use File::Path qw(mkpath);
use Getopt::Std;
-getopts('Dd:rlhaQ');
-use vars qw($opt_D $opt_d $opt_r $opt_l $opt_h $opt_a $opt_Q);
+# Make sure read permissions for all are set:
+if (defined umask && (umask() & 0444)) {
+ umask (umask() & ~0444);
+}
+
+getopts('Dd:rlhaQe');
+use vars qw($opt_D $opt_d $opt_r $opt_l $opt_h $opt_a $opt_Q $opt_e);
die "-r and -a options are mutually exclusive\n" if ($opt_r and $opt_a);
my @inc_dirs = inc_dirs() if $opt_a;
die "Destination directory $Dest_dir doesn't exist or isn't a directory\n"
unless -d $Dest_dir;
-my @isatype = split(' ',<<END);
+my @isatype = qw(
char uchar u_char
short ushort u_short
int uint u_int
long ulong u_long
FILE key_t caddr_t
-END
+ float double size_t
+);
my %isatype;
@isatype{@isatype} = (1) x @isatype;
my $inif = 0;
my %Is_converted;
+my %bad_file = ();
@ARGV = ('-') unless @ARGV;
build_preamble_if_necessary();
+sub reindent($) {
+ my($text) = shift;
+ $text =~ s/\n/\n /g;
+ $text =~ s/ /\t/g;
+ $text;
+}
+
my ($t, $tab, %curargs, $new, $eval_index, $dir, $name, $args, $outfile);
-my ($incl, $next);
+my ($incl, $incl_type, $next);
while (defined (my $file = next_file())) {
if (-l $file and -d $file) {
link_if_possible($file) if ($opt_l);
open(OUT,">$Dest_dir/$outfile") || die "Can't create $outfile: $!\n";
}
- print OUT "require '_h2ph_pre.ph';\n\n";
+ print OUT
+ "require '_h2ph_pre.ph';\n\n",
+ "no warnings 'redefine';\n\n";
while (defined (local $_ = next_line($file))) {
if (s/^\s*\#\s*//) {
$name = $1;
$new = '';
s/\s+$//;
+ s/\(\w+\s*\(\*\)\s*\(\w*\)\)\s*(-?\d+)/$1/; # (int (*)(foo_t))0
if (s/^\(([\w,\s]*)\)//) {
$args = $1;
- my $proto = '() ';
+ my $proto = '() ';
if ($args ne '') {
- $proto = '';
+ $proto = '';
foreach my $arg (split(/,\s*/,$args)) {
$arg =~ s/^\s*([^\s].*[^\s])\s*$/$1/;
$curargs{$arg} = 1;
}
$args =~ s/\b(\w)/\$$1/g;
- $args = "local($args) = \@_;\n$t ";
+ $args = "my($args) = \@_;\n$t ";
}
s/^\s+//;
expr();
$new =~ s/(["\\])/\\$1/g; #"]);
+ EMIT:
$new = reindent($new);
$args = reindent($args);
if ($t ne '') {
print OUT $t,"unless(defined(\&$name)) {\n sub $name () {\t",$new,";}\n}\n";
}
}
- } elsif (/^(include|import)\s*[<"](.*)[>"]/) {
- ($incl = $2) =~ s/\.h$/.ph/;
- print OUT $t,"require '$incl';\n";
- } elsif(/^include_next\s*[<"](.*)[>"]/) {
- ($incl = $1) =~ s/\.h$/.ph/;
+ } elsif (/^(include|import|include_next)\s*[<\"](.*)[>\"]/) {
+ $incl_type = $1;
+ $incl = $2;
+ if (($incl_type eq 'include_next') ||
+ ($opt_e && exists($bad_file{$incl}))) {
+ $incl =~ s/\.h$/.ph/;
print OUT ($t,
"eval {\n");
$tab += 4;
$t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
+ print OUT ($t, "my(\@REM);\n");
+ if ($incl_type eq 'include_next') {
print OUT ($t,
"my(\%INCD) = map { \$INC{\$_} => 1 } ",
- "(grep { \$_ eq \"$incl\" } keys(\%INC));\n");
+ "(grep { \$_ eq \"$incl\" } ",
+ "keys(\%INC));\n");
print OUT ($t,
- "my(\@REM) = map { \"\$_/$incl\" } ",
+ "\@REM = map { \"\$_/$incl\" } ",
"(grep { not exists(\$INCD{\"\$_/$incl\"})",
