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-rw-r--r--test/asan/TestCases/Posix/coverage-caller-callee.cc75
1 files changed, 75 insertions, 0 deletions
diff --git a/test/asan/TestCases/Posix/coverage-caller-callee.cc b/test/asan/TestCases/Posix/coverage-caller-callee.cc
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index 000000000000..fb8b9bf92af2
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+++ b/test/asan/TestCases/Posix/coverage-caller-callee.cc
@@ -0,0 +1,75 @@
+// Test caller-callee coverage with large number of threads
+// and various numbers of callers and callees.
+
+// RUN: %clangxx_asan -fsanitize-coverage=edge,indirect-calls %s -o %t
+// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 10 1 2>&1 | FileCheck %s --check-prefix=CHECK-10-1
+// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 9 2 2>&1 | FileCheck %s --check-prefix=CHECK-9-2
+// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 7 3 2>&1 | FileCheck %s --check-prefix=CHECK-7-3
+// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 17 1 2>&1 | FileCheck %s --check-prefix=CHECK-17-1
+// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 15 2 2>&1 | FileCheck %s --check-prefix=CHECK-15-2
+// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 18 3 2>&1 | FileCheck %s --check-prefix=CHECK-18-3
+// RUN: rm -f caller-callee*.sancov
+//
+// REQUIRES: asan-64-bits
+// UNSUPPORTED: android
+//
+// CHECK-10-1: CovDump: 10 caller-callee pairs written
+// CHECK-9-2: CovDump: 18 caller-callee pairs written
+// CHECK-7-3: CovDump: 21 caller-callee pairs written
+// CHECK-17-1: CovDump: 14 caller-callee pairs written
+// CHECK-15-2: CovDump: 28 caller-callee pairs written
+// CHECK-18-3: CovDump: 42 caller-callee pairs written
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+int P = 0;
+struct Foo {virtual void f() {if (P) printf("Foo::f()\n");}};
+struct Foo1 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo2 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo3 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo4 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo5 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo6 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo7 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo8 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo9 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo10 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo11 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo12 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo13 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo14 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo15 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo16 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo17 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo18 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo19 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+
+Foo *foo[20] = {
+ new Foo, new Foo1, new Foo2, new Foo3, new Foo4, new Foo5, new Foo6,
+ new Foo7, new Foo8, new Foo9, new Foo10, new Foo11, new Foo12, new Foo13,
+ new Foo14, new Foo15, new Foo16, new Foo17, new Foo18, new Foo19,
+};
+
+int n_functions = 10;
+int n_callers = 2;
+
+void *Thread(void *arg) {
+ if (n_callers >= 1) for (int i = 0; i < 2000; i++) foo[i % n_functions]->f();
+ if (n_callers >= 2) for (int i = 0; i < 2000; i++) foo[i % n_functions]->f();
+ if (n_callers >= 3) for (int i = 0; i < 2000; i++) foo[i % n_functions]->f();
+ return arg;
+}
+
+int main(int argc, char **argv) {
+ if (argc >= 2)
+ n_functions = atoi(argv[1]);
+ if (argc >= 3)
+ n_callers = atoi(argv[2]);
+ const int kNumThreads = 16;
+ pthread_t t[kNumThreads];
+ for (int i = 0; i < kNumThreads; i++)
+ pthread_create(&t[i], 0, Thread, 0);
+ for (int i = 0; i < kNumThreads; i++)
+ pthread_join(t[i], 0);
+}