1 // RUN: %clangxx_asan -mllvm -asan-coverage=1 -DSHARED %s -shared -o %T/libcoverage_test.so -fPIC
2 // RUN: %clangxx_asan -mllvm -asan-coverage=1 %s -o %t -Wl,-R,\$ORIGIN -L%T -lcoverage_test
3 // RUN: export ASAN_OPTIONS=coverage=1:verbosity=1
4 // RUN: mkdir -p %T/coverage && cd %T/coverage
5 // RUN: %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-main
6 // RUN: %run %t foo 2>&1 | FileCheck %s --check-prefix=CHECK-foo
7 // RUN: %run %t bar 2>&1 | FileCheck %s --check-prefix=CHECK-bar
8 // RUN: %run %t foo bar 2>&1 | FileCheck %s --check-prefix=CHECK-foo-bar
9 // RUN: not %run %t foo bar 4 2>&1 | FileCheck %s --check-prefix=CHECK-report
10 // RUN: not %run %t foo bar 4 5 2>&1 | FileCheck %s --check-prefix=CHECK-segv
11 // RUN: cd .. && rm coverage -r
12 //
13 // https://code.google.com/p/address-sanitizer/issues/detail?id=263
14 // XFAIL: android
15
16 #include <stdio.h>
17 #include <string.h>
18 #include <unistd.h>
19
20 #ifdef SHARED
bar()21 void bar() { printf("bar\n"); }
22 #else
23 __attribute__((noinline))
foo()24 void foo() { printf("foo\n"); }
25 extern void bar();
26
27 int G[4];
28
main(int argc,char ** argv)29 int main(int argc, char **argv) {
30 fprintf(stderr, "PID: %d\n", getpid());
31 for (int i = 1; i < argc; i++) {
32 if (!strcmp(argv[i], "foo"))
33 foo();
34 if (!strcmp(argv[i], "bar"))
35 bar();
36 }
37 if (argc == 5) {
38 static volatile char *zero = 0;
39 *zero = 0; // SEGV if argc == 5.
40 }
41 return G[argc]; // Buffer overflow if argc >= 4.
42 }
43 #endif
44
45 // CHECK-main: PID: [[PID:[0-9]+]]
46 // CHECK-main: [[PID]].sancov: 1 PCs written
47 // CHECK-main-NOT: .so.[[PID]]
48 //
49 // CHECK-foo: PID: [[PID:[0-9]+]]
50 // CHECK-foo: [[PID]].sancov: 2 PCs written
51 // CHECK-foo-NOT: .so.[[PID]]
52 //
53 // CHECK-bar: PID: [[PID:[0-9]+]]
54 // CHECK-bar: [[PID]].sancov: 1 PCs written
55 // CHECK-bar: .so.[[PID]].sancov: 1 PCs written
56 //
57 // CHECK-foo-bar: PID: [[PID:[0-9]+]]
58 // CHECK-foo-bar: [[PID]].sancov: 2 PCs written
59 // CHECK-foo-bar: so.[[PID]].sancov: 1 PCs written
60 //
61 // CHECK-report: AddressSanitizer: global-buffer-overflow
62 // CHECK-report: PCs written
63 //
64 // CHECK-segv: AddressSanitizer: SEGV
65 // CHECK-segv: PCs written
66