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authorLukasz Majewski <lukma@denx.de>2021-01-15 16:40:39 +0100
committerLukasz Majewski <lukma@denx.de>2021-03-08 22:37:16 +0100
commit496e36f2251f28961ce269548b5f3adb6546ef01 (patch)
tree9f19f635ff8b29f273cae7ce8c2766967a6c0dee /manual
parent60167dc24b09b25c6ca3353f9ce38c41340a792f (diff)
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tst: Extend cross-test-ssh.sh to specify if target date can be altered
This code adds new flag - '--allow-time-setting' to cross-test-ssh.sh script to indicate if it is allowed to alter the date on the system on which tests are executed. This change is supposed to be used with test systems, which use virtual machines for testing. The GLIBC_TEST_ALLOW_TIME_SETTING env variable is exported to the remote environment on which the eligible test is run and brings no functional change when it is not. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'manual')
-rw-r--r--manual/install.texi20
1 files changed, 20 insertions, 0 deletions
diff --git a/manual/install.texi b/manual/install.texi
index 419576f49c..eb41fbd0b5 100644
--- a/manual/install.texi
+++ b/manual/install.texi
@@ -379,6 +379,26 @@ directory and @var{hostname} is the host name of a system that can run
the newly built binaries of @theglibc{}. The source and build
directories must be visible at the same locations on both the build
system and @var{hostname}.
+The @samp{cross-test-ssh.sh} script requires @samp{flock} from
+@samp{util-linux} to work when @var{glibc_test_allow_time_setting}
+environment variable is set.
+
+It is also possible to execute tests, which require setting the date on
+the target machine. Following use cases are supported:
+@itemize @bullet
+@item
+@code{GLIBC_TEST_ALLOW_TIME_SETTING} is set in the environment in
+which eligible tests are executed and have the privilege to run
+@code{clock_settime}. In this case, nothing prevents those tests from
+running in parallel, so the caller shall assure that those tests
+are serialized or provide a proper wrapper script for them.
+
+@item
+The @code{cross-test-ssh.sh} script is used and one passes the
+@option{--allow-time-setting} flag. In this case, both sets
+@code{GLIBC_TEST_ALLOW_TIME_SETTING} and serialization of test
+execution are assured automatically.
+@end itemize
In general, when testing @theglibc{}, @samp{test-wrapper} may be set
to the name and arguments of any program to run newly built binaries.