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@ -31,7 +31,9 @@ package Yard; |
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use vars qw(@ISA @EXPORT %EXPORT_TAGS); |
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use Exporter; |
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@ISA = qw(Exporter); |
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@EXPORT = qw(); |
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@EXPORT = qw(kernel_version_check read_contents_file extra_links |
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library_dependencies hard_links space_check |
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create_filesytem); |
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use strict; |
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use File::Basename; |
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@ -39,75 +41,23 @@ use File::Path; |
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use FileHandle; |
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use Cwd; # I am not even sure if this is being used here now |
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use English; # I think this can be ditched for portability |
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#use lib "@config_dest@", "@lib_dest@"; |
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#use yardconfig;# this exports these things $scripts_dest |
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# $lib_dest $config_dest %_path |
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use File::Find; # used by check_root_fs |
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# YARDCONFIG.PM |
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########################################## |
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########################################## |
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#$scripts_dest = "@scripts_dest@"; |
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#$lib_dest = "@lib_dest@"; |
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#$config_dest = "@config_dest@"; |
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#unshift(@::INC, $config_dest); |
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# Ironically this is only used once for objcopy. |
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#%_path =( 'perl' => '@PERL@', |
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# 'ldd' => '@LDD@', |
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# 'ldconfig' => '@LDCONFIG@', |
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# 'chroot' => '@CHROOT@', |
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# 'sync' => '@SYNC@', |
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# 'mount' => '@MOUNT@', |
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# 'umount' => '@UMOUNT@', |
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# 'rm' => '@RM@', |
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# 'dd' => '@DD@', |
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# 'mke2fs' => '@MKE2FS@', |
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# 'rdev' => '@RDEV@', |
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# 'gzip' => '@GZIP@', |
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# 'uname' => '@UNAME@', |
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# 'objcopy' => '@OBJCOPY@' |
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# ); |
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############################################ |
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############################################ |
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# Probably will make this local .. actually don't need them |
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# FROM YARD_UTILS.PL |
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# constant.pm not introduced until 5.003_96, so these are |
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# just global variables. |
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# Constants from /usr/src/linux/arch/i386/kernel/setup.c: |
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#$::RAMDISK_IMAGE_START_MASK = 0x07FF; |
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#$::RAMDISK_PROMPT_FLAG = 0x8000; |
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#$::RAMDISK_LOAD_FLAG = 0x4000; |
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# ioctls from /usr/include/linux/fs.h: |
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#$::BLKGETSIZE_ioctl = 4704; |
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#$::BLKFLSBUF_ioctl = 4705; |
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# ext2 fs constants, both in bytes |
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#$::EXT2_BLOCK_SIZE = 1024; |
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#$::INODE_SIZE = 1024; |
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########################## |
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########################### |
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# BEGIN { require "yard_utils.pl"; } |
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# Supplied by gBootroot |
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#require "Config.pl"; |
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my (%Included, %replaced_by, %links_to, %is_module, %hardlinked, |
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%strippable, %lib_needed_by, @Libs); |
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my $cf_line = 0; |
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my $BLKGETSIZE_ioctl = 4704; |
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my $BLKFLSBUF_ioctl = 4705; |
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my $EXT2_BLOCK_SIZE = 1024; |
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my $INODE_SIZE = 1024; |
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my $objcopy = "objcopy"; |
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STDOUT->autoflush(1); |
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start_logging_output(); |
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info(0, "root_fs\n"); |
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info(1, "(running under Perl $PERL_VERSION)\n"); |
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#@@ start_logging_output(); |
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#my($objcopy) = $_path{'objcopy'}; # Define objcopy path if executable exists |
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my $objcopy = "objcopy"; |
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#@@ info(0, "root_fs\n"); |
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#@@ info(1, "(running under Perl $PERL_VERSION)\n"); |
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my($Warnings) = 0; |
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sub warning { |
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@ -144,40 +94,67 @@ sub warning { |
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# gBootRoot, but it may be restrictive since sometimes it is a |
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# good thing to mount a whole device .. cdroms for instance. |
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# Check for sane device choice before we start using it. |
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check_device(); |
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#@@ check_device(); |
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# Make sure $::device isn't already mounted and $::mount_point is free |
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load_mount_info(); |
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#@@ load_mount_info(); |
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## This is put here for reference, and is from Config.pl |
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## loopback is the standard for building a filesytem in gBootRoot. |
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## No choice here. |
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# $device: string (device name) |
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# |
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# The device for building the filesystem. This can be /dev/ram0 or a |
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# spare partition. You can turn off swapping temporarily and use the |
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# swap partition on your hard disk. You can use a loopback device if |
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# your kernel supports them -- see the section "Using a Loopback |
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# Device" in the Yard documentation for instructions. |
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# It should not be a symbolic link. |
