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# Copyright 2004, 2007, 2008, 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 this program.  If not, see <http://www.gnu.org/licenses/>.

load_lib libgloss.exp

# FIXME:brobecker/2004-03-31:
# The following function should eventually be part of dejagnu. Even after
# this function becomes available in dejagnu, we will keep for a while
# a copy of this function here in order to avoid increasing the dejagnu
# version requirement.

proc gdb_find_gnatmake {} {
    global tool_root_dir

    set root "$tool_root_dir/gcc"
    set GM ""

    if ![is_remote host] {
        set file [lookfor_file $root gnatmake]
        if { $file != "" } {
            set GM "$file -I$root/ada/rts --GCC=$root/xgcc --GNATBIND=$root/gnatbind --GNATLINK=$root/gnatlink -cargs -B$root -largs --GCC=$root/xgcc -margs";
        }   
    }

    if {$GM == ""} {
        set GM [transform gnatmake]
    }

    return $GM
}   

# FIXME:brobecker/2004-03-31:
# The following function is a copy of the function of the same name provided
# by dejagnu, except that it has been modified to add support for building
# Ada programs.  This copy is temporarily placed here until the changes
# are merged into the dejagnu official release. Once the changes are merged,
# we will likely keep this local copy for a while to avoid increasing the
# dejagnu version requirement.

proc gdb_default_target_compile {source destfile type options} {
    global target_triplet
    global tool_root_dir
    global CFLAGS_FOR_TARGET
    global compiler_flags

    if { $destfile == "" && $type != "preprocess" && $type != "none" } {
        error "Must supply an output filename for the compile to default_target_compile"
    }

    set add_flags ""
    set libs ""
    set compiler_type "c"
    set compiler ""
    set ldflags ""
    set dest [target_info name]

    if [info exists CFLAGS_FOR_TARGET] {
        append add_flags " $CFLAGS_FOR_TARGET"
    }

    if [info exists target_info(host,name)] {
        set host [host_info name];
    } else {
        set host "unix";
    }

    foreach i $options {
        if { $i == "ada" } {
            set compiler_type "ada"
            if [board_info $dest exists adaflags] {
                append add_flags " [target_info adaflags]"
            }
            # append add_flags " [gnatmake_include_flags]";
            if [board_info $dest exists gnatmake] {
                set compiler [target_info gnatmake];
            } else {
                set compiler [find_gnatmake];
            }
        }

        if { $i == "c++" } {
            set compiler_type "c++"
            if [board_info $dest exists cxxflags] {
                append add_flags " [target_info cxxflags]"
            }
            append add_flags " [g++_include_flags]";
            if [board_info $dest exists c++compiler] {
                set compiler [target_info c++compiler];
            } else {
                set compiler [find_g++];
            }
        }

        if { $i == "f77" } {
            set compiler_type "f77"
            if [board_info $dest exists f77flags] {
                append add_flags " [target_info f77flags]"
            }
#           append add_flags " [f77_include_flags]"
            if [board_info $dest exists f77compiler] {
                set compiler [target_info f77compiler]
            } else {
                set compiler [find_g77]
            }
        }

        if [regexp "^dest=" $i] {
            regsub "^dest=" $i "" tmp
            if [board_info $tmp exists name] {
                set dest [board_info $tmp name];
            } else {
                set dest $tmp;
            }
        }
        if [regexp "^compiler=" $i] {
            regsub "^compiler=" $i "" tmp
            set compiler $tmp
        }
        if [regexp "^additional_flags=" $i] {
            regsub "^additional_flags=" $i "" tmp
            append add_flags " $tmp"
        }
        if [regexp "^ldflags=" $i] {
            regsub "^ldflags=" $i "" tmp
            append ldflags " $tmp"
        }
        if [regexp "^libs=" $i] {
            regsub "^libs=" $i "" tmp
            append libs " $tmp"
        }
        if [regexp "^incdir=" $i] {
            regsub "^incdir=" $i "-I" tmp
            append add_flags " $tmp"
        }
        if [regexp "^libdir=" $i] {
            regsub "^libdir=" $i "-L" tmp
            append add_flags " $tmp"
        }
        if [regexp "^ldscript=" $i] {
            regsub "^ldscript=" $i "" ldscript
        }
        if [regexp "^redirect=" $i] {
            regsub "^redirect=" $i "" redirect
        }
        if [regexp "^optimize=" $i] {
            regsub "^optimize=" $i "" optimize
        }
        if [regexp "^timeout=" $i] {
            regsub "^timeout=" $i "" timeout
        }
    }

