forked from OSchip/llvm-project
65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
// Check that the more specific checkers report and not the generic
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// StdCLibraryFunctionArgs checker.
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// RUN: %clang_analyze_cc1 %s \
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// RUN: -analyzer-checker=core \
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// RUN: -analyzer-checker=apiModeling.StdCLibraryFunctions \
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// RUN: -analyzer-config apiModeling.StdCLibraryFunctions:ModelPOSIX=true \
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// RUN: -analyzer-checker=alpha.unix.StdCLibraryFunctionArgs \
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// RUN: -analyzer-checker=alpha.unix.Stream \
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// RUN: -triple x86_64-unknown-linux-gnu \
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// RUN: -verify
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// Make sure that all used functions have their summary loaded.
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// RUN: %clang_analyze_cc1 %s \
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// RUN: -analyzer-checker=core \
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// RUN: -analyzer-checker=apiModeling.StdCLibraryFunctions \
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// RUN: -analyzer-config apiModeling.StdCLibraryFunctions:ModelPOSIX=true \
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// RUN: -analyzer-checker=alpha.unix.StdCLibraryFunctionArgs \
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// RUN: -analyzer-checker=alpha.unix.Stream \
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// RUN: -analyzer-config apiModeling.StdCLibraryFunctions:DisplayLoadedSummaries=true \
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// RUN: -triple x86_64-unknown-linux 2>&1 | FileCheck %s
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// CHECK: Loaded summary for: int isalnum(int)
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// CHECK: Loaded summary for: unsigned long fread(void *restrict, size_t, size_t, FILE *restrict) __attribute__((nonnull(1)))
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// CHECK: Loaded summary for: int fileno(FILE *stream)
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void initializeSummaryMap();
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// We analyze this function first, and the call expression inside initializes
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// the summary map. This way we force the loading of the summaries. The
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// summaries would not be loaded without this because during the first bug
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// report in WeakDependency::checkPreCall we stop further evaluation. And
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// StdLibraryFunctionsChecker lazily initializes its summary map from its
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// checkPreCall.
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void analyzeThisFirst() {
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initializeSummaryMap();
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}
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typedef __typeof(sizeof(int)) size_t;
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struct FILE;
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typedef struct FILE FILE;
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int isalnum(int);
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size_t fread(void *restrict, size_t, size_t, FILE *restrict) __attribute__((nonnull(1)));
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int fileno(FILE *stream);
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void test_uninit_arg() {
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int v;
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int r = isalnum(v); // \
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// expected-warning{{1st function call argument is an uninitialized value [core.CallAndMessage]}}
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(void)r;
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}
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void test_notnull_arg(FILE *F) {
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int *p = 0;
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fread(p, sizeof(int), 5, F); // \
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expected-warning{{Null pointer passed to 1st parameter expecting 'nonnull' [core.NonNullParamChecker]}}
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}
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void test_notnull_stream_arg() {
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fileno(0); // \
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// expected-warning{{Stream pointer might be NULL [alpha.unix.Stream]}}
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}
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