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charset="Windows-1252" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: gcc-help@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-help mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Sep 2021 15:37:30 -0000 On clang, when using -fsanitize-coverage=3Dtrace-pc-guard default implement= ations for the callback functions are provided that produce sancov data: https://clang.llvm.org/docs/SanitizerCoverage.html#default-implementation SanitizerCoverage =97 Clang 13 documentation extern "C" void __sanitizer_cov_pcs_init (const uintptr_t * pcs_beg, const = uintptr_t * pcs_end) {// [pcs_beg,pcs_end) is the array of ptr-sized intege= rs representing // pairs [PC,PCFlags] for every instrumented block in the c= urrent DSO. // Capture this array in order to read the PCs and their Flags.= // The number of PCs and PCFlags for a given DSO is the same as the number= // of 8-bit counters ... clang.llvm.org Are there such default implementations for gcc 9.3 and -fsanitize-coverage= =3Dtrace-pc? If no, would it be easy to introduce them by another way? Regards