lxdream 0.9.1| filename | acinclude.m4 |
| changeset | 923:13ac59a786f4 |
| next | 927:17b6b9e245d8 |
| author | nkeynes |
| date | Sun Dec 14 07:50:48 2008 +0000 (15 years ago) |
| permissions | -rw-r--r-- |
| last change | Setup a 'proper' stackframe in translated blocks. This doesn't affect performance noticeably, but does ensure that a) The stack is aligned correctly on OS X with no extra effort, and b) We can't mess up the stack and crash that way anymore. Replace all PUSH/POP instructions (outside of prologue/epilogue) with ESP-rel moves to stack local variables. Finally merge ia32mac and ia32abi together, since they're pretty much the same now anyway (and thereby simplifying maintenance a good deal) |
| file | annotate | diff | log | raw |
| nkeynes@923 | 1 | # AC_CHECK_FASTCALL([if-ok],[if-notok]) |
| nkeynes@923 | 2 | # Test if the compiler recognizes __attribute__((regparm(3))) - we don't |
| nkeynes@923 | 3 | # currently check if it actually works correctly, but probably should... |
| nkeynes@923 | 4 | # ----------------------- |
| nkeynes@923 | 5 | AC_DEFUN([AC_CHECK_FASTCALL], [ |
| nkeynes@923 | 6 | AC_MSG_CHECKING([support for fastcall calling conventions]); |
| nkeynes@923 | 7 | AC_RUN_IFELSE([ |
| nkeynes@923 | 8 | AC_LANG_SOURCE([[ |
| nkeynes@923 | 9 | int __attribute__((regparm(3))) foo(int a, int b) { return a+b; }
|
| nkeynes@923 | 10 | |
| nkeynes@923 | 11 | int main(int argc, char *argv[]) |
| nkeynes@923 | 12 | {
|
| nkeynes@923 | 13 | return foo( 1, 2 ) == 3 ? 0 : 1; |
| nkeynes@923 | 14 | }]])], [ |
| nkeynes@923 | 15 | AC_MSG_RESULT([yes]) |
| nkeynes@923 | 16 | $1 ], [ |
| nkeynes@923 | 17 | AC_MSG_RESULT([no]) |
| nkeynes@923 | 18 | $2 ]) |
| nkeynes@923 | 19 | ]) |
| nkeynes@923 | 20 |
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