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| author | Kevin Ryde <user42@zip.com.au> | 2002-03-23 21:55:53 +0100 |
|---|---|---|
| committer | Kevin Ryde <user42@zip.com.au> | 2002-03-23 21:55:53 +0100 |
| commit | af4131a1cc0b155716130fe50ad8c95846afcb42 (patch) | |
| tree | 4d2c291d06b5b1c6b0b3854c9a1b6dfe1f8f41a4 /tune/time.c | |
| parent | 2292bcdec6575b1c90db59f3174bb4d382b1e1af (diff) | |
| download | gmp-af4131a1cc0b155716130fe50ad8c95846afcb42.tar.gz | |
Avoid cray syssgi():
* tune/time.c: Add SGI hardware counter measuring method
Diffstat (limited to 'tune/time.c')
| -rw-r--r-- | tune/time.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tune/time.c b/tune/time.c index 6f93adc21..7c0842ca2 100644 --- a/tune/time.c +++ b/tune/time.c @@ -225,7 +225,8 @@ typedef unsigned long stck_t; /* dummy */ #endif #define STCK_PERIOD (1.0 / 4096e6) /* 2^-12 microseconds */ -#if HAVE_SYSSGI +/* Cray vector systems have syssgi(), but not mmap(). */ +#if HAVE_SYSSGI && HAVE_MMAP static const int have_sgi = 1; #else static const int have_sgi = 0; @@ -625,7 +626,7 @@ volatile unsigned *sgi_addr; int sgi_works_p (void) { -#if HAVE_SYSSGI +#if HAVE_SYSSGI && HAVE_MMAP static int result = -1; size_t pagesize, offset; @@ -702,7 +703,7 @@ sgi_works_p (void) result = 1; return result; -#else /* ! HAVE_SYSSGI */ +#else /* ! (HAVE_SYSSGI && HAVE_MMAP) */ return 0; #endif } |