use Config;
use File::Basename qw(&basename &dirname);
+use Cwd;
+use subs qw(link);
+
+sub link { # This is a cut-down version of installperl:link().
+ my($from,$to) = @_;
+ my($success) = 0;
+
+ eval {
+ CORE::link($from, $to)
+ ? $success++
+ : ($from =~ m#^/afs/# || $to =~ m#^/afs/#)
+ ? die "AFS" # okay inside eval {}
+ : die "Couldn't link $from to $to: $!\n";
+ };
+ if ($@) {
+ warn $@;
+ require File::Copy;
+ File::Copy::copy($from, $to)
+ ? $success++
+ : warn "Couldn't copy $from to $to: $!\n";
+ }
+ $success;
+}
# List explicitly here the variables you want Configure to
# generate. Metaconfig only looks for shell variables, so you
# This forces PL files to create target in same directory as PL file.
# This is so that make depend always knows where to find PL derivatives.
-chdir(dirname($0));
-($file = basename($0)) =~ s/\.PL$//;
-$file =~ s/\.pl$//
- if ($Config{'osname'} eq 'VMS' or
- $Config{'osname'} eq 'OS2'); # "case-forgiving"
+$origdir = cwd;
+chdir dirname($0);
+$file = basename($0, '.PL');
+$file .= '.com' if $^O eq 'VMS';
open OUT,">$file" or die "Can't create $file: $!";
# You can use $Config{...} to use Configure variables.
print OUT <<"!GROK!THIS!";
-$Config{'startperl'}
- eval 'exec perl -S \$0 "\$@"'
- if 0;
+$Config{startperl}
+ eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
+ if \$running_under_some_shell;
!GROK!THIS!
# In the following, perl variables are not expanded during extraction.
#
# c2ph (aka pstruct)
# Tom Christiansen, <tchrist@convex.com>
-#
+#
# As pstruct, dump C structures as generated from 'cc -g -S' stabs.
# As c2ph, do this PLUS generate perl code for getting at the structures.
#
# See the usage message for more. If this isn't enough, read the code.
#
+=head1 NAME
+
+c2ph, pstruct - Dump C structures as generated from C<cc -g -S> stabs
+
+=head1 SYNOPSIS
+
+ c2ph [-dpnP] [var=val] [files ...]
+
+=head2 OPTIONS
+
+ Options:
+
+ -w wide; short for: type_width=45 member_width=35 offset_width=8
+ -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04
+
+ -n do not generate perl code (default when invoked as pstruct)
+ -p generate perl code (default when invoked as c2ph)
+ -v generate perl code, with C decls as comments
+
+ -i do NOT recompute sizes for intrinsic datatypes
+ -a dump information on intrinsics also
+
+ -t trace execution
+ -d spew reams of debugging output
+
+ -slist give comma-separated list a structures to dump
+
+=head1 DESCRIPTION
+
+The following is the old c2ph.doc documentation by Tom Christiansen
+<tchrist@perl.com>
+Date: 25 Jul 91 08:10:21 GMT
+
+Once upon a time, I wrote a program called pstruct. It was a perl
+program that tried to parse out C structures and display their member
+offsets for you. This was especially useful for people looking at
+binary dumps or poking around the kernel.
+
+Pstruct was not a pretty program. Neither was it particularly robust.
+The problem, you see, was that the C compiler was much better at parsing
+C than I could ever hope to be.
+
+So I got smart: I decided to be lazy and let the C compiler parse the C,
+which would spit out debugger stabs for me to read. These were much
+easier to parse. It's still not a pretty program, but at least it's more
+robust.
