| 1 | //===-- sanitizer_dl.cpp --------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This file has helper functions that depend on libc's dynamic loading |
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| 10 | // introspection. |
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| 11 | // |
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| 12 | //===----------------------------------------------------------------------===// |
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| 13 | |
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| 14 | #include "sanitizer_dl.h" |
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| 15 | |
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| 16 | #include "sanitizer_common/sanitizer_platform.h" |
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| 17 | |
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| 18 | #if SANITIZER_GLIBC |
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| 19 | # include <dlfcn.h> |
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| 20 | #endif |
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| 21 | |
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| 22 | namespace __sanitizer { |
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| 23 | extern const char *SanitizerToolName; |
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| 24 | |
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| 25 | const char *DladdrSelfFName(void) { |
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| 26 | #if SANITIZER_GLIBC |
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| 27 | Dl_info info; |
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| 28 | int ret = dladdr(address: (void *)&SanitizerToolName, info: &info); |
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| 29 | if (ret) { |
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| 30 | return info.dli_fname; |
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| 31 | } |
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| 32 | #endif |
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| 33 | |
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| 34 | return nullptr; |
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| 35 | } |
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| 36 | |
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| 37 | } // namespace __sanitizer |
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| 38 | |
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