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Date: | Tue, 13 Nov 2001 14:44:27 +1100 (EST) |
From: | =?iso-8859-1?q?Danny=20Smith?= <danny_r_smith_2001 AT yahoo DOT co DOT nz> |
Subject: | Fastcall support added to MinGW |
To: | cygwin-apps <cygwin-apps AT cygwin DOT com>, |
Mingw <mingw-users AT lists DOT sourceforge DOT net> | |
MIME-Version: | 1.0 |
I have upload beta releases of gcc-2.95.3 and binutils-2.11.92 to MinGW's Sourceforge File Release page: https://sourceforge.net/project/showfiles.php?group_id=2435 These are labelled: gcc-2.95.3-20011106-beta and binutils-2.11.92-20011113-beta The main feature provided by these beta releases is the ability to use fastcall functions with MinGW. Thanks go to Eric Kohl for this feature. On the Intel 386, the `fastcall' attribute causes the compiler to pass the fist two arguments in the registers ECX and EDX. Subsequent arguments are passed on the stack. The called function will pop the arguments off the stack. If the number of arguments is variable all arguments are pushed on the stack. To use fastcall mark your functions like so: int __fastcall foo(int a, int b); This will produce symbol @foo$8 (and _imp_ AT foo@8 if marked as dllimport). The --add-stdcall-alias and the --kill-at features of dlltool and ld remove all decoration from fastcall symbols, ie, they add the alias foo = @foo AT n However, the --enable-stdcall-fixup feature (which is on by default) has not yet been extended to fastcall symbols. That is, an undefined symbol @foo AT n will *not* automatically be resolved to a defined symbol foo. Th gcc snapshot also fixes a bug in profiling and changes gcc's handling of win32-thread support. The latter will not add any new functionality until mingw-runtime has been updated. The binutils beta also fixes two long-standing bugs in windres affecting FONT attributes and child dialog boxes Thanks again to Eric Danny http://briefcase.yahoo.com.au - Yahoo! Briefcase - Manage your files online.
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