pre (ds, core->cons->vline[CORNER_TL]);
if (ds->show_flgoff) {
r_cons_printf ("%s%s", COLOR (ds, color_fline), ds->pre);
if (ds->show_fcnlines) {
r_cons_printf (" ");
}
ds_print_lines_left (ds);
ds_print_offset (ds);
r_cons_printf ("%s%s%s(%s) %s%s%s %d\n",
space, COLOR_RESET (ds), COLOR (ds, color_fname),
fcntype, fcn_name, cmt, COLOR_RESET (ds), tmp_get_realsize (f));
} else {
r_cons_printf ("%s%s%s%s%s(%s) %s%s%s %d\n",
COLOR (ds, color_fline), ds->pre,
space, COLOR_RESET (ds), COLOR (ds, color_fname),
fcntype, fcn_name, cmt, COLOR_RESET (ds), tmp_get_realsize (f));
}
}
if (sign) {
r_cons_printf ("// %s\n", sign);
}
R_FREE (sign);
ds_set_pre (ds, core->cons->vline[LINE_VERT]);
if (ds->show_fcnlines) {
ds->pre = r_str_append (ds->pre, " ");
}
ds->stackptr = core->anal->stackptr;
if (ds->show_vars && ds->show_varsum) {
RList *bp_vars = r_anal_var_list (core->anal, f, 'b');
RList *rg_vars = r_anal_var_list (core->anal, f, 'r');
RList *sp_vars = r_anal_var_list (core->anal, f, 's');
printVarSummary (ds, bp_vars, "bp");
printVarSummary (ds, sp_vars, "sp");
printVarSummary (ds, rg_vars, "rg");
r_list_free (bp_vars);
r_list_free (rg_vars);
r_list_free (sp_vars);
} else if (ds->show_vars) {
char spaces[32];
RAnalVar *var;
RListIter *iter;
RList *args = r_anal_var_list (core->anal, f, 'b');
RList *regs = r_anal_var_list (core->anal, f, 'r');
RList *sp_vars = r_anal_var_list (core->anal, f, 's');
r_list_sort (args, (RListComparator)var_comparator);
r_list_sort (regs, (RListComparator)var_comparator);
r_list_sort (sp_vars, (RListComparator)var_comparator);
if (call) {
r_cons_printf ("%s%s%s %s %s%s (",
COLOR (ds, color_fline), ds->pre,
COLOR_RESET (ds), COLOR (ds, color_fname),
fcn_name, COLOR_RESET (ds));
bool comma = true;
bool arg_bp = false;
int tmp_len;
r_list_foreach (regs, iter, var) {
tmp_len = strlen (var->type);
r_cons_printf ("%s%s%s%s", var->type,
tmp_len && var->type[tmp_len - 1] == '*' ? "" : " ",
var->name, iter->n ? ", " : "");
}
r_list_foreach (args, iter, var) {
if (var->delta > 0) {
if (!r_list_empty (regs) && comma) {
r_cons_printf (", ");
comma = false;
}
arg_bp = true;
tmp_len = strlen (var->type);
r_cons_printf ("%s%s%s%s", var->type,
tmp_len && var->type[tmp_len - 1] =='*' ? "" : " ",
var->name, iter->n ? ", " : "");
}
}
comma = true;
r_list_foreach (sp_vars, iter, var) {
if (var->delta > f->maxstack) {
if ((arg_bp || !r_list_empty (regs)) && comma) {
comma = false;
r_cons_printf (", ");
}
tmp_len = strlen (var->type);
r_cons_printf ("%s%s%s%s", var->type,
tmp_len && var->type[tmp_len - 1] =='*' ? "" : " ",
var->name, iter->n ? ", " : "");
}
}
r_cons_printf (");\n");
}
r_list_join (args, sp_vars);
r_list_join (args, regs);
r_list_foreach (args, iter, var) {
char *tmp;
int idx;
RAnal *anal = ds->core->anal;
memset (spaces, ' ', sizeof(spaces));
idx = 12 - strlen (var->name);
if (idx < 0) {
idx = 0;
}
spaces[idx] = 0;
ds_setup_print_pre (ds, false, true);
tmp = ds->line;
ds->line = ds->refline2;
ds_print_lines_left (ds);
ds->line = tmp;
if (ds->show_flgoff) {
ds_print_offset (ds);
r_cons_printf (" ");
}
r_cons_printf ("%s; ", COLOR (ds, color_other));
switch (var->kind) {
case 'b': {
char sign = var->delta > 0 ? '+' : '-';
bool is_var = var->delta <= 0;
ds_show_functions_argvar (ds, var,
anal->reg->name[R_REG_NAME_BP], is_var, sign);
}
break;
case 'r': {
RRegItem *i = r_reg_index_get (anal->reg, var->delta);
if (!i) {
eprintf("Register not found");
break;
}
r_cons_printf ("reg %s %s @ %s",
var->type, var->name, i->name);
}
break;
case 's': {
bool is_var = var->delta < f->maxstack;
ds_show_functions_argvar (ds, var,
anal->reg->name[R_REG_NAME_SP],
is_var, '+');
}
break;
}
char *comment = r_meta_get_var_comment (anal, var->kind, var->delta, f->addr);
if (comment) {
r_cons_printf (" %s; %s", COLOR(ds, color_comment), comment);
}
r_cons_println (COLOR_RESET (ds));
}
r_list_free (regs);
// it's already empty, but rlist instance is still there
r_list_free (args);
r_list_free (sp_vars);
}
if (demangle) {
free (fcn_name);
}
}
static void ds_setup_print_pre(RDisasmState *ds, bool tail, bool middle) {
ds_setup_pre (ds, tail, middle);
ds_print_pre (ds);
}
static void ds_setup_pre(RDisasmState *ds, bool tail, bool middle) {
RCore *core = ds->core;
RAnalFunction *f;
if (!ds->show_functions) {
return;
}
f = r_anal_get_fcn_in (core->anal, ds->at, R_ANAL_FCN_TYPE_NULL);
if (f) {
if (f->addr == ds->at) {
if (ds->analop.size == r_anal_fcn_size (f) && !middle) {
ds_set_pre (ds, core->cons->vline[CORNER_BL]);
} else {
ds_set_pre (ds, core->cons->vline[LINE_VERT]);
}
} else if (f->addr + r_anal_fcn_size (f) - ds->analop.size == ds->at) {
ds_set_pre (ds, core->cons->vline[CORNER_BL]);
} else if (r_anal_fcn_is_in_offset (f, ds->at)) {
ds_set_pre (ds, core->cons->vline[LINE_VERT]);
}
if (ds->show_fcnlines) {
ds->pre = r_str_append (ds->pre, " ");
}
if (tail) {
r_str_replace_char (ds->pre, '\\', ' ');
r_str_replace_char (ds->pre, '|', '\\');
}
}
}
static void ds_print_pre(RDisasmState *ds) {
RCore *core = ds->core;
RAnalFunction *f;
if (!ds->show_functions) {
return;
}
f = r_anal_get_fcn_in (core->anal, ds->at, R_ANAL_FCN_TYPE_NULL);
if (f) {
r_cons_printf ("%s%s%s", COLOR (ds, color_fline),
ds->pre, COLOR_RESET (ds));
} else {
if (ds->show_lines) {
r_cons_printf (" ");
} else if (ds->show_fcnlines) {
r_cons_printf (" ");
}
}
}
//XXX review this with asm.cmtright
static void ds_show_comments_right(RDisasmState *ds) {
int linelen, maxclen ;
RCore *core = ds->core;
RFlagItem *item;
/* show comment at right? */
int scr = ds->show_comment_right;
if (!ds->show_comments) {
return;
}
//RAnalFunction *f = r_anal_get_fcn_in (core->anal, ds->at, R_ANAL_FCN_TYPE_NULL);
item = r_flag_get_i (core->flags, ds->at);
ds->comment = r_meta_get_string (core->anal, R_META_TYPE_COMMENT, ds->at);
if (!ds->comment && item && item->comment && *item->comment) {
ds->ocomment = item->comment;
ds->comment = strdup (item->comment);
}
if (!ds->comment) {
return;
}
maxclen = strlen (ds->comment) + 5;
linelen = maxclen;
if (ds->show_comment_right_default) {
if (ds->ocols + maxclen < core->cons->columns) {
if (ds->comment && *ds->comment && strlen (ds->comment) < maxclen) {
if (!strchr (ds->comment, '\n')) { // more than one line?
ds->show_comment_right = 1;
}
}
}
}
if (!ds->show_comment_right) {
int mycols = ds->lcols;
if (mycols + linelen + 10 > core->cons->columns) {
mycols = 0;
}
mycols /= 2;
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
/* print multiline comment */
if (ds->cmtfold) {
char * p = strdup (ds->comment);
char *q = strchr (p, '\n');
if (q) {
*q = 0;
r_cons_strcat (p);
r_cons_strcat (" ; [z] unfold");
}
free (p);
} else {
ds->comment = r_str_prefix_all (ds->comment, "; ");
ALIGN;
ds_comment (ds, false, ds->comment);
}
if (ds->show_color) {
ds_print_color_reset (ds);
}
R_FREE (ds->comment);
r_cons_newline ();
/* flag one */
if (item && item->comment && ds->ocomment != item->comment) {
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
r_cons_newline ();
r_cons_strcat (" ; ");
r_cons_strcat_justify (item->comment, mycols, ';');
r_cons_newline ();
if (ds->show_color) {
ds_print_color_reset (ds);
}
}
}
ds->show_comment_right = scr;
}
static void ds_show_flags(RDisasmState *ds) {
//const char *beginch;
RFlagItem *flag;
RListIter *iter;
RAnalFunction *f;
const RList /*RFlagList*/ *flaglist;
if (!ds->show_flags) {
return;
}
RCore *core = ds->core;
f = r_anal_get_fcn_in (core->anal, ds->at, R_ANAL_FCN_TYPE_NULL);
flaglist = r_flag_get_list (core->flags, ds->at);
r_list_foreach (flaglist, iter, flag) {
if (f && f->addr == flag->offset && !strcmp (flag->name, f->name)) {
// do not show flags that have the same name as the function
continue;
}
if (ds->show_flgoff) {
if (f) {
ds_beginline (ds, f, false);
} else {
ds_print_lines_left (ds);
if (ds->show_fcnlines) {
r_cons_printf (" ");
}
}
ds_print_offset (ds);
r_cons_printf (" ");
} else {
r_cons_printf ((f && ds->at > f->addr)? "| " : " ");
ds_print_lines_left (ds);
r_cons_printf (";-- ");
}
if (ds->show_color) {
r_cons_strcat (ds->color_flag);
}
if (ds->asm_demangle && flag->realname) {
const char *lang = r_config_get (core->config, "bin.lang");
char *name = r_bin_demangle (core->bin->cur, lang, flag->realname, flag->offset);
r_cons_printf ("%s:\n", name? name: flag->realname);
R_FREE (name);
} else {
r_cons_printf ("%s:\n", flag->name);
}
}
}
static void ds_update_ref_lines(RDisasmState *ds) {
if (ds->show_lines) {
ds->line = r_anal_reflines_str (ds->core, ds->at, ds->linesopts);
if (ds->show_color) {
char *newstr = r_str_newf ("%s%s%s", ds->color_flow2, "|", ds->color_flow);
ds->line = r_str_replace (ds->line, ds->core->cons->vline[LINE_UP], newstr, true);
free (newstr);
}
free (ds->refline);
ds->refline = ds->line? strdup (ds->line): NULL;
free (ds->refline2);
ds->refline2 = r_anal_reflines_str (ds->core, ds->at,
ds->linesopts | R_ANAL_REFLINE_TYPE_MIDDLE);
if (ds->line) {
if (strchr (ds->line, '<')) {
ds->indent_level++;
}
if (strchr (ds->line, '>')) {
ds->indent_level--;
}
} else {
ds->indent_level = 0;
}
} else {
R_FREE (ds->line);
free (ds->refline);
free (ds->refline2);
ds->refline = strdup ("");
ds->refline2 = strdup ("");
}
}
static int ds_disassemble(RDisasmState *ds, ut8 *buf, int len) {
RCore *core = ds->core;
int ret;
const char *info;
Sdb *s = core->anal->sdb_meta;
char key[100];
ut64 mt_sz = UT64_MAX;
//handle meta info to fix ds->oplen
snprintf (key, sizeof (key) - 1, "meta.0x%"PFMT64x, ds->at);
info = sdb_const_get (s, key, 0);
if (info) {
for (;*info; info++) {
switch (*info) {
case R_META_TYPE_DATA:
case R_META_TYPE_STRING:
case R_META_TYPE_FORMAT:
case R_META_TYPE_MAGIC:
case R_META_TYPE_HIDE:
snprintf (key, sizeof (key) - 1,
"meta.%c.0x%"PFMT64x, *info, ds->at);
sdb_const_get (s, key, 0);
mt_sz = sdb_array_get_num (s, key, 0, 0);
if (mt_sz) {
break;
}
break;
}
}
}
if (ds->hint && ds->hint->size) {
ds->oplen = ds->hint->size;
}
if (ds->hint && ds->hint->opcode) {
free (ds->opstr);
ds->opstr = strdup (ds->hint->opcode);
return true;
}
ret = r_asm_disassemble (core->assembler, &ds->asmop, buf, len);
if (ds->asmop.size < 1) {
ds->asmop.size = 1;
}
if (ds->show_nodup) {
const char *opname = (ret < 1)? "invalid": ds->asmop.buf_asm;
if (ds->prev_ins && !strcmp (ds->prev_ins, opname)) {
if (!ds->prev_ins_eq) {
ds->prev_ins_eq = true;
r_cons_printf ("...");
}
ds->prev_ins_count++;
return -31337;
}
if (ds->prev_ins_eq) {
r_cons_printf ("dup (%d)\n", ds->prev_ins_count);
}
ds->prev_ins_count = 0;
ds->prev_ins_eq = false;
if (ds->prev_ins) {
R_FREE (ds->prev_ins);
}
ds->prev_ins = strdup (ds->asmop.buf_asm);
}
ds->oplen = ds->asmop.size;
if (ret < 1) {
ret = -1;
#if HASRETRY
if (!ds->cbytes && ds->tries > 0) {
ds->addr = core->assembler->pc;
ds->tries--;
ds->idx = 0;
ds->retry = true;
return ret;
}
#endif
ds->lastfail = 1;
ds->asmop.size = (ds->hint && ds->hint->size) ? ds->hint->size : 1;
ds->oplen = ds->asmop.size;
} else {
ds->lastfail = 0;
ds->asmop.size = (ds->hint && ds->hint->size)
? ds->hint->size
: r_asm_op_get_size (&ds->asmop);
ds->oplen = ds->asmop.size;
}
if (ds->pseudo) {
r_parse_parse (core->parser, ds->opstr
? ds->opstr
: ds->asmop.buf_asm,
ds->str);
free (ds->opstr);
ds->opstr = strdup (ds->str);
}
if (ds->acase) {
r_str_case (ds->asmop.buf_asm, 1);
} else if (ds->capitalize) {
ds->asmop.buf_asm[0] = toupper (ds->asmop.buf_asm[0]);
