diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 3a7a245..f4c2506 100644 --- a/configure.ac +++ b/configure.ac @@ -981,6 +981,29 @@ if test "x${je_cv_function_ffsl}" != "xyes" ; then fi dnl ============================================================================ +dnl Check for atomic(9) operations as provided on FreeBSD. + +JE_COMPILABLE([atomic(9)], [ +#include <sys/types.h> +#include <machine/atomic.h> +#include <inttypes.h> +], [ + { + uint32_t x32 = 0; + volatile uint32_t *x32p = &x32; + atomic_fetchadd_32(x32p, 1); + } + { + unsigned long xlong = 0; + volatile unsigned long *xlongp = &xlong; + atomic_fetchadd_long(xlongp, 1); + } +], [je_cv_atomic9]) +if test "x${je_cv_atomic9}" = "xyes" ; then + AC_DEFINE([JEMALLOC_ATOMIC9]) +fi + +dnl ============================================================================ dnl Check for atomic(3) operations as provided on Darwin. JE_COMPILABLE([Darwin OSAtomic*()], [ @@ -1031,7 +1054,7 @@ AC_DEFUN([JE_SYNC_COMPARE_AND_SWAP_CHECK],[ fi ]) -if test "x${je_cv_osatomic}" != "xyes" ; then +if test "x${je_cv_atomic9}" != "xyes" -a "x${je_cv_osatomic}" != "xyes" ; then JE_SYNC_COMPARE_AND_SWAP_CHECK(32, 4) JE_SYNC_COMPARE_AND_SWAP_CHECK(64, 8) fi |