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author | Richard Purdie <richard.purdie@linuxfoundation.org> | 2012-12-11 00:01:56 +0000 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2012-12-11 15:59:19 +0000 |
commit | 9fc98f96f0e0320beda0ce9546275a99336732c1 (patch) | |
tree | aac28d91ebb37156bdff5cefa8ac51506f42938a /lib/bb/parse/parse_py | |
parent | 5b1b959b43c5ca90a46769381cf18d82cd76ea60 (diff) | |
download | bitbake-9fc98f96f0e0320beda0ce9546275a99336732c1.tar.gz |
BBHandler/ast: Simplify/fix EXPORT_FUNCTIONS usage
The current usage of EXPORT_FUNCTIONS is rather problematic since a class
list (classes) is passed into the ast statement and cached as it was
when first parsed. This class list may be different in other cases but
is locked once in the cache.
Worse, the construction of classes can be broken by exceptions during parsing
at the wrong moments since the state of the parser is not always reset
correctly. This can lead to leakage of other classes into the classes list.
The current EXPORT_FUNCTIONS implementation looks at the last two currently
inherited classes and sets up an indirect function call view the second last
class inherited, e.g.:
do_configure calls gnomebase_do_configure
gnomebase_do_configure calls autotools_do_configure
This intermediary doesn't seem to serve a useful purpose.
This patch therefore makes builds deterministic and fixes various cache problems
and indirection by removing the intermediaries and simply performing
directly mapping for the cases where its needed.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'lib/bb/parse/parse_py')
-rw-r--r-- | lib/bb/parse/parse_py/BBHandler.py | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/lib/bb/parse/parse_py/BBHandler.py b/lib/bb/parse/parse_py/BBHandler.py index 2e0647b5d..92c55f531 100644 --- a/lib/bb/parse/parse_py/BBHandler.py +++ b/lib/bb/parse/parse_py/BBHandler.py @@ -51,7 +51,6 @@ __infunc__ = "" __inpython__ = False __body__ = [] __classname__ = "" -classes = [ None, ] cached_statements = {} @@ -107,7 +106,7 @@ def get_statements(filename, absolute_filename, base_name): return statements def handle(fn, d, include): - global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __infunc__, __body__, __residue__ + global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __infunc__, __body__, __residue__, __classname__ __body__ = [] __infunc__ = "" __classname__ = "" @@ -125,7 +124,6 @@ def handle(fn, d, include): if ext == ".bbclass": __classname__ = root - classes.append(__classname__) __inherit_cache = d.getVar('__inherit_cache') or [] if not fn in __inherit_cache: __inherit_cache.append(fn) @@ -150,11 +148,8 @@ def handle(fn, d, include): statements.eval(d) - if ext == ".bbclass": - classes.remove(__classname__) - else: - if include == 0: - return ast.multi_finalize(fn, d) + if ext != ".bbclass" and include == 0: + return ast.multi_finalize(fn, d) if oldfile: d.setVar("FILE", oldfile) @@ -166,7 +161,7 @@ def handle(fn, d, include): return d def feeder(lineno, s, fn, root, statements): - global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __def_regexp__, __python_func_regexp__, __inpython__, __infunc__, __body__, classes, bb, __residue__ + global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __def_regexp__, __python_func_regexp__, __inpython__, __infunc__, __body__, bb, __residue__, __classname__ if __infunc__: if s == '}': __body__.append('') @@ -225,7 +220,7 @@ def feeder(lineno, s, fn, root, statements): m = __export_func_regexp__.match(s) if m: - ast.handleExportFuncs(statements, fn, lineno, m, classes) + ast.handleExportFuncs(statements, fn, lineno, m, __classname__) return m = __addtask_regexp__.match(s) |