Re: [PATCH] DWARF: Don't add nameless modules to partial symbol table.

[Bernhard Heckel <bernhard dot heckel at intel dot com>]

On 21/10/2016 17:37, Yao Qi wrote:
> Bernhard Heckel <bernhard.heckel@intel.com> writes:
>
> > A name for BLOCK DATA in Fortran is optional. If no
> > name has been assigned, GDB will crash during read-in of DWARF
> > when BLOCK DATA is represented via DW_TAG_module.
> > BLOCK DATA is used for one-time initialization of
> > non-pointer variables in named common blocks.
> I compiled your test case block-data.f, but there is no DW_TAG_module in
> debug info.  It has DW_TAG_common_block.  IOW, I run block-data.exp
> without your fix in dwarf2read.c, there is no crash in GDB.  My gfotran
> is 4.9.3.
It happen when compiled with Ifort. I attached a dump of the debug info, 
line 80+ is important.

Do you want me to send you an executable as reproducer?
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Attachment: ifort-dwarf-block-data.txt
Description: Text document