[OE-core] [PATCH] meson.bbclass: warn if cross property defaults are used
Ross Burton
ross.burton at intel.com
Fri Jan 3 18:09:14 UTC 2020
The Meson idiom for checks which require running code on the target
(which isn't possible in cross compilation) is to use a cross property,
which the user can set in the cross file:
if cc_can_run
rres = cc.run(test_foo_code)
have_foo = rres.compiled() and rres.returncode() == 0
else
have_foo = meson.get_cross_property('have_foo', false)
endif
The default value may be overly conservative so we should review every
property and explicitly set them as apppropriate. oe-core 669ddaf added
a log message when the default value is used, so look for this message
and emit a warning that the user will see.
Signed-off-by: Ross Burton <ross.burton at intel.com>
---
meta/classes/meson.bbclass | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/meta/classes/meson.bbclass b/meta/classes/meson.bbclass
index 71f9de1a570..6a3c0c55e30 100644
--- a/meta/classes/meson.bbclass
+++ b/meta/classes/meson.bbclass
@@ -158,6 +158,15 @@ meson_do_configure_prepend_class-native() {
export PKG_CONFIG="pkg-config-native"
}
+python meson_do_qa_configure() {
+ import re
+ warn_re = re.compile(r"^WARNING: Cross property (.+) is using default value (.+)$", re.MULTILINE)
+ log = open(d.expand("${B}/meson-logs/meson-log.txt")).read()
+ for (prop, value) in warn_re.findall(log):
+ bb.warn("Meson cross property %s used without explicit assignment, defaulting to %s" % (prop, value))
+}
+do_configure[postfuncs] += "meson_do_qa_configure"
+
do_compile[progress] = "outof:^\[(\d+)/(\d+)\]\s+"
meson_do_compile() {
ninja -v ${PARALLEL_MAKE}
--
2.20.1
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