diff options
| -rw-r--r-- | compiler-rt/test/asan/TestCases/Posix/global-registration.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/compiler-rt/test/asan/TestCases/Posix/global-registration.c b/compiler-rt/test/asan/TestCases/Posix/global-registration.c new file mode 100644 index 00000000000..7c77eb5ef72 --- /dev/null +++ b/compiler-rt/test/asan/TestCases/Posix/global-registration.c @@ -0,0 +1,56 @@ +// Test that globals from different shared objects all get registered. + +// This source file is compiled into three different source object files. Each +// object file declares a global buffer. The first two are linked together, and +// the third is loaded at runtime. We make sure that out-of-bounds accesses +// are caught for all three buffers. + +// RUN: %clang_asan -c -o %t-one.o -DDYNAMICLIB=\"%t-dynamic.so\" -DMAIN_FILE %s +// RUN: %clang_asan -c -o %t-two.o -DSECONDARY_FILE %s +// RUN: %clang_asan -o %t %t-one.o %t-two.o +// RUN: %clang_asan -shared -o %t-dynamic.so -DSHARED_LIBRARY_FILE %s +// RUN: not %run %t 1 2>&1 | FileCheck --check-prefix ASAN-CHECK-1 %s +// RUN: not %run %t 2 2>&1 | FileCheck --check-prefix ASAN-CHECK-2 %s +// RUN: not %run %t 3 2>&1 | FileCheck --check-prefix ASAN-CHECK-3 %s + +#if MAIN_FILE + +#include <dlfcn.h> +#include <stdlib.h> + +extern char buffer2[1]; +char buffer1[1] = { }; + +int main(int argc, char *argv[]) { + int n = atoi(argv[1]); + if (n == 1) { + buffer1[argc] = 0; + // ASAN-CHECK-1: {{0x.* is located 1 bytes .* 'buffer1'}} + } else if (n == 2) { + buffer2[argc] = 0; + // ASAN-CHECK-2: {{0x.* is located 1 bytes .* 'buffer2'}} + } else if (n == 3) { + void *handle = dlopen(DYNAMICLIB, RTLD_NOW); + if (!handle) + return 1; + + char *buffer = (char *)dlsym(handle, "buffer3"); + if (!buffer) + return 1; + + buffer[argc] = 0; + // ASAN-CHECK-3: {{0x.* is located 1 bytes .* 'buffer3'}} + } + + return 0; +} + +#elif SECONDARY_FILE + +char buffer2[1] = { }; + +#elif SHARED_LIBRARY_FILE + +char buffer3[1] = { }; + +#endif |
