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microblaze: Add __ucmpdi2() helper function

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Add missing __ucmpdi2 helper function.

Error log:
kernel/built-in.o: In function `print_graph_duration':
: undefined reference to `__ucmpdi2'
kernel/built-in.o: In function `print_graph_duration':
: undefined reference to `__ucmpdi2'

Based on MIPS code.

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2011-09-23 08:46:24 +02:00
parent 15ec090833
commit c8ae8a8208
2 changed files with 21 additions and 0 deletions
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1
arch/microblaze/lib/Makefile
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@ -25,5 +25,6 @@ lib-y += lshrdi3.o
lib-y += modsi3.o
lib-y += muldi3.o
lib-y += mulsi3.o
lib-y += ucmpdi2.o
lib-y += udivsi3.o
lib-y += umodsi3.o

20
arch/microblaze/lib/ucmpdi2.c Normal file
View File

@ -0,0 +1,20 @@
#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);