diff options
| -rw-r--r-- | arch/mips/lib/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/lib/cmpdi2.c | 27 |
2 files changed, 28 insertions, 1 deletions
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile index 91ed1eb33102..8810dfb915dd 100644 --- a/arch/mips/lib/Makefile +++ b/arch/mips/lib/Makefile @@ -28,4 +28,4 @@ obj-$(CONFIG_CPU_TX49XX) += dump_tlb.o obj-$(CONFIG_CPU_VR41XX) += dump_tlb.o # libgcc-style stuff needed in the kernel -obj-y += ashldi3.o ashrdi3.o lshrdi3.o ucmpdi2.o +obj-y += ashldi3.o ashrdi3.o cmpdi2.o lshrdi3.o ucmpdi2.o diff --git a/arch/mips/lib/cmpdi2.c b/arch/mips/lib/cmpdi2.c new file mode 100644 index 000000000000..8c1306437ed1 --- /dev/null +++ b/arch/mips/lib/cmpdi2.c @@ -0,0 +1,27 @@ +#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); |