Date: Fri, 18 Jul 2014 16:10:38 GMT From: op@FreeBSD.org To: svn-soc-all@FreeBSD.org Subject: socsvn commit: r271090 - soc2014/op/freebsd-base/sys/kern Message-ID: <201407181610.s6IGAcE8056266@socsvn.freebsd.org>
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Author: op Date: Fri Jul 18 16:10:37 2014 New Revision: 271090 URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=271090 Log: KSP: disallow inlining of lf_selfpatch_selftest, and change test bytes Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com> git: https://github.com/opntr/opBSD/tree/op/gsoc2014/kpatch Modified: soc2014/op/freebsd-base/sys/kern/kern_selfpatch.c Modified: soc2014/op/freebsd-base/sys/kern/kern_selfpatch.c ============================================================================== --- soc2014/op/freebsd-base/sys/kern/kern_selfpatch.c Fri Jul 18 16:10:15 2014 (r271089) +++ soc2014/op/freebsd-base/sys/kern/kern_selfpatch.c Fri Jul 18 16:10:37 2014 (r271090) @@ -60,7 +60,7 @@ SYSCTL_INT(_debug, OID_AUTO, selfpatch_debug, CTLFLAG_RWTUN, &selfpatch_debug, 0, "Set various levels of selfpatch debug"); -void lf_selfpatch_selftest(void); +__noinline void lf_selfpatch_selftest(void); bool lf_selfpatch_patch_needed(struct lf_selfpatch *p) @@ -211,12 +211,12 @@ } -void +__noinline void lf_selfpatch_selftest(void) { __asm __volatile( "1:" - " .byte 0xde,0xad,0xde,0xad ; " + " ud2; ud2; ; " "2: " " .pushsection set_selfpatch_patch_set, \"ax\" ; " "3: "
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