- "and -f \"\$_/$incl\" } \@INC);\n");
+ " and -f \"\$_/$incl\" } \@INC);\n");
+ } else {
+ print OUT ($t,
+ "\@REM = map { \"\$_/$incl\" } ",
+ "(grep {-r \"\$_/$incl\" } \@INC);\n");
+ }
print OUT ($t,
"require \"\$REM[0]\" if \@REM;\n");
$tab -= 4;
"};\n");
print OUT ($t,
"warn(\$\@) if \$\@;\n");
+ } else {
+ $incl =~ s/\.h$/.ph/;
+ print OUT $t,"require '$incl';\n";
+ }
} elsif (/^ifdef\s+(\w+)/) {
print OUT $t,"if(defined(&$1)) {\n";
$tab += 4;
} elsif(/^ident\s+(.*)/) {
print OUT $t, "# $1\n";
}
- } elsif(/^\s*(typedef\s*)?enum\s*(\s+[a-zA-Z_]\w*\s*)?/) {
+ } elsif (/^\s*(typedef\s*)?enum\s*(\s+[a-zA-Z_]\w*\s*)?/) { # { for vi
until(/\{[^}]*\}.*;/ || /;/) {
last unless defined ($next = next_line($file));
chomp $next;
# drop "#define FOO FOO" in enums
$next =~ s/^\s*#\s*define\s+(\w+)\s+\1\s*$//;
+ # #defines in enums (aliases)
+ $next =~ s/^\s*#\s*define\s+(\w+)\s+(\w+)\s*$/$1 = $2,/;
$_ .= $next;
print OUT "# $next\n" if $opt_D;
}
my $enum_val = -1;
foreach my $enum (@enum_subs) {
my ($enum_name, $enum_value) = $enum =~ /^([a-zA-Z_]\w*)(=.+)?$/;
+ $enum_name or next;
$enum_value =~ s/^=//;
$enum_val = (length($enum_value) ? $enum_value : $enum_val + 1);
if ($opt_h) {
"unless defined(\&$enum_name);\n");
}
}
+ } elsif (/^(?:__extension__\s+)?(?:extern|static)\s+(?:__)?inline(?:__)?\s+/
+ and !/;\s*$/ and !/{\s*}\s*$/)
+ { # { for vi
+ # This is a hack to parse the inline functions in the glibc headers.
+ # Warning: massive kludge ahead. We suppose inline functions
+ # are mainly constructed like macros.
+ while (1) {
+ last unless defined ($next = next_line($file));
+ chomp $next;
+ undef $_, last if $next =~ /__THROW\s*;/
+ or $next =~ /^(__extension__|extern|static)\b/;
+ $_ .= " $next";
+ print OUT "# $next\n" if $opt_D;
+ last if $next =~ /^}|^{.*}\s*$/;
+ }
+ next if not defined; # because it's only a prototype
+ s/\b(__extension__|extern|static|(?:__)?inline(?:__)?)\b//g;
+ # violently drop #ifdefs
+ s/#\s*if.*?#\s*endif//g
+ and print OUT "# some #ifdef were dropped here -- fill in the blanks\n";
+ if (s/^(?:\w|\s|\*)*\s(\w+)\s*//) {
+ $name = $1;
+ } else {
+ warn "name not found"; next; # shouldn't occur...
+ }
+ my @args;
+ if (s/^\(([^()]*)\)\s*(\w+\s*)*//) {
+ for my $arg (split /,/, $1) {
+ if ($arg =~ /(\w+)\s*$/) {
+ $curargs{$1} = 1;
+ push @args, $1;
+ }
+ }
+ }
+ $args = (
+ @args
+ ? "my(" . (join ',', map "\$$_", @args) . ") = \@_;\n$t "
+ : ""
+ );
+ my $proto = @args ? '' : '() ';
+ $new = '';
+ s/\breturn\b//g; # "return" doesn't occur in macros usually...
+ expr();
+ # try to find and perlify local C variables
+ our @local_variables = (); # needs to be a our(): (?{...}) bug workaround
+ {
+ use re "eval";
+ my $typelist = join '|', keys %isatype;
+ $new =~ s['
+ (?:(?:__)?const(?:__)?\s+)?
+ (?:(?:un)?signed\s+)?
+ (?:long\s+)?
+ (?:$typelist)\s+
+ (\w+)
+ (?{ push @local_variables, $1 })
+ ']
+ [my \$$1]gx;
+ $new =~ s['
+ (?:(?:__)?const(?:__)?\s+)?
+ (?:(?:un)?signed\s+)?
+ (?:long\s+)?
