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MAN page from OpenSuSE 13.X perl-ExtUtils-ParseXS-3.30-9.1.x86_64.rpm

XSUBPP

Section: User Contributed Perl Documentation (1)
Updated: 2013-08-29
Index 

NAME

xsubpp - compiler to convert Perl XS code into C code 

SYNOPSIS

xsubpp [-v] [-except] [-s pattern] [-prototypes] [-noversioncheck] [-nolinenumbers] [-nooptimize] [-typemap typemap] [-output filename]... file.xs 

DESCRIPTION

This compiler is typically run by the makefiles created by ExtUtils::MakeMakeror by Module::Build or other Perl module build tools.

xsubpp will compile XS code into C code by embedding the constructsnecessary to let C functions manipulate Perl values and creates the gluenecessary to let Perl access those functions. The compiler uses typemaps todetermine how to map C function parameters and variables to Perl values.

The compiler will search for typemap files called typemap. It will usethe following search path to find default typemaps, with the rightmosttypemap taking precedence.

        ../../../typemap:../../typemap:../typemap:typemap

It will also use a default typemap installed as "ExtUtils::typemap". 

OPTIONS

Note that the "XSOPT" MakeMaker option may be used to add these options toany makefiles generated by MakeMaker.
-hiertype
Retains '::' in type names so that C++ hierarchical types can be mapped.
-except
Adds exception handling stubs to the C code.
-typemap typemap
Indicates that a user-supplied typemap should take precedence over thedefault typemaps. This option may be used multiple times, with the lasttypemap having the highest precedence.
-output filename
Specifies the name of the output file to generate. If no file isspecified, output will be written to standard output.
-v
Prints the xsubpp version number to standard output, then exits.
-prototypes
By default xsubpp will not automatically generate prototype code forall xsubs. This flag will enable prototypes.
-noversioncheck
Disables the run time test that determines if the object file (derivedfrom the ".xs" file) and the ".pm" files have the same versionnumber.
-nolinenumbers
Prevents the inclusion of '#line' directives in the output.
-nooptimize
Disables certain optimizations. The only optimization that is currentlyaffected is the use of targets by the output C code (see perlguts).This may significantly slow down the generated code, but this is the wayxsubpp of 5.005 and earlier operated.
-noinout
Disable recognition of "IN", "OUT_LIST" and "INOUT_LIST" declarations.
-noargtypes
Disable recognition of ANSI-like descriptions of function signature.
-C++
Currently doesn't do anything at all. This flag has been a no-op formany versions of perl, at least as far back as perl5.003_07. It'sallowed here for backwards compatibility.
-s=... or -strip=...
This option is obscure and discouraged.

If specified, the given string will be stripped off from the beginningof the C function name in the generated XS functions (if it starts with that prefix).This only applies to XSUBs without "CODE" or "PPCODE" blocks.For example, the XS:

  void foo_bar(int i);

when "xsubpp" is invoked with "-s foo_" will install a "foo_bar"function in Perl, but really call bar(i) in C. Most of the time,this is the opposite of what you want and failure modes are somewhatobscure, so please avoid this option where possible.

 

ENVIRONMENT

No environment variables are used. 

AUTHOR

Originally by Larry Wall. Turned into the "ExtUtils::ParseXS" moduleby Ken Williams. 

MODIFICATION HISTORY

See the file Changes. 

SEE ALSO

perl(1), perlxs(1), perlxstut(1), ExtUtils::ParseXS


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
ENVIRONMENT
AUTHOR
MODIFICATION HISTORY
SEE ALSO

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