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# |
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#$device = "/dev/ram0"; |
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#if (defined($::mounted{$::device})) { |
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# if ($::mounted{$::device} eq $::mount_point) { |
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# #info(1, "Device $::device is already mounted on $::mount_point\n"); |
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# info(1, "Unmounting it automatically.\n"); |
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# sys("umount $::mount_point"); |
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if (defined($::mounted{$::device})) { |
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if ($::mounted{$::device} eq $::mount_point) { |
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#info(1, "Device $::device is already mounted on $::mount_point\n"); |
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info(1, "Unmounting it automatically.\n"); |
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sys("umount $::mount_point"); |
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# } else { |
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# error("$::device is already mounted elsewhere (on $::mounted{$::device})\n", |
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# "Unmount it first.\n"); |
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# } |
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} else { |
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error("$::device is already mounted elsewhere (on $::mounted{$::device})\n", |
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"Unmount it first.\n"); |
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} |
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#} elsif (defined($::mounted{$::mount_point})) { |
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# error("Some other device is already mounted on $::mount_point\n"); |
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#} |
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} elsif (defined($::mounted{$::mount_point})) { |
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error("Some other device is already mounted on $::mount_point\n"); |
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} |
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# Have to test this every time so we can work around. |
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test_glob(); |
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## This will get replaced with a readdir loop, no sense relying on people's |
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## shells. Anotherwards, yard_glob get changed. |
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#@@ test_glob(); |
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##### Determine release of $::kernel for modules. |
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##### Set RELEASE environment variable for use in contents. |
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## Still need an option for this, may become part of beginners section. |
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## uses kernel_version .. will probably just run these in relation to |
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## gBootRoots checks. |
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## 'use Yard; $kernel = "/root/HDB/vmlinuz-2.2.14-ncr"; $kernel_version = "1.2"; kernel_version_check(); |
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## requires $kernel && $kernel_version |
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sub kernel_version_check { |
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if (defined($::kernel_version)) { |
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# Check to see if it agrees |
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my($version_guess) = kernel_version($::kernel); |
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if ($version_guess ne $::kernel_version) { |
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# info(0, |
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# "You declared kernel ($::kernel) to be version $::kernel_version\n", |
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# "\teven though a probe says $version_guess.", |
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# "\tI'll assume you're right.\n";) |
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## Is this really necessary, it can be assumed a person knows |
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## what they are doing. |
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info(0, |
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"You declared kernel $::kernel to be version $::kernel_version\n", |
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"even though a probe says $version_guess.", |
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" I'll assume you're right.\n") |
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} |
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$ENV{'RELEASE'} = $::kernel_version; |
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@ -197,29 +174,41 @@ if (defined($::kernel_version)) { |
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} |
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} |
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warn_about_module_dependencies($ENV{'RELEASE'}); |
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} # end sub kernel_version |
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if ($::disk_set !~ /^(single|double|base\+extra)$/) { |
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error("Config variable disk_set is set to \"$::disk_set\"\n", |
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"which is not a valid value.\n"); |
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} |
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## This checks lib/modules/$version for rd.o, ext2.o, floppy.o |
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## Perhaps just extra stuff, this could be made real fancy, too. |
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#@@warn_about_module_dependencies($ENV{'RELEASE'}); |
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## gBootRoot does this as a separate process |
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#if ($::disk_set !~ /^(single|double|base\+extra)$/) { |
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# error("Config variable disk_set is set to \"$::disk_set\"\n", |
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# "which is not a valid value.\n"); |
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#} |
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############################ |
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##### READ IN CONTENTS FILE |
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############################ |
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## uses info, resolve_file, error, cf_warn, make_link_absolute, |
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## make_link_relative, cf_die, must_be_abs, replaced_by, yard_glob, |
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## include_file |
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## requires $contents_file |
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sub read_contents_file { |
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############################################################################## |
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##### READ IN CONTENTS FILE ##### |
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############################################################################## |
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my($contents_file) = resolve_file($::contents_file); |
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info(0, "\n\nPASS 1: Reading $::contents_file"); |
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#info 0, " ($contents_file)" if $contents_file ne $::contents_file; |
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info(0, "\n"); |
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my(%Included); |
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my(%replaced_by); |
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my(%links_to); |
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my(%is_module); |
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#my(%Included); |
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#my(%replaced_by); |
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#my(%links_to); |
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#my(%is_module); |
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open(CONTENTS, "<$contents_file") or error("$contents_file: $!"); |
