| 1 | // Checks that dfsan works with trace-cmp instrumentation, even if some hooks |
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| 2 | // are not defined (relies on week hooks implemented in dfsan). |
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| 3 | // |
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| 4 | // RUN: %clang_dfsan -fsanitize-coverage=trace-pc-guard,pc-table,func,trace-cmp %s -o %t |
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| 5 | // RUN: %run %t 2>&1 | FileCheck %s |
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| 6 | |
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| 7 | #include <stdio.h> |
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| 8 | #include <stdint.h> |
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| 9 | #include <stdlib.h> |
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| 10 | |
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| 11 | #include <sanitizer/dfsan_interface.h> |
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| 12 | |
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| 13 | uint32_t a4, b4; |
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| 14 | uint64_t a8, b8; |
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| 15 | |
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| 16 | // Define just two hooks, and leave others undefined. |
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| 17 | void __dfsw___sanitizer_cov_trace_const_cmp4(uint8_t a, uint8_t b, |
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| 18 | dfsan_label l1, dfsan_label l2) { |
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| 19 | printf(format: "const_cmp4 %d %d\n" , a, b); |
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| 20 | } |
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| 21 | void __dfsw___sanitizer_cov_trace_cmp8(uint8_t a, uint8_t b, dfsan_label l1, |
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| 22 | dfsan_label l2) { |
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| 23 | printf(format: "cmp8 %d %d\n" , a, b); |
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| 24 | } |
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| 25 | |
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| 26 | int main(int argc, char **argv) { |
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| 27 | printf(format: "MAIN\n" ); |
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| 28 | // CHECK: MAIN |
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| 29 | |
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| 30 | if (a4 != b4) abort(); |
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| 31 | if (a4 == 42) abort(); |
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| 32 | // CHECK: const_cmp4 42 0 |
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| 33 | if (a8 != b8) abort(); |
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| 34 | // CHECK: cmp8 0 0 |
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| 35 | if (a8 == 66) abort(); |
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| 36 | |
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| 37 | switch (10 / (a4 + 2)) { |
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| 38 | case 1: abort(); |
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| 39 | case 2: exit(status: 1); |
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| 40 | case 5: |
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| 41 | printf(format: "SWITCH OK\n" ); |
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| 42 | break; |
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| 43 | } |
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| 44 | // CHECK: SWITCH OK |
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| 45 | |
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| 46 | |
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| 47 | printf(format: "DONE\n" ); |
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| 48 | // CHECK: DONE |
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| 49 | return 0; |
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| 50 | } |
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| 51 | |
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