sysmo-bts
/
generic-poky
9
0
Fork 0
Code Pull Requests Releases Activity

buildstats.bbclass: Don't assume /proc/<pid>/io present 

It is not guaranteed Linux kernel was configured with process I/O
statistics enabled. If process I/O statistcs are not present, issue
a one time warning and do not attempt to read the non-existing stats
counters.

[YOCTO#9025]

(From OE-Core rev: b39e84edb02d03102b9a571c21e5328c159c4378)

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Juro Bystricky 2016-02-22 11:35:25 -08:00 committed by Richard Purdie
parent 07e1f10aa0
commit 4b32351f2d
1 changed files with 16 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
meta/classes/buildstats.bbclass
View File

@ -25,13 +25,14 @@ def get_process_cputime(pid):
'cstime' : fields[16],
}
iostats = {}
with open("/proc/%d/io" % pid, "r") as f:
while True:
i = f.readline().strip()
if not i:
break
i = i.split(": ")
iostats[i[0]] = i[1]
if os.path.isfile("/proc/%d/io" % pid):
with open("/proc/%d/io" % pid, "r") as f:
while True:
i = f.readline().strip()
if not i:
break
i = i.split(": ")
iostats[i[0]] = i[1]
resources = resource.getrusage(resource.RUSAGE_SELF)
childres = resource.getrusage(resource.RUSAGE_CHILDREN)
return stats, iostats, resources, childres
@ -111,7 +112,14 @@ python run_buildstats () {
if isinstance(e, bb.event.BuildStarted):
########################################################################
# at first pass make the buildstats heriarchy and then
# If the kernel was not configured to provide I/O statistics, issue
# a one time warning.
########################################################################
if not os.path.isfile("/proc/%d/io" % os.getpid()):
bb.warn("The Linux kernel on your build host was not configured to provide process I/O statistics. (CONFIG_TASK_IO_ACCOUNTING is not set)")
########################################################################
# at first pass make the buildstats hierarchy and then
# set the buildname
########################################################################
bb.utils.mkdirhier(bsdir)