diff options
| -rw-r--r-- | meta/classes/externalsrc.bbclass | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/meta/classes/externalsrc.bbclass b/meta/classes/externalsrc.bbclass new file mode 100644 index 0000000000..7e00ef8d12 --- /dev/null +++ b/meta/classes/externalsrc.bbclass @@ -0,0 +1,53 @@ +# Copyright (C) 2012 Linux Foundation +# Author: Richard Purdie +# Some code and influence taken from srctree.bbclass: +# Copyright (C) 2009 Chris Larson <clarson@kergoth.com> +# Released under the MIT license (see COPYING.MIT for the terms) +# +# externalsrc.bbclass enables use of an existing source tree, usually external to +# the build system to build a piece of software rather than the usual fetch/unpack/patch +# process. +# +# To use, set S to point at the directory you want to use containing the sources +# e.g. S = "/path/to/my/source/tree" +# +# If the class is to work for both target and native versions (or with multilibs/ +# cross or other BBCLASSEXTEND variants), its expected that setting B to point to +# where to place the compiled binaries will work (split source and build directories). +# This is the default but B can be set to S if circumstaces dictate. +# + +SRC_URI = "" +SRCTREECOVEREDTASKS ?= "do_patch do_unpack do_fetch" +B = "${WORKDIR}/${BPN}-${PV}/" + +def remove_tasks(tasks, deltasks, d): + for task in tasks: + deps = d.getVarFlag(task, "deps") + for preptask in deltasks: + if preptask in deps: + deps.remove(preptask) + d.setVarFlag(task, "deps", deps) + # Poking around bitbake internal variables is evil but there appears to be no better way :( + tasklist = d.getVar('__BBTASKS') or [] + for task in deltasks: + d.delVarFlag(task, "task") + if task in tasklist: + tasklist.remove(task) + d.setVar('__BBTASKS', tasklist) + +python () { + tasks = filter(lambda k: d.getVarFlag(k, "task"), d.keys()) + covered = d.getVar("SRCTREECOVEREDTASKS", True).split() + + for task in tasks: + if task.endswith("_setscene"): + # sstate is never going to work for external source trees, disable it + covered.append(task) + else: + # Since configure will likely touch ${S}, ensure only we lock so one task has access at a time + d.appendVarFlag(task, "lockfiles", "${S}/singletask.lock") + + remove_tasks(tasks, covered, d) +} + |