radare2/libr/core/disasm.c

6052 lines
166 KiB
C

/* radare - LGPL - Copyright 2009-2019 - nibble, pancake, dso */
#include "r_core.h"
#include "r_cons.h"
#define HASRETRY 1
#define HAVE_LOCALS 1
#define DEFAULT_NARGS 4
#define COLOR(ds, field) ((ds)->show_color ? (ds)->field : "")
#define COLOR_ARG(ds, field) ((ds)->show_color && (ds)->show_color_args ? (ds)->field : "")
#define COLOR_CONST(ds, color) ((ds)->show_color ? Color_ ## color : "")
#define COLOR_RESET(ds) COLOR_CONST(ds, RESET)
// ugly globals but meh
static ut64 emustack_min = 0LL;
static ut64 emustack_max = 0LL;
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
// "↑", // LINE_UP
//"┌", // LUP_CORNER
"", // LUP_CORNER
"", // RDWN_CORNER
"", // RUP_CORNER
"", // LDWN_CORNER
">", // ARROW_RIGHT
"<", // ARROW_LEFT
};
static const char* r_vline_uc[] = {
"", // LINE_VERT
"", // LINE_CROSS
"", // LINE_HORIZ
// "↑", // LINE_UP
"", // LINE_UP
// "≀", // LINE_UP
//"┌", // LUP_CORNER
"", // LUP_CORNER
"", // RDWN_CORNER
"", // RUP_CORNER
"", // LDWN_CORNER
">", // ARROW_RIGHT
"<", // ARROW_LEFT
};
#define DS_PRE_NONE 0
#define DS_PRE_EMPTY 1
#define DS_PRE_FCN_HEAD 2
#define DS_PRE_FCN_MIDDLE 3
#define DS_PRE_FCN_TAIL 4
// 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 {
RCore *core;
char str[1024], strsub[1024];
bool immtrim;
bool immstr;
bool use_esil;
bool show_color;
bool show_color_bytes;
bool show_color_args;
int colorop;
int acase;
bool capitalize;
bool show_flgoff;
bool hasMidflag;
bool hasMidbb;
int atabs;
int atabsonce;
int atabsoff;
int decode;
bool pseudo;
int filter;
int interactive;
bool jmpsub;
bool varsub;
bool show_lines;
bool show_lines_bb;
bool show_lines_ret;
bool show_lines_call;
bool show_lines_fcn;
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;
bool asm_meta;
int asm_demangle;
bool show_offset;
bool show_offdec; // dupe for r_print->flags
bool show_bbline;
bool show_emu;
bool pre_emu;
bool show_emu_str;
bool show_emu_stroff;
bool show_emu_strinv;
bool show_emu_strflag;
bool show_emu_stack;
bool show_emu_write;
bool show_emu_strlea;
bool show_emu_ssa;
bool show_section;
int show_section_col;
bool show_section_perm;
bool show_section_name;
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_usercomments;
bool asm_hints;
bool asm_hint_jmp;
bool asm_hint_cdiv;
bool asm_hint_lea;
int asm_hint_pos;
bool show_slow;
Sdb *ssa;
int cmtcol;
bool show_calls;
bool show_cmtflgrefs;
bool show_cycles;
bool show_stackptr;
int stackFd;
bool show_xrefs;
bool show_cmtrefs;
const char *show_cmtoff;
bool show_functions;
bool show_marks;
bool show_asciidot;
RStrEnc strenc;
int cursor;
int show_comment_right_default;
RSpace *flagspace_ports;
int show_flag_in_bytes;
int lbytes;
int show_comment_right;
int pre;
char *ocomment;
int linesopts;
int lastfail;
int ocols;
int lcols;
int nb, nbytes;
int show_utf8;
int lines;
int oplen;
bool show_varaccess;
bool show_vars;
bool hinted_line;
int show_varsum;
int midflags;
bool midbb;
bool midcursor;
bool show_noisy_comments;
ut64 asm_highlight;
const char *pal_comment;
const char *color_comment;
const char *color_usrcmt;
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_btext;
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;
const char *color_linehl;
const char *color_func_var;
const char *color_func_var_type;
const char *color_func_var_addr;
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;
char chref;
bool retry;
bool mi_found;
RAsmOp asmop;
RAnalOp analop;
RAnalFunction *fcn;
RAnalFunction *pdf;
const ut8 *buf;
int len;
int maxrefs;
int foldxrefs;
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;
int cmtcount;
bool asm_anal;
ut64 printed_str_addr;
ut64 printed_flag_addr;
ut64 min_ref_addr;
PJ *pj; // not null iff printing json
int buf_line_begin;
const char *strip;
int maxflags;
int asm_types;
} 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_pre_line(RDisasmState *ds);
static void ds_begin_line(RDisasmState *ds);
static void ds_newline(RDisasmState *ds);
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_build_op_str(RDisasmState *ds, bool print_color);
static void ds_pre_xrefs(RDisasmState *ds, bool no_fcnlines);
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_sysregs(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, int pos);
static void ds_print_dwarf(RDisasmState *ds);
static void ds_print_asmop_payload(RDisasmState *ds, const ut8 *buf);
static char *ds_esc_str(RDisasmState *ds, const char *str, int len, const char **prefix_out, bool is_comment);
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, ut64 refaddr);
static char *ds_sub_jumps(RDisasmState *ds, char *str);
static void ds_start_line_highlight(RDisasmState *ds);
static void ds_end_line_highlight(RDisasmState *ds);
static bool line_highlighted(RDisasmState *ds);
R_API ut64 r_core_pava (RCore *core, ut64 addr) {
if (core->pava) {
RIOMap *map = r_io_map_get_paddr (core->io, addr);
if (map) {
return addr - map->delta + map->itv.addr;
}
}
return addr;
}
static RAnalFunction *fcnIn(RDisasmState *ds, ut64 at, int type) {
if (ds->fcn && r_tinyrange_in (&ds->fcn->bbr, at)) {
return ds->fcn;
}
return r_anal_get_fcn_in (ds->core->anal, at, type);
}
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;
if (oaddr == addr) {
return section;
}
RBinObject *bo = r_bin_cur_object (core->bin);
RBinSection *s = bo? r_bin_get_section_at (bo, addr, core->io->va): NULL;
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) {
ds->cmtcount ++;
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
const char *sn = ds->show_section ? get_section_name (ds->core, ds->at) : "";
// if (ds->cmtcount == 0) {
ds_align_comment (ds);
// }
sn = ds->show_section ? get_section_name (ds->core, ds->at) : "";
ds_align_comment (ds);
r_cons_print (COLOR_RESET (ds));
ds_print_pre (ds);
r_cons_printf ("%s%s%s%s%s %s %s", nl? "\n": "", sn,
COLOR (ds, color_flow),ds->refline, COLOR_RESET (ds),
up? "": ".-", COLOR (ds, color_comment));
#if 0
// r_cons_printf ("(%d)", ds->cmtcount);
if (ds->cmtcount == 1) {
ds_align_comment (ds);
r_cons_printf ("%s%s%s%s%s%s%s %s %s", nl? "\n": "",
COLOR_RESET (ds), COLOR (ds, color_fline),
ds->pre, sn, ds->refline, COLOR_RESET (ds),
up? "": ".v", COLOR (ds, color_comment));
} else {
r_cons_printf ("%s%s", COLOR (ds, color_comment), " "); //nl? "\n": "");
}
#if 0
if (!up || ds->cmtcount > 1) {
r_cons_printf ("%s%s", COLOR (ds, color_comment), nl? "\n": "");
} else {
ds_align_comment (ds);
r_cons_printf ("%s%s%s%s%s%s%s %s %s", nl? "\n": "",
COLOR_RESET (ds), COLOR (ds, color_fline),
ds->pre, sn, ds->refline, COLOR_RESET (ds),
up? "": "`-", COLOR (ds, color_comment));
}
#endif
#endif
}
#define _ALIGN _ds_comment_align_ (ds, true, false)
static void ds_comment_lineup(RDisasmState *ds) {
_ALIGN;
}
static void ds_comment_(RDisasmState *ds, bool align, bool nl, const char *format, va_list ap) {
if (ds->show_comments) {
if (ds->show_comment_right && align) {
ds_align_comment (ds);
} else {
r_cons_printf ("%s", COLOR (ds, color_comment));
}
}
r_cons_printf_list (format, ap);
if (!ds->show_comment_right && nl) {
ds_newline (ds);
}
}
static void ds_comment(RDisasmState *ds, bool align, const char *format, ...) {
va_list ap;
va_start (ap, format);
ds_comment_ (ds, align, align, format, ap);
va_end (ap);
}
#define DS_COMMENT_FUNC(name, align, nl) \
static void ds_comment_##name(RDisasmState *ds, const char *format, ...) { \
va_list ap; \
va_start (ap, format); \
ds_comment_ (ds, align, nl, format, ap); \
va_end (ap); \
}
DS_COMMENT_FUNC (start, true, false)
DS_COMMENT_FUNC (middle, false, false)
DS_COMMENT_FUNC (end, false, true)
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 && up) {
ds->show_comment_right ? ds_align_comment (ds) : ds_comment_lineup (ds);
}
r_cons_printf_list (format, ap);
va_end (ap);
if (ds->show_comments && !ds->show_comment_right) {
if (end) {
ds_newline (ds);
}
}
}
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 RDisasmState * ds_init(RCore *core) {
RDisasmState *ds = R_NEW0 (RDisasmState);
if (!ds) {
return NULL;
}
ds->core = core;
ds->strip = r_config_get (core->config, "asm.strip");
ds->pal_comment = core->cons->context->pal.comment;
#define P(x) (core->cons && core->cons->context->pal.x)? core->cons->context->pal.x
ds->color_comment = P(comment): Color_CYAN;
ds->color_usrcmt = P(usercomment): 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_btext = P(btext): 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->color_linehl = P(linehl): Color_BGBLUE;
ds->color_func_var = P(func_var): Color_WHITE;
ds->color_func_var_type = P(func_var_type): Color_BLUE;
ds->color_func_var_addr = P(func_var_addr): Color_CYAN;
ds->immstr = r_config_get_i (core->config, "asm.imm.str");
ds->immtrim = r_config_get_i (core->config, "asm.imm.trim");
ds->use_esil = r_config_get_i (core->config, "asm.esil");
ds->pre_emu = r_config_get_i (core->config, "emu.pre");
ds->show_flgoff = r_config_get_i (core->config, "asm.flags.offset");
ds->show_nodup = r_config_get_i (core->config, "asm.nodup");
{
const char *ah = r_config_get (core->config, "asm.highlight");
ds->asm_highlight = (ah && *ah)? r_num_math (core->num, ah): UT64_MAX;
}
ds->asm_anal = r_config_get_i (core->config, "asm.anal");
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->show_color_args = r_config_get_i (core->config, "scr.color.args");
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.tabs.once");
ds->atabsoff = r_config_get_i (core->config, "asm.tabs.off");
ds->midflags = r_config_get_i (core->config, "asm.flags.middle");
ds->midbb = r_config_get_i (core->config, "asm.bb.middle");
ds->midcursor = r_config_get_i (core->config, "asm.midcursor");
ds->decode = r_config_get_i (core->config, "asm.decode");
core->parser->pseudo = 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_cons_is_interactive ();
ds->jmpsub = r_config_get_i (core->config, "asm.jmpsub");
ds->varsub = r_config_get_i (core->config, "asm.var.sub");
core->parser->relsub = r_config_get_i (core->config, "asm.relsub");
core->parser->localvar_only = r_config_get_i (core->config, "asm.var.subonly");
core->parser->retleave_asm = NULL;
ds->show_vars = r_config_get_i (core->config, "asm.var");
ds->show_varsum = r_config_get_i (core->config, "asm.var.summary");
ds->show_varaccess = r_config_get_i (core->config, "asm.var.access");
ds->maxrefs = r_config_get_i (core->config, "asm.xrefs.max");
ds->maxflags = r_config_get_i (core->config, "asm.maxflags");
ds->asm_types = r_config_get_i (core->config, "asm.types");
ds->foldxrefs = r_config_get_i (core->config, "asm.xrefs.fold");
ds->show_lines = r_config_get_i (core->config, "asm.lines");
ds->show_lines_bb = ds->show_lines ? r_config_get_i (core->config, "asm.lines.bb") : false;
ds->linesright = r_config_get_i (core->config, "asm.lines.right");
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 = ds->show_lines ? r_config_get_i (core->config, "asm.lines.call") : false;
ds->show_lines_ret = ds->show_lines ? r_config_get_i (core->config, "asm.lines.ret") : false;
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.lines.out");
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_section_perm = r_config_get_i (core->config, "asm.section.perm");
ds->show_section_name = r_config_get_i (core->config, "asm.section.name");
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, "emu.str");
ds->show_emu_stroff = r_config_get_i (core->config, "emu.str.off");
ds->show_emu_strinv = r_config_get_i (core->config, "emu.str.inv");
ds->show_emu_strflag = r_config_get_i (core->config, "emu.str.flag");
ds->show_emu_strlea = r_config_get_i (core->config, "emu.str.lea");
ds->show_emu_write = r_config_get_i (core->config, "emu.write");
ds->show_emu_ssa = r_config_get_i (core->config, "emu.ssa");
ds->show_emu_stack = r_config_get_i (core->config, "emu.stack");
ds->stackFd = -1;
if (ds->show_emu_stack) {
// TODO: initialize fake stack in here
const char *uri = "malloc://32K";
ut64 size = r_num_get (core->num, "32K");
ut64 addr = r_reg_getv (core->anal->reg, "SP") - (size / 2);
emustack_min = addr;
emustack_max = addr + size;
ds->stackFd = r_io_fd_open (core->io, uri, R_PERM_RW, 0);
RIOMap *map = r_io_map_add (core->io, ds->stackFd, R_PERM_RW, 0LL, addr, size);
if (!map) {
r_io_fd_close (core->io, ds->stackFd);
eprintf ("Cannot create map for tha stack, fd %d got closed again\n", ds->stackFd);
ds->stackFd = -1;
} else {
r_io_map_set_name (map, "fake.stack");
}
}
ds->stackptr = core->anal->stackptr;
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->asm_meta = r_config_get_i (core->config, "asm.meta");
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_lines_fcn = ds->show_lines ? r_config_get_i (core->config, "asm.lines.fcn") : false;
ds->show_comments = r_config_get_i (core->config, "asm.comments");
ds->show_usercomments = r_config_get_i (core->config, "asm.usercomments");
ds->asm_hint_jmp = r_config_get_i (core->config, "asm.hint.jmp");
ds->asm_hint_lea = r_config_get_i (core->config, "asm.hint.lea");
ds->asm_hint_cdiv = r_config_get_i (core->config, "asm.hint.cdiv");
ds->asm_hint_pos = r_config_get_i (core->config, "asm.hint.pos");
ds->asm_hints = r_config_get_i (core->config, "asm.hints"); // only for cdiv wtf
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.cmt.col");
ds->show_cmtflgrefs = r_config_get_i (core->config, "asm.cmt.flgrefs");
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.cmt.refs");
ds->cmtfold = r_config_get_i (core->config, "asm.cmt.fold");
ds->show_cmtoff = r_config_get (core->config, "asm.cmt.off");
ds->show_functions = r_config_get_i (core->config, "asm.functions");
ds->nbytes = r_config_get_i (core->config, "asm.nbytes");
ds->show_asciidot = !strcmp (core->print->strconv_mode, "asciidot");