+
+Pstruct takes any .c or .h files, or preferably .s ones, since that's
+the format it is going to massage them into anyway, and spits out
+listings like this:
+
+ struct tty {
+ int tty.t_locker 000 4
+ int tty.t_mutex_index 004 4
+ struct tty * tty.t_tp_virt 008 4
+ struct clist tty.t_rawq 00c 20
+ int tty.t_rawq.c_cc 00c 4
+ int tty.t_rawq.c_cmax 010 4
+ int tty.t_rawq.c_cfx 014 4
+ int tty.t_rawq.c_clx 018 4
+ struct tty * tty.t_rawq.c_tp_cpu 01c 4
+ struct tty * tty.t_rawq.c_tp_iop 020 4
+ unsigned char * tty.t_rawq.c_buf_cpu 024 4
+ unsigned char * tty.t_rawq.c_buf_iop 028 4
+ struct clist tty.t_canq 02c 20
+ int tty.t_canq.c_cc 02c 4
+ int tty.t_canq.c_cmax 030 4
+ int tty.t_canq.c_cfx 034 4
+ int tty.t_canq.c_clx 038 4
+ struct tty * tty.t_canq.c_tp_cpu 03c 4
+ struct tty * tty.t_canq.c_tp_iop 040 4
+ unsigned char * tty.t_canq.c_buf_cpu 044 4
+ unsigned char * tty.t_canq.c_buf_iop 048 4
+ struct clist tty.t_outq 04c 20
+ int tty.t_outq.c_cc 04c 4
+ int tty.t_outq.c_cmax 050 4
+ int tty.t_outq.c_cfx 054 4
+ int tty.t_outq.c_clx 058 4
+ struct tty * tty.t_outq.c_tp_cpu 05c 4
+ struct tty * tty.t_outq.c_tp_iop 060 4
+ unsigned char * tty.t_outq.c_buf_cpu 064 4
+ unsigned char * tty.t_outq.c_buf_iop 068 4
+ (*int)() tty.t_oproc_cpu 06c 4
+ (*int)() tty.t_oproc_iop 070 4
+ (*int)() tty.t_stopproc_cpu 074 4
+ (*int)() tty.t_stopproc_iop 078 4
+ struct thread * tty.t_rsel 07c 4
+
+etc.
+
+
+Actually, this was generated by a particular set of options. You can control
+the formatting of each column, whether you prefer wide or fat, hex or decimal,
+leading zeroes or whatever.
+
+All you need to be able to use this is a C compiler than generates
+BSD/GCC-style stabs. The B<-g> option on native BSD compilers and GCC
+should get this for you.
+
+To learn more, just type a bogus option, like B<-\?>, and a long usage message
+will be provided. There are a fair number of possibilities.
+
+If you're only a C programmer, than this is the end of the message for you.
+You can quit right now, and if you care to, save off the source and run it
+when you feel like it. Or not.
+
+
+
+But if you're a perl programmer, then for you I have something much more
+wondrous than just a structure offset printer.
+
+You see, if you call pstruct by its other incybernation, c2ph, you have a code
+generator that translates C code into perl code! Well, structure and union
+declarations at least, but that's quite a bit.
+
+Prior to this point, anyone programming in perl who wanted to interact
+with C programs, like the kernel, was forced to guess the layouts of
+the C structures, and then hardwire these into his program. Of course,
+when you took your wonderfully crafted program to a system where the
+sgtty structure was laid out differently, your program broke. Which is
+a shame.
+
+We've had Larry's h2ph translator, which helped, but that only works on
+cpp symbols, not real C, which was also very much needed. What I offer
+you is a symbolic way of getting at all the C structures. I've couched
+them in terms of packages and functions. Consider the following program:
+
+ #!/usr/local/bin/perl
+
+ require 'syscall.ph';
+ require 'sys/time.ph';
+ require 'sys/resource.ph';
+
+ $ru = "\0" x &rusage'sizeof();
+
+ syscall(&SYS_getrusage, &RUSAGE_SELF, $ru) && die "getrusage: $!";
+
+ @ru = unpack($t = &rusage'typedef(), $ru);
+
+ $utime = $ru[ &rusage'ru_utime + &timeval'tv_sec ]
+ + ($ru[ &rusage'ru_utime + &timeval'tv_usec ]) / 1e6;
+
+ $stime = $ru[ &rusage'ru_stime + &timeval'tv_sec ]
+ + ($ru[ &rusage'ru_stime + &timeval'tv_usec ]) / 1e6;
+
+ printf "you have used %8.3fs+%8.3fu seconds.\n", $utime, $stime;
+
+
+As you see, the name of the package is the name of the structure. Regular
+fields are just their own names. Plus the following accessor functions are
+provided for your convenience:
+
+ struct This takes no arguments, and is merely the number of first-level
+ elements in the structure. You would use this for indexing
+ into arrays of structures, perhaps like this
+
+
+ $usec = $u[ &user'u_utimer
+ + (&ITIMER_VIRTUAL * &itimerval'struct)
+ + &itimerval'it_value
+ + &timeval'tv_usec
+ ];
+
+ sizeof Returns the bytes in the structure, or the member if
+ you pass it an argument, such as
+
+ &rusage'sizeof(&rusage'ru_utime)
+
+ typedef This is the perl format definition for passing to pack and
+ unpack. If you ask for the typedef of a nothing, you get
+ the whole structure, otherwise you get that of the member
+ you ask for. Padding is taken care of, as is the magic to
+ guarantee that a union is unpacked into all its aliases.
