author | jjkang |
Fri, 25 Jun 2010 19:56:45 +0800 | |
changeset 604 | b33dd54aaa52 |
parent 0 | 044383f39525 |
child 3 | e1eecf4d390d |
permissions | -rw-r--r-- |
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# |
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# Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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# All rights reserved. |
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# This component and the accompanying materials are made available |
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# under the terms of the License "Eclipse Public License v1.0" |
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# which accompanies this distribution, and is available |
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# at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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# |
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# Initial Contributors: |
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# Nokia Corporation - initial contribution. |
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# |
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# Contributors: |
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# |
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# Description: |
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# # Implements a stack mechanism for FLMS |
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# # Author: Timothy Murphy |
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# # CHANGE THIS FILE AT YOUR PERIL! :-) |
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# # It is very sensitive to spaces on the end of variables. |
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# # It took a lot of trouble to get this exactly right so |
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# # be careful about changing it. |
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# # A "call stack" is necessary for variables which are used |
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# # in an append-manner by glue makefiles. This behavior |
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# # is only needed where and FLM call has the form: |
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# # OUTPUTPATH:=$(OUTPUTPATH)/subdir |
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# # include $(FLMHOME)/exefile.flm |
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# # This is because the outputpath setting must be undone |
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# # before the next call to an FLM that uses OUTPUTPATH (otherwise it keeps growing) |
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# # USAGE: |
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# # $(call vsave,VARIABLE1 VARIABLE2) |
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# # $(call vrestore) |
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# |
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ifeq ($(VARIABLE_STACK_NAME),) |
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VARIABLE_STACK_NAME:=STACK |
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endif |
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# $(1) should list the variables |
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# vadd must be exactly of the form of 3 lines, the middle one containing "$(1)" |
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# Otherwise the extra return will be treated like a character rather than as whitespace |
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define LINEFEED |
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endef |
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define vadd |
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$(1):=$(2) |
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endef |
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|
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# |
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# Create a kind of stack "frame" |
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# The parameters are names of variables whose values are to be stored in the frame |
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# so that these values may be restored later. |
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# |
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# use thus: |
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# $(call vsave,OUTPUTPATH SOURCEPATH CDEFS) |
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# |
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define vsave |
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$(eval |
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VARIABLE_STACK_NAME:=$(VARIABLE_STACK_NAME).F |
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$$(VARIABLE_STACK_NAME):=$$(foreach VAR,$(1),$$(call vadd,$$(VAR),$$($$(VAR))))) |
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endef |
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|
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# |
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# Pop the top stack frame. |
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# |
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# use thus: |
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# $(call vrestore) |
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# |
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define vrestore |
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$(eval $($(VARIABLE_STACK_NAME)) |
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VARIABLE_STACK_NAME:=$(patsubst %.F,%,$(VARIABLE_STACK_NAME)) |
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) |
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endef |
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