[Bug symtab/8300] no local symbol information within nested or nesting procedures

[Bug symtab/8300] no local symbol information within nested or nesting procedures

[tromey at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=8300

--- Comment #8 from Tom Tromey <tromey at redhat dot com> 2012-07-11 13:26:57 UTC ---
I have a patch but I think it requires a gcc bug fix first:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53927

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[Bug symtab/8300] no local symbol information within nested or nesting procedures

[tromey at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=8300

Tom Tromey <tromey at redhat dot com> changed:

           What    |Removed                     |Added
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           Keywords|                            |archer

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[Bug symtab/8300] no local symbol information within nested or nesting procedures

[tromey at redhat dot com]

------- Additional Comments From tromey at redhat dot com  2010-07-29 19:43 -------
I looked at this a little more deeply today, with some advice from Roland.

The problem in this case is that the 'subproc' function does not reference
any variables from its enclosing context.  So, gcc does not emit
DW_AT_static_link.  I think the right thing to do in this case is to throw
an error for any variable from the outer function that requires a frame.

If you add a mention of 'w' to 'subproc', then the DWARF looks better.
However, gdb doesn't ever use DW_AT_static_link, so if you get the right
answer it is purely by accident.

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[Bug symtab/8300] no local symbol information within nested or nesting procedures

[tromey at redhat dot com]

------- Additional Comments From tromey at redhat dot com  2010-02-04 21:11 -------
I tried this today.  It mostly works -- I can step into the nested function
and print its arguments and locals.
gdb recognizes the symbols from the enclosing function, but it gets their
values wrong:

(gdb) p w
$2 = 5930
(gdb) p x
$3 = 5929
(gdb) p y
$4 = -1073744072


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[Bug symtab/8300] no local symbol information within nested or nesting procedures

[jan dot kratochvil at redhat dot com]

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                 CC|                            |jan dot kratochvil at redhat
                   |                            |dot com


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