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authorAlexander Kapshuk <alexander.kapshuk@gmail.com>2019-01-05 19:09:23 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-22 13:34:35 +0100
commit2ca46ed207d5d4e3c7a183fe11e8a2d02f86e7c6 (patch)
tree74ee264317a24e7bfbad66c327380462f28e286d /scripts
parentapplicom: Fix potential Spectre v1 vulnerabilities (diff)
downloadlinux-dev-2ca46ed207d5d4e3c7a183fe11e8a2d02f86e7c6.tar.xz
linux-dev-2ca46ed207d5d4e3c7a183fe11e8a2d02f86e7c6.zip
ver_linux: Assign constant RE to variable name for clarity
The regular expression that matches the version number of a utility being queried is used as a constant expression in the current implementation. Assigning the RE in question to a variable gives it a meaningful name that clearly expresses the intended use of the expression without having to think about the details of implementation. Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/ver_linux6
1 files changed, 4 insertions, 2 deletions
diff --git a/scripts/ver_linux b/scripts/ver_linux
index a6c728db05ce..810e608baa24 100755
--- a/scripts/ver_linux
+++ b/scripts/ver_linux
@@ -13,6 +13,8 @@ BEGIN {
system("uname -a")
printf("\n")
+ vernum = "[0-9]+([.]?[0-9]+)+"
+
printversion("GNU C", version("gcc -dumpversion"))
printversion("GNU Make", version("make --version"))
printversion("Binutils", version("ld -v"))
@@ -34,7 +36,7 @@ BEGIN {
while (getline <"/proc/self/maps" > 0) {
if (/libc.*\.so$/) {
n = split($0, procmaps, "/")
- if (match(procmaps[n], /[0-9]+([.]?[0-9]+)+/)) {
+ if (match(procmaps[n], vernum)) {
ver = substr(procmaps[n], RSTART, RLENGTH)
printversion("Linux C Library", ver)
break
@@ -70,7 +72,7 @@ BEGIN {
function version(cmd, ver) {
cmd = cmd " 2>&1"
while (cmd | getline > 0) {
- if (match($0, /[0-9]+([.]?[0-9]+)+/)) {
+ if (match($0, vernum)) {
ver = substr($0, RSTART, RLENGTH)
break
}