const char *strenc_str = r_config_get (core->config, "bin.str.enc");
if (!strcmp (strenc_str, "latin1")) {
ds->strenc = R_STRING_ENC_LATIN1;
} else if (!strcmp (strenc_str, "utf8")) {
ds->strenc = R_STRING_ENC_UTF8;
} else if (!strcmp (strenc_str, "utf16le")) {
ds->strenc = R_STRING_ENC_UTF16LE;
} else if (!strcmp (strenc_str, "utf32le")) {
ds->strenc = R_STRING_ENC_UTF32LE;
} else {
ds->strenc = R_STRING_ENC_GUESS;
}
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.cmt.right");
ds->show_comment_right = ds->show_comment_right_default;
ds->show_flag_in_bytes = r_config_get_i (core->config, "asm.flags.inbytes");
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 = DS_PRE_NONE;
ds->ocomment = NULL;
ds->linesopts = 0;
ds->lastfail = 0;
ds->ocols = 0;
ds->lcols = 0;
ds->printed_str_addr = UT64_MAX;
ds->printed_flag_addr = UT64_MAX;
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");
ds->min_ref_addr = r_config_get_i (core->config, "asm.var.submin");
if (ds->show_flag_in_bytes) {
ds->show_flags = 0;
}
if (r_config_get_i (core->config, "asm.lines.wide")) {
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_bb) {
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.lines.wide")) {
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_bb) {
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;
}
}
#if 0
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_bb) {
// 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;
}
}
#endif
static void ds_free(RDisasmState *ds) {
if (!ds) {
return;
}
if (ds->show_emu_stack) {
// TODO: destroy fake stack in here
eprintf ("Free fake stack\n");
if (ds->stackFd != -1) {
r_io_fd_close (ds->core->io, ds->stackFd);
}
}
r_asm_op_fini (&ds->asmop);
r_anal_op_fini (&ds->analop);
r_anal_hint_free (ds->hint);
ds_print_esil_anal_fini (ds);
ds_reflines_fini (ds);
ds_print_esil_anal_fini (ds);
sdb_free (ds->ssa);
free (ds->comment);
free (ds->line);
free (ds->refline);
free (ds->refline2);
free (ds->opstr);
free (ds->osl);
free (ds->sl);
free (ds->_tabsbuf);
R_FREE (ds);
}
/* XXX move to r_print */
static char *colorize_asm_string(RCore *core, RDisasmState *ds, bool print_color) {
char *spacer = NULL;
char *source = ds->opstr? ds->opstr: r_asm_op_get_asm (&ds->asmop);
char *hlstr = r_meta_get_string (ds->core->anal, R_META_TYPE_HIGHLIGHT, ds->at);
bool partial_reset = line_highlighted (ds) ? true : ((hlstr && *hlstr) ? true : false);
RAnalFunction *f = ds->show_color_args ? fcnIn (ds, ds->vat, R_ANAL_FCN_TYPE_NULL) : NULL;
if (!ds->show_color || !ds->colorop) {
return strdup (source);
}
if (print_color) {
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, f ? f->addr : 0);
free (s1);
scol2 = r_print_colorize_opcode (ds->core->print, s2, ds->color_reg, ds->color_num, partial_reset, f ? f->addr : 0);
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, f ? f->addr : 0);
}
static bool ds_must_strip(RDisasmState *ds) {
if (ds && ds->strip && *ds->strip) {
const char * optype = r_anal_optype_to_string (ds->analop.type);
if (optype && *optype) {
return strstr (ds->strip, optype);
}
}
return false;
}
static void ds_highlight_word(RDisasmState * ds, char *word, char *color) {
char *source = ds->opstr? ds->opstr: r_asm_op_get_asm (&ds->asmop);
const char *color_reset = line_highlighted (ds) ? ds->color_linehl : Color_RESET_BG;
char *asm_str = r_str_highlight (source, word, color, color_reset);
ds->opstr = asm_str? asm_str: source;
}
static char *get_op_ireg (void *user, ut64 addr) {
RCore *core = (RCore *)user;
char *res = NULL;
RAnalOp *op = r_core_anal_op (core, addr, 0);
if (op && op->ireg) {
res = strdup (op->ireg);
}
r_anal_op_free (op);
return res;
}
static void ds_build_op_str(RDisasmState *ds, bool print_color) {
RCore *core = ds->core;
if (!ds->opstr) {
ds->opstr = strdup (r_asm_op_get_asm (&ds->asmop));
}
/* 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 = fcnIn (ds, at, R_ANAL_FCN_TYPE_NULL);
core->parser->varlist = r_anal_var_list_dynamic;
core->parser->get_op_ireg = get_op_ireg;
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;
}
}
r_list_free (list);
}
}
char *asm_str = colorize_asm_string (core, ds, print_color);
asm_str = ds_sub_jumps (ds, asm_str);
if (ds->immtrim) {
char *res = r_parse_immtrim (ds->opstr);
if (res) {
ds->opstr = res;
}
free (asm_str);
return;
}
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) {
RSpace *ofs = core->parser->flagspace;
RSpace *fs = ds->flagspace_ports;
if (ds->analop.type == R_ANAL_OP_TYPE_IO) {
core->parser->notin_flagspace = NULL;
core->parser->flagspace = fs;
} else {
if (fs) {
core->parser->notin_flagspace = fs;
core->parser->flagspace = fs;
} else {
core->parser->notin_flagspace = NULL;
core->parser->flagspace = NULL;
}
}
if (ds->analop.refptr) {
if (core->parser->relsub_addr == 0) {
ut64 killme = UT64_MAX;
const int be = core->assembler->big_endian;
r_io_read_i (core->io, ds->analop.ptr, &killme, ds->analop.refptr, be);
core->parser->relsub_addr = killme;
}
}
r_parse_filter (core->parser, ds->vat, 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 && !core->fixedarch) {
if (!hint_arch) {
hint_arch = strdup (r_config_get (core->config, "asm.arch"));
}
r_config_set (core->config, "asm.arch", hint->arch);
}
/* syntax */
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);
}
if (hint->high) {
/* TODO: do something here */
}
}
return hint;
}
static void ds_pre_line(RDisasmState *ds) {
ds_setup_pre (ds, false, false);
ds_print_pre (ds);
char *tmp = ds->line;
ds->line = ds->refline2;
ds_print_lines_left (ds);
ds->line = tmp;
}
static void ds_begin_line(RDisasmState *ds) {
if (ds->pj) {
pj_o (ds->pj);
pj_kn (ds->pj, "offset", ds->vat);
pj_k (ds->pj, "text");
}
ds->buf_line_begin = r_cons_get_buffer_len ();
}
static void ds_newline(RDisasmState *ds) {
if (ds->pj) {
pj_s (ds->pj, r_cons_get_buffer ());
r_cons_reset ();
pj_end (ds->pj);
} else {
r_cons_newline ();
}
}
static void ds_show_refs(RDisasmState *ds) {
RAnalRef *ref;
RListIter *iter;
RFlagItem *flagi, *flagat;
if (!ds->show_cmtrefs) {
return;
}
RList *list = r_anal_xrefs_get_from (ds->core->anal, ds->at);
r_list_foreach (list, iter, ref) {
char *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)", flagi->name);
}
if (cmt) {
_ds_comment_align_ (ds, true, false);
ds_comment (ds, true, "; (%s)", cmt);
free (cmt);
}
if (ref->type & R_ANAL_REF_TYPE_CALL) {
RAnalOp aop;
ut8 buf[12];
r_io_read_at (ds->core->io, ref->at, buf, sizeof (buf));
r_anal_op (ds->core->anal, &aop, ref->at, buf, sizeof (buf), R_ANAL_OP_MASK_ALL);
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", fcn->name);
} else {
ds_comment (ds, true, "; 0x%" PFMT64x"", ref->addr);
}
}
}
ds_print_color_reset (ds);
}
r_list_free (list);
}
static void ds_show_xrefs(RDisasmState *ds) {
RAnalRef *refi;
RListIter *iter, *it;
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 */
RList *xrefs = r_anal_xrefs_get (core->anal, ds->at);
if (!xrefs) {
return;
}
if (r_list_length (xrefs) > ds->maxrefs) {
ds_begin_line (ds);
ds_pre_xrefs (ds, false);
ds_comment (ds, false, "%s; XREFS(%d)",
ds->show_color? ds->pal_comment: "",
r_list_length (xrefs));
if (ds->show_color) {
ds_print_color_reset (ds);
}
ds_newline (ds);
r_list_free (xrefs);
return;
} else if (r_list_length (xrefs) > ds->foldxrefs) {
int cols = r_cons_get_size (NULL);
cols -= 15;
cols /= 23;
cols = cols > 5 ? 5 : cols;
ds_begin_line (ds);
ds_pre_xrefs (ds, false);
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);
ds_newline (ds);
ds_begin_line (ds);
ds_pre_xrefs (ds, false);
ds_comment (ds, false, "%s; XREFS: ", ds->show_color? ds->pal_comment: "");
}
count = 0;
} else {
count++;
}
}
ds_print_color_reset (ds);
ds_newline (ds);
r_list_free (xrefs);
return;
}
RList *addrs = r_list_newf (free);
RAnalFunction *fun, *next_fun;
RFlagItem *f, *next_f;
r_list_foreach (xrefs, iter, refi) {
if (refi->at == ds->at) {
fun = fcnIn (ds, refi->addr, -1);
if (fun) {
if (iter != xrefs->tail) {
ut64 next_addr = ((RAnalRef *)(iter->n->data))->addr;
next_fun = r_anal_get_fcn_in (core->anal, next_addr, -1);
if (next_fun && next_fun->addr == fun->addr) {
r_list_append (addrs, r_num_dup (refi->addr));
continue;
}
}
name = strdup (fun->name);
r_list_append (addrs, r_num_dup (refi->addr));
} else {
f = r_flag_get_at (core->flags, refi->addr, true);
if (f) {
if (iter != xrefs->tail) {
ut64 next_addr = ((RAnalRef *)(iter->n->data))->addr;
next_f = r_flag_get_at (core->flags, next_addr, true);
if (next_f && f->offset == next_f->offset) {
r_list_append (addrs, r_num_dup (refi->addr - f->offset));
continue;
}
}
name = strdup (f->name);
r_list_append (addrs, r_num_dup (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_begin_line (ds);
ds_pre_xrefs (ds, false);
char* plural = r_list_length (addrs) > 1 ? "S" : "";
char* plus = fun ? "" : "+";
ds_comment (ds, false, "%s; %s XREF%s from %s (",
COLOR (ds, pal_comment), r_anal_xrefs_type_tostring (refi->type), plural, name);
ut64 *addrptr;
r_list_foreach (addrs, it, addrptr) {
if (addrptr && *addrptr) {
ds_comment (ds, false, "%s%s0x%"PFMT64x, it == addrs->head ? "" : ", ", plus, *addrptr);
}
}
ds_comment (ds, false, ")%s", COLOR_RESET (ds));
ds_newline (ds);
r_list_purge (addrs);
R_FREE (name);
} else {
eprintf ("Corrupted database?\n");
}
}
r_list_free (addrs);
r_list_free (xrefs);
}
static void ds_atabs_option(RDisasmState *ds) {
int n, i = 0, comma = 0, word = 0;
int brackets = 0;
char *t, *b;
if (!ds || !ds->atabs) {
return;
}
int bufasm_len = r_strbuf_length (&ds->asmop.buf_asm);
int size = bufasm_len * (ds->atabs + 1) * 4;
if (size < 1 || size < bufasm_len) {
return;
}
free (ds->opstr);
ds->opstr = b = malloc (size + 1);
if (!b) {
return;
}
strcpy (b, r_asm_op_get_asm (&ds->asmop));
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) {
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++) {
RFlagItem *fi = r_flag_get_i (core->flags, ds->at + i);
if (fi && fi->name) {
if (ds->midflags == 2 && ((fi->name[0] == '$') || (fi->realname && fi->realname[0] == '$'))) {
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) {
ds_begin_line (ds);
// this reloc is displayed already as a flag comment
// this is unnecessary imho
r_cons_printf ("(%s)", fi->name);
ds_newline (ds);
}
continue;
} else if (ds->midflags == R_MIDFLAGS_SYMALIGN) {
if (strncmp (fi->name, "sym.", 4)) {
continue;
}
}
ds->hasMidflag = true;
return i;
}
}
return 0;
}
static int handleMidBB(RCore *core, RDisasmState *ds) {
int i;
ds->hasMidbb = false;
r_return_val_if_fail (core->anal, 0);
// Unfortunately, can't just check the addr of the last insn byte since
// a bb (and fcn) can be as small as 1 byte, and advancing i based on
// bb->size is unsound if basic blocks can nest or overlap
for (i = 1; i < ds->oplen; i++) {
RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, ds->at + i, 0);
if (fcn) {
RAnalBlock *bb = r_anal_fcn_bbget_in (core->anal, fcn, ds->at + i);
if (bb && bb->addr > ds->at) {
ds->hasMidbb = true;
return bb->addr - ds->at;
}
}
}
return 0;
}
R_API int r_core_flag_in_middle(RCore *core, ut64 at, int oplen, int *midflags) {
r_return_val_if_fail (midflags, 0);
RDisasmState ds = {
.at = at,
.oplen = oplen,
.midflags = *midflags
};
int ret = handleMidFlags (core, &ds, true);
*midflags = ds.midflags;
return ret;
}
R_API int r_core_bb_starts_in_middle(RCore *core, ut64 at, int oplen) {
RDisasmState ds = {
.at = at,
.oplen = oplen
};
return handleMidBB (core, &ds);
}
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 (ds->midbb) {
(void)handleMidBB (core, ds);
}
if (p) {
res[0] = 'b';
}
if (ds->hasMidflag || ds->hasMidbb) {
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 void ds_pre_xrefs(RDisasmState *ds, bool no_fcnlines) {
ds_setup_pre (ds, false, false);
if (ds->pre != DS_PRE_NONE && ds->pre != DS_PRE_EMPTY) {
ds->pre = no_fcnlines ? DS_PRE_EMPTY : DS_PRE_FCN_MIDDLE;
}
ds_print_pre (ds);
char *tmp = ds->line;
ds->line = ds->refline2;
ds_print_lines_left (ds);
if (!ds->show_offset && ds->show_marks) {
ds_print_show_cursor (ds);
}
ds->line = tmp;
}
static void ds_begin_comment(RDisasmState *ds) {
if (ds->show_comment_right) {
_ALIGN;
} else {
ds_begin_line (ds);
ds_pre_xrefs (ds, 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 *pfx = is_var ? "var" : "arg", *constr = NULL;
RStrBuf *constr_buf = NULL;
bool cond = false;
if (ds->core && ds->core->anal) {
constr_buf = var_get_constraint (ds->core->anal, var);
if (constr_buf) {
constr = r_strbuf_get (constr_buf);
if (constr[0]) {
cond = true;
}
}
}
r_cons_printf ("%s%s %s%s%s%s %s%s%s%s@ %s%c0x%x", COLOR_ARG (ds, color_func_var), pfx,
COLOR_ARG (ds, color_func_var_type), var->type,
r_str_endswith (var->type, "*") ? "" : " ",
var->name, COLOR_ARG (ds, color_func_var_addr),
cond? " { ":"",
cond? constr: "",
cond? "} ":"",
base, sign, delta);
r_strbuf_free (constr_buf);
}
static void printVarSummary(RDisasmState *ds, RList *list) {
const char *numColor = ds->core->cons->context->pal.num;
RAnalVar *var;
RListIter *iter;
int bp_vars = 0;
int sp_vars = 0;
int rg_vars = 0;
int bp_args = 0;
int sp_args = 0;
int rg_args = 0;
const char *bp_vars_color = COLOR_RESET (ds);
const char *sp_vars_color = COLOR_RESET (ds);
const char *rg_vars_color = COLOR_RESET (ds);
const char *bp_args_color = COLOR_RESET (ds);
const char *sp_args_color = COLOR_RESET (ds);
const char *rg_args_color = COLOR_RESET (ds);
r_list_foreach (list, iter, var) {
if (var->isarg) {
switch (var->kind) {
case 'b':
bp_args++;
break;
case 's':
sp_args++;
break;
case 'r':
rg_args++;
break;
}
} else {
switch (var->kind) {
case 'b':
bp_vars++;
break;
case 's':
sp_vars++;
break;
case 'r':
rg_vars++;
break;
}
}
}
if (bp_vars) { bp_vars_color = numColor; }
if (sp_vars) { sp_vars_color = numColor; }
if (rg_vars) { rg_vars_color = numColor; }
if (bp_args) { bp_args_color = numColor; }
