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Implement soft esil pins, only executed in the disasm loop ##disasm

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pancake 2024-04-01 17:19:25 +02:00 committed by GitHub
parent 354b17c87b
commit 3db7d62b4e
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GPG Key ID: B5690EEEBB952194
5 changed files with 53 additions and 4 deletions
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9
libr/anal/pin.c
View File

@ -1,4 +1,4 @@
/* radare - LGPL - Copyright 2015-2023 - pancake, nibble */
/* radare - LGPL - Copyright 2015-2024 - pancake */
#include <r_anal.h>
@ -107,6 +107,13 @@ R_API const char *r_anal_pin_call(RAnal *a, ut64 addr) {
if (key) {
r_strf_buffer (128);
const char *name = sdb_const_get (DB, key, NULL);
if (!name) {
return NULL;
}
if (r_str_startswith (name, "soft.")) {
// do not call soft esil pins from here
return NULL;
}
char *ckey = r_strf ("cmd.%s", name);
const char *cmd = sdb_const_get (DB, ckey, NULL);
if (R_STR_ISNOTEMPTY (cmd)) {

4
libr/core/cmd.c
View File

@ -11,7 +11,7 @@
#endif
#endif
static const char * const SPECIAL_CHARS_REGULAR = "@;~$#|`\"'()<>";
#define SPECIAL_CHARS "@;~$#|`\"'()<>"
static bool isAnExport(RBinSymbol *s) {
/* workaround for some bin plugs */
@ -5115,7 +5115,7 @@ fuji:
beach:
if (grep) {
char *old_grep = grep;
grep = unescape_special_chars (old_grep, SPECIAL_CHARS_REGULAR);
grep = unescape_special_chars (old_grep, SPECIAL_CHARS);
free (old_grep);
r_cons_grep_expression (grep);
free (grep);

1
libr/core/cmd_anal.inc.c
View File

@ -521,6 +521,7 @@ static RCoreHelpMessage help_msg_aep = {
"aepa", " ([addr])", "auto set pin in current or given address by flag name (see aaep)",
"aep", " [name] @ [addr]", "set pin",
"aep ", "memcpy=wf `dr?A1` `dr?A2` @r:A0", "override esil.cmd.pin for this pin name",
"aep ", "soft.show.r9=dr?r9", "set a 'soft.' esil pin, only executed in the disasm loop",
"aep", "", "list pins",
"aep.", "", "show pin name in current address if any",
"aepk", " [query]", "kuery the sdb of pins",

10
libr/core/disasm.c
View File

@ -1392,10 +1392,18 @@ static void ds_begin_comment(RDisasmState *ds) {
}
static void ds_print_pins(RDisasmState *ds) {
const char *lepin = r_anal_pin_at (ds->core->anal, ds->at);
RCore *core = ds->core;
const char *lepin = r_anal_pin_at (core->anal, ds->at);
if (R_STR_ISNOTEMPTY (lepin)) {
ds_begin_comment (ds);
ds_comment (ds, true, "%s [aep: %s]", ds->cmtoken, lepin);
if (r_str_startswith (lepin, "soft.")) {
const char *cmd = r_anal_pin_get (core->anal, lepin);
if (cmd) {
r_cons_newline ();
r_core_cmd0 (core, cmd);
}
}
}
}

33
test/db/cmd/cmd_aes
View File

@ -132,3 +132,36 @@ INFO: esil.dummy: Activated
INFO: Dummy: Operation executed
EOF
RUN
NAME=esil soft pins
FILE=bins/elf/ls
ARGS=-e bin.relocs.apply=true -e asm.lines=0 -e asm.bytes=0 -e asm.cmt.col=40
CMDS=<<EOF
'aep soft.dr9=dr?r9
aep hard.rbp=dr?rbp
pd 3
aep hard.rbp @ 0x5ae4
aep soft.dr9 @ 0x5ae6
e emu.str=1
dr r9=0x666
pd 3
aeim
dr PC=$$
3ds
dr?rbp
EOF
EXPECT=<<EOF
;-- entry0:
0x00005ae0 endbr64
0x00005ae4 xor ebp, ebp
0x00005ae6 mov r9, rdx
;-- entry0:
0x00005ae0 endbr64
0x00005ae4 xor ebp, ebp ; [aep: hard.rbp]
0x00005ae6 mov r9, rdx ; [aep: soft.dr9]
0x00000666
0x00178000
0x00178000
EOF
RUN