diff options
Diffstat (limited to 'test/asan/TestCases/Posix/coverage-module-unloaded.cc')
-rw-r--r-- | test/asan/TestCases/Posix/coverage-module-unloaded.cc | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/test/asan/TestCases/Posix/coverage-module-unloaded.cc b/test/asan/TestCases/Posix/coverage-module-unloaded.cc new file mode 100644 index 000000000000..fe08bdd792b1 --- /dev/null +++ b/test/asan/TestCases/Posix/coverage-module-unloaded.cc @@ -0,0 +1,55 @@ +// Check that unloading a module doesn't break coverage dumping for remaining +// modules. +// RUN: %clangxx_asan -fsanitize-coverage=func -DSHARED %s -shared -o %dynamiclib1 -fPIC +// RUN: %clangxx_asan -fsanitize-coverage=func -DSHARED %s -shared -o %dynamiclib2 -fPIC +// RUN: %clangxx_asan -fsanitize-coverage=func %s %libdl -o %t +// RUN: export ASAN_OPTIONS=$ASAN_OPTIONS:coverage=1:verbosity=1 +// RUN: mkdir -p %T/coverage-module-unloaded && cd %T/coverage-module-unloaded +// RUN: %run %t %dynamiclib1 %dynamiclib2 2>&1 | FileCheck %s +// RUN: %run %t %dynamiclib1 %dynamiclib2 foo 2>&1 | FileCheck %s +// RUN: rm -r %T/coverage-module-unloaded +// +// https://code.google.com/p/address-sanitizer/issues/detail?id=263 +// XFAIL: android + +#include <assert.h> +#include <dlfcn.h> +#include <stdio.h> +#include <unistd.h> + +#ifdef SHARED +extern "C" { +void bar() { printf("bar\n"); } +} +#else + +int main(int argc, char **argv) { + fprintf(stderr, "PID: %d\n", getpid()); + assert(argc > 2); + void *handle1 = dlopen(argv[1], RTLD_LAZY); // %dynamiclib1 + assert(handle1); + void (*bar1)() = (void (*)())dlsym(handle1, "bar"); + assert(bar1); + bar1(); + void *handle2 = dlopen(argv[2], RTLD_LAZY); // %dynamiclib2 + assert(handle2); + void (*bar2)() = (void (*)())dlsym(handle2, "bar"); + assert(bar2); + bar2(); + + // It matters whether the unloaded module has a higher or lower address range + // than the remaining one. Make sure to test both cases. + if (argc < 2) + dlclose(bar1 < bar2 ? handle1 : handle2); + else + dlclose(bar1 < bar2 ? handle2 : handle1); + return 0; +} +#endif + +// CHECK: PID: [[PID:[0-9]+]] +// CHECK: [[PID]].sancov: 1 PCs written +// CHECK: coverage-module-unloaded{{.*}}1.[[PID]] +// CHECK: coverage-module-unloaded{{.*}}2.[[PID]] +// Even though we've unloaded one of the libs we still dump the coverage file +// for that lib (although the data will be inaccurate, if at all useful) |