| 1 | // RUN: %clangxx_asan -fsanitize-coverage=func,trace-pc-guard %s -o %t |
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| 2 | // RUN: rm -rf %t-dir |
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| 3 | // RUN: mkdir -p %t-dir && cd %t-dir |
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| 4 | // RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 2>&1 | FileCheck %s |
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| 5 | // |
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| 6 | // UNSUPPORTED: android |
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| 7 | // UNSUPPORTED: iossim |
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| 8 | // |
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| 9 | // Ideally a forked-subprocess should only report it's own coverage, |
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| 10 | // not parent's one. But trace-pc-guard currently does nothing special for fork, |
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| 11 | // and thus this test is relaxed. |
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| 12 | |
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| 13 | #include <stdio.h> |
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| 14 | #include <string.h> |
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| 15 | #include <sys/wait.h> |
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| 16 | #include <unistd.h> |
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| 17 | |
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| 18 | __attribute__((noinline)) |
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| 19 | void foo() { printf(format: "foo\n" ); } |
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| 20 | |
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| 21 | __attribute__((noinline)) |
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| 22 | void bar() { printf(format: "bar\n" ); } |
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| 23 | |
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| 24 | __attribute__((noinline)) |
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| 25 | void baz() { printf(format: "baz\n" ); } |
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| 26 | |
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| 27 | int main(int argc, char **argv) { |
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| 28 | pid_t child_pid = fork(); |
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| 29 | if (child_pid == 0) { |
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| 30 | fprintf(stderr, format: "Child PID: %d\n" , getpid()); |
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| 31 | baz(); |
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| 32 | } else { |
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| 33 | fprintf(stderr, format: "Parent PID: %d\n" , getpid()); |
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| 34 | foo(); |
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| 35 | bar(); |
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| 36 | |
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| 37 | // Wait for the child process(s) to finish |
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| 38 | while (wait(NULL) > 0) |
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| 39 | ; |
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| 40 | } |
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| 41 | return 0; |
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| 42 | } |
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| 43 | |
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| 44 | // CHECK-DAG: Child PID: [[ChildPID:[0-9]+]] |
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| 45 | // CHECK-DAG: [[ChildPID]].sancov: {{.*}} PCs written |
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| 46 | // CHECK-DAG: Parent PID: [[ParentPID:[0-9]+]] |
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| 47 | // CHECK-DAG: [[ParentPID]].sancov: 3 PCs written |
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| 48 | |
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