microblaze: Add __ucmpdi2() helper function (c8ae8a82) · Commits · 戴 / test

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>

arch/microblaze/lib/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -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

arch/microblaze/lib/ucmpdi2.c

0 → 100644

+20 −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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