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221
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1 // Check that the more specific checkers report and not the generic
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2 // StdCLibraryFunctionArgs checker.
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3
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4 // RUN: %clang_analyze_cc1 %s \
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5 // RUN: -analyzer-checker=core \
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6 // RUN: -analyzer-checker=apiModeling.StdCLibraryFunctions \
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7 // RUN: -analyzer-config apiModeling.StdCLibraryFunctions:ModelPOSIX=true \
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8 // RUN: -analyzer-checker=alpha.unix.StdCLibraryFunctionArgs \
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9 // RUN: -analyzer-checker=alpha.unix.Stream \
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10 // RUN: -triple x86_64-unknown-linux-gnu \
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11 // RUN: -verify
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12
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13
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14 // Make sure that all used functions have their summary loaded.
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15
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16 // RUN: %clang_analyze_cc1 %s \
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17 // RUN: -analyzer-checker=core \
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18 // RUN: -analyzer-checker=apiModeling.StdCLibraryFunctions \
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19 // RUN: -analyzer-config apiModeling.StdCLibraryFunctions:ModelPOSIX=true \
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20 // RUN: -analyzer-checker=alpha.unix.StdCLibraryFunctionArgs \
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21 // RUN: -analyzer-checker=alpha.unix.Stream \
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22 // RUN: -analyzer-config apiModeling.StdCLibraryFunctions:DisplayLoadedSummaries=true \
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23 // RUN: -triple x86_64-unknown-linux 2>&1 | FileCheck %s
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24
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25 // CHECK: Loaded summary for: int isalnum(int)
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26 // CHECK: Loaded summary for: unsigned long fread(void *restrict, size_t, size_t, FILE *restrict) __attribute__((nonnull(1)))
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27 // CHECK: Loaded summary for: int fileno(FILE *stream)
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28
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29 void initializeSummaryMap();
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30 // We analyze this function first, and the call expression inside initializes
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31 // the summary map. This way we force the loading of the summaries. The
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32 // summaries would not be loaded without this because during the first bug
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33 // report in WeakDependency::checkPreCall we stop further evaluation. And
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34 // StdLibraryFunctionsChecker lazily initializes its summary map from its
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35 // checkPreCall.
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36 void analyzeThisFirst() {
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37 initializeSummaryMap();
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38 }
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39
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40 typedef __typeof(sizeof(int)) size_t;
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41 struct FILE;
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42 typedef struct FILE FILE;
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43
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44 int isalnum(int);
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45 size_t fread(void *restrict, size_t, size_t, FILE *restrict) __attribute__((nonnull(1)));
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46 int fileno(FILE *stream);
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47
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48 void test_uninit_arg() {
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49 int v;
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50 int r = isalnum(v); // \
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51 // expected-warning{{1st function call argument is an uninitialized value [core.CallAndMessage]}}
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52 (void)r;
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53 }
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54
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55 void test_notnull_arg(FILE *F) {
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56 int *p = 0;
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57 fread(p, sizeof(int), 5, F); // \
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58 expected-warning{{Null pointer passed to 1st parameter expecting 'nonnull' [core.NonNullParamChecker]}}
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59 }
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60
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61 void test_notnull_stream_arg() {
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62 fileno(0); // \
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63 // expected-warning{{Stream pointer might be NULL [alpha.unix.Stream]}}
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64 }
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