573624ec90
A user has requested that we support the -mtp= option in aarch64 GCC for changing the TPIDR register to read for TLS accesses. I'm not a big fan of the option name, but we already support it in the arm port and Clang supports it for AArch64 already, where it accepts the 'el0', 'el1', 'el2', 'el3' values. This patch implements the same functionality in GCC. Bootstrapped and tested on aarch64-none-linux-gnu. Confirmed with godbolt that the sequences and options are the same as what Clang accepts/generates. gcc/ChangeLog: PR target/108779 * config/aarch64/aarch64-opts.h (enum aarch64_tp_reg): Define. * config/aarch64/aarch64-protos.h (aarch64_output_load_tp): Define prototype. * config/aarch64/aarch64.cc (aarch64_tpidr_register): Declare. (aarch64_override_options_internal): Handle the above. (aarch64_output_load_tp): New function. * config/aarch64/aarch64.md (aarch64_load_tp_hard): Call aarch64_output_load_tp. * config/aarch64/aarch64.opt (aarch64_tp_reg): Define enum. (mtp=): New option. * doc/invoke.texi (AArch64 Options): Document -mtp=. gcc/testsuite/ChangeLog: PR target/108779 * gcc.target/aarch64/mtp.c: New test. * gcc.target/aarch64/mtp_1.c: New test. * gcc.target/aarch64/mtp_2.c: New test. * gcc.target/aarch64/mtp_3.c: New test. * gcc.target/aarch64/mtp_4.c: New test. |
||
|---|---|---|
| c++tools | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcody | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgm2 | ||
| libgo | ||
| libgomp | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ar-lib | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| lt~obsolete.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| multilib.am | ||
| README | ||
| symlink-tree | ||
| test-driver | ||
| ylwrap | ||
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.