Re: meeting 2008-03-19 - version numbers

[Andrew Cagney <cagney@redhat.com>]

Tromey, on irc, was asking what in the below is new:

Andrew Cagney wrote:
> Here's a transcript from using the hpd today (please note kernel 
> "issues" mean it may not work on your system):
>
> $ ./frysk/bindir/fhpd ./frysk/pkglibdir/funit-hello
> [0.0] Loaded executable file: 
> /home/scratch/frysk/git/native/frysk-core/./frysk/pkglibdir/funit-hello
> (fhpd) run
> Attached to process 7518
> starting/running with this command: ./frysk/pkglibdir/funit-hello
> Running process 7518
> (fhpd) Task 7518 is terminating from signal SIGSEGV(11)

It's here.  Previously the behavior was:

(fhpd) Task 9989 is terminating from signal SIGSEGV(11)
focus
Target set      pid     id      path-to-executable
(fhpd)

notice how the thread isn't a member of the focus group as it wasn't 
being stopped during termination; it now is.  Being able to wait until a 
process really is terminating makes things easier; you don't have to 
second guess which of many potential signals will be lethal.  Instead 
just wait for the lethal signal to come along.


> list
> [0.0]
>    34   // exception to your version of the file, but you are not 
> obligated to
>    35   // do so. If you do not wish to provide this exception without
>    36   // modification, you must delete this exception statement from 
> your
>    37   // version and license this file solely under the GPL without
>    38   // exception.
>    39     40   #include <unistd.h>
>    41     42   void
>    43   print(char *what) {
> ->  44     while (*what != '\0') {
>    45       write(1, what, 1);
>    46       what++;
>    47     }
>    48   }
>    49     50   int
>    51   main(int argc, char** argv) {
>    52     // XXX: This forgets to check ARGC.
>    53     print(argv[1]);
> (fhpd) where
> #0 0x080483da in print(char * what) 
> /home/scratch/frysk/git/frysk/frysk-core/frysk/pkglibdir/funit-hello.c#44
> #1 0x08048435 in main(int argc,char ** argv) 
> /home/scratch/frysk/git/frysk/frysk-core/frysk/pkglibdir/funit-hello.c#53
> #2 0x00808390 in __libc_start_main () from /lib/libc-2.7.so
> #3 0x08048311 in _start () from 
> /home/scratch/frysk/git/native/frysk-core/frysk/pkglibdir/funit-hello
> (fhpd) print what
> (char *) 0x0 " < Memory Error > "
> (fhpd)
>
> which is the most straight forward of debugging sessions; and a major 
> milestone.  In the meeting, this brought forward two proposals: