Messages in this thread | | | From | Jason Vas Dias <> | Date | Mon, 19 Mar 2018 17:48:23 +0000 | Subject | Re: [PATCH v4.16-rc6 (1)] x86/vdso: VDSO should handle clock_gettime(CLOCK_MONOTONIC_RAW) without syscall |
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Note there is a bug raised by H.J. Liu : Bug 199129: Don't build vDSO with $(RETPOLINE_CFLAGS) -DRETPOLINE (https://bugzilla.kernel.org/show_bug.cgi?id=199129)
If you agree it is a bug, then use both patches from post : '[PATCH v4.16-rc5 (2)] x86/vdso: VDSO should handle \ clock_gettime(CLOCK_MONOTONIC_RAW) without syscall ' else, use the single patch from $subject, which makes the calls to the statics in vclock_gettime.c' use indirect_branch("keep") / function_return("keep") , to avoid generation of thunk relocations which would not occur unless compiled with -mindirect-branch=thunk-extern -mindirect-branch-register .
Thanks & Regards, Jason
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