[Bug ada/23167] "catch exception foo" fails if current language is auto

[Bug ada/23167] "catch exception foo" fails if current language is auto

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=23167

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-07-01
                 CC|                            |tromey at sourceware dot org
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |WAITING

--- Comment #1 from Tom Tromey <tromey at sourceware dot org> ---
(In reply to Simon Wright from comment #0)

> Temporary breakpoint 1 at 0x10000168c: file
> /Users/simon/Analytical_Engine/src/aes.adb, line 36.

This looks like language should be ada...

> (gdb) show lang
> The current source language is "auto; currently ada".

... and part of gdb thought so as well...

>       struct symbol *func = block_linkage_function (block);
> 
>       if (func != NULL)
>         lang = language_def (SYMBOL_LANGUAGE (func));
>       if (lang == NULL || lang->la_language == language_unknown)     <<< 1181
>         lang = current_language;
> 

> (top-gdb) p func
> $1 = (symbol *) 0x104b77f70

It would be interesting to see the contents of 'func'.

A small, self-contained example program might also be good, along
with the command line you used to build it.  I was wondering if perhaps
you were using stabs instead of dwarf, for instance.

The test suite has some tests of 'catch exception', and for me this
works fine as long as I have an Ada runtime with the necessary debuginfo.

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[Bug ada/23167] "catch exception foo" fails if current language is auto

[simon at pushface dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=23167

--- Comment #2 from Simon Wright <simon at pushface dot org> ---
I can’t reproduce this now: several versions of macOS later (now Big Sur), that
gdb doesn’t recognise the executable file format (BFD issue), ...

gdb 10.2 with the patch at PR24069c14 is pretty reliable once started, I
sometimes have to ^C to get out of a hang, usually goes OK after that.

My apologies for not having noted compiler/OS versions at the time.

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[Bug ada/23167] "catch exception foo" fails if current language is auto

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=23167

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|WAITING                     |RESOLVED

--- Comment #3 from Tom Tromey <tromey at sourceware dot org> ---
(In reply to Simon Wright from comment #2)
> I can’t reproduce this now: several versions of macOS later (now Big Sur),
> that gdb doesn’t recognise the executable file format (BFD issue), ...

IIUC this is fixed now.
If I'm in error, please reopen.  Thanks.

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