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| author | Michal Simek <monstr@monstr.eu> | 2011-09-23 08:46:24 +0200 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2011-10-14 12:24:32 +0200 |
| commit | c8ae8a820880cf8bf3588752ac0ded6d4d218d50 (patch) | |
| tree | 0a23e63968ccaeb4bd4bed523dc5cc7be48ed812 /arch/microblaze/lib/ucmpdi2.c | |
| parent | microblaze: Raise SIGFPE/FPE_INTDIV for div by zero (diff) | |
| download | linux-c8ae8a820880cf8bf3588752ac0ded6d4d218d50.tar.xz linux-c8ae8a820880cf8bf3588752ac0ded6d4d218d50.zip | |
microblaze: Add __ucmpdi2() helper function
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>
Diffstat (limited to 'arch/microblaze/lib/ucmpdi2.c')
| -rw-r--r-- | arch/microblaze/lib/ucmpdi2.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/microblaze/lib/ucmpdi2.c b/arch/microblaze/lib/ucmpdi2.c new file mode 100644 index 000000000000..63ca105b6713 --- /dev/null +++ b/arch/microblaze/lib/ucmpdi2.c @@ -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); |