309 lines
9.2 KiB
Python
309 lines
9.2 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2012 The Chromium OS Authors.
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import re
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class Expr:
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"""A single regular expression for matching boards to build"""
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def __init__(self, expr):
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"""Set up a new Expr object.
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Args:
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expr: String cotaining regular expression to store
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"""
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self._expr = expr
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self._re = re.compile(expr)
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def Matches(self, props):
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"""Check if any of the properties match the regular expression.
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Args:
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props: List of properties to check
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Returns:
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True if any of the properties match the regular expression
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"""
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for prop in props:
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if self._re.match(prop):
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return True
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return False
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def __str__(self):
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return self._expr
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class Term:
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"""A list of expressions each of which must match with properties.
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This provides a list of 'AND' expressions, meaning that each must
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match the board properties for that board to be built.
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"""
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def __init__(self):
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self._expr_list = []
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self._board_count = 0
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def AddExpr(self, expr):
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"""Add an Expr object to the list to check.
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Args:
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expr: New Expr object to add to the list of those that must
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match for a board to be built.
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"""
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self._expr_list.append(Expr(expr))
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def __str__(self):
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"""Return some sort of useful string describing the term"""
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return '&'.join([str(expr) for expr in self._expr_list])
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def Matches(self, props):
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"""Check if any of the properties match this term
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Each of the expressions in the term is checked. All must match.
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Args:
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props: List of properties to check
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Returns:
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True if all of the expressions in the Term match, else False
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"""
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for expr in self._expr_list:
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if not expr.Matches(props):
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return False
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return True
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class Board:
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"""A particular board that we can build"""
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def __init__(self, status, arch, cpu, soc, vendor, board_name, target, options):
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"""Create a new board type.
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Args:
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status: define whether the board is 'Active' or 'Orphaned'
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arch: Architecture name (e.g. arm)
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cpu: Cpu name (e.g. arm1136)
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soc: Name of SOC, or '' if none (e.g. mx31)
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vendor: Name of vendor (e.g. armltd)
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board_name: Name of board (e.g. integrator)
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target: Target name (use make <target>_defconfig to configure)
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options: board-specific options (e.g. integratorcp:CM1136)
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"""
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self.target = target
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self.arch = arch
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self.cpu = cpu
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self.board_name = board_name
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self.vendor = vendor
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self.soc = soc
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self.options = options
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self.props = [self.target, self.arch, self.cpu, self.board_name,
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self.vendor, self.soc, self.options]
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self.build_it = False
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class Boards:
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"""Manage a list of boards."""
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def __init__(self):
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# Use a simple list here, sinc OrderedDict requires Python 2.7
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self._boards = []
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def AddBoard(self, board):
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"""Add a new board to the list.
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The board's target member must not already exist in the board list.
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Args:
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board: board to add
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"""
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self._boards.append(board)
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def ReadBoards(self, fname):
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"""Read a list of boards from a board file.
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Create a board object for each and add it to our _boards list.
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Args:
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fname: Filename of boards.cfg file
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"""
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with open(fname, 'r') as fd:
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for line in fd:
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if line[0] == '#':
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continue
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fields = line.split()
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if not fields:
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continue
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for upto in range(len(fields)):
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if fields[upto] == '-':
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fields[upto] = ''
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while len(fields) < 8:
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fields.append('')
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if len(fields) > 8:
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fields = fields[:8]
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board = Board(*fields)
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self.AddBoard(board)
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def GetList(self):
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"""Return a list of available boards.
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Returns:
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List of Board objects
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"""
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return self._boards
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def GetDict(self):
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"""Build a dictionary containing all the boards.
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Returns:
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Dictionary:
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key is board.target
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value is board
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"""
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board_dict = {}
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for board in self._boards:
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board_dict[board.target] = board
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return board_dict
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def GetSelectedDict(self):
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"""Return a dictionary containing the selected boards
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Returns:
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List of Board objects that are marked selected
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"""
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board_dict = {}
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for board in self._boards:
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if board.build_it:
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board_dict[board.target] = board
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return board_dict
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def GetSelected(self):
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"""Return a list of selected boards
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Returns:
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List of Board objects that are marked selected
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"""
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return [board for board in self._boards if board.build_it]
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def GetSelectedNames(self):
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"""Return a list of selected boards
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Returns:
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List of board names that are marked selected
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"""
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return [board.target for board in self._boards if board.build_it]
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def _BuildTerms(self, args):
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"""Convert command line arguments to a list of terms.
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This deals with parsing of the arguments. It handles the '&'
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operator, which joins several expressions into a single Term.
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For example:
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['arm & freescale sandbox', 'tegra']
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will produce 3 Terms containing expressions as follows:
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arm, freescale
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sandbox
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tegra
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The first Term has two expressions, both of which must match for
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a board to be selected.
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Args:
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args: List of command line arguments
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Returns:
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A list of Term objects
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"""
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syms = []
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for arg in args:
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for word in arg.split():
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sym_build = []
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for term in word.split('&'):
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if term:
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sym_build.append(term)
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sym_build.append('&')
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syms += sym_build[:-1]
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terms = []
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term = None
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oper = None
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for sym in syms:
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if sym == '&':
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oper = sym
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elif oper:
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term.AddExpr(sym)
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oper = None
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else:
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if term:
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terms.append(term)
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term = Term()
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term.AddExpr(sym)
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if term:
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terms.append(term)
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return terms
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def SelectBoards(self, args, exclude=[], boards=None):
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"""Mark boards selected based on args
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Normally either boards (an explicit list of boards) or args (a list of
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terms to match against) is used. It is possible to specify both, in
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which case they are additive.
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If boards and args are both empty, all boards are selected.
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Args:
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args: List of strings specifying boards to include, either named,
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or by their target, architecture, cpu, vendor or soc. If
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empty, all boards are selected.
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exclude: List of boards to exclude, regardless of 'args'
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boards: List of boards to build
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Returns:
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Tuple
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Dictionary which holds the list of boards which were selected
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due to each argument, arranged by argument.
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List of errors found
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"""
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result = {}
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warnings = []
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terms = self._BuildTerms(args)
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result['all'] = []
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for term in terms:
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result[str(term)] = []
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exclude_list = []
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for expr in exclude:
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exclude_list.append(Expr(expr))
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found = []
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for board in self._boards:
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matching_term = None
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build_it = False
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if terms:
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match = False
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for term in terms:
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if term.Matches(board.props):
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matching_term = str(term)
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build_it = True
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break
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elif boards:
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if board.target in boards:
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build_it = True
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found.append(board.target)
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else:
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build_it = True
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# Check that it is not specifically excluded
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for expr in exclude_list:
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if expr.Matches(board.props):
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build_it = False
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break
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if build_it:
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board.build_it = True
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if matching_term:
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result[matching_term].append(board.target)
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result['all'].append(board.target)
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if boards:
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remaining = set(boards) - set(found)
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if remaining:
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warnings.append('Boards not found: %s\n' % ', '.join(remaining))
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return result, warnings
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