diff options
| author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 | 
|---|---|---|
| committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 | 
| commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
| tree | 65ca85f13617aee1dce474596800950f266a456c /roms/ipxe/src/util/get-pci-ids | |
| download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip | |
Diffstat (limited to 'roms/ipxe/src/util/get-pci-ids')
| -rwxr-xr-x | roms/ipxe/src/util/get-pci-ids | 136 | 
1 files changed, 136 insertions, 0 deletions
| diff --git a/roms/ipxe/src/util/get-pci-ids b/roms/ipxe/src/util/get-pci-ids new file mode 100755 index 00000000..42466221 --- /dev/null +++ b/roms/ipxe/src/util/get-pci-ids @@ -0,0 +1,136 @@ +#! /usr/bin/perl -w + +# get-pci-ids: extract pci vendor/device ids from linux net drivers + +# Copyright (C) 2003 Georg Baum <gbaum@users.sf.net> + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +# 02110-1301, USA. + + +# Known bugs/limitations: +# - Does not recognize all drivers because some require special cflags. +#   Fails also on some drivers that do belong to other architectures +#   than the one of the machine this script is running on. +#   This is currently not so important because all drivers that have an +#   Etherboot counterpart are recognized. + + +use strict; +use File::Basename "dirname"; +use POSIX "uname"; + +# Where to find the kernel sources +my $kernel_src = "/usr/src/linux"; + +if($#ARGV >= 0) { +	$kernel_src = shift; +} + +# Sanity checks +if($#ARGV >= 0) { +	print STDERR "Too many arguments.\n"; +	print STDERR "Usage: get-pci-ids [path to kernel sources]\n"; +	print STDERR "       /usr/src/linux is assumed if no path is given.\n"; +	exit 1; +} + +unless(-f "$kernel_src/include/linux/version.h") { +	print STDERR "Could not find $kernel_src/include/linux/version.h.\n"; +	print STDERR "$kernel_src is probably no Linux kernel source tree.\n"; +	exit 1; +} + +# Flags that are needed to preprocess the drivers. +# Some drivers need optimization +my $cflags="-D__KERNEL__ -I$kernel_src/include -I$kernel_src/net/inet -O2"; + +# The C preprocessor. It needs to spit out the preprocessed source on stdout. +my $cpp="gcc -E"; + +# List of drivers. We parse every .c file. It does not harm if it does not contain a driver. +my @drivers = split /\s+/, `find $kernel_src/drivers/net -name '*.c' | sort`; + +# Kernel version +my $version = `grep UTS_RELEASE $kernel_src/include/linux/version.h`; +chomp $version; +$version =~ s/\s*#define\s+UTS_RELEASE\s+"(\S+)".*$/$1/g; + +# Architecture +my @uname = uname(); + + +# Print header +print "# PCI vendor/device ids extracted from Linux $version on $uname[4] at " . gmtime() . "\n"; + +my $driver; + +# Process the drivers +foreach $driver (@drivers) { + +	# Preprocess to expand macros +	my $command = "$cpp $cflags -I" . dirname($driver) . " $driver"; +	open  DRIVER, "$command |" or die "Could not execute\n\"$command\".\n"; + +	# Extract the pci_device_id structure +	my $found = 0; +	my $line = ""; +	my @lines; +	while(<DRIVER>) { +		if(/^\s*static\s+struct\s+pci_device_id/) { +			# This file contains a driver. Print the name. +			$driver =~ s!$kernel_src/drivers/net/!!g; +			print "\n$driver\n"; +			$found = 1; +			next; +		} +		if($found == 1){ +			if(/\};/ or /{\s*0\s*,?\s*}/) { +				# End of struct +				$found = 0; +			} else { +				chomp; +				if(/\}\s*,?\s*\n?$/) { +					# This line contains a full entry or the last part of it. +					$_ = $line . $_; +					$line = ""; +					s/[,\{\};\(\)]//g;	# Strip punctuation +					s/^\s+//g;		# Eat whitespace at beginning of line +					tr[A-Z][a-z];		# Convert to lowercase +					# Push the vendor and device id to @lines if this line is not empty. +					# We ignore everything else that might be there +					my ($vendor_id, $device_id, $remainder) = split /\W+/, $_, 3; +					push @lines, "$vendor_id $device_id\n" if($vendor_id && $device_id); +				} else { +					# This line does contain a partial entry. Remember it. +					$line .= "$_ "; +				} +			} +		} +	} +	close DRIVER;		# No "or die", because $cpp fails on some files + +	# Now print out the sorted values +	@lines = sort @lines; +	my $lastline = ""; +	foreach(@lines) { +		# Print each vendor/device id combination only once. +		# Some drivers (e.g. e100) do contain subfamilies +		print if($_ ne $lastline); +		$lastline = $_; +	} +} + + | 
