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#   Copyright (C) 2009, 2010 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with GCC; see the file COPYING3.  If not see

# .

#

# This file contains the support procedures for testing the plugin mechanism.

load_lib dg.exp

load_lib gcc.exp

#

# plugin-get-options -- process test directives

#

# SRC is the full pathname of the plugin source file.

#

proc plugin-get-options { src } {

    # dg-options sets a variable called dg-extra-tool-flags.

    set dg-extra-tool-flags ""

    # dg-require-* sets dg-do-what.

    upvar dg-do-what dg-do-what

    set tmp [dg-get-options $src]

    foreach op $tmp {

        set cmd [lindex $op 0]

        if { ![string compare "dg-options" $cmd] } {

            set status [catch "$op" errmsg]

            if { $status != 0 } {

                perror "src: $errmsg for \"$op\"\n"

                unresolved "$src: $errmsg for \"$op\""

                return

            }

        } else {

            # Ignore unrecognized dg- commands, but warn about them.

            warning "plugin.exp does not support $cmd"

        }

   }

    # Return flags to use for compiling the plugin source file

    return ${dg-extra-tool-flags}

}

#

# plugin-test-execute -- build the plugin first and then compile the

# test files with the plugin.

#

# PLUGIN_SRC is the full pathname of the plugin source file.

# PLUGIN_TESTS is a list of input test source files.

#

proc plugin-test-execute { plugin_src plugin_tests } {

    global srcdir objdir

    global verbose

    global GMPINC

    global PLUGINCC

    global PLUGINCFLAGS

    set basename [file tail $plugin_src]

    set base [file rootname $basename]

    set plugin_lib $base.so

    verbose "Test the plugin $basename" 1

    # Build the plugin itself

    set extra_flags [plugin-get-options $plugin_src]

    # Note that the plugin test support currently only works when the GCC

    # build tree is available. (We make sure that is the case in plugin.exp.)

    # Once we have figured out how/where to package/install GCC header files

    # for general plugin support, we should modify the following include paths

    # accordingly.

    set gcc_srcdir "$srcdir/../.."

    set gcc_objdir "$objdir/../../.."

    set includes "-I. -I${srcdir} -I${gcc_srcdir}/gcc -I${gcc_objdir}/gcc \

                  -I${gcc_srcdir}/include -I${gcc_srcdir}/libcpp/include \

                  $GMPINC -I${gcc_objdir}/intl"

    if { [ ishost *-*-darwin* ] } {

        # -mdynamic-no-pic is incompatible with -fPIC.

        set plug_cflags ""

        foreach op $PLUGINCFLAGS {

            if { [string compare "-mdynamic-no-pic" $op] } {

                set plug_cflags [concat $plug_cflags " $op"]

            }

        }

        set optstr "$includes"

        foreach op $extra_flags {

            if { [string compare "-mdynamic-no-pic" $op] } {

                set optstr [concat $optstr " $op"]

            }

        }

        set optstr [concat $optstr "-DIN_GCC -fPIC -shared -undefined dynamic_lookup"]

    } else {

        set plug_cflags $PLUGINCFLAGS

        set optstr "$includes $extra_flags -DIN_GCC -fPIC -shared"

    }

    # Temporarily switch to the environment for the plugin compiler.

    restore_ld_library_path_env_vars

    set status [remote_exec build "$PLUGINCC $plug_cflags $plugin_src $optstr -o $plugin_lib"]

    set status [lindex $status 0]

    set_ld_library_path_env_vars

    if { $status != 0 } then {

        unresolved "$basename compilation, $optstr"

        return

    }

    # Compile the input source files with the plugin

    global default_flags

    set plugin_enabling_flags "-fplugin=./$plugin_lib"

    dg-runtest $plugin_tests $plugin_enabling_flags $default_flags

    # Clean up

    remote_file build delete $plugin_lib

}