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Re: Can LD give warnings about the non-static functions defined but never used explicitly?

From: David Daney <ddaney at caviumnetworks dot com>
To: Pan ruochen <panruochen at gmail dot com>
Cc: binutils at sourceware dot org
Date: Mon, 24 Nov 2008 08:20:55 -0800
Subject: Re: Can LD give warnings about the non-static functions defined but never used explicitly?
References: <af0faace0811232319n6e6789e5t6cc39ff5be836ed4@mail.gmail.com>

Pan ruochen wrote:

Hi All,

Can LD give warnings about the non-static functions defined but never
used explicitly? I want to optimize the code size by removing those
unused functions.

Compile your code with -ffunction-sections -fdata-sections.

Then link with -Wl,--gc-sections

In theory, that should eliminated unreferenced functions and data objects from the final object.

David Daney

Follow-Ups:
- Re: Can LD give warnings about the non-static functions defined but never used explicitly?
  - From: Pan ruochen

References:
- Can LD give warnings about the non-static functions defined but never used explicitly?
  - From: Pan ruochen

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