cca8d9e5be
After discussing the -mtp= option with Arm's LLVM developers we'd like to extend the functionality of the option somewhat. There are actually 3 system registers that can be accessed for the thread pointer in aarch32: tpidrurw, tpidruro, tpidrprw. They are all read through the CP15 co-processor mechanism. The current -mtp=cp15 option reads the tpidruro register. This patch extends -mtp to allow for the above three explicit tpidr names and keeps -mtp=cp15 as an alias of -mtp=tpidruro for backwards compatibility. Bootstrapped and tested on arm-none-linux-gnueabihf. gcc/ChangeLog: * config/arm/arm-opts.h (enum arm_tp_type): Remove TP_CP15. Add TP_TPIDRURW, TP_TPIDRURO, TP_TPIDRPRW values. * config/arm/arm-protos.h (arm_output_load_tpidr): Declare prototype. * config/arm/arm.cc (arm_option_reconfigure_globals): Replace TP_CP15 with TP_TPIDRURO. (arm_output_load_tpidr): Define. * config/arm/arm.h (TARGET_HARD_TP): Define in terms of TARGET_SOFT_TP. * config/arm/arm.md (load_tp_hard): Call arm_output_load_tpidr to output assembly. (reload_tp_hard): Likewise. * config/arm/arm.opt (tpidrurw, tpidruro, tpidrprw): New values for arm_tp_type. * doc/invoke.texi (Arm Options, mtp): Document new values. gcc/testsuite/ChangeLog: * gcc.target/arm/mtp.c: New test. * gcc.target/arm/mtp_1.c: New test. * gcc.target/arm/mtp_2.c: New test. * gcc.target/arm/mtp_3.c: New test. * gcc.target/arm/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.