if (sp_args) { sp_args_color = numColor; }
if (rg_args) { rg_args_color = numColor; }
if (ds->show_varsum == 2) {
ds_begin_line (ds);
ds_print_pre (ds);
r_cons_printf ("vars: %s%d%s %s%d%s %s%d%s",
bp_vars_color, bp_vars, COLOR_RESET (ds),
sp_vars_color, sp_vars, COLOR_RESET (ds),
rg_vars_color, rg_vars, COLOR_RESET (ds));
ds_newline (ds);
ds_begin_line (ds);
ds_print_pre (ds);
r_cons_printf ("args: %s%d%s %s%d%s %s%d%s",
bp_args_color, bp_args, COLOR_RESET (ds),
sp_args_color, sp_args, COLOR_RESET (ds),
rg_args_color, rg_args, COLOR_RESET (ds));
ds_newline (ds);
return;
}
ds_begin_line (ds);
ds_print_pre (ds);
r_cons_printf ("bp: %s%d%s (vars %s%d%s, args %s%d%s)",
bp_args || bp_vars ? numColor : COLOR_RESET (ds), bp_args + bp_vars, COLOR_RESET (ds),
bp_vars_color, bp_vars, COLOR_RESET (ds),
bp_args_color, bp_args, COLOR_RESET (ds));
ds_newline (ds);
ds_begin_line (ds);
ds_print_pre (ds);
r_cons_printf ("sp: %s%d%s (vars %s%d%s, args %s%d%s)",
sp_args || sp_vars ? numColor : COLOR_RESET (ds), sp_args+sp_vars, COLOR_RESET (ds),
sp_vars_color, sp_vars, COLOR_RESET (ds),
sp_args_color, sp_args, COLOR_RESET (ds));
ds_newline (ds);
ds_begin_line (ds);
ds_print_pre (ds);
r_cons_printf ("rg: %s%d%s (vars %s%d%s, args %s%d%s)",
rg_args || rg_vars ? numColor : COLOR_RESET (ds), rg_args+rg_vars, COLOR_RESET (ds),
rg_vars_color, rg_vars, COLOR_RESET (ds),
rg_args_color, rg_args, COLOR_RESET (ds));
ds_newline (ds);
}
static void ds_show_functions(RDisasmState *ds) {
RAnalFunction *f;
RCore *core = ds->core;
char *fcn_name;
bool fcn_name_alloc = false; // whether fcn_name needs to be freed by this function
char *sign;
if (!ds->show_functions) {
return;
}
bool demangle = r_config_get_i (core->config, "bin.demangle");
bool call = r_config_get_i (core->config, "asm.calls");
const char *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_alloc = true;
} else {
fcn_name = f->name;
}
} else {
fcn_name = f->name;
}
ds_begin_line (ds);
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", COLOR (ds, color_floc),
fcn_name, COLOR_RESET (ds), r_anal_fcn_size (f));
} else {
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;
}
//ds_set_pre (ds, core->cons->vline[CORNER_TL]);
if (ds->show_lines_fcn) {
ds->pre = DS_PRE_FCN_HEAD;
}
ds_print_pre (ds);
if (ds->show_flgoff) {
ds_print_lines_left (ds);
ds_print_offset (ds);
}
r_cons_printf ("%s(%s) %s%s%s %d", COLOR (ds, color_fname),
fcntype, fcn_name, cmt, COLOR_RESET (ds), tmp_get_realsize (f));
}
ds_newline (ds);
if (sign) {
ds_begin_line (ds);
r_cons_printf ("// %s", sign);
ds_newline (ds);
}
R_FREE (sign);
if (ds->show_lines_fcn) {
ds->pre = DS_PRE_FCN_MIDDLE;
}
ds->stackptr = core->anal->stackptr;
RAnalFcnVarsCache vars_cache;
r_anal_fcn_vars_cache_init (core->anal, &vars_cache, f);
if (ds->show_vars && ds->show_varsum) {
RList *all_vars = vars_cache.bvars;
r_list_join (all_vars, vars_cache.svars);
r_list_join (all_vars, vars_cache.rvars);
printVarSummary (ds, all_vars);
} else if (ds->show_vars) {
char spaces[32];
RAnalVar *var;
RListIter *iter;
if (call) {
ds_begin_line (ds);
r_cons_print (COLOR (ds, color_fline));
ds_print_pre (ds);
r_cons_printf ("%s ", COLOR_RESET (ds));
char *sig = r_anal_fcn_format_sig (core->anal, f, fcn_name, &vars_cache, COLOR (ds, color_fname), COLOR_RESET (ds));
if (sig) {
r_cons_print (sig);
free (sig);
}
ds_newline (ds);
}
RList *all_vars = vars_cache.bvars;
r_list_join (all_vars, vars_cache.svars);
r_list_join (all_vars, vars_cache.rvars);
r_list_foreach (all_vars, iter, var) {
ds_begin_line (ds);
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_pre_xrefs (ds, false);
if (ds->show_flgoff) {
ds_print_offset (ds);
r_cons_printf (" ");
}
r_cons_printf ("%s; ", COLOR_ARG (ds, color_func_var));
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 ("%sarg %s%s%s%s %s@ %s", COLOR_ARG (ds, color_func_var),
COLOR_ARG (ds, color_func_var_type),
var->type, r_str_endswith (var->type, "*") ? "" : " ",
var->name, COLOR_ARG (ds, color_func_var_addr), i->name);
}
break;
case 's': {
bool is_var = !var->isarg;
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_print (COLOR_RESET (ds));
ds_newline (ds);
}
}
r_anal_fcn_vars_cache_fini (&vars_cache);
if (fcn_name_alloc) {
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) {
ds->cmtcount = 0;
if (!ds->show_functions || !ds->show_lines_fcn) {
ds->pre = DS_PRE_NONE;
return;
}
ds->pre = DS_PRE_EMPTY;
RAnalFunction *f = fcnIn (ds, 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->pre = DS_PRE_FCN_TAIL;
} else {
ds->pre = DS_PRE_FCN_MIDDLE;
}
} else if (f->addr + r_anal_fcn_size (f) - ds->analop.size == ds->at) {
ds->pre = DS_PRE_FCN_TAIL;
} else if (r_anal_fcn_is_in_offset (f, ds->at)) {
ds->pre = DS_PRE_FCN_MIDDLE;
}
if (tail) {
if (ds->pre == DS_PRE_FCN_TAIL) {
ds->pre = DS_PRE_EMPTY;
}
if (ds->pre == DS_PRE_FCN_MIDDLE) {
ds->pre = DS_PRE_FCN_TAIL;
}
}
}
}
static void ds_print_pre(RDisasmState *ds) {
RCore *core = ds->core;
const char *c = NULL;
switch(ds->pre) {
case DS_PRE_FCN_HEAD:
c = core->cons->vline[CORNER_TL];
break;
case DS_PRE_FCN_MIDDLE:
c = core->cons->vline[LINE_VERT];
break;
case DS_PRE_FCN_TAIL:
c = core->cons->vline[CORNER_BL];
break;
case DS_PRE_EMPTY:
r_cons_print (" ");
case DS_PRE_NONE:
default:
return;
}
r_cons_printf ("%s%s%s ",
COLOR (ds, color_fline), c,
COLOR_RESET (ds));
}
//XXX review this with asm.cmt.right
static void ds_show_comments_right(RDisasmState *ds) {
int linelen;
RCore *core = ds->core;
/* show comment at right? */
int scr = ds->show_comment_right;
if (!ds->show_comments && !ds->show_usercomments) {
return;
}
RFlagItem *item = r_flag_get_i (core->flags, ds->at);
char *comment = r_meta_get_string (core->anal, R_META_TYPE_COMMENT, ds->at);
char *vartype = r_meta_get_string (core->anal, R_META_TYPE_VARTYPE, ds->at);
if (!comment) {
if (vartype) {
ds->comment = r_str_newf ("%s; %s", COLOR_ARG (ds, color_func_var_type), vartype);
free (vartype);
} else if (item && item->comment && *item->comment) {
ds->ocomment = item->comment;
ds->comment = strdup (item->comment);
}
} else if (vartype) {
ds->comment = r_str_newf ("%s; %s %s%s; %s", COLOR_ARG (ds, color_func_var_type), vartype, Color_RESET, COLOR (ds, color_usrcmt), comment);
free (vartype);
free (comment);
} else {
ds->comment = r_str_newf ("%s; %s", COLOR_ARG (ds, color_usrcmt), comment);
free (comment);
}
#if 0
if (!ds->show_comments) {
return;
}
#endif
if (!ds->comment || !*ds->comment) {
return;
}
linelen = strlen (ds->comment) + 5;
if (ds->show_comment_right_default) {
if (ds->ocols + linelen < core->cons->columns) {
if (!strchr (ds->comment, '\n')) { // more than one line?
ds->show_comment_right = true;
}
}
}
if (!ds->show_comment_right) {
ds_begin_line (ds);
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_pre_xrefs (ds, false);
if (ds->show_color) {
r_cons_strcat (ds->color_usrcmt);
}
ds_comment (ds, false, "%s", ds->comment);
}
if (ds->show_color) {
ds_print_color_reset (ds);
}
R_FREE (ds->comment);
ds_newline (ds);
/* flag one */
if (item && item->comment && ds->ocomment != item->comment) {
ds_begin_line (ds);
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
ds_newline (ds);
ds_begin_line (ds);
r_cons_strcat (" ; ");
r_cons_strcat_justify (item->comment, mycols, ';');
ds_newline (ds);
if (ds->show_color) {
ds_print_color_reset (ds);
}
}
}
ds->show_comment_right = scr;
}
static int flagCmp(const void *a, const void *b) {
const RFlagItem *fa = a;
const RFlagItem *fb = b;
if (fa->realname && fb->realname) {
return strcmp (fa->realname, fb->realname);
}
return strcmp (fa->name, fb->name);
}
static void ds_show_flags(RDisasmState *ds) {
//const char *beginch;
RFlagItem *flag;
RListIter *iter;
RAnalFunction *f = NULL;
if (!ds->show_flags) {
return;
}
RCore *core = ds->core;
char addr[64];
ut64 switch_addr = UT64_MAX;
int case_start = -1, case_prev = 0, case_current = 0;
f = fcnIn (ds, ds->at, R_ANAL_FCN_TYPE_NULL);
const RList *flaglist = r_flag_get_list (core->flags, ds->at);
RList *uniqlist = flaglist? r_list_uniq (flaglist, flagCmp): NULL;
int count = 0;
r_list_foreach (uniqlist, 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;
}
bool no_fcn_lines = (f && f->addr == flag->offset);
if (ds->maxflags && count >= ds->maxflags) {
ds_pre_xrefs (ds, no_fcn_lines);
r_cons_printf ("...\n");
break;
}
count++;
if (!strncmp (flag->name, "case.", 5)) {
sscanf (flag->name + 5, "%63[^.].%d", addr, &case_current);
ut64 saddr = r_num_math (core->num, addr);
if (case_start == -1) {
switch_addr = saddr;
case_prev = case_current;
case_start = case_current;
if (iter != uniqlist->tail) {
continue;
}
}
if (case_current == case_prev + 1 && switch_addr == saddr) {
case_prev = case_current;
continue;
}
}
ds_begin_line (ds);
bool fake_flag_marks = (!ds->show_offset && ds->show_marks);
if (ds->show_flgoff) {
ds_pre_line (ds);
ds_print_offset (ds);
if (!fake_flag_marks) {
r_cons_printf (" ");
}
} else {
ds_pre_xrefs (ds, no_fcn_lines);
}
if (ds->show_color) {
bool hasColor = false;
if (flag->color) {
char *color = r_cons_pal_parse (flag->color, NULL);
if (color) {
r_cons_strcat (color);
free (color);
ds->lastflag = flag;
hasColor = true;
}
}
if (!hasColor) {
r_cons_strcat (ds->color_flag);
}
}
if (!ds->show_flgoff || fake_flag_marks) {
r_cons_printf (";-- ");
}
if (ds->asm_demangle && flag->realname) {
if (!strncmp (flag->name, "case.", 5)) {
if (!strncmp (flag->name + 5, "default", 7)) {
r_cons_printf ("%s:", flag->name);
} else if (case_prev != case_start) {
r_cons_printf ("cases %d...%d (%s):", case_start, case_prev, addr);
if (iter != uniqlist->head) {
iter = iter->p;
}
case_start = case_current;
} else {
r_cons_printf ("case %d (%s):", case_prev, addr);
case_start = -1;
}
case_prev = case_current;
} else {
const char *lang = r_config_get (core->config, "bin.lang");
char *name = r_bin_demangle (core->bin->cur, lang, flag->realname, flag->offset);
if (!name) {
const char *n = flag->realname? flag->realname: flag->name;
if (n) {
name = strdup (n);
}
}
if (name) {
r_str_ansi_filter (name, NULL, NULL, -1);
r_cons_printf ("%s:", name);
R_FREE (name);
}
}
} else {
r_cons_printf ("%s:", flag->name);
}
if (ds->show_color) {
r_cons_strcat (Color_RESET);
}
ds_newline (ds);
}
r_list_free (uniqlist);
}
static void ds_update_ref_lines(RDisasmState *ds) {
if (ds->show_lines_bb) {
free (ds->line);
ds->line = r_anal_reflines_str (ds->core, ds->at, ds->linesopts);
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_BEFORE);
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;
}
r_asm_op_fini (&ds->asmop);
ret = r_asm_disassemble (core->assembler, &ds->asmop, buf, len);
if (ds->asmop.size < 1) {
ds->asmop.size = 1;
}
// handle meta here //
if (!ds->asm_meta) {
int i = 0;
// TODO: do in range
RAnalMetaItem *meta = r_meta_find_in (core->anal, ds->at, R_META_TYPE_ANY, R_META_WHERE_HERE);
if (meta && meta->size > 0) {
// XXX this is just noise. should be rewritten
switch (meta->type) {
case R_META_TYPE_DATA:
if (meta->str) {
r_cons_printf (".data: %s\n", meta->str);
}
i += meta->size;
break;
case R_META_TYPE_STRING:
i += meta->size;
break;
case R_META_TYPE_FORMAT:
r_cons_printf (".format : %s\n", meta->str);
i += meta->size;
break;
case R_META_TYPE_MAGIC:
r_cons_printf (".magic : %s\n", meta->str);
i += meta->size;
break;
case R_META_TYPE_RUN:
r_core_cmd0 (core, meta->str);
break;
}
int sz = R_MIN (16, meta->size - (ds->at - meta->from));
ds->asmop.size = sz;
r_asm_op_set_hexbuf (&ds->asmop, buf, sz);
switch (meta->type) {
case R_META_TYPE_STRING:
r_asm_op_set_asm (&ds->asmop, sdb_fmt (".string \"%s\"", meta->str));
break;
// case R_META_TYPE_DATA:
// break;
default:
r_asm_op_set_asm (&ds->asmop, sdb_fmt (".hex %s", r_asm_op_get_hex (&ds->asmop)));
break;
}
ds->oplen = sz; //ds->asmop.size;
return i;
}
}
if (ds->show_nodup) {
const char *opname = (ret < 1)? "invalid": r_asm_op_get_asm (&ds->asmop);
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 (r_asm_op_get_asm (&ds->asmop));
}
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
: r_asm_op_get_asm (&ds->asmop),
ds->str);
free (ds->opstr);
ds->opstr = strdup (ds->str);
}
if (ds->acase) {
r_str_case (r_asm_op_get_asm (&ds->asmop), 1);
} else if (ds->capitalize) {
char *ba = r_asm_op_get_asm (&ds->asmop);
*ba = toupper ((ut8)*ba);
}
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;
if (ds->asm_anal) {
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_CALL:
r_core_cmdf (ds->core, "af @ 0x%"PFMT64x, ds->analop.jump);
break;
}
}
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_bb && 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);
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 *str = NULL;
if (ds->show_section_perm) {
// iosections must die, this should be rbin_section_get
RIOMap *map = r_io_map_get (core->io, ds->at);
str = strdup (map? r_str_rwx_i (map->perm): "---");
}
if (ds->show_section_name) {
str = r_str_appendf (str, " %s", get_section_name (core, ds->at));
}
char *sect = str? str: strdup ("");
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->line) {
if (ds->show_color) {
if (!ds->linesright && ds->show_lines_bb) {
r_cons_printf ("%s%s%s", COLOR (ds, color_flow), ds->line, COLOR_RESET (ds));
}
} else {
r_cons_printf ("%s", ds->line);
}
}
}
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? 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_update_stackptr(RDisasmState *ds, RAnalOp *op) {
//ds->stackptr = ds->core->anal->stackptr;
ds->ostackptr = ds->stackptr;
switch (op->stackop) {
case R_ANAL_STACK_RESET:
ds->stackptr = 0;
break;
case R_ANAL_STACK_SET:
ds->stackptr = op->stackptr;
break;
case R_ANAL_STACK_INC:
ds->stackptr += op->stackptr;
break;
default:
/* nothing to do here */
break;
}
/* XXX if we reset the stackptr 'ret 0x4' has not effect.
