[RFA] testsuite: Avoid buffer overrun in gdb.base/default.exp

["Pierre Muller" <pierre dot muller at ics-cnrs dot unistra dot fr>]

  The attached patch fixes a full internal buffer problem
inside gdb.base/default.exp,
  this is achieved by using gdb_test_multiple that
will empty the buffer on each regular expression match.
  It also avoids an early return as it specifically
checks the prompt output that appear in the middle.

  OK to apply:


Pierre Muller
Pascal language support maintainer for GDB


Tested on a GCC compile farm x86_64 linux machine:
diff pristine/gdb.sum patched/gdb.sum

< Test Run By muller on Fri Aug  6 12:10:06 2010 
---
> Test Run By muller on Fri Aug  6 16:30:14 2010
3421,3424c3421,3423
< ERROR: internal buffer is full.
< UNRESOLVED: gdb.base/default.exp: info set
< FAIL: gdb.base/default.exp: info symbol
< FAIL: gdb.base/default.exp: info source
---
> PASS: gdb.base/default.exp: info set
> PASS: gdb.base/default.exp: info symbol
> PASS: gdb.base/default.exp: info source
3553,3555c3552,3553
< ERROR: internal buffer is full.
< UNRESOLVED: gdb.base/default.exp: show
< FAIL: gdb.base/default.exp: stepi "si" abbreviation
---
> PASS: gdb.base/default.exp: show
> PASS: gdb.base/default.exp: stepi "si" abbreviation
17026c17024
< KFAIL: gdb.threads/watchthreads2.exp: gdb can drop watchpoints in
multithreade
d app (PRMS: gdb/10116)
---
> PASS: gdb.threads/watchthreads2.exp: all threads incremented x
17318,17319c17316,17317
< # of expected passes          16310
< # of unexpected failures      132
---
> # of expected passes          16316
> # of unexpected failures      129
17323d17320
< # of unresolved testcases     2

testsuite ChangeLog entry:

2010-08-06  Pierre Muller  <muller@ics.u-strasbg.fr>

	* gdb.base/default.exp (info set): Avoid full buffer error and force
	reading up to final gdb prompt.
	(show): Likewise.

Attachment: testsuite-default.exp
Description: Binary data