108 lines
3.3 KiB
Perl
108 lines
3.3 KiB
Perl
#!/usr/bin/perl -w
|
|
#
|
|
# Copyright (c) 2001 The FreeBSD Project
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions
|
|
# are met:
|
|
# 1. Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# 2. Redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
# SUCH DAMAGE.
|
|
#
|
|
# From src/usr.bin/gensetdefs/gensetdefs.c,v 1.6 2000/09/29 13:29:43 dfr
|
|
#
|
|
# $FreeBSD$
|
|
|
|
use strict;
|
|
|
|
my %logalign = (4 => 2, 8 => 3);
|
|
my %datadecl = (4 => ".long", 8 => ".quad");
|
|
my %sets = ();
|
|
my $pointersize = 0;
|
|
my $objdump = $ENV{'OBJDUMP'} || 'objdump';
|
|
|
|
# Run objdump over each object file to find all defined linker sets.
|
|
# Linker sets are sections with names starting with `.set.'
|
|
foreach my $objfile (@ARGV) {
|
|
open(SECTION, "$objdump -h $objfile |") or die;
|
|
while (<SECTION>) {
|
|
my ($index, $name, $size, $vma, $lma, $offset, $align) = split;
|
|
|
|
next unless $name;
|
|
|
|
if ($name =~ /^.set./) {
|
|
$name =~ s/^.set.//;
|
|
$sets{$name} ||= 0;
|
|
$sets{$name} += hex "0x$size";
|
|
|
|
# Assume the size of a pointer is equal to it's alignment
|
|
# and thus the alignment of the section.
|
|
if ($pointersize < eval $align) {
|
|
$pointersize = eval $align;
|
|
}
|
|
}
|
|
}
|
|
close SECTION;
|
|
}
|
|
|
|
# Generate our list of set definitions
|
|
my @setdefs;
|
|
while (my ($name, $size) = each %sets) {
|
|
my $elements = $size / $pointersize;
|
|
push @setdefs, "DEFINE_SET($name, $elements);\n";
|
|
}
|
|
|
|
# Create setdefs.h
|
|
open(SETDEFS_H, "> setdefs.h") or die;
|
|
print SETDEFS_H sort @setdefs;
|
|
close SETDEFS_H;
|
|
|
|
# Create setdef0.c
|
|
open(SETDEF0_C, "> setdef0.c") or die;
|
|
print SETDEF0_C <<END;
|
|
/* This file is generated by $0, do not edit. */
|
|
|
|
#define DEFINE_SET(set, count) \\
|
|
__asm__(".section .set." #set ",\\"aw\\""); \\
|
|
__asm__(".globl " #set); \\
|
|
__asm__(".type " #set ",\@object"); \\
|
|
__asm__(".p2align $logalign{$pointersize}"); \\
|
|
__asm__(#set ":"); \\
|
|
__asm__("$datadecl{$pointersize} " #count); \\
|
|
__asm__(".previous")
|
|
|
|
#include "setdefs.h"
|
|
END
|
|
close SETDEF0_C;
|
|
|
|
# Create setdef1.c
|
|
open(SETDEF1_C, "> setdef1.c") or die;
|
|
print SETDEF1_C <<END;
|
|
/* This file is generated by $0, do not edit. */
|
|
|
|
#define DEFINE_SET(set, count) \\
|
|
__asm__(".section .set." #set ",\\"aw\\""); \\
|
|
__asm__("$datadecl{$pointersize} 0"); \\
|
|
__asm__(".previous")
|
|
|
|
#include "setdefs.h"
|
|
END
|
|
close SETDEF1_C;
|
|
|
|
exit;
|