Coverity Scan Build Tool C/C++ instructions: sysctl vsyscall=emulate

2
votes

The Troubleshooting section of the Coverity Scan Build Tool C/C++ instructions states:

  • WARNING: Linux users on kernel version 4.8.x and newer will need to apply a sysctl parameter to support our binaries. Without this parameter, our binaries will not work on your platform. This is a known issue which we will address with a future release. 
    # sysctl vsyscall=emulate

The above command fails on Ubuntu 18.04 LTS with kernel 4.15.0:

# uname -r
4.15.0-20-generic
# 
# sysctl vsyscall=emulate
sysctl: cannot stat /proc/sys/vsyscall: No such file or directory
#

Should I disregard these instructions? Use a different command?

1
coverity

1 Answers

0
votes

The Coverity Build Tool for C/C++ seems to be working just fine on my computer without applying this sysctl parameter.

Either the warning does not apply to the current version of the Coverity Build Tool (version 2017.07) or the sysctl parameter is not required on some recent versions of the kernel, such as kernel 4.15.0 as shipped with Ubuntu 18.04.