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@@ -2213,7 +2213,7 @@ void BasicBugReport::Profile(llvm::FoldingSetNodeID&
hash) const {
void PathSensitiveBugReport::Profile(llvm::FoldingSetNodeID &hash) const {
hash.AddInteger(static_cast(getKind()));
hash.AddPointer(&
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https://github.com/steakhal approved this pull request.
LGTM. I only had one minor question inline.
https://github.com/llvm/llvm-project/pull/98621
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steakhal wrote:
> > and you can read the docs for the checker, and the attribute at the links.
>
> I can't find any docs for this attribute. As I mentioned, I will fill new
> issues to fix couple of frontend issues and after that we can write down
> correct semantics of these attrs.
Thats fin
steakhal wrote:
FYI This PR is still not mentioned in the `clang/docs/ReleaseNotes.rst`.
We should have two entries there:
1) In [Attribute Changes in
Clang](https://github.com/llvm/llvm-project/blob/main/clang/docs/ReleaseNotes.rst#id34),
mentioning that calls can have at most one `ownership_
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@@ -1877,16 +1923,43 @@ static bool didPreviousFreeFail(ProgramStateRef State,
return false;
}
+static void printOwnershipTakesList(raw_ostream &os, CheckerContext &C,
+const Expr *E) {
+ if (const CallExpr *CE = dyn_cast(E)) {
+const
@@ -1877,16 +1923,43 @@ static bool didPreviousFreeFail(ProgramStateRef State,
return false;
}
+static void printOwnershipTakesList(raw_ostream &os, CheckerContext &C,
+const Expr *E) {
+ if (const CallExpr *CE = dyn_cast(E)) {
--
@@ -1877,16 +1923,43 @@ static bool didPreviousFreeFail(ProgramStateRef State,
return false;
}
+static void printOwnershipTakesList(raw_ostream &os, CheckerContext &C,
+const Expr *E) {
+ if (const CallExpr *CE = dyn_cast(E)) {
+const
@@ -1877,16 +1923,43 @@ static bool didPreviousFreeFail(ProgramStateRef State,
return false;
}
+static void printOwnershipTakesList(raw_ostream &os, CheckerContext &C,
+const Expr *E) {
+ if (const CallExpr *CE = dyn_cast(E)) {
+const
https://github.com/steakhal approved this pull request.
I think it looks great.
Only a few more stylistic remarks are left, but it should be already in a good
shape functional-wise. I'll let you decide if you wanna apply my suggestions or
not.
One more remark - this time w.r.t. the workflow. U
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@@ -103,14 +103,49 @@ using namespace std::placeholders;
namespace {
// Used to check correspondence between allocators and deallocators.
-enum AllocationFamily {
+enum AllocationFamilyKind {
AF_None,
AF_Malloc,
AF_CXXNew,
AF_CXXNewArray,
AF_IfNameIndex,
AF_A
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@@ -1122,7 +1157,7 @@ MallocChecker::performKernelMalloc(const CallEvent &Call,
CheckerContext &C,
if (TrueState && !FalseState) {
SVal ZeroVal = C.getSValBuilder().makeZeroVal(Ctx.CharTy);
return MallocMemAux(C, Call, Call.getArgExpr(0), ZeroVal, TrueState,
-
@@ -103,14 +103,49 @@ using namespace std::placeholders;
namespace {
// Used to check correspondence between allocators and deallocators.
-enum AllocationFamily {
+enum AllocationFamilyKind {
AF_None,
AF_Malloc,
AF_CXXNew,
AF_CXXNewArray,
AF_IfNameIndex,
AF_A
@@ -103,14 +103,49 @@ using namespace std::placeholders;
namespace {
// Used to check correspondence between allocators and deallocators.
-enum AllocationFamily {
+enum AllocationFamilyKind {
AF_None,
AF_Malloc,
AF_CXXNew,
AF_CXXNewArray,
AF_IfNameIndex,
AF_A
@@ -1490,7 +1532,7 @@ ProgramStateRef MallocChecker::ProcessZeroAllocCheck(
return State;
}
} else
-llvm_unreachable("not a CallExpr or CXXNewExpr");
+assert(false && "not a CallExpr or CXXNewExpr");
steakhal wrote:
```suggestion
} else {
@@ -103,14 +103,49 @@ using namespace std::placeholders;
namespace {
// Used to check correspondence between allocators and deallocators.