}
if (info && mt_sz != UT64_MAX) {
ds->oplen = mt_sz;
}
return ret;
}
static void ds_control_flow_comments(RDisasmState *ds) {
if (ds->show_comments && ds->show_cmtflgrefs) {
RFlagItem *item;
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_JMP:
case R_ANAL_OP_TYPE_CJMP:
case R_ANAL_OP_TYPE_CALL:
item = r_flag_get_i (ds->core->flags, ds->analop.jump);
if (item && item->comment) {
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
ds_align_comment (ds);
r_cons_printf (" ; ref to %s: %s\n", item->name, item->comment);
ds_print_color_reset (ds);
}
break;
}
}
}
static void ds_print_lines_right(RDisasmState *ds){
if (ds->linesright && ds->show_lines && ds->line) {
r_cons_printf ("%s%s%s", COLOR (ds, color_flow), ds->line, COLOR_RESET (ds));
}
}
static void printCol(RDisasmState *ds, char *sect, int cols, const char *color) {
int pre, post;
if (cols < 8) cols = 8;
int outsz = cols + 32;
char *out = malloc (outsz);
if (!out) {
return;
}
memset (out, ' ', outsz);
int sect_len = strlen (sect);
if (sect_len > cols) {
sect[cols-2] = '.';
sect[cols-1] = '.';
sect[cols] = 0;
}
if (ds->show_color) {
pre = strlen (color) + 1;
post = strlen (color) + 1 + strlen (Color_RESET);
snprintf (out, outsz-pre, "%s %s", color, sect);
strcat (out, Color_RESET);
out[outsz-1] = 0;
} else {
strcpy (out + 1, sect);
pre = 1;
post = 0;
}
out[strlen (out)] = ' ';
out[cols + post] = 0;
r_cons_strcat (out);
free (out);
}
static void ds_print_lines_left(RDisasmState *ds) {
RCore *core = ds->core;
if (ds->show_section) {
char *sect = strdup (get_section_name (core, ds->at));
printCol (ds, sect, ds->show_section_col, ds->color_reg);
free (sect);
}
if (ds->show_symbols) {
static RFlagItem sfi = R_EMPTY;
const char *name = "";
int delta = 0;
if (ds->fcn) {
sfi.offset = ds->fcn->addr;
sfi.name = ds->fcn->name;
ds->lastflag = &sfi;
} else {
RFlagItem *fi = r_flag_get_at (core->flags, ds->at, false);
if (fi) { // && (!ds->lastflag || fi->offset != ds->at)) {
sfi.offset = fi->offset;
sfi.name = fi->name;
ds->lastflag = &sfi;
}
}
if (ds->lastflag && ds->lastflag->name) {
name = ds->lastflag->name;
delta = ds->at - ds->lastflag->offset;
}
{
char * str = r_str_newf ("%s + %-4d", name, delta);
printCol (ds, str, ds->show_symbols_col, ds->color_num);
free (str);
}
}
if (!ds->linesright && ds->show_lines && ds->line) {
r_cons_printf ("%s%s%s", COLOR (ds, color_flow), ds->line, COLOR_RESET (ds));
}
}
static void ds_print_family(RDisasmState *ds) {
if (ds->show_family) {
const char *familystr = r_anal_op_family_to_string (ds->analop.family);
r_cons_printf ("%5s ", familystr);
}
}
static void ds_print_cycles(RDisasmState *ds) {
if (ds->show_cycles) {
if (!ds->analop.failcycles) {
r_cons_printf ("%3d ", ds->analop.cycles);
} else {
r_cons_printf ("%3d %3d ", ds->analop.cycles, ds->analop.failcycles);
}
}
if (ds->cyclespace) {
char spaces [32];
int times = R_MIN (ds->analop.cycles/4, 30); // limit to 30
memset (spaces, ' ', sizeof (spaces));
spaces[times] = 0;
r_cons_strcat (spaces);
}
}
static void ds_print_stackptr(RDisasmState *ds) {
if (ds->show_stackptr) {
r_cons_printf ("%5d%s", ds->stackptr,
ds->analop.type == R_ANAL_OP_TYPE_CALL?">":
ds->analop.stackop == R_ANAL_STACK_ALIGN? "=":
ds->stackptr > ds->ostackptr? "+":
ds->stackptr < ds->ostackptr? "-": " ");
ds->ostackptr = ds->stackptr;
switch (ds->analop.stackop) {
case R_ANAL_STACK_RESET:
ds->stackptr = 0;
break;
case R_ANAL_STACK_INC:
ds->stackptr += ds->analop.stackptr;
break;
}
/* XXX if we reset the stackptr 'ret 0x4' has not effect.
* Use RAnalFunction->RAnalOp->stackptr? */
if (ds->analop.type == R_ANAL_OP_TYPE_RET)
ds->stackptr = 0;
}
}
static void ds_print_offset(RDisasmState *ds) {
RCore *core = ds->core;
ut64 at = ds->vat;
r_print_set_screenbounds (core->print, at);
if (ds->show_offset) {
static RFlagItem sfi = R_EMPTY;
const char *label = NULL;
RFlagItem *fi;
int delta = -1;
bool show_trace = false;
if (ds->show_reloff) {
RAnalFunction *f = r_anal_get_fcn_at (core->anal, at, R_ANAL_FCN_TYPE_NULL);
if (!f) {
f = r_anal_get_fcn_in (core->anal, at, R_ANAL_FCN_TYPE_NULL);
}
if (f) {
delta = at - f->addr;
sfi.name = f->name;
sfi.offset = f->addr;
ds->lastflag = &sfi;
label = f->name;
} else {
if (ds->show_reloff_flags) {
/* XXX: this is wrong if starting to disasm after a flag */
fi = r_flag_get_i (core->flags, at);
if (fi) {
ds->lastflag = fi;
}
if (ds->lastflag) {
if (ds->lastflag->offset == at) {
delta = 0;
} else {
delta = at - ds->lastflag->offset;
}
} else {
delta = at - core->offset;
}
if (ds->lastflag) {
label = ds->lastflag->name;
}
}
}
if (!ds->lastflag) {
delta = 0;
}
}
if (ds->show_trace) {
RDebugTracepoint *tp = NULL;
tp = r_debug_trace_get (ds->core->dbg, ds->at);
show_trace = (tp?!!tp->count:false);
}
r_print_offset (core->print, at, (at == ds->dest) || show_trace,
ds->show_offseg, ds->show_offdec, delta, label);
}
if (ds->atabsoff > 0) {
if (ds->_tabsoff != ds->atabsoff) {
char *b = ds->_tabsbuf;
// TODO optimize to avoid down resizing
b = malloc (ds->atabsoff + 1);
if (b) {
memset (b, ' ', ds->atabsoff);
b[ds->atabsoff] = 0;
free (ds->_tabsbuf);
ds->_tabsbuf = b;
ds->_tabsoff = ds->atabsoff;
}
}
r_cons_strcat (ds->_tabsbuf);
}
}
static void ds_print_op_size(RDisasmState *ds) {
if (ds->show_size) {
int size = ds->oplen;
r_cons_printf ("%d ", size); //ds->analop.size);
}
}
static void ds_print_trace(RDisasmState *ds) {
RDebugTracepoint *tp = NULL;
if (ds->show_trace) {
tp = r_debug_trace_get (ds->core->dbg, ds->at);
r_cons_printf ("%02x:%04x ", tp?tp->times:0, tp?tp->count:0);
}
if (ds->tracespace) {
char spaces [32];
int times;
if (!tp) {
tp = r_debug_trace_get (ds->core->dbg, ds->at);
}
if (tp) {
times = R_MIN (tp->times, 30); // limit to 30
memset (spaces, ' ', sizeof (spaces));
spaces[times] = 0;
r_cons_strcat (spaces);
}
}
}
static void ds_adistrick_comments(RDisasmState *ds) {
if (ds->adistrick) {
ds->middle = r_anal_reflines_middle (ds->core->anal,
ds->core->anal->reflines, ds->at, ds->analop.size);
}
}
static bool ds_print_data_type(RDisasmState *ds, const ut8 *buf, int ib, int size) {
RCore *core = ds->core;
const char *type = NULL;
char msg[64];
const int isSigned = (ib == 1 || ib == 8 || ib == 10)? 1: 0;
switch (size) {
case 1: type = isSigned? ".char": ".byte"; break;
case 2: type = isSigned? ".int16": ".word"; break;
case 4: type = isSigned? ".int32": ".dword"; break;
case 8: type = isSigned? ".int64": ".qword"; break;
default: return false;
}
ut64 n = r_read_ble (buf, core->print->big_endian, size * 8);
{
int q = core->print->cur_enabled &&
ds->cursor >= ds->index &&
ds->cursor < (ds->index + size);
if (q) {
if (ds->cursor > ds->index) {
int diff = ds->cursor - ds->index;
r_cons_printf (" %d ", diff);
} else if (ds->cursor == ds->index) {
r_cons_printf (" * ");
} else {
r_cons_printf (" ");
}
} else {
r_cons_printf (" ");
}
}
switch (ib) {
case 1:
r_str_bits (msg, buf, size * 8, NULL);
r_cons_printf ("%s %sb", type, msg);
break;
case 8:
r_cons_printf ("%s %oo", type, n);
break;
case 10:
r_cons_printf ("%s %d", type, n);
break;
default:
switch (size) {
case 1:
r_cons_printf ("%s 0x%02x", type, n);
break;
case 2:
r_cons_printf ("%s 0x%04x", type, n);
break;
case 4:
r_cons_printf ("%s 0x%08x", type, n);
break;
case 8:
r_cons_printf ("%s 0x%016" PFMT64x, type, n);
break;
default:
return false;
}
}
if (size == 4 || size == 8) {
if (r_str_startswith (r_config_get (core->config, "asm.arch"), "arm")) {
ut64 bits = r_config_get_i (core->config, "asm.bits");
//adjust address for arm/thumb address
if (bits < 64) {
if (n & 1) {
n--;
}
}
}
const RList *flags = r_flag_get_list (core->flags, n);
RListIter *iter;
RFlagItem *fi;
r_list_foreach (flags, iter, fi) {
r_cons_printf (" ; %s", fi->name);
}
}
return true;
}
static int ds_print_meta_infos(RDisasmState *ds, ut8* buf, int len, int idx) {
int ret = 0;
const char *infos, *metas;
char key[100];
RAnalMetaItem MI, *mi = &MI;
RCore * core = ds->core;
Sdb *s = core->anal->sdb_meta;
snprintf (key, sizeof (key)-1, "meta.0x%"PFMT64x, ds->at);
infos = sdb_const_get (s, key, 0);
ds->mi_found = false;
if (infos) {
for (;*infos; infos++) {
/* XXX wtf, must use anal.meta.deserialize() */
char *p, *q;
if (*infos == ',') {
continue;
}
snprintf (key, sizeof (key)-1, "meta.%c.0x%"PFMT64x, *infos, ds->at);
metas = sdb_const_get (s, key, 0);
MI.size = sdb_array_get_num (s, key, 0, 0);
MI.type = *infos;
MI.from = ds->at;
MI.to = ds->at + MI.size;
if (metas) {
p = strchr (metas, ',');
if (!p) {
continue;
}
MI.space = atoi (p + 1);
q = strchr (p + 1, ',');
if (!q) {
continue;
}
MI.str = (char*)sdb_decode (q + 1, 0);
} else {
MI.str = NULL;
}
// TODO: implement ranged meta find (if not at the begging of function..
char *out = NULL;
int hexlen;
int delta;
if (mi) {
switch (mi->type) {
case R_META_TYPE_STRING:
{
out = r_str_escape (mi->str);
r_cons_printf (" .string %s\"%s\"%s ; len=%"PFMT64d,
COLOR_CONST (ds, YELLOW), out, COLOR_RESET (ds),
mi->size);
free (out);
delta = ds->at - mi->from;
ds->oplen = mi->size - delta;
ds->asmop.size = (int)mi->size;
//i += mi->size-1; // wtf?
R_FREE (ds->line);
R_FREE (ds->refline);
R_FREE (ds->refline2);
ds->mi_found = true;
break;
}
case R_META_TYPE_HIDE:
r_cons_printf ("(%d bytes hidden)", mi->size);
ds->asmop.size = mi->size;
ds->oplen = mi->size;
ds->mi_found = true;
break;
case R_META_TYPE_RUN:
r_core_cmdf (core, "%s @ 0x%"PFMT64x, mi->str, ds->at);
ds->asmop.size = mi->size;
ds->oplen = mi->size;
ds->mi_found = true;
break;
case R_META_TYPE_DATA:
hexlen = len - idx;
delta = ds->at - mi->from;
if (mi->size < hexlen) {
hexlen = mi->size;
}
ds->oplen = mi->size - delta;
core->print->flags &= ~R_PRINT_FLAGS_HEADER;
if (!ds_print_data_type (ds, buf + idx, ds->hint? ds->hint->immbase: 0, mi->size)) {
r_cons_printf ("hex length=%" PFMT64d " delta=%d\n", mi->size , delta);
r_print_hexdump (core->print, ds->at, buf+idx, hexlen-delta, 16, 1, 1);
}
core->inc = 16; // ds->oplen; //
core->print->flags |= R_PRINT_FLAGS_HEADER;
ds->asmop.size = ret = (int)mi->size; //-delta;
R_FREE (ds->line);
R_FREE (ds->refline);
R_FREE (ds->refline2);
ds->mi_found = true;
break;
case R_META_TYPE_FORMAT:
r_cons_printf ("format %s {\n", mi->str);
r_print_format (core->print, ds->at, buf+idx, len-idx, mi->str, R_PRINT_MUSTSEE, NULL, NULL);
r_cons_printf ("} %d", mi->size);
ds->oplen = ds->asmop.size = ret = (int)mi->size;
R_FREE (ds->line);
R_FREE (ds->refline);
R_FREE (ds->refline2);
ds->mi_found = true;
break;
}
}
if (MI.str) {
free (MI.str);
MI.str = NULL;
}
}
}
return ret;
}
static void ds_instruction_mov_lea(RDisasmState *ds, int idx) {
RCore *core = ds->core;
RAnalValue *src;
char *nl = ds->show_comment_right ? "" : "\n";
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_LENGTH:
case R_ANAL_OP_TYPE_CAST:
case R_ANAL_OP_TYPE_CMOV:
case R_ANAL_OP_TYPE_MOV:
src = ds->analop.src[0];
if (src && src->memref>0 && src->reg) {
if (core->anal->reg) {
const char *pc = core->anal->reg->name[R_REG_NAME_PC];
RAnalValue *dst = ds->analop.dst;
if (dst && dst->reg && dst->reg->name) {
if (src->reg->name && pc && !strcmp (src->reg->name, pc)) {
RFlagItem *item;
ut8 b[8];
ut64 ptr = idx + ds->addr + src->delta + ds->analop.size;
ut64 off = 0LL;
r_core_read_at (core, ptr, b, src->memref);
off = r_mem_get_num (b, src->memref);
item = r_flag_get_i (core->flags, off);
//TODO: introduce env for this print?
