Re: [PATCH 1/6] DWARF: Don't add nameless modules to partial symbol table.

Yao Qi
2017-08-02T11:16:46Z

"Wiederhake, Tim" <tim.wiederhake@intel.com> writes:

> I'm using the Intel? Fortran Compiler:
>
> $ ifort --version
> ifort (IFORT) 15.0.0 20140716
> Copyright (C) 1985-2014 Intel Corporation. All rights reserved.
>
> $ ifort -g -o block-data testsuite/gdb.fortran/block-data.f
> $ readelf -w block-data | grep DW_TAG_module
> <1><d7>: Abbrev Number: 7 (DW_TAG_module)
> 7 DW_TAG_module [has children]

Hi Tim,
I checked both gfortran and armflang, neither generate DW_TAG_module for
nameless BLOCK DATA.

When I google "block data", I find I reviewed this patch before :)
https://sourceware.org/ml/gdb-patches/2016-11/msg00014.html I didn't see
the point Intel fortran compiler generates DW_TAG_module for a nameless
BLOCK DATA, but GDB shouldn't crash in any case. Could you adjust the
commit log and comments to reflect that Intel fortran compiler
generates DW_TAG_module without DW_AT_name for a nameless BLOCK DATA,
and GDB will crash. This patch is to fix the crash.

--
Yao (齐尧)