* Use RAnalFunction->RAnalOp->stackptr? */
if (op->type == R_ANAL_OP_TYPE_RET) {
ds->stackptr = 0;
}
// ds->ostackptr = ds->stackptr;
//ds->core->anal->stackptr = ds->stackptr;
}
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_update_stackptr (ds, &ds->analop);
}
}
static void ds_print_offset(RDisasmState *ds) {
RCore *core = ds->core;
ut64 at = ds->vat;
bool hasCustomColor = false;
// probably tooslow
RFlagItem *f = r_flag_get_at (core->flags, at, 1);
if (ds->show_color && f) { // ds->lastflag) {
const char *color = f->color;
if (ds->at >= f->offset && ds->at < f->offset + f->size) {
// if (r_itv_inrange (f->itv, ds->at))
if (color && *color) {
char *k = r_cons_pal_parse (f->color, NULL);
if (k) {
r_cons_printf ("%s", k);
hasCustomColor = true;
free (k);
}
}
}
}
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;
unsigned int seggrn = r_config_get_i (core->config, "asm.seggrn");
if (ds->show_reloff) {
RAnalFunction *f = r_anal_get_fcn_at (core->anal, at, R_ANAL_FCN_TYPE_NULL);
if (!f) {
f = fcnIn (ds, at, R_ANAL_FCN_TYPE_NULL); // 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 = r_debug_trace_get (ds->core->dbg, ds->at);
show_trace = (tp? !!tp->count: false);
}
if (ds->hint && ds->hint->high) {
show_trace = true;
}
if (hasCustomColor) {
int of = core->print->flags;
core->print->flags = 0;
r_print_offset_sg (core->print, at, (at == ds->dest) || show_trace,
ds->show_offseg, seggrn, ds->show_offdec, delta, label);
core->print->flags = of;
r_cons_strcat (Color_RESET);
} else {
r_print_offset_sg (core->print, at, (at == ds->dest) || show_trace,
ds->show_offseg, seggrn, ds->show_offdec, delta, label);
}
}
if (ds->atabsoff > 0 && ds->show_offset) {
if (ds->_tabsoff != ds->atabsoff) {
// TODO optimize to avoid down resizing
char *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 3: type = "htons"; break;
case 4: type = isSigned? ".int32": ".dword"; break;
case 8: type = isSigned? ".int64": ".qword"; break;
default: return false;
}
if (!ds->hinted_line) {
r_cons_printf (" ");
}
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 (" ");
}
}
r_cons_strcat (ds->color_mov);
switch (ib) {
case 1:
r_str_bits (msg, buf, size * 8, NULL);
r_cons_printf ("%s %sb", type, msg);
break;
case 3:
r_cons_printf ("%s %d", type, ntohs (n & 0xFFFF));
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--;
}
}
}
if (n >= ds->min_ref_addr) {
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;
if (!ds->asm_meta) {
return 0;
}
snprintf (key, sizeof (key), "meta.0x%" PFMT64x, ds->at);
infos = sdb_const_get (s, key, 0);
ds->mi_found = false;
if (infos) {
for (; *infos; infos++) {
if (*infos == ',') {
continue;
}
snprintf (key, sizeof (key), "meta.%c.0x%" PFMT64x, *infos, ds->at);
metas = sdb_const_get (s, key, 0);
if (!metas) {
continue;
}
if (!r_meta_deserialize_val (core->anal, mi, *infos, ds->at, metas)) {
continue;
}
// 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:
{
bool esc_bslash = core->print->esc_bslash;
switch (mi->subtype) {
case R_STRING_ENC_UTF8:
out = r_str_escape_utf8 (mi->str, false, esc_bslash);
break;
case 0: /* temporary legacy workaround */
esc_bslash = false;
/* fallthrough */
default:
out = r_str_escape_latin1 (mi->str, false, esc_bslash, false);
}
if (!out) {
break;
}
r_cons_printf (" .string %s\"%s\"%s ; len=%"PFMT64d,
COLOR (ds, color_btext), 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 ("(%"PFMT64d" 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;
// TODO do not pass a copy in parameter buf that is possibly to small for this
// print operation
int size = R_MIN (mi->size, len - idx);
if (!ds_print_data_type (ds, buf + idx, ds->hint? ds->hint->immbase: 0, size)) {
r_cons_printf ("hex length=%" PFMT64d " delta=%d\n", 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;
}
}
R_FREE (MI.str);
}
}
return ret;
}
static void ds_instruction_mov_lea(RDisasmState *ds, int idx) {
RCore *core = ds->core;
RAnalValue *src;
const int addrbytes = core->io->addrbytes;
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 && 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 = addrbytes * idx + ds->addr + src->delta + ds->analop.size;
ut64 off = 0LL;
r_io_read_at (core->io, 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: "");
if (ds->asm_anal) {
if (r_io_is_valid_offset (core->io, off, 0)) {
r_anal_xrefs_set (core->anal, off, ds->addr, R_ANAL_REF_TYPE_DATA);
}
}
}
}
}
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_io_read_at (core->io, ptr, b, sizeof (b)); //memref);
off = r_mem_get_num (b, memref);
item = r_flag_get_i (core->flags, off);
if (ds->asm_hint_lea) {
char s[64];
r_str_ncpy (s, (const char *)b, sizeof (s));
r_str_filter (s, -1);
ds_begin_comment (ds);
ds_comment (ds, true, "; LEA %s = [0x%"PFMT64x"] = 0x%"PFMT64x" \"%s\"",
dst->reg->name, ptr, off, item?item->name: s);
if (ds->asm_anal) {
if (r_io_is_valid_offset (core->io, off, 0)) {
r_anal_xrefs_set (core->anal, ptr, ds->addr, R_ANAL_REF_TYPE_DATA);
}
}
}
}
}
}
}
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->asm_hints || !ds->asm_hint_cdiv) {
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) {
str[ds->nb - 1] = '\0';
}
if (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 (r_asm_op_get_hex (&ds->asmop));
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);
f = fcnIn (ds, ds->at, 0);
}
label = r_anal_fcn_label_at (core->anal, f, ds->at);
if (!label) {
return false;
}
ds_pre_line (ds);
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;
}
#if 0
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);
}
}
}
}
}
#endif
static void ds_print_sysregs(RDisasmState *ds) {
RCore *core = ds->core;
if (!ds->show_comments) {
return;
}
switch (ds->analop.type) {
// Syscalls first
case R_ANAL_OP_TYPE_IO:
{
const int imm = (int)ds->analop.val;
RSyscall *sc = core->anal->syscall;
const char *ioname = r_syscall_get_io (sc, imm);
if (ioname && *ioname) {
_ALIGN;
ds_comment (ds, true, "; IO %s", ioname);
ds->has_description = true;
}
}
break;
// Then sysregs
case R_ANAL_OP_TYPE_MOV:
case R_ANAL_OP_TYPE_LEA:
case R_ANAL_OP_TYPE_LOAD:
case R_ANAL_OP_TYPE_STORE:
{
const int imm = (int)ds->analop.ptr;
const char *sr = r_syscall_sysreg (core->anal->syscall, "reg", imm);
if (sr) {
_ALIGN;
ds_comment (ds, true, "; REG %s - %s", sr, "");
// TODO: add register description description
ds->has_description = true;
}
}
break;
}
}
static void ds_print_fcn_name(RDisasmState *ds) {
int delta;
const char *label;
RAnalFunction *f;
RCore *core = ds->core;
if (!ds->show_comments) {
return;
}
switch (ds->analop.type) {
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);
f = fcnIn (ds, ds->analop.jump, R_ANAL_FCN_TYPE_NULL);
if (f && f->name && ds->opstr && !strstr (ds->opstr, f->name)) {
// print label
delta = ds->analop.jump - f->addr;
label = r_anal_fcn_label_at (core->anal, f, ds->analop.jump);
if (!ds->show_comment_right) {
ds_begin_line (ds);
}
if (label) {
_ALIGN;
ds_comment (ds, true, "; %s.%s", f->name, label);
} else {
RAnalFunction *f2 = fcnIn (ds, ds->at, 0); //r_anal_get_fcn_in (core->anal, ds->at, 0);
if (f != f2) {
_ALIGN;
if (delta > 0) {
ds_comment (ds, true, "; %s+0x%x", f->name, delta);
} else if (delta < 0) {
ds_comment (ds, true, "; %s-0x%x", f->name, -delta);
} else {
ds_comment (ds, true, "; %s", f->name);
}
}
}
}
break;
}
}
static int ds_print_shortcut(RDisasmState *ds, ut64 addr, int pos) {
char *shortcut = r_core_add_asmqjmp (ds->core, addr);
int slen = shortcut? strlen (shortcut): 0;
if (!pos && !shortcut) {
//r_cons_printf (" ");
//return 0;
}
if (pos) {
ds_align_comment (ds);
}
const char *ch = pos? ";": "";
if (ds->show_color) {
r_cons_strcat (ds->pal_comment);
}
if (*ch) {
slen++;
}
if (shortcut) {
if (ds->core->is_asmqjmps_letter) {
r_cons_printf ("%s[g%s]", ch, shortcut);
slen++;
} else {
r_cons_printf ("%s[%s]", ch, shortcut);
}
free (shortcut);
} else {
r_cons_printf ("%s[?]", ch);
}
if (ds->show_color) {
if (ds->core->print->resetbg) {
r_cons_strcat (Color_RESET);
} else {
r_cons_strcat (Color_RESET_NOBG);
}
}
slen++;
return slen;
}
static bool ds_print_core_vmode_jump_hit(RDisasmState *ds, int pos) {
RCore *core = ds->core;
RAnal *a = core->anal;
RAnalHint *hint = r_anal_hint_get (a, ds->at);
if (hint) {
if (hint->jump != UT64_MAX) {
ds_print_shortcut (ds, hint->jump, pos);
}
r_anal_hint_free (hint);
return true;
}
return false;
}
static void getPtr(RDisasmState *ds, ut64 addr, int pos) {
ut8 buf[sizeof (ut64)] = {0};
r_io_read_at (ds->core->io, addr, buf, sizeof (buf));
if (ds->core->assembler->bits == 64) {
ut64 n64 = r_read_ble64 (buf, 0);
ds_print_shortcut (ds, n64, pos);
} else {
ut32 n32 = r_read_ble32 (buf, 0);
ds_print_shortcut (ds, n32, pos);
}
}
static void ds_print_core_vmode(RDisasmState *ds, int pos) {
RCore *core = ds->core;
bool gotShortcut = false;
int i, slen = 0;
if (!core->vmode) {
return;
}
if (!ds->asm_hints) {
return;
}
if (ds->asm_hint_lea) {
RAnalMetaItem *mi = r_meta_find (ds->core->anal, ds->at, R_META_TYPE_ANY, R_META_WHERE_HERE);
if (mi && mi->from) {
int obits = ds->core->assembler->bits;
ds->core->assembler->bits = mi->size * 8;
getPtr (ds, mi->from, pos);
ds->core->assembler->bits = obits;
gotShortcut = true;
}
}
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_UJMP:
case R_ANAL_OP_TYPE_UJMP | R_ANAL_OP_TYPE_IND:
case R_ANAL_OP_TYPE_UJMP | R_ANAL_OP_TYPE_IND | R_ANAL_OP_TYPE_COND:
case R_ANAL_OP_TYPE_UJMP | R_ANAL_OP_TYPE_IND | R_ANAL_OP_TYPE_REG:
if (ds->asm_hint_lea) {
if (ds->analop.ptr != UT64_MAX && ds->analop.ptr != UT32_MAX) {
getPtr (ds, ds->analop.ptr, pos);
gotShortcut = true;
}
}
break;
case R_ANAL_OP_TYPE_MOV:
case R_ANAL_OP_TYPE_LEA:
case R_ANAL_OP_TYPE_LOAD:
if (ds->asm_hint_lea) {
if (ds->analop.ptr != UT64_MAX && ds->analop.ptr != UT32_MAX && ds->analop.ptr > 256) {
slen = ds_print_shortcut (ds, ds->analop.ptr, pos);
gotShortcut = true;
}
}
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:
#if 0
if (ds->analop.jump == 0 && ds->analop.ptr) {
ut8 buf[sizeof(ut64)] = {0};
r_io_read_at (core->io, ds->analop.ptr, buf, sizeof (buf));
ut32 n32 = r_read_ble32 (buf, 0);
// is valid address
// ut32 n64 = r_read_ble32 (buf, 0);
ds_print_shortcut (ds, n32, pos);
} else {
// ds_print_shortcut (ds, ds->analop.jump, pos);
ds_print_shortcut (ds, ds->analop.ptr, pos);
}
#endif
if (ds->asm_hint_jmp) {
if (ds->analop.jump != UT64_MAX) {
slen = ds_print_shortcut (ds, ds->analop.jump, pos);
} else {
slen = ds_print_shortcut (ds, ds->analop.ptr, pos);
}
gotShortcut = true;
}
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:
if (ds->asm_hint_jmp) {
slen = ds_print_shortcut (ds, ds->analop.jump, pos);
gotShortcut = true;
}
break;
default:
if (ds_print_core_vmode_jump_hit (ds, pos)) {
gotShortcut = true;
}
break;
}
int begin = (gotShortcut) ? (ds->asm_hint_pos == 0)? 1: 2: 3;
for (i = begin - slen; i > 0; i--) {
r_cons_strcat (" ");
}
ds->hinted_line = gotShortcut;
}
// align for comment
static void ds_align_comment(RDisasmState *ds) {
if (!ds->show_comment_right_default) {
return;
}
const int cmtcol = ds->cmtcol - 1;
const char *ll = r_cons_get_buffer ();
if (!ll) {
return;
}
ll += ds->buf_line_begin;
int cells = r_str_len_utf8_ansi (ll);
int 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_trim (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_varaccess) {
// 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 byte(s)", 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]);
}
}
}
}
/* Do not use this function for escaping JSON! */
static char *ds_esc_str(RDisasmState *ds, const char *str, int len, const char **prefix_out, bool is_comment) {
int str_len;
char *escstr = NULL;
const char *prefix = "";
bool esc_bslash = ds->core->print->esc_bslash;
switch (ds->strenc) {
case R_STRING_ENC_LATIN1:
escstr = r_str_escape_latin1 (str, ds->show_asciidot, esc_bslash, is_comment);
break;
case R_STRING_ENC_UTF8:
escstr = r_str_escape_utf8 (str, ds->show_asciidot, esc_bslash);
break;
case R_STRING_ENC_UTF16LE:
escstr = r_str_escape_utf16le (str, len, ds->show_asciidot, esc_bslash);
prefix = "u";
break;
case R_STRING_ENC_UTF32LE:
escstr = r_str_escape_utf32le (str, len, ds->show_asciidot, esc_bslash);
prefix = "U";
break;
default:
str_len = strlen (str);
if ((str_len == 1 && len > 3 && str[2] && !str[3])
|| (str_len == 3 && len > 5 && !memcmp (str, "\xff\xfe", 2) && str[4] && !str[5])) {
escstr = r_str_escape_utf16le (str, len, ds->show_asciidot, esc_bslash);
prefix = "u";
} else if (str_len == 1 && len > 7 && !str[2] && !str[3] && str[4] && !str[5]) {
RStrEnc enc = R_STRING_ENC_UTF32LE;
RRune ch;
const char *ptr, *end;
end = (const char *)r_mem_mem_aligned ((ut8 *)str, len, (ut8 *)"\0\0\0\0", 4, 4);
if (!end) {
end = str + len - 1;
}
for (ptr = str; ptr < end; ptr += 4) {
if (r_utf32le_decode ((ut8 *)ptr, end - ptr, &ch) > 0 && ch > 0x10ffff) {
enc = R_STRING_ENC_LATIN1;
break;
}
}
if (enc == R_STRING_ENC_UTF32LE) {
escstr = r_str_escape_utf32le (str, len, ds->show_asciidot, esc_bslash);
prefix = "U";
} else {
escstr = r_str_escape_latin1 (str, ds->show_asciidot, esc_bslash, is_comment);
}
} else {
RStrEnc enc = R_STRING_ENC_LATIN1;
const char *ptr = str, *end = str + str_len;
for (; ptr < end; ptr++) {
if (r_utf8_decode ((ut8 *)ptr, end - ptr, NULL) > 1) {
enc = R_STRING_ENC_UTF8;
break;
}
}
escstr = (enc == R_STRING_ENC_UTF8 ?
