derek.holloway
7502bf64a4
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67 lines
2.7 KiB
C++
67 lines
2.7 KiB
C++
// Test the -cc1 flag. There's no -fno-... option in -cc1 invocations,
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// just the positive option.
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// RUN: %clang_cc1 -std=c++20 -Wunsafe-buffer-usage -verify=OFF %s
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// RUN: %clang_cc1 -std=c++20 -Wunsafe-buffer-usage -verify=ON %s \
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// RUN: -fsafe-buffer-usage-suggestions
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// Test driver flags. Now there's both -f... and -fno-... to worry about.
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// RUN: %clang -fsyntax-only -std=c++20 -Wunsafe-buffer-usage \
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// RUN: -Xclang -verify=OFF %s
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// RUN: %clang -fsyntax-only -std=c++20 -Wunsafe-buffer-usage \
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// RUN: -fsafe-buffer-usage-suggestions \
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// RUN: -Xclang -verify=ON %s
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// RUN: %clang -fsyntax-only -std=c++20 -Wunsafe-buffer-usage \
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// RUN: -fno-safe-buffer-usage-suggestions \
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// RUN: -Xclang -verify=OFF %s
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// In case of driver flags, last flag takes precedence.
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// RUN: %clang -fsyntax-only -std=c++20 -Wunsafe-buffer-usage \
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// RUN: -fsafe-buffer-usage-suggestions \
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// RUN: -fno-safe-buffer-usage-suggestions \
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// RUN: -Xclang -verify=OFF %s
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// RUN: %clang -fsyntax-only -std=c++20 -Wunsafe-buffer-usage \
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// RUN: -fno-safe-buffer-usage-suggestions \
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// RUN: -fsafe-buffer-usage-suggestions \
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// RUN: -Xclang -verify=ON %s
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// Passing through -Xclang.
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// RUN: %clang -fsyntax-only -std=c++20 -Wunsafe-buffer-usage \
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// RUN: -Xclang -fsafe-buffer-usage-suggestions \
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// RUN: -Xclang -verify=ON %s
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// -Xclang flags take precedence over driver flags.
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// RUN: %clang -fsyntax-only -std=c++20 -Wunsafe-buffer-usage \
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// RUN: -Xclang -fsafe-buffer-usage-suggestions \
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// RUN: -fno-safe-buffer-usage-suggestions \
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// RUN: -Xclang -verify=ON %s
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// RUN: %clang -fsyntax-only -std=c++20 -Wunsafe-buffer-usage \
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// RUN: -fno-safe-buffer-usage-suggestions \
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// RUN: -Xclang -fsafe-buffer-usage-suggestions \
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// RUN: -Xclang -verify=ON %s
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[[clang::unsafe_buffer_usage]] void bar(int *);
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void foo(int *x) { // \
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// ON-warning{{'x' is an unsafe pointer used for buffer access}}
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// FIXME: Better "OFF" warning?
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x[5] = 10; // \
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// ON-note {{used in buffer access here}} \
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// OFF-warning{{unsafe buffer access}} \
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// OFF-note {{pass -fsafe-buffer-usage-suggestions to receive code hardening suggestions}}
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x += 5; // \
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// ON-note {{used in pointer arithmetic here}} \
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// OFF-warning{{unsafe pointer arithmetic}} \
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// OFF-note {{pass -fsafe-buffer-usage-suggestions to receive code hardening suggestions}}
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bar(x); // \
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// ON-warning{{function introduces unsafe buffer manipulation}} \
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// OFF-warning{{function introduces unsafe buffer manipulation}} \
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// OFF-note {{pass -fsafe-buffer-usage-suggestions to receive code hardening suggestions}}
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}
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