r_cons_printf ("; MOV %s = [0x%"PFMT64x"] = 0x%"PFMT64x" %s\n",
dst->reg->name, ptr, off, item?item->name: "");
}
}
}
}
break;
// TODO: get from meta anal?
case R_ANAL_OP_TYPE_LEA:
src = ds->analop.src[0];
if (src && src->reg && core->anal->reg && *(core->anal->reg->name)) {
const char *pc = core->anal->reg->name[R_REG_NAME_PC];
RAnalValue *dst = ds->analop.dst;
if (dst && dst->reg && src->reg->name && pc && !strcmp (src->reg->name, pc)) {
int index = 0;
int memref = core->assembler->bits/8;
RFlagItem *item;
ut8 b[64];
ut64 ptr = index+ds->addr+src->delta+ds->analop.size;
ut64 off = 0LL;
r_core_read_at (core, ptr, b, sizeof (b)); //memref);
off = r_mem_get_num (b, memref);
item = r_flag_get_i (core->flags, off);
if (ds->show_leahints) {
char s[64];
r_str_ncpy (s, (const char *)b, sizeof (s));
ALIGN;
ds_comment (ds, true, "; LEA %s = [0x%"PFMT64x"] = 0x%"PFMT64x" \"%s\"%s",
dst->reg->name, ptr, off, item?item->name: s, nl);
}
}
}
}
}
static st64 revert_cdiv_magic(st64 magic) {
ut64 amagic = llabs (magic);
const st64 N = ST64_MAX;
st64 E, candidate;
short s;
if (amagic < 0xFFFFFF || amagic > UT32_MAX) {
return 0;
}
if (magic < 0) {
magic += 1LL << 32;
}
for (s = 0; s < 16; s++) {
E = 1LL << (32 + s);
candidate = (E + magic - 1) / magic;
if (candidate > 0) {
if ( ((N * magic) >> (32 + s)) == (N / candidate) ) {
return candidate;
}
}
}
return 0;
}
static void ds_cdiv_optimization(RDisasmState *ds) {
char *esil;
char *end, *comma;
st64 imm;
st64 divisor;
if (!ds->show_hints) {
return;
}
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_MOV:
case R_ANAL_OP_TYPE_MUL:
esil = R_STRBUF_SAFEGET (&ds->analop.esil);
while (esil) {
comma = strstr (esil, ",");
if (!comma) {
break;
}
imm = strtol (esil, &end, 10);
if (comma && comma == end) {
divisor = revert_cdiv_magic (imm);
if (divisor) {
r_cons_printf (" ; CDIV: %lld * 2^n", divisor);
break;
}
}
esil = comma + 1;
}
}
// /TODO: check following SHR instructions
}
static void ds_print_show_bytes(RDisasmState *ds) {
RCore* core = ds->core;
char *nstr, *str = NULL, pad[64];
char *flagstr = NULL;
int oldFlags = core->print->flags;
char extra[128];
int j, k;
if (!ds->show_bytes || ds->nb < 1) {
return;
}
if (!ds->show_color_bytes) {
core->print->flags &= ~R_PRINT_FLAGS_COLOR;
}
strcpy (extra, " ");
if (ds->show_flag_in_bytes) {
flagstr = r_flag_get_liststr (core->flags, ds->at);
}
if (flagstr) {
str = flagstr;
if (ds->nb > 0) {
k = ds->nb-strlen (flagstr) - 1;
if (k < 0 || k > sizeof(pad)) k = 0;
for (j = 0; j < k; j++) {
pad[j] = ' ';
}
pad[j] = '\0';
} else {
pad[0] = 0;
}
} else {
if (ds->show_flag_in_bytes) {
k = ds->nb - 1;
if (k < 0 || k > sizeof (pad)) {
k = 0;
}
for (j = 0; j < k; j++) {
pad[j] = ' ';
}
pad[j] = '\0';
str = strdup ("");
} else {
str = strdup (ds->asmop.buf_hex);
if (r_str_ansi_len (str) > ds->nb) {
char *p = (char *)r_str_ansi_chrn (str, ds->nb);
if (p) {
p[0] = '.';
p[1] = '\0';
}
}
ds->print->cur_enabled = (ds->cursor != -1);
nstr = r_print_hexpair (ds->print, str, ds->index);
if (ds->print->bytespace) {
k = (ds->nb + (ds->nb / 2)) - r_str_ansi_len (nstr) + 2;
} else {
k = ds->nb - r_str_ansi_len (nstr) + 1;
}
if (k > 0) {
// setting to sizeof screw up the disasm
if (k > sizeof (pad)) {
k = 18;
}
for (j = 0; j < k; j++) {
pad[j] = ' ';
}
pad[j] = 0;
if (ds->lbytes) {
// hack to align bytes left
strcpy (extra, pad);
*pad = 0;
}
} else {
pad[0] = 0;
}
free (str);
str = nstr;
}
}
r_cons_printf ("%s%s %s", pad, str, extra);
free (str);
core->print->flags = oldFlags;
}
static void ds_print_indent(RDisasmState *ds) {
if (ds->show_indent) {
char indent[128];
int num = ds->indent_level * ds->indent_space;
if (num < 0) {
num = 0;
}
if (num >= sizeof (indent)) {
num = sizeof (indent) - 1;
}
memset (indent, ' ', num);
indent[num] = 0;
r_cons_strcat (indent);
}
}
static void ds_print_opstr(RDisasmState *ds) {
ds_print_indent (ds);
r_cons_strcat (ds->opstr);
ds_print_color_reset (ds);
}
static void ds_print_color_reset(RDisasmState *ds) {
if (ds->show_color) {
r_cons_strcat (Color_RESET);
}
}
static int ds_print_middle(RDisasmState *ds, int ret) {
if (ds->middle != 0) {
ret -= ds->middle;
ds_align_comment (ds);
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
r_cons_printf (" ; *middle* %d", ret);
if (ds->show_color) {
r_cons_strcat (Color_RESET);
}
}
return ret;
}
static bool ds_print_labels(RDisasmState *ds, RAnalFunction *f) {
RCore *core = ds->core;
const char *label;
if (!f) {
f = r_anal_get_fcn_in (core->anal, ds->at, 0);
}
label = r_anal_fcn_label_at (core->anal, f, ds->at);
if (!label) {
return false;
}
if (ds->show_color) {
r_cons_strcat (ds->color_label);
r_cons_printf (" .%s:\n", label);
ds_print_color_reset (ds);
} else {
r_cons_printf (" .%s:\n", label);
}
return true;
}
static void ds_print_import_name(RDisasmState *ds) {
RListIter *iter = NULL;
RBinReloc *rel = NULL;
RCore * core = ds->core;
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_JMP:
case R_ANAL_OP_TYPE_CJMP:
case R_ANAL_OP_TYPE_CALL:
if (core->bin->cur->o->imports && core->bin->cur->o->relocs) {
r_list_foreach (core->bin->cur->o->relocs, iter, rel) {
if ((rel->vaddr == ds->analop.jump) &&
(rel->import != NULL)) {
if (ds->show_color) {
r_cons_strcat (ds->color_fname);
}
// TODO: handle somehow ordinals import
ds_align_comment (ds);
r_cons_printf (" ; (imp.%s)", rel->import->name);
ds_print_color_reset (ds);
}
}
}
}
}
static void ds_print_fcn_name(RDisasmState *ds) {
int delta;
const char *label;
char *nl = ds->show_comment_right ? "" : "\n";
RAnalFunction *f;
RCore *core = ds->core;
if (!ds->show_comments) {
return;
}
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_IO:
{
const int imm = (int)ds->analop.val;
RSyscall *sc = ds->core->anal->syscall;
const char *ioname = r_syscall_get_io (sc, imm);
if (ioname && *ioname) {
ALIGN;
ds_comment (ds, true, "; IO %s%s", ioname, nl);
ds->has_description = true;
}
}
break;
case R_ANAL_OP_TYPE_JMP:
case R_ANAL_OP_TYPE_CJMP:
case R_ANAL_OP_TYPE_CALL:
f = r_anal_get_fcn_in (core->anal, ds->analop.jump, R_ANAL_FCN_TYPE_NULL);
if (f && f->name && ds->opstr && !strstr (ds->opstr, f->name)) {
//beginline (core, ds, f);
// print label
delta = ds->analop.jump - f->addr;
label = r_anal_fcn_label_at (core->anal, f, ds->analop.jump);
if (label) {
ALIGN;
ds_comment (ds, true, "; %s.%s%s", f->name, label, nl);
} else {
RAnalFunction *f2 = r_anal_get_fcn_in (core->anal, ds->at, 0);
if (f != f2) {
ALIGN;
if (delta > 0) {
ds_comment (ds, true, "; %s+0x%x%s", f->name, delta, nl);
} else if (delta < 0) {
ds_comment (ds, true, "; %s-0x%x%s", f->name, -delta, nl);
} else {
ds_comment (ds, true, "; %s%s", f->name, nl);
}
}
}
}
break;
}
}
static void ds_print_core_vmode(RDisasmState *ds) {
char *shortcut = NULL;
RCore *core = ds->core;
if (!ds->show_jmphints) {
return;
}
if (core->vmode) {
switch (ds->analop.type) { // & R_ANAL_OP_TYPE_MASK) {
case R_ANAL_OP_TYPE_LEA:
if (ds->show_leahints) {
ds_align_comment (ds);
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
shortcut = r_core_add_asmqjmp (core, ds->analop.ptr);
if (shortcut) {
r_cons_printf (";[%s]", shortcut);
free (shortcut);
} else {
r_cons_strcat (";[?]");
}
if (ds->show_color) r_cons_strcat (Color_RESET);
}
break;
case R_ANAL_OP_TYPE_UCALL:
case R_ANAL_OP_TYPE_UCALL | R_ANAL_OP_TYPE_REG | R_ANAL_OP_TYPE_IND:
case R_ANAL_OP_TYPE_UCALL | R_ANAL_OP_TYPE_IND:
ds_align_comment (ds);
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
shortcut = r_core_add_asmqjmp (core, ds->analop.ptr);
if (shortcut) {
if (core->is_asmqjmps_letter) {
r_cons_printf (";[g%s]", shortcut);
} else {
r_cons_printf (";[%s]", shortcut);
}
free (shortcut);
} else {
r_cons_strcat (";[?]");
}
if (ds->show_color) {
r_cons_strcat (Color_RESET);
}
break;
case R_ANAL_OP_TYPE_RCALL:
break;
case R_ANAL_OP_TYPE_JMP:
case R_ANAL_OP_TYPE_CJMP:
case R_ANAL_OP_TYPE_CALL:
case R_ANAL_OP_TYPE_COND | R_ANAL_OP_TYPE_CALL:
ds_align_comment (ds);
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
shortcut = r_core_add_asmqjmp (core, ds->analop.jump);
if (shortcut) {
if (core->is_asmqjmps_letter) {
r_cons_printf (";[g%s]", shortcut);
} else {
r_cons_printf (";[%s]", shortcut);
}
free (shortcut);
} else {
r_cons_strcat (";[?]");
}
if (ds->show_color) {
r_cons_strcat (Color_RESET);
}
break;
}
}
}
// align for comment
static void ds_align_comment(RDisasmState *ds) {
if (ds->show_comment_right_default) {
const int cmtcol = ds->cmtcol - 1;
int cstrlen = 0;
char *ll = r_cons_lastline (&cstrlen);
if (ll) {
int cols, ansilen = r_str_ansi_len (ll);
int utf8len = r_utf8_strlen ((const ut8*)ll);
int cells = utf8len - (cstrlen - ansilen);
if (cstrlen < 20) {
ds_print_pre (ds);
}
cols = ds->interactive ? ds->core->cons->columns : 1024;
if (cells < cmtcol) {
int len = cmtcol - cells;
if (len < cols && len > 0) {
r_cons_memset (' ', len);
}
}
r_cons_print (" ");
}
}
}
static void ds_print_dwarf(RDisasmState *ds) {
if (ds->show_dwarf) {
int len = ds->opstr? strlen (ds->opstr): 0;
if (len < 30) {
len = 30 - len;
}
// TODO: cache value in ds
int dwarfFile = (int)ds->dwarfFile + (int)ds->dwarfAbspath;
free (ds->sl);
ds->sl = r_bin_addr2text (ds->core->bin, ds->at, dwarfFile);
if (ds->sl) {
if ((!ds->osl || (ds->osl && strcmp (ds->sl, ds->osl)))) {
char *chopstr, *line = strdup (ds->sl);
if (!line) {
return;
}
r_str_replace_char (line, '\t', ' ');
r_str_replace_char (line, '\x1b', ' ');
r_str_replace_char (line, '\r', ' ');
r_str_replace_char (line, '\n', '\x00');
chopstr = r_str_chop (line);
if (!*chopstr) {
free (line);
return;
}
// handle_set_pre (ds, " ");
ds_align_comment (ds);
if (ds->show_color) {
r_cons_printf ("%s; %s"Color_RESET, ds->pal_comment, chopstr);
} else {
r_cons_printf ("; %s", chopstr);
}
free (ds->osl);
ds->osl = ds->sl;
ds->sl = NULL;
free (line);
}
}
}
}
static void ds_print_asmop_payload(RDisasmState *ds, const ut8 *buf) {
if (ds->show_varxs) {
// XXX asume analop is filled
//r_anal_op (core->anal, &ds->analop, ds->at, core->block+i, core->blocksize-i);
int v = ds->analop.ptr;
switch (ds->analop.stackop) {
case R_ANAL_STACK_GET:
if (v < 0) {
r_cons_printf (" ; local.get %d", -v);
} else {
r_cons_printf (" ; arg.get %d", v);
}
break;
case R_ANAL_STACK_SET:
if (v < 0) {
r_cons_printf (" ; local.set %d", -v);
} else {
r_cons_printf (" ; arg.set %d", v);
}
break;
}
}
if (ds->asmop.payload != 0) {
r_cons_printf ("\n; .. payload of %d bytes", ds->asmop.payload);
if (ds->showpayloads) {
int mod = ds->asmop.payload % ds->core->assembler->dataalign;
int x;
for (x = 0; x < ds->asmop.payload; ++x) {
r_cons_printf ("\n 0x%02x", buf[ds->oplen + x]);
}
for (x = 0; x < mod; ++x) {
r_cons_printf ("\n 0x%02x ; alignment", buf[ds->oplen + ds->asmop.payload + x]);
}
}
}
}
static void ds_print_str(RDisasmState *ds, const char *str, int len) {
const char *nl = ds->show_comment_right ? "" : "\n";
if (!strcmp (ds->strenc, "latin1")) {
char *escstr = r_str_escape_latin1 (str);
if (escstr) {
ALIGN;
ds_comment (ds, true, "; \"%s\"%s", escstr, nl);
free (escstr);
}
} else if (!strcmp (ds->strenc, "utf8")) {
char *escstr = r_str_escape_utf8 (str);
if (escstr) {
ALIGN;
ds_comment (ds, true, "; \"%s\"%s", escstr, nl);
free (escstr);
}
} else if (strlen (str) == 1) {
// could be a wide string
int i = 0;
ALIGN;
ds_comment (ds, true, "; %s\"", len > 2 && str[i+2] ? "u" : "");
for (i = 0; i < len; i+=2) {
if (!str[i]) {
break;
}
if (!str[i+1]) {
if (IS_PRINTABLE (str[i])
&& str[i] != '"' && str[i] != '\\') {
ds_comment (ds, false, "%c", str[i]);
} else {
char *escchar = r_str_escape_latin1 (&str[i]);
if (escchar) {
