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author | Richard Purdie <richard.purdie@linuxfoundation.org> | 2011-02-10 11:50:16 +0000 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2011-02-10 11:51:48 +0000 |
commit | 296866c38e1b88df42d66bdc32cfed2d5212914c (patch) | |
tree | f56631b4a7ed520ad4c7198c14a8746cc30cd01b /scripts | |
parent | d3d236b2bf2784d7454dcb7fce595b6aac6967cd (diff) | |
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image-swab: Convert to attach strace to the process to obtain the required swabber data
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-x | scripts/swabber-strace-attach | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/scripts/swabber-strace-attach b/scripts/swabber-strace-attach new file mode 100755 index 000000000..d4f80e4e9 --- /dev/null +++ b/scripts/swabber-strace-attach @@ -0,0 +1,30 @@ +#!/usr/bin/env python +import os +import sys + +# Detach from the controlling terminal and parent process by forking twice to daemonize ourselves, +# then run the command passed as argv[1]. Send log data to argv[2]. + +pid = os.fork() +if (pid == 0): + os.setsid() + pid = os.fork() + if (pid != 0): + os._exit(0) +else: + sys.exit() + + +si = file(os.devnull, 'r') +so = file(sys.argv[2], 'w') +se = so + +# Replace those fds with our own +os.dup2(si.fileno(), sys.stdin.fileno()) +os.dup2(so.fileno(), sys.stdout.fileno()) +os.dup2(se.fileno(), sys.stderr.fileno()) + +ret = os.system(sys.argv[1]) + +os._exit(ret) + |