r_str_escape_utf8 (str, ds->show_asciidot, esc_bslash) :
r_str_escape_latin1 (str, ds->show_asciidot, esc_bslash, is_comment));
}
}
if (prefix_out) {
*prefix_out = prefix;
}
return escstr;
}
static void ds_print_str(RDisasmState *ds, const char *str, int len, ut64 refaddr) {
if (ds->core->flags->realnames || !r_bin_string_filter (ds->core->bin, str, refaddr)) {
return;
}
const char *prefix;
char *escstr = ds_esc_str (ds, str, len, &prefix, false);
if (escstr) {
bool inv = ds->show_color && !ds->show_emu_strinv;
ds_begin_comment (ds);
ds_comment (ds, true, "; %s%s\"%s\"%s", inv ? Color_INVERT : "", prefix, escstr,
inv ? Color_INVERT_RESET : "");
ds->printed_str_addr = refaddr;
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;
bool aligned = false;
int refptr = ds->analop.refptr;
RFlagItem *f = NULL, *f2 = NULL;
bool f2_in_opstr = false; /* Also if true, f exists */
if (!ds->show_comments || !ds->show_slow) {
return;
}
ds->chref = 0;
if ((char)v > 0 && v >= '!') {
ds->chref = (char)v;
if (ds->immstr) {
char *str = r_str_from_ut64 (r_read_ble64 (&v, core->print->big_endian));
if (str && *str) {
const char *ptr = str;
bool printable = true;
for (; *ptr; ptr++) {
if (!IS_PRINTABLE (*ptr)) {
printable = false;
break;
}
}
if (r_flag_get_i (core->flags, v)) {
printable = false;
}
if (printable) {
ds_begin_comment (ds);
ds_comment (ds, true, "; '%s'", str);
}
}
free (str);
} else {
if ((char)v > 0 && v >= '!' && v <= '~') {
ds_begin_comment (ds);
aligned = true;
ds_comment (ds, true, "; '%c'", (char)v);
}
}
}
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;
}
}
}
r_list_free (list);
if (ds->analop.type == (R_ANAL_OP_TYPE_MOV | R_ANAL_OP_TYPE_REG)
&& ds->analop.stackop == R_ANAL_STACK_SET
&& ds->analop.val != UT64_MAX && ds->analop.val > 10) {
const char *arch = r_config_get (core->config, "asm.arch");
if (arch && !strcmp (arch, "x86")) {
p = refaddr = ds->analop.val;
refptr = 0;
}
}
bool flag_printed = false;
bool refaddr_printed = false;
bool string_printed = false;
if (refaddr == 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) {
ut64 relsub_addr = core->parser->relsub_addr;
if (relsub_addr && relsub_addr != p) {
f2 = r_flag_get_i2 (core->flags, relsub_addr);
if (!f2) {
f2 = r_flag_get_i (core->flags, relsub_addr);
}
f2_in_opstr = f2 && ds->opstr && strstr (ds->opstr, f2->name);
}
refaddr = p;
if (!flag_printed && !is_filtered_flag (ds, f->name)
&& (!ds->opstr || !strstr (ds->opstr, f->name))
&& !f2_in_opstr) {
ds_begin_comment (ds);
ds_comment (ds, true, "; %s", f->name);
ds->printed_flag_addr = p;
flag_printed = true;
}
}
}
r_io_read_at (core->io, refaddr, (ut8*)msg, len - 1);
if (refptr) {
ut64 num = r_read_ble (msg, core->print->big_endian, 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), ds->analop.ptr);
string_printed = true;
}
}
} else {
if (n == UT32_MAX || n == UT64_MAX) {
ds_begin_comment (ds);
ds_comment (ds, true, "; [0x%" PFMT64x":%d]=-1",
refaddr, refptr);
} else if (n == n32 && (n32 > -512 && n32 < 512)) {
ds_begin_comment (ds);
ds_comment (ds, true, "; [0x%" PFMT64x
":%d]=%"PFMT64d, refaddr, refptr, n);
} else {
const char *kind, *flag = "";
char *msg2 = NULL;
RFlagItem *f2_ = r_flag_get_i (core->flags, n);
if (f2_) {
flag = f2_->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;
}
}
}
ds_begin_comment (ds);
{
const char *refptrstr = "";
if (core->print->flags & R_PRINT_FLAGS_SECSUB) {
RBinObject *bo = r_bin_cur_object (core->bin);
RBinSection *s = bo? r_bin_get_section_at (bo, n, core->io->va): NULL;
if (s) {
refptrstr = s->name;
}
}
ds_comment_start (ds, "; [");
if (f && f2_in_opstr) {
ds_comment_middle (ds, "%s", f->name);
flag_printed = true;
} else {
ds_comment_middle (ds, "0x%" PFMT64x, refaddr);
}
ds_comment_end (ds, ":%d]=%s%s0x%" PFMT64x "%s%s",
refptr, refptrstr, *refptrstr ? "." : "",
n, (flag && *flag) ? " " : "", flag);
}
free (msg2);
}
refaddr_printed = true;
}
}
if (!strcmp (ds->show_cmtoff, "true")) {
ds_begin_comment (ds);
ds_comment (ds, true, "; 0x%" PFMT64x, refaddr);
refaddr_printed = true;
} else if (!refaddr_printed && strcmp (ds->show_cmtoff, "false")) {
char addrstr[32] = {0};
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) {
if (!aligned) {
ds_begin_comment (ds);
}
ds_comment (ds, true, "; 0x%" PFMT64x, refaddr);
refaddr_printed = true;
}
}
}
}
#if 1
if (!(IS_PRINTABLE (*msg) || IS_WHITECHAR (*msg)
|| (len > 1 && !memcmp (msg, "\xff\xfe", 2)))) {
*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, refaddr);
string_printed = true;
}
} else if (!flag_printed && (!ds->opstr || !strstr (ds->opstr, f->name))) {
ds_begin_comment (ds);
ds_comment (ds, true, "; %s", f->name);
ds->printed_flag_addr = refaddr;
flag_printed = true;
}
} else {
if (refaddr == UT64_MAX || refaddr == UT32_MAX) {
ds_begin_comment (ds);
ds_comment (ds, true, "; -1");
} else if (((char)refaddr > 0) && refaddr >= '!' && refaddr <= '~') {
char ch = refaddr;
if (ch != ds->chref) {
ds_begin_comment (ds);
ds_comment (ds, true, "; '%c'", ch);
}
} 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);
ds_begin_comment (ds);
if (v) {
ds_comment (ds, true, "; var %s", v->name);
r_anal_var_free (v);
} else {
ds_comment (ds, true, "; var %d", -(int)refaddr);
}
} else {
if (r_core_anal_address (core, refaddr) & R_ANAL_ADDR_TYPE_ASCII) {
if (!string_printed && *msg) {
ds_print_str (ds, msg, len, refaddr);
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, refaddr);
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) {
if (!aligned) {
ds_begin_comment (ds);
}
ds_comment (ds, true, "; %"PFMT64d, p);
}
}
} else {
// r_cons_printf (" ; %s", kind);
}
// TODO: check for more data kinds
}
}
free (msg);
} else {
ds_print_as_string (ds);
}
#if 0
if (!ds->show_comment_right && ds->cmtcount > 0) {
ds_newline (ds);
}
#endif
#if DEADCODE
if (aligned && ds->show_color) {
r_cons_printf (Color_RESET);
}
#endif
}
struct getreloc_t {
ut64 vaddr;
int size;
};
static int getreloc_tree(const void *user, const RBNode *n) {
struct getreloc_t *gr = (struct getreloc_t *)user;
const RBinReloc *r = container_of (n, const RBinReloc, vrb);
if ((r->vaddr >= gr->vaddr) && (r->vaddr < (gr->vaddr + gr->size))) {
return 0;
}
if (gr->vaddr > r->vaddr) {
return 1;
}
if (gr->vaddr < r->vaddr) {
return -1;
}
return 0;
}
// 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) {
if (size < 1 || addr == UT64_MAX) {
return NULL;
}
RBNode *relocs = r_bin_get_relocs (core->bin);
if (!relocs) {
return NULL;
}
struct getreloc_t gr = { .vaddr = addr, .size = size };
RBNode *res = r_rbtree_find (relocs, &gr, getreloc_tree);
return res? container_of (res, RBinReloc, vrb): NULL;
}
static void ds_print_relocs(RDisasmState *ds) {
char *demname = NULL;
if (!ds->showrelocs || !ds->show_slow) {
return;
}
RCore *core = ds->core;
const char *lang = r_config_get (core->config, "bin.lang");
bool demangle = r_config_get_i (core->config, "asm.demangle");
RBinReloc *rel = getreloc (core, ds->at, ds->analop.size);
if (rel) {
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 = ds->cmtcol - cells;
r_cons_memset (' ', len);
if (rel->import) {
if (demangle) {
demname = r_bin_demangle (core->bin->cur, lang, rel->import->name, rel->vaddr);
}
r_cons_printf ("; RELOC %d %s", rel->type, demname ? demname : rel->import->name);
} else if (rel->symbol) {
if (demangle) {
demname = r_bin_demangle (core->bin->cur, lang, rel->symbol->name, rel->symbol->vaddr);
}
r_cons_printf ("; RELOC %d %s @ 0x%08" PFMT64x " + 0x%" PFMT64x,
rel->type, demname ? demname : rel->symbol->name,
rel->symbol->vaddr, rel->addend);
} else {
r_cons_printf ("; RELOC %d ", rel->type);
}
free (demname);
}
}
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 mymemwrite2(RAnalEsil *esil, ut64 addr, const ut8 *buf, int len) {
return (addr >= emustack_min && addr < emustack_max);
}
static char *ssa_get(RAnalEsil *esil, const char *reg) {
RDisasmState *ds = esil->user;
if (isdigit (*reg)) {
return strdup (reg);
}
if (!ds->ssa) {
ds->ssa = sdb_new0 ();
}
int n = sdb_num_get (ds->ssa, reg, NULL);
return r_str_newf ("%s_%d", reg, n);
}
static void ssa_set(RAnalEsil *esil, const char *reg) {
RDisasmState *ds = esil->user;
(void)sdb_num_inc (ds->ssa, reg, 1, 0);
}
#define R_DISASM_MAX_STR 512
static int myregread(RAnalEsil *esil, const char *name, ut64 *res, int *size) {
RDisasmState *ds = esil->user;
if (ds && ds->show_emu_ssa) {
if (!isdigit (*name)) {
char *r = ssa_get (esil, name);
ds_comment_esil (ds, true, false, "<%s", r);
free (r);
}
}
return 0;
}
static int myregwrite(RAnalEsil *esil, const char *name, ut64 *val) {
char str[64], *msg = NULL;
ut32 *n32 = (ut32*)str;
RDisasmState *ds = esil->user;
if (!ds) {
return 0;
}
if (!ds->show_emu_strlea && ds->analop.type == R_ANAL_OP_TYPE_LEA) {
// useful for ARM64
// reduce false positives in emu.str=true when loading strings via adrp+add
return 0;
}
ds->esil_likely = true;
if (ds->show_emu_ssa) {
ssa_set (esil, name);
char *r = ssa_get (esil, name);
ds_comment_esil (ds, true, false, ">%s", r);
free (r);
return 0;
}
if (!ds->show_slow) {
return 0;
}
memset (str, 0, sizeof (str));
if (*val) {
bool emu_str_printed = false;
char *type = NULL;
(void)r_io_read_at (esil->anal->iob.io, *val, (ut8*)str, sizeof (str)-1);
str[sizeof (str)-1] = 0;
// support cstring here
{
ut64 *cstr = (ut64*) str;
ut64 addr = cstr[0];
if (!(*val >> 32)) {
addr = addr & UT32_MAX;
}
if (cstr[0] == 0 && cstr[1] < 0x1000) {
ut64 addr = cstr[2];
if (!(*val >> 32)) {
addr = addr & UT32_MAX;
}
(void)r_io_read_at (esil->anal->iob.io, addr,
(ut8*)str, sizeof (str)-1);
// eprintf ("IS CSTRING 0x%llx %s\n", addr, str);
type = r_str_newf ("(cstr 0x%08"PFMT64x") ", addr);
ds->printed_str_addr = cstr[2];
} else if (r_io_is_valid_offset (esil->anal->iob.io, addr, 0)) {
ds->printed_str_addr = cstr[0];
type = r_str_newf ("(pstr 0x%08"PFMT64x") ", addr);
(void)r_io_read_at (esil->anal->iob.io, addr,
(ut8*)str, sizeof (str)-1);
// eprintf ("IS PSTRING 0x%llx %s\n", addr, str);
}
}
if (*str && !r_bin_strpurge (ds->core->bin, str, *val) && r_str_is_printable_incl_newlines (str)
&& (ds->printed_str_addr == UT64_MAX || *val != ds->printed_str_addr)) {
bool jump_op = false;
bool ignored = false;
switch (ds->analop.type) {
case R_ANAL_OP_TYPE_JMP:
case R_ANAL_OP_TYPE_UJMP:
case R_ANAL_OP_TYPE_RJMP:
case R_ANAL_OP_TYPE_IJMP:
case R_ANAL_OP_TYPE_IRJMP:
case R_ANAL_OP_TYPE_CJMP:
case R_ANAL_OP_TYPE_MJMP:
case R_ANAL_OP_TYPE_UCJMP:
jump_op = true;
break;
case R_ANAL_OP_TYPE_TRAP:
case R_ANAL_OP_TYPE_RET:
ignored = true;
break;
}
if (!jump_op && !ignored) {
const char *prefix;
ut32 len = sizeof (str) -1;
#if 0
RCore *core = ds->core;
ut32 len = core->blocksize + 256;
if (len < core->blocksize || len > R_DISASM_MAX_STR) {
len = R_DISASM_MAX_STR;
}
#endif
char *escstr = ds_esc_str (ds, str, (int)len, &prefix, false);
if (escstr) {
char *m;
if (ds->show_color) {
bool inv = ds->show_emu_strinv;
m = r_str_newf ("%s%s%s\"%s\"%s",
prefix, type ? type : "", inv ? Color_INVERT : "",
escstr, inv ? Color_INVERT_RESET : "");
} else {
m = r_str_newf ("%s%s\"%s\"", prefix, type? type: "", escstr);
}
msg = r_str_append_owned (msg, m);
emu_str_printed = true;
free (escstr);
}
}
} else {
if (!*n32) {
// msg = strdup ("NULL");
} else if (*n32 == UT32_MAX) {
/* nothing */
} else {
if (!ds->show_emu_str) {
msg = r_str_appendf (msg, "-> 0x%x", *n32);
}
}
}
R_FREE (type);
if ((ds->printed_flag_addr == UT64_MAX || *val != ds->printed_flag_addr)
&& (ds->show_emu_strflag || !emu_str_printed)) {
RFlagItem *fi = r_flag_get_i (esil->anal->flb.f, *val);
if (fi && (!ds->opstr || !strstr (ds->opstr, fi->name))) {
msg = r_str_appendf (msg, "%s%s", msg && *msg ? " " : "", fi->name);
}
}
}
if (ds->show_emu_str) {
if (msg && *msg) {
if (ds->show_emu_stroff && *msg == '"') {
ds_comment_esil (ds, true, false, "; 0x%"PFMT64x" %s", *val, msg);
} else {
ds_comment_esil (ds, true, false, "; %s", msg);
}
if (ds->show_comments && !ds->show_comment_right) {
ds_newline (ds);
}
}
} else {
if (msg && *msg) {
ds_comment_esil (ds, true, false, "; %s=0x%"PFMT64x" %s", name, *val, msg);
} else {
ds_comment_esil (ds, true, false, "; %s=0x%"PFMT64x, name, *val);
}
if (ds->show_comments && !ds->show_comment_right) {
ds_newline (ds);
}
}
free (msg);
return 0;
}
static void ds_pre_emulation(RDisasmState *ds) {
bool do_esil = ds->show_emu;
