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# Copyright (C) 2001, 2002, 2003, 2004, 2009, 2010, 2011

# 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; see the file COPYING3.  If not see

# .

# Define libmudflap callbacks for dg.exp.

# This file is a copy of libstdc++-v3's dejagnu driver, with minor changes.

# Useful hook:  if ${hostname}_init exists, it will be called, almost

# the last thing before testing begins.  This can be defined in, e.g.,

# ~/.dejagnurc or $DEJAGNU.

proc load_gcc_lib { filename } {

    global srcdir

    load_file $srcdir/../../gcc/testsuite/lib/$filename

}

load_lib mfdg.exp

load_lib libgloss.exp

load_gcc_lib target-libpath.exp

load_gcc_lib target-supports.exp

load_gcc_lib timeout.exp

load_gcc_lib timeout-dg.exp

proc libmudflap-init { language } {

    global env

    global srcdir outdir blddir objdir tool_root_dir

    global cxx cxxflags

    global includes

    global libs

    global gluefile wrap_flags

    global ld_library_path

    switch $language {

        "c" { set cxx [find_gcc] }

        "c++" { set cxx [find_g++] }

        default { error "bad language code $language"; return }

    }

    verbose -log "libmudflap-init $cxx"

    set blddir [lookfor_file [get_multilibs] libmudflap]

    set cxxblddir [lookfor_file [get_multilibs] libstdc++-v3]

    set cxxflags_file "${cxxblddir}/scripts/testsuite_flags"

    # By default, we assume we want to run program images.

    global dg-do-what-default

    set dg-do-what-default run

    # set LD_LIBRARY_PATH so that libgcc_s, libstdc++ binaries can be found.

    # locate libgcc.a so we don't need to account for different values of

    # SHLIB_EXT on different platforms

    set gccdir [lookfor_file $tool_root_dir gcc/libgcc.a]

    if {$gccdir != ""} {

        set gccdir [file dirname $gccdir]

    }

    set ld_library_path "."

    append ld_library_path ":${gccdir}"

    append ld_library_path ":${cxxblddir}/src/.libs"

    if {[is_remote host] == 0} {

        foreach i "[exec ${gccdir}/xgcc --print-multi-lib]" {

            set mldir ""

            regexp -- "\[a-z0-9=_/\.-\]*;" $i mldir

            set mldir [string trimright $mldir "\;@"]

            if { "$mldir" == "." } {

                continue

            }

            if { [llength [glob -nocomplain ${gccdir}/${mldir}/libgcc_s*.so.*]] >= 1 } {

                append ld_library_path ":${gccdir}/${mldir}"

            }

        }

    }

    append ld_library_path ":${blddir}/.libs"

    set libs "-L${blddir}/.libs"

    set cxxflags "-ggdb3 -DDEBUG_ASSERT"

    set includes "-I${srcdir} -I${srcdir}/.. -I.."

    if {$language == "c++"} {

        if {[file exists $cxxflags_file]} then {

            set includes "${includes} [exec sh $cxxflags_file --build-includes]"

            set cxxflags "${cxxflags} [exec sh $cxxflags_file --cxxflags]"

            # c++ libs are included by --build-cxx below

            set cxx "[exec sh $cxxflags_file --build-cxx]"

        } else {

            lappend libs "-L${cxxblddir}src/.libs"

            lappend includes "-I../../libstdc++-v3/include"

        }

    }

    global mfconfig_libs

    global add_flags

    append add_flags " $mfconfig_libs"

    set_ld_library_path_env_vars

    if [info exists env(LD_LIBRARY_PATH)] {

        verbose -log "LD_LIBRARY_PATH = $env(LD_LIBRARY_PATH)"

    }

    if { [target_info needs_status_wrapper]!=""} {

      file delete ${objdir}/testglue.o;

      set gluefile ${objdir}/testglue.o;

      set result [build_wrapper $gluefile];

      if { $result != "" } {

          set gluefile [lindex $result 0];

          set wrap_flags [lindex $result 1];

      } else {

          unset gluefile

      }

    }

    # If there is no static library then don't run tests with -static.

    global tool

    global mfconfig_libs

    set opts "additional_flags=-static"

    lappend opts "additional_flags=-fmudflap"

    lappend opts "additional_flags=-lmudflap"

    lappend opts "libs=$mfconfig_libs"

    set src stlm[pid].c

    set exe stlm[pid].x

    set f [open $src "w"]

    puts $f "int main () { }"

    close $f

    set lines [${tool}_target_compile $src $exe executable "$opts"]

    file delete $src

    remote_file build delete $exe

    if { ![string match "" $lines] } {

        # Compilation failed; assume static library is not available.

        global MUDFLAP_FLAGS

        set i [lsearch $MUDFLAP_FLAGS "*static*"]

        set MUDFLAP_FLAGS [lreplace $MUDFLAP_FLAGS $i $i]

