diff options
author | Paul Mundt <lethal@linux-sh.org> | 2008-11-18 17:33:48 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2008-12-22 18:42:53 +0900 |
commit | 1aad54a99b6ce316c851ba99b2efe41998cfd37d (patch) | |
tree | 287f90771c7da18a0841d40db1c0ce92ea7f5820 /arch/sh/lib/ashldi3.c | |
parent | e9bf51e5ccc7703226c79888603e157066213700 (diff) | |
download | linux-1aad54a99b6ce316c851ba99b2efe41998cfd37d.tar.bz2 |
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/ashldi3.c')
-rw-r--r-- | arch/sh/lib/ashldi3.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/sh/lib/ashldi3.c b/arch/sh/lib/ashldi3.c new file mode 100644 index 000000000000..beb80f316095 --- /dev/null +++ b/arch/sh/lib/ashldi3.c @@ -0,0 +1,29 @@ +#include <linux/module.h> + +#include "libgcc.h" + +long long __ashldi3(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.low = 0; + w.s.high = (unsigned int) uu.s.low << -bm; + } else { + const unsigned int carries = (unsigned int) uu.s.low >> bm; + + w.s.low = (unsigned int) uu.s.low << b; + w.s.high = ((unsigned int) uu.s.high << b) | carries; + } + + return w.ll; +} + +EXPORT_SYMBOL(__ashldi3); |