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Commit 2704afeb authored by Ralf Baechle's avatar Ralf Baechle
Browse files

[MIPS] Add __cmpdi2 



Certain 32-bit kernel configurations seem to be able to cause references,
this was observed with gcc 4.1.2.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 606bf782

arch/mips/lib/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -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

arch/mips/lib/cmpdi2.c

0 → 100644
+27 −0
Original line number Diff line number Diff line 
#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);