| 1 | // Check that --gc-sections does not throw away (or localize) parts of sanitizer |
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| 2 | // interface. |
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| 3 | // RUN: %clang_asan %s -Wl,--gc-sections -ldl -o %t |
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| 4 | // RUN: %clang_asan %s -DBUILD_SO -fPIC -o %t-so.so -shared |
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| 5 | // RUN: %run %t 2>&1 |
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| 6 | |
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| 7 | // REQUIRES: asan-64-bits |
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| 8 | |
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| 9 | #ifndef BUILD_SO |
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| 10 | #include <assert.h> |
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| 11 | #include <dlfcn.h> |
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| 12 | #include <stdio.h> |
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| 13 | #include <stdlib.h> |
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| 14 | |
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| 15 | int main(int argc, char *argv[]) { |
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| 16 | char path[4096]; |
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| 17 | snprintf(s: path, maxlen: sizeof(path), format: "%s-so.so" , argv[0]); |
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| 18 | |
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| 19 | void *handle = dlopen(file: path, RTLD_LAZY); |
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| 20 | if (!handle) fprintf(stderr, format: "%s\n" , dlerror()); |
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| 21 | assert(handle != 0); |
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| 22 | |
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| 23 | typedef void (*F)(); |
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| 24 | F f = (F)dlsym(handle: handle, name: "call_rtl_from_dso" ); |
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| 25 | printf(format: "%s\n" , dlerror()); |
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| 26 | assert(dlerror() == 0); |
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| 27 | f(); |
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| 28 | |
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| 29 | dlclose(handle: handle); |
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| 30 | return 0; |
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| 31 | } |
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| 32 | |
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| 33 | #else // BUILD_SO |
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| 34 | |
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| 35 | #include <sanitizer/asan_interface.h> |
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| 36 | extern "C" void call_rtl_from_dso() { |
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| 37 | volatile int32_t x; |
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| 38 | volatile int32_t y = __sanitizer_unaligned_load32((void *)&x); |
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| 39 | } |
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| 40 | |
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| 41 | #endif // BUILD_SO |
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| 42 | |
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