diff options
| author | Thiemo Seufer <ths@networkno.de> | 2007-05-01 19:14:16 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-05-11 14:28:30 +0100 |
| commit | df6b106bf01a17a157013245c2851dec4d7b5a2b (patch) | |
| tree | 4b0813e75569bdbbc6f89640d46fe8f400446008 /arch/mips/lib | |
| parent | 774583f8bcfbdc423e51cb8b924d8c6cea4afbac (diff) | |
[MIPS] Add __ucmpdi2 implementation
Recent GCC SVN versions may generate calls to __ucmpdi2.
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/lib')
| -rw-r--r-- | arch/mips/lib/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/lib/ucmpdi2.c | 19 |
2 files changed, 20 insertions, 1 deletions
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile index d7d3b14dcfb..5dad13efba7 100644 --- a/arch/mips/lib/Makefile +++ b/arch/mips/lib/Makefile @@ -9,4 +9,4 @@ obj-y += iomap.o obj-$(CONFIG_PCI) += iomap-pci.o # libgcc-style stuff needed in the kernel -lib-y += ashldi3.o ashrdi3.o lshrdi3.o +lib-y += ashldi3.o ashrdi3.o lshrdi3.o ucmpdi2.o diff --git a/arch/mips/lib/ucmpdi2.c b/arch/mips/lib/ucmpdi2.c new file mode 100644 index 00000000000..e9ff258ef02 --- /dev/null +++ b/arch/mips/lib/ucmpdi2.c @@ -0,0 +1,19 @@ +#include <linux/module.h> + +#include "libgcc.h" + +word_type __ucmpdi2 (unsigned long a, unsigned 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; +} |