5b4dda550e
Complete support for fast8: - amend shadow size and mapping in runtime - remove fast16 mode and -dfsan-fast-16-labels flag - remove legacy mode and make fast8 mode the default - remove dfsan-fast-8-labels flag - remove functions in dfsan interface only applicable to legacy - remove legacy-related instrumentation code and tests - update documentation. Reviewed By: stephan.yichao.zhao, browneee Differential Revision: https://reviews.llvm.org/D103745
27 lines
1002 B
C
27 lines
1002 B
C
// RUN: %clang_dfsan %s -fsanitize-ignorelist=%S/Inputs/flags_abilist.txt -mllvm -dfsan-debug-nonzero-labels -o %t && %run %t 2>&1 | FileCheck %s
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// RUN: %clang_dfsan %s -fsanitize-ignorelist=%S/Inputs/flags_abilist.txt -mllvm -dfsan-debug-nonzero-labels -o %t && DFSAN_OPTIONS=warn_unimplemented=0 %run %t 2>&1 | count 0
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// RUN: %clang_dfsan %s -fsanitize-ignorelist=%S/Inputs/flags_abilist.txt -mllvm -dfsan-debug-nonzero-labels -o %t && DFSAN_OPTIONS=warn_nonzero_labels=1 %run %t 2>&1 | FileCheck --check-prefix=CHECK-NONZERO %s
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//
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// REQUIRES: x86_64-target-arch
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// Tests that flags work correctly.
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#include <sanitizer/dfsan_interface.h>
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int f(int i) {
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return i;
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}
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int main(void) {
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int i = 1;
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dfsan_label i_label = 2;
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dfsan_set_label(i_label, &i, sizeof(i));
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// CHECK: WARNING: DataFlowSanitizer: call to uninstrumented function f
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// CHECK-NOT: WARNING: DataFlowSanitizer: saw nonzero label
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// CHECK-NONZERO: WARNING: DataFlowSanitizer: saw nonzero label
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f(i);
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return 0;
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}
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