diff options
Diffstat (limited to 'sql/mysqld.cc')
| -rw-r--r-- | sql/mysqld.cc | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/sql/mysqld.cc b/sql/mysqld.cc index f43bc9ea1a6..ad3521e5dde 100644 --- a/sql/mysqld.cc +++ b/sql/mysqld.cc @@ -186,39 +186,41 @@ int initgroups(const char *,unsigned int); #ifdef HAVE_FP_EXCEPT // Fix type conflict typedef fp_except fp_except_t; #endif +#endif /* __FreeBSD__ && HAVE_IEEEFP_H */ +#ifdef HAVE_SYS_FPU_H +/* for IRIX to use set_fpc_csr() */ +#include <sys/fpu.h> +#endif +inline void setup_fpu() +{ +#if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H) /* We can't handle floating point exceptions with threads, so disable this on freebsd + Don't fall for overflow, underflow,divide-by-zero or loss of precision */ - -inline void set_proper_floating_point_mode() -{ - /* Don't fall for overflow, underflow,divide-by-zero or loss of precision */ #if defined(__i386__) fpsetmask(~(FP_X_INV | FP_X_DNML | FP_X_OFL | FP_X_UFL | FP_X_DZ | FP_X_IMP)); #else - fpsetmask(~(FP_X_INV | FP_X_OFL | FP_X_UFL | FP_X_DZ | - FP_X_IMP)); -#endif -} -#elif defined(__sgi) -/* for IRIX to use set_fpc_csr() */ -#include <sys/fpu.h> + fpsetmask(~(FP_X_INV | FP_X_OFL | FP_X_UFL | FP_X_DZ | + FP_X_IMP)); +#endif /* __i386__ */ +#endif /* __FreeBSD__ && HAVE_IEEEFP_H */ -inline void set_proper_floating_point_mode() -{ +#ifdef HAVE_FESETROUND + /* Set FPU rounding mode to "round-to-nearest" */ + fesetround(FE_TONEAREST); +#endif /* HAVE_FESETROUND */ + +#if defined(__sgi) && defined(HAVE_SYS_FPU_H) /* Enable denormalized DOUBLE values support for IRIX */ - { - union fpc_csr n; - n.fc_word = get_fpc_csr(); - n.fc_struct.flush = 0; - set_fpc_csr(n.fc_word); - } + union fpc_csr n; + n.fc_word = get_fpc_csr(); + n.fc_struct.flush = 0; + set_fpc_csr(n.fc_word); +#endif } -#else -#define set_proper_floating_point_mode() -#endif /* __FreeBSD__ && HAVE_IEEEFP_H */ } /* cplusplus */ @@ -3279,7 +3281,7 @@ static int init_server_components() query_cache_init(); query_cache_resize(query_cache_size); randominit(&sql_rand,(ulong) server_start_time,(ulong) server_start_time/2); - set_proper_floating_point_mode(); + setup_fpu(); init_thr_lock(); #ifdef HAVE_REPLICATION init_slave_list(); |