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Implement symbol diffing in radiff2 ##diff

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Sergi Àlvarez i Capilla 2021-11-30 21:09:01 +01:00 committed by pancake
parent 97cd997eff
commit a8ad11f6b7
2 changed files with 46 additions and 6 deletions
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45
libr/main/radiff2.c
View File

@ -1,4 +1,4 @@
/* radare - LGPL - Copyright 2009-2020 - pancake */
/* radare - LGPL - Copyright 2009-2021 - pancake */
#include <r_core.h>
#include <r_main.h>
@ -7,6 +7,7 @@ enum {
MODE_DIFF,
MODE_DIFF_STRS,
MODE_DIFF_IMPORTS,
MODE_DIFF_SYMBOLS,
MODE_DIST_MYERS,
MODE_DIST_LEVENSHTEIN,
MODE_CODE,
@ -437,7 +438,7 @@ static int show_help(int v) {
" -e [k=v] set eval config var value for all RCore instances\n"
" -g [sym|off1,off2] graph diff of given symbol, or between two offsets\n"
" -G [cmd] run an r2 command on every RCore instance created\n"
" -i diff imports of target files (see -u, -U and -z)\n"
" -i [i,s] diff symbols or imports of target files (-U is default)\n"
" -j output in json format\n"
" -n print bare addresses only (diff.bare=1)\n"
" -m [aditsjJ] choose the graph output mode\n"
@ -743,6 +744,25 @@ static int import_cmp(const RBinImport *a, const RBinImport *b) {
return strcmp (a->name, b->name);
}
static ut8 *get_symbols(RCore *c, int *len) {
RListIter *iter;
if (!c || !len) {
return NULL;
}
RBinSymbol *sym;
const RList *list = r_bin_get_symbols (c->bin);
RList *reslist = r_list_newf (free);
r_list_foreach (list, iter, sym) {
r_list_append (reslist, strdup (sym->name));
}
char *buf = r_str_list_join (reslist, "\n");
*len = strlen (buf);
r_list_free (reslist);
return (ut8*)buf;
}
static ut8 *get_imports(RCore *c, int *len) {
RListIter *iter;
RBinImport *str, *old = NULL;
@ -960,7 +980,7 @@ R_API int r_main_radiff2(int argc, const char **argv) {
radiff_options_init (&ro);
r_getopt_init (&opt, argc, argv, "Aa:b:BCDe:npg:m:G:OijrhcdsS:uUvVxXt:zqZ");
r_getopt_init (&opt, argc, argv, "Aa:b:BCDe:npg:m:G:Oi:jrhcdsS:uUvVxXt:zqZ");
while ((o = r_getopt_next (&opt)) != -1) {
switch (o) {
case 'a':
@ -1012,9 +1032,20 @@ R_API int r_main_radiff2(int argc, const char **argv) {
case 'C':
ro.mode = MODE_CODE;
break;
case 'i':
ro.diffmode = 'U';
switch (opt.arg[0]) {
case 'i':
ro.mode = MODE_DIFF_IMPORTS;
break;
case 's':
ro.mode = MODE_DIFF_SYMBOLS;
break;
default:
eprintf ("-i expects [s,i] for symbols or imports diffing\n");
return 1;
}
break;
case 'n':
ro.showbare = true;
break;
@ -1099,6 +1130,7 @@ R_API int r_main_radiff2(int argc, const char **argv) {
case MODE_GRAPH:
case MODE_CODE:
case MODE_DIFF_STRS:
case MODE_DIFF_SYMBOLS:
case MODE_DIFF_IMPORTS:
c = opencore (&ro, ro.file);
if (!c) {
@ -1181,6 +1213,12 @@ R_API int r_main_radiff2(int argc, const char **argv) {
r_core_gdiff (c, c2);
r_core_diff_show (c, c2);
}
} else if (ro.mode == MODE_DIFF_SYMBOLS) {
int sz;
bufa = get_symbols (c, &sz);
sza = sz;
bufb = get_symbols (c2, &sz);
szb = sz;
} else if (ro.mode == MODE_DIFF_IMPORTS) {
int sz;
bufa = get_imports (c, &sz);
@ -1244,6 +1282,7 @@ R_API int r_main_radiff2(int argc, const char **argv) {
break;
case MODE_DIFF:
case MODE_DIFF_STRS:
case MODE_DIFF_SYMBOLS:
case MODE_DIFF_IMPORTS:
d = r_diff_new ();
r_diff_set_delta (d, delta);

5
man/radiff2.1
View File

@ -7,6 +7,7 @@
.Nm radiff2
.Op Fl AabcCdDhOrspxXvzZ
.Op Fl t Ar 0-100
.Op Fl i Ar i,s
.Op Fl g Ar sym
.Op Fl S Ar algo
.Ar file1
@ -37,8 +38,8 @@ Show disasm instead of hexpairs (honors -a arch and -b bits)
Graph diff output of given symbol, or between two functions, at given offsets: one for each binary.
.It Fl h
Show usage help message.
.It Fl i
Compare the list of imports
.It Fl i Ar i, s
Compare imports or symbols from given files (radiff2 -ii /bin/ls /bin/cat)
.It Fl n
Suppress address names (show only addresses) when code diffing.
.It Fl O