ds_comment (ds, false, "%s", escchar);
free (escchar);
}
}
} else {
ds_comment (ds, false, "\\u%02x%02x", (ut8)str[i+1], (ut8)str[i]);
}
}
ds_comment (ds, false, "\"%s", nl);
} else {
char *escstr = r_str_escape_latin1 (str);
if (escstr) {
ALIGN;
ds_comment (ds, true, "; \"%s\"%s", escstr, nl);
free (escstr);
}
}
}
static inline bool is_filtered_flag(RDisasmState *ds, const char *name) {
if (ds->show_noisy_comments || strncmp (name, "str.", 4)) {
return false;
}
ut64 refaddr = ds->analop.ptr;
char *anal_flag = r_meta_get_string (ds->core->anal, R_META_TYPE_STRING, refaddr);
if (anal_flag) {
anal_flag = strdup (anal_flag);
if (anal_flag) {
r_name_filter (anal_flag, -1);
if (!strcmp (&name[4], anal_flag)) {
free (anal_flag);
return true;
}
free (anal_flag);
}
}
return false;
}
/* convert numeric value in opcode to ascii char or number */
static void ds_print_ptr(RDisasmState *ds, int len, int idx) {
RCore *core = ds->core;
ut64 p = ds->analop.ptr;
ut64 v = ds->analop.val;
ut64 refaddr = p;
RFlagItem *f;
char *nl = ds->show_comment_right? "" : "\n";
if (!ds->show_comments || !ds->show_slow) {
return;
}
if (((char)v > 0) && v >= '!' && v <= '~') {
char ch = v;
ALIGN;
ds_comment (ds, true, "; '%c'%s", ch, nl);
}
RList *list = NULL;
RListIter *iter;
RAnalRef *ref;
list = r_anal_refs_get (core->anal, ds->at);
r_list_foreach (list, iter, ref) {
if (ref->type == R_ANAL_REF_TYPE_STRING || ref->type == R_ANAL_REF_TYPE_DATA) {
if ((f = r_flag_get_i (core->flags, ref->addr))) {
refaddr = ref->addr;
break;
}
}
}
bool flag_printed = false;
bool refaddr_printed = false;
bool string_printed = false;
if (p == UT64_MAX) {
/* do nothing */
} else if (((st64)p) > 0 || ((st64)refaddr) > 0) {
const char *kind;
char *msg = calloc (sizeof (char), len);
if (((st64)p) > 0) {
f = r_flag_get_i (core->flags, p);
if (f) {
refaddr = p;
if (!flag_printed && !is_filtered_flag (ds, f->name)
&& (!ds->opstr || !strstr (ds->opstr, f->name))) {
ALIGN;
ds_comment (ds, true, "; %s%s", f->name, nl);
flag_printed = true;
}
}
}
r_io_read_at (core->io, refaddr, (ut8*)msg, len - 1);
if (ds->analop.refptr) {
ut64 num = r_read_ble (msg, core->print->big_endian, ds->analop.refptr * 8);
st64 n = (st64)num;
st32 n32 = (st32)(n & UT32_MAX);
if (ds->analop.type == R_ANAL_OP_TYPE_LEA) {
char str[128] = {0};
f = r_flag_get_i (core->flags, refaddr);
if (!f && ds->show_slow) {
r_io_read_at (ds->core->io, ds->analop.ptr,
(ut8*)str, sizeof (str) - 1);
str[sizeof (str) - 1] = 0;
if (!string_printed && str[0] && r_str_is_printable_incl_newlines (str)) {
ds_print_str (ds, str, sizeof (str));
string_printed = true;
}
}
} else {
f = NULL;
if (n == UT32_MAX || n == UT64_MAX) {
ALIGN;
ds_comment (ds, true, "; [0x%" PFMT64x":%d]=-1%s",
refaddr, ds->analop.refptr, nl);
} else if (n == n32 && (n32 > -512 && n32 < 512)) {
ALIGN;
ds_comment (ds, true, "; [0x%" PFMT64x
":%d]=%"PFMT64d"%s", refaddr, ds->analop.refptr, n, nl);
} else {
const char *kind, *flag = "";
char *msg2 = NULL;
f = r_flag_get_i (core->flags, n);
if (f) {
flag = f->name;
} else {
msg2 = calloc (sizeof (char), len);
r_io_read_at (core->io, n, (ut8*)msg2, len - 1);
msg2[len-1] = 0;
kind = r_anal_data_kind (core->anal, refaddr, (const ut8*)msg2, len - 1);
if (kind && !strcmp (kind, "text")) {
r_str_filter (msg2, 0);
if (*msg2) {
char *lala = r_str_newf ("\"%s\"", msg2);
free (msg2);
flag = msg2 = lala;
}
}
}
ALIGN;
{
const char *refptrstr = "";
if (core->print->flags & R_PRINT_FLAGS_SECSUB) {
RIOSection *s = core->print->iob.section_vget (core->print->iob.io, n);
if (s) {
refptrstr = s->name;
}
}
ds_comment (ds, true, "; [0x%" PFMT64x":%d]=%s%s0x%" PFMT64x "%s%s%s",
refaddr, ds->analop.refptr, refptrstr, *refptrstr?".":"",
n, (flag && *flag) ? " " : "", flag, nl);
}
free (msg2);
}
refaddr_printed = true;
}
}
if (!strcmp (ds->show_cmtoff, "true")) {
ALIGN;
ds_comment (ds, true, "; 0x%" PFMT64x "%s", refaddr, nl);
refaddr_printed = true;
} else if (!refaddr_printed && strcmp (ds->show_cmtoff, "false")) {
char addrstr[sizeof (refaddr) * 2 + 3];
snprintf (addrstr, sizeof (addrstr), "0x%" PFMT64x, refaddr);
if (!ds->opstr || !strstr (ds->opstr, addrstr)) {
snprintf (addrstr, sizeof (addrstr), "0x%08" PFMT64x, refaddr);
if (!ds->opstr || !strstr (ds->opstr, addrstr)) {
bool print_refaddr = true;
if (refaddr < 10) {
snprintf (addrstr, sizeof (addrstr), "%" PFMT64u, refaddr);
if (ds->opstr && strstr (ds->opstr, addrstr)) {
print_refaddr = false;
}
}
if (print_refaddr) {
ALIGN;
ds_comment (ds, true, "; 0x%" PFMT64x "%s", refaddr, nl);
refaddr_printed = true;
}
}
}
}
#if 1
if (!(IS_PRINTABLE (*msg) || ISWHITECHAR (*msg))) {
*msg = 0;
} else {
msg[len - 1] = 0;
}
#endif
f = r_flag_get_i (core->flags, refaddr);
if (f) {
if (strlen (msg) != 1) {
char *msg2 = r_str_new (msg);
if (msg2) {
r_str_filter (msg2, 0);
if (!strncmp (msg2, "UH..", 4)) {
*msg = 0;
}
free (msg2);
}
}
if (*msg) {
if (!string_printed) {
ds_print_str (ds, msg, len);
string_printed = true;
}
} else if (!flag_printed && (!ds->opstr || !strstr (ds->opstr, f->name))) {
ALIGN;
ds_comment (ds, true, "; %s%s", f->name, nl);
flag_printed = true;
}
} else {
if (refaddr == UT64_MAX || refaddr == UT32_MAX) {
ALIGN;
ds_comment (ds, true, "; -1%s", nl);
} else if (((char)refaddr > 0) && refaddr >= '!' && refaddr <= '~') {
char ch = refaddr;
ALIGN;
ds_comment (ds, true, "; '%c'%s", ch, nl);
} else if (refaddr > 10) {
if ((st64)refaddr < 0) {
// resolve local var if possible
RAnalVar *v = r_anal_var_get (core->anal, ds->at, 'v', 1, (int)refaddr);
ALIGN;
if (v) {
ds_comment (ds, true, "; var %s%s", v->name, nl);
r_anal_var_free (v);
} else {
ds_comment (ds, true, "; var %d%s", (int)-refaddr, nl);
}
} else {
if (r_core_anal_address (core, refaddr) & R_ANAL_ADDR_TYPE_ASCII) {
if (!string_printed && *msg) {
ds_print_str (ds, msg, len);
string_printed = true;
}
}
}
}
//XXX this should be refactored with along the above
kind = r_anal_data_kind (core->anal, refaddr, (const ut8*)msg, len - 1);
if (kind) {
if (!strcmp (kind, "text")) {
if (!string_printed && *msg) {
ds_print_str (ds, msg, len);
string_printed = true;
}
} else if (!strcmp (kind, "invalid")) {
int *n = (int*)&refaddr;
ut64 p = ds->analop.val;
if (p == UT64_MAX || p == UT32_MAX) {
p = ds->analop.ptr;
}
/* avoid double ; -1 */
if (p != UT64_MAX && p != UT32_MAX) {
if (*n > -0xfff && *n < 0xfff) {
ALIGN;
ds_comment (ds, true, "; %"PFMT64d"%s", p, nl);
}
}
} else {
// r_cons_printf (" ; %s", kind);
}
// TODO: check for more data kinds
}
}
free (msg);
} else {
ds_print_as_string (ds);
}
#if DEADCODE
if (aligned && ds->show_color) {
r_cons_printf (Color_RESET);
}
#endif
}
// TODO: Use sdb in rbin to accelerate this
// we shuold use aligned reloc addresses instead of iterating all of them
static RBinReloc *getreloc(RCore *core, ut64 addr, int size) {
RList *list;
RBinReloc *r;
RListIter *iter;
if (size < 1 || addr == UT64_MAX) {
return NULL;
}
list = r_bin_get_relocs (core->bin);
r_list_foreach (list, iter, r) {
if ((r->vaddr >= addr) && (r->vaddr < (addr + size))) {
return r;
}
}
return NULL;
}
static void ds_print_relocs(RDisasmState *ds) {
if (!ds->showrelocs || !ds->show_slow) {
return;
}
RCore *core = ds->core;
RBinReloc *rel = getreloc (core, ds->at, ds->analop.size);
if (rel) {
const int cmtcol = ds->cmtcol;
int cstrlen = 0;
char *ll = r_cons_lastline (&cstrlen);
int ansilen = r_str_ansi_len (ll);
int utf8len = r_utf8_strlen ((const ut8*)ll);
int cells = utf8len - (cstrlen - ansilen);
int len = cmtcol - cells;
r_cons_memset (' ', len);
if (rel->import) {
r_cons_printf (" ; RELOC %d %s", rel->type, rel->import->name);
} else if (rel->symbol) {
r_cons_printf (" ; RELOC %d %s", rel->type, rel->symbol->name);
} else {
r_cons_printf (" ; RELOC %d ", rel->type);
}
}
}
static int mymemwrite0(RAnalEsil *esil, ut64 addr, const ut8 *buf, int len) {
return 0;
}
static int mymemwrite1(RAnalEsil *esil, ut64 addr, const ut8 *buf, int len) {
return 1;
}
static int myregwrite(RAnalEsil *esil, const char *name, ut64 *val) {
char str[64], *msg = NULL;
ut32 *n32 = (ut32*)str;
RDisasmState *ds = NULL;
if (!esil) {
return 0;
}
ds = esil->user;
if (ds) {
ds->esil_likely = true;
if (!ds->show_slow) {
return 0;
}
}
memset (str, 0, sizeof (str));
if (*val) {
(void)r_io_read_at (esil->anal->iob.io, *val, (ut8*)str, sizeof (str)-1);
str[sizeof (str)-1] = 0;
if (*str && r_str_is_printable (str)) {
// do nothing
msg = r_str_newf ("\"%s\" ", str);
} else {
str[0] = 0;
if (!*n32) {
// msg = strdup ("NULL");
} else if (*n32 == UT32_MAX) {
/* nothing */
} else {
if (ds && !ds->show_emu_str) {
msg = r_str_newf ("-> 0x%x ", *n32);
}
}
}
RFlagItem *fi = r_flag_get_i (esil->anal->flb.f, *val);
if (fi) {
msg = r_str_appendf (msg, "%s", fi->name);
}
}
if (ds) {
if (ds->show_emu_str) {
if (msg && *msg) {
ds_comment_esil (ds, true, false, "; %s", msg);
if (ds->show_comments && !ds->show_comment_right) {
r_cons_newline ();
}
}
} else {
ds_comment_esil (ds, true, false, "; %s=0x%"PFMT64x" %s", name, *val,
msg ? msg : "");
if (ds->show_comments && !ds->show_comment_right) {
r_cons_newline ();
}
}
}
free (msg);
return 0;
}
static void ds_print_esil_anal_init(RDisasmState *ds) {
RCore *core = ds->core;
const char *pc = r_reg_get_name (core->anal->reg, R_REG_NAME_PC);
ds->esil_old_pc = r_reg_getv (core->anal->reg, pc);
if (!ds->esil_old_pc || ds->esil_old_pc == UT64_MAX) {
ds->esil_old_pc = core->offset;
}
if (!ds->show_emu) {
return;
}
if (!core->anal->esil) {
int iotrap = r_config_get_i (core->config, "esil.iotrap");
int esd = r_config_get_i (core->config, "esil.stack.depth");
if (!(core->anal->esil = r_anal_esil_new (esd, iotrap))) {
R_FREE (ds->esil_regstate);
return;
}
r_anal_esil_setup (core->anal->esil, core->anal, 0, 0, 1);
}
core->anal->esil->user = ds;
free (ds->esil_regstate);
R_FREE (core->anal->last_disasm_reg);
if (core->anal->gp) {
r_reg_setv (core->anal->reg, "gp", core->anal->gp);
}
ds->esil_regstate = r_reg_arena_peek (core->anal->reg);
}
static void ds_print_esil_anal_fini(RDisasmState *ds) {
RCore *core = ds->core;
if (ds->show_emu && ds->esil_regstate) {
RCore* core = ds->core;
core->anal->last_disasm_reg = r_reg_arena_peek (core->anal->reg);
const char *pc = r_reg_get_name (core->anal->reg, R_REG_NAME_PC);
r_reg_arena_poke (core->anal->reg, ds->esil_regstate);
r_reg_setv (core->anal->reg, pc, ds->esil_old_pc);
R_FREE (ds->esil_regstate);
}
if (core && core->anal && core->anal->esil) {
//make sure to remove reference to ds to avoid UAF
core->anal->esil->user = NULL;
}
}
static void ds_print_bbline(RDisasmState *ds, bool force) {
if (ds->show_bbline && (force || (ds->fcn && r_anal_fcn_bbget (ds->fcn, ds->at)))) {
ds_setup_print_pre (ds, false, false);
ds_update_ref_lines (ds);
if (!ds->linesright && ds->show_lines && ds->line) {
r_cons_printf ("%s%s%s", COLOR (ds, color_flow),
ds->refline2, COLOR_RESET (ds));
}
r_cons_printf ("\n");
}
}
static void get_fcn_args_info(RAnal *anal, const char *fcn_name, int arg_num, const char * cc, const char **name,
char **orig_c_type, char **c_type, const char **fmt, ut64 *size, const char **source) {
*name = r_anal_type_func_args_name (anal, fcn_name, arg_num);
*orig_c_type = r_anal_type_func_args_type (anal, fcn_name, arg_num);
if (!strncmp ("const ", *orig_c_type, 6)) {
*c_type = *orig_c_type+6;
} else {
*c_type = *orig_c_type;
}
const char *query = sdb_fmt (-1, "type.%s", *c_type);
*fmt = sdb_const_get (anal->sdb_types, query, 0);
const char *t_query = sdb_fmt (-1, "type.%s.size", *c_type);
*size = sdb_num_get (anal->sdb_types, t_query, 0) / 8;