+ Bitfields are not quite yet supported however.
+
+ offsetof This function is the byte offset into the array of that
+ member. You may wish to use this for indexing directly
+ into the packed structure with vec() if you're too lazy
+ to unpack it.
+
+ typeof Not to be confused with the typedef accessor function, this
+ one returns the C type of that field. This would allow
+ you to print out a nice structured pretty print of some
+ structure without knoning anything about it beforehand.
+ No args to this one is a noop. Someday I'll post such
+ a thing to dump out your u structure for you.
+
+
+The way I see this being used is like basically this:
+
+ % h2ph <some_include_file.h > /usr/lib/perl/tmp.ph
+ % c2ph some_include_file.h >> /usr/lib/perl/tmp.ph
+ % install
+
+It's a little tricker with c2ph because you have to get the includes right.
+I can't know this for your system, but it's not usually too terribly difficult.
+
+The code isn't pretty as I mentioned -- I never thought it would be a 1000-
+line program when I started, or I might not have begun. :-) But I would have
+been less cavalier in how the parts of the program communicated with each
+other, etc. It might also have helped if I didn't have to divine the makeup
+of the stabs on the fly, and then account for micro differences between my
+compiler and gcc.
+
+Anyway, here it is. Should run on perl v4 or greater. Maybe less.
+
+
+ --tom
+
+=cut
+
$RCSID = '$Id: c2ph,v 1.7 95/10/28 10:41:47 tchrist Exp Locker: tchrist $';
+use File::Temp;
######################################################################
$bitorder = 'b'; # ascending; set to B for descending bit fields
-%intrinsics =
+%intrinsics =
%template = (
'char', 'c',
'unsigned char', 'C',
'null', 'x',
'neganull', 'X',
'bit', $bitorder,
-);
+);
&buildscrunchlist;
delete $intrinsics{'neganull'};
$indent = 2;
$CC = 'cc';
-$CFLAGS = '-g -S';
+!NO!SUBS!
+
+if (($Config{gccversion} || '') =~ /^(\d+)\.(\d+)/
+ and ($1 > 3 or ($1 == 3 and $2 >= 2))) {
+ print OUT q/$CFLAGS = '-gstabs -S';/;
+} else {
+ print OUT q/$CFLAGS = '-g -S';/;
+}
+
+print OUT <<'!NO!SUBS!';
+
$DEFINES = '';
$perl++ if $0 =~ m#/?c2ph$#;
require 'getopts.pl';
+use File::Temp 'tempdir';
+
eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift;
&Getopts('aixdpvtnws:') || &usage(0);
if ($opt_w) {
($type_width, $member_width, $offset_width) = (45, 35, 8);
-}
+}
if ($opt_x) {
($offset_fmt, $offset_width, $size_fmt, $size_width) = ( 'x', '08', 'x', 04 );
}
print "oops, apperent pager foulup\n";
$isatty++;
&usage(1);
-}
+}
sub usage {
local($oops) = @_;
open (PIPE, "|". ($ENV{PAGER} || 'more'));
$SIG{PIPE} = PLUMBER;
select(PIPE);
- }
+ }
print "usage: $0 [-dpnP] [var=val] [files ...]\n";
If any *.[ch] files are given, these will be catted together into
a temporary *.c file and sent through:
- $CC $CFLAGS $DEFINES
+ $CC $CFLAGS $DEFINES
and the resulting *.s groped for stab information. If no files are
supplied, then stdin is read directly with the assumption that it
- contains stab information. All other liens will be ignored. At
+ contains stab information. All other lines will be ignored. At
most one *.s file should be supplied.
