poky/meta/classes-recipe/multilib_script.bbclass
Joshua Watt 431767f069 classes-recipe/multilib_script: Expand before splitting
multilib_script.bbclass was unable to work correctly in the case where
e.g. a PACKAGECONFIG removed the script that it was intended to rename
(as an example, the "trace" PACKAGECONFIG in cairo). The way to fix this
would be to do something like:

 MULTILIB_SCRIPTS = "${@bb.utils.contains('PACKAGECONFIG', 'trace', '${PN}-perf-utils:${bindir}/cairo-trace', '', d)}"

but this is not possible because the variable is not expanded before
being split.

To fix this, change the class to expand the variable before splitting.
There are two cases to be considered that could possibly break:
 1) If the RHS of the ":" contains a ":", which is accounted for by
    limiting the splitting to 1 split, which will leave the ":" in the
    RHS in tact. Of note, this works because ":" isn't valid in a
    package name
 2) If the RHS of the ":" contained whitespace, however this would have
    broken the mv command written to multilibscript_rename(), so this
    isn't occurring in practice.

(From OE-Core rev: b9c992e69f3f44051610386ce4f743e224750694)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2024-07-18 17:21:39 +01:00

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#
# Copyright OpenEmbedded Contributors
#
# SPDX-License-Identifier: MIT
#
#
# Recipe needs to set MULTILIB_SCRIPTS in the form <pkgname>:<scriptname>, e.g.
# MULTILIB_SCRIPTS = "${PN}-dev:${bindir}/file1 ${PN}:${base_bindir}/file2"
# to indicate which script files to process from which packages.
#
inherit update-alternatives
MULTILIB_SUFFIX = "${@d.getVar('base_libdir',1).split('/')[-1]}"
PACKAGE_PREPROCESS_FUNCS += "multilibscript_rename"
multilibscript_rename() {
:
}
python () {
# Do nothing if multilib isn't being used
if not d.getVar("MULTILIB_VARIANTS"):
return
# Do nothing for native/cross
if bb.data.inherits_class('native', d) or bb.data.inherits_class('cross', d):
return
for entry in (d.getVar("MULTILIB_SCRIPTS") or "").split():
pkg, script = entry.split(":", 1)
scriptname = os.path.basename(script)
d.appendVar("ALTERNATIVE:" + pkg, " " + scriptname + " ")
d.setVarFlag("ALTERNATIVE_LINK_NAME", scriptname, script)
d.setVarFlag("ALTERNATIVE_TARGET", scriptname, script + "-${MULTILIB_SUFFIX}")
d.appendVar("multilibscript_rename", "\n mv ${PKGD}" + script + " ${PKGD}" + script + "-${MULTILIB_SUFFIX}")
d.appendVar("FILES:" + pkg, " " + script + "-${MULTILIB_SUFFIX}")
}