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// RUN: %clangxx -g -O0 %s -o %t
// Check that trying to dlopen() the ASan dylib fails.
// We explicitly set `abort_on_error=0` because
// - By default the lit config sets this but we don't want this
// test to implicitly depend on this.
// - It avoids requiring `--crash` to be passed to `not`.
// RUN: APPLE_ASAN_INIT_FOR_DLOPEN=0 %env_asan_opts=abort_on_error=0 not \
// RUN: %run %t %shared_libasan 2>&1 | \
// RUN: FileCheck -check-prefix=CHECK-DL-OPEN-FAIL %s
// RUN: env -u APPLE_ASAN_INIT_FOR_DLOPEN %env_asan_opts=abort_on_error=0 not \
// RUN: %run %t %shared_libasan 2>&1 | \
// RUN: FileCheck -check-prefix=CHECK-DL-OPEN-FAIL %s
// Check that we can successfully dlopen the ASan dylib when we set the right
// environment variable.
// RUN: env APPLE_ASAN_INIT_FOR_DLOPEN=1 %run %t %shared_libasan 2>&1 | \
// RUN: FileCheck -check-prefix=CHECK-DL-OPEN-SUCCESS %s
#include <dlfcn.h>
#include <stdio.h>
// CHECK-DL-OPEN-FAIL: ERROR: Interceptors are not working
// CHECK-SAME-DL-OPEN-FAIL: Please launch the executable with: DYLD_INSERT_LIBRARIES={{.+}}/libclang_rt.asan_{{.+}}_dynamic.dylib
int main(int argc, char **argv) {
if (argc != 2) {
fprintf(stderr, "Usage: %s <dylib_path>\n", argv[0]);
return 1;
}
const char *dylib_path = argv[1];
void *handle = dlopen(dylib_path, RTLD_LAZY);
if (!handle) {
fprintf(stderr, "Failed to dlopen: %s\n", dlerror());
return 1;
}
// Make sure we can find a function we expect to be in the dylib.
void *fn = dlsym(handle, "__sanitizer_mz_size");
if (!fn) {
fprintf(stderr, "Failed to get symbol: %s\n", dlerror());
return 1;
}
// TODO(dliew): Actually call a function from the dylib that is safe to call.
// CHECK-DL-OPEN-SUCCESS: DONE
printf("DONE\n");
return 0;
}
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