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
30 lines
959 B
C
30 lines
959 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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__attribute__((noinline)) uint64_t foo(uint64_t x, uint64_t y) { return x + y; }
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int main(int argc, char *argv[]) {
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uint64_t a = 10;
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uint64_t b = 20;
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dfsan_set_label(8, &a, sizeof(a));
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uint64_t c = foo(a, b);
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for (int i = 0; i < argc; ++i)
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c += foo(c, b);
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dfsan_print_origin_trace(&c, NULL);
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}
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// CHECK: Taint value 0x8 {{.*}} origin tracking ()
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// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
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// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-6]]
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// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
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// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-11]]
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// CHECK: Origin value: {{.*}}, Taint value was created at
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// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-15]]
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