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my($cf_line) = 0; |
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my($line); |
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LINE: while (defined($line = <CONTENTS>)) { |
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@ -232,11 +221,6 @@ LINE: while (defined($line = <CONTENTS>)) { |
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$line =~ s/^\s+//; # Delete leading/trailing whitespace |
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$line =~ s/\s+$//; |
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# if ($line =~ /\$RELEASE/) { |
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# cf_warn($line, "Make sure \$RELEASE ($ENV{'RELEASE'}) is correct " . |
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# "for $::kernel"); |
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# } |
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if ($line =~ /->/) { ##### EXPLICIT LINK |
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if ($line =~ /[\*\?\[]/) { |
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cf_warn($line, "Can't use wildcards in link specification!"); |
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@ -346,14 +330,20 @@ LINE: while (defined($line = <CONTENTS>)) { |
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info(0, "\nDone with $contents_file\n\n"); |
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if ($::disk_set eq "base+extra") { |
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include_file(find_file_in_path("tar")) |
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} |
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##if ($::disk_set eq "base+extra") { |
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## include_file(find_file_in_path("tar")) |
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##} |
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close(CONTENTS) or error("close on $contents_file: $!"); |
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## may or may not include this in read_contents_file |
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} # end read_contents_file |
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##################################### |
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sub extra_links { |
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############################################################################## |
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info(0, "\n\nPASS 2: Picking up extra files from links...\n"); |
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for (keys %Included) { |
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@ -361,8 +351,12 @@ for (keys %Included) { |
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} |
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info(0, "Done.\n\n"); |
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} |
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############################################################################## |
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##################################### |
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sub library_dependencies { |
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info(0, "PASS 3: Checking library dependencies...\n"); |
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info(1, "(Ignore any 'statically linked' messages.)\n"); |
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@ -371,9 +365,6 @@ info(1, "(Ignore any 'statically linked' messages.)\n"); |
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# X -> Y: X in %links_to, Y in %Included |
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# X <= Y: X in %Included and %replaced_by |
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my(%strippable); |
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my(%lib_needed_by); |
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my($file); |
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foreach $file (keys %Included) { |
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@ -408,6 +399,7 @@ foreach $file (keys %Included) { |
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##### EXECUTABLE LOADABLE BINARY |
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##### Run ldd to get library dependencies. |
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my $line; |
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foreach $line (`ldd $file`) { |
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my($lib) = $line =~ / => (\S+)/; |
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next unless $lib; |
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@ -446,10 +438,10 @@ foreach $file (keys %Included) { |
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} |
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} |
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############################################################################## |
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##### Check libraries and loader(s) ##### |
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############################################################################## |
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my(@Libs) = keys %lib_needed_by; |
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#################################### |
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##### Check libraries and loader(s) |
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#################################### |
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(@Libs) = keys %lib_needed_by; |
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my($seen_ELF_lib, $seen_AOUT_lib); |
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my(%full_name); |
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@ -484,7 +476,7 @@ if (@Libs) { |
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} |
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$line .= $binary . " "; |
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} |
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#info(1, $line, "\n" if $line); |
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##info(1, $line, "\n" if $line); |
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if (!($seen_ELF_lib and $seen_AOUT_lib)) { |
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@ -544,10 +536,15 @@ if ($seen_AOUT_lib) { |
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info(0, "Done\n\n"); |
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} # end sub library_dependencies |
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sub hard_links { |
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info(0, "PASS 4: Recording hard links...\n"); |
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##### Finally, scan all files for hard links. |
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my(%hardlinked); |
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my($file); |
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foreach $file (keys %Included) { |
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next if $links_to{$file} or $replaced_by{$file}; |
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@ -564,11 +561,17 @@ foreach $file (keys %Included) { |
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info(0, "Done.\n\n"); |
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############################################################################## |
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} # end sub hard_links |
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########################## |
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sub space_check { |
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info(0, "Checking space needed.\n"); |
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my($total_bytes) = 0; |
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my(%counted); |
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my ($file); |
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foreach $file (keys %Included) { |
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my($replacement, $devino); |
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@ -600,8 +603,8 @@ foreach $file (keys %Included) { |
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} |
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} elsif (-d $file) { |
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$total_bytes += $::INODE_SIZE; |
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info(1, "Directory $file = ", $::INODE_SIZE, " bytes\n"); |
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$total_bytes += $INODE_SIZE; |
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info(1, "Directory $file = ", $INODE_SIZE, " bytes\n"); |
