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
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
// RUN: %clang_dfsan -gmlt -DOFFSET=0 -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 --check-prefix=CHECK0 < %t.out
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//
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// RUN: %clang_dfsan -gmlt -DOFFSET=10 -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 --check-prefix=CHECK10 < %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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#include <string.h>
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int xx[10000];
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volatile int idx = 30;
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__attribute__((noinline))
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void fn_g(int a, int b) {
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memset(&xx[idx], a, sizeof(a));
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memset(&xx[idx + 10], b, sizeof(b));
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}
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__attribute__((noinline))
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void fn_f(int a, int b) {
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fn_g(a, b);
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}
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int main(int argc, char *argv[]) {
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int volatile z1;
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int 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));
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fn_f(z1, z2);
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dfsan_print_origin_trace(&xx[idx + OFFSET], NULL);
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return 0;
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}
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// CHECK0: Taint value 0x8 {{.*}} origin tracking ()
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// CHECK0: Origin value: {{.*}}, Taint value was created at
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// CHECK0: #0 {{.*}} in main {{.*}}origin_memset.c:[[@LINE-10]]
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// CHECK10: Taint value 0x10 {{.*}} origin tracking ()
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// CHECK10: Origin value: {{.*}}, Taint value was created at
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// CHECK10: #0 {{.*}} in main {{.*}}origin_memset.c:[[@LINE-14]]
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