diff options
Diffstat (limited to 'libgomp/configure.ac')
| -rw-r--r-- | libgomp/configure.ac | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libgomp/configure.ac b/libgomp/configure.ac index 4ee96e2b3dd..427c8f7c753 100644 --- a/libgomp/configure.ac +++ b/libgomp/configure.ac @@ -236,6 +236,25 @@ If so, please configure with --disable-linux-futex]) ;; esac +# Check for pthread_{,attr_}[sg]etaffinity_np. +AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [#define _GNU_SOURCE + #include <pthread.h>], + [cpu_set_t cpuset; + pthread_attr_t attr; + pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset); + if (CPU_ISSET (0, &cpuset)) + CPU_SET (1, &cpuset); + else + CPU_ZERO (&cpuset); + pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset); + pthread_attr_init (&attr); + pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset); + pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])], + AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1, +[ Define if pthread_{,attr_}{g,s}etaffinity_np is supported.])) + # At least for glibc, clock_gettime is in librt. But don't pull that # in if it still doesn't give us the function we want. if test $ac_cv_func_clock_gettime = no; then |