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| author | Gwenolé Beauchesne <gbeauchesne@mandriva.org> | 2002-11-05 15:52:22 +0000 |
|---|---|---|
| committer | Gwenolé Beauchesne <gbeauchesne@mandriva.org> | 2002-11-05 15:52:22 +0000 |
| commit | 050796374b29c330ec800798a08336e8066bdd6f (patch) | |
| tree | 646e8b46c5ce27f29e837714e1420b13183d8e68 | |
| parent | 87600c03a38ec57e136b27903c14f1f0a80f9b88 (diff) | |
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Add generic cpu detection on x86-64 and IA-64, based on
sysconf(_SC_NPROCESSORS_ONLN)
| -rw-r--r-- | perl-install/c/smp.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/perl-install/c/smp.c b/perl-install/c/smp.c index baf786cc6..3255ce9c4 100644 --- a/perl-install/c/smp.c +++ b/perl-install/c/smp.c @@ -473,6 +473,17 @@ readEntry( void* entry, int size ) #endif /* __i386__ */ +static int sysconfDetectSMP(void) +{ + long nprocs; + + /* Error: assume we are *not* SMP. */ + if ((nprocs = sysconf(_SC_NPROCESSORS_ONLN)) < 0) + nprocs = 1; + + return nprocs > 1; +} + int detectSMP(void) { static int isSMP = -1; @@ -488,12 +499,9 @@ int detectSMP(void) return isSMP = alphaDetectSMP(); #elif __powerpc__ return isSMP = ppcDetectSMP(); -#elif __ia64__ - /* TODO: Update to check against /proc/pal/cpuX */ - return isSMP = 1; -#elif __x86_64__ - /* TODO: Update when SMP machines are there */ - return isSMP = 0; +#elif defined(__ia64__) || defined(__x86_64__) + /* TODO: IA-64, maybe check against /proc/pal/cpuX ? */ + return isSMP = sysconfDetectSMP(); #else #error unknown architecture #endif |