Re: bin/47430: gdb can't debug threaded programs

[Andreas Gustafsson <gson%gson.org@localhost>]

The following reply was made to PR bin/47430; it has been noted by GNATS.

From: Andreas Gustafsson <gson%gson.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: christos%NetBSD.org@localhost
Subject: Re: bin/47430: gdb can't debug threaded programs
Date: Sun, 2 Feb 2014 13:04:47 +0200

 [Second attempt, the first one got sent prematurely...]
 
 I ran a couple of automated bisections on i386 to determine when this
 bug was first fixed and when it regressed.
 
 The success criterion was that the following shell script
 should exit with a zero exit status:
 
 cat <<EOF >test.gdb
 run +time=1 +tries=1 @127.0.0.177
 cont
 cont
 cont
 cont
 cont
 EOF
 gdb --batch -x test.gdb dig >gdb.out
 cat gdb.out
 ! grep "Program received signal SIGTRAP" gdb.out
 
 Based on this criterion, the bug was fixed by christos in 
 January 2013 with these commits:
 
   2013.01.20.18.18.07 christos src/lib/libpthread_dbg/pthread_dbg.c 1.41
   2013.01.20.18.18.07 christos src/lib/libpthread_dbg/pthread_dbg_int.h 1.7
 
 And it was reintroduced in October 2013 between source dates
 2013.10.03.13.40.26 and 2013.10.04.15.24.44, which coincides with
 the import of gdb 7.4.1.
 -- 
 Andreas Gustafsson, gson%gson.org@localhost