[RFA/commit] Check library name rather than member name when rereading symbols.

[Tristan Gingold]

On Apr 21, 2010, at 5:40 PM, Pedro Alves wrote:

> On Wednesday 21 April 2010 16:18:03, Joel Brobecker wrote:
>> Hello,
>> 
>> On Darwin, we have lots of complaints being emitted when restarting
>> a program:
>> 
>>    (gdb) start
>>    `a-except.o' has disappeared; keeping its symbols.
>>    `unwind-dw2.o' has disappeared; keeping its symbols.
>>    `s-except.o' has disappeared; keeping its symbols.
>>    `s-traceb.o' has disappeared; keeping its symbols.
>> 
>> These object files are part of the GNAT runtime, and were never available.
>> The warning comes from the fact that we're checking whether the .o files
>> in the GNAT shared runtime have changed whereas we should be checking
>> whether the GNAT shared library itself has changed.
>> 
>> This patch implements this.  Although it is really only useful on a platform
>> such as Darwin (debug info stored in .o files), we believe that this is
>> the right thing to do in general.  This change should be a noop for all
>> the other platforms in any case.
> 
> Makes sense to me.  And it's wonderful to get rid of another
> #ifdef DEPRECATED_IBM6000_TARGET instance.  Though, isn't the
> comment's mention of "shared" a bit misleading?  Isn't this about static
> libraries / archives?  Does this really also apply to shared
> libraries?

For darwin, this applies only to static libraries.  For AIX, I don't know :-)

Tristan.