This is the mail archive of the gcc-help@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: compiling gcc in debug

From: Georg-Johann Lay <avr at gjlay dot de>
To: "Vincent R." <forumer at smartmobili dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Mon, 06 Apr 2009 17:28:02 +0200
Subject: Re: compiling gcc in debug
References: <0d45513c31e4d2ea0c6f6e12f209157b@mail.smartmobili.com>

Vincent R. schrieb:

Hi,
When debugging gcc, debugger sometimes seems mad because it jumps from one
place to another
maybe due to the fact that some functions are inlined.
How can I build a gcc in debug mode id without -O2 ?
In gcc Makefile I can see that : CFLAGS_FOR_BUILD = -g -O2 CXXFLAGS_FOR_BUILD = -g -O2 BOOT_CFLAGS= -g -O2

Maybe I need to pass some flags to configure ?

You can use make cc1 CFLAGS='-O0 -g' in gcc directory, resp. for cc1plus.

It is also helpful to strip the #line notes from the generated C-files (insn-emit.c, insn-recog.c, ...), because these notes confuse the debugger as they point to md.

Georg-Johann

References:
- compiling gcc in debug
  - From: Vincent R.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]