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Re: [PATCH] Replace the block_found global with explicit data-flow
- From: Pedro Alves <palves at redhat dot com>
- To: sellcey at imgtec dot com, Pierre-Marie de Rodat <derodat at adacore dot com>
- Cc: Doug Evans <xdje42 at gmail dot com>, GDB Patches <gdb-patches at sourceware dot org>
- Date: Mon, 03 Aug 2015 18:12:25 +0100
- Subject: Re: [PATCH] Replace the block_found global with explicit data-flow
- Authentication-results: sourceware.org; auth=none
- References: <55BC8CA9 dot 3070505 at adacore dot com> <1438619922 dot 8302 dot 6 dot camel at ubuntu-sellcey>
Hi Steve,
On 08/03/2015 05:38 PM, Steve Ellcey wrote:
> I am seeing a different build error that I think is due to this patch.
> I only see it on an old CentOS 5.11 system with GCC 4.1.2, and only when
> I build gdb as a 32 bit executable instead of a 64 bit executable.
>
> cc1: warnings being treated as errors
> /scratch/sellcey/repos/gdb-build/src/binutils-gdb/gdb/cp-namespace.c: In function 'cp_lookup_symbol_via_imports':
> /scratch/sellcey/repos/gdb-build/src/binutils-gdb/gdb/cp-namespace.c:482: warning: 'sym.block' may be used uninitialized in this function
>
> It looks like sym.symbol is always initialized, but sym.block is not
> initialized at the beginning of the function. I think it is always
> initialized when used but GCC (at least this version of GCC) cannot seem
> to figure that out.
That's been fixed meanwhile:
https://sourceware.org/ml/gdb-patches/2015-08/msg00018.html
Thanks,
Pedro Alves