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Tighten gdb.threads/no-unwaited-for-left.exp regexps

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A WIP version of a patch
(https://sourceware.org/pipermail/gdb-patches/2022-June/190202.html)
resulted in a bug that went unnoticed by the testuite, like so:

 (gdb) PASS: gdb.threads/no-unwaited-for-left.exp: enable scheduler-locking, for main thread
 continue
 Continuing.
 [New Thread 1251861.1251861]
 No unwaited-for children left.
 (gdb) PASS: gdb.threads/no-unwaited-for-left.exp: continue stops when the main thread exits
 info threads
   Id   Target Id                                Frame
   3    Thread 1251861.1251863 "no-unwaited-for" __pthread_clockjoin_ex (threadid=140737351558976, thread_return=0x0, clockid=<optimized out>, abstime=<optimized out>, block=<optimized out>) at pthread_join_common.c:145
   4    Thread 1251861.1251861 "no-unwaited-for" <unavailable> in ?? ()

 The current thread <Thread ID 1> has terminated.  See `help thread'.
 (gdb) PASS: gdb.threads/no-unwaited-for-left.exp: only thread 3 left, main thread terminated

Somehow, above, GDB re-added the zombie leader back before printing
"No unwaited-for children left.".  The "only thread 3 left, main
thread terminated" test should have caught this, but didn't.  That is
because the test's regexp has a ".*" after the part that matches
thread 3.  This commit tightens that regexp to catch such a bug.  It
also tightens the "only main thread left, thread 2 terminated" test's
regexp in the same way.

Change-Id: I8744f327a0aa0e2669d1ddda88247e99b91cefff
This commit is contained in:
Pedro Alves
2022-06-15 15:30:23 +01:00
parent 2b8b0dca3b
commit 9779607aff
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
gdb/testsuite/gdb.threads/no-unwaited-for-left.exp
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@ -42,7 +42,7 @@ gdb_test "continue" \
"continue stops when thread 2 exits"
gdb_test "info threads" \
"\r\n\[ \t\]*Id\[ \t\]+Target\[ \t\]+Id\[ \t\]+Frame\[ \t\]*\r\n *1 *Thread \[^\r\n\]* \[^\r\n\]*.*The current thread <Thread ID 2> has terminated.*" \
"\r\n\[ \t\]*Id\[ \t\]+Target\[ \t\]+Id\[ \t\]+Frame\[ \t\]*\r\n *1 *Thread \[^\r\n\]* \[^\r\n\]*\[\r\n\]*The current thread <Thread ID 2> has terminated.*" \
"only main thread left, thread 2 terminated"
# Select the main thread, let the third thread start, and stop at the
@ -63,7 +63,7 @@ gdb_test "continue" \
"continue stops when the main thread exits"
gdb_test "info threads" \
"\r\n\[ \t\]*Id\[ \t\]+Target\[ \t\]+Id\[ \t\]+Frame\[ \t\]*\r\n *3 *Thread \[^\r\n\]* \[^\r\n\]*.*The current thread <Thread ID 1> has terminated.*" \
"\r\n\[ \t\]*Id\[ \t\]+Target\[ \t\]+Id\[ \t\]+Frame\[ \t\]*\r\n *3 *Thread \[^\r\n\]* \[^\r\n\]*\[\r\n\]*The current thread <Thread ID 1> has terminated.*" \
"only thread 3 left, main thread terminated"
# Make sure thread apply all works when we have exited threads in the