*source = r_anal_cc_arg (anal, cc, arg_num+1);
}
static void print_fcn_arg(RCore *core, const char *type, const char *name,
const char *fmt, const ut64 addr,
const int on_stack) {
//r_cons_newline ();
r_cons_printf ("%s", type);
r_core_cmdf (core, "pf %s%s %s @ 0x%08" PFMT64x,
(on_stack == 1) ? "*" : "", fmt, name, addr);
r_cons_chop ();
r_cons_chop ();
}
static void delete_last_comment(RDisasmState *ds) {
if (ds->show_comment_right_default) {
int len = 0;
char *ll = r_cons_lastline (&len);
if (ll) {
const char *begin = r_str_nstr (ll, "; ", len);
if (begin) {
// const int cstrlen = begin + len - ll;
// r_cons_drop (cstrlen - (int)(begin - ll));
r_cons_newline();
}
}
}
}
static char * resolve_fcn_name(RAnal *anal, const char * func_name) {
const char * name = NULL;
const char * str = func_name;
if (r_anal_type_func_exist (anal, func_name)) {
return strdup (func_name);
}
name = func_name;
while ((str = strchr (str, '.'))) {
name = str + 1;
str++;
}
if (r_anal_type_func_exist (anal, name)) {
return strdup (name);
}
return r_anal_type_func_guess (anal, (char*)func_name);
}
static bool can_emulate_metadata(RCore * core, ut64 at) {
const char *infos;
const char *emuskipmeta = r_config_get (core->config, "asm.emuskip");
char key[32];
Sdb *s = core->anal->sdb_meta;
snprintf (key, sizeof (key)-1, "meta.0x%"PFMT64x, at);
infos = sdb_const_get (s, key, 0);
if (!infos) {
/* no metadata: let's emulate this */
return true;
}
for (; *infos; infos++) {
/*
* don't emulate if at least one metadata type
* can't be emulated
*/
if (*infos != ',' && strchr(emuskipmeta, *infos)) {
return false;
}
}
return true;
}
// modifies anal register state
static void ds_print_esil_anal(RDisasmState *ds) {
RCore *core = ds->core;
RAnalEsil *esil = core->anal->esil;
const char *pc;
int (*hook_mem_write)(RAnalEsil *esil, ut64 addr, const ut8 *buf, int len) = NULL;
int i, nargs;
ut64 at = p2v (ds, ds->at);
RConfigHold *hc = r_config_hold_new (core->config);
if (!esil) {
ds_print_esil_anal_init (ds);
esil = core->anal->esil;
}
if (!ds->show_emu) {
goto beach;
}
if (!can_emulate_metadata (core, at)) {
goto beach;
}
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
ds_align_comment (ds);
esil = core->anal->esil;
pc = r_reg_get_name (core->anal->reg, R_REG_NAME_PC);
r_reg_setv (core->anal->reg, pc, at + ds->analop.size);
esil->cb.user = ds;
esil->cb.hook_reg_write = myregwrite;
hook_mem_write = esil->cb.hook_mem_write;
if (ds->show_emu_write) {
esil->cb.hook_mem_write = mymemwrite0;
} else {
esil->cb.hook_mem_write = mymemwrite1;
}
ds->esil_likely = 0;
r_anal_esil_set_pc (esil, at);
r_anal_esil_parse (esil, R_STRBUF_SAFEGET (&ds->analop.esil));
r_anal_esil_stack_free (esil);
hc = r_config_hold_new (core->config);
if (!hc) {
if (hook_mem_write) {
esil->cb.hook_mem_write = hook_mem_write;
}
return;
}
r_config_save_num (hc, "io.cache", NULL);
r_config_set (core->config, "io.cache", "true");
if (!ds->show_comments) {
goto beach;
}
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_SWI: {
char *s = cmd_syscall_dostr (core, -1);
if (s) {
// XXX this should be shown in ds_comment_esil, for some reason it doesnt
r_cons_printf ("; ");
ds_comment_esil (ds, true, "; %s", s);
free (s);
}
} break;
case R_ANAL_OP_TYPE_CJMP:
ds_comment_esil (ds, true, true, ds->esil_likely? "; likely" : "; unlikely");
break;
case R_ANAL_OP_TYPE_UCALL:
case R_ANAL_OP_TYPE_ICALL:
case R_ANAL_OP_TYPE_RCALL:
case R_ANAL_OP_TYPE_IRCALL:
case R_ANAL_OP_TYPE_CALL:
{
RAnalFunction *fcn;
const char *fcn_name = NULL;
ut64 pcv = ds->analop.jump;
if (pcv == UT64_MAX) {
pcv = ds->analop.ptr; // call [reloc-addr] // windows style
if (pcv == UT64_MAX || !pcv) {
r_anal_esil_reg_read (esil, "$jt", &pcv, NULL);
if (pcv == UT64_MAX || !pcv) {
pcv = r_reg_getv (core->anal->reg, pc);
}
}
}
fcn = r_anal_get_fcn_at (core->anal, pcv, 0);
if (fcn) {
fcn_name = fcn->name;
} else {
RFlagItem *item = r_flag_get_i (core->flags, pcv);
if (item) {
fcn_name = item->name;
}
}
if (fcn_name) {
char * key = resolve_fcn_name (core->anal, fcn_name);
if (key) {
const char *sp = r_reg_get_name (core->anal->reg, R_REG_NAME_SP);
const char *fcn_type = r_anal_type_func_ret (core->anal, key);
const char * cc;
nargs = r_anal_type_func_args_count (core->anal, key);
// HACK: remove other comments
delete_last_comment (ds);
if (ds->show_color) {
ds_comment_esil (ds, true, false, ds->pal_comment);
}
ds_align_comment (ds);
ds_comment_esil (ds, ds->show_color? false : true, false,
"; %s%s%s(", r_str_get (fcn_type), (fcn_type && *fcn_type &&
fcn_type[strlen (fcn_type) - 1] == '*') ? "" : " ",
r_str_get (key));
if (!nargs) {
ds_comment_esil (ds, false, true, "void)");
break;
}
cc = r_anal_type_func_cc (core->anal, key);
if (!cc) {
// unsupported calling convention
break;
}
ut64 spv = r_reg_getv (core->anal->reg, sp);
ut64 s_width = (core->anal->bits == 64)? 8: 4;
spv += s_width;
ut64 arg_addr = UT64_MAX;
//this should be taken out on its own function
for (i = 0; i < nargs; i++) {
const char *arg_name, *fmt, *cc_source;
char *arg_orig_c_type, *arg_c_type;
ut64 arg_size;
int on_stack = 0, warning = 0;
get_fcn_args_info (core->anal, key, i, cc, &arg_name,
&arg_orig_c_type, &arg_c_type, &fmt,
&arg_size, &cc_source);
if (!strcmp (cc_source, "stack_rev")) {
int j;
free (arg_orig_c_type);
on_stack = 1;
for (j = nargs - 1; j >= i; j--) {
warning = 0;
get_fcn_args_info (core->anal, key, j, cc,
&arg_name, &arg_orig_c_type, &arg_c_type,
&fmt, &arg_size, &cc_source);
arg_addr = spv;
if (!arg_size) {
ds_comment_esil (ds, false, "%s: unk_size", arg_c_type);
warning = 1;
arg_size = s_width;
}
spv += arg_size;
if (!fmt) {
if (!warning) {
ds_comment_esil (ds, false, false, "%s : unk_format", arg_c_type);
} else {
ds_comment_esil (ds, false, false, "_format");
}
ds_comment_esil (ds, false, false, j!=i?", ":")");
free (arg_orig_c_type);
continue;
}
if (fmt) {
//print_fcn_arg may need ds_comment_esil
print_fcn_arg (core, arg_orig_c_type,
arg_name, fmt, arg_addr, on_stack);
ds_comment_esil (ds, false, false, j!=i?", ":")");
}
free (arg_orig_c_type);
}
break;
}
if (!strncmp (cc_source, "stack", 5)) {
arg_addr = spv;
if (!arg_size) {
ds_comment_esil (ds, false, false, "%s: unk_size", arg_c_type);
warning = 1;
arg_size = s_width;
}
spv += arg_size;
on_stack = 1;
} else {
arg_addr = r_reg_getv (core->anal->reg, cc_source);
}
if (!fmt) {
if (!warning) {
ds_comment_esil (ds, false, false, "%s : unk_format", arg_c_type);
} else {
ds_comment_esil (ds, false, false, "_format");
}
ds_comment_esil (ds, false, false, i!=(nargs-1)?", ":")");
free (arg_orig_c_type);
continue;
}
if (fmt) {
//it may need ds_comment_esil
print_fcn_arg (core, arg_orig_c_type, arg_name,
fmt, arg_addr, on_stack);
ds_comment_esil (ds, false, false, i!=(nargs - 1)?", ":")");
}
free (arg_orig_c_type);
}
ds_comment_esil (ds, false, true, "");
free (key);
} else {
// function not in sdb
goto callfallback;
}
} else {
// function name not resolved
callfallback:
nargs = DEFAULT_NARGS;
if (fcn) {
nargs = fcn->nargs;
}
if (nargs > 0) {
ds_comment_esil (ds, true, false, "; CALL: ");
for (i = 0; i < nargs; i++) {
ut64 v = r_debug_arg_get (core->dbg, R_ANAL_CC_TYPE_STDCALL, i);
ds_comment_esil (ds, false, false, "%s0x%"PFMT64x, i?", ":"", v);
}
ds_comment_esil (ds, false, true, "");
}
}
}
break;
}
beach:
if (esil) {
esil->cb.hook_mem_write = hook_mem_write;
}
r_config_restore (hc);
r_config_hold_free (hc);
}
static void ds_print_calls_hints(RDisasmState *ds) {
int emu = r_config_get_i (ds->core->config, "asm.emu");
int emuwrite = r_config_get_i (ds->core->config, "asm.emuwrite");
if (emu && emuwrite) {
// this is done by ESIL
return;
}
RAnal *anal = ds->core->anal;
RAnalFunction *fcn = r_anal_get_fcn_in (anal, ds->analop.jump, -1);
char *name;
if (!fcn) {
return;
}
if (r_anal_type_func_exist (anal, fcn->name)) {
name = strdup (fcn->name);
} else if (!(name = r_anal_type_func_guess (anal, fcn->name))) {
return;
}
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
ds_align_comment (ds);
const char *fcn_type = r_anal_type_func_ret (anal, name);
if (fcn_type && *fcn_type) {
r_cons_printf (
"; %s%s%s(", fcn_type,
fcn_type[strlen (fcn_type) - 1] == '*' ? "" : " ",
name);
}
int i, arg_max = r_anal_type_func_args_count (anal, name);
if (!arg_max) {
r_cons_printf ("void)");
} else {
for (i = 0; i < arg_max; i++) {
char *type = r_anal_type_func_args_type (anal, name, i);
if (type && *type) {
r_cons_printf ("%s%s%s%s%s", i == 0 ? "": " ", type,
type[strlen (type) -1] == '*' ? "": " ",
r_anal_type_func_args_name (anal, name, i),
i == arg_max - 1 ? ")": ",");
}
free (type);
}
}
free (name);
}
static void ds_print_comments_right(RDisasmState *ds) {
char *desc = NULL;
RCore *core = ds->core;
ds_print_relocs (ds);
if (ds->asm_describe && !ds->has_description) {
char *op, *locase = strdup (ds->asmop.buf_asm);
if (!locase) {
return;
}
op = strchr (locase, ' ');
if (op) {
*op = 0;
}
r_str_case (locase, 0);
desc = r_asm_describe (core->assembler, locase);
free (locase);
}
if (ds->show_comments) {
if (desc && *desc) {
ds_align_comment (ds);
if (ds->show_color) {
r_cons_strcat (ds->color_comment);
}
r_cons_strcat ("; ");
r_cons_strcat (desc);
}
if (ds->show_comment_right && ds->comment) {
char *comment = r_str_chop (ds->comment);
if (*comment) {
if (!desc) {
ds_align_comment (ds);
}
if (ds->show_color) {
r_cons_strcat (ds->color_comment);
}
r_cons_printf ("; %s", comment);
}
// r_cons_strcat_justify (comment, strlen (ds->refline) + 5, ';');
if (ds->show_color) {
ds_print_color_reset (ds);
}
R_FREE (ds->comment);
}
}
free (desc);
if (ds->analop.type == R_ANAL_OP_TYPE_CALL && ds->show_calls) {
ds_print_calls_hints (ds);
}
}
static void ds_print_as_string(RDisasmState *ds) {
char *str = r_num_as_string (NULL, ds->analop.ptr, true);
if (str) {
ds_comment (ds, false, "%s; \"%s\"%s", COLOR (ds, pal_comment),
str, COLOR_RESET (ds));
}
free (str);
}
// int l is for lines
R_API int r_core_print_disasm(RPrint *p, RCore *core, ut64 addr, ut8 *buf, int len, int l, int invbreak, int cbytes) {
int continueoninvbreak = (len == l) && invbreak;
RAnalFunction *of = NULL;
RAnalFunction *f = NULL;
int ret, i, inc, skip_bytes = 0, idx = 0;
int dorepeat = 1;
ut8 *nbuf = NULL;
RDisasmState *ds;
// TODO: All those ds must be print flags
ds = ds_init (core);
ds->cbytes = cbytes;
ds->print = p;
ds->l = l;
ds->buf = buf;
ds->len = len;
ds->addr = addr;
ds->hint = NULL;
//r_cons_printf ("len =%d l=%d ib=%d limit=%d\n", len, l, invbreak, p->limit);
// TODO: import values from debugger is possible
// TODO: allow to get those register snapshots from traces
// TODO: per-function register state trace
// XXX - is there a better way to reset a the analysis counter so that
// when code is disassembled, it can actually find the correct offsets
{ /* used by asm.emu */
r_reg_arena_push (core->anal->reg);
}
if (core->anal->cur && core->anal->cur->reset_counter) {
core->anal->cur->reset_counter (core->anal, addr);
}
ds_reflines_init (ds);
core->inc = 0;
/* reset jmp table if not asked to keep it */
if (!core->keep_asmqjmps) { // hack
core->asmqjmps_count = 0;
core->asmqjmps_size = R_CORE_ASMQJMPS_NUM;
core->asmqjmps = realloc (core->asmqjmps, core->asmqjmps_size * sizeof (ut64));
if (core->asmqjmps) {
for (i = 0; i < R_CORE_ASMQJMPS_NUM; i++) {
core->asmqjmps[i] = UT64_MAX;
}
}
}
toro:
// uhm... is this necesary? imho can be removed
r_asm_set_pc (core->assembler, p2v (ds, ds->addr + idx));
core->cons->vline = r_config_get_i (core->config, "scr.utf8") ? r_vline_u : r_vline_a;
if (core->print->cur_enabled) {
