B::C
The C backend for the Perl compiler. Generates C source code from Perl source; the generated code corresponds to Perl’s internal structures for running the program. Compiling with the C backend won’t speed up execution of your program, but it may improve start-up time. Invoke as:
perl -MO=C[,options]program
in which program is the name of the
Perl script to compile. Any non-option arguments are treated as the
names of objects to be saved; the main program is assumed if there are
no extra arguments. Possible options are:
- --
Forces end of options.
- -Dopts
Debug options, which can be concatenated or specified separately. Possible options are:
APrints AV information on saving
cPrints COPs as they are processed, including file and line number
CPrints CV information on saving
MPrints MAGIC information on saving
oPrints each OP as it’s processed
- -fopt
Forces individual optimizations on or off. Possible values of opt are:
cogCopy-on-grow. PVs are declared and initialized statically.
no-cogNo copy-on-grow.
- -ofilename
Sends output to filename instead of to STDOUT.
- -O[
n] Sets optimization level, in which
nis an integer.ndefaults to1. Currently, values of1and higher setcog.- -uPackname
Forces apparently unused subroutines from package Packname to be compiled, letting programs use
eval "foo( )"even if subroutinefooisn’t seen to be used at compile time. You can specify multiple -u options.- -v
Compiles verbosely.