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
26 lines
798 B
C
26 lines
798 B
C
// RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 %s -o %t && \
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// RUN: %run %t >%t.out 2>&1
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// RUN: FileCheck %s < %t.out
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//
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// REQUIRES: x86_64-target-arch
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#include <sanitizer/dfsan_interface.h>
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int main(int argc, char *argv[]) {
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char volatile z1;
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char volatile z2;
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dfsan_set_label(8, (void *)&z1, sizeof(z1));
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dfsan_set_label(16, (void *)&z2, sizeof(z2)); // overwritting the old origin.
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char c = z1;
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dfsan_print_origin_trace(&c, "bar");
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return 0;
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}
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// CHECK: Taint value 0x8 {{.*}} origin tracking (bar)
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// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
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// CHECK: #0 {{.*}} in main {{.*}}origin_overlapped.c:[[@LINE-7]]
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// CHECK: Origin value: {{.*}}, Taint value was created at
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// CHECK: #0 {{.*}} in main {{.*}}origin_overlapped.c:[[@LINE-12]]
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