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| author | Sam Ravnborg <sam@ravnborg.org> | 2012-05-19 11:54:11 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-20 00:23:57 +0200 |
| commit | de36e66d5fa52bc6e2dacd95c701a1762b5308a7 (patch) | |
| tree | 16e54025bff0b92422728b8a8604dd6f2d173bac | |
| parent | sparc: introduce arch/sparc/Kbuild (diff) | |
| download | linux-de36e66d5fa52bc6e2dacd95c701a1762b5308a7.tar.xz linux-de36e66d5fa52bc6e2dacd95c701a1762b5308a7.zip | |
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: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc/lib/Makefile | 2 | ||||
| -rw-r--r-- | arch/sparc/lib/ucmpdi2.c | 19 |
2 files changed, 20 insertions, 1 deletions
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile index ead6df25054c..245bccfbe7e6 100644 --- a/arch/sparc/lib/Makefile +++ b/arch/sparc/lib/Makefile @@ -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 diff --git a/arch/sparc/lib/ucmpdi2.c b/arch/sparc/lib/ucmpdi2.c new file mode 100644 index 000000000000..1e06ed500682 --- /dev/null +++ b/arch/sparc/lib/ucmpdi2.c @@ -0,0 +1,19 @@ +#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); |