// TODO: support in-the-middle-of-instruction too
r_anal_op_fini (&ds->analop);
if (r_anal_op (core->anal, &ds->analop, core->offset + core->print->cur,
buf + core->print->cur, (int)(len - core->print->cur))) {
// TODO: check for ds->analop.type and ret
ds->dest = ds->analop.jump;
}
} else {
/* highlight eip */
const char *pc = core->anal->reg->name[R_REG_NAME_PC];
RFlagItem *item = r_flag_get (core->flags, pc);
if (item) {
ds->dest = item->offset;
}
}
ds_print_esil_anal_init (ds);
inc = 0;
if (!ds->l) {
len = ds->l = core->blocksize;
}
ds->stackptr = core->anal->stackptr;
r_cons_break_push (NULL, NULL);
r_anal_build_range_on_hints (core->anal);
for (i = idx = ret = 0; idx < len && ds->lines < ds->l; idx += inc, i++, ds->index += inc, ds->lines++) {
ds->at = ds->addr + idx;
ds->vat = p2v (ds, ds->at);
if (r_cons_is_breaked ()) {
dorepeat = 0;
r_cons_break_pop ();
return 0; //break;
}
r_core_seek_archbits (core, ds->at); // slow but safe
ds->has_description = false;
ds->hint = r_core_hint_begin (core, ds->hint, ds->at);
r_asm_set_pc (core->assembler, ds->at);
ds_update_ref_lines (ds);
f = r_anal_get_fcn_in (core->anal, ds->at, R_ANAL_FCN_TYPE_NULL);
ds->fcn = f;
if (f && f->folded && r_anal_fcn_is_in_offset (f, ds->at)) {
int delta = (ds->at <= f->addr)? (ds->at - f->addr + r_anal_fcn_size (f)): 0;
if (of != f) {
char cmt[32];
get_bits_comment (core, f, cmt, sizeof (cmt));
ds_show_comments_right (ds);
r_cons_printf ("%s%s%s (fcn) %s%s%s\n",
COLOR (ds, color_fline), core->cons->vline[CORNER_TL],
COLOR (ds, color_fname), f->name, cmt, COLOR_RESET (ds));
ds_setup_print_pre (ds, true, false);
ds_print_lines_left (ds);
ds_print_offset (ds);
r_cons_printf ("(%d byte folded function)\n", r_anal_fcn_size (f));
//r_cons_printf ("%s%s%s\n", COLOR (ds, color_fline), core->cons->vline[RDWN_CORNER], COLOR_RESET (ds));
if (delta < 0) {
delta = -delta;
}
ds->addr += delta + idx;
r_io_read_at (core->io, ds->addr, buf, len);
inc = 0; //delta;
idx = 0;
of = f;
if (len == l) {
break;
}
continue;
} else {
ds->lines--;
ds->addr += 1;
r_io_read_at (core->io, ds->addr, buf, len);
inc = 0; //delta;
idx = 0;
continue;
}
}
ds_show_comments_right (ds);
// TRY adding here
char *link_key = sdb_fmt (-1, "link.%08"PFMT64x, ds->addr + idx);
const char *link_type = sdb_const_get (core->anal->sdb_types, link_key, 0);
if (link_type) {
char *fmt = r_anal_type_format (core->anal, link_type);
if (fmt) {
r_cons_printf ("(%s)\n", link_type);
r_core_cmdf (core, "pf %s @ 0x%08"PFMT64x"\n", fmt, ds->addr + idx);
inc += r_anal_type_get_size (core->anal, link_type) / 8;
free (fmt);
continue;
}
} else {
if (idx >= 0) {
ret = ds_disassemble (ds, buf + idx, len - idx);
if (ret == -31337) {
inc = ds->oplen;
continue;
}
}
}
if (ds->retry) {
ds->retry = false;
r_cons_break_pop ();
goto retry;
}
ds_atabs_option (ds);
// TODO: store previous oplen in core->dec
if (!core->inc) {
core->inc = ds->oplen;
}
if (ds->analop.mnemonic || !ds->lastfail) {
r_anal_op_fini (&ds->analop);
}
if (!ds->lastfail) {
r_anal_op (core->anal, &ds->analop, ds->at, buf+idx, (int)(len - idx));
}
if (ret < 1) {
r_strbuf_init (&ds->analop.esil);
ds->analop.type = R_ANAL_OP_TYPE_ILL;
}
if (ds->hint) {
if (ds->hint->size) {
ds->analop.size = ds->hint->size;
}
if (ds->hint->ptr) {
ds->analop.ptr = ds->hint->ptr;
}
}
ds_print_bbline (ds, false);
if (ds->at >= addr) {
r_print_set_rowoff (core->print, ds->lines, ds->at - addr);
}
if (ds->midflags) {
skip_bytes = handleMidFlags (core, ds, true);
if (skip_bytes && ds->midflags == R_MIDFLAGS_SHOW) {
ds->at += skip_bytes;
}
}
ds_show_flags (ds);
if (skip_bytes && ds->midflags == R_MIDFLAGS_SHOW) {
ds->at -= skip_bytes;
}
ds_control_flow_comments (ds);
ds_adistrick_comments (ds);
/* XXX: This is really cpu consuming.. need to be fixed */
ds_show_functions (ds);
ds_show_xrefs (ds);
if (ds->show_comments && !ds->show_comment_right) {
ds_instruction_mov_lea (ds, idx);
ds_show_refs (ds);
ds_build_op_str (ds);
ds_print_ptr (ds, len + 256, idx);
if (!ds->pseudo) {
R_FREE (ds->opstr);
}
ds_print_fcn_name (ds);
ds_print_color_reset (ds);
if (ds->show_emu) {
ds_print_esil_anal (ds);
}
}
ds_setup_print_pre (ds, false, false);
ds_print_lines_left (ds);
f = r_anal_get_fcn_in (core->anal, ds->addr, 0);
if (ds_print_labels (ds, f)) {
ds_show_functions (ds);
ds_show_xrefs (ds);
ds_setup_print_pre (ds, false, false);
ds_print_lines_left (ds);
}
ds_print_offset (ds);
ds_print_op_size (ds);
ds_print_trace (ds);
ds_print_cycles (ds);
ds_print_family (ds);
ds_print_stackptr (ds);
ret = ds_print_meta_infos (ds, buf, len, idx);
if (!ds->mi_found) {
/* show cursor */
ds_print_show_cursor (ds);
ds_print_show_bytes (ds);
ds_print_lines_right (ds);
ds_build_op_str (ds);
ds_print_opstr (ds);
ds_print_dwarf (ds);
ret = ds_print_middle (ds, ret);
ds_print_asmop_payload (ds, buf + idx);
if (core->assembler->syntax != R_ASM_SYNTAX_INTEL) {
RAsmOp ao; /* disassemble for the vm .. */
int os = core->assembler->syntax;
r_asm_set_syntax (core->assembler, R_ASM_SYNTAX_INTEL);
r_asm_disassemble (core->assembler, &ao, buf + idx, len - idx + 5);
r_asm_set_syntax (core->assembler, os);
}
ds_print_core_vmode (ds);
// ds_print_cc_update (ds);
ds_cdiv_optimization (ds);
if (ds->show_comments && ds->show_comment_right) {
ds_instruction_mov_lea (ds, idx);
ds_print_ptr (ds, len + 256, idx);
ds_print_fcn_name (ds);
ds_print_color_reset (ds);
ds_print_comments_right (ds);
ds_print_esil_anal (ds);
ds_show_refs (ds);
}
} else {
if (ds->show_comments && ds->show_comment_right) {
ds_print_color_reset (ds);
ds_print_comments_right (ds);
}
ds->mi_found = false;
}
r_cons_newline ();
if (ds->show_bbline && !ds->bblined && !ds->fcn) {
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_MJMP:
case R_ANAL_OP_TYPE_UJMP:
case R_ANAL_OP_TYPE_IJMP:
case R_ANAL_OP_TYPE_RJMP:
case R_ANAL_OP_TYPE_IRJMP:
case R_ANAL_OP_TYPE_CJMP:
case R_ANAL_OP_TYPE_JMP:
case R_ANAL_OP_TYPE_RET:
ds_print_bbline (ds, true);
break;
}
}
if (ds->line) {
if (ds->show_lines_ret && ds->analop.type == R_ANAL_OP_TYPE_RET) {
if (strchr (ds->line, '>')) {
memset (ds->line, ' ', r_str_len_utf8 (ds->line));
}
r_cons_printf ("%s%s%s%s; --------------------------------------\n",
ds->pre, COLOR (ds, color_flow), ds->line, COLOR_RESET (ds));
}
R_FREE (ds->line);
R_FREE (ds->refline);
R_FREE (ds->refline2);
}
R_FREE (ds->opstr);
inc = ds->oplen;
if (ds->midflags == R_MIDFLAGS_REALIGN && skip_bytes) {
inc = skip_bytes;
}
if (inc < 1) {
inc = 1;
}
inc += ds->asmop.payload + (ds->asmop.payload % ds->core->assembler->dataalign);
}
R_FREE (nbuf);
r_cons_break_pop ();
#if HASRETRY
if (!ds->cbytes && ds->lines < ds->l && dorepeat) {
ds->addr = ds->at + inc;
retry:
if (len < 4) {
len = 4;
}
buf = nbuf = malloc (len);
if (ds->tries > 0) {
if (r_core_read_at (core, ds->addr, buf, len)) {
goto toro;
}
}
if (ds->lines < ds->l) {
//ds->addr += idx;
if (r_core_read_at (core, ds->addr, buf, len) != len) {
//ds->tries = -1;
}
goto toro;
}
if (continueoninvbreak) {
goto toro;
}
R_FREE (nbuf);
}
#endif
r_print_set_rowoff (core->print, ds->lines, ds->at - addr);
r_print_set_rowoff (core->print, ds->lines + 1, UT32_MAX);
// TODO: this too (must review)
ds_print_esil_anal_fini (ds);
ds_reflines_fini (ds);
ds_free (ds);
R_FREE (nbuf);
/* used by asm.emu */
r_reg_arena_pop (core->anal->reg);
return idx; //-ds->lastfail;
}
/* Disassemble either `nb_opcodes` instructions, or
* `nb_bytes` bytes; both can be negative.
* Set to 0 the parameter you don't use */
R_API int r_core_print_disasm_instructions(RCore *core, int nb_bytes, int nb_opcodes) {
RDisasmState *ds = NULL;
int i, j, ret, len = 0;
char *tmpopstr;
const ut64 old_offset = core->offset;
bool hasanal = false;
int nbytes = 0;
r_reg_arena_push (core->anal->reg);
if (!nb_bytes) {
nb_bytes = core->blocksize;
if (nb_opcodes < 0) {
/* Backward disassembly or nb_opcodes opcodes
* - We compute the new starting offset
* - Read at the new offset */
nb_opcodes = -nb_opcodes;
// We have some anal_info.
if (r_core_prevop_addr (core, core->offset, nb_opcodes, &core->offset)) {
nbytes = old_offset - core->offset;
} else {
// core->offset is modified by r_core_prevop_addr
core->offset = old_offset;
r_core_asm_bwdis_len (core, &nbytes, &core->offset, nb_opcodes);
}
if (nbytes > core->blocksize) {
r_core_block_size (core, nbytes);
}
r_core_read_at (core, core->offset, core->block, nbytes);
}
} else {
if (nb_bytes < 0) { // Disassemble backward `nb_bytes` bytes
nb_bytes = -nb_bytes;
core->offset -= nb_bytes;
r_core_read_at (core, core->offset, core->block, nb_bytes);
} else {
if (nb_bytes > core->blocksize) {
r_core_block_size (core, nb_bytes);
r_core_read_at (core, core->offset, core->block, nb_bytes);
}
}
}
// XXX - is there a better way to reset a the analysis counter so that
// when code is disassembled, it can actually find the correct offsets
if (core->anal->cur && core->anal->cur->reset_counter) {
core->anal->cur->reset_counter (core->anal, core->offset);
}
ds = ds_init (core);
ds->l = nb_opcodes;
ds->len = nb_opcodes * 8;
if (ds->len > core->blocksize) {
if (core->fixedblock) {
nb_bytes = ds->len = core->blocksize;
} else {
r_core_block_size (core, ds->len);
r_core_block_read (core);
}
}
if (!ds->l) {
ds->l = ds->len;
}
r_cons_break_push (NULL, NULL);
//build ranges to map addr with bits
r_anal_build_range_on_hints (core->anal);
#define isTheEnd (nb_opcodes? j<nb_opcodes: i<nb_bytes)
for (i = j = 0; isTheEnd; i += ret, j++) {
ds->at = core->offset +i;
ds->vat = p2v (ds, ds->at);
hasanal = false;
r_core_seek_archbits (core, ds->at);
if (r_cons_is_breaked ()) {
break;
}
ds->hint = r_core_hint_begin (core, ds->hint, ds->at);
ds->has_description = false;
r_asm_set_pc (core->assembler, ds->at);
// XXX copypasta from main disassembler function
r_anal_get_fcn_in (core->anal, ds->at, R_ANAL_FCN_TYPE_NULL);
ret = r_asm_disassemble (core->assembler, &ds->asmop,
core->block + i, core->blocksize - i);
ds->oplen = ret;
if (ds->midflags) {
int skip_bytes = handleMidFlags (core, ds, true);
if (skip_bytes && ds->midflags > R_MIDFLAGS_SHOW) {
ret = skip_bytes;
}
}
r_anal_op_fini (&ds->analop);
if (ds->show_color && !hasanal) {
r_anal_op (core->anal, &ds->analop, ds->at, core->block + i, core->blocksize - i);
hasanal = true;
}
//r_conf = s_printf ("0x%08"PFMT64x" ", core->offset+i);
if (ds->hint && ds->hint->size) {
ret = ds->hint->size;
ds->oplen = ret;
ds->analop.size = ret;
ds->asmop.size = ret;
}
/* fix infinite loop */
if (ret < 1) {
ret = 1;
}
len += R_MAX (0, ret);
if (ds->hint && ds->hint->opcode) {
free (ds->opstr);
ds->opstr = strdup (ds->hint->opcode);
} else {
if (ds->use_esil) {
if (!hasanal) {
r_anal_op (core->anal, &ds->analop,
ds->at, core->block+i,
core->blocksize-i);
hasanal = true;
}
if (*R_STRBUF_SAFEGET (&ds->analop.esil)) {
free (ds->opstr);
ds->opstr = strdup (R_STRBUF_SAFEGET (&ds->analop.esil));
}
} else if (ds->filter) {
char *asm_str;
int ofs = core->parser->flagspace;
int fs = ds->flagspace_ports;
if (ds->analop.type == R_ANAL_OP_TYPE_IO) {
core->parser->notin_flagspace = -1;
core->parser->flagspace = fs;
} else {
if (fs != -1) {
core->parser->notin_flagspace = fs;
core->parser->flagspace = fs;
} else {
core->parser->notin_flagspace = -1;
core->parser->flagspace = -1;
}
}
core->parser->hint = ds->hint;
r_parse_filter (core->parser, core->flags, ds->asmop.buf_asm, ds->str,
sizeof (ds->str), core->print->big_endian);
ds->opstr = strdup (ds->str);
asm_str = colorize_asm_string (core, ds);
core->parser->flagspace = ofs;
free (ds->opstr);
ds->opstr = asm_str;
core->parser->flagspace = ofs; // ???
