Hello Tobias, On 2/6/19 9:07 AM, Tobias Klauser wrote: > The glibc wrapper was added in glibc 2.29, release on 1 Feb 2019. > > Signed-off-by: Tobias Klauser <tklauser@xxxxxxxxxx> > --- > man2/getcpu.2 | 9 --------- > 1 file changed, 9 deletions(-) > > diff --git a/man2/getcpu.2 b/man2/getcpu.2 > index c66f3d4a139e..88f8cdb8eb73 100644 > --- a/man2/getcpu.2 > +++ b/man2/getcpu.2 > @@ -19,9 +19,6 @@ getcpu \- determine CPU and NUMA node on which the calling thread is running > .BI "int getcpu(unsigned *" cpu ", unsigned *" node \ > ", struct getcpu_cache *" tcache ); > .fi > -.PP > -.IR Note : > -There is no glibc wrapper for this system call; see NOTES. > .SH DESCRIPTION > The > .BR getcpu () > @@ -82,12 +79,6 @@ The intention of > is to allow programs to make optimizations with per-CPU data > or for NUMA optimization. > .PP > -Glibc does not provide a wrapper for this system call; call it using > -.BR syscall (2); > -or use > -.BR sched_getcpu (3) > -instead. > -.PP > The > .I tcache > argument is unused since Linux 2.6.24. Thanks. Patch applied, and I followed it up with the patch below. Cheers, Michael diff --git a/man2/getcpu.2 b/man2/getcpu.2 index 88f8cdb8e..c6e5bdbff 100644 --- a/man2/getcpu.2 +++ b/man2/getcpu.2 @@ -67,6 +67,10 @@ Arguments point outside the calling process's address space. .SH VERSIONS .BR getcpu () was added in kernel 2.6.19 for x86-64 and i386. +Library support was added in glibc 2.29 +(Earlier glibc versions did not provide a wrapper for this system call, +necessitating the use of +.BR syscall (2).) .SH CONFORMING TO .BR getcpu () is Linux-specific. -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
