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Selecting a machine is only allowed to affect the signature of tasks
that are specific to that machine. In other words, when MACHINE=A and
MACHINE=B share a recipe foo and the output of foo, then both machine
configurations must build foo in exactly the same way. Otherwise it is
not possible to use both machines in the same distribution.
This criteria can only be tested by testing different machines in combination,
i.e. one main layer, potentially several additional BSP layers and an explicit
choice of machines:
yocto-compat-layer --additional-layers .../meta-intel --machines intel-corei7-64 imx6slevk -- .../meta-freescale
To simplify the analysis and limit the amount of output, mismatches
are sorted by task order such that tasks that run first are also
reported first. Following tasks for the same recipe and set of
machines then get pruned, because they are likely to be different
because of the underlying task (same approach as in
test_signatures). The difference here is that we get information about
all machines. The task order in the base configuration serves as
heuristic for sorting that merged list.
The test has already found issues in go-cross (depended on
tune-specific libgcc) and gdb-cross (had a tune-specific path
unnecessarily), so it is also useful to uncover issues that are not
caused by the BSP layer itself.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The new --addditional-layers parameter takes a list of layer
directories and adds them to the build configuration before starting
testing. The resulting base configuration then more closely matches
a full distro.
This is relevant in two cases:
1. some layers like meta-freescale dynamically enable more recipes
in their layer.conf depending on which other layers are active,
so testing only against OE-core might miss problems which occur
only when also some other layers are active
2. BSP layers might be fine in combination with machines from
OE-core, but might break in combination with some other machines
As before, test_signatures only warns about signature changes
introduced by the layer which is under testing, and not those changes
introduced by the additional layers.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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locked-sigs.inc groups tasks according to their tune flags (allarch,
i586, etc.). Also retrieve that information while getting signatures,
it will be needed to determine when setting a machine changes tasks
that aren't machine-specific.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The initial signatures need to be collected -after- the dependency layers have
been added to the system. Otherwise changes that happen due to dependencies,
outside of the layer being scanned, will show up as signature problems.
The add_layer function was split into two pieces so that we can process
the dependencies first, and then add the layer itself for the comparison.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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When processing a large number of items, there are times that it would be
nice to be able to pass in a series of layers that can be used as dependencies
for the layer that is being scanned. This avoids the significant overhead
of processing all of the layers to compatibility.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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If items were skipped because the dependencies could not be found, we
want to record this was skipped so we can display it later.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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If some layer depends on other tries to find layer dependency, if the
layer dependency isn't found avoid to test the layer and notice the
user.
Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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Sometimes there is a need to only analyze the layer specified by the
command line, the new option -n will disable autodiscovery of layers
and only will try to test specified layers.
Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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Only create a log file when --output-log option is specified, since
logger is dumping to stdout by default is better to let the user
decide if a log needs to be created.
[YOCTO #11160]
Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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The common unix tools uses stdout as standard for log output, by default
python logging uses stderr if not stream is specified.
[YOCTO #11160]
Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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The yocto-compat-layer script serves as a tool to validate the alignament
of a layer with YP Compatible Layers Programme [1], is based on an RFC
sent to the ML to enable automatic testing of layers [2] that wants to
be YP Compatible.
The tool takes an layer (or set of layers) via command line option -l
and detects what kind of layer is distro, machine or software and then
executes a set of tests against the layer in order to validate the
compatibility.
The tests currently implemented are:
common.test_readme: Test if a README file exists in the layer and isn't
empty.
common.test_parse: Test for execute bitbake -p without errors.
common.test_show_environment: Test for execute bitbake -e without errors.
common.test_signatures: Test executed in BSP and DISTRO layers to review
doesn't comes with recipes that changes the signatures.
bsp.test_bsp_defines_machines: Test if a BSP layers has machines
configurations.
bsp.test_bsp_no_set_machine: Test the BSP layer to doesn't set
machine at adding layer.
distro.test_distro_defines_distros: Test if a DISTRO layers has distro
configurations.
distro.test_distro_no_set_distro: Test the DISTRO layer to doesn't set
distro at adding layer.
Example of usage:
$ source oe-init-build-env
$ yocto-compat-layer.py LAYER_DIR
[YOCTO #10596]
[1] https://www.yoctoproject.org/webform/yocto-project-compatible-registration
[2] https://lists.yoctoproject.org/pipermail/yocto-ab/2016-October/001801.html
Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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