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authorDavid Howells <dhowells@redhat.com>2008-07-04 12:59:47 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-04 13:40:07 -0400
commitfc26361ef0fbcad0406475fc6006fa4f09e60dce (patch)
tree26c8b01954156e5fae34acb281093cc815e56edc
parent7fc7228c0be9007f0e6a32c8a8ae340ea6246056 (diff)
mn10300: provide __ucmpdi2() for MN10300
Provide __ucmpdi2() for MN10300 so that allmodconfig can be built. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/mn10300/kernel/mn10300_ksyms.c2
-rw-r--r--arch/mn10300/lib/Makefile2
-rw-r--r--arch/mn10300/lib/__ucmpdi2.S43
3 files changed, 46 insertions, 1 deletions
diff --git a/arch/mn10300/kernel/mn10300_ksyms.c b/arch/mn10300/kernel/mn10300_ksyms.c
index 544ee1ae8c41..f9eb9753a404 100644
--- a/arch/mn10300/kernel/mn10300_ksyms.c
+++ b/arch/mn10300/kernel/mn10300_ksyms.c
@@ -34,7 +34,9 @@ extern u64 __ashrdi3(u64, unsigned);
34extern u64 __ashldi3(u64, unsigned); 34extern u64 __ashldi3(u64, unsigned);
35extern u64 __lshrdi3(u64, unsigned); 35extern u64 __lshrdi3(u64, unsigned);
36extern s64 __negdi2(s64); 36extern s64 __negdi2(s64);
37extern int __ucmpdi2(u64, u64);
37EXPORT_SYMBOL(__ashrdi3); 38EXPORT_SYMBOL(__ashrdi3);
38EXPORT_SYMBOL(__ashldi3); 39EXPORT_SYMBOL(__ashldi3);
39EXPORT_SYMBOL(__lshrdi3); 40EXPORT_SYMBOL(__lshrdi3);
40EXPORT_SYMBOL(__negdi2); 41EXPORT_SYMBOL(__negdi2);
42EXPORT_SYMBOL(__ucmpdi2);
diff --git a/arch/mn10300/lib/Makefile b/arch/mn10300/lib/Makefile
index fdfa9ec5b5bb..0cd2346f4c13 100644
--- a/arch/mn10300/lib/Makefile
+++ b/arch/mn10300/lib/Makefile
@@ -4,4 +4,4 @@
4 4
5lib-y = delay.o usercopy.o checksum.o bitops.o memcpy.o memmove.o memset.o 5lib-y = delay.o usercopy.o checksum.o bitops.o memcpy.o memmove.o memset.o
6lib-y += do_csum.o 6lib-y += do_csum.o
7lib-y += __ashldi3.o __ashrdi3.o __lshrdi3.o negdi2.o 7lib-y += __ashldi3.o __ashrdi3.o __lshrdi3.o negdi2.o __ucmpdi2.o
diff --git a/arch/mn10300/lib/__ucmpdi2.S b/arch/mn10300/lib/__ucmpdi2.S
new file mode 100644
index 000000000000..60dcbdfe386c
--- /dev/null
+++ b/arch/mn10300/lib/__ucmpdi2.S
@@ -0,0 +1,43 @@
1/* __ucmpdi2.S: 64-bit unsigned compare
2 *
3 * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12
13 .text
14 .p2align 4
15
16###############################################################################
17#
18# int __ucmpdi2(unsigned long long a [D0:D1],
19# unsigned long long b [(SP,12),(SP,16)])
20#
21# - returns 0, 1, or 2 as a <, =, > b respectively.
22#
23###############################################################################
24 .globl __ucmpdi2
25 .type __ucmpdi2,@function
26__ucmpdi2:
27 mov (12,sp),a0 # b.lsw
28 mov (16,sp),a1 # b.msw
29
30 sub a0,d0
31 subc a1,d1 # may clear Z, never sets it
32 bne __ucmpdi2_differ # a.msw != b.msw
33 mov +1,d0
34 rets
35
36__ucmpdi2_differ:
37 # C flag is set if LE, clear if GE
38 subc d0,d0 # -1 if LE, 0 if GE
39 add +1,d0 # 0 if LE, 1 if GE
40 add d0,d0 # 0 if LE, 2 if GE
41 rets
42
43 .size __ucmpdi2, .-__ucmpdi2