[PATCH] Update help of the "frame" command

[Simon Marchi]

On 17-01-10 06:00 AM, Yao Qi wrote:
> On 17-01-09 13:13:42, Simon Marchi wrote:
>> Indeed, it's the commit "Initial creation of sourceware repository".
>> I checked out that commit and looked at the code, but couldn't find
>> anything that would suggest that the output of the frame command
>> would not be printed when it's executing in a script or user
>> command.
>>
>> I went earlier using the old tarballs on the website [1], and found
>> that in old gdb's, there was code like this:
>>
>>  965   if (!from_tty)
>>  966     return;
>>  967
>>  968   print_stack_frame (selected_frame, selected_frame_level, 1);
>>
>> The (!from_tty) check disappeared in gdb 4.3.  I think it's this change:
>>
>>  873 Thu Oct 24 09:33:44 1991  John Gilmore  (gnu at cygnus.com)
>>  874
>>  875         * stack.c (frame_command):  Always print.  Use new
>>  876         frame_select_command to select a frame without printing.
>>
>> after that, the frame_command function becomes simply:
>>
>>  974 static void
>>  975 frame_command (level_exp, from_tty)
>>  976      char *level_exp;
>>  977      int from_tty;
>>  978 {
>>  979   select_frame_command (level_exp, from_tty);
>>  980   print_stack_frame (selected_frame, selected_frame_level, 1);
>>  981 }
>>
>> So I think it's safe.
> 
> Thanks for digging it up.  Patch is OK.
> 
>>
>> Side-question, is there a git repo somewhere with all these old gdb
>> versions, those that predate what's in the current git tree?  It
>> would be useful to have a repo with one commit per version.  Here I
>> had to download many tarballs and bisect manually, but if they had
>> been in a repo it would have been trivial.  If it doesn't exist yet,
>> I think I'll do it.
>>
>> [1] ftp://sourceware.org/pub/gdb/old-releases/
> 
> They were imported into the git repository.  The change you found
> above is in b00771232fab861fb31e42dfd5f6643ba1b43cc9
> 

Ah ok, it seems like there is a disconnect at "Initial creation of sourceware repository",
my blame tool doesn't allow me to go past that.  But indeed, if I manually checkout a
previous commit I see the older versions.

I added a reference to that commit in my commit log and pushed the patch, thanks.