EOF
close PIPE;
exit 1;
-}
+}
sub defvar {
local($var, $msg) = @_;
printf "%-16s%-15s %s\n", $var, eval "\$$var", $msg;
-}
+}
+
+sub safedir {
+ $SAFEDIR = File::Temp::tempdir("c2ph.XXXXXX", TMPDIR => 1, CLEANUP => 1)
+ unless (defined($SAFEDIR));
+}
+
+undef $SAFEDIR;
$recurse = 1;
if (grep(!/\.[csh]$/,@ARGV)) {
warn "Only *.[csh] files expected!\n";
&usage;
- }
+ }
elsif (grep(/\.s$/,@ARGV)) {
- if (@ARGV > 1) {
+ if (@ARGV > 1) {
warn "Only one *.s file allowed!\n";
&usage;
}
- }
+ }
elsif (@ARGV == 1 && $ARGV[0] =~ /\.c$/) {
local($dir, $file) = $ARGV[0] =~ m#(.*/)?(.*)$#;
- $chdir = "cd $dir; " if $dir;
+ $chdir = "cd $dir && " if $dir;
&system("$chdir$CC $CFLAGS $DEFINES $file") && exit 1;
$ARGV[0] =~ s/\.c$/.s/;
- }
+ }
else {
- $TMP = "/tmp/c2ph.$$.c";
+ &safedir;
+ $TMP = "$SAFEDIR/c2ph.$$.c";
&system("cat @ARGV > $TMP") && exit 1;
- &system("cd /tmp; $CC $CFLAGS $DEFINES $TMP") && exit 1;
+ &system("cd $SAFEDIR && $CC $CFLAGS $DEFINES $TMP") && exit 1;
unlink $TMP;
$TMP =~ s/\.c$/.s/;
@ARGV = ($TMP);
- }
+ }
}
if ($opt_s) {
for (split(/[\s,]+/, $opt_s)) {
$interested{$_}++;
- }
-}
+ }
+}
$| = 1 if $debug;
main: {
if ($trace) {
- if (-t && !@ARGV) {
+ if (-t && !@ARGV) {
print STDERR "reading from your keyboard: ";
} else {
print STDERR "reading from " . (@ARGV ? "@ARGV" : "<STDIN>").": ";
if ($trace && !($. % 10)) {
$lineno = $..'';
print STDERR $lineno, "\b" x length($lineno);
- }
+ }
next unless /^\s*\.stabs\s+/;
$line = $_;
- s/^\s*\.stabs\s+//;
+ s/^\s*\.stabs\s+//;
if (s/\\\\"[d,]+$//) {
$saveline .= $line;
$savebar = $_;
next STAB;
- }
+ }
if ($saveline) {
s/^"//;
$_ = $savebar . $_;
$line = $saveline;
- }
- &stab;
+ }
+ &stab;
$savebar = $saveline = undef;
}
print STDERR "$.\n" if $trace;
&adjust_start_addrs;
$sum = 2 + $type_width + $member_width;
- $pmask1 = "%-${type_width}s %-${member_width}s";
+ $pmask1 = "%-${type_width}s %-${member_width}s";
$pmask2 = "%-${sum}s %${offset_width}${offset_fmt}%s %${size_width}${size_fmt}%s";
$build_recursed = 0;
&build_template($name) unless defined $template{&psou($name)} ||
$opt_s && !$interested{$iname};
- }
+ }
print STDERR "\n\n" if $trace;
}
print "# " if $perl && $verbose;
$pcode = '';
- print "$fname {\n" if !$perl || $verbose;
+ print "$fname {\n" if !$perl || $verbose;
$template{$fname} = &scrunch($template{$fname}) if $perl;
- &pstruct($name,$name,0);
+ &pstruct($name,$name,0);
print "# " if $perl && $verbose;
- print "}\n" if !$perl || $verbose;
+ print "}\n" if !$perl || $verbose;
print "\n" if $perl && $verbose;
if ($perl) {
printf("\nsub %-32s { %4d; }\n\n", "${mname}'struct", $countof{$name});
print <<EOF;
-sub ${mname}'typedef {
+sub ${mname}'typedef {
local(\$${mname}'index) = shift;
- defined \$${mname}'index
- ? \$${mname}'typedef[\$${mname}'index]
+ defined \$${mname}'index
+ ? \$${mname}'typedef[\$${mname}'index]
: \$${mname}'typedef;
}
EOF
print <<EOF;
-sub ${mname}'sizeof {
+sub ${mname}'sizeof {
local(\$${mname}'index) = shift;
- defined \$${mname}'index
- ? \$${mname}'sizeof[\$${mname}'index]
+ defined \$${mname}'index
+ ? \$${mname}'sizeof[\$${mname}'index]
