Reini Urban > B-C-1.42 > perlcc

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NAME ^

perlcc - generate executables from Perl programs

SYNOPSIS ^

    perlcc hello              # Compiles into executable 'a.out'
    perlcc -o hello hello.pl  # Compiles into executable 'hello'

    perlcc -O file            # Compiles using the optimised CC backend
    perlcc -Wb=-O2 file       # Compiles with C, using -O2 optimizations
    perlcc -B file            # Compiles using the bytecode backend
    perlcc -B -m file.pm      # Compiles a module to file.pmc

    perlcc -c file            # Creates a C file, 'file.c'
    perlcc -S -o hello file   # Creates a C file, 'file.c',
                              # then compiles it to executable 'hello'
    perlcc -c out.c file      # Creates a C file, 'out.c' from 'file'
    perlcc --staticxs -r -o hello hello.pl # Compiles,links and runs with
                              # XS modules static/dynaloaded

    perlcc -e 'print q//'     # Compiles a one-liner into 'a.out'
    perlcc -c -e 'print q//'  # Creates a C file 'a.out.c'

    perlcc -I /foo hello      # extra headers (notice the space after -I)
    perlcc -L /foo hello      # extra libraries (notice the space after -L)

    perlcc -r hello           # compiles 'hello' into 'a.out', runs 'a.out'.
    perlcc -r hello a b c     # compiles 'hello' into 'a.out', runs 'a.out'.
                              # with arguments 'a b c'

    perlcc hello -log c.log   # compiles 'hello' into 'a.out' logs compile
                              # log into 'c.log'.

    perlcc -h                 # help, only SYNOPSIS
    perlcc -v 2 -h            # verbose help, also DESCRIPTION and OPTIONS

DESCRIPTION ^

perlcc creates standalone executables from Perl programs, using the code generators provided by the B module. At present, you may either create executable Perl bytecode, using the -B option, or generate and compile C files using the standard and 'optimised' C backends.

The code generated in this way is not guaranteed to work. The whole codegen suite (perlcc included) should be considered very experimental. Use for production purposes is strongly discouraged.

OPTIONS ^

-LC library directories

Adds the given directories to the library search path when C code is passed to your C compiler.

-IC include directories

Adds the given directories to the include file search path when C code is passed to your C compiler; when using the Perl bytecode option, adds the given directories to Perl's include path.

-o output file name

Specifies the file name for the final compiled executable.

-c C file name

Create C code only; do not compile to a standalone binary.

-e perl code

Compile a one-liner, much the same as perl -e '...'

-S

"Keep source". Do not delete generated C code after compilation.

-B

Use the Perl bytecode code generator.

-O

Use the 'optimised' C code generator B::CC. This is more experimental than everything else put together, and the code created is not guaranteed to compile in finite time and memory, or indeed, at all.

-O1-4

Pass the numeric optimisation option to the compiler backend. Shortcut for -Wb=-On.

This does not enforce B::CC.

-v 0-6

Set verbosity of output from 0 to max. 6.

-r

Run the resulting compiled script after compiling it.

--log logfile

Log the output of compiling to a file rather than to stdout.

--Wb=options

Pass the options to the compiler backend, such as --Wb=-O2,-v

--Wc=options

Pass comma-seperated options to cc.

--Wl=options

Pass comma-seperated options to ld.

-T or -t

run the backend using perl -T or -t

-u package

Add package(s) to compiler and force linking to it.

-U package

Skip package(s). Do not compile and link.

--stash

Detect external packages automatically via B::Stash

--static

Link to static libperl.a

--staticxs

Link to static XS if available. If the XS libs are only available as shared libs link to those ("prelink").

Systems without rpath (windows, cygwin) must be extend LD_LIBRARY_PATH/PATH at run-time. Together with -static, purely static modules and no run-time eval or require this will gain no external dependencies.

--shared

Link to shared libperl

--sharedxs

Link shared XSUBs if the linker supports it. No DynaLoader needed. This will still require the shared XSUB libraries to be installed at the client, modification of @INC in the source is probably required. (Not yet implemented)

-m|--sharedlib [Modulename]

Create a module, resp. a shared library. Currently only enabled for Bytecode and CC. (not yet tested)

--testsuite
  perlcc -r --testsuite t/harness
--time

Benchmark the different phases c (B::* compilation), cc (cc compile + link), and r (runtime).

--no-spawn

Do not spawn subprocesses for compilation, because broken shells might not be able to kill its children.

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