rt: Fix i386/morestack.S for static linking

Author: brson

src/rt/arch/i386/morestack.S

@@ -94,7 +94,8 @@ MORESTACK:
     movl NEW_STACK_ADDR,%eax
     movl %eax,(%esp)
     movl %edx,4(%esp)
-    calll UPCALL_CALL_C_STACK
+    // FIXME: Don't understand why just _here_ I have to say @PLT
+    calll UPCALL_CALL_C_STACK@PLT
 
     movl 12(%esp),%edx          // Grab the return pointer.
     addl $RETURN_OFFSET,%edx    // Skip past the `add esp,4` and the `ret`.

src/rt/rust_internal.h

@@ -96,7 +96,7 @@ static size_t const BUF_BYTES = 2048;
 
 // FIXME: We want this to be 128 but need to slim the red zone calls down
 #ifdef __i386__
-#define RED_ZONE_SIZE 256
+#define RED_ZONE_SIZE 2048
 #endif
 
 #ifdef __x86_64__