+ (?:$typelist)\s+
+ ' \s+ &(\w+) \s* ;
+ (?{ push @local_variables, $1 })
+ ]
+ [my \$$1;]gx;
+ }
+ $new =~ s/&$_\b/\$$_/g for @local_variables;
+ $new =~ s/(["\\])/\\$1/g; #"]);
+ # now that's almost like a macro (we hope)
+ goto EMIT;
}
}
- print OUT "1;\n";
-
$Is_converted{$file} = 1;
- queue_includes_from($file) if ($opt_a);
+ if ($opt_e && exists($bad_file{$file})) {
+ unlink($Dest_dir . '/' . $outfile);
+ $next = '';
+ } else {
+ print OUT "1;\n";
+ queue_includes_from($file) if $opt_a;
+ }
}
-exit $Exit;
-
-
-sub reindent($) {
- my($text) = shift;
- $text =~ s/\n/\n /g;
- $text =~ s/ /\t/g;
- $text;
+if ($opt_e && (scalar(keys %bad_file) > 0)) {
+ warn "Was unable to convert the following files:\n";
+ warn "\t" . join("\n\t",sort(keys %bad_file)) . "\n";
}
+exit $Exit;
sub expr {
+ $new = '"(assembly code)"' and return if /\b__asm__\b/; # freak out.
my $joined_args;
if(keys(%curargs)) {
$joined_args = join('|', keys(%curargs));
s/^\&\&// && do { $new .= " &&"; next;}; # handle && operator
s/^\&([\(a-z\)]+)/$1/i; # hack for things that take the address of
s/^(\s+)// && do {$new .= ' '; next;};
- s/^(0X[0-9A-F]+)[UL]*//i && do {$new .= lc($1); next;};
+ s/^0X([0-9A-F]+)[UL]*//i
+ && do {my $hex = $1;
+ $hex =~ s/^0+//;
+ if (length $hex > 8 && !$Config{use64bitint}) {
+ # Croak if nv_preserves_uv_bits < 64 ?
+ $new .= hex(substr($hex, -8)) +
+ 2**32 * hex(substr($hex, 0, -8));
+ # The above will produce "errorneus" code
+ # if the hex constant was e.g. inside UINT64_C
+ # macro, but then again, h2ph is an approximation.
+ } else {
+ $new .= lc("0x$hex");
+ }
+ next;};
s/^(-?\d+\.\d+E[-+]?\d+)[FL]?//i && do {$new .= $1; next;};
s/^(\d+)\s*[LU]*//i && do {$new .= $1; next;};
s/^("(\\"|[^"])*")// && do {$new .= $1; next;};
};
# Eliminate typedefs
/\(([\w\s]+)[\*\s]*\)\s*[\w\(]/ && do {
+ my $doit = 1;
foreach (split /\s+/, $1) { # Make sure all the words are types,
- last unless ($isatype{$_} or $_ eq 'struct' or $_ eq 'union');
+ unless($isatype{$_} or $_ eq 'struct' or $_ eq 'union'){
+ $doit = 0;
+ last;
+ }
+ }
+ if( $doit ){
+ s/\([\w\s]+[\*\s]*\)// && next; # then eliminate them.
}
- s/\([\w\s]+[\*\s]*\)// && next; # then eliminate them.
};
# struct/union member, including arrays:
s/^([_A-Z]\w*(\[[^\]]+\])?((\.|->)[_A-Z]\w*(\[[^\]]+\])?)+)//i && do {
while (length $in) {
if ($pre_sub_tri_graphs) {
- # Preprocess all tri-graphs
+ # Preprocess all tri-graphs
# including things stuck in quoted string constants.
$in =~ s/\?\?=/#/g; # | ??=| #|
$in =~ s/\?\?\!/|/g; # | ??!| ||
$in =~ s/\?\?>/}/g; # | ??>| }|
}
if ($in =~ /^\#ifdef __LANGUAGE_PASCAL__/) {
- # Tru64 disassembler.h evilness: mixed C and Pascal.
+ # Tru64 disassembler.h evilness: mixed C and Pascal.
while (<IN>) {
- last if /^\#endif/;
+ last if /^\#endif/;
}
+ $in = "";
next READ;
}
- if ($in =~ /^extern inline / &&
+ if ($in =~ /^extern inline / && # Inlined assembler.
$^O eq 'linux' && $file =~ m!(?:^|/)asm/[^/]+\.h$!) {
- while (<IN>) {
- last if /^}/;
+ while (<IN>) {
+ last if /^}/;
}
+ $in = "";
next READ;
}
if ($in =~ s/\\$//) { # \-newline
$out .= $1;
} elsif ($in =~ s/^(\\.)//) { # \...
$out .= $1;
- } elsif ($in =~ s/^('(\\.|[^'\\])*')//) { # '...
- $out .= $1;
- } elsif ($in =~ s/^("(\\.|[^"\\])*")//) { # "...
- $out .= $1;
+ } elsif ($in =~ /^'/) { # '...
+ if ($in =~ s/^('(\\.|[^'\\])*')//) {
+ $out .= $1;
+ } else {
+ next READ;
+ }
+ } elsif ($in =~ /^"/) { # "...
+ if ($in =~ s/^("(\\.|[^"\\])*")//) {
+ $out .= $1;
+ } else {
+ next READ;
+ }
} elsif ($in =~ s/^\/\/.*//) { # //...
