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| author |   Mike Crowe <mac@mcrowe.com> | 2015-11-19 11:48:26 +0000 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2015-12-01 21:32:03 +0000 |
| commit | 804f5b83f39a0b8b57fbe9f5378dd46febe8058d (patch) | |
| tree | e93235622e3cbff7f5bcaac2afe502146bca8d54 /meta/lib | |
| parent | 312862f12ad7e0ba3a6edd32e5e821e3277b7c53 (diff) | |
| download | openembedded-core-contrib-804f5b83f39a0b8b57fbe9f5378dd46febe8058d.tar.gz | |
image.py: avoid mkdir race when building multiple images
If multiple images are being built simultaneously against the same
sysroot then the call to os.makedirs in Image._write_wic_env can fail
with:
File: '.../meta/lib/oe/image.py', lineno: 341, function: _write_wic_env
0337: """
0338: stdir = self.d.getVar('STAGING_DIR_TARGET', True)
0339: outdir = os.path.join(stdir, 'imgdata')
0340: if not os.path.exists(outdir):
*** 0341: os.makedirs(outdir)
0342: basename = self.d.getVar('IMAGE_BASENAME', True)
0343: with open(os.path.join(outdir, basename) + '.env', 'w') as envf:
0344: for var in self.d.getVar('WICVARS', True).split():
0345: value = self.d.getVar(var, True)
File: '/usr/lib/python2.7/os.py', lineno: 157, function: makedirs
0153: if e.errno != errno.EEXIST:
0154: raise
0155: if tail == curdir: # xxx/newdir/. exists if xxx/newdir exists
0156: return
*** 0157: mkdir(name, mode)
0158:
0159:def removedirs(name):
0160: """removedirs(path)
0161:
Exception: OSError: [Errno 17] File exists: '.../tmp-glibc/sysroots/cheetah/imgdata'
Using bb.utils.mkdirhier() protects against this.
There's also little point in checking to see if the directory already
exists - we might as well just try and create it regardless.
Once the directory has been created, there's no race on the actual file
since the filename contains IMAGE_BASENAME.
(From OE-Core rev: e3f216eef1b7a8ecfd00317e60704cff472238ba)
Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/lib')
| -rw-r--r-- | meta/lib/oe/image.py | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/meta/lib/oe/image.py b/meta/lib/oe/image.py index f0843de928..52ac1e752c 100644 --- a/meta/lib/oe/image.py +++ b/meta/lib/oe/image.py @@ -341,8 +341,7 @@ class Image(ImageDepGraph): stdir = self.d.getVar('STAGING_DIR_TARGET', True) outdir = os.path.join(stdir, 'imgdata') - if not os.path.exists(outdir): - os.makedirs(outdir) + bb.utils.mkdirhier(outdir) basename = self.d.getVar('IMAGE_BASENAME', True) with open(os.path.join(outdir, basename) + '.env', 'w') as envf: for var in wicvars.split(): |