    }

}

proc libmudflap-dg-test { prog do_what extra_tool_flags } {

    # Set up the compiler flags, based on what we're going to do.

    switch $do_what {

        "preprocess" {

            set compile_type "preprocess"

            set output_file "[file rootname [file tail $prog]].i"

        }

        "compile" {

            set compile_type "assembly"

            set output_file "[file rootname [file tail $prog]].s"

        }

        "assemble" {

            set compile_type "object"

            set output_file "[file rootname [file tail $prog]].o"

        }

        "link" {

            set compile_type "executable"

            set output_file "./[file rootname [file tail $prog]].exe"

        }

        "run" {

            set compile_type "executable"

            # FIXME: "./" is to cope with "." not being in $PATH.

            # Should this be handled elsewhere?

            # YES.

            set output_file "./[file rootname [file tail $prog]].exe"

            # This is the only place where we care if an executable was

            # created or not.  If it was, dg.exp will try to run it.

            remote_file build delete $output_file;

        }

        default {

            perror "$do_what: not a valid dg-do keyword"

            return ""

        }

    }

    set options ""

    if { $extra_tool_flags != "" } {

        lappend options "additional_flags=$extra_tool_flags"

    }

    global mfconfig_libs

    lappend options "libs=$mfconfig_libs"

    set comp_output [libmudflap_target_compile "$prog" "$output_file" "$compile_type" $options];

    return [list $comp_output $output_file]

}

proc libmudflap_target_compile { source dest type options } {

    global gluefile

    global wrap_flags

    global cxx

    global cxxflags

    global includes

    global libs

    global blddir

    if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {

        lappend options "libs=${gluefile}"

        lappend options "ldflags=${wrap_flags}"

    }

    set cxx_final $cxx

    set cxxlibglossflags  [libgloss_link_flags]

    set cxx_final [concat $cxx_final $cxxlibglossflags]

    set cxx_final [concat $cxx_final $cxxflags]

    set cxx_final [concat $cxx_final $includes]

    set cxx_final [concat $cxx_final $libs]

    lappend options "compiler=$cxx_final"

    lappend options "timeout=[timeout_value]"

    # Picks up the freshly-built testsuite library corresponding to the

    # multilib under test.

    lappend options "ldflags=-L${blddir}/testsuite"

    return [target_compile $source $dest $type $options]

}

# A bit sloppy...  Returns a list of source files (full pathnames) to

# compile.  We mimic the mkcheck script in that the first time this is run,

# all existing files are listed in "testsuite_files" in the output

# directory.  Subsequent runs pull the list from that file, allowing users

# to trim the list down to problematic tests.

### This is supposed to be done via RUNTESTFLAGS, but that doesn't work.

proc libmudflap-list-sourcefiles { } {

    global srcdir

    global outdir

    set files_file "${outdir}/testsuite_files"

    set sfiles ""

    if { [file exists $files_file] } {

        set f [open $files_file]

        while { ! [eof $f] } {

            set t [gets $f]

            if { [string length "$t"] != 0 } {

                lappend sfiles ${srcdir}/${t}

            }

        }

    } else {

        set f [open $files_file "w"]

        set where_we_were [pwd]

        cd $srcdir

        foreach s [lsort [glob -nocomplain "*/*.cc" "*/*/*.cc" "{,*/}*/*/*/*.cc" ]] {

            lappend sfiles ${srcdir}/${s}

            puts $f $s

        }

        cd $where_we_were

    }

    close $f

    # Disable wchar_t tests if library not configured to support

    # wchar_t testing.

    set wchar_file "${outdir}/testsuite_wchar_t"

    if { [file exists $wchar_file] } {

        return $sfiles

    } else {

        # Remove wchar_t tests files from list.

        set res {}

        foreach w $sfiles {

            if [regexp "wchar_t" $w] {

                verbose -log "element out list is $w"

            } else {

                verbose -log "element in list is $w"

                lappend res $w

            }

        }

        return $res

    }

}

proc libmudflap-dg-prune { system text } {

    global additional_prunes

    set text [prune_gcc_output $text]

    foreach p $additional_prunes {

        if { [string length $p] > 0 } {

            # Following regexp matches a complete line containing $p.

            regsub -all "(^|\n)\[^\n\]*$p\[^\n\]*" $text "" text

        }

    }

    return $text

}

proc prune_gcc_output { text } {

    regsub -all {(^|\n)[^\n]*ld: warning: libgcc_s[^\n]*not found[^\n]*try using[^\n]*} $text "" text

    regsub -all {(^|\n)[^\n]*In function.*pthread_create[^\n]*} $text "" text

    regsub -all {(^|\n)[^\n]*the use of .pthread.*is deprecated[^\n]*} $text "" text

    regsub -all {(^|\n)[^\n]*Dwarf Error:.*FORM value: 14[^\n]*} $text "" text

    regsub -all {(^|\n)[^\n]*In function[^\n]*} $text "" text

    regsub -all {(^|\n)[^\n]*Using.*in statically linked applications requires[^\n]*} $text "" text

    return $text

}