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[perl #20609] MY_CXT macros and modules with multiple object files

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James E Keenan via RT
January 19, 2012 19:06
[perl #20609] MY_CXT macros and modules with multiple object files
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On Wed Jan 29 11:14:24 2003, salva wrote:
> This is a bug report for perl from,
> generated with the help of perlbug 1.34 running under perl
> v5.8.0.

> The MY_CXT family of macros to add local thread storage
> to modules are designed to be used from a single object
> (*.o) file.
> i.e., imagine an extension module with two files file1.xs
> and file2.xs, and that both modules need to access MY_CXT.
> When the extension is compiled in a non-threaded perl,
> MY_CXT gets defined as my_cxt, and my_cxt is
>   "static my_cxt_t *my_cxt"
> in file1.xs and so as it is "static" it is not accessible
> from file2.c
> To correct it, my_cxt should not be defined as static
> anymore and a new macro has to be added to declare it
> in other objects.

This post has not received a response since it was filed almost nine
years ago.  grepping the source code suggests that the only module in
the core distribution which *might* qualify as having multiple .xs files
is Dynaloader.

Is there an XS-expert who could evaluate the poster's argument?

Thank you very much.
Jim Keenan

via perlbug:  queue: perl5 status: new

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