my $options = {};
my $_fh;
+unshift @ARGV, split ' ', $ENV{PERLCC_OPTS} if $ENV{PERLCC_OPTS};
main();
"regex:s",
"verbose:s",
"log:s",
- "argv:s",
+ "argv:s",
+ "b",
+ "opt",
"gen",
"sav",
"run",
my ($file) = @_;
my ($program_ext, $module_ext) = _getRegexps();
- my ($obj, $objfile, $so, $type);
+ my ($obj, $objfile, $so, $type, $backend, $gentype);
+
+ $backend = $options->{'b'} ? 'Bytecode' : $options->{'opt'} ? 'CC' : 'C';
+
+ $gentype = $options->{'b'} ? 'Bytecode' : 'C';
if (
(($file =~ m"@$program_ext") && ($file !~ m"@$module_ext"))
|| (defined($options->{'prog'}) || defined($options->{'run'}))
)
{
- $objfile = ($options->{'C'}) ? $options->{'C'} : "$file.c";
$type = 'program';
- $obj = ($options->{'o'})? $options->{'o'} :
- _getExecutable( $file,$program_ext);
+ if ($options->{'b'})
+ {
+ $obj = $objfile = $options->{'o'} ? $options->{'o'} : "${file}c";
+ }
+ else
+ {
+ $objfile = $options->{'C'} ? $options->{'C'} : "$file.c";
+ $obj = $options->{'o'} ? $options->{'o'}
+ : _getExecutable( $file,$program_ext);
+ }
return() if (!$obj);
}
elsif (($file =~ m"@$module_ext") || ($options->{'mod'}))
{
- die "Shared objects are not supported on Win32 yet!!!!\n"
- if ($Config{'osname'} eq 'MSWin32');
+ $type = 'module';
+
+ if ($options->{'b'})
+ {
+ $obj = $objfile = $options->{'o'} ? $options->{'o'} : "${file}c";
+ }
+ else
+ {
+ die "Shared objects are not supported on Win32 yet!!!!\n"
+ if ($Config{'osname'} eq 'MSWin32');
+
+ $objfile = $options->{'C'} ? $options->{'C'} : "$file.c";
+ $obj = $options->{'o'} ? $options->{'o'}
+ : _getExecutable($file, $module_ext);
+ $so = "$obj.$Config{so}";
+ }
- $obj = ($options->{'o'})? $options->{'o'} :
- _getExecutable($file, $module_ext);
- $so = "$obj.$Config{so}";
- $type = 'sharedlib';
return() if (!$obj);
- $objfile = ($options->{'C'}) ? $options->{'C'} : "$file.c";
}
else
{
if ($type eq 'program')
{
- _print("Making C($objfile) for $file!\n", 36 );
+ _print("Making $gentype($objfile) for $file!\n", 36 );
- my $errcode = _createCode($objfile, $file);
+ my $errcode = _createCode($backend, $objfile, $file);
(_print( "ERROR: In generating code for $file!\n", -1), return())
if ($errcode);
- _print("Compiling C($obj) for $file!\n", 36 ) if (!$options->{'gen'});
+ _print("Compiling C($obj) for $file!\n", 36 ) if (!$options->{'gen'} &&
+ !$options->{'b'});
$errcode = _compileCode($file, $objfile, $obj)
- if (!$options->{'gen'});
+ if (!$options->{'gen'} &&
+ !$options->{'b'});
if ($errcode)
{
return()
}
- _runCode($obj) if ($options->{'run'});
+ _runCode($objfile) if ($options->{'run'} && $options->{'b'});
+ _runCode($obj) if ($options->{'run'} && !$options->{'b'});
- _removeCode($objfile) if (!$options->{'sav'} ||
- ($options->{'e'} && !$options->{'C'}));
+ _removeCode($objfile) if (($options->{'b'} &&
+ ($options->{'e'} && !$options->{'o'})) ||
+ (!$options->{'b'} &&
+ (!$options->{'sav'} ||
+ ($options->{'e'} && !$options->{'C'}))));
_removeCode($file) if ($options->{'e'});
- _removeCode($obj) if (($options->{'e'}
- && !$options->{'sav'}
- && !$options->{'o'})
- || ($options->{'run'} && !$options->{'sav'}));
