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Re: compile checksums?

From: Ian Lance Taylor <iant at google dot com>
To: Paul Boyle <paulcboyle at gmail dot com>
Cc: libstdc++ at gcc dot gnu dot org
Date: Tue, 08 Sep 2009 14:47:46 -0700
Subject: Re: compile checksums?
References: <2595c57b0909080533s78e5883as2e16fe8016579115@mail.gmail.com>

Paul Boyle <paulcboyle@gmail.com> writes:

> An example diff is as follows:
> 200,201c200,201
> <       .type   _GLOBAL__I_sum.cpp_9D2164D3_
> 40537BE5, @function
> < _GLOBAL__I_sum.cpp_9D2164D3_40537BE5:
> ---
>>       .type   _GLOBAL__I_sum.cpp_9D2164D3_D6DB2116, @function
>> _GLOBAL__I_sum.cpp_9D2164D3_D6DB2116:

Use diff -u, it's a lot easier to read.

These are random numbers introduced because g++ needs a unique globally
visible name for global constructors.  Use -frandom-seed to control
them.  A common use is -frandom-seed=PATHNAME where PATHNAME is known to
be unique in the program.

Ian

References:
- compile checksums?
  - From: Paul Boyle

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