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Date: Wed, 08 Jul 2015 10:02:00 -0000
From: Pedro Alves <palves@redhat.com>
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To: Fei Ding <fdingiit@gmail.com>, "gdb@sourceware.org" <gdb@sourceware.org>
Subject: Re: How to enable debug code?
References: <CAGmPkfKZY6LaKsOHMnDMMFtpHmDE5-ahJ7+WFDiPABTXif_0-A@mail.gmail.com>
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On 07/08/2015 04:11 AM, Fei Ding wrote:
> Hi, there:
> 
> I met some problem when enabling debug code, here it is:
> 
> I want to debug the YACC of GDB command line. Specifically, I want
> this code to work: `YYDPRINTF ((stderr, "Starting parse\n"));', which
> at c-exp.c
> 
> So I've tried
> 1. make 'CFLAGS=-DYYDEBUG'
> 2. make YYDEBUG=1
> 
> Both failed. Any hint? Thanks.

No need to build any differently.  Just do "set debug parser on".

Thanks,
Pedro Alves