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Re: [gcc plugin] get member offset in struct just like offsetof
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: dotpy <dotpy2 at 163 dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 06 Feb 2018 17:58:17 +0100
- Subject: Re: [gcc plugin] get member offset in struct just like offsetof
- Authentication-results: sourceware.org; auth=none
- References: <79a21353.8b8a.1616bb84efc.Coremail.dotpy2@163.com>
> I am writing a gcc plugin for parsing the structure fields. But I have the
> problem how to get the offset of each field in the struct? Just like the
> offsetof macro in gcc.
>
> I see DECL_FIELD_OFFSET in tree.h, but the result seems not right.
The offset in bits/bytes is given by tree.c:bit_position/byte_position.
--
Eric Botcazou