# fall through
} elsif ($in =~ m/^\/\*/) { # /*...
$out .= $1;
} elsif ($in =~ s/^([^\'\"\\\/]+)//) {
$out .= $1;
+ } elsif ($^O eq 'linux' &&
+ $file =~ m!(?:^|/)linux/byteorder/pdp_endian\.h$! &&
+ $in =~ s!\'T KNOW!!) {
+ $out =~ s!I DON$!I_DO_NOT_KNOW!;
} else {
+ if ($opt_e) {
+ warn "Cannot parse $file:\n$in\n";
+ $bad_file{$file} = 1;
+ $in = '';
+ $out = undef;
+ last READ;
+ } else {
die "Cannot parse:\n$in\n";
+ }
}
}
# non-GCC?) C compilers, but gcc uses an additional include directory.
sub inc_dirs
{
- my $from_gcc = `$Config{cc} -v 2>&1`;
- $from_gcc =~ s:^Reading specs from (.*?)/specs\b.*:$1/include:s;
-
+ my $from_gcc = `LC_ALL=C $Config{cc} -v 2>&1`;
+ if( !( $from_gcc =~ s:^Reading specs from (.*?)/specs\b.*:$1/include:s ) )
+ { # gcc-4+ :
+ $from_gcc = `LC_ALL=C $Config{cc} -print-search-dirs 2>&1`;
+ if ( !($from_gcc =~ s/^install:\s*([^\s]+[^\s\/])([\s\/]*).*$/$1\/include/s) )
+ {
+ $from_gcc = '';
+ };
+ };
length($from_gcc) ? ($from_gcc, $Config{usrinc}) : ($Config{usrinc});
}
my (%define) = _extract_cc_defines();
open PREAMBLE, ">$preamble" or die "Cannot open $preamble: $!";
- print PREAMBLE "# This file was created by h2ph version $VERSION\n";
-
- foreach (sort keys %define) {
- if ($opt_D) {
- print PREAMBLE "# $_=$define{$_}\n";
- }
+ print PREAMBLE "# This file was created by h2ph version $VERSION\n";
- if ($define{$_} =~ /^(\d+)U?L{0,2}$/i) {
- print PREAMBLE
- "unless (defined &$_) { sub $_() { $1 } }\n\n";
- } elsif ($define{$_} =~ /^\w+$/) {
- print PREAMBLE
- "unless (defined &$_) { sub $_() { &$define{$_} } }\n\n";
- } else {
- print PREAMBLE
- "unless (defined &$_) { sub $_() { \"",
- quotemeta($define{$_}), "\" } }\n\n";
- }
- }
+ foreach (sort keys %define) {
+ if ($opt_D) {
+ print PREAMBLE "# $_=$define{$_}\n";
+ }
+ if ($define{$_} =~ /^\((.*)\)$/) {
+ # parenthesized value: d=(v)
+ $define{$_} = $1;
+ }
+ if ($define{$_} =~ /^([+-]?(\d+)?\.\d+([eE][+-]?\d+)?)[FL]?$/) {
+ # float:
+ print PREAMBLE
+ "unless (defined &$_) { sub $_() { $1 } }\n\n";
+ } elsif ($define{$_} =~ /^([+-]?\d+)U?L{0,2}$/i) {
+ # integer:
+ print PREAMBLE
+ "unless (defined &$_) { sub $_() { $1 } }\n\n";
+ } elsif ($define{$_} =~ /^\w+$/) {
+ print PREAMBLE
+ "unless (defined &$_) { sub $_() { &$define{$_} } }\n\n";
+ } else {
+ print PREAMBLE
+ "unless (defined &$_) { sub $_() { \"",
+ quotemeta($define{$_}), "\" } }\n\n";
+ }
+ }
close PREAMBLE or die "Cannot close $preamble: $!";
}
{
my %define;
my $allsymbols = join " ",
- @Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'};
+ @Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'};
# Split compiler pre-definitions into `key=value' pairs:
- foreach (split /\s+/, $allsymbols) {
- /(.+?)=(.+)/ and $define{$1} = $2;
-
- if ($opt_D) {
- print STDERR "$_: $1 -> $2\n";
- }
+ while ($allsymbols =~ /([^\s]+)=((\\\s|[^\s])+)/g) {
+ $define{$1} = $2;
+ if ($opt_D) {
+ print STDERR "$_: $1 -> $2\n";
+ }
}
return %define;
Doesn't handle complicated expressions built piecemeal, a la:
enum {
- FIRST_VALUE,
- SECOND_VALUE,
+ FIRST_VALUE,
+ SECOND_VALUE,
#ifdef ABC
- THIRD_VALUE
+ THIRD_VALUE
#endif
};
https://perl5.git.perl.org / perl5.git / blobdiff