| 1 | // RUN: %clangxx -g -O0 %s -o %t |
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| 2 | |
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| 3 | // Check that trying to dlopen() the ASan dylib fails. |
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| 4 | // We explicitly set `abort_on_error=0` because |
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| 5 | // - By default the lit config sets this but we don't want this |
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| 6 | // test to implicitly depend on this. |
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| 7 | // - It avoids requiring `--crash` to be passed to `not`. |
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| 8 | // RUN: APPLE_ASAN_INIT_FOR_DLOPEN=0 %env_asan_opts=abort_on_error=0 not \ |
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| 9 | // RUN: %run %t %shared_libasan 2>&1 | \ |
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| 10 | // RUN: FileCheck -check-prefix=CHECK-DL-OPEN-FAIL %s |
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| 11 | // RUN: env -u APPLE_ASAN_INIT_FOR_DLOPEN %env_asan_opts=abort_on_error=0 not \ |
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| 12 | // RUN: %run %t %shared_libasan 2>&1 | \ |
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| 13 | // RUN: FileCheck -check-prefix=CHECK-DL-OPEN-FAIL %s |
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| 14 | |
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| 15 | // Check that we can successfully dlopen the ASan dylib when we set the right |
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| 16 | // environment variable. |
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| 17 | // RUN: env APPLE_ASAN_INIT_FOR_DLOPEN=1 %run %t %shared_libasan 2>&1 | \ |
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| 18 | // RUN: FileCheck -check-prefix=CHECK-DL-OPEN-SUCCESS %s |
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| 19 | |
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| 20 | #include <dlfcn.h> |
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| 21 | #include <stdio.h> |
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| 22 | |
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| 23 | // CHECK-DL-OPEN-FAIL: ERROR: Interceptors are not working |
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| 24 | // CHECK-SAME-DL-OPEN-FAIL: Please launch the executable with: DYLD_INSERT_LIBRARIES={{.+}}/libclang_rt.asan_{{.+}}_dynamic.dylib |
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| 25 | |
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| 26 | int main(int argc, char **argv) { |
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| 27 | if (argc != 2) { |
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| 28 | fprintf(stderr, format: "Usage: %s <dylib_path>\n" , argv[0]); |
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| 29 | return 1; |
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| 30 | } |
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| 31 | const char *dylib_path = argv[1]; |
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| 32 | void *handle = dlopen(file: dylib_path, RTLD_LAZY); |
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| 33 | if (!handle) { |
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| 34 | fprintf(stderr, format: "Failed to dlopen: %s\n" , dlerror()); |
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| 35 | return 1; |
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| 36 | } |
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| 37 | // Make sure we can find a function we expect to be in the dylib. |
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| 38 | void *fn = dlsym(handle: handle, name: "__sanitizer_mz_size" ); |
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| 39 | if (!fn) { |
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| 40 | fprintf(stderr, format: "Failed to get symbol: %s\n" , dlerror()); |
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| 41 | return 1; |
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| 42 | } |
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| 43 | // TODO(dliew): Actually call a function from the dylib that is safe to call. |
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| 44 | // CHECK-DL-OPEN-SUCCESS: DONE |
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| 45 | printf(format: "DONE\n" ); |
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| 46 | return 0; |
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| 47 | } |
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| 48 | |
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