[Bug gdb/13858] `set non-stop 1' triggers some fails in gdb.base/break-interp.exp

["qiyao at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=13858

--- Comment #2 from Yao Qi <qiyao at gcc dot gnu.org> 2012-03-16 10:54:54 UTC ---
(In reply to comment #1)
> > If I don't turn on displaced stepping in default, I get no fail in
> > gdb.base/break-interp.exp.  When I turn on displaced stepping in default (by
> > add a line in $build_gdb/gdb/testsuite/site.exp), I get following new fails in
> > native gdb on x86 linux.
> 
> So "set non-stop 1" isn't really necessary to trigger this, just "set
> displaced-stepping on", right?  Or are you really running the tests in
> non-stop+async mode?

I am running tests in non-stop mode.

When I put this line

  set GDBFLAGS "-ex \"set non-stop 1\""

in testsuite/site.exp, and `make check RUNTESTFLAGS="break-interp.exp"', I get 


FAIL: gdb.base/break-interp.exp: LDprelinkNOdebugNO: BINprelinkNOdebugNOpieNO:
symbol-less: reach-_dl_debug_state: reach
FAIL: gdb.base/break-interp.exp: LDprelinkNOdebugNO: BINprelinkNOdebugNOpieNO:
symbol-less: entry point reached
FAIL: gdb.base/break-interp.exp: LDprelinkNOdebugNO: BINprelinkNOdebugNOpieYES:
symbol-less: reach-_dl_debug_state: reach
FAIL: gdb.base/break-interp.exp: LDprelinkNOdebugNO: BINprelinkNOdebugNOpieYES:
symbol-less: entry point reached
FAIL: gdb.base/break-interp.exp: LDprelinkNOdebugIN: BINprelinkNOdebugNOpieNO:
symbol-less: reach-_dl_debug_state: reach
FAIL: gdb.base/break-interp.exp: LDprelinkNOdebugIN: BINprelinkNOdebugNOpieNO:
symbol-less: entry point reached
FAIL: gdb.base/break-interp.exp: LDprelinkNOdebugIN: BINprelinkNOdebugNOpieYES:
symbol-less: reach-_dl_debug_state: reach
FAIL: gdb.base/break-interp.exp: LDprelinkNOdebugIN: BINprelinkNOdebugNOpieYES:
symbol-less: entry point reached


When I put this line

  set GDBFLAGS "-ex \"set target-async on\""

in testsuite/site.exp, I get no fail,

        === gdb Summary ===

# of expected passes        667
# of expected failures        20

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