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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-07-01 07:29:19 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-07-01 07:29:32 -0700 |
| commit | 8dc6133eff1c09382bc8f6f98c49fb807900eecd (patch) | |
| tree | 3ca0c6660b09b6fdd51e2a45af626d8bd49019ee /ChangeLog | |
| parent | 47ea614b9afcdaef80e09d58afcdad4f96ba3f15 (diff) | |
| download | glibc-8dc6133eff1c09382bc8f6f98c49fb807900eecd.tar glibc-8dc6133eff1c09382bc8f6f98c49fb807900eecd.tar.gz glibc-8dc6133eff1c09382bc8f6f98c49fb807900eecd.tar.bz2 glibc-8dc6133eff1c09382bc8f6f98c49fb807900eecd.zip | |
Use __builtin_popcount in __sched_cpucount [BZ #21696]
posix/sched_cpucount.c assumes that size of __cpu_mask == size of long,
which is incorrect for x32. This patch uses __builtin_popcount, which
is availabe in GCC 4.9, in posix/sched_cpucount.c.
Tested on i686, x86-64 and x32 with multi-arch disabled.
[BZ #21696]
* posix/sched_cpucount.c: Don't include <limits.h>.
(__sched_cpucount): Use __builtin_popcount.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -1,3 +1,10 @@ +2017-07-01 Florian Weimer <fweimer@redhat.com> + H.J. Lu <hongjiu.lu@intel.com> + + [BZ #21696] + * posix/sched_cpucount.c: Don't include <limits.h>. + (__sched_cpucount): Use __builtin_popcount. + 2017-07-01 Ramana Radhakrishnan <ramana.gcc@googlemail.com> * sysdeps/unix/sysv/aarch64/cpu-features.c (init_cpu_features): |