llvm-project/clang/test/Analysis/keychainAPI-diagnostic-visitor.m
Balazs Benics ffe7950ebc Reland "[analyzer] Deprecate -analyzer-store region flag"
I'm trying to remove unused options from the `Analyses.def` file, then
merge the rest of the useful options into the `AnalyzerOptions.def`.
Then make sure one can set these by an `-analyzer-config XXX=YYY` style
flag.
Then surface the `-analyzer-config` to the `clang` frontend;

After all of this, we can pursue the tablegen approach described
https://discourse.llvm.org/t/rfc-tablegen-clang-static-analyzer-engine-options-for-better-documentation/61488

In this patch, I'm proposing flag deprecations.
We should support deprecated analyzer flags for exactly one release. In
this case I'm planning to drop this flag in `clang-16`.

In the clang frontend, now we won't pass this option to the cc1
frontend, rather emit a warning diagnostic reminding the users about
this deprecated flag, which will be turned into error in clang-16.

Unfortunately, I had to remove all the tests referring to this flag,
causing a mass change. I've also added a test for checking this warning.

I've seen that `scan-build` also uses this flag, but I think we should
remove that part only after we turn this into a hard error.

Reviewed By: martong

Differential Revision: https://reviews.llvm.org/D126215
2022-06-14 09:20:41 +02:00

36 lines
1.4 KiB
Objective-C

// RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=osx.SecKeychainAPI -analyzer-output=text -verify %s
// This file is for testing enhanced diagnostics produced by the default SecKeychainAPI checker.
typedef unsigned int OSStatus;
typedef unsigned int SecKeychainAttributeList;
typedef unsigned int SecKeychainItemRef;
typedef unsigned int SecItemClass;
typedef unsigned int UInt32;
enum {
noErr = 0,
GenericError = 1
};
OSStatus SecKeychainItemCopyContent (
SecKeychainItemRef itemRef,
SecItemClass *itemClass,
SecKeychainAttributeList *attrList,
UInt32 *length,
void **outData
);
void DellocWithCFStringCreate4(void) {
unsigned int *ptr = 0;
OSStatus st = 0;
UInt32 length;
char *bytes;
char *x;
st = SecKeychainItemCopyContent(2, ptr, ptr, &length, (void **)&bytes); // expected-note {{Data is allocated here}}
x = bytes;
if (st == noErr) // expected-note {{Assuming 'st' is equal to noErr}} // expected-note{{Taking true branch}}
x = bytes;;
length++; // expected-warning {{Allocated data is not released}} // expected-note{{Allocated data is not released}}
}