if (!ds->pre_emu) {
return;
}
RFlagItem *f = r_flag_get_at (ds->core->flags, ds->core->offset, true);
if (!f) {
return;
}
ut64 base = f->offset;
RAnalEsil *esil = ds->core->anal->esil;
int i, end = ds->core->offset - base;
int maxemu = 1024 * 1024;
RAnalEsilHookRegWriteCB orig_cb = esil->cb.hook_reg_write;
if (end < 0 || end > maxemu) {
return;
}
ds->stackptr = ds->core->anal->stackptr;
esil->cb.hook_reg_write = NULL;
for (i = 0; i < end; i++) {
ut64 addr = base + i;
RAnalOp* op = r_core_anal_op (ds->core, addr, R_ANAL_OP_MASK_ESIL | R_ANAL_OP_MASK_HINT);
if (op) {
if (do_esil) {
r_anal_esil_set_pc (esil, addr);
r_anal_esil_parse (esil, R_STRBUF_SAFEGET (&op->esil));
if (op->size > 0) {
i += op->size - 1;
}
}
ds_update_stackptr (ds, op);
r_anal_op_free (op);
}
}
esil->cb.hook_reg_write = orig_cb;
}
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) {
// XXX. stackptr not computed without asm.emu, when its not required
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");
unsigned int addrsize = r_config_get_i (core->config, "esil.addr.size");
if (!(core->anal->esil = r_anal_esil_new (esd, iotrap, addrsize))) {
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);
// TODO: emulate N instructions BEFORE the current offset to get proper full function emulation
ds_pre_emulation (ds);
}
static void ds_print_bbline(RDisasmState *ds, bool force) {
if (ds->show_bbline) {
RAnalBlock *bb = r_anal_fcn_bbget_at (ds->fcn, ds->at);
if (force || (ds->fcn && bb)) {
ds_begin_line (ds);
ds_setup_print_pre (ds, false, false);
if (!ds->linesright && ds->show_lines_bb && ds->line) {
char *refline;
if (force) { // bbline is after disasm
refline = r_anal_reflines_str (ds->core, ds->at,
ds->linesopts | R_ANAL_REFLINE_TYPE_MIDDLE_AFTER);
} else {
ds_update_ref_lines (ds);
refline = ds->refline2;
}
r_cons_printf ("%s%s%s", COLOR (ds, color_flow),
refline, COLOR_RESET (ds));
if (force) {
free (refline);
}
}
r_cons_printf ("|");
ds_newline (ds);
}
}
}
static void print_fcn_arg(RCore *core, const char *type, const char *name,
const char *fmt, const ut64 addr,
const int on_stack, int asm_types) {
if (on_stack == 1 && asm_types > 1) {
r_cons_printf ("%s", type);
}
if (addr != UT32_MAX && addr != UT64_MAX && addr != 0) {
char *res = r_core_cmd_strf (core, "pf%s %s%s %s @ 0x%08" PFMT64x,
(asm_types==2)? "": "q", (on_stack == 1) ? "*" : "", fmt, name, addr);
r_str_trim (res);
r_cons_printf ("%s", res);
free (res);
} else {
r_cons_printf ("-1");
}
r_cons_chop ();
}
static void delete_last_comment(RDisasmState *ds) {
if (!ds->show_comment_right_default) {
return;
}
const char *ll = r_cons_get_buffer ();
if (!ll) {
return;
}
ll += ds->buf_line_begin;
const char *begin = ll;
if (begin) {
ds_newline (ds);
ds_begin_line (ds);
ds_setup_print_pre (ds, false, false);
if (!ds->linesright && ds->show_lines_bb && ds->line) {
char *refline = r_anal_reflines_str (ds->core, ds->at,
ds->linesopts | R_ANAL_REFLINE_TYPE_MIDDLE_AFTER);
r_return_if_fail (refline);
r_cons_printf ("%s%s%s", COLOR (ds, color_flow),
refline, COLOR_RESET (ds));
free (refline);
}
}
}
static bool can_emulate_metadata(RCore * core, ut64 at) {
const char *infos;
const char *emuskipmeta = r_config_get (core->config, "emu.skip");
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;
}
static void mipsTweak(RDisasmState *ds) {
RCore *core = ds->core;
//const char *asm_arch = r_config_get (core->config, "asm.arch");
//if (asm_arch && *asm_arch && strstr (asm_arch, "mips")) {
ut64 gp = r_config_get_i (core->config, "anal.gp2");
if (gp && gp !=UT64_MAX) {
r_reg_setv (core->anal->reg, "gp", gp);
}
//}
}
// 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 = r_core_pava (core, ds->at);
RConfigHold *hc = r_config_hold_new (core->config);
if (!hc) {
return;
}
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);
}
esil = core->anal->esil;
pc = r_reg_get_name (core->anal->reg, R_REG_NAME_PC);
if (pc) {
r_reg_setv (core->anal->reg, pc, at + ds->analop.size);
esil->cb.user = ds;
esil->cb.hook_reg_write = myregwrite;
esil->cb.hook_reg_read = myregread;
hook_mem_write = esil->cb.hook_mem_write;
}
if (ds->show_emu_stack) {
esil->cb.hook_mem_write = mymemwrite2;
} else {
if (ds->show_emu_write) {
esil->cb.hook_mem_write = mymemwrite0;
} else {
esil->cb.hook_mem_write = mymemwrite1;
}
}
ds->esil_likely = 0;
mipsTweak (ds);
r_anal_esil_set_pc (esil, at);
r_anal_esil_parse (esil, R_STRBUF_SAFEGET (&ds->analop.esil));
r_anal_esil_stack_free (esil);
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, ds->analop.val, at);
if (s) {
ds_comment_esil (ds, true, 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_JMP:
{
ut64 addr = ds->analop.jump;
if (!r_anal_get_fcn_at (ds->core->anal, addr, R_ANAL_FCN_TYPE_NULL)
&& !r_flag_get_at (core->flags, addr, false)) {
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;
RAnalFuncArg *arg;
RListIter *iter;
RListIter *nextele;
const char *fcn_name = NULL;
char *key = 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) {
key = resolve_fcn_name (core->anal, fcn_name);
}
if (key) {
if (ds->asm_types < 1) {
break;
}
const char *fcn_type = r_type_func_ret (core->anal->sdb_types, key);
int nargs = r_type_func_args_count (core->anal->sdb_types, key);
// remove other comments
delete_last_comment (ds);
// ds_comment_start (ds, "");
ds_comment_esil (ds, true, false, "%s", ds->show_color ? ds->pal_comment : "");
if (fcn_type) {
ds_comment_middle (ds, "; %s%s%s(", r_str_get (fcn_type),
(*fcn_type && fcn_type[strlen (fcn_type) - 1] == '*') ? "" : " ",
r_str_get (key));
if (!nargs) {
ds_comment_end (ds, "void)");
break;
}
}
}
ut64 s_width = (core->anal->bits == 64)? 8: 4;
const char *sp = r_reg_get_name (core->anal->reg, R_REG_NAME_SP);
ut64 spv = r_reg_getv (core->anal->reg, sp);
r_reg_setv (core->anal->reg, sp, spv + s_width); // temporarily set stack ptr to sync with carg.c
RList *list = r_core_get_func_args (core, fcn_name);
if (!r_list_empty (list)) {
bool warning = false;
bool on_stack = false;
r_list_foreach (list, iter, arg) {
if (r_str_startswith (arg->cc_source, "stack")) {
on_stack = true;
}
if (!arg->size) {
if (ds->asm_types == 2) {
ds_comment_middle (ds, "%s: unk_size", arg->c_type);
}
warning = true;
}
nextele = r_list_iter_get_next (iter);
if (!arg->fmt) {
if (ds->asm_types > 1) {
if (warning) {
ds_comment_middle (ds, "_format");
} else {
ds_comment_middle (ds, "%s : unk_format", arg->c_type);
}
} else {
ds_comment_middle (ds, "?");
}
ds_comment_middle (ds, nextele?", ":")");
} else {
// TODO: may need ds_comment_esil
print_fcn_arg (core, arg->orig_c_type, arg->name, arg->fmt, arg->src, on_stack, ds->asm_types);
ds_comment_middle (ds, nextele?", ":")");
}
}
ds_comment_end (ds, "");
break;
} else {
// function name not resolved
nargs = DEFAULT_NARGS;
if (fcn) {
// @TODO: fcn->nargs should be updated somewhere and used here instead
nargs = r_anal_var_count (core->anal, fcn, 's', 1) +
r_anal_var_count (core->anal, fcn, 'b', 1) +
r_anal_var_count (core->anal, fcn, 'r', 1);
}
if (nargs > 0) {
if (fcn_name) {
ds_comment_middle (ds, "; %s(", fcn_name);
} else {
ds_comment_middle (ds, "; 0x%"PFMT64x"(", pcv);
}
for (i = 0; i < nargs; i++) {
ut64 v = r_debug_arg_get (core->dbg, R_ANAL_CC_TYPE_FASTCALL, i);
ds_comment_middle (ds, "%s0x%"PFMT64x, i?", ":"", v);
}
ds_comment_end (ds, ")");
}
}
r_reg_setv (core->anal->reg, sp, spv); // reset stack ptr
}
break;
}
ds_print_color_reset (ds);
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, "emu.write");
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);
RAnalFunction *fcn = fcnIn (ds, ds->analop.jump, -1);
Sdb *TDB = anal->sdb_types;
char *name;
if (!fcn) {
return;
}
if (r_type_func_exist (TDB, fcn->name)) {
name = strdup (fcn->name);
} else if (!(name = r_type_func_guess (TDB, fcn->name))) {
return;
}
ds_begin_comment (ds);
const char *fcn_type = r_type_func_ret (TDB, name);
if (!fcn_type || !*fcn_type) {
free (name);
return;
}
char *cmt = r_str_newf ("; %s%s%s(", fcn_type,
fcn_type[strlen (fcn_type) - 1] == '*' ? "" : " ",
name);
int i, arg_max = r_type_func_args_count (TDB, name);
if (!arg_max) {
cmt = r_str_append (cmt, "void)");
} else {
for (i = 0; i < arg_max; i++) {
char *type = r_type_func_args_type (TDB, name, i);
const char *tname = r_type_func_args_name (TDB, name, i);
if (type && *type) {
cmt = r_str_appendf (cmt, "%s%s%s%s%s", i == 0 ? "": " ", type,
type[strlen (type) -1] == '*' ? "": " ",
tname, i == arg_max - 1 ? ")": ",");
} else if (tname && !strcmp (tname, "...")) {
cmt = r_str_appendf (cmt, "%s%s%s", i == 0 ? "": " ",
tname, i == arg_max - 1 ? ")": ",");
}
free (type);
}
}
ds_comment (ds, true, cmt);
ds_print_color_reset (ds);
free (cmt);
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 (r_asm_op_get_asm (&ds->asmop));
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_usercomments || 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);
ds_print_color_reset (ds);
}
if (ds->show_comment_right && ds->comment) {
char *comment = r_str_trim (ds->comment);
if (*comment) {
if (!desc) {
ds_align_comment (ds);
}
if (strchr (comment, '\n')) {
comment = strdup (comment);
if (comment) {
ds_newline (ds);
ds_begin_line (ds);
int lines_count;
int *line_indexes = r_str_split_lines (comment, &lines_count);
if (line_indexes) {
int i;
for (i = 0; i < lines_count; i++) {
char *c = comment + line_indexes[i];
ds_print_pre (ds);
if (ds->show_color) {
r_cons_strcat (ds->color_usrcmt);
}
r_cons_printf (i == 0 ? "%s" : "; %s", c);
if (i < lines_count - 1) {
ds_newline (ds);
ds_begin_line (ds);
}
}
}
free (line_indexes);
}
free (comment);
} else {
if (comment) {
r_cons_strcat (comment);
}
}
}
//r_cons_strcat_justify (comment, strlen (ds->refline) + 5, ';');
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);
}
static char *_find_next_number(char *op) {
char *p = op;
if (p) {
while (*p) {
// look for start of next separator or ANSI sequence
while (*p && !IS_SEPARATOR (*p) && *p != 0x1b) {
p++;
}
if (*p == 0x1b) {
// skip to end of ANSI sequence (lower or uppercase char)
while (*p && !(*p >= 'A' && *p <= 'Z') && !(*p >= 'a' && *p <= 'z')) {
p++;
}
if (*p) {
p++;
}
}
if (IS_SEPARATOR (*p)) {
// skip to end of separator
while (*p && IS_SEPARATOR (*p)) {
p++;
}
}
if (IS_DIGIT (*p)) {
// we found the start of the next number
return p;
}
}
}
return NULL;
}
static char *ds_sub_jumps(RDisasmState *ds, char *str) {
RAnal *anal = ds->core->anal;
RFlag *f = ds->core->flags;
RFlagItem *flag;
const char *name = NULL;
if (!ds->jmpsub || !anal) {
return str;
}
int optype = ds->analop.type & 0xFFFF;
if (optype < R_ANAL_OP_TYPE_JMP || optype >= R_ANAL_OP_TYPE_RET) {
return str;
}
ut64 addr = ds->analop.jump;
RAnalFunction *fcn = r_anal_get_fcn_at (anal, addr, 0);
if (fcn) {
name = fcn->name;
} else if (f) {
flag = r_flag_get_i2 (f, addr);
if (flag) {
name = flag->name;
} else {
RBinReloc *rel = getreloc (ds->core, addr, ds->analop.size);
if (rel && rel->import && rel->import->name) {
name = rel->import->name;
}
}
}
if (name) {
char *nptr, *ptr;
ut64 numval;
ptr = str;
while ((nptr = _find_next_number (ptr))) {
ptr = nptr;
numval = r_num_get (NULL, ptr);
if (numval == addr) {
while (*nptr && !IS_SEPARATOR (*nptr) && *nptr != 0x1b) {
nptr++;
}
char* numstr = r_str_ndup (ptr, nptr-ptr);
if (numstr) {
str = r_str_replace (str, numstr, name, 0);
free (numstr);
}
break;
}
}
}
return str;
}
static bool line_highlighted(RDisasmState *ds) {
return ds->asm_highlight != UT64_MAX && ds->vat == ds->asm_highlight;
}
static void ds_start_line_highlight(RDisasmState *ds) {
if (ds->show_color && line_highlighted (ds)) {
r_cons_strcat (ds->color_linehl);
}
}
static void ds_end_line_highlight(RDisasmState *ds) {
if (ds->show_color && line_highlighted (ds)) {
r_cons_strcat (Color_RESET);
}
}
// 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, bool json, PJ *pj, RAnalFunction *pdf) {
int continueoninvbreak = (len == l) && invbreak;
RAnalFunction *of = NULL;
RAnalFunction *f = NULL;
bool calc_row_offsets = p->calc_row_offsets;
int ret, i, inc, skip_bytes_flag = 0, skip_bytes_bb = 0, idx = 0;
ut8 *nbuf = NULL;
const int addrbytes = core->io->addrbytes;
// TODO: All those ds must be print flags
RDisasmState *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;
ds->buf_line_begin = 0;
ds->pdf = pdf;
if (json) {
