Date: Sat, 28 Mar 2015 09:03:55 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r280781 - head/sys/amd64/amd64 Message-ID: <201503280903.t2S93tgH013452@svn.freebsd.org>
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Author: kib Date: Sat Mar 28 09:03:54 2015 New Revision: 280781 URL: https://svnweb.freebsd.org/changeset/base/280781 Log: Make it possible for the signal handler to act on #ss. Load the canonical user data segment' selector into %ss when calling the handler. Sponsored by: The FreeBSD Foundation MFC after: 1 week Modified: head/sys/amd64/amd64/machdep.c Modified: head/sys/amd64/amd64/machdep.c ============================================================================== --- head/sys/amd64/amd64/machdep.c Sat Mar 28 09:02:19 2015 (r280780) +++ head/sys/amd64/amd64/machdep.c Sat Mar 28 09:03:54 2015 (r280781) @@ -443,6 +443,7 @@ sendsig(sig_t catcher, ksiginfo_t *ksi, regs->tf_rflags &= ~(PSL_T | PSL_D); regs->tf_cs = _ucodesel; regs->tf_ds = _udatasel; + regs->tf_ss = _udatasel; regs->tf_es = _udatasel; regs->tf_fs = _ufssel; regs->tf_gs = _ugssel;
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