-enum AllocationFamily {
+enum AllocationFamilyKind {
AF_None,
AF_Malloc,
AF_CXXNew,
AF_CXXNewArray,
AF_IfNameIndex,
AF_A
@@ -14,6 +14,13 @@
void free(void *);
void __attribute((ownership_takes(malloc, 1))) my_free(void *);
+void __attribute((ownership_returns(malloc1))) *my_malloc1(size_t);
steakhal wrote:
Interesting.
https://github.com/llvm/llvm-project/pull/98941
__
@@ -103,14 +103,49 @@ using namespace std::placeholders;
namespace {
// Used to check correspondence between allocators and deallocators.
-enum AllocationFamily {
+enum AllocationFamilyKind {
AF_None,
AF_Malloc,
AF_CXXNew,
AF_CXXNewArray,
AF_IfNameIndex,
AF_A
@@ -24,3 +24,7 @@ void f15(int, int)
void f16(int *i, int *j) __attribute__((ownership_holds(foo, 1)))
__attribute__((ownership_holds(foo, 1))); // OK, same index
void f17(void*) __attribute__((ownership_takes(__, 1)));
void f18() __attribute__((ownership_takes(foo, 1))); //
https://github.com/steakhal commented:
It looks great! I only had one more thing to test.
Besides that it would be nice to advertise this in the
`clang/docs/ReleaseNotes.rst`.
Usually, from that release notes we also link to the checker or the relevant
doc pages - in this case it would be nice
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@@ -60,6 +67,41 @@ void testMalloc8() {
operator delete[](p); // expected-warning{{Memory allocated by malloc()
should be deallocated by free(), not operator delete[]}}
}
+void testMalloc9() {
+ int *p = (int *)my_malloc(sizeof(int));
+ my_free(p); // no warning
+}
+
+voi
@@ -103,14 +103,46 @@ using namespace std::placeholders;
namespace {
// Used to check correspondence between allocators and deallocators.
-enum AllocationFamily {
+enum AllocationFamilyKind {
AF_None,
AF_Malloc,
AF_CXXNew,
AF_CXXNewArray,
AF_IfNameIndex,
AF_A
@@ -14,6 +14,13 @@
void free(void *);
void __attribute((ownership_takes(malloc, 1))) my_free(void *);
+void __attribute((ownership_returns(malloc1))) *my_malloc1(size_t);
+void __attribute((ownership_takes(malloc1, 1))) my_free1(void *);
+
+void __attribute((ownership_returns(
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@@ -346,6 +350,36 @@ class CompoundVal : public NonLoc {
static bool classof(SVal V) { return V.getKind() == CompoundValKind; }
};
+/// W
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@@ -346,6 +350,36 @@ class CompoundVal : public NonLoc {
static bool classof(SVal V) { return V.getKind() == CompoundValKind; }
};
+/// W
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@@ -363,6 +397,18 @@ class LazyCompoundVal : public NonLoc {
/// It might return null.
const void *getStore() const;
+ /// This functi
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https://github.com/steakhal approved this pull request.
I think it's already in a good shape. I found barely any problems with the
wording.
https://github.co
@@ -3483,53 +3578,54 @@ PathDiagnosticPieceRef
MallocBugVisitor::VisitNode(const ExplodedNode *N,
Sym, "Returned allocated memory");
} else if (isReleased(RSCurr, RSPrev, S)) {
const auto Family = RSCurr->getAllocationFamily();
- switch (Family) {
-
@@ -14,6 +14,13 @@
void free(void *);
void __attribute((ownership_takes(malloc, 1))) my_free(void *);
+void __attribute((ownership_returns(malloc1))) *my_malloc1(size_t);
steakhal wrote:
What happens if you have a forward declaration to a malloc function with
@@ -1877,6 +1914,33 @@ static bool didPreviousFreeFail(ProgramStateRef State,
return false;
}
+static void printOwnershipTakesList(raw_ostream &os, CheckerContext &C,
+const Expr *E) {
+ if (const CallExpr *CE = dyn_cast(E)) {
+const
@@ -14,6 +14,13 @@
void free(void *);
void __attribute((ownership_takes(malloc, 1))) my_free(void *);
+void __attribute((ownership_returns(malloc1))) *my_malloc1(size_t);
+void __attribute((ownership_takes(malloc1, 1))) my_free1(void *);
+
+void __attribute((ownership_returns(
@@ -103,14 +103,46 @@ using namespace std::placeholders;
namespace {
// Used to check correspondence between allocators and deallocators.