: \$${mname}'sizeof;
}
EOF
print <<EOF;
-sub ${mname}'offsetof {
+sub ${mname}'offsetof {
local(\$${mname}'index) = shift;
- defined \$${mname}index
- ? \$${mname}'offsetof[\$${mname}'index]
+ defined \$${mname}index
+ ? \$${mname}'offsetof[\$${mname}'index]
: \$${mname}'sizeof;
}
EOF
print <<EOF;
-sub ${mname}'typeof {
+sub ${mname}'typeof {
local(\$${mname}'index) = shift;
- defined \$${mname}index
- ? \$${mname}'typeof[\$${mname}'index]
+ defined \$${mname}index
+ ? \$${mname}'typeof[\$${mname}'index]
: '$name';
}
EOF
-
+
print <<EOF;
-sub ${mname}'fieldnames {
- \@${mname}'fieldnames;
+sub ${mname}'fieldnames {
+ \@${mname}'fieldnames;
}
EOF
$iam = ($isastruct{$name} && 's') || ($isaunion{$name} && 'u');
-
+
print <<EOF;
-sub ${mname}'isastruct {
- '$iam';
+sub ${mname}'isastruct {
+ '$iam';
}
EOF
- print "\$${mname}'typedef = '" . &scrunch($template{$fname})
+ print "\$${mname}'typedef = '" . &scrunch($template{$fname})
. "';\n";
print "\$${mname}'sizeof = $sizeof{$name};\n\n";
$template_printed{$fname}++;
$size_printed{$fname}++;
- }
+ }
print "\n";
}
print STDERR "\n" if $trace;
- unless ($perl && $opt_a) {
+ unless ($perl && $opt_a) {
print "\n1;\n" if $perl;
exit;
}
}
print "\n1;\n" if $perl;
-
+
exit;
}
- if (/(([ \w]+):t(\d+|\(\d+,\d+\)))=r?(\d+|\(\d+,\d+\))(;\d+;\d+;)?/) {
+ if (/(([ \w]+):t(\d+|\(\d+,\d+\)))=r?(\d+|\(\d+,\d+\))(;\d+;\d+;)?/) {
local($ident) = $2;
push(@intrinsics, $ident);
$typeno = &typeno($3);
$type[$typeno] = $ident;
- print STDERR "intrinsic $ident in new type $typeno\n" if $debug;
+ print STDERR "intrinsic $ident in new type $typeno\n" if $debug;
next;
}
- if (($name, $typeordef, $typeno, $extra, $struct, $_)
- = /^([\$ \w]+):([ustT])(\d+|\(\d+,\d+\))(=[rufs*](\d+))?(.*)$/)
+ if (($name, $typeordef, $typeno, $extra, $struct, $_)
+ = /^([\$ \w]+):([ustT])(\d+|\(\d+,\d+\))(=[rufs*](\d+))?(.*)$/)
{
$typeno = &typeno($typeno); # sun foolery
- }
+ }
elsif (/^[\$\w]+:/) {
next; # variable
}
- else {
+ else {
warn "can't grok stab: <$_> in: $line " if $_;
next;
- }
+ }
#warn "got size $size for $name\n";
$sizeof{$name} = $size if $size;
} else {
printf "%s is type %d", $name, $typeno if $debug;
print ", a typedef for " , $type[$typeno] if $debug;
- }
+ }
print "\n" if $debug;
#next unless $extra =~ /[su*]/;
push(@intrinsics, $2);
$typeno = &typeno($3);
$type[$typeno] = $2;
- print STDERR "intrinsic $2 in new type $typeno\n" if $debug;
+ print STDERR "intrinsic $2 in new type $typeno\n" if $debug;
}
elsif (s/^=e//) { # blessed be thy compiler; mine won't do this
&edecl;
- }
+ }
else {
warn "Funny remainder for $name on line $_ left in $line " if $_;
- }
+ }
}
sub typeno { # sun thinks types are (0,27) instead of just 27
local($_) = @_;
s/\(\d+,(\d+)\)/$1/;
$_;
-}
+}
sub pstruct {
- local($what,$prefix,$base) = @_;
- local($field, $fieldname, $typeno, $count, $offset, $entry);
+ local($what,$prefix,$base) = @_;
+ local($field, $fieldname, $typeno, $count, $offset, $entry);
local($fieldtype);
- local($type, $tname);
+ local($type, $tname);
local($mytype, $mycount, $entry2);
local($struct_count) = 0;
