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revert r248644 because of the regression for usdt probes

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USDT probes are advertised to kernel by initialization code with
atrribute((constructor))).  It seems that on Solaris the .init-ish code
of the main object is executed before RD_PREINIT point is hit.  On
FreeBSD that is not the case.  And because on FreeBSD there is no other
well-defined point between RD_PREINIT and main() we have to parse a
DTrace script when main is hit, for time being.

A footnote: currently we actually post RD_POSTINIT event, but that's a
bug because the event is triggered by hitting r_debug_state which
happens before any init code is executed.

Reported by:	markj
This commit is contained in:
Andriy Gapon 2013-04-25 07:04:56 +00:00
parent 7f168e5ddb
commit 5d33cbbf9d
1 changed files with 1 additions and 1 deletions
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2
cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c
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@ -1130,7 +1130,7 @@ alloc:
#if defined(sun)
dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
#else
dtp->dt_prcmode = DT_PROC_STOP_POSTINIT;
dtp->dt_prcmode = DT_PROC_STOP_MAIN;
#endif
dtp->dt_linkmode = DT_LINK_KERNEL;
dtp->dt_linktype = DT_LTYP_ELF;