    if [board_info $host exists cflags_for_target] {
        append add_flags " [board_info $host cflags_for_target]";
    }

    global CC_FOR_TARGET
    global CXX_FOR_TARGET
    global F77_FOR_TARGET
    global GNATMAKE_FOR_TARGET
    
    if [info exists CC_FOR_TARGET] {
        if { $compiler == "" } {
            set compiler $CC_FOR_TARGET
        }
    }

    if [info exists CXX_FOR_TARGET] {
        if { $compiler_type == "c++" } {
            set compiler $CXX_FOR_TARGET
        }
    }

    if [info exists F77_FOR_TARGET] {
        if { $compiler_type == "f77" } {
            set compiler $F77_FOR_TARGET
        }
    }

    if [info exists GNATMAKE_FOR_TARGET] {
        if { $compiler_type == "ada" } {
            set compiler $GNATMAKE_FOR_TARGET
        }
    }

    if { $compiler == "" } {
        set compiler [board_info $dest compiler];
        if { $compiler == "" } {
            return "default_target_compile: No compiler to compile with";
        }
    }

    if ![is_remote host] {
        if { [which $compiler] == 0 } {
            return "default_target_compile: Can't find $compiler."
        }
    }

    if {$type == "object"} {
        append add_flags " -c"
    }

    if { $type == "preprocess" } {
        append add_flags " -E"
    }
    
    if { $type == "assembly" } {
        append add_flags " -S"
    }

    if [board_info $dest exists cflags] {
        append add_flags " [board_info $dest cflags]"
    }

    if { $type == "executable" } {
        # This must be added here.
        # if [board_info $dest exists ldscript] {
        #     append add_flags " [board_info $dest ldscript]"
        # }

        if [board_info $dest exists ldflags] {
            append add_flags " [board_info $dest ldflags]"
        }
        if { $compiler_type == "c++" } {
            append add_flags " [g++_link_flags]";
        }
        if [isnative] {
            # This is a lose.
            catch "glob -nocomplain $tool_root_dir/libstdc++/libstdc++.so* $tool_root_dir/libstdc++/libstdc++.sl" tmp
            if { ${tmp} != "" } {
                if [regexp ".*solaris2.*" $target_triplet] {
                    # Solaris 2
                    append add_flags " -R$tool_root_dir/libstdc++"
                } elseif [regexp ".*(osf|irix5|linux).*" $target_triplet] {
                    # OSF/1 or Irix5
                    append add_flags " -Wl,-rpath,$tool_root_dir/libstdc++"
                } elseif [regexp ".*hppa.*" $target_triplet] {
                    # HP/UX
                    append add_flags " -Wl,-a,shared_archive"
                }
            }
        }
    }

    if ![info exists ldscript] {
        set ldscript [board_info $dest ldscript]
    }

    foreach i $options {
        if { $i == "debug" } {
            if [board_info $dest exists debug_flags] {
                append add_flags " [board_info $dest debug_flags]";
            } else {
                append add_flags " -g"
            }
        }
    }

    if [info exists optimize] {
        append add_flags " $optimize";
    }

    if { $type == "executable" } {
        append add_flags " $ldflags"
        foreach x $libs {
            if [file exists $x] {
                append source " $x"
            } else {
                append add_flags " $x";
            }
        }

        if [board_info $dest exists libs] {
            append add_flags " [board_info $dest libs]"
        }

        # This probably isn't such a good idea, but it avoids nasty
        # hackiness in the testsuites.
        # The math library must be linked in before the C library.  The C
        # library is linked in by the linker script, so this must be before
        # the linker script.
        if [board_info $dest exists mathlib] {
            append add_flags " [board_info $dest mathlib]"
        } else {
            append add_flags " -lm"
        }

