From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31956 invoked by alias); 23 Feb 2010 17:14:05 -0000 Received: (qmail 31845 invoked by uid 22791); 23 Feb 2010 17:14:03 -0000 X-SWARE-Spam-Status: No, hits=-1.9 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from smtp2.belwue.de (HELO smtp2.belwue.de) (129.143.2.15) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 23 Feb 2010 17:13:59 +0000 Received: from mx4.science-computing.de (mx4.science-computing.de [193.197.16.30]) by smtp2.belwue.de with ESMTP id o1NHDuI6027464 for ; Tue, 23 Feb 2010 18:13:56 +0100 (MET) env-from (prvs=663ad43a6=H.Koenig@science-computing.de) Received: from localhost (localhost [127.0.0.1]) by scmail.science-computing.de (Postfix) with ESMTP id 597FBAC003; Tue, 23 Feb 2010 18:13:55 +0100 (CET) Received: from scmail.science-computing.de ([127.0.0.1]) by localhost (guinesstest.science-computing.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id z4dHeNTzuf14; Tue, 23 Feb 2010 18:13:48 +0100 (CET) Received: from atuin.science-computing.de (atuin.science-computing.de [10.10.8.66]) by scmail.science-computing.de (Postfix) with ESMTP id B03D8AC001; Tue, 23 Feb 2010 18:13:48 +0100 (CET) Received: by atuin.science-computing.de (Postfix, from userid 1009) id 9BF3F89D91; Tue, 23 Feb 2010 18:13:48 +0100 (CET) Date: Tue, 23 Feb 2010 17:14:00 -0000 From: Harald Koenig To: Harald Koenig Cc: Pedro Alves , bug-gdb@gnu.org, gdb-patches@sourceware.org, Harald Koenig Subject: Re: some compile errors fo gdb-7.0.1 Message-ID: <20100223171348.GA31492@atuin.science-computing.de> References: <20100215141621.GA9469@atuin.science-computing.de> <201002181923.34196.pedro@codesourcery.com> <20100223163505.GA21619@atuin.science-computing.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20100223163505.GA21619@atuin.science-computing.de> User-Agent: Mutt/1.5.18 (2008-05-17) Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2010-02/txt/msg00571.txt.bz2 Hi, here is a problem report for break points on AIX 5.1 and 5.3. first AIX 5.3: if a program first runs in gdb without any break points and finished, then it's not possible to set break a break point for the next run (this is the same on AIX 5.1 too): # gdb a.out GNU gdb (GDB) 7.1.50.20100222-cvs Reading symbols from a.out...done. (gdb) r Starting program: a.out hello Program exited normally. (gdb) b main ==> Cannot access memory at address 0xf00d7530 (gdb) q with bogus address "0xf00d7530" if there is a(ny) break point set for the 1st run things seem to work fine: # gdb a.out GNU gdb (GDB) 7.1.50.20100222-cvs Reading symbols from a.out...done. (gdb) b main Breakpoint 1 at 0x100003c8: file hello.c, line 23. (gdb) r Starting program: a.out Breakpoint 1, main (argc=1, argv=0x2ff22578, env=0x2ff22580) at hello.c:23 23 main(int argc... (gdb) c Continuing. hello Program exited normally. (gdb) r Starting program: a.out Breakpoint 1, main (argc...=1, argv=0x2ff22578, env=0x2ff22580) at hello.c:23 23 main(int argc, ... (gdb) c Continuing. hello Program exited normally. (gdb) b main Note: breakpoint 1 also set at pc 0x100003c8. Breakpoint 2 at 0x100003c8: file hello.c, line 23. (gdb) r Starting program: a.out Breakpoint 1, main (argc=1, argv=0x2ff22578, env=0x2ff22580) at hello.c:23 23 main(int argc, ... (gdb) c Continuing. hello Program exited normally. (gdb) =============================================================================== on AIX 5.1 though setting a break point before the first run only seems to work, but that break point is not functional for the 1st run: Reading symbols from a.out...done. (gdb) b main Breakpoint 1 at 0x100003c8: file hello.c, line 23. (gdb) i b Num Type Disp Enb Address What 1 breakpoint keep y 0x100003c8 in main at hello.c:23 (gdb) r Starting program: a.out ==> Error in re-setting breakpoint 1: Cannot access memory at address 0x0 ==> Error in re-setting breakpoint 1: Cannot access memory at address 0x0 hello Program exited normally. (gdb) i b Num Type Disp Enb Address What 1 breakpoint keep y 0x100003c8 in main at hello.c:23 and that break point doesn't function either in a 2nd run: (gdb) r Starting program: a.out hello Program exited normally. but if I add another bp to main (or another function) gdb starts to work "better";) (gdb) i b Num Type Disp Enb Address What 1 breakpoint keep n 0x100003c8 in main at hello.c:23 (gdb) b main Note: breakpoint 1 (disabled) also set at pc 0x100003c8. Breakpoint 2 at 0x100003c8: file hello.c, line 23. (gdb) r Starting program: a.out Breakpoint 2, main (argc=1, argv=0x2ff2248c, env=0x2ff22494) at hello.c:23 23 main(int argc,... (gdb) i b Num Type Disp Enb Address What 1 breakpoint keep n 0x100003c8 in main at hello.c:23 2 breakpoint keep y 0x100003c8 in main at hello.c:23 breakpoint already hit 1 time (gdb) c Continuing. hello Program exited normally. (gdb) r Starting program: a.out Breakpoint 2, main (argc=1, argv=0x2ff2248c, env=0x2ff22494) at hello.c:23 23 main(int argc,... (gdb) c Continuing. hello Program exited normally. (gdb) any thoughts about that breakpoint weirdnes son AIX ?!? right now I'm trying to build gdb on AIX 6.1 which right now fails here "gdb-CVS-20100222/gdb/aix-thread.c", line 352.46: 1506-280 (W) Function argument assignment between types "int*" and "unsigned int*" is not allowed. where the source reads like this -- hmmmmm.... /* getthrds(3) isn't prototyped in any AIX 4.3.3 #include file. */ extern int getthrds (pid_t, struct thrdsinfo64 *, int, pthdb_tid_t *, int); but now I have to leave for today -- stay tuned ;-)) Harald Koenig -- "I hope to die ___ _____ before I *have* to use Microsoft Word.", 0--,| /OOOOOOO\ Donald E. Knuth, 02-Oct-2001 in Tuebingen. <_/ / /OOOOOOOOOOO\ \ \/OOOOOOOOOOOOOOO\ \ OOOOOOOOOOOOOOOOO|// Harald Koenig \/\/\/\/\/\/\/\/\/ science+computing ag // / \\ \ koenig@science-computing.de ^^^^^ ^^^^^ -- Vorstand/Board of Management: Dr. Bernd Finkbeiner, Dr. Roland Niemeier, Dr. Arno Steitz, Dr. Ingrid Zech Vorsitzender des Aufsichtsrats/ Chairman of the Supervisory Board: Michel Lepert Sitz/Registered Office: Tuebingen Registergericht/Registration Court: Stuttgart Registernummer/Commercial Register No.: HRB 382196