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ENDBR32 and RDSSPD are multi-byte NOPs on x86-64 processors and newer x86 processors, starting Pentium Pro. They are UD on older 32-bit processors. Detect this at configure time and adjust the default value for enable_cet. GCC will enable CET in 32-bit run-time libraries in any case if --enable-cet is used to configure GCC. PR target/84148 * config/cet.m4: Check if target support multi-byte NOPS (SSE). * libatomic/configure: Regenerate. * libbacktrace/configure: Likewise. * libgcc/configure: Likewise. * libgfortran/configure: Likewise. * libgomp/configure: Likewise. * libitm/configure: Likewise. * libmpx/configure: Likewise. * libobjc/configure: Likewise. * libquadmath/configure: Likewise. * libsanitizer/configure: Likewise. * libssp/configure: Likewise. * libstdc++-v3/configure: Likewise. * libvtv/configure: Likewise. From-SVN: r257809 |
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| .. | ||
| asan | ||
| builtins | ||
| include | ||
| interception | ||
| libbacktrace | ||
| lsan | ||
| sanitizer_common | ||
| tsan | ||
| ubsan | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| ChangeLog | ||
| config.h.in | ||
| configure | ||
| configure.ac | ||
| configure.tgt | ||
| HOWTO_MERGE | ||
| libsanitizer.spec.in | ||
| libtool-version | ||
| LICENSE.TXT | ||
| LOCAL_PATCHES | ||
| Makefile.am | ||
| Makefile.in | ||
| MERGE | ||
| merge.sh | ||
| README.gcc | ||
AddressSanitizer (http://code.google.com/p/address-sanitizer) and ThreadSanitizer (http://code.google.com/p/thread-sanitizer/) are projects initially developed by Google Inc. Both tools consist of a compiler module and a run-time library. The sources of the run-time library for these projects are hosted at http://llvm.org/svn/llvm-project/compiler-rt in the following directories: include/sanitizer lib/sanitizer_common lib/interception lib/asan lib/tsan lib/lsan lib/ubsan Trivial and urgent fixes (portability, build fixes, etc.) may go directly to the GCC tree. All non-trivial changes, functionality improvements, etc. should go through the upstream tree first and then be merged back to the GCC tree. The merges from upstream should be done with the aid of the merge.sh script; it will also update the file MERGE to contain the upstream revision we merged with.