svn commit: r265631 - head/cddl/contrib/opensolaris/lib/libdtrace/common

Mark Johnston markj at
Thu May 8 03:43:18 UTC 2014

Author: markj
Date: Thu May  8 03:43:18 2014
New Revision: 265631

  Re-apply r248644. This fixes an annoying problem which caused dtrace -c to
  fail to attach to stripped binaries. With the _r_debug_postinit symbol,
  dtrace(1) can now set a breakpoint in the victim process after it has
  registered its DOF table(s) with the kernel. r_debug_state cannot be used
  for this purpose since it is called before DOF is made available, in which
  case dtrace(1) cannot create USDT probes before the program begins
  MFC after:	2 weeks


Modified: head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c
--- head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c	Thu May  8 03:33:54 2014	(r265630)
+++ head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c	Thu May  8 03:43:18 2014	(r265631)
@@ -1138,7 +1138,7 @@ alloc:
 #if defined(sun)
 	dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
-	dtp->dt_prcmode = DT_PROC_STOP_MAIN;
+	dtp->dt_prcmode = DT_PROC_STOP_POSTINIT;
 	dtp->dt_linkmode = DT_LINK_KERNEL;
 	dtp->dt_linktype = DT_LTYP_ELF;

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