-enum AllocationFamily {
+enum AllocationFamilyKind {
AF_None,
AF_Malloc,
AF_CXXNew,
AF_CXXNewArray,
AF_IfNameIndex,
AF_A
@@ -1918,26 +1982,54 @@ static bool printMemFnName(raw_ostream &os,
CheckerContext &C, const Expr *E) {
static void printExpectedAllocName(raw_ostream &os, AllocationFamily Family) {
- switch(Family) {
-case AF_Malloc: os << "malloc()"; return;
-case AF_CXXNew: os <
@@ -103,14 +103,46 @@ using namespace std::placeholders;
namespace {
// Used to check correspondence between allocators and deallocators.
-enum AllocationFamily {
+enum AllocationFamilyKind {
AF_None,
AF_Malloc,
AF_CXXNew,
AF_CXXNewArray,
AF_IfNameIndex,
AF_A
@@ -1877,6 +1914,33 @@ static bool didPreviousFreeFail(ProgramStateRef State,
return false;
}
+static void printOwnershipTakesList(raw_ostream &os, CheckerContext &C,
+const Expr *E) {
+ if (const CallExpr *CE = dyn_cast(E)) {
+const
@@ -194,7 +226,7 @@ class RefState {
void Profile(llvm::FoldingSetNodeID &ID) const {
ID.AddInteger(K);
ID.AddPointer(S);
-ID.AddInteger(Family);
+ID.AddInteger(Family.kind());
steakhal wrote:
This Profile wouldn't take the custom allocation
https://github.com/steakhal requested changes to this pull request.
Looks pretty good. Thanks for working on the issue.
I didn't see any major blocking issue with the PR, so good job on that!
Overall, be sure to follow the llvm [coding
style](https://llvm.org/docs/CodingStandards.html#name-type
@@ -1918,26 +1982,54 @@ static bool printMemFnName(raw_ostream &os,
CheckerContext &C, const Expr *E) {
static void printExpectedAllocName(raw_ostream &os, AllocationFamily Family) {
- switch(Family) {
-case AF_Malloc: os << "malloc()"; return;
-case AF_CXXNew: os <
@@ -14,6 +14,13 @@
void free(void *);
void __attribute((ownership_takes(malloc, 1))) my_free(void *);
+void __attribute((ownership_returns(malloc1))) *my_malloc1(size_t);
+void __attribute((ownership_takes(malloc1, 1))) my_free1(void *);
+
+void __attribute((ownership_returns(
@@ -103,14 +103,46 @@ using namespace std::placeholders;
namespace {
// Used to check correspondence between allocators and deallocators.
-enum AllocationFamily {
+enum AllocationFamilyKind {
AF_None,
AF_Malloc,
AF_CXXNew,
AF_CXXNewArray,
AF_IfNameIndex,
AF_A
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steakhal wrote:
> _(Technical detail: I'll be on vacation during the next week, so I won't see
> updates on this PR until the 22nd of July. If you want to merge this PR, feel
> free to do so.)_
No need to rush. Have a nice one!
https://githu
https://github.com/steakhal commented:
This makes sense.
I wonder if we could have something in between. I'm thinking of having the
concrete offset as a separate note, instead of having it part of the primary
message.
That way after BR selection, we would still deterministically pick the shorte
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@@ -1046,10 +1044,7 @@ bool GenericTaintChecker::generateReportIfTainted(const
Expr *E, StringRef Msg,
return false;
// Generate diagnostic.
steakhal wrote:
If we are there, maybe we should also assert that inside the register call,
before emplacing i
https://github.com/steakhal approved this pull request.
