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authorPaul Mundt <lethal@linux-sh.org>2008-11-18 17:33:48 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-12-22 18:42:53 +0900
commit1aad54a99b6ce316c851ba99b2efe41998cfd37d (patch)
tree287f90771c7da18a0841d40db1c0ce92ea7f5820 /arch/sh/lib/lshrdi3.c
parente9bf51e5ccc7703226c79888603e157066213700 (diff)
downloadop-kernel-dev-1aad54a99b6ce316c851ba99b2efe41998cfd37d.zip
op-kernel-dev-1aad54a99b6ce316c851ba99b2efe41998cfd37d.tar.gz
sh: Migrate necessary libgcc bits in to arch/sh/lib for SUPERH32.
This moves in the necessary libgcc bits for SUPERH32 and drops the libgcc linking for the regular targets. This in turn allows us to rip out quite a few hacks both in sh_ksyms_32 and arch/sh/Makefile. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/lib/lshrdi3.c')
-rw-r--r--arch/sh/lib/lshrdi3.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/sh/lib/lshrdi3.c b/arch/sh/lib/lshrdi3.c
new file mode 100644
index 0000000..dcf8d68
--- /dev/null
+++ b/arch/sh/lib/lshrdi3.c
@@ -0,0 +1,29 @@
+#include <linux/module.h>
+
+#include "libgcc.h"
+
+long long __lshrdi3(long long u, word_type b)
+{
+ DWunion uu, w;
+ word_type bm;
+
+ if (b == 0)
+ return u;
+
+ uu.ll = u;
+ bm = 32 - b;
+
+ if (bm <= 0) {
+ w.s.high = 0;
+ w.s.low = (unsigned int) uu.s.high >> -bm;
+ } else {
+ const unsigned int carries = (unsigned int) uu.s.high << bm;
+
+ w.s.high = (unsigned int) uu.s.high >> b;
+ w.s.low = ((unsigned int) uu.s.low >> b) | carries;
+ }
+
+ return w.ll;
+}
+
+EXPORT_SYMBOL(__lshrdi3);
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