ds->pj = pj ? pj : pj_new ();
if (!ds->pj) {
return 0;
}
r_cons_push ();
} else {
ds->pj = NULL;
}
// disable row_offsets to prevent other commands to overwrite computed info
p->calc_row_offsets = false;
//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;
ut64 *p = realloc (core->asmqjmps, R_CORE_ASMQJMPS_NUM * sizeof (ut64));
if (p) {
core->asmqjmps_size = R_CORE_ASMQJMPS_NUM;
core->asmqjmps = p;
for (i = 0; i < R_CORE_ASMQJMPS_NUM; i++) {
core->asmqjmps[i] = UT64_MAX;
}
}
}
if (ds->pj && !pj) {
pj_a (ds->pj);
}
toro:
// uhm... is this necesary? imho can be removed
r_asm_set_pc (core->assembler, r_core_pava (core, ds->addr + idx));
core->cons->vline = r_config_get_i (core->config, "scr.utf8") ? (r_config_get_i (core->config, "scr.utf8.curvy") ? r_vline_uc : 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), R_ANAL_OP_MASK_ALL)) {
// 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];
if (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) {
ds->l = core->blocksize;
}
r_anal_merge_hint_ranges (core->anal);
r_cons_break_push (NULL, NULL);
for (i = idx = ret = 0; addrbytes * idx < len && ds->lines < ds->l; idx += inc, i++, ds->index += inc, ds->lines++) {
ds->at = ds->addr + idx;
ds->vat = r_core_pava (core, ds->at);
if (r_cons_is_breaked ()) {
R_FREE (nbuf);
if (ds->pj) {
r_cons_pop ();
}
r_cons_break_pop ();
ds_free (ds);
return 0; //break;
}
if (core->print->flags & R_PRINT_FLAGS_UNALLOC) {
if (!core->anal->iob.is_valid_offset (core->anal->iob.io, ds->at, 0)) {
ds_begin_line (ds);
ds_print_labels (ds, f);
ds_setup_print_pre (ds, false, false);
ds_print_lines_left (ds);
core->print->resetbg = (ds->asm_highlight == UT64_MAX);
ds_start_line_highlight (ds);
ds_print_offset (ds);
r_cons_printf (" unmapped\n");
inc = 1;
continue;
}
}
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);
ds->printed_str_addr = UT64_MAX;
ds->printed_flag_addr = UT64_MAX;
// XXX. this must be done in ds_update_pc()
// ds_update_pc (ds, ds->at);
r_asm_set_pc (core->assembler, ds->at);
ds_update_ref_lines (ds);
r_anal_op_fini (&ds->analop);
r_anal_op (core->anal, &ds->analop, ds->at, buf + addrbytes * idx, (int)(len - addrbytes * idx), R_ANAL_OP_MASK_ALL);
if (ds_must_strip (ds)) {
inc = ds->analop.size;
// inc = ds->asmop.payload + (ds->asmop.payload % ds->core->assembler->dataalign);
r_anal_op_fini (&ds->analop);
continue;
}
// f = r_anal_get_fcn_in (core->anal, ds->at, R_ANAL_FCN_TYPE_NULL);
f = ds->fcn = fcnIn (ds, ds->at, R_ANAL_FCN_TYPE_NULL);
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));
char *comment = r_meta_get_string (core->anal, R_META_TYPE_COMMENT, ds->at);
if (comment) {
ds_pre_xrefs (ds, true);
r_cons_printf ("; %s\n", comment);
free (comment);
}
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;
r_anal_op_fini (&ds->analop);
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;
r_anal_op_fini (&ds->analop);
continue;
}
}
ds_show_comments_right (ds);
// TRY adding here
char *link_key = sdb_fmt ("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_type_format (core->anal->sdb_types, 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_type_get_bitsize (core->anal->sdb_types, link_type) / 8;
free (fmt);
r_anal_op_fini (&ds->analop);
continue;
}
} else {
if (idx >= 0) {
ret = ds_disassemble (ds, buf + addrbytes * idx, len - addrbytes * idx);
if (ret == -31337) {
inc = ds->oplen;
r_anal_op_fini (&ds->analop);
continue;
}
}
}
if (ds->retry) {
ds->retry = false;
r_cons_break_pop ();
r_anal_op_fini (&ds->analop);
goto retry;
}
ds_atabs_option (ds);
// TODO: store previous oplen in core->dec
if (!core->inc) {
core->inc = ds->oplen;
}
// OOPs. double analysis here?
#if 0
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 + addrbytes * idx, (int)(len - addrbytes * idx));
}
#else
if (ds->analop.addr != ds->at) {
r_anal_op_fini (&ds->analop);
r_anal_op (core->anal, &ds->analop, ds->at, buf + addrbytes * idx, (int)(len - addrbytes * idx), R_ANAL_OP_MASK_ALL);
}
#endif
if (ret < 1) {
r_strbuf_fini (&ds->analop.esil);
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, calc_row_offsets);
}
if (ds->midflags) {
skip_bytes_flag = handleMidFlags (core, ds, true);
if (skip_bytes_flag && ds->midflags == R_MIDFLAGS_SHOW) {
ds->at += skip_bytes_flag;
}
}
ds_show_flags (ds);
if (skip_bytes_flag && ds->midflags == R_MIDFLAGS_SHOW) {
ds->at -= skip_bytes_flag;
}
if (ds->midbb) {
skip_bytes_bb = handleMidBB (core, ds);
}
if (ds->pdf) {
static bool sparse = false;
RAnalBlock *bb = r_anal_fcn_bbget_in (core->anal, ds->pdf, ds->at);
if (!bb) {
for (inc = 1; inc < ds->oplen; inc++) {
RAnalBlock *bb = r_anal_fcn_bbget_in (core->anal, ds->pdf, ds->at + inc);
if (bb) {
break;
}
}
r_anal_op_fini (&ds->analop);
if (!sparse) {
r_cons_printf ("..\n");
sparse = true;
}
continue;
}
sparse = false;
}
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, false);
ds_print_ptr (ds, len + 256, idx);
if (!ds->pseudo) {
R_FREE (ds->opstr);
}
ds_print_sysregs (ds);
ds_print_fcn_name (ds);
ds_print_color_reset (ds);
if (ds->show_emu) {
ds_print_esil_anal (ds);
}
if (ds->analop.type == R_ANAL_OP_TYPE_CALL && ds->show_calls) {
ds_print_calls_hints (ds);
}
/* respect asm.describe */
char *desc = NULL;
if (ds->asm_describe && !ds->has_description) {
char *op, *locase = strdup (r_asm_op_get_asm (&ds->asmop));
if (!locase) {
break;
}
op = strchr (locase, ' ');
if (op) {
*op = 0;
}
r_str_case (locase, 0);
desc = r_asm_describe (core->assembler, locase);
free (locase);
}
if (desc && *desc) {
ds_begin_comment(ds);
ds_align_comment (ds);
if (ds->show_color) {
r_cons_strcat (ds->color_comment);
}
r_cons_strcat ("; ");
r_cons_strcat (desc);
ds_print_color_reset (ds);
ds_newline (ds);
free (desc);
}
}
ds_begin_line (ds);
f = fcnIn (ds, ds->addr, 0);
ds_print_labels (ds, f);
ds_setup_print_pre (ds, false, false);
ds_print_lines_left (ds);
core->print->resetbg = (ds->asm_highlight == UT64_MAX);
ds_start_line_highlight (ds);
ds_print_offset (ds);
if (ds->asm_hint_pos == 0) {
ds_print_core_vmode (ds, ds->asm_hint_pos);
}
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_print_dwarf (ds);
ret = ds_print_middle (ds, ret);
ds_print_asmop_payload (ds, buf + addrbytes * 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 + addrbytes * idx,
len - addrbytes * idx + 5);
r_asm_set_syntax (core->assembler, os);
}
if (ds->asm_hint_pos > 0) {
ds_print_core_vmode (ds, ds->asm_hint_pos);
}
ds_end_line_highlight (ds);
if ((ds->show_comments || ds->show_usercomments) && ds->show_comment_right) {
ds_print_color_reset (ds);
ds_print_comments_right (ds);
}
} else {
ds->mi_found = false;
/* show cursor */
ds_print_show_cursor (ds);
ds_print_show_bytes (ds);
ds_print_lines_right (ds);
ds_build_op_str (ds, true);
ds_print_opstr (ds);
ds_end_line_highlight (ds);
ds_print_dwarf (ds);
ret = ds_print_middle (ds, ret);
ds_print_asmop_payload (ds, buf + addrbytes * 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 + addrbytes * idx,
len - addrbytes * idx + 5);
r_asm_set_syntax (core->assembler, os);
}
if (ds->asm_hint_pos > 0) {
ds_print_core_vmode (ds, ds->asm_hint_pos);
}
// ds_print_cc_update (ds);
ds_cdiv_optimization (ds);
if ((ds->show_comments || ds->show_usercomments) && ds->show_comment_right) {
ds_instruction_mov_lea (ds, idx);
ds_print_ptr (ds, len + 256, idx);
ds_print_sysregs (ds);
ds_print_fcn_name (ds);
ds_print_color_reset (ds);
ds_print_comments_right (ds);
ds_print_esil_anal (ds);
ds_show_refs (ds);
}
}
core->print->resetbg = true;
ds_newline (ds);
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));
}
ds_begin_line (ds);
ds_print_pre (ds);
r_cons_printf ("%s%s%s; --------------------------------------",
COLOR (ds, color_flow), ds->line, COLOR_RESET (ds));
ds_newline (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_flag) {
inc = skip_bytes_flag;
}
if (skip_bytes_bb && skip_bytes_bb < inc) {
inc = skip_bytes_bb;
}
if (inc < 1) {
inc = 1;
}
inc += ds->asmop.payload + (ds->asmop.payload % ds->core->assembler->dataalign);
}
r_anal_op_fini (&ds->analop);
R_FREE (nbuf);
r_cons_break_pop ();
#if HASRETRY
if (!ds->cbytes && ds->lines < ds->l) {
ds->addr = ds->at + inc;
retry:
if (len < 4) {
len = 4;
}
if (nbuf) {
free (nbuf);
}
buf = nbuf = malloc (len);
if (ds->tries > 0) {
if (r_io_read_at (core->io, ds->addr, buf, len)) {
goto toro;
}
}
if (ds->lines < ds->l) {
//ds->addr += idx;
if (!r_io_read_at (core->io, ds->addr, buf, len)) {
//ds->tries = -1;
}
goto toro;
}
if (continueoninvbreak) {
goto toro;
}
R_FREE (nbuf);
}
#endif
if (ds->pj) {
r_cons_pop ();
if (!pj) {
pj_end (ds->pj);
r_cons_printf ("%s", pj_string (ds->pj));
pj_free (ds->pj);
}
}
r_print_set_rowoff (core->print, ds->lines, ds->at - addr, calc_row_offsets);
r_print_set_rowoff (core->print, ds->lines + 1, UT32_MAX, calc_row_offsets);
// TODO: this too (must review)
ds_print_esil_anal_fini (ds);
ds_reflines_fini (ds);
ds_free (ds);
R_FREE (nbuf);
p->calc_row_offsets = calc_row_offsets;
/* used by asm.emu */
r_reg_arena_pop (core->anal->reg);
return addrbytes * 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;
const int addrbytes = core->io->addrbytes;
int skip_bytes_flag = 0, skip_bytes_bb = 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_io_read_at (core->io, core->offset, core->block, nbytes);
}
} else {
if (nb_bytes < 0) { // Disassemble backward `nb_bytes` bytes
nb_bytes = -nb_bytes;
core->offset -= nb_bytes;
if (nb_bytes > core->blocksize) {
ut64 obsz = core->blocksize;
r_core_block_size (core, nb_bytes);
if (core->blocksize == nb_bytes) {
r_io_read_at (core->io, core->offset, core->block, nb_bytes);
} else {
eprintf ("Cannot read that much!\n");
r_core_block_size (core, obsz);
len = -1;
goto err_offset;
}
r_core_block_size (core, obsz);
} else {
r_io_read_at (core->io, core->offset, core->block, nb_bytes);
}
} else {
if (nb_bytes > core->blocksize) {
r_core_block_size (core, nb_bytes);
r_io_read_at (core->io, 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_anal_merge_hint_ranges (core->anal);
r_cons_break_push (NULL, NULL);
//build ranges to map addr with bits
#define isNotTheEnd (nb_opcodes ? j < nb_opcodes: addrbytes * i < nb_bytes)
for (i = j = 0; isNotTheEnd; i += ret, j++) {
ds->at = core->offset + i;
ds->vat = r_core_pava (core, 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 + addrbytes * i, core->blocksize - addrbytes * i);
ds->oplen = ret;
if (ds->midflags) {
skip_bytes_flag = handleMidFlags (core, ds, true);
}
if (ds->midbb) {
skip_bytes_bb = handleMidBB (core, ds);
}
if (skip_bytes_flag && ds->midflags > R_MIDFLAGS_SHOW) {
ret = skip_bytes_flag;
}
if (skip_bytes_bb && skip_bytes_bb < ret) {
ret = skip_bytes_bb;
}
r_anal_op_fini (&ds->analop);
if (ds->show_color && !hasanal) {
r_anal_op (core->anal, &ds->analop, ds->at, core->block + addrbytes * i, core->blocksize - addrbytes * i, R_ANAL_OP_MASK_ALL);
hasanal = true;
}
if (ds_must_strip (ds)) {
continue;
}
// 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->decode && !ds->immtrim) {
free (ds->opstr);
if (!hasanal) {
r_anal_op (core->anal, &ds->analop, ds->at, core->block+i, core->blocksize-i, R_ANAL_OP_MASK_ALL);
hasanal = true;
}
tmpopstr = r_anal_op_to_string (core->anal, &ds->analop);
ds->opstr = (tmpopstr)? tmpopstr: strdup (r_asm_op_get_asm (&ds->asmop));
} else if (ds->immtrim) {
ds->opstr = strdup (r_asm_op_get_asm (&ds->asmop));
r_parse_immtrim (ds->opstr);
} else if (ds->use_esil) {
if (!hasanal) {
r_anal_op (core->anal, &ds->analop,
ds->at, core->block + i,
core->blocksize - i, R_ANAL_OP_MASK_ESIL | R_ANAL_OP_MASK_HINT);
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;
RSpace *ofs = core->parser->flagspace;
RSpace *fs = ds->flagspace_ports;
if (ds->analop.type == R_ANAL_OP_TYPE_IO) {
core->parser->notin_flagspace = NULL;
core->parser->flagspace = fs;
} else {
if (fs) {
core->parser->notin_flagspace = fs;
core->parser->flagspace = fs;
} else {
core->parser->notin_flagspace = NULL;
core->parser->flagspace = NULL;
}
}
core->parser->hint = ds->hint;
ds->hint = NULL;
r_parse_filter (core->parser, ds->vat, core->flags, r_asm_op_get_asm (&ds->asmop),
ds->str, sizeof (ds->str), core->print->big_endian);
ds->opstr = strdup (ds->str);
asm_str = colorize_asm_string (core, ds, true);
core->parser->flagspace = ofs;
free (ds->opstr);
ds->opstr = asm_str;
core->parser->flagspace = ofs; // ???
