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# Copyright Brian Kuhl 2017.
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt
# or copy at http://www.boost.org/LICENSE_1_0.txt)

import clang ;
import feature : feature get-values ;
import os ;
import toolset ;
import toolset : flags ;
import gcc ;
import common ;
import errors ;
import generators ;


feature.extend-subfeature toolset clang : platform : vxworks ;

toolset.inherit-generators clang-vxworks 
  <toolset>clang <toolset-clang:platform>vxworks 
  : gcc 
  # Don't inherit PCH generators. They were not tested, and probably
  # don't work for this compiler.
  : gcc.mingw.link gcc.mingw.link.dll gcc.compile.c.pch gcc.compile.c++.pch
  ;

generators.override clang-vxworks.prebuilt : builtin.lib-generator ;
generators.override clang-vxworks.prebuilt : builtin.prebuilt ;
generators.override clang-vxworks.searched-lib-generator : searched-lib-generator ;


toolset.inherit-rules clang-vxworks : gcc ;
toolset.inherit-flags clang-vxworks : gcc 
        : <inlining>full
          <architecture>x86/<address-model>32
          <architecture>x86/<address-model>64
        ;
        
if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
{
    .debug-configuration = true ;
}
# Initializes the clang-vxworks toolset
#   version in optional
#   compile and link options allow you to specify addition command line options for each version
rule init ( version ? :  command * : options * )
{
    command = [ common.get-invocation-command clang-vxworks : ccllvm 
        : $(command) ] ;
    
    linker = [ get-values <linker> : $(options) ] ;
    linker   ?= ld ;
    
    # Determine the version
    local command-string = $(command:J=" ") ;
    if $(command)
    {    
        version ?= [ MATCH "^([0-9.]+)"
            : [ SHELL "$(command-string) -dumpversion" ] ] ;
    }

    local condition = [ common.check-init-parameters clang-vxworks
        : version $(version) ] ;    

    common.handle-options clang-vxworks : $(condition) : $(command) : $(options) ;

    toolset.flags clang-vxworks.link      .LD  : $(linker) ;

    # - Archive builder.
    local archiver = [ feature.get-values <archiver> : $(options) ] ;
    toolset.flags clang-vxworks.archive .AR $(condition) : $(archiver[1]) ;
}

SPACE = " " ;

toolset.flags clang-vxworks.compile OPTIONS <cflags> ;
toolset.flags clang-vxworks.compile.c++ OPTIONS <cxxflags> ;
toolset.flags clang-vxworks.compile INCLUDES <include> ;

# For clang, 'on' and 'full' are identical
toolset.flags clang-vxworks.compile OPTIONS <inlining>full : -Wno-inline ;

toolset.flags clang-vxworks.compile OPTIONS <flags> ;


actions compile.c
{
    "$(CONFIG_COMMAND)" -x c $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
}

actions compile.c++
{
    "$(CONFIG_COMMAND)" -x c++ $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
}



# Default value. Mostly for the sake of clang-linux
# that inherits from gcc, but does not has the same
# logic to set the .AR variable. We can put the same
# logic in clang-linux, but that's hardly worth the trouble
# as on Linux, 'ar' is always available.
.AR = ar ;


actions piecemeal archive
{
  "$(.AR)" $(AROPTIONS) rcu "$(<)" "$(>)"
}

# Declare actions for linking
rule link ( targets * : sources * : properties * )
{
  SPACE on $(targets) = " " ;
  # Serialize execution of the 'link' action, since
  # running N links in parallel is just slower.
  JAM_SEMAPHORE on $(targets) = <s>clang-vxworks-link-semaphore ;
}

actions link bind LIBRARIES
{
    "$(.LD)" $(USER_OPTIONS) -L"$(LINKPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" $(START-GROUP) $(FINDLIBS-ST-PFX) -l$(FINDLIBS-ST) $(FINDLIBS-SA-PFX) -l$(FINDLIBS-SA) $(END-GROUP) $(OPTIONS) 
    }

actions link.dll bind LIBRARIES
{
    "$(.LD)" $(USER_OPTIONS) -L"$(LINKPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" $(START-GROUP) $(FINDLIBS-ST-PFX) -l$(FINDLIBS-ST) $(FINDLIBS-SA-PFX) -l$(FINDLIBS-SA) $(END-GROUP) $(OPTIONS) -fpic -shared -non-static
}