[C++] querying was stuck on Call.getArgument without detailed log
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Description
related log:
```log
[2024-03-26 13:08:51] (664s) >>> Created relation gadgets#0b9c9d51::getParaPointerIndex#1#ff/2@0e72064q with 5120 rows and digest 8c17e92ufpma1sptlsm3ibgk848.
[2024-03-26 13:08:51] (664s) No need to promote strings for predicate gadgets#0b9c9d51::getParaPointerIndex#1#ff as it does not contain computed strings.
[2024-03-26 13:08:51] (664s) >>> Created relation gadgets#0b9c9d51::getParaPointerIndex#1#ff/2@31944318 with 5120 rows and digest 8c17e92ufpma1sptlsm3ibgk848.
[2024-03-26 13:08:51] (664s) Starting to evaluate predicate _Call#39248e3c::Call::getArgument#1#dispred#fff___Call#39248e3c::FunctionCall::getTarget#0#dispred#f__#shared/3@77f45a6s
[2024-03-26 13:08:51] (664s) Starting to evaluate predicate _Call#39248e3c::Call::getArgument#1#dispred#fff___Call#39248e3c::FunctionCall::getTarget#0#dispred#f__#shared/3@6366f098
[2024-03-26 13:08:56] (669s) Tuple counts for _Call#39248e3c::Call::getArgument#1#dispred#fff___Call#39248e3c::FunctionCall::getTarget#0#dispred#f__#shared/3@6366f098 after 5s:
4234450 ~3% {2} r1 = SCAN __Call#39248e3c::FunctionCall::getTarget#0#dispred#ff_10#join_rhs_Enclosing#c50c5fbf::stmtEnclosingE__#shared OUTPUT In.0 'arg1', In.1 'arg0'
4234450 ~3% {2} r2 = STREAM DEDUP r1
9083004 ~0% {3} r3 = JOIN r2 WITH Call#39248e3c::Call::getArgument#1#dispred#fff ON FIRST 1 OUTPUT Lhs.1 'arg0', Lhs.0 'arg1', Rhs.1 'arg2'
return r3
[2024-03-26 13:08:56] (669s) Tuple counts for _Call#39248e3c::Call::getArgument#1#dispred#fff___Call#39248e3c::FunctionCall::getTarget#0#dispred#f__#shared/3@77f45a6s after 5s:
4214836 ~3% {2} r1 = SCAN __Call#39248e3c::FunctionCall::getTarget#0#dispred#ff_10#join_rhs_Enclosing#c50c5fbf::stmtEnclosingE__#shared OUTPUT In.0 'arg1', In.1 'arg0'
4214836 ~3% {2} r2 = STREAM DEDUP r1
9045526 ~0% {3} r3 = JOIN r2 WITH Call#39248e3c::Call::getArgument#1#dispred#fff ON FIRST 1 OUTPUT Lhs.1 'arg0', Lhs.0 'arg1', Rhs.1 'arg2'
return r3
[2024-03-26 13:08:56] (669s) Pausing evaluation to evict 1.20GiB ARRAYS at sequence stamp o+5440836
[2024-03-26 13:08:56] (669s) Unpausing evaluation: 1.23GiB forgotten: 1.23GiB UNREACHABLE (1989 items up to o+5440829)
[2024-03-26 13:08:56] (669s) >>> Created relation _Call#39248e3c::Call::getArgument#1#dispred#fff___Call#39248e3c::FunctionCall::getTarget#0#dispred#f__#shared/3@6366f098 with 9083004 rows and digest 32582d05tbfpmf64m28a66ehuh0.
[2024-03-26 13:08:56] (669s) Starting to evaluate predicate _Call#39248e3c::Call::getArgument#1#dispred#fff__Call#39248e3c::Call::getArgument#1#dispred#fff___Ca__#join_rhs/2@f5edcbe0
[2024-03-26 13:08:56] (669s) Starting to evaluate predicate _Call#39248e3c::Call::getArgument#1#dispred#fff__Call#39248e3c::Call::getArgument#1#dispred#fff___Ca__#join_rhs#1/2@96b050l9
[2024-03-26 13:08:56] (669s) >>> Created relation _Call#39248e3c::Call::getArgument#1#dispred#fff___Call#39248e3c::FunctionCall::getTarget#0#dispred#f__#shared/3@77f45a6s with 9045526 rows and digest 328843tueune55pdvlb29cmkcc8.
[2024-03-26 13:08:56] (669s) Starting to evaluate predicate _Call#39248e3c::Call::getArgument#1#dispred#fff__Call#39248e3c::Call::getArgument#1#dispred#fff___Ca__#join_rhs/2@173330kq
[2024-03-26 13:08:57] (669s) Starting to evaluate predicate _Call#39248e3c::Call::getArgument#1#dispred#fff__Call#39248e3c::Call::getArgument#1#dispred#fff___Ca__#join_rhs#1/2@67ea54jp
```
My query has been running far far more than 669s, but no further output log, it's confusing for me to debug.
Related query:
```codeql
exists(
ReturnStmt ret, Expr retexpr, Function func, Expr argexpr, int paraindex |
func = getFunctionDefinition(fc.getTarget()) and
ret.getEnclosingFunction() = func and
retexpr = ret.getExpr() and
exists(fc.getArgument(paraindex)) |
(
if isFromParaPointer(ret) // local taint
then (
paraindex = getParaPointerIndex(ret) and
argexpr = fc.getArgument(paraindex) and
result = isTarget(argexpr, res, depth)
)
else result = isTarget(retexpr, res, depth - 1)
)
)
```
These LoCs are for checking whether a `FunctionCall`'s returned `Expr` is from (local taint) its arguments, and determine what's next on recursive back-tracing `isTarget()`.
I'm using a out-dated version of CodeQL CLI, maybe I'll update my tool chains first. But still hope to be helped~
Guide de contribution
Ouvrir le guide de contribution
Piste de recherche
Commencez par le log associé et la requête CodeQL, en vous concentrant sur les évaluations de Call.getArgument et sur le point où la sortie s'arrête après 669s. Mettez d'abord à jour la toolchain CodeQL CLI obsolète, puis relancez la requête et comparez si la sortie détaillée de la progression continue ; la tâche est terminée lorsque le comportement de diagnostic manquant ou le goulot d'étranglement de la requête est identifié.
Rédigé par le modèle d'indexation à partir du texte de l'issue.
Évaluation
- Stack technique
- cpp
- Domaine
- developer-experience, performance
- Type d'issue
- Bug
- Difficulté
- 3/5
- Temps estimé
- 1-2 jours
- Activité
- À l'abandon
- Clarté
- À clarifier
- Accessibilité débutants
- 30/100