Re: [PATCH -perfbook] count: Adjust index marker of _Thread_local

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On Wed, Aug 24, 2022 at 07:22:38AM -0400, Elad Lahav wrote:
> Ah, yes, I was wondering what apig was. Now I get it.
> Thanks, Akira.
> 
> --Elad
> 
> On Tue, 23 Aug 2022 at 22:43, Akira Yokosawa <akiyks@xxxxxxxxx> wrote:
> >
> > \apic{} is there for ISO C std APIs.  Use it.
> >
> > While we are here, fix a couple of minor nits:
> >    - align //\lnlbl{var:b} in count_end.c;
> >    - not line-break in front of \footnote{}, indent footnote text.
> >
> > Signed-off-by: Akira Yokosawa <akiyks@xxxxxxxxx>
> > Fixes: 24e8f711d2cf ("count: Switch from GCC to C11 thread-local storage")
> > Cc: Elad Lahav <e2lahav@xxxxxxxxx>

Queued and pushed, thank you both!

Just to set expectations, I anticipate taking GCC-to-C11 changes on a
case-by-case basis.  This one was a no-brainer, which is good, but I am
here to tell you that there are times when the old-school GCC extensions
don't always make it through the standardization process in one piece.  ;-)

							Thanx, Paul

> > ---
> >  CodeSamples/count/count_end.c |  2 +-
> >  count/count.tex               | 12 ++++++------
> >  2 files changed, 7 insertions(+), 7 deletions(-)
> >
> > diff --git a/CodeSamples/count/count_end.c b/CodeSamples/count/count_end.c
> > index 5e7b9ee1025c..b6ed851c35a9 100644
> > --- a/CodeSamples/count/count_end.c
> > +++ b/CodeSamples/count/count_end.c
> > @@ -23,7 +23,7 @@
> >  #include "../api.h"
> >
> >  //\begin{snippet}[labelbase=ln:count:count_end:whole,commandchars=\\\@\$]
> > -unsigned long _Thread_local counter = 0;               //\lnlbl{var:b}
> > +unsigned long _Thread_local counter = 0;       //\lnlbl{var:b}
> >  unsigned long *counterp[NR_THREADS] = { NULL };
> >  unsigned long finalcount = 0;
> >  DEFINE_SPINLOCK(final_mutex);                  //\lnlbl{var:e}
> > diff --git a/count/count.tex b/count/count.tex
> > index 775cf77e90a8..b2de4646b18f 100644
> > --- a/count/count.tex
> > +++ b/count/count.tex
> > @@ -721,12 +721,12 @@ This is the topic of the next section.
> >  \subsection{Per-Thread-Variable-Based Implementation}
> >  \label{sec:count:Per-Thread-Variable-Based Implementation}
> >
> > -The C language, since C11, features a \apig{_Thread_local} storage class that
> > -provides per-thread storage.
> > -\footnote{\GCC\ provides its own \apig{__thread} storage class, which was used
> > -in previous versions of this book.
> > -The two methods for specifying a thread-local variable are interchangeable
> > -when using \GCC\@.}
> > +The C language, since C11, features a \apic{_Thread_local} storage class that
> > +provides per-thread storage.\footnote{
> > +       \GCC\ provides its own \apig{__thread} storage class, which was used
> > +       in previous versions of this book.
> > +       The two methods for specifying a thread-local variable are
> > +       interchangeable when using \GCC\@.}
> >  This can be used as shown in
> >  \cref{lst:count:Per-Thread Statistical Counters} (\path{count_end.c})
> >  to implement
> >
> > base-commit: ba01403b34de88d3060e119f899f5eb053c5f162
> > --
> > 2.25.1
> >



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