local($pad, $revpad, $length, $prepad, $lastoffset, $lastlength, $fmt);
local($mname) = &munge($name);
- sub munge {
+ sub munge {
local($_) = @_;
s/[\s\$\.]/_/g;
$_;
for $field (split(/;/, $struct{$what})) {
$pad = $prepad = 0;
- $entry = '';
- ($fieldname, $typeno, $count, $offset, $length) = split(/,/, $field);
+ $entry = '';
+ ($fieldname, $typeno, $count, $offset, $length) = split(/,/, $field);
$type = $type[$typeno];
if ($build_templates) {
- $pad = ($offset - ($lastoffset + $lastlength))/8
+ $pad = ($offset - ($lastoffset + $lastlength))/8
if defined $lastoffset;
if (! $finished_template{$sname}) {
($lastoffset, $lastlength) = ($offset, $length);
- } else {
+ } else {
print '# ' if $perl && $verbose;
$entry = sprintf($pmask1,
' ' x ($nesting * $indent) . $fieldtype,
- "$prefix.$fieldname" . $count);
+ "$prefix.$fieldname" . $count);
- $entry =~ s/(\*+)( )/$2$1/;
+ $entry =~ s/(\*+)( )/$2$1/;
printf $pmask2,
$entry,
print "\n" if !$perl || $verbose;
- }
+ }
if ($perl) {
local($mycount) = defined $struct{$mytype} ? $countof{$mytype} : 1;
$mycount *= &scripts2count($count) if $count;
if ($nesting==1 && !$build_templates) {
- $pcode .= sprintf("sub %-32s { %4d; }\n",
+ $pcode .= sprintf("sub %-32s { %4d; }\n",
"${mname}'${fieldname}", $struct_count);
push(@indices, $struct_count);
}
$struct_count += $mycount;
- }
+ }
- &pstruct($type, "$prefix.$fieldname", $base+$offset)
- if $recurse && defined $struct{$type};
+ &pstruct($type, "$prefix.$fieldname", $base+$offset)
+ if $recurse && defined $struct{$type};
}
$countof{$what} = $struct_count unless defined $countof{$whati};
} else {
print STDERR $sizeof{$name}, "\n" if $debUg;
}
- }
+ }
--$nesting;
}
sub psize {
- local($me) = @_;
+ local($me) = @_;
local($amstruct) = $struct{$me} ? 'struct ' : '';
- print '$sizeof{\'', $amstruct, $me, '\'} = ';
- printf "%d;\n", $sizeof{$me};
+ print '$sizeof{\'', $amstruct, $me, '\'} = ';
+ printf "%d;\n", $sizeof{$me};
}
sub pdecl {
warn "pdecl: $pdecl\n" if $debug;
$pdecl =~ s/\(\d+,(\d+)\)/$1/g;
- $pdecl =~ s/\*//g;
- @pdecls = split(/=/, $pdecl);
+ $pdecl =~ s/\*//g;
+ @pdecls = split(/=/, $pdecl);
$typeno = $pdecls[0];
$tname = pop @pdecls;
- if ($tname =~ s/^f//) { $tname = "$tname&"; }
- #else { $tname = "$tname*"; }
+ if ($tname =~ s/^f//) { $tname = "$tname&"; }
+ #else { $tname = "$tname*"; }
for (reverse @pdecls) {
- $tname .= s/^f// ? "&" : "*";
+ $tname .= s/^f// ? "&" : "*";
#$tname =~ s/^f(.*)/$1&/;
print "type[$_] is $tname\n" if $debug;
$type[$_] = $tname unless defined $type[$_];
- }
+ }
}
local($_, $typedef) = @_;
while (s/^((\d+|\(\d+,\d+\))=)?ar(\d+|\(\d+,\d+\));//) {
- ($arraytype, $unknown) = ($2, $3);
+ ($arraytype, $unknown) = ($2, $3);
$arraytype = &typeno($arraytype);
$unknown = &typeno($unknown);
if (s/^(\d+);(\d+);//) {
- ($lower, $upper) = ($1, $2);
- $scripts .= '[' . ($upper+1) . ']';
+ ($lower, $upper) = ($1, $2);
+ $scripts .= '[' . ($upper+1) . ']';
} else {
- warn "can't find array bounds: $_";
- }
+ warn "can't find array bounds: $_";
+ }
}
if (s/^([(,)\d*f=]*),(\d+),(\d+);//) {
- ($start, $length) = ($2, $3);
