| 1 | // RUN: %clang_analyze_cc1 -triple x86_64-pc-linux-gnu -analyzer-checker=core,valist.Uninitialized,valist.CopyToSelf -analyzer-output=text -analyzer-store=region -verify %s |
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| 2 | |
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| 3 | #include "Inputs/system-header-simulator-for-valist.h" |
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| 4 | |
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| 5 | // This is called in call_inlined_uses_arg(), |
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| 6 | // and the warning is generated during the analysis of call_inlined_uses_arg(). |
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| 7 | void inlined_uses_arg(va_list arg) { |
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| 8 | (void)va_arg(arg, int); // expected-warning{{va_arg() is called on an uninitialized va_list}} |
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| 9 | // expected-note@-1{{va_arg() is called on an uninitialized va_list}} |
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| 10 | } |
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| 11 | |
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| 12 | void call_inlined_uses_arg(int fst, ...) { |
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| 13 | va_list va; |
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| 14 | inlined_uses_arg(va); // expected-note{{Calling 'inlined_uses_arg'}} |
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| 15 | } |
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| 16 | |
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| 17 | void f6(va_list *fst, ...) { |
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| 18 | va_start(*fst, fst); |
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| 19 | // FIXME: There should be no warning for this. |
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| 20 | (void)va_arg(*fst, int); // expected-warning{{va_arg() is called on an uninitialized va_list}} |
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| 21 | // expected-note@-1{{va_arg() is called on an uninitialized va_list}} |
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| 22 | va_end(*fst); |
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| 23 | } |
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| 24 | |
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| 25 | void call_vprintf_bad(int isstring, ...) { |
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| 26 | va_list va; |
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| 27 | vprintf(isstring ? "%s" : "%d", va); // expected-warning{{Function 'vprintf' is called with an uninitialized va_list argument}} |
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| 28 | // expected-note@-1{{Function 'vprintf' is called with an uninitialized va_list argument}} |
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| 29 | // expected-note@-2{{Assuming 'isstring' is 0}} |
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| 30 | // expected-note@-3{{'?' condition is false}} |
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| 31 | } |
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| 32 | |
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| 33 | void call_vsprintf_bad(char *buffer, ...) { |
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| 34 | va_list va; |
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| 35 | va_start(va, buffer); // expected-note{{Initialized va_list}} |
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| 36 | va_end(va); // expected-note{{Ended va_list}} |
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| 37 | vsprintf(buffer, "%s %d %d %lf %03d", va); // expected-warning{{Function 'vsprintf' is called with an uninitialized va_list argument}} |
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| 38 | // expected-note@-1{{Function 'vsprintf' is called with an uninitialized va_list argument}} |
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| 39 | } |
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| 40 | |
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| 41 | |
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