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Alexander Kapshuk 34fe3cfda8 ver_linux: Process input coming from procmaps that matches libc only

Currently, input coming from /proc/self/maps is split into fields without
checking whether or not it matches libc.so. This is not efficient.
All text processing should only be performed on lines of input that
match libc.so.

Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-07-07 17:44:52 +02:00

2.7 KiB

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#!/usr/bin/awk -f

SPDX-License-Identifier: GPL-2.0

Before running this script please ensure that your PATH is

typical as you use for compilation/installation. I use

/bin /sbin /usr/bin /usr/sbin /usr/local/bin, but it may

differ on your system.

BEGIN { usage = "If some fields are empty or look unusual you may have an old version.\n" usage = usage "Compare to the current minimal requirements in Documentation/Changes.\n" print usage

system("uname -a")
printf("\n")

printversion("GNU C", version("gcc -dumpversion"))
printversion("GNU Make", version("make --version"))
printversion("Binutils", version("ld -v"))
printversion("Util-linux", version("mount --version"))
printversion("Mount", version("mount --version"))
printversion("Module-init-tools", version("depmod -V"))
printversion("E2fsprogs", version("tune2fs"))
printversion("Jfsutils", version("fsck.jfs -V"))
printversion("Reiserfsprogs", version("reiserfsck -V"))
printversion("Reiser4fsprogs", version("fsck.reiser4 -V"))
printversion("Xfsprogs", version("xfs_db -V"))
printversion("Pcmciautils", version("pccardctl -V"))
printversion("Pcmcia-cs", version("cardmgr -V"))
printversion("Quota-tools", version("quota -V"))
printversion("PPP", version("pppd --version"))
printversion("Isdn4k-utils", version("isdnctrl"))
printversion("Nfs-utils", version("showmount --version"))

while (getline <"/proc/self/maps" > 0) {
	if (/libc.*\.so$/) {
		n = split($0, procmaps, "/")
		if (match(procmaps[n], /[0-9]+([.]?[0-9]+)+/)) {
			ver = substr(procmaps[n], RSTART, RLENGTH)
			printversion("Linux C Library", ver)
			break
		}
	}
}

printversion("Dynamic linker (ldd)", version("ldd --version"))

while ("ldconfig -p 2>/dev/null" | getline > 0) {
	if (/(libg|stdc)[+]+\.so/) {
		libcpp = $NF
		break
	}
}
printversion("Linux C++ Library", version("readlink " libcpp))
printversion("Procps", version("ps --version"))
printversion("Net-tools", version("ifconfig --version"))
printversion("Kbd", version("loadkeys -V"))
printversion("Console-tools", version("loadkeys -V"))
printversion("Oprofile", version("oprofiled --version"))
printversion("Sh-utils", version("expr --v"))
printversion("Udev", version("udevadm --version"))
printversion("Wireless-tools", version("iwconfig --version"))

while ("sort /proc/modules" | getline > 0) {
	mods = mods sep $1
	sep = " "
}
printversion("Modules Loaded", mods)

}

function version(cmd, ver) { cmd = cmd " 2>&1" while (cmd | getline > 0) { if (!/ver_linux/ && match($0, /[0-9]+([.]?[0-9]+)+/)) { ver = substr($0, RSTART, RLENGTH) break } } close(cmd) return ver }

function printversion(name, value, ofmt) { if (value != "") { ofmt = "%-20s\t%s\n" printf(ofmt, name, value) } }

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