        # This must be added here.
        append add_flags " $ldscript";

        if [board_info $dest exists remote_link] {
            # Relink option.
            append add_flags " -Wl,-r"
        }
        if [board_info $dest exists output_format] {
            append add_flags " -Wl,-oformat,[board_info $dest output_format]";
        }
    }

    if [board_info $dest exists multilib_flags] {
        append add_flags " [board_info $dest multilib_flags]";
    }

    verbose "doing compile"

    set sources ""
    if [is_remote host] {
        foreach x $source {
            set file [remote_download host $x];
            if { $file == "" } {
                warning "Unable to download $x to host."
                return "Unable to download $x to host."
            } else {
                append sources " $file";
            }
        }
    } else {
        set sources $source
    }

    if [is_remote host] {
        append add_flags " -o a.out"
        remote_file host delete a.out;
    } else {
        if { $destfile != "" } {
            append add_flags " -o $destfile";
        }
    }

    # This is obscure: we put SOURCES at the end when building an
    # object, because otherwise, in some situations, libtool will
    # become confused about the name of the actual source file.
    if {$type == "object"} {
        set opts "$add_flags $sources"
    } else {
        set opts "$sources $add_flags"
    }

    if [is_remote host] {
        if [host_info exists use_at] {
            set fid [open "atfile" "w"];
            puts $fid "$opts";
            close $fid;
            set opts "@[remote_download host atfile]"
            remote_file build delete atfile
        }
    }

    verbose "Invoking the compiler as $compiler $opts" 2

    if [info exists redirect] {
        verbose "Redirecting output to $redirect" 2
        set status [remote_exec host "$compiler $opts" "" "" $redirect];
    } else {
        if [info exists timeout] {
            verbose "Setting timeout to $timeout" 2
            set status [remote_exec host "$compiler $opts" "" "" "" $timeout];
        } else {
            set status [remote_exec host "$compiler $opts"];
        }
    }

    set compiler_flags $opts
    if [is_remote host] {
        remote_upload host a.out $destfile;
        remote_file host delete a.out;
    }
    set comp_output [prune_warnings [lindex $status 1]];
    regsub "^\[\r\n\]+" $comp_output "" comp_output;
    if { [lindex $status 0] != 0 } {
        verbose -log "compiler exited with status [lindex $status 0]";
    }
    if { [lindex $status 1] != "" } {
        verbose -log "output is:\n[lindex $status 1]" 2;
    }
    if { [lindex $status 0] != 0 && "${comp_output}" == "" } {
        set comp_output "exit status is [lindex $status 0]";
    }
    return ${comp_output};
}

# See if the version of dejaGNU being used to run the testsuite is
# recent enough to contain support for building Ada programs or not.
# If not, then use the functions above in place of the ones provided
# by dejaGNU. This is only temporary (brobecker/2004-03-31).

if {[info procs find_gnatmake] == ""} {
  proc find_gnatmake { } { return [gdb_find_gnatmake] }
  proc default_target_compile { source destfile type options } {
    return [gdb_default_target_compile $source $destfile $type $options]
  }
}

# Compile some Ada code.

proc gdb_compile_ada {source dest type options} {

    set srcdir [file dirname $source]
    set gprdir [file dirname $srcdir]
    set objdir [file dirname $dest]

    append options " ada"
    append options " additional_flags=-P$gprdir/gnat_ada"
    append options " additional_flags=-XSRC=[file tail $srcdir]"
    append options " additional_flags=-XOBJ=$objdir"

    set result [target_compile [file tail $source] $dest $type $options]

    # The Ada build always produces some output, even when the build
    # succeeds. Thus, we can not use the output the same way we do in
    # gdb_compile to determine whether the build has succeeded or not.
    # We therefore simply check whether the dest file has been created
    # or not. Unless not present, the build has succeeded.
    if [file exists $dest] { set result "" }
    gdb_compile_test $source $result
    return $result
}