Magic-Mirror/radare2
1
0
Fork 0
mirror of https://github.com/radareorg/radare2.git synced 2024-12-11 23:16:05 +00:00
Code Issues Actions 6 Packages Projects Releases Wiki Activity

Fix #8169 - Show backtrace with local vars with 'dbtv'

Browse Source
This commit is contained in:
pancake 2017-08-09 23:38:42 +02:00
parent 6aa1cc250d
commit 4b214d8627
2 changed files with 67 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libr/core/cmd_anal.c
View File

@ -746,7 +746,7 @@ static int var_cmd(RCore *core, const char *str) {
return res;
}
if (!fcn) {
eprintf ("Cannot find function here\n");
eprintf ("Cannot find function in 0x%08"PFMT64x"\n", core->offset);
return false;
}
ostr = p = strdup (str);

66
libr/core/cmd_debug.c
View File

@ -61,6 +61,7 @@ static const char *help_msg_db[] = {
"dbt=", "", "Display backtrace in one line (see dbt=s and dbt=b for sp or bp)",
"dbtj", "", "Display backtrace in JSON",
"dbta", "", "Display ascii-art representation of the stack backtrace",
"dbtv", "", "Display backtrace with local vars if any",
"dbte", " <addr>", "Enable Breakpoint Trace",
"dbtd", " <addr>", "Disable Breakpoint Trace",
"dbts", " <addr>", "Swap Breakpoint Trace",
@ -2414,6 +2415,66 @@ static int validAddress(RCore *core, ut64 addr) {
return core->num->value = 0;
}
static void backtrace_vars(RCore *core, RList *frames) {
RDebugFrame *f;
RListIter *iter;
bool mymap = false;
// anal vs debug ?
const char *sp = r_reg_get_name (core->anal->reg, R_REG_NAME_SP);
const char *bp = r_reg_get_name (core->anal->reg, R_REG_NAME_BP);
if (!sp) {
sp = "SP";
}
if (!bp) {
bp = "BP";
}
RReg *r = core->anal->reg;
ut64 dsp = r_reg_getv (r, sp);
ut64 dbp = r_reg_getv (r, bp);
int n = 0;
r_list_foreach (frames, iter, f) {
ut64 s = f->sp ? f->sp : dsp;
ut64 b = f->bp ? f->bp : dbp;
r_reg_setv (r, bp, s);
r_reg_setv (r, sp, b);
char flagdesc[1024], flagdesc2[1024], pcstr[32], spstr[32];
RFlagItem *fi = r_flag_get_at (core->flags, f->addr, true);
flagdesc[0] = flagdesc2[0] = 0;
if (f) {
if (fi->offset != f->addr) {
int delta = (int)(f->addr - fi->offset);
if (delta > 0) {
snprintf (flagdesc, sizeof (flagdesc),
"%s+%d", fi->name, delta);
} else if (delta < 0) {
snprintf (flagdesc, sizeof (flagdesc),
"%s%d", fi->name, delta);
} else {
snprintf (flagdesc, sizeof (flagdesc),
"%s", fi->name);
}
} else {
snprintf (flagdesc, sizeof (flagdesc),
"%s", fi->name);
}
}
RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, f->addr, 0);
// char *str = r_str_newf ("[frame %d]", n);
r_cons_printf ("%d 0x%08"PFMT64x" sp: 0x%08"PFMT64x" %-5d"
"[%s] %s %s\n", n, f->addr, f->sp, (int)f->size,
fcn ? fcn->name : "??", flagdesc, flagdesc2);
eprintf ("afvd @ 0x%"PFMT64x"\n", f->addr);
r_cons_push();
char *res = r_core_cmd_strf (core, "afvd@0x%"PFMT64x, f->addr);
r_cons_pop();
r_cons_printf ("%s", res);
free (res);
n++;
}
r_reg_setv (r, bp, dbp);
r_reg_setv (r, sp, dsp);
}
static void asciiart_backtrace(RCore *core, RList *frames) {
// TODO: show local variables
// TODO: show function/flags/symbols related
@ -2530,6 +2591,11 @@ static void r_core_cmd_bp(RCore *core, const char *input) {
break;
case 't': // "dbt"
switch (input[2]) {
case 'v': // "dbtv"
list = r_debug_frames (core->dbg, addr);
backtrace_vars (core, list);
r_list_free (list);
break;
case 'a': // "dbta"
list = r_debug_frames (core->dbg, addr);
asciiart_backtrace (core, list);