From eecb20720f1b29019725515051e41bc7c079f91f Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 29 Nov 2011 13:05:30 +0100 Subject: [PATCH] microblaze: Add __cmpdi2 Some new kernel configurations require __cmpdi2 function. Signed-off-by: Michal Simek --- arch/microblaze/lib/Makefile | 1 + arch/microblaze/lib/cmpdi2.c | 26 ++++++++++++++++++++++++++ 2 files changed, 27 insertions(+) create mode 100644 arch/microblaze/lib/cmpdi2.c diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile index c13067b243c..844960e8ae1 100644 --- a/arch/microblaze/lib/Makefile +++ b/arch/microblaze/lib/Makefile @@ -20,6 +20,7 @@ lib-y += uaccess_old.o lib-y += ashldi3.o lib-y += ashrdi3.o +lib-y += cmpdi2.o lib-y += divsi3.o lib-y += lshrdi3.o lib-y += modsi3.o diff --git a/arch/microblaze/lib/cmpdi2.c b/arch/microblaze/lib/cmpdi2.c new file mode 100644 index 00000000000..a708400ea7b --- /dev/null +++ b/arch/microblaze/lib/cmpdi2.c @@ -0,0 +1,26 @@ +#include + +#include "libgcc.h" + +word_type __cmpdi2(long long a, long long b) +{ + const DWunion au = { + .ll = a + }; + const DWunion bu = { + .ll = b + }; + + if (au.s.high < bu.s.high) + return 0; + else if (au.s.high > bu.s.high) + return 2; + + if ((unsigned int) au.s.low < (unsigned int) bu.s.low) + return 0; + else if ((unsigned int) au.s.low > (unsigned int) bu.s.low) + return 2; + + return 1; +} +EXPORT_SYMBOL(__cmpdi2);