diff options
| -rw-r--r-- | configfrag.ac | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/configfrag.ac b/configfrag.ac index 290a1596..f9285c9d 100644 --- a/configfrag.ac +++ b/configfrag.ac @@ -99,7 +99,12 @@ AC_DEFINE([MACH_MP_DEBUG], [0], [MACH_MP_DEBUG]) AC_DEFINE([MACH_PAGEMAP], [1], [MACH_PAGEMAP]) # Do pc sample histogram. -AC_DEFINE([MACH_PCSAMPLE], [0], [MACH_PCSAMPLE]) +[if [ $mach_ncpus -gt 1 ]; then] + # Apparently not MP-safe yet. + AC_DEFINE([MACH_PCSAMPLE], [0], [MACH_PCSAMPLE]) +[else] + AC_DEFINE([MACH_PCSAMPLE], [1], [MACH_PCSAMPLE]) +[fi] # Sample kernel too. AC_ARG_ENABLE([kernsample], |