Libc-262.tar.gz

[apple/libc.git] / pthreads / stack.s

diff --git a/pthreads/stack.s b/pthreads/stack.s
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+/*
+ * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991  
+ *              All Rights Reserved 
+ *  
+ * Permission to use, copy, modify, and distribute this software and 
+ * its documentation for any purpose and without fee is hereby granted, 
+ * provided that the above copyright notice appears in all copies and 
+ * that both the copyright notice and this permission notice appear in 
+ * supporting documentation. 
+ *  
+ * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
+ * FOR A PARTICULAR PURPOSE. 
+ *  
+ * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 
+ * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 
+ * 
+ */
+/*
+ * MkLinux
+ */
+
+.text
+
+#if defined(__ppc__)
+#import        <architecture/ppc/asm_help.h>
+#import        <architecture/ppc/pseudo_inst.h>
+
+/*     
+ * void *_sp(void)
+ */
+
+LEAF(__sp)
+       mr      r3,r1
+       blr
+
+/*
+ * void *_adjust_sp(void *sp)
+ */
+LEAF(__adjust_sp)
+       subi    r3,r3,0x100             /* Stack frame padding */
+       blr     
+
+#elif defined(__i386__)
+
+#import        <architecture/i386/asm_help.h>
+/*     
+ * void *_sp(void)
+ */
+
+LEAF(__sp,0)
+       movl    %esp,%eax
+       ret
+
+/*
+ * void *_adjust_sp(void *sp)
+ */
+LEAF(__adjust_sp,0)
+       movl    4(%esp),%eax
+       subl    $0x100,%eax
+       ret
+
+#else
+#error sp functions not defined for this architecture
+#endif
+