=?utf-8?q?Bal=C3=A1zs_K=C3=A9ri?= <balazs.k...@ericsson.com>,
=?utf-8?q?Bal=C3=A1zs_K=C3=A9ri?= <balazs.k...@ericsson.com>,
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Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/76...@github.com>
================
@@ -2201,6 +2214,56 @@ void StdLibraryFunctionsChecker::initFunctionSummaries(
ErrnoNEZeroIrrelevant, GenericFailureMsg)
.ArgConstraint(NotNull(ArgNo(0))));
+ // int fgetc(FILE *stream);
+ // 'getc' is the same as 'fgetc' but may be a macro
+ addToFunctionSummaryMap(
+ {"getc", "fgetc"}, Signature(ArgTypes{FilePtrTy}, RetType{IntTy}),
+ Summary(NoEvalCall)
+ .Case({ReturnValueCondition(WithinRange, {{0, UCharRangeMax}})},
+ ErrnoMustNotBeChecked, GenericSuccessMsg)
+ .Case({ReturnValueCondition(WithinRange, SingleValue(EOFv))},
+ ErrnoNEZeroIrrelevant, GenericFailureMsg)
+ .ArgConstraint(NotNull(ArgNo(0))));
+
+ // int fputc(int c, FILE *stream);
+ // 'putc' is the same as 'fputc' but may be a macro
+ addToFunctionSummaryMap(
+ {"putc", "fputc"},
+ Signature(ArgTypes{IntTy, FilePtrTy}, RetType{IntTy}),
+ Summary(NoEvalCall)
+ .Case({ReturnValueCondition(BO_EQ, ArgNo(0))},
+ ErrnoMustNotBeChecked, GenericSuccessMsg)
+ .Case({ReturnValueCondition(WithinRange, SingleValue(EOFv))},
+ ErrnoNEZeroIrrelevant, GenericFailureMsg)
+ .ArgConstraint(NotNull(ArgNo(1)))
+ .ArgConstraint(
+ ArgumentCondition(0, WithinRange, {{0, UCharRangeMax}})));
+
+ // char *fgets(char *restrict s, int n, FILE *restrict stream);
+ addToFunctionSummaryMap(
+ "fgets",
+ Signature(ArgTypes{CharPtrRestrictTy, IntTy, FilePtrRestrictTy},
+ RetType{CharPtrTy}),
+ Summary(NoEvalCall)
+ .Case({ReturnValueCondition(BO_EQ, ArgNo(0))},
+ ErrnoMustNotBeChecked, GenericSuccessMsg)
+ .Case({IsNull(Ret)}, ErrnoNEZeroIrrelevant, GenericFailureMsg)
+ .ArgConstraint(NotNull(ArgNo(0)))
----------------
benshi001 wrote:
also it would be better to add a `FIXME` here.
https://github.com/llvm/llvm-project/pull/76979
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