gcc/libsanitizer/sanitizer_common/sanitizer_dl.cpp
Jakub Jelinek 28219f7f99 libsanitizer: merge from upstream (c425db2eb558c263)
The following patch is result of libsanitizer/merge.sh
from c425db2eb558c263 (yesterday evening).

Bootstrapped/regtested on x86_64-linux and i686-linux (together with
the follow-up 3 patches I'm about to post).

BTW, seems upstream has added riscv64 support for I think lsan/tsan,
so if anyone is willing to try it there, it would be a matter of
copying e.g. the s390*-*-linux* libsanitizer/configure.tgt entry
to riscv64-*-linux* with the obvious s/s390x/riscv64/ change in it.
2023-11-15 12:45:58 +01:00

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//===-- sanitizer_dl.cpp --------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file has helper functions that depend on libc's dynamic loading
// introspection.
//
//===----------------------------------------------------------------------===//
#include "sanitizer_dl.h"
#include "sanitizer_common/sanitizer_platform.h"
#if SANITIZER_GLIBC
# include <dlfcn.h>
#endif
namespace __sanitizer {
extern const char *SanitizerToolName;
const char *DladdrSelfFName(void) {
#if SANITIZER_GLIBC
Dl_info info;
int ret = dladdr((void *)&SanitizerToolName, &info);
if (ret) {
return info.dli_fname;
}
#endif
return nullptr;
}
} // namespace __sanitizer