Excerpts from H.J. Lu's message of September 8, 2020 4:09 am: > On Mon, Sep 7, 2020 at 2:35 PM Iain Buclaw <ibuc...@gdcproject.org> wrote: >> >> Hi, >> >> This patch removes whatever CET support was in the switchContext routine >> for x86 D runtime, and instead uses the ucontext fallback, which propely >> handles shadow stack handling. >> >> Rather than implementing support within D runtime itself, use libc >> getcontext/setcontext functions if CET is enabled instead. >> >> HJ, does this look reasonable before I commit it? The detection has >> been done at configure-time, rather than adding a predefined version >> condition for CET within the compiler. >> >> Done regression testing on x86_64-linux-gnu/-m32/-mx32. >> >> Regards >> Iain. >> >> --- >> libphobos/ChangeLog: >> >> PR d/95680 >> * Makefile.in: Regenerate. >> * configure: Regenerate. >> * configure.ac (DCFG_ENABLE_CET): Substitute. >> * libdruntime/Makefile.in: Regenerate. >> * libdruntime/config/x86/switchcontext.S: Remove CET support code. >> * libdruntime/core/thread.d: Import gcc.config. Don't set version >> AsmExternal when GNU_Enable_CET is true. >> * libdruntime/gcc/config.d.in (GNU_Enable_CET): Define. >> * src/Makefile.in: Regenerate. >> * testsuite/Makefile.in: Regenerate. > > Looks good. I can try it on Tiger Lake after it has been checked in. >
OK, I have committed it as r11-3047. Iain.
