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[Tinycc-devel] ABI compatibility

From: James Lyon
Subject: [Tinycc-devel] ABI compatibility
Date: Mon, 22 Apr 2013 19:32:47 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130329 Thunderbird/17.0.5


I've been trying to use TCC as an embedded C compiler (instead of using GCC and dlopen/LoadLibrary). I ran into a few ABI compatibility issues (on Linux (x86-64), Win32 and Win64), basically to do with the way TCC passes and returns structs/unions. It seems that TCC generally expects that structs are passed and returns on the stack or via pointers, and on these 3 platforms it is also possible that they will be packed into registers. Anyway, I've also been working on fixing these problems and Linux (x86-64) and Win32 appear to work (at least, they pass the tests I'm using). Anyway, I'm really just emailing to say hello and start towards hopefully getting this stuff merged in.


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