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} elsif ($file =~ m|^/proc/|) { |
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##### /proc files screw us up (eg, /proc/kcore), and there's no |
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@ -631,14 +634,22 @@ if (bytes_to_K($total_bytes) > $::fs_size) { |
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info(0, "\n"); |
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############################################################################## |
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} # end sub space_check |
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####################### |
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##### Create filesystem |
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############################################################################## |
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sync(); |
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sys("dd if=/dev/zero of=$::device bs=1k count=$::fs_size"); |
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sync(); |
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######################## |
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#@@sync(); |
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#@@sys("dd if=/dev/zero of=$::device bs=1k count=$::fs_size"); |
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#@@sync(); |
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#info(0, "Creating ${::fs_size}K ext2 file system on $::device\n"); |
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# This could be broken up into a lot of functions |
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sub create_filesystem { |
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my $file; |
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##info(0, "Creating ${::fs_size}K ext2 file system on $::device\n"); |
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if (-f $::device) { |
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##### If device is a plain file, it means we're using some loopback |
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@ -654,7 +665,6 @@ sys("rm -rf $::mount_point/lost+found"); |
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sync(); |
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##### Setting up the file structure is tricky. Given a tangled set |
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##### of symbolic links and directories, we have to create the |
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##### directories, symlinks and files in the right order so that no |
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@ -712,7 +722,6 @@ info(0, "\nCopying files to $::device\n"); |
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my(%copied); |
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my($file); |
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while (($file) = each %Included) { |
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my($floppy_file) = $::mount_point . $file; |
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@ -769,8 +778,6 @@ while (($file) = each %Included) { |
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} |
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############################################################################## |
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info(0, "\nFinished creating root filesystem.\n"); |
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if (@Libs) { |
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@ -786,7 +793,8 @@ info(0, "\nDone with $PROGRAM_NAME. $Warnings warnings.\n", |
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exit( $Warnings>0 ? -1 : 0); |
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} # end sub create_filesystem |
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############################################################################# |
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##### Utility subs for make_root_fs.pl |
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############################################################################# |
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@ -900,15 +908,14 @@ sub copy_strip_file { |
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############################################################## |
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############################################################## |
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############################################################## |
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############################################################### |
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############################################################### |
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############################################################################## |
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######################################################## |
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## |
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## YARD_UTILS.PL -- Utilities for the Yard scripts. |
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## |
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############################################################################## |
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######################################################## |
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# Get device number of /proc filesystem |
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@ -1124,7 +1131,7 @@ sub get_device_size_K { |
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my($result) = pack("L", 0); |
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open(FD, $device) or die "open($device): $!"; |
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my($return) = ioctl(FD, $::BLKGETSIZE_ioctl, $result); |
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my($return) = ioctl(FD, $BLKGETSIZE_ioctl, $result); |
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close(FD); |
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if ($return) { |
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my($bytes) = unpack("L", $result) * $DEV_BSIZE; |
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@ -1147,7 +1154,7 @@ sub flush_device_buffer_cache { |
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my($device) = @_; |
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my($junk) = "stuff"; |
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open(FD, $device) && ioctl(FD, $::BLKFLSBUF_ioctl, $junk); |
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open(FD, $device) && ioctl(FD, $BLKFLSBUF_ioctl, $junk); |
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close(FD); |
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} |
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@ -1243,7 +1250,7 @@ sub kernel_version { |
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# it can also be something like 2.2.15-27mdk. Don't make any assumptions |
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# except that beginning must be dotted triple and it's space delimited. |
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my($version) = $str =~ /^(\d+\.\d+\.\d+\S*)\s/; |
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$version |
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return $version |
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} |
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} |
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@ -1378,10 +1385,10 @@ sub bytes_allocated { |
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my($size) = -s $file; |
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if ($size % $::EXT2_BLOCK_SIZE == 0) { |
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if ($size % $EXT2_BLOCK_SIZE == 0) { |
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$size |
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} else { |
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(int($size / $::EXT2_BLOCK_SIZE) + 1) * $::EXT2_BLOCK_SIZE |
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(int($size / $EXT2_BLOCK_SIZE) + 1) * $EXT2_BLOCK_SIZE |
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} |
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} |
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@ -1976,4 +1983,4 @@ sub check_termcap { |
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} |
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##### END OF CHECK_ROOT_FS |
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=end |
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=cut |
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