} else {
ds->opstr = strdup (ds->asmop.buf_asm);
}
if (ds->decode) {
free (ds->opstr);
if (!hasanal) {
r_anal_op (core->anal, &ds->analop, ds->at, core->block+i, core->blocksize-i);
hasanal = true;
}
tmpopstr = r_anal_op_to_string (core->anal, &ds->analop);
ds->opstr = (tmpopstr)? tmpopstr: strdup (ds->asmop.buf_asm);
}
}
{
const char *opcolor = NULL;
if (ds->show_color) {
opcolor = r_print_color_op_type (core->print, ds->analop.type);
r_cons_printf ("%s%s" Color_RESET "\n", opcolor, ds->opstr);
} else {
r_cons_println (ds->opstr);
}
R_FREE (ds->opstr);
}
if (ds->hint) {
r_anal_hint_free (ds->hint);
ds->hint = NULL;
}
}
r_cons_break_pop ();
ds_free (ds);
core->offset = old_offset;
r_reg_arena_pop (core->anal->reg);
return len;
}
R_API int r_core_print_disasm_json(RCore *core, ut64 addr, ut8 *buf, int nb_bytes, int nb_opcodes) {
RAsmOp asmop;
RDisasmState *ds;
RAnalFunction *f;
int i, j, k, oplen, ret, line;
ut64 old_offset = core->offset;
ut64 at;
int dis_opcodes = 0;
//r_cons_printf ("[");
int limit_by = 'b';
if (nb_opcodes != 0) {
limit_by = 'o';
}
if (nb_opcodes) { // Disassemble `nb_opcodes` opcodes.
if (nb_opcodes < 0) {
int count, nbytes = 0;
/* Backward disassembly of `nb_opcodes` opcodes:
* - We compute the new starting offset
* - Read at the new offset */
nb_opcodes = -nb_opcodes;
if (nb_opcodes > 0xffff) {
eprintf ("Too many backward instructions\n");
return 0;
}
if (r_core_prevop_addr (core, core->offset, nb_opcodes, &addr)) {
nbytes = old_offset - addr;
} else if (!r_core_asm_bwdis_len (core, &nbytes, &addr, nb_opcodes)) {
/* workaround to avoid empty arrays */
#define BWRETRY 0
#if BWRETRY
nb_opcodes ++;
if (!r_core_asm_bwdis_len (core, &nbytes, &addr, nb_opcodes)) {
#endif
r_cons_printf ("]");
return false;
#if BWRETRY
}
#endif
nb_opcodes --;
}
count = R_MIN (nb_bytes, nbytes);
if (count > 0) {
r_core_read_at (core, addr, buf, count);
r_core_read_at (core, addr+count, buf+count, nb_bytes-count);
} else {
if (nb_bytes > 0) {
memset (buf, 0xff, nb_bytes);
}
}
} else {
// If we are disassembling a positive number of lines, enable dis_opcodes
// to be used to finish the loop
// If we are disasembling a negative number of lines, we just calculate
// the equivalent addr and nb_size and scan a positive number of BYTES
// so keep dis_opcodes = 0;
dis_opcodes = 1;
r_core_read_at (core, addr, buf, nb_bytes);
}
} else { // Disassemble `nb_bytes` bytes
if (nb_bytes < 0) {
//Backward disassembly of `nb_bytes` bytes
nb_bytes = -nb_bytes;
addr -= nb_bytes;
r_core_read_at (core, addr, buf, nb_bytes);
}
}
core->offset = addr;
// XXX - is there a better way to reset a the analysis counter so that
// when code is disassembled, it can actually find the correct offsets
if (core->anal && core->anal->cur && core->anal->cur->reset_counter) {
core->anal->cur->reset_counter (core->anal, addr);
}
// TODO: add support for anal hints
// If using #bytes i = j
// If using #opcodes, j is the offset from start address. i is the
// offset in current disassembly buffer (256 by default)
i = k = j = line = 0;
// i = number of bytes
// j = number of instructions
// k = delta from addr
ds = ds_init (core);
for (;;) {
bool end_nbopcodes, end_nbbytes;
at = addr + k;
r_asm_set_pc (core->assembler, at);
// 32 is the biggest opcode length in intel
// Make sure we have room for it
if (dis_opcodes == 1 && i >= nb_bytes - 32) {
// Read another nb_bytes bytes into buf from current offset
r_core_read_at (core, at, buf, nb_bytes);
i = 0;
}
if (limit_by == 'o') {
if (j >= nb_opcodes) {
break;
}
} else if (i >= nb_bytes) {
break;
}
ret = r_asm_disassemble (core->assembler, &asmop, buf + i, nb_bytes - i);
if (ret < 1) {
r_cons_printf (j > 0 ? ",{" : "{");
r_cons_printf ("\"offset\":%"PFMT64d, at);
r_cons_printf (",\"size\":1,\"type\":\"invalid\"}");
i++;
k++;
j++;
continue;
}
ds->has_description = false;
r_anal_op_fini (&ds->analop);
r_anal_op (core->anal, &ds->analop, at, buf + i, nb_bytes - i);
if (ds->pseudo) {
r_parse_parse (core->parser, asmop.buf_asm, asmop.buf_asm);
}
f = r_anal_get_fcn_in (core->anal, at, R_ANAL_FCN_TYPE_FCN | R_ANAL_FCN_TYPE_SYM);
if (ds->varsub && f) {
core->parser->varlist = r_anal_var_list_dynamic;
r_parse_varsub (core->parser, f, at, ds->analop.size,
asmop.buf_asm, asmop.buf_asm, sizeof (asmop.buf_asm));
}
oplen = r_asm_op_get_size (&asmop);
ds->oplen = oplen;
ds->at = at;
if (ds->midflags) {
int skip_bytes = handleMidFlags (core, ds, true);
if (skip_bytes && ds->midflags > R_MIDFLAGS_SHOW) {
oplen = ds->oplen = ret = skip_bytes;
}
}
r_cons_printf (j > 0 ? ",{" : "{");
r_cons_printf ("\"offset\":%"PFMT64d, at);
if (ds->analop.ptr != UT64_MAX) {
r_cons_printf (",\"ptr\":%"PFMT64d, ds->analop.ptr);
}
if (ds->analop.val != UT64_MAX) {
r_cons_printf (",\"val\":%"PFMT64d, ds->analop.val);
}
r_cons_printf (",\"esil\":\"%s\"", R_STRBUF_SAFEGET (&ds->analop.esil));
r_cons_printf (",\"refptr\":%s", r_str_bool (ds->analop.refptr));
if (f) {
r_cons_printf (",\"fcn_addr\":%"PFMT64d, f->addr);
r_cons_printf (",\"fcn_last\":%"PFMT64d, f->addr + r_anal_fcn_size (f) - oplen);
} else {
r_cons_printf (",\"fcn_addr\":0");
r_cons_printf (",\"fcn_last\":0");
}
r_cons_printf (",\"size\":%d", ds->analop.size);
{
char *escaped_str = r_str_escape (asmop.buf_asm);
r_cons_printf (",\"opcode\":\"%s\"", escaped_str);
free (escaped_str);
}
r_cons_printf (",\"bytes\":\"%s\"", asmop.buf_hex);
r_cons_printf (",\"family\":\"%s\"",
r_anal_op_family_to_string (ds->analop.family));
r_cons_printf (",\"type\":\"%s\"", r_anal_optype_to_string (ds->analop.type));
// wanted the numerical values of the type information
r_cons_printf (",\"type_num\":%"PFMT64d, ds->analop.type);
r_cons_printf (",\"type2_num\":%"PFMT64d, ds->analop.type2);
// handle switch statements
if (ds->analop.switch_op && r_list_length (ds->analop.switch_op->cases) > 0) {
// XXX - the java caseop will still be reported in the assembly,
// this is an artifact to make ensure the disassembly is properly
// represented during the analysis
RListIter *iter;
RAnalCaseOp *caseop;
int cnt = r_list_length (ds->analop.switch_op->cases);
r_cons_printf (", \"switch\":[");
r_list_foreach (ds->analop.switch_op->cases, iter, caseop ) {
cnt--;
r_cons_printf ("{");
r_cons_printf ("\"addr\":%"PFMT64d, caseop->addr);
r_cons_printf (", \"value\":%"PFMT64d, (st64) caseop->value);
r_cons_printf (", \"jump\":%"PFMT64d, caseop->jump);
r_cons_printf ("}");
if (cnt > 0) {
r_cons_printf (",");
}
}
r_cons_printf ("]");
}
if (ds->analop.jump != UT64_MAX ) {
r_cons_printf (",\"jump\":%"PFMT64d, ds->analop.jump);
if (ds->analop.fail != UT64_MAX) {
r_cons_printf (",\"fail\":%"PFMT64d, ds->analop.fail);
}
}
/* add flags */
{
const RList *flags = r_flag_get_list (core->flags, at);
RFlagItem *flag;
RListIter *iter;
if (flags && !r_list_empty (flags)) {
r_cons_printf (",\"flags\":[");
r_list_foreach (flags, iter, flag) {
r_cons_printf ("%s\"%s\"", iter->p?",":"",flag->name);
}
r_cons_printf ("]");
}
}
/* add comments */
{
// TODO: slow because we are decoding and encoding b64
char *comment = r_meta_get_string (core->anal, R_META_TYPE_COMMENT, at);
if (comment) {
char *b64comment = sdb_encode ((const ut8*)comment, -1);
r_cons_printf (",\"comment\":\"%s\"", b64comment);
free (comment);
free (b64comment);
}
}
/* add xrefs */
{
RAnalRef *ref;
RListIter *iter;
RList *xrefs = r_anal_xref_get (core->anal, at);
if (xrefs && !r_list_empty (xrefs)) {
r_cons_printf (",\"xrefs\":[");
r_list_foreach (xrefs, iter, ref) {
r_cons_printf ("%s{\"addr\":%"PFMT64d",\"type\":\"%s\"}",
iter->p?",":"", ref->addr,
r_anal_xrefs_type_tostring (ref->type));
}
r_cons_printf ("]");
}
r_list_free (xrefs);
}
r_cons_printf ("}");
i += oplen + asmop.payload + (ds->asmop.payload % ds->core->assembler->dataalign); // bytes
k += oplen + asmop.payload + (ds->asmop.payload % ds->core->assembler->dataalign); // delta from addr
j++; // instructions
line++;
end_nbopcodes = dis_opcodes == 1 && nb_opcodes > 0 && line>=nb_opcodes;
end_nbbytes = dis_opcodes == 0 && nb_bytes > 0 && i>=nb_bytes;
if (end_nbopcodes || end_nbbytes) {
break;
}
}
// r_cons_printf ("]");
core->offset = old_offset;
r_anal_op_fini (&ds->analop);
return true;
}
R_API int r_core_print_disasm_all(RCore *core, ut64 addr, int l, int len, int mode) {
const bool scr_color = r_config_get_i (core->config, "scr.color");
int i, ret, err = 0, count = 0;
ut8 *buf = core->block;
char str[128];
RAsmOp asmop;
if (l < 1) {
l = len;
}
RDisasmState *ds = ds_init (core);
if (l > core->blocksize || addr != core->offset) {
buf = malloc (l + 1);
r_core_read_at (core, addr, buf, l);
}
if (mode == 'j') {
r_cons_printf ("[");
}
r_cons_break_push (NULL, NULL);
for (i = 0; i < l; i++) {
ds->at = addr + i;
ds->vat = p2v (ds, ds->at);
r_asm_set_pc (core->assembler, ds->vat);
if (r_cons_is_breaked ()) {
break;
}
ret = r_asm_disassemble (core->assembler, &asmop, buf + i, l - i);
if (ret < 1) {
ret = err = 1;
switch (mode) {
case 'j':
case '=':
break;
case 'i':
r_cons_printf ("???\n");
break;
default:
r_cons_printf ("0x%08"PFMT64x" ???\n", ds->vat);
break;
}
} else {
count ++;
switch (mode) {
case 'i':
r_parse_filter (core->parser, core->flags, asmop.buf_asm,
str, sizeof (str), core->print->big_endian);
if (scr_color) {
char *buf_asm;
RAnalOp aop;
r_anal_op (core->anal, &aop, addr, buf+i, l-i);
buf_asm = r_print_colorize_opcode (core->print, str,
core->cons->pal.reg, core->cons->pal.num, false);
r_cons_printf ("%s%s\n",
r_print_color_op_type (core->print, aop.type),
buf_asm);
free (buf_asm);
} else {
r_cons_println (asmop.buf_asm);
}
break;
case '=':
if (i < 28) {
char *str = r_str_newf ("0x%08"PFMT64x" %60s %s\n",
ds->vat, "", asmop.buf_asm);
char *sp = strchr (str, ' ');
if (sp) {
char *end = sp + 60 + 1;
const char *src = asmop.buf_hex;
char *dst = sp + 1 + (i * 2);
int len = strlen (src);
if (dst < end) {
if (dst + len >= end) {
len = end - dst;
dst[len] = '.';
}
memcpy (dst, src, len);
}
}
r_cons_strcat (str);
free (str);
}
break;
case 'j':
r_cons_printf ("{\"addr\":%08"PFMT64d",\"bytes\":\"%s\",\"inst\":\"%s\"}%s",
addr + i, asmop.buf_hex, asmop.buf_asm, ",");
break;
default:
r_cons_printf ("0x%08"PFMT64x" %20s %s\n",
addr + i, asmop.buf_hex, asmop.buf_asm);
}
}
}
r_cons_break_pop ();
if (buf != core->block) {
free (buf);
}
if (mode == 'j') {
r_cons_printf ("{}]\n");
}
ds_free (ds);
return count;
}
R_API int r_core_print_fcn_disasm(RPrint *p, RCore *core, ut64 addr, int l, int invbreak, int cbytes) {
RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, addr, R_ANAL_FCN_TYPE_NULL);
ut32 cur_buf_sz = 0;
ut8 *buf = NULL;
ut32 len = 0;
int ret, idx = 0, i;
RListIter *bb_iter;
RAnalBlock *bb = NULL;
RDisasmState *ds;
RList *bb_list = NULL;
if (!fcn) {
return -1;
}
cur_buf_sz = r_anal_fcn_size (fcn) + 1;
buf = malloc (cur_buf_sz);
if (!buf) {
return -1;
}
len = r_anal_fcn_size (fcn);
bb_list = r_list_new();
if (!bb_list) {
free (buf);
return -1;
}
//r_cons_printf ("len =%d l=%d ib=%d limit=%d\n", len, l, invbreak, p->limit);
// TODO: import values from debugger is possible
// TODO: allow to get those register snapshots from traces
// TODO: per-function register state trace
idx = 0;
memset (buf, 0, cur_buf_sz);
// XXX - is there a better way to reset a the analysis counter so that
// when code is disassembled, it can actually find the correct offsets
if (core->anal->cur && core->anal->cur->reset_counter) {
core->anal->cur->reset_counter (core->anal, addr);
}
// TODO: All those ds must be print flags
ds = ds_init (core);
ds->cbytes = cbytes;
ds->print = p;
ds->l = l;
ds->buf = buf;
ds->len = r_anal_fcn_size (fcn);
ds->addr = fcn->addr;
ds->fcn = fcn;
ds->stackptr = core->anal->stackptr;
r_list_foreach (fcn->bbs, bb_iter, bb) {
r_list_add_sorted (bb_list, bb, cmpaddr);
}
// Premptively read the bb data locs for ref lines
r_list_foreach (bb_list, bb_iter, bb) {
if (idx >= cur_buf_sz) {
break;
}
r_core_read_at (core, bb->addr, buf+idx, bb->size);
//ret = r_asm_disassemble (core->assembler, &ds->asmop, buf+idx, bb->size);
//if (ret > 0) eprintf ("%s\n",ds->asmop.buf_asm);
idx += bb->size;
}
ds_reflines_fcn_init (ds, fcn, buf);
core->inc = 0;
core->cons->vline = r_config_get_i (core->config, "scr.utf8")? r_vline_u: r_vline_a;
i = idx = 0;
r_cons_break_push (NULL, NULL);
ds_print_esil_anal_init (ds);
if (core->io && core->io->debug) {
r_debug_map_sync (core->dbg);
}
r_list_foreach (bb_list, bb_iter, bb) {
ut32 bb_size_consumed = 0;
// internal loop to consume bb that contain case-like operations
ds->at = bb->addr;
ds->vat = p2v (ds, ds->at);
ds->addr = bb->addr;
len = bb->size;
if (len > cur_buf_sz) {
free (buf);
cur_buf_sz = len;
buf = malloc (cur_buf_sz);
ds->buf = buf;
}
do {
// XXX - why is it necessary to set this everytime?
