[gdb/testsuite] Add note to 'Race detection' entry in README

Add note to 'Race detection' entry in README about the possibility that
check-read1 makes failing tests pass.

gdb/testsuite/ChangeLog:

2020-02-04  Tom de Vries  <tdevries@suse.de>

	* README (Race detection): Add note.

Change-Id: I12ef2f0ec35abc5a0221585bf30e5f4f0616aa7c
This commit is contained in:
Tom de Vries
2020-02-04 17:36:17 +01:00
parent f90ac7c2bb
commit f8dcc90b60
2 changed files with 11 additions and 0 deletions

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@ -1,3 +1,7 @@
2020-02-04 Tom de Vries <tdevries@suse.de>
* README (Race detection): Add note.
2020-02-04 Tom de Vries <tdevries@suse.de>
* lib/gdb.exp (inferior_exited_re): Use "\[^\n\r\]*" instead of ".*".

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@ -352,6 +352,13 @@ Examples:
make -j10 check-read1 TESTS="*/paginate-*.exp"
make -j10 check READ1="1"
Note: While the intention is to detect races and make otherwise passing tests
fail, it can also have the effect of making otherwise failing tests pass.
This happens f.i. if the test is trying to match a gdb prompt using an end of
input marker "${gdb_prompt} $" and there is output after the gdb prompt. This
may either pass or fail in normal operation, but using check-read1 will ensure
that it passes.
Testsuite Configuration
***********************