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Merged
merged 2 commits into from
Aug 11, 2025
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C++: Fix queries after #20126 #936

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bfdf262
C++: Block flow into thread-specific storage creating functions (i.e.…
MathiasVP Jul 25, 2025
086a4ed
C++: Accept test changes to another query.
MathiasVP Jul 25, 2025
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29 changes: 21 additions & 8 deletions c/cert/src/rules/CON30-C/CleanUpThreadSpecificStorage.ql
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Original file line number Diff line number Diff line change
Expand Up @@ -22,15 +22,28 @@ import codingstandards.c.cert
import codingstandards.cpp.ConcurrencyNew
import semmle.code.cpp.dataflow.new.DataFlow

newtype Direction =
Incoming() or
Outgoing()

predicate isSource(DataFlow::Node node, Direction d) {
exists(TSSCreateFunctionCall tsc, Expr e |
// the only requirement of the source is that at some point
// it refers to the key of a create statement
e.getParent*() = tsc.getKey()
|
d = Outgoing() and
e = [node.asExpr(), node.asDefiningArgument()]
or
d = Incoming() and
e = [node.asExpr(), node.asIndirectArgument()]
)
}

module TssCreateToTssDeleteConfig implements DataFlow::ConfigSig {
predicate isSource(DataFlow::Node node) {
exists(TSSCreateFunctionCall tsc, Expr e |
// the only requirement of the source is that at some point
// it refers to the key of a create statement
e.getParent*() = tsc.getKey() and
(e = node.asDefiningArgument() or e = node.asExpr())
)
}
predicate isSource(DataFlow::Node node) { isSource(node, Outgoing()) }

predicate isBarrierIn(DataFlow::Node node) { isSource(node, Incoming()) }

predicate isSink(DataFlow::Node node) {
exists(TSSDeleteFunctionCall tsd, Expr e |
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22 changes: 22 additions & 0 deletions c/misra/test/rules/RULE-21-26/TimedlockOnInappropriateMutexType.expected
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Original file line number Diff line number Diff line change
@@ -1,11 +1,25 @@
edges
| test.c:3:7:3:8 | *g1 | test.c:3:7:3:8 | *g1 | provenance | |
| test.c:3:7:3:8 | *g1 | test.c:14:17:14:19 | *& ... | provenance | |
| test.c:3:7:3:8 | *g1 | test.c:15:14:15:16 | *& ... | provenance | |
| test.c:4:7:4:8 | *g2 | test.c:4:7:4:8 | *g2 | provenance | |
| test.c:4:7:4:8 | *g2 | test.c:18:17:18:19 | *& ... | provenance | |
| test.c:4:7:4:8 | *g2 | test.c:19:14:19:16 | *& ... | provenance | |
| test.c:10:24:10:24 | *m | test.c:10:24:10:24 | *m | provenance | |
| test.c:10:24:10:24 | *m | test.c:10:43:10:43 | *m | provenance | |
| test.c:10:24:10:24 | *m | test.c:10:43:10:43 | *m | provenance | |
| test.c:13:12:13:14 | mtx_init output argument | test.c:3:7:3:8 | *g1 | provenance | |
| test.c:13:12:13:14 | mtx_init output argument | test.c:14:17:14:19 | *& ... | provenance | |
| test.c:13:12:13:14 | mtx_init output argument | test.c:15:14:15:16 | *& ... | provenance | |
| test.c:15:14:15:16 | *& ... | test.c:10:24:10:24 | *m | provenance | |
| test.c:15:14:15:16 | *& ... | test.c:15:14:15:16 | doTimeLock output argument | provenance | |
| test.c:15:14:15:16 | doTimeLock output argument | test.c:3:7:3:8 | *g1 | provenance | |
| test.c:17:12:17:14 | mtx_init output argument | test.c:4:7:4:8 | *g2 | provenance | |
| test.c:17:12:17:14 | mtx_init output argument | test.c:18:17:18:19 | *& ... | provenance | |
| test.c:17:12:17:14 | mtx_init output argument | test.c:19:14:19:16 | *& ... | provenance | |
| test.c:19:14:19:16 | *& ... | test.c:10:24:10:24 | *m | provenance | |
| test.c:19:14:19:16 | *& ... | test.c:19:14:19:16 | doTimeLock output argument | provenance | |
| test.c:19:14:19:16 | doTimeLock output argument | test.c:4:7:4:8 | *g2 | provenance | |
| test.c:30:12:30:14 | mtx_init output argument | test.c:31:17:31:19 | *& ... | provenance | |
| test.c:30:12:30:14 | mtx_init output argument | test.c:32:14:32:16 | *& ... | provenance | |
| test.c:32:14:32:16 | *& ... | test.c:10:24:10:24 | *m | provenance | |
Expand All @@ -16,14 +30,20 @@ edges
| test.c:44:14:44:18 | *& ... | test.c:10:24:10:24 | *m | provenance | |
| test.c:44:15:44:16 | *l3 [m] | test.c:44:14:44:18 | *& ... | provenance | |
nodes
| test.c:3:7:3:8 | *g1 | semmle.label | *g1 |
| test.c:4:7:4:8 | *g2 | semmle.label | *g2 |
| test.c:10:24:10:24 | *m | semmle.label | *m |
| test.c:10:24:10:24 | *m | semmle.label | *m |
| test.c:10:24:10:24 | *m | semmle.label | *m |
| test.c:10:43:10:43 | *m | semmle.label | *m |
| test.c:13:12:13:14 | mtx_init output argument | semmle.label | mtx_init output argument |
| test.c:14:17:14:19 | *& ... | semmle.label | *& ... |
| test.c:15:14:15:16 | *& ... | semmle.label | *& ... |
| test.c:15:14:15:16 | doTimeLock output argument | semmle.label | doTimeLock output argument |
| test.c:17:12:17:14 | mtx_init output argument | semmle.label | mtx_init output argument |
| test.c:18:17:18:19 | *& ... | semmle.label | *& ... |
| test.c:19:14:19:16 | *& ... | semmle.label | *& ... |
| test.c:19:14:19:16 | doTimeLock output argument | semmle.label | doTimeLock output argument |
| test.c:30:12:30:14 | mtx_init output argument | semmle.label | mtx_init output argument |
| test.c:31:17:31:19 | *& ... | semmle.label | *& ... |
| test.c:32:14:32:16 | *& ... | semmle.label | *& ... |
Expand All @@ -34,6 +54,8 @@ nodes
| test.c:44:14:44:18 | *& ... | semmle.label | *& ... |
| test.c:44:15:44:16 | *l3 [m] | semmle.label | *l3 [m] |
subpaths
| test.c:15:14:15:16 | *& ... | test.c:10:24:10:24 | *m | test.c:10:24:10:24 | *m | test.c:15:14:15:16 | doTimeLock output argument |
| test.c:19:14:19:16 | *& ... | test.c:10:24:10:24 | *m | test.c:10:24:10:24 | *m | test.c:19:14:19:16 | doTimeLock output argument |
#select
| test.c:10:43:10:43 | *m | test.c:13:12:13:14 | mtx_init output argument | test.c:10:43:10:43 | *m | Call to mtx_timedlock with mutex which is $@ without flag 'mtx_timed'. | test.c:13:12:13:14 | mtx_init output argument | initialized |
| test.c:10:43:10:43 | *m | test.c:17:12:17:14 | mtx_init output argument | test.c:10:43:10:43 | *m | Call to mtx_timedlock with mutex which is $@ without flag 'mtx_timed'. | test.c:17:12:17:14 | mtx_init output argument | initialized |
Expand Down
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