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hvsupport: Introduce parseSymsFile

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The code for parsing the different public syms files only differs
in the filenames and version prefix.

Unify it to a single subroutine.
This commit is contained in:
Ján Tomko 2016-06-28 12:37:50 +02:00
parent f820d5bf6f
commit fa0b00f94e
1 changed files with 55 additions and 123 deletions
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178
docs/hvsupport.pl
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@ -44,136 +44,66 @@ find({
push @srcs, $_ if $_ !~ /vbox_driver\.c/;
}
}, no_chdir => 1}, $srcdir);
my $line;
# Get the list of all public APIs and their corresponding version
sub parseSymsFile {
my $apisref = shift;
my $prefix = shift;
my $filename = shift;
my $xmlfilename = shift;
my $line;
my $vers;
my $prevvers;
my $apixpath = XML::XPath->new(filename => $xmlfilename);
open FILE, "<$filename"
or die "cannot read $filename: $!";
while (defined($line = <FILE>)) {
chomp $line;
next if $line =~ /^\s*#/;
next if $line =~ /^\s*$/;
next if $line =~ /^\s*(global|local):/;
if ($line =~ /^\s*${prefix}_(\d+\.\d+\.\d+)\s*{\s*$/) {
if (defined $vers) {
die "malformed syms file";
}
$vers = $1;
} elsif ($line =~ /\s*}\s*;\s*$/) {
if (defined $prevvers) {
die "malformed syms file";
}
$prevvers = $vers;
$vers = undef;
} elsif ($line =~ /\s*}\s*${prefix}_(\d+\.\d+\.\d+)\s*;\s*$/) {
if ($1 ne $prevvers) {
die "malformed syms file $1 != $vers";
}
$prevvers = $vers;
$vers = undef;
} elsif ($line =~ /\s*(\w+)\s*;\s*$/) {
my $file = $apixpath->find("/api/symbols/function[\@name='$1']/\@file");
$$apisref{$1} = {};
$$apisref{$1}->{vers} = $vers;
$$apisref{$1}->{file} = $file;
} else {
die "unexpected data $line\n";
}
}
close FILE;
}
my %apis;
open FILE, "<$symslibvirt"
or die "cannot read $symslibvirt: $!";
my $vers;
my $prevvers;
my $apixpath = XML::XPath->new(filename => "$srcdir/../docs/libvirt-api.xml");
while (defined($line = <FILE>)) {
chomp $line;
next if $line =~ /^\s*#/;
next if $line =~ /^\s*$/;
next if $line =~ /^\s*(global|local):/;
if ($line =~ /^\s*LIBVIRT_(\d+\.\d+\.\d+)\s*{\s*$/) {
if (defined $vers) {
die "malformed syms file";
}
$vers = $1;
} elsif ($line =~ /\s*}\s*;\s*$/) {
if (defined $prevvers) {
die "malformed syms file";
}
$prevvers = $vers;
$vers = undef;
} elsif ($line =~ /\s*}\s*LIBVIRT_(\d+\.\d+\.\d+)\s*;\s*$/) {
if ($1 ne $prevvers) {
die "malformed syms file $1 != $vers";
}
$prevvers = $vers;
$vers = undef;
} elsif ($line =~ /\s*(\w+)\s*;\s*$/) {
my $file = $apixpath->find("/api/symbols/function[\@name='$1']/\@file");
$apis{$1} = {};
$apis{$1}->{vers} = $vers;
$apis{$1}->{file} = $file;
} else {
die "unexpected data $line\n";
}
}
close FILE;
# Get the list of all public APIs and their corresponding version
parseSymsFile(\%apis, "LIBVIRT", $symslibvirt, "$srcdir/../docs/libvirt-api.xml");
# And the same for the QEMU specific APIs
open FILE, "<$symsqemu"
or die "cannot read $symsqemu: $!";
$prevvers = undef;
$vers = undef;
$apixpath = XML::XPath->new(filename => "$srcdir/../docs/libvirt-qemu-api.xml");
while (defined($line = <FILE>)) {
chomp $line;
next if $line =~ /^\s*#/;
next if $line =~ /^\s*$/;
next if $line =~ /^\s*(global|local):/;
if ($line =~ /^\s*LIBVIRT_QEMU_(\d+\.\d+\.\d+)\s*{\s*$/) {
if (defined $vers) {
die "malformed syms file";
}
$vers = $1;
} elsif ($line =~ /\s*}\s*;\s*$/) {
if (defined $prevvers) {
die "malformed syms file";
}
$prevvers = $vers;
$vers = undef;
} elsif ($line =~ /\s*}\s*LIBVIRT_QEMU_(\d+\.\d+\.\d+)\s*;\s*$/) {
if ($1 ne $prevvers) {
die "malformed syms file $1 != $vers";
}
$prevvers = $vers;
$vers = undef;
} elsif ($line =~ /\s*(\w+)\s*;\s*$/) {
my $file = $apixpath->find("/api/symbols/function[\@name='$1']/\@file");
$apis{$1} = {};
$apis{$1}->{vers} = $vers;
$apis{$1}->{file} = $file;
} else {
die "unexpected data $line\n";
}
}
close FILE;
parseSymsFile(\%apis, "LIBVIRT_QEMU", $symsqemu, "$srcdir/../docs/libvirt-qemu-api.xml");
# And the same for the LXC specific APIs
open FILE, "<$symslxc"
or die "cannot read $symslxc: $!";
$prevvers = undef;
$vers = undef;
$apixpath = XML::XPath->new(filename => "$srcdir/../docs/libvirt-lxc-api.xml");
while (defined($line = <FILE>)) {
chomp $line;
next if $line =~ /^\s*#/;
next if $line =~ /^\s*$/;
next if $line =~ /^\s*(global|local):/;
if ($line =~ /^\s*LIBVIRT_LXC_(\d+\.\d+\.\d+)\s*{\s*$/) {
if (defined $vers) {
die "malformed syms file";
}
$vers = $1;
} elsif ($line =~ /\s*}\s*;\s*$/) {
if (defined $prevvers) {
die "malformed syms file";
}
$prevvers = $vers;
$vers = undef;
} elsif ($line =~ /\s*}\s*LIBVIRT_LXC_(\d+\.\d+\.\d+)\s*;\s*$/) {
if ($1 ne $prevvers) {
die "malformed syms file $1 != $vers";
}
$prevvers = $vers;
$vers = undef;
} elsif ($line =~ /\s*(\w+)\s*;\s*$/) {
my $file = $apixpath->find("/api/symbols/function[\@name='$1']/\@file");
$apis{$1} = {};
$apis{$1}->{vers} = $vers;
$apis{$1}->{file} = $file;
} else {
die "unexpected data $line\n";
}
}
close FILE;
parseSymsFile(\%apis, "LIBVIRT_LXC", $symslxc, "$srcdir/../docs/libvirt-lxc-api.xml");
# Some special things which aren't public APIs,
@ -206,6 +136,8 @@ $apis{virDomainMigrateConfirm3Params}->{vers} = "1.1.0";
# and driver struct fields. This lets us later match
# update the driver impls with the public APis.
my $line;
# Group name -> hash of APIs { fields -> api name }
my %groups;
my $ingrp;