Commit de36e66d authored by Sam Ravnborg's avatar Sam Ravnborg Committed by David S. Miller
Browse files

sparc32: add ucmpdi2 



Based on copy from microblaze add ucmpdi2 implementation.
This fixes build of niu driver which failed with:

drivers/built-in.o: In function `niu_get_nfc':
niu.c:(.text+0x91494): undefined reference to `__ucmpdi2'

This driver will never be used on a sparc32 system,
but patch added to fix build breakage with all*config builds.

Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e1d7de83

arch/sparc/lib/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -15,7 +15,7 @@ lib-$(CONFIG_SPARC32) += divdi3.o udivdi3.o 
lib-$(CONFIG_SPARC32) += copy_user.o locks.o

lib-$(CONFIG_SPARC64) += atomic_64.o

lib-$(CONFIG_SPARC32) += lshrdi3.o ashldi3.o

lib-$(CONFIG_SPARC32) += muldi3.o bitext.o cmpdi2.o

lib-$(CONFIG_SPARC32) += muldi3.o bitext.o cmpdi2.o ucmpdi2.o



lib-$(CONFIG_SPARC64) += copy_page.o clear_page.o bzero.o

lib-$(CONFIG_SPARC64) += csum_copy.o csum_copy_from_user.o csum_copy_to_user.o

arch/sparc/lib/ucmpdi2.c

0 → 100644
+19 −0
Original line number Diff line number Diff line 
#include <linux/module.h>

#include "libgcc.h"



word_type __ucmpdi2(unsigned long long a, unsigned long long b)

{

	const DWunion au = {.ll = a};

	const DWunion bu = {.ll = b};



	if ((unsigned int) au.s.high < (unsigned int) bu.s.high)

		return 0;

	else if ((unsigned int) au.s.high > (unsigned int) 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(__ucmpdi2);

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