path: root/tools/ccc/ccclib/Tools.py

import os
import sys # FIXME: Shouldn't be needed.

import Arguments
import Jobs
import Phases
import Types

class Tool(object):
    """Tool - A concrete implementation of an action."""

    eFlagsPipedInput = 1 << 0
    eFlagsPipedOutput = 1 << 1
    eFlagsIntegratedCPP = 1 << 2

    def __init__(self, name, flags = 0):
        self.name = name
        self.flags = flags

    def acceptsPipedInput(self):
        return not not (self.flags & Tool.eFlagsPipedInput)
    def canPipeOutput(self):
        return not not (self.flags & Tool.eFlagsPipedOutput)
    def hasIntegratedCPP(self):
        return not not (self.flags & Tool.eFlagsIntegratedCPP)

class GCC_Common_Tool(Tool):
    def getGCCExtraArgs(self):
        return []

    def constructJob(self, phase, arch, jobs, inputs, 
                     output, outputType, arglist, linkingOutput):
        cmd_args = []
        for arg in arglist.args:
            if arg.opt.forwardToGCC():
                cmd_args.extend(arglist.render(arg))

        cmd_args.extend(self.getGCCExtraArgs())
        if arch:
            cmd_args.extend(arglist.render(arch))
        if isinstance(output, Jobs.PipedJob):
            cmd_args.extend(['-o', '-'])
        elif isinstance(phase.phase, Phases.SyntaxOnlyPhase):
            cmd_args.append('-fsyntax-only')
        else:
            assert output
            cmd_args.extend(arglist.render(output))

        if (isinstance(self, GCC_LinkTool) and
            linkingOutput):
            cmd_args.append('-Wl,-arch_multiple')
            cmd_args.append('-Wl,-final_output,' + 
                            arglist.getValue(linkingOutput))

        # Only pass -x if gcc will understand it; otherwise hope gcc
        # understands the suffix correctly. The main use case this
        # would go wrong in is for linker inputs if they happened to
        # have an odd suffix; really the only way to get this to
        # happen is a command like '-x foobar a.c' which will treat
        # a.c like a linker input.
        #
        # FIXME: For the linker case specifically, can we safely
        # convert inputs into '-Wl,' options?
        for input in inputs:
            if input.type.canBeUserSpecified:
                cmd_args.extend(['-x', input.type.name])

            if isinstance(input.source, Jobs.PipedJob):
                cmd_args.append('-')
            else:
                assert isinstance(input.source, Arguments.Arg)
                # If this is a linker input then assume we can forward
                # just by rendering.
                if input.source.opt.isLinkerInput:
                    cmd_args.extend(arglist.render(input.source))
                else:
                    cmd_args.extend(arglist.renderAsInput(input.source))

        jobs.addJob(Jobs.Command('gcc', cmd_args))

class GCC_PreprocessTool(GCC_Common_Tool):
    def __init__(self):
        super(GCC_PreprocessTool, self).__init__('gcc (cpp)',
                                                 (Tool.eFlagsPipedInput |
                                                  Tool.eFlagsPipedOutput))

    def getGCCExtraArgs(self):
        return ['-E']

class GCC_CompileTool(GCC_Common_Tool):
    def __init__(self):
        super(GCC_CompileTool, self).__init__('gcc (cc1)',
                                              (Tool.eFlagsPipedInput |
                                               Tool.eFlagsPipedOutput |
                                               Tool.eFlagsIntegratedCPP))

    def getGCCExtraArgs(self):
        return ['-S']

class GCC_PrecompileTool(GCC_Common_Tool):
    def __init__(self):
        super(GCC_PrecompileTool, self).__init__('gcc (pch)',
                                                 (Tool.eFlagsPipedInput |
                                                  Tool.eFlagsIntegratedCPP))

    def getGCCExtraArgs(self):
        return []

class GCC_AssembleTool(GCC_Common_Tool):
    def __init__(self):
        # We can't generally assume the assembler can take or output
        # on pipes.