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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2009-11-28 01:33:49 +0300 |
|---|---|---|
| committer | Frank Ch. Eigler <fche@elastic.org> | 2009-12-01 11:57:33 -0500 |
| commit | b7c4fdcf0991791bf13b144c72767ff6b98cff53 (patch) | |
| tree | 23feb8418017f9d95bac8ece16e7645cc3291e5c /runtime | |
| parent | fb4653ea565018aa26a730db6b59ff64f2c6afa8 (diff) | |
| download | systemtap-steved-b7c4fdcf0991791bf13b144c72767ff6b98cff53.tar.gz systemtap-steved-b7c4fdcf0991791bf13b144c72767ff6b98cff53.tar.xz systemtap-steved-b7c4fdcf0991791bf13b144c72767ff6b98cff53.zip | |
Implement _div64 and _mod64 for ppc32
_div64 and _mod64 arch-specific details were taken from gcc/longlong.h,
just as it was done for i386.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/arith.c | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/runtime/arith.c b/runtime/arith.c index 4c818a76..a032e9c1 100644 --- a/runtime/arith.c +++ b/runtime/arith.c @@ -20,7 +20,8 @@ /* 64-bit division for 64-bit cpus and i386 */ /* Other 32-bit cpus will need to modify this file. */ -#if defined (__i386__) || defined(__arm__) +#if defined (__i386__) || defined(__arm__) || \ + (defined(__powerpc__) && !defined(__powerpc64__)) static long long _div64 (long long u, long long v); static long long _mod64 (long long u, long long v); #endif @@ -114,7 +115,8 @@ static int _stp_random_pm (unsigned n) -#if defined (__i386__) || defined (__arm__) +#if defined (__i386__) || defined (__arm__) || \ + (defined(__powerpc__) && !defined(__powerpc64__)) /* 64-bit division functions extracted from libgcc */ typedef long long DWtype; @@ -181,6 +183,40 @@ typedef union (count) = __cbtmp ^ 31; \ } while (0) +#elif defined (__powerpc__) +/* these are the ppc versions of these macros from gcc/longlong.h */ + +#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ + do { \ + if (__builtin_constant_p (ah) && (ah) == 0) \ + __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \ + : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\ + else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0) \ + __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \ + : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\ + else if (__builtin_constant_p (bh) && (bh) == 0) \ + __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \ + : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\ + else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \ + __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \ + : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\ + else \ + __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \ + : "=r" (sh), "=&r" (sl) \ + : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \ + } while (0) + +#define count_leading_zeros(count, x) \ + __asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x)) +#define COUNT_LEADING_ZEROS_0 32 + +#define umul_ppmm(ph, pl, m0, m1) \ + do { \ + USItype __m0 = (m0), __m1 = (m1); \ + __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \ + (pl) = __m0 * __m1; \ + } while (0) + #elif defined (__arm__) #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ @@ -548,6 +584,6 @@ static long long _mod64 (long long u, long long v) return w; } -#endif /* __i386__ || __arm__ */ +#endif /* __i386__ || __arm__ || (__powerpc__ && !__powerpc64__) */ #endif /* _ARITH_C_ */ |