+ ($start, $length) = ($2, $3);
$whatis = $1;
if ($whatis =~ /^(\d+|\(\d+,\d+\))=/) {
$typeno = &typeno($1);
$typeno = &typeno($whatis);
}
} elsif (s/^(\d+)(=[*suf]\d*)//) {
- local($whatis) = $2;
+ local($whatis) = $2;
if ($whatis =~ /[f*]/) {
- &pdecl($whatis);
- } elsif ($whatis =~ /[su]/) { #
- print "$prefix.$fieldname is an array$scripts anon structs; disgusting\n"
+ &pdecl($whatis);
+ } elsif ($whatis =~ /[su]/) { #
+ print "$prefix.$fieldname is an array$scripts anon structs; disgusting\n"
if $debug;
#$type[$typeno] = $name unless defined $type[$typeno];
##printf "new type $typeno is $name" if $debug;
$length = $offset;
} else {
warn "what's this? $whatis in $line ";
- }
+ }
} elsif (/^\d+$/) {
$typeno = $_;
} else {
warn "bad array stab: $_ in $line ";
next STAB;
- }
+ }
#local($wasdef) = defined($type[$typeno]) && $debug;
- #if ($typedef) {
+ #if ($typedef) {
#print "redefining $type[$typeno] to " if $wasdef;
#$type[$typeno] = "$whatis$scripts"; # unless defined $type[$typeno];
#print "$type[$typeno]\n" if $wasdef;
while (/^([^;]+);/) {
$scripts = '';
warn "sdecl $_\n" if $debug;
- if (s/^([\$\w]+)://) {
+ if (s/^([\$\w]+)://) {
$fieldname = $1;
- } elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { #
+ } elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { #
$typeno = &typeno($1);
$type[$typeno] = "$prefix.$fieldname";
local($name) = "$prefix.$fieldname";
$typeno = &typeno($1) if $1;
}
elsif (s/^(\d+)=xs\w+:,(\d+),(\d+);//) {
- ($start, $length) = ($2, $3);
+ ($start, $length) = ($2, $3);
&panic("no length?") unless $length;
$typeno = &typeno($1) if $1;
}
elsif (s/^((\d+|\(\d+,\d+\))(=[*f](\d+|\(\d+,\d+\)))+),(\d+),(\d+);//) {
- ($pdecl, $start, $length) = ($1,$5,$6);
- &pdecl($pdecl);
+ ($pdecl, $start, $length) = ($1,$5,$6);
+ &pdecl($pdecl);
}
elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { # the dratted anon struct
($typeno, $sou) = ($1, $2);
&sou($name,$sou);
print "anon ".($isastruct{$name}) ? "struct":"union"." for $prefix.$fieldname\n" if $debug;
$type[$typeno] = "$prefix.$fieldname";
- $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset);
+ $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset);
$start = $start{$name};
$length = $sizeof{$name};
}
else {
- warn "can't grok stab for $name ($_) in line $line ";
- next STAB;
+ warn "can't grok stab for $name ($_) in line $line ";
+ next STAB;
}
&panic("no length for $prefix.$fieldname") unless $length;
$struct{$name} .= join(',', $fieldname, $typeno, $scripts, $start, $length) . ';';
}
if (s/;\d*,(\d+),(\d+);//) {
- local($start, $size) = ($1, $2);
+ local($start, $size) = ($1, $2);
$sizeof{$prefix} = $size;
- print "start of $prefix is $start, size of $sizeof{$prefix}\n" if $debug;
- $start{$prefix} = $start;
- }
+ print "start of $prefix is $start, size of $sizeof{$prefix}\n" if $debug;
+ $start{$prefix} = $start;
+ }
$_;
}
s/;$//;
$enum{$name} = $_;
$_ = '';
-}
+}
sub resolve_types {
local($sou);
}
print "type[$i] $_ ==> " if $debug;
s/^(\d+)(\**)\&\*(\**)/"$2($3".&type($1) . ')()'/e;
- s/^(\d+)\&/&type($1)/e;
- s/^(\d+)/&type($1)/e;