} else {
ds->opstr = strdup (r_asm_op_get_asm (&ds->asmop));
}
if (ds->immtrim) {
free (ds->opstr);
ds->opstr = strdup (r_asm_op_get_asm (&ds->asmop));
r_parse_immtrim (ds->opstr);
}
}
{
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);
err_offset:
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, PJ *pj) {
RAsmOp asmop;
RDisasmState *ds;
RAnalFunction *f;
int i, j, k, ret, line;
ut64 old_offset = core->offset;
ut64 at;
int dis_opcodes = 0;
int limit_by = 'b';
char str[512];
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 false;
}
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
pj_end (pj);
return false;
#if BWRETRY
}
#endif
nb_opcodes --;
}
count = R_MIN (nb_bytes, nbytes);
if (count > 0) {
r_io_read_at (core->io, addr, buf, count);
r_io_read_at (core->io, 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_io_read_at (core->io, 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_io_read_at (core->io, 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);
bool result = false;
for (;;) {
bool end_nbopcodes, end_nbbytes;
int skip_bytes_flag = 0, skip_bytes_bb = 0;
at = addr + k;
ds->hint = r_core_hint_begin (core, ds->hint, ds->at);
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_io_read_at (core->io, at, buf, nb_bytes);
i = 0;
}
if (limit_by == 'o') {
if (j >= nb_opcodes) {
break;
}
} else if (i >= nb_bytes) {
break;
}
memset (&asmop, 0, sizeof (RAsmOp));
ret = r_asm_disassemble (core->assembler, &asmop, buf + i, nb_bytes - i);
if (ret < 1) {
pj_o (pj);
pj_kn (pj, "offset", at);
pj_ki (pj, "size", 1);
pj_ks (pj, "type", "invalid");
pj_end (pj);
i++;
k++;
j++;
result = true;
continue;
}
char opstr[256];
strcpy (opstr, r_asm_op_get_asm (&asmop));
ds->has_description = false;
r_anal_op_fini (&ds->analop);
r_anal_op (core->anal, &ds->analop, at, buf + i, nb_bytes - i, R_ANAL_OP_MASK_ALL);
if (ds->pseudo) {
r_parse_parse (core->parser, opstr, opstr);
}
// f = r_anal_get_fcn_in (core->anal, at,
f = fcnIn (ds, at, R_ANAL_FCN_TYPE_FCN | R_ANAL_FCN_TYPE_SYM | R_ANAL_FCN_TYPE_LOC);
if (ds->varsub && f) {
core->parser->varlist = r_anal_var_list_dynamic;
int ba_len = r_strbuf_length (&asmop.buf_asm) + 128;
char *ba = malloc (ba_len);
if (ba) {
strcpy (ba, r_asm_op_get_asm (&asmop));
r_parse_varsub (core->parser, f, at, ds->analop.size,
ba, ba, ba_len);
r_asm_op_set_asm (&asmop, ba);
free (ba);
}
}
ds->oplen = r_asm_op_get_size (&asmop);
ds->at = at;
if (ds->midflags) {
skip_bytes_flag = handleMidFlags (core, ds, false);
}
if (ds->midbb) {
skip_bytes_bb = handleMidBB (core, ds);
}
if (skip_bytes_flag && ds->midflags > R_MIDFLAGS_SHOW) {
ds->oplen = ret = skip_bytes_flag;
}
if (skip_bytes_bb && skip_bytes_bb < ret) {
ds->oplen = ret = skip_bytes_bb;
}
{
ut64 killme = UT64_MAX;
bool be = core->print->big_endian;
if (r_io_read_i (core->io, ds->analop.ptr, &killme, ds->analop.refptr, be)) {
core->parser->relsub_addr = killme;
}
}
{
char *aop = r_asm_op_get_asm (&asmop);
char *buf = malloc (strlen (aop) + 128);
if (buf) {
strcpy (buf, aop);
r_parse_filter (core->parser, ds->vat, core->flags, buf,
str, sizeof (str), core->print->big_endian);
r_asm_op_set_asm (&asmop, buf);
free (buf);
}
}
pj_o (pj);
pj_kn (pj, "offset", at);
if (ds->analop.ptr != UT64_MAX) {
pj_kn (pj, "ptr", ds->analop.ptr);
}
if (ds->analop.val != UT64_MAX) {
pj_kn (pj, "val", ds->analop.val);
}
pj_k (pj, "esil"); // split key and value to allow empty strings
pj_s (pj, R_STRBUF_SAFEGET (&ds->analop.esil));
pj_kb (pj, "refptr", ds->analop.refptr);
pj_kn (pj, "fcn_addr", f ? f->addr : 0);
pj_kn (pj, "fcn_last", f ? f->addr + r_anal_fcn_size (f) - ds->oplen : 0);
pj_ki (pj, "size", ds->analop.size);
pj_ks (pj, "opcode", opstr);
pj_ks (pj, "disasm", str);
pj_ks (pj, "bytes", r_asm_op_get_hex (&asmop));
pj_ks (pj, "family", r_anal_op_family_to_string (ds->analop.family));
pj_ks (pj, "type", r_anal_optype_to_string (ds->analop.type));
// indicate a relocated address
RBinReloc *rel = getreloc (core, ds->at, ds->analop.size);
// reloc is true if address in reloc table
pj_kb (pj, "reloc", rel);
// wanted the numerical values of the type information
pj_kn (pj, "type_num", ds->analop.type);
pj_kn (pj, "type2_num", 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;
pj_k (pj, "switch");
pj_a (pj);
r_list_foreach (ds->analop.switch_op->cases, iter, caseop ) {
pj_o (pj);
pj_kn (pj, "addr", caseop->addr);
pj_kN (pj, "value", (st64) caseop->value);
pj_kn (pj, "jump", caseop->jump);
pj_end (pj);
}
pj_end (pj);
}
if (ds->analop.jump != UT64_MAX ) {
pj_kN (pj, "jump", ds->analop.jump);
if (ds->analop.fail != UT64_MAX) {
pj_kn (pj, "fail", 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)) {
pj_k (pj, "flags");
pj_a (pj);
r_list_foreach (flags, iter, flag) {
pj_s (pj, flag->name);
}
pj_end (pj);
}
}
/* 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);
pj_ks (pj, "comment", b64comment);
free (comment);
free (b64comment);
}
}
/* add xrefs */
{
RAnalRef *ref;
RListIter *iter;
RList *xrefs = r_anal_xrefs_get (core->anal, at);
if (xrefs && !r_list_empty (xrefs)) {
pj_k (pj, "xrefs");
pj_a (pj);
r_list_foreach (xrefs, iter, ref) {
pj_o (pj);
pj_kn (pj, "addr", ref->addr);
pj_ks (pj, "type", r_anal_xrefs_type_tostring (ref->type));
pj_end (pj);
}
pj_end (pj);
}
r_list_free (xrefs);
}
pj_end (pj);
i += ds->oplen + asmop.payload + (ds->asmop.payload % ds->core->assembler->dataalign); // bytes
k += ds->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;
result = true;
if (end_nbopcodes || end_nbbytes) {
break;
}
}
// r_cons_printf ("]");
core->offset = old_offset;
r_anal_op_fini (&ds->analop);
ds_free (ds);
if (!result) {
pj_o (pj);
pj_end (pj);
result = true;
}
return result;
}
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, 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_io_read_at (core->io, addr, buf, l);
}
if (mode == 'j') {
r_cons_print ("[");
}
r_cons_break_push (NULL, NULL);
for (i = 0; i < l; i++) {
ds->at = addr + i;
ds->vat = r_core_pava (core, 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) {
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, ds->vat, core->flags, r_asm_op_get_asm (&asmop),
str, sizeof (str), core->print->big_endian);
if (scr_color) {
RAnalOp aop;
RAnalFunction *f = fcnIn (ds, ds->vat, R_ANAL_FCN_TYPE_NULL);
r_anal_op (core->anal, &aop, addr, buf+i, l-i, R_ANAL_OP_MASK_ALL);
char *buf_asm = r_print_colorize_opcode (core->print, str,
core->cons->context->pal.reg, core->cons->context->pal.num, false, f ? f->addr : 0);
if (buf_asm) {
r_cons_printf ("%s%s\n", r_print_color_op_type (core->print, aop.type), buf_asm);
free (buf_asm);
}
} else {
r_cons_println (r_asm_op_get_asm (&asmop));
}
break;
case '=':
if (i < 28) {
char *str = r_str_newf ("0x%08"PFMT64x" %60s %s\n", ds->vat, "", r_asm_op_get_asm (&asmop));
char *sp = strchr (str, ' ');
if (sp) {
char *end = sp + 60 + 1;
const char *src = r_asm_op_get_hex (&asmop);
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, r_asm_op_get_hex (&asmop), r_asm_op_get_asm (&asmop), ",");
break;
default:
r_cons_printf ("0x%08"PFMT64x" %20s %s\n",
addr + i, r_asm_op_get_hex (&asmop),
r_asm_op_get_asm (&asmop));
}
}
}
r_cons_break_pop ();
if (buf != core->block) {
free (buf);
}
if (mode == 'j') {
r_cons_printf ("{}]\n");
}
ds_free (ds);
return count;
}
static inline bool pdi_check_end(int nb_opcodes, int nb_bytes, int i, int j) {
if (nb_opcodes > 0) {
if (nb_bytes > 0) {
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");
bool asm_immtrim = r_config_get_i (core->config, "asm.imm.trim");
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);
const int addrbytes = core->io->addrbytes;
if (fmt == 'e') {
show_bytes = 0;
decode = 1;
}
if (!nb_opcodes && !nb_bytes) {
return 0;
}
if (!nb_opcodes) {
nb_opcodes = -1;
if (nb_bytes < 0) {
// Backward disasm `nb_bytes` bytes
nb_bytes = -nb_bytes;
core->offset -= nb_bytes;
r_io_read_at (core->io, 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);
}
nb_bytes *= core->io->addrbytes;
if (nb_bytes > core->blocksize) {
r_core_block_size (core, nb_bytes);
}
r_io_read_at (core->io, 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;
}
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.flags.middle");
int midbb = r_config_get_i (core->config, "asm.bb.middle");
i = 0;
j = 0;
toro:
for (; pdi_check_end (nb_opcodes, nb_bytes, addrbytes * 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 + addrbytes * i,
core->blocksize - addrbytes * i);
if (midflags || midbb) {
RDisasmState ds = {
.oplen = ret,
.at = core->offset + i,
.midflags = midflags
};
int skip_bytes_flag = 0, skip_bytes_bb = 0;
if (midflags) {
skip_bytes_flag = handleMidFlags (core, &ds, true);
}
if (midbb) {
skip_bytes_bb = handleMidBB (core, &ds);
}
if (skip_bytes_flag && midflags > R_MIDFLAGS_SHOW) {
asmop.size = ret = skip_bytes_flag;
}
if (skip_bytes_bb && skip_bytes_bb < ret) {
asmop.size = ret = skip_bytes_bb;
}
}
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;
unsigned int seggrn = r_config_get_i (core->config, "asm.seggrn");
r_print_offset_sg (core->print, at, 0, show_offseg, seggrn, 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 ", r_asm_op_get_hex (&asmop));
}
ret = asmop.size;
if (!asm_immtrim && (decode || esil)) {
RAnalOp analop = {
0
};
char *tmpopstr, *opstr = NULL;
r_anal_op (core->anal, &analop, core->offset + i,
core->block + addrbytes * i, core->blocksize - addrbytes * i, R_ANAL_OP_MASK_ALL);
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: r_asm_op_get_asm (&(asmop));
} else if (esil) {
opstr = (R_STRBUF_SAFEGET (&analop.esil));
}
if (asm_immtrim ) {
r_parse_immtrim (opstr);
}
r_cons_println (opstr);
}
} else {
char opstr[128] = {
0
};
char *asm_str = r_asm_op_get_asm (&asmop);
if (asm_ucase) {
r_str_case (asm_str, 1);
}
if (asm_immtrim) {
r_parse_immtrim (asm_str);
}
if (filter) {
core->parser->hint = r_anal_hint_get (core->anal, at);
r_parse_filter (core->parser, at, core->flags,
asm_str, opstr, sizeof (opstr) - 1, core->print->big_endian);
asm_str = (char *)&opstr;
}
if (show_color) {
RAnalOp aop = {
0
};
RAnalFunction *f = r_anal_get_fcn_in (core->anal, core->offset + i, R_ANAL_FCN_TYPE_NULL);
r_anal_op (core->anal, &aop, core->offset + i,
core->block + addrbytes * i, core->blocksize - addrbytes * i, R_ANAL_OP_MASK_BASIC);
asm_str = r_print_colorize_opcode (core->print, asm_str, color_reg, color_num, false, f ? f->addr : 0);
r_cons_printf ("%s%s"Color_RESET "\n",
r_print_color_op_type (core->print, aop.type),
asm_str);
free (asm_str);
r_anal_op_fini (&aop);
} else {
r_cons_println (asm_str);
}
}
}
i += ret;
}
if (nb_opcodes > 0 && j < nb_opcodes) {
r_core_seek (core, core->offset + i, 1);
i = 0;
goto toro;
}
r_cons_break_pop ();
r_core_seek (core, old_offset, 1);
return err;
}