diff options
author | Michal Simek <monstr@monstr.eu> | 2011-11-29 16:05:30 +0400 |
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committer | Michal Simek <monstr@monstr.eu> | 2012-01-05 11:22:01 +0400 |
commit | eecb20720f1b29019725515051e41bc7c079f91f (patch) | |
tree | dc036d11be79fa80b312aa716fc5a396e174efda /arch/microblaze/lib | |
parent | ed705633d3aba5ff442ca5b7a02bf19edfa811b5 (diff) | |
download | linux-eecb20720f1b29019725515051e41bc7c079f91f.tar.xz |
microblaze: Add __cmpdi2
Some new kernel configurations require __cmpdi2 function.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/lib')
-rw-r--r-- | arch/microblaze/lib/Makefile | 1 | ||||
-rw-r--r-- | arch/microblaze/lib/cmpdi2.c | 26 |
2 files changed, 27 insertions, 0 deletions
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile index c13067b243c3..844960e8ae18 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 000000000000..a708400ea7b7 --- /dev/null +++ b/arch/microblaze/lib/cmpdi2.c @@ -0,0 +1,26 @@ +#include <linux/module.h> + +#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); |