+ s/^(\d+)\&/&type($1)/e;
+ s/^(\d+)/&type($1)/e;
s/(\*+)([^*]+)(\*+)/$1$3$2/;
s/\((\*+)(\w+)(\*+)\)/$3($1$2)/;
s/^(\d+)([\*\[].*)/&type($1).$2/e;
print "$_\n" if $debug;
}
}
-sub type { &psou($type[$_[0]] || "<UNDEFINED>"); }
+sub type { &psou($type[$_[0]] || "<UNDEFINED>"); }
sub adjust_start_addrs {
for (sort keys %start) {
$scrunch_code = "sub quick_scrunch {\n";
for (values %intrinsics) {
$scrunch_code .= "\ts/(${_}{2,})/'$_' . length(\$1)/ge;\n";
- }
+ }
$scrunch_code .= "}\n";
print "$scrunch_code" if $debug;
eval $scrunch_code;
&panic("can't eval scrunch_code $@ \nscrunch_code") if $@;
-}
+}
sub fetch_template {
local($mytype) = @_;
if ($mytype =~ s/(\[\d+\])+$//) {
$count .= $1;
- }
+ }
if ($mytype =~ /\*/) {
$fmt = $template{'pointer'};
- }
+ }
elsif (defined $template{$mytype}) {
$fmt = $template{$mytype};
- }
+ }
elsif (defined $struct{$mytype}) {
if (!defined $template{&psou($mytype)}) {
&build_template($mytype) unless $mytype eq $name;
- }
+ }
elsif ($template{&psou($mytype)} !~ /\$$/) {
#warn "incomplete template for $mytype\n";
- }
+ }
$fmt = $template{&psou($mytype)} || '?';
- }
+ }
else {
warn "unknown fmt for $mytype\n";
$fmt = '?';
- }
+ }
$fmt x $count . ' ';
}
sub compute_intrinsics {
- local($TMP) = "/tmp/c2ph-i.$$.c";
+ &safedir;
+ local($TMP) = "$SAFEDIR/c2ph-i.$$.c";
open (TMP, ">$TMP") || die "can't open $TMP: $!";
select(TMP);
EOF
for $type (@intrinsics) {
- next if !type || $type eq 'void' || $type =~ /complex/; # sun stuff
+ next if !$type || $type eq 'void' || $type =~ /complex/; # sun stuff
print <<"EOF";
printf(mask,sizeof($type), "$type");
EOF
- }
+ }
print <<'EOF';
printf(mask,sizeof(char *), "pointer");
close TMP;
select(STDOUT);
- open(PIPE, "cd /tmp && $CC $TMP && /tmp/a.out|");
+ open(PIPE, "cd $SAFEDIR && $CC $TMP && $SAFEDIR/a.out|");
while (<PIPE>) {
chop;
split(' ',$_,2);;
print "intrinsic $_[1] is size $_[0]\n" if $debug;
$sizeof{$_[1]} = $_[0];
$intrinsics{$_[1]} = $template{$_[0]};
- }
+ }
close(PIPE) || die "couldn't read intrinsics!";
- unlink($TMP, '/tmp/a.out');
+ unlink($TMP, '$SAFEDIR/a.out');
print STDERR "done\n" if $trace;
-}
+}
sub scripts2count {
local($_) = @_;
sub system {
print STDERR "@_\n" if $trace;
system @_;
-}
+}
-sub build_template {
+sub build_template {
local($name) = @_;
&panic("already got a template for $name") if defined $template{$name};
print $sub[$i];
}
exit 1;
-}
+}
sub squishseq {
local($num);
sub repeat_template {
# local($template, $scripts) = @_; have to change caller's values
- if ( $_[1] ) {
+ if ( $_[1] ) {
local($ncount) = &scripts2count($_[1]);
if ($_[0] =~ /^\s*c\s*$/i) {
$_[0] = "A$ncount ";
close OUT or die "Can't close $file: $!";
chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
unlink 'pstruct';
-link c2ph, pstruct;
+print "Linking c2ph to pstruct.\n";
+if (defined $Config{d_link}) {
+ link 'c2ph', 'pstruct';
+} else {
+ unshift @INC, '../lib';
+ require File::Copy;
+ File::Copy::syscopy('c2ph', 'pstruct');
+}
exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
+chdir $origdir;
https://perl5.git.perl.org / perl5.git / blobdiff