Date: Sat, 27 Aug 2011 22:10:45 +0000 (UTC) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r225221 - head/sys/dev/syscons Message-ID: <201108272210.p7RMAjlZ022897@svn.freebsd.org>
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Author: rwatson Date: Sat Aug 27 22:10:45 2011 New Revision: 225221 URL: http://svn.freebsd.org/changeset/base/225221 Log: Add support for alternative break-to-debugger to syscons(4). While most keyboards allow console break sequences (such as ctrl-alt-esc) to be entered, alternative break can prove useful under virtualisation and remote console systems where entering control sequences can be difficult or unreliable. MFC after: 3 weeks Approved by: re (bz) Modified: head/sys/dev/syscons/syscons.c head/sys/dev/syscons/syscons.h Modified: head/sys/dev/syscons/syscons.c ============================================================================== --- head/sys/dev/syscons/syscons.c Sat Aug 27 22:08:01 2011 (r225220) +++ head/sys/dev/syscons/syscons.c Sat Aug 27 22:10:45 2011 (r225221) @@ -3562,6 +3562,10 @@ next_code: /* goto next_code */ } else { /* regular keys (maybe MKEY is set) */ +#if !defined(SC_DISABLE_KDBKEY) && defined(KDB) + if (enable_kdbkey) + kdb_alt_break(c, &sc->sc_altbrk); +#endif if (!(sc->flags & SC_SCRN_BLANKED)) return c; } Modified: head/sys/dev/syscons/syscons.h ============================================================================== --- head/sys/dev/syscons/syscons.h Sat Aug 27 22:08:01 2011 (r225220) +++ head/sys/dev/syscons/syscons.h Sat Aug 27 22:10:45 2011 (r225221) @@ -266,6 +266,9 @@ typedef struct sc_softc { u_char cursor_char; u_char mouse_char; +#ifdef KDB + int sc_altbrk; +#endif } sc_softc_t; /* virtual screen */
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