wine_call_on_stack Sparc Edition

[André Hentschel]

Hi Austin,
This patch is totally untestet! I spend some hours reading into Sparc and this came out :)
But of my experience i am sure with it by about 85%.
So hopefully it works. I guess you really have only to remake libs/wine,
but if somethings wents wrong try compiling kernel32, ntdll and wineboot to see if something gets further, if so remake everything :)

---
 libs/wine/port.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/libs/wine/port.c b/libs/wine/port.c
index 3562afa..ab00e09 100644
--- a/libs/wine/port.c
+++ b/libs/wine/port.c
@@ -182,6 +182,18 @@ __ASM_GLOBAL_FUNC( wine_call_on_stack,
                    "mov PC, r2\n\t"     /* call func */
                    "mov sp, r4\n\t"     /* restore old sp from local var */
                    "pop {r4,PC}")       /* fetch return address into pc */
+#elif defined(__sparc__) && defined(__GNUC__)
+__ASM_GLOBAL_FUNC( wine_call_on_stack,
+                   "save %sp, -96, %sp\n\t" /* push: change register window */
+                   "mov %sp, %l2\n\t"       /* store old sp in local var */
+                   "mov %i0, %l0\n\t"       /* func */
+                   "mov %i1, %l1\n\t"       /* arg */
+                   "sub %i2, 96, %sp\n\t"   /* stack */
+                   "call %l0, 0\n\t"        /* call func */
+                   "mov %l1, %o0\n\t"       /* delay slot:  arg for func */
+                   "mov %l2, %sp\n\t"       /* restore old sp from local var */
+                   "ret\n\t"                /* return */
+                   "restore\n\t")           /* delay slot: pop */
 #else
 #error You must implement wine_switch_to_stack for your platform
 #endif
-- 
1.7.3.1.50.g1e633