r_asm_set_pc (core->assembler, ds->at);
if (ds->lines >= ds->l) break;
if (r_cons_is_breaked ()) break;
ds_update_ref_lines (ds);
/* show type links */
r_core_cmdf (core, "tf 0x%08"PFMT64x, ds->at);
ds_show_comments_right (ds);
ret = ds_disassemble (ds, buf+idx, len - bb_size_consumed);
ds_atabs_option (ds);
// TODO: store previous oplen in core->dec
if (!core->inc) {
core->inc = ds->oplen;
}
r_anal_op_fini (&ds->analop);
if (!ds->lastfail) {
r_anal_op (core->anal, &ds->analop,
ds->at+bb_size_consumed, buf+idx,
len-bb_size_consumed);
}
if (ret < 1) {
r_strbuf_init (&ds->analop.esil);
ds->analop.type = R_ANAL_OP_TYPE_ILL;
}
ds_instruction_mov_lea (ds, idx);
ds_control_flow_comments (ds);
ds_adistrick_comments (ds);
/* XXX: This is really cpu consuming.. need to be fixed */
ds_show_functions (ds);
if (ds_print_labels (ds, fcn)) {
ds_show_functions (ds);
}
ds_show_xrefs (ds);
ds_show_flags (ds);
ds_setup_print_pre (ds, false, false);
ds_print_lines_left (ds);
ds_print_offset (ds);
ds_print_op_size (ds);
ds_print_trace (ds);
ds_print_cycles (ds);
ds_print_family (ds);
ds_print_stackptr (ds);
ret = ds_print_meta_infos (ds, buf, len, idx);
if (ds->mi_found) {
ds->mi_found = false;
continue;
}
/* show cursor */
ds_print_show_cursor (ds);
ds_print_show_bytes (ds);
ds_print_lines_right (ds);
ds_build_op_str (ds);
ds_print_opstr (ds);
ds_print_fcn_name (ds);
ds_print_import_name (ds);
ds_print_color_reset (ds);
ds_print_dwarf (ds);
ret = ds_print_middle (ds, ret);
ds_print_asmop_payload (ds, buf + idx);
if (core->assembler->syntax != R_ASM_SYNTAX_INTEL) {
RAsmOp ao; /* disassemble for the vm .. */
int os = core->assembler->syntax;
r_asm_set_syntax (core->assembler,
R_ASM_SYNTAX_INTEL);
r_asm_disassemble (core->assembler, &ao,
buf+idx, len-bb_size_consumed);
r_asm_set_syntax (core->assembler, os);
}
ds_print_core_vmode (ds);
//ds_print_cc_update (ds);
/*if (ds->analop.refptr) {
handle_print_refptr (core, ds);
} else {
handle_print_ptr (core, ds, len, idx);
}*/
ds_print_ptr (ds, len, idx);
ds_cdiv_optimization (ds);
ds_print_comments_right (ds);
ds_show_refs (ds);
ds_print_esil_anal (ds);
if (!(ds->show_comments && ds->show_comment_right && ds->comment)) {
r_cons_newline ();
}
if (ds->line) {
R_FREE (ds->line);
R_FREE (ds->refline);
R_FREE (ds->refline2);
}
ds_print_bbline (ds, false);
bb_size_consumed += ds->oplen;
ds->index += ds->oplen;
idx += ds->oplen;
ds->at += ds->oplen;
ds->addr += ds->oplen;
ds->lines++;
R_FREE (ds->opstr);
} while (bb_size_consumed < len);
i++;
}
free (buf);
r_cons_break_pop ();
ds_print_esil_anal_fini (ds);
ds_free (ds);
r_list_free (bb_list);
return idx;
}
static inline bool pdi_check_end(int nb_opcodes, int nb_bytes, int i, int j) {
if (nb_opcodes) {
if (nb_bytes) {
return j < nb_opcodes && i < nb_bytes;
}
return j < nb_opcodes;
}
return i < nb_bytes;
}
R_API int r_core_disasm_pdi(RCore *core, int nb_opcodes, int nb_bytes, int fmt) {
int show_offset = r_config_get_i (core->config, "asm.offset");
int show_bytes = r_config_get_i (core->config, "asm.bytes");
int decode = r_config_get_i (core->config, "asm.decode");
int filter = r_config_get_i (core->config, "asm.filter");
int show_color = r_config_get_i (core->config, "scr.color");
bool asm_ucase = r_config_get_i (core->config, "asm.ucase");
int esil = r_config_get_i (core->config, "asm.esil");
int flags = r_config_get_i (core->config, "asm.flags");
int i = 0, j, ret, err = 0;
ut64 old_offset = core->offset;
RAsmOp asmop;
const char *color_reg = R_CONS_COLOR_DEF (reg, Color_YELLOW);
const char *color_num = R_CONS_COLOR_DEF (num, Color_CYAN);
if (fmt == 'e') {
show_bytes = 0;
decode = 1;
}
if (!nb_opcodes && !nb_bytes) {
return 0;
}
if (!nb_opcodes) {
nb_opcodes = 0xffff;
if (nb_bytes < 0) {
// Backward disasm `nb_bytes` bytes
nb_bytes = -nb_bytes;
core->offset -= nb_bytes;
r_core_read_at (core, core->offset, core->block, nb_bytes);
}
} else if (!nb_bytes) {
if (nb_opcodes < 0) {
ut64 start;
/* Backward disassembly of `ilen` opcodes
* - We compute the new starting offset
* - Read at the new offset */
nb_opcodes = -nb_opcodes;
if (r_core_prevop_addr (core, core->offset, nb_opcodes, &start)) {
// We have some anal_info.
nb_bytes = core->offset - start;
} else {
// anal ignorance.
r_core_asm_bwdis_len (core, &nb_bytes, &core->offset,
nb_opcodes);
}
if (nb_bytes > core->blocksize) {
r_core_block_size (core, nb_bytes);
}
r_core_read_at (core, core->offset, core->block, nb_bytes);
} else {
// workaround for the `for` loop below
nb_bytes = core->blocksize;
}
}
// XXX - is there a better way to reset a the analysis counter so that
// when code is disassembled, it can actually find the correct offsets
if (core->anal && core->anal->cur && core->anal->cur->reset_counter) {
core->anal->cur->reset_counter (core->anal, core->offset);
}
int len = (nb_opcodes + nb_bytes) * 5;
if (core->fixedblock) {
len = core->blocksize;
} else {
if (len > core->blocksize) {
r_core_block_size (core, len);
r_core_block_read (core);
}
}
r_cons_break_push (NULL, NULL);
int midflags = r_config_get_i (core->config, "asm.midflags");
for (i = j = 0; pdi_check_end (nb_opcodes, nb_bytes, i, j); j++) {
RFlagItem *item;
if (r_cons_is_breaked ()) {
err = 1;
break;
}
RAnalMetaItem *meta = r_meta_find (core->anal, core->offset + i,
R_META_TYPE_ANY, R_META_WHERE_HERE);
if (meta && meta->size > 0) {
switch (meta->type) {
case R_META_TYPE_DATA:
r_cons_printf (".data: %s\n", meta->str);
i += meta->size;
continue;
case R_META_TYPE_STRING:
r_cons_printf (".string: %s\n", meta->str);
i += meta->size;
continue;
case R_META_TYPE_FORMAT:
r_cons_printf (".format : %s\n", meta->str);
i += meta->size;
continue;
case R_META_TYPE_MAGIC:
r_cons_printf (".magic : %s\n", meta->str);
i += meta->size;
continue;
case R_META_TYPE_RUN:
/* TODO */
break;
}
}
r_asm_set_pc (core->assembler, core->offset + i);
ret = r_asm_disassemble (core->assembler, &asmop, core->block + i,
core->blocksize - i);
if (midflags) {
RDisasmState ds = {
.oplen = ret,
.at = core->offset + i,
.midflags = midflags
};
int skip_bytes = handleMidFlags (core, &ds, true);
if (skip_bytes && midflags > R_MIDFLAGS_SHOW) {
ret = skip_bytes;
asmop.size = ret;
}
}
if (fmt == 'C') {
char *comment = r_meta_get_string (core->anal, R_META_TYPE_COMMENT, core->offset + i);
if (comment) {
r_cons_printf ("0x%08"PFMT64x " %s\n", core->offset + i, comment);
free (comment);
}
i += ret;
continue;
}
if (flags) {
if (fmt != 'e') { // pie
item = r_flag_get_i (core->flags, core->offset + i);
if (item) {
if (show_offset) {
r_cons_printf ("0x%08"PFMT64x " ", core->offset + i);
}
r_cons_printf (" %s:\n", item->name);
}
} // do not show flags in pie
}
ut64 at = core->offset + i;
if (show_offset) {
const int show_offseg = (core->print->flags & R_PRINT_FLAGS_SEGOFF) != 0;
const int show_offdec = (core->print->flags & R_PRINT_FLAGS_ADDRDEC) != 0;
r_print_offset (core->print, at, 0, show_offseg, show_offdec, 0, NULL);
}
// r_cons_printf ("0x%08"PFMT64x" ", core->offset+i);
if (ret < 1) {
err = 1;
ret = asmop.size;
if (ret < 1) {
ret = 1;
}
if (show_bytes) {
r_cons_printf ("%18s%02x ", "", core->block[i]);
}
r_cons_println ("invalid"); // ???");
} else {
if (show_bytes) {
r_cons_printf ("%20s ", asmop.buf_hex);
}
ret = asmop.size;
if (decode || esil) {
RAnalOp analop = {
0
};
char *tmpopstr, *opstr = NULL;
r_anal_op (core->anal, &analop, core->offset + i,
core->block + i, core->blocksize - i);
tmpopstr = r_anal_op_to_string (core->anal, &analop);
if (fmt == 'e') { // pie
char *esil = (R_STRBUF_SAFEGET (&analop.esil));
r_cons_println (esil);
} else {
if (decode) {
opstr = (tmpopstr)? tmpopstr: (asmop.buf_asm);
} else if (esil) {
opstr = (R_STRBUF_SAFEGET (&analop.esil));
}
r_cons_println (opstr);
}
} else {
char opstr[128] = {
0
};
char *asm_str = (char *)&asmop.buf_asm;
if (asm_ucase) {
r_str_case (asm_str, 1);
}
if (filter) {
core->parser->hint = r_anal_hint_get (core->anal, at);
r_parse_filter (core->parser, core->flags,
asm_str, opstr, sizeof (opstr) - 1, core->print->big_endian);
asm_str = (char *)&opstr;
}
if (show_color) {
RAnalOp aop = {
0
};
r_anal_op (core->anal, &aop, core->offset + i,
core->block + i, core->blocksize - i);
asm_str = r_print_colorize_opcode (core->print, asm_str, color_reg, color_num, false);
r_cons_printf ("%s%s"Color_RESET "\n",
r_print_color_op_type (core->print, aop.type),
asm_str);
} else {
r_cons_println (asm_str);
}
}
}
i += ret;
#if 0
if ((nb_bytes && (nb_bytes <= i)) || (i >= core->blocksize)) {
break;
}
#endif
}
r_cons_break_pop ();
core->offset = old_offset;
return err;
}