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# Expect script for ld-weak tests
#   Copyright 2001, 2002, 2003, 2004, 2005, 2007, 2010
#   Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# Written by H.J. Lu (hjl@gnu.org)
#            Eric Youngdale (eric@andante.jic.com)
#

# This test can only be run if ld generates native executables.
if ![isnative] then {return}

# This test can only be run on a couple of ELF platforms.
# Square bracket expressions seem to confuse istarget.
# This is similar to the test that is used in ld-shared, BTW.
if {    ![istarget alpha*-*-linux*]
     && ![istarget arm*-*-linux*]
     && ![istarget hppa*64*-*-hpux*]
     && ![istarget hppa*-*-linux*]
     && ![istarget i?86-*-sysv4*]
     && ![istarget i?86-*-unixware]
     && ![istarget i?86-*-elf*]
     && ![istarget i?86-*-linux*]
     && ![istarget i?86-*-gnu*]
     && ![istarget ia64-*-elf*]
     && ![istarget ia64-*-linux*]
     && ![istarget m68k-*-linux*]
     && ![istarget mips*-*-irix5*]
     && ![istarget mips*-*-linux*]
     && ![istarget powerpc*-*-elf*]
     && ![istarget powerpc*-*-linux*]
     && ![istarget powerpc*-*-sysv4*]
     && ![istarget sh\[34\]*-*-linux*]
     && ![istarget sparc*-*-elf]
     && ![istarget sparc*-*-solaris2*]
     && ![istarget sparc*-*-linux*] } {
    return
}

if { [istarget *-*-linux*aout*]
     || [istarget *-*-linux*oldld*] } {
    return
}

if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
    return
}

set diff diff
set tmpdir tmpdir
set DOBJDUMP_FLAGS --dynamic-syms
set SOBJDUMP_FLAGS --syms
set shared --shared


# <http://www.gnu.org/software/hurd/open_issues/binutils.html#weak>
proc setup_xfail_gnu_hurd {} {
    global target_triplet
    # Be cautious to not XFAIL for *-*-linux-gnu*, *-*-kfreebsd-gnu*, etc.
    switch -regexp $target_triplet {
        ^\[^-\]*-\[^-\]*-gnu.*$ {
            setup_xfail "*-*-*"
        }
    }
}

#
# objdump_symstuff
#       Dump non-dynamic symbol stuff and make sure that it is sane.
#
proc objdump_symstuff { objdump object expectfile } {
    global SOBJDUMP_FLAGS
    global version_output
    global diff
    global tmpdir

    if ![info exists SOBJDUMP_FLAGS] { set SOBJDUMP_FLAGS "" }

    verbose -log "$objdump $SOBJDUMP_FLAGS $object | grep foo$  > $tmpdir/objdump.out"

    catch "exec $objdump $SOBJDUMP_FLAGS $object | grep foo$  > $tmpdir/objdump.out" exec_output
    set exec_output [prune_warnings $exec_output]
    if [string match "" $exec_output] then {

# Now do a line-by-line comparison to effectively diff the darned things
# The stuff coming from the expectfile is actually a regex, so we can
# skip over the actual addresses and so forth.  This is currently very
# simpleminded - it expects a one-to-one correspondence in terms of line
# numbers.

        if [file exists $expectfile] then {
            set file_a [open $expectfile r]
        } else {
            perror "$expectfile doesn't exist"
            return 0
        }
        
        if [file exists $tmpdir/objdump.out] then {
            set file_b [open $tmpdir/objdump.out r]
        } else {
            perror "$tmpdir/objdump.out doesn't exist"
            return 0
        }

        verbose "# Diff'ing: $expectfile $tmpdir/objdump.out" 2

        set eof -1
        set differences 0

        while { [gets $file_a line] != $eof } {
            if [regexp "^#.*$" $line] then {
                continue
            } else {
                lappend list_a $line
            }
        }
        close $file_a

        while { [gets $file_b line] != $eof } {
            if [regexp "^#.*$" $line] then {
                continue
            } else {
                lappend list_b $line
            }
        }
        close $file_b
        
        for { set i 0 } { $i < [llength $list_a] } { incr i } {
            set line_a [lindex $list_a $i]
            set line_b [lindex $list_b $i]
            

            verbose "\t$expectfile: $i: $line_a" 3
            verbose "\t/tmp/objdump.out: $i: $line_b" 3
            if [regexp $line_a $line_b] then {
                continue
            } else {
                verbose -log "\t$expectfile: $i: $line_a"
                verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
                
                return 0
            }
        }
        
        if { [llength $list_a] != [llength $list_b] } {
            verbose -log "Line count"
            return 0
        }
        
        if $differences<1 then {
            return 1
        }
        
        return 0
    } else {
        verbose -log "$exec_output"
        return 0
    }

}

#
# objdump_dymsymstuff
#       Dump dynamic symbol stuff and make sure that it is sane.
#
proc objdump_dynsymstuff { objdump object expectfile } {
    global DOBJDUMP_FLAGS
    global version_output
    global diff
    global tmpdir

    if ![info exists DOBJDUMP_FLAGS] { set DOBJDUMP_FLAGS "" }

    verbose -log "$objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out"

    catch "exec $objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out" exec_output
    set exec_output [prune_warnings $exec_output]
    if [string match "" $exec_output] then {