+ _removeCode($obj) if (!$options->{'b'} &&
+ (($options->{'e'} &&
+ !$options->{'sav'} && !$options->{'o'}) ||
+ ($options->{'run'} && !$options->{'sav'})));
}
else
{
- _print( "Making C($objfile) for $file!\n", 36 );
- my $errcode = _createCode($objfile, $file, $obj);
+ _print( "Making $gentype($objfile) for $file!\n", 36 );
+ my $errcode = _createCode($backend, $objfile, $file, $obj);
(_print( "ERROR: In generating code for $file!\n", -1), return())
if ($errcode);
- _print( "Compiling C($so) for $file!\n", 36 ) if (!$options->{'gen'});
+ _print( "Compiling C($so) for $file!\n", 36 ) if (!$options->{'gen'} &&
+ !$options->{'b'});
- my $errorcode =
- _compileCode($file, $objfile, $obj, $so ) if (!$options->{'gen'});
+ $errcode =
+ _compileCode($file, $objfile, $obj, $so ) if (!$options->{'gen'} &&
+ !$options->{'b'});
(_print( "ERROR: In compiling code for $objfile!\n", -1), return())
if ($errcode);
sub _createCode
{
- my ( $generated_cfile, $file, $final_output ) = @_;
+ my ( $backend, $generated_file, $file, $final_output ) = @_;
my $return;
local($") = " -I";
- if (@_ == 2) # compiling a program
+ open(GENFILE, "> $generated_file") || die "Can't open $generated_file: $!";
+
+ if ($backend eq "Bytecode")
{
+ require ByteLoader;
+
+ print GENFILE "#!$^X\n" if @_ == 3;
+ print GENFILE "use ByteLoader $ByteLoader::VERSION;\n";
+ }
+
+ close(GENFILE);
+
+ if (@_ == 3) # compiling a program
+ {
+ chmod $generated_file, 0777 & ~umask if $backend eq "Bytecode";
+
_print( "$^X -I@INC -MB::Stash -c $file\n", 36);
my $stash=`$^X -I@INC -MB::Stash -c $file 2>/dev/null|tail -1`;
chomp $stash;
- _print( "$^X -I@INC -MO=CC,$stash,-o$generated_cfile $file\n", 36);
- $return = _run("$^X -I@INC -MO=CC,$stash,-o$generated_cfile $file", 9);
+ _print( "$^X -I@INC -MO=$backend,$stash $file\n", 36);
+ $return = _run("$^X -I@INC -MO=$backend,$stash $file >> $generated_file", 9);
$return;
}
else # compiling a shared object
{
_print(
- "$^X -I@INC -MO=CC,-m$final_output,-o$generated_cfile $file\n", 36);
+ "$^X -I@INC -MO=$backend,-m$final_output $file\n", 36);
$return =
- _run("$^X -I@INC -MO=CC,-m$final_output,-o$generated_cfile $file", 9);
+ _run("$^X -I@INC -MO=$backend,-m$final_output $file >> $generated_file", 9);
$return;
}
}
$_fh = new FileHandle(">> $options->{'log'}") || push(@errors, "ERROR: Couldn't open $options->{'log'}\n");
}
+ if ($options->{'b'} && $options->{'c'})
+ {
+ push(@errors,
+"ERROR: The '-b' and '-c' options are incompatible. The '-c' option specifies
+ a name for the intermediate C code but '-b' generates byte code
+ directly.\n");
+ }
+ if ($options->{'b'} && ($options->{'sav'} || $options->{'gen'}))
+ {
+ push(@errors,
+"ERROR: The '-sav' and '-gen' options are incompatible with the '-b' option.
+ They ask for intermediate C code to be saved by '-b' generates byte
+ code directly.\n");
+ }
+
if (($options->{'c'}) && (@ARGV > 1) && ($options->{'sav'} ))
{
push(@errors,
if (($options->{'o'}) && (@ARGV > 1))
{
push(@errors,
-"ERROR: The '-o' option is incompatible when you have more than one input file!