LGTM
https://github.com/llvm/llvm-project/pull/98157
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@@ -1122,10 +1131,20 @@ void
GenericTaintChecker::taintUnsafeSocketProtocol(const CallEvent &Call,
}
/// Checker registration
-void ento::registerGenericTaintChecker(CheckerManager &Mgr) {
+void ento::registerTaintPropagationChecker(CheckerManager &Mgr) {
Mgr.registerCheck
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https://github.com/llvm/llvm-project/pull/97418
>From 69f2b22cf5dc7a3a5b45c00cc867685dc66b397f Mon Sep 17 00:00:00 2001
From: Balazs Benics
Date: Tue, 2 Jul 2024 15:01:22 +0200
Subject: [PATCH] [analyzer][docs] Add clang-19 release notes for CSA
---
clang/d
steakhal wrote:
> > Thanks for the ping. Looks really nice! FYI I just came across a case last
> > week w.r.t asm gotos. You can have a read
> > [here](https://sonarsource.atlassian.net/browse/CPP-5459) if you are
> > interested in the subject.
>
> Thank you! Looks interesting. Does this mean
@@ -1122,10 +1131,20 @@ void
GenericTaintChecker::taintUnsafeSocketProtocol(const CallEvent &Call,
}
/// Checker registration
-void ento::registerGenericTaintChecker(CheckerManager &Mgr) {
+void ento::registerTaintPropagationChecker(CheckerManager &Mgr) {
Mgr.registerCheck
https://github.com/steakhal commented:
I like the separation. Thanks.
https://github.com/llvm/llvm-project/pull/98157
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@@ -1122,10 +1131,20 @@ void
GenericTaintChecker::taintUnsafeSocketProtocol(const CallEvent &Call,
}
/// Checker registration
-void ento::registerGenericTaintChecker(CheckerManager &Mgr) {
+void ento::registerTaintPropagationChecker(CheckerManager &Mgr) {
Mgr.registerCheck
@@ -2,10 +2,13 @@
Taint Analysis Configuration
-The Clang Static Analyzer uses taint analysis to detect security-related
issues in code.
-The backbone of taint analysis in the Clang SA is the `GenericTaintChecker`,
which the user can access via t
steakhal wrote:
> N4860 13 [class.derived]/2 mandates that base classes must be complete types.
> Before this patch, ProgramStatePartialTrait is a forward declaration of a
> class template, thus an incomplete type. Explicit specializations of forward
> declared templates are also incomplete ty
@@ -0,0 +1,90 @@
+//===- ExprEngineVisitTest.cpp ---===//
steakhal wrote:
I think this should have the same length as the closing one.
https://github.com/llvm/llvm-project/pull/95409
___
@@ -0,0 +1,90 @@
+//===- ExprEngineVisitTest.cpp ---===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WI
@@ -2057,11 +2057,16 @@ void ExprEngine::Visit(const Stmt *S, ExplodedNode
*Pred,
llvm_unreachable("Support for MatrixSubscriptExpr is not implemented.");
break;
-case Stmt::GCCAsmStmtClass:
+case Stmt::GCCAsmStmtClass: {
Bldr.takeNodes(Pred);
-
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https://github.com/steakhal requested changes to this pull request.
Thanks for the ping. Looks really nice!
FYI I just came across a case last week w.r.t asm gotos. You can have a read
[here](https://sonarsource.atlassian.net/browse/CPP-5459) if you are interested
in the subject.
https://githu
steakhal wrote:
Ping.
https://github.com/llvm/llvm-project/pull/97418
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@@ -346,6 +352,39 @@ class CompoundVal : public NonLoc {
static bool classof(SVal V) { return V.getKind() == CompoundValKind; }
};
+/// The simplest example of a concrete compound value is nonloc::CompoundVal,
+/// which represents a concrete r-value of an initializer-list o
@@ -326,6 +326,12 @@ class LocAsInteger : public NonLoc {
static bool classof(SVal V) { return V.getKind() == LocAsIntegerKind; }
};
+/// The simplest example of a concrete compound value is nonloc::CompoundVal,
+/// which represents a concrete r-value of an initializer-list
https://github.com/steakhal commented:
Makes sense. It's good to see some love for the docs.
