From 1aad54a99b6ce316c851ba99b2efe41998cfd37d Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Tue, 18 Nov 2008 17:33:48 +0900 Subject: 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 --- arch/sh/lib/ashrdi3.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 arch/sh/lib/ashrdi3.c (limited to 'arch/sh/lib/ashrdi3.c') diff --git a/arch/sh/lib/ashrdi3.c b/arch/sh/lib/ashrdi3.c new file mode 100644 index 000000000000..c884a912b660 --- /dev/null +++ b/arch/sh/lib/ashrdi3.c @@ -0,0 +1,31 @@ +#include + +#include "libgcc.h" + +long long __ashrdi3(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 = 1..1 or 0..0 */ + w.s.high = + uu.s.high >> 31; + w.s.low = uu.s.high >> -bm; + } else { + const unsigned int carries = (unsigned int) uu.s.high << bm; + + w.s.high = uu.s.high >> b; + w.s.low = ((unsigned int) uu.s.low >> b) | carries; + } + + return w.ll; +} + +EXPORT_SYMBOL(__ashrdi3); -- cgit v1.2.3