- (-o explicitly names the resulting executable, hence, with more than
+"ERROR: The '-o' option is incompatible when you have more than one input
+ file! (-o explicitly names the resulting file, hence, with more than
one file the names clash)\n");
}
- if ($options->{'e'} && $options->{'sav'} && !$options->{'o'} &&
+ if ($options->{'e'} && ($options->{'sav'} || $options->{'gen'}) && ò0
!$options->{'C'})
{
push(@errors,
"ERROR: You need to specify where you are going to save the resulting
- executable or C code, when using '-sav' and '-e'. Use '-o' or '-C'.\n");
+ C code when using '-sav' and '-e'. Use '-C'.\n");
}
if (($options->{'regex'} || $options->{'run'} || $options->{'o'})
sub _interruptrun
{
my ($command) = @_;
- my $pid = open (FD, "$command 2>&1 |");
+ my $pid = open (FD, "$command 2|");
local($SIG{HUP}) = sub {
# kill 9, $pid + 1;
};
my $needalarm =
- ($ENV{'COMPILE_TIMEOUT'} &&
+ ($ENV{'PERLCC_TIMEOUT'} &&
$Config{'osname'} ne 'MSWin32' && $command =~ m"^perlc");
my $text;
eval
{
local($SIG{ALRM}) = sub { die "INFINITE LOOP"; };
- alarm($ENV{'COMPILE_TIMEOUT'}) if ($needalarm);
+ alarm($ENV{'PERLCC_TIMEOUT'}) if ($needalarm);
$text = join('', <FD>);
alarm(0) if ($needalarm);
};
Usage: $0 <file_list>
+WARNING: The whole compiler suite ('perlcc' included) is considered VERY
+experimental. Use for production purposes is strongly discouraged.
+
Flags with arguments
-L < extra library dirs for installation (form of 'dir1:dir2') >
-I < extra include dirs for installation (form of 'dir1:dir2') >
-argv < arguments for the executables to be run via '-run' or '-e' >
Boolean flags
- -gen ( to just generate the c code. Implies '-sav' )
- -sav ( to save intermediate c code, (and executables with '-run'))
+ -b ( to generate byte code )
+ -opt ( to generated optimised C code. May not work in some cases. )
+ -gen ( to just generate the C code. Implies '-sav' )
+ -sav ( to save intermediate C code, (and executables with '-run'))
-run ( to run the compiled program on the fly, as were interpreted.)
-prog ( to indicate that the files on command line are programs )
-mod ( to indicate that the files on command line are modules )
=item -C < c_code_name >
-Explicitly gives the name B<c_code_name> to the generated c code which is to
-be compiled. Can only be used if compiling one file on the command line.
+Explicitly gives the name B<c_code_name> to the generated file containing
+the C code which is to be compiled. Can only be used if compiling one file
+on the command line.
=item -o < executable_name >
rather than throwing it away. Use '-argv' to pass arguments to the executable
created.
+=item -b
+
+Generates bytecode instead of C code.
+
+=item -opt
+
+Uses the optimized C backend (C<B::CC>)rather than the simple C backend
+(C<B::C>). Beware that the optimized C backend creates very large
+switch structures and structure initializations. Many C compilers
+find it a challenge to compile the resulting output in finite amounts
+of time. Many Perl features such as C<goto LABEL> are also not
+supported by the optimized C backend. The simple C backend should
+work in more instances, but can only offer modest speed increases.
+
=item -regex <rename_regex>
Gives a rule B<rename_regex> - which is a legal perl regular expression - to
which would have the effect of compiling ANYTHING (except what is in
PERL_MODULE_EXT) into an executable with 5 less characters in its name.
+The PERLCC_OPTS environment variable can be set to the default flags
+that must be used by the compiler.
+
+The PERLCC_TIMEOUT environment variable can be set to the number of
+seconds to wait for the backends before giving up. This is sometimes
+necessary to avoid some compilers taking forever to compile the
+generated output. May not work on Windows and similar platforms.
+
=head1 FILES
'perlcc' uses a temporary file when you use the B<-e> option to evaluate
=head1 BUGS
+The whole compiler suite (C<perlcc> included) should be considered very
+experimental. Use for production purposes is strongly discouraged.
+
perlcc currently cannot compile shared objects on Win32. This should be fixed
-by perl5.005.
+in future.
+
+Bugs in the various compiler backends still exist, and are perhaps too
+numerous to list here.
=cut
projects / p5sagit/p5-mst-13.2.git / commitdiff