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>From 69f2b22cf5dc7a3a5b45c00cc867685dc66b397f Mon Sep 17 00:00:00 2001
From: Balazs Benics
Date: Tue, 2 Jul 2024 15:01:22 +0200
Subject: [PATCH] [analyzer][docs] Add clang-19 release notes for CSA
---
clang/d
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https://github.com/steakhal created
https://github.com/llvm/llvm-project/pull/97418
The day is coming for creating the release branch for clang-19,
[scheduled](https://discourse.llvm.org/t/llvm-19-release-schedule-and-planning/79828)
for the 23rd of July.
Let's start syncing the ReleaseNotes,
https://github.com/steakhal milestoned
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https://github.com/steakhal created
https://github.com/llvm/llvm-project/pull/97416
Let's just move these under the
`Non-comprehensive list of changes in this release` section.
Resolves:
- https://github.com/llvm/llvm-project/pull/79261#issuecomment-2202950396
- https://github.com/llvm/llvm-p
steakhal wrote:
> Do you mean the documentation? If so, yes, that’s probably not the right
> place. I am on my phone but can you suggest a place where we should move this
> or just move it? I think that was an oversight.
Thanks. There is nothing urgent. I was just preparing a PR for syncing th
steakhal wrote:
> Release note added in
> [e33dc6b](https://github.com/llvm/llvm-project/commit/e33dc6b0282fb28d5289490981ad57d97d83db42),
> thank you for the improvements!
@AaronBallman It appears that that commit added an entry to the Static Analyzer
section, and I'm not sure if that's the
steakhal wrote:
@vgvassilev It appears that this PR added an entry to the Static Analyzer
section, and I'm not sure if that's the right one.
Could you please suggest an alternative section where I should move it?
https://github.com/llvm/llvm-project/pull/79261
__
Endre =?utf-8?q?F=C3=BCl=C3=B6p?= ,
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Endre =?utf-8?q?F=C3=BCl=C3=B6p?= ,
Endre =?utf-8?q?F=C3=BCl=C3=B6p?= ,
Endre =?utf-8?q?F=C3=BCl=C3=B6p?= ,
Endre =?utf-8?q?F=C3=BCl=C3=B6p?= ,
Endre =?utf-8?q?F=C3=BCl=C3=B6p?= ,
Endre =?utf
Endre =?utf-8?q?F=C3=BCl=C3=B6p?= ,
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steakhal wrote:
> 🤔 Deleting the html files could break some links on external sites, so I
> think it would be better to replace them with a very simple "This content was
> moved to ``" placeholder.
Maybe something l
https://github.com/steakhal closed
https://github.com/llvm/llvm-project/pull/97199
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https://github.com/steakhal updated
https://github.com/llvm/llvm-project/pull/97199
>From 6eeab014b09cfa0909c3ccb1b2d3e6fadadb983f Mon Sep 17 00:00:00 2001
From: Balazs Benics
Date: Mon, 1 Jul 2024 17:29:25 +0200
Subject: [PATCH 1/5] [analyzer] Fix crash in Stream checker when using void
point
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https://github.com/steakhal approved this pull request.
LGTM, thanks.
https://github.com/llvm/llvm-project/pull/97032
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@@ -0,0 +1,238 @@
+Command-Line Usage: CodeChecker and scan-build
+==
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+Command-Line Usage: CodeChecker and scan-build
+==
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+Command-Line Usage: CodeChecker and scan-build
+==
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@@ -0,0 +1,37 @@
+Obtaining the Static Analyzer
+
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+Command-Line Usage: CodeChecker and scan-build
+==
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https://github.com/steakhal edited
https://github.com/llvm/llvm-project/pull/97034
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https://github.com/steakhal closed
https://github.com/llvm/llvm-project/pull/97298
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@@ -1034,16 +1034,16 @@ void StreamChecker::preWrite(const FnDescription *Desc,
const CallEvent &Call,
C.addTransition(State);
}
-static std::optional getPointeeType(const MemRegion *R) {
+static QualType getPointeeType(const MemRegion *R) {
if (!R)
-return std::null
steakhal wrote:
This is the continuation patch of #97265.
https://github.com/llvm/llvm-project/pull/97298
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