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[analyzer] Path notes for the MismatchedDeallocator checker. 

llvm-svn: 178862
This commit is contained in:
Anton Yartsev 2013-04-05 11:25:10 +00:00
parent cd65509322
commit f0593d67a7
2 changed files with 165 additions and 4 deletions
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12
clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
View File

@ -293,8 +293,8 @@ private:
void ReportBadFree(CheckerContext &C, SVal ArgVal, SourceRange Range,
const Expr *DeallocExpr) const;
void ReportMismatchedDealloc(CheckerContext &C, SourceRange Range,
const Expr *DeallocExpr,
const RefState *RS) const;
const Expr *DeallocExpr, const RefState *RS,
SymbolRef Sym) const;
void ReportOffsetFree(CheckerContext &C, SVal ArgVal, SourceRange Range,
const Expr *DeallocExpr,
const Expr *AllocExpr = 0) const;
@ -1013,7 +1013,8 @@ ProgramStateRef MallocChecker::FreeMemAux(CheckerContext &C,
// Check if an expected deallocation function matches the real one.
if (!DeallocMatchesAlloc && RsBase->isAllocated()) {
ReportMismatchedDealloc(C, ArgExpr->getSourceRange(), ParentExpr, RsBase);
ReportMismatchedDealloc(C, ArgExpr->getSourceRange(), ParentExpr, RsBase,
SymBase);
return 0;
}
@ -1236,7 +1237,8 @@ void MallocChecker::ReportBadFree(CheckerContext &C, SVal ArgVal,
void MallocChecker::ReportMismatchedDealloc(CheckerContext &C,
SourceRange Range,
const Expr *DeallocExpr,
const RefState *RS) const {
const RefState *RS,
SymbolRef Sym) const {
if (!Filter.CMismatchedDeallocatorChecker)
return;
@ -1266,7 +1268,9 @@ void MallocChecker::ReportMismatchedDealloc(CheckerContext &C,
os << ", not " << DeallocOs.str();
BugReport *R = new BugReport(*BT_MismatchedDealloc, os.str(), N);
R->markInteresting(Sym);
R->addRange(Range);
R->addVisitor(new MallocBugVisitor(Sym));
C.emitReport(R);
}
}

157
clang/test/Analysis/MismatchedDeallocator-path-notes.cpp Normal file
View File

@ -0,0 +1,157 @@
// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.MismatchedDeallocator -analyzer-output=text -verify %s
// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.MismatchedDeallocator -analyzer-output=plist %s -o %t.plist
// RUN: FileCheck --input-file=%t.plist %s
void test() {
int *p = new int[1];
// expected-note@-1 {{Memory is allocated}}
delete p; // expected-warning {{Memory allocated by 'new[]' should be deallocated by 'delete[]', not 'delete'}}
// expected-note@-1 {{Memory allocated by 'new[]' should be deallocated by 'delete[]', not 'delete'}}
}
// CHECK: <key>diagnostics</key>
// CHECK-NEXT:<array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>path</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>kind</key><string>control</string>
// CHECK-NEXT: <key>edges</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>start</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>6</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>6</integer>
// CHECK-NEXT: <key>col</key><integer>5</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
// CHECK-NEXT: <key>end</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>6</integer>
// CHECK-NEXT: <key>col</key><integer>12</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>6</integer>
// CHECK-NEXT: <key>col</key><integer>14</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>kind</key><string>event</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>6</integer>
// CHECK-NEXT: <key>col</key><integer>12</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <key>ranges</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>6</integer>
// CHECK-NEXT: <key>col</key><integer>12</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>6</integer>
// CHECK-NEXT: <key>col</key><integer>21</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
// CHECK-NEXT: </array>
// CHECK-NEXT: <key>depth</key><integer>0</integer>
// CHECK-NEXT: <key>extended_message</key>
// CHECK-NEXT: <string>Memory is allocated</string>
// CHECK-NEXT: <key>message</key>
// CHECK-NEXT: <string>Memory is allocated</string>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>kind</key><string>control</string>
// CHECK-NEXT: <key>edges</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>start</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>6</integer>
// CHECK-NEXT: <key>col</key><integer>12</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>6</integer>
// CHECK-NEXT: <key>col</key><integer>14</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
// CHECK-NEXT: <key>end</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>8</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>8</integer>
// CHECK-NEXT: <key>col</key><integer>8</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>kind</key><string>event</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>8</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <key>ranges</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>8</integer>
// CHECK-NEXT: <key>col</key><integer>10</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>8</integer>
// CHECK-NEXT: <key>col</key><integer>10</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
// CHECK-NEXT: </array>
// CHECK-NEXT: <key>depth</key><integer>0</integer>
// CHECK-NEXT: <key>extended_message</key>
// CHECK-NEXT: <string>Memory allocated by &apos;new[]&apos; should be deallocated by &apos;delete[]&apos;, not &apos;delete&apos;</string>
// CHECK-NEXT: <key>message</key>
// CHECK-NEXT: <string>Memory allocated by &apos;new[]&apos; should be deallocated by &apos;delete[]&apos;, not &apos;delete&apos;</string>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
// CHECK-NEXT: <key>description</key><string>Memory allocated by &apos;new[]&apos; should be deallocated by &apos;delete[]&apos;, not &apos;delete&apos;</string>
// CHECK-NEXT: <key>category</key><string>Memory Error</string>
// CHECK-NEXT: <key>type</key><string>Bad deallocator</string>
// CHECK-NEXT: <key>issue_context_kind</key><string>function</string>
// CHECK-NEXT: <key>issue_context</key><string>test</string>
// CHECK-NEXT: <key>issue_hash</key><string>3</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
// CHECK-NEXT: <key>line</key><integer>8</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </dict>
// CHECK-NEXT:</array>