# Now do a line-by-line comparison to effectively diff the darned things
# The stuff coming from the expectfile is actually a regex, so we can
# skip over the actual addresses and so forth.  This is currently very
# simpleminded - it expects a one-to-one correspondence in terms of line
# numbers.

        if [file exists $expectfile] then {
            set file_a [open $expectfile r]
        } else {
            warning "$expectfile doesn't exist"
            return 0
        }
        
        if [file exists $tmpdir/objdump.out] then {
            set file_b [open $tmpdir/objdump.out r]
        } else {
            fail "$tmpdir/objdump.out doesn't exist"
            return 0
        }

        verbose "# Diff'ing: $expectfile $tmpdir/objdump.out" 2

        set eof -1
        set differences 0

        while { [gets $file_a line] != $eof } {
            if [regexp "^#.*$" $line] then {
                continue
            } else {
                lappend list_a $line
            }
        }
        close $file_a

        while { [gets $file_b line] != $eof } {
            if [regexp "^#.*$" $line] then {
                continue
            } else {
                lappend list_b $line
            }
        }
        close $file_b
        
        for { set i 0 } { $i < [llength $list_b] } { incr i } {
            set line_b [lindex $list_b $i]
            
# The tests are rigged so that we should never export a symbol with the
# word 'hide' in it.  Thus we just search for it, and bail if we find it.
            if [regexp "hide" $line_b] then {
                verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
                
                return 0
            }

            verbose "\t$expectfile: $i: $line_b" 3

            # We can't assume that the sort is consistent across
            # systems, so we must check each regexp.  When we find a
            # regexp, we null it out, so we don't match it twice.
            for { set j 0 } { $j < [llength $list_a] } { incr j } {
                set line_a [lindex $list_a $j]

                if [regexp $line_a $line_b] then {
                    lreplace $list_a $j $j "CAN NOT MATCH"
                    break
                }
            }

            if { $j >= [llength $list_a] } {
                verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
                
                return 0
            }
        }
        
        if { [llength $list_a] != [llength $list_b] } {
            verbose -log "Line count"
            return 0
        }
        
        if $differences<1 then {
            return 1
        }
        
        return 0
    } else {
        verbose -log "$exec_output"
        return 0
    }

}

proc build_lib {test libname objs dynsymexp} {
    global CC
    global objdump
    global tmpdir
    global shared
    global srcdir
    global subdir

    set files ""
    foreach obj $objs {
      set files "$files $tmpdir/$obj"
    }

    if {![ld_simple_link $CC $tmpdir/$libname.so "$shared $files"]} {
        fail $test
        return
    }

    if {![string match "" $dynsymexp]
        && ![objdump_dynsymstuff $objdump $tmpdir/$libname.so $srcdir/$subdir/$dynsymexp]} {
        fail $test
        return
    }
    pass $test
}

proc build_exec { test execname objs flags dat dynsymexp symexp} {
    global CC
    global objdump
    global tmpdir
    global shared
    global srcdir
    global subdir
    global exec_output

    set files ""
    foreach obj $objs {
      set files "$files $tmpdir/$obj"
    }

    if {![ld_simple_link $CC $tmpdir/$execname "$flags $files"]} {
        fail "$test"
        return
    }

    if {![string match "" $dynsymexp]} then {
        if {![objdump_dynsymstuff $objdump $tmpdir/$execname $srcdir/$subdir/$dynsymexp]} {
            fail $test
            return
        }
    }

    if {![string match "" $symexp]} then {
        if {![objdump_symstuff $objdump $tmpdir/$execname $srcdir/$subdir/$symexp]} {
            fail $test
            return
        }
    }

    # Run the resulting program
    send_log "$tmpdir/$execname >$tmpdir/$execname.out\n"
    verbose "$tmpdir/$execname >$tmpdir/$execname.out"
    catch "exec $tmpdir/$execname >$tmpdir/$execname.out" exec_output
    if ![string match "" $exec_output] then {
        send_log "$exec_output\n"
        verbose "$exec_output"
        fail $test
        return
    }

    send_log "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat\n"
    verbose "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat"
    catch "exec diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat" exec_output
    set exec_output [prune_warnings $exec_output]

    if {![string match "" $exec_output]} then {
        send_log "$exec_output\n"
        verbose "$exec_output"
        fail $test
        return
    }

    pass $test
}

if [istarget mips*-*-*] {
    set picflag ""
} else {
    # Unfortunately, the gcc argument is -fpic and the cc argument is
    # -KPIC.  We have to try both.
    set picflag "-fpic"
    send_log "$CC $picflag\n"
    verbose "$CC $picflag"
    catch "exec $CC $picflag" exec_output
    send_log "$exec_output\n"
    verbose "--" "$exec_output"
    if { [string match "*illegal option*" $exec_output]
         || [string match "*option ignored*" $exec_output]
         || [string match "*unrecognized option*" $exec_output]
         || [string match "*passed to ld*" $exec_output] } {
        if [istarget *-*-sunos4*] {
            set picflag "-pic"
        } else {
            set picflag "-KPIC"
        }
    }
}
verbose "Using $picflag to compile PIC code"

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/foo.c $tmpdir/foo.o] {
    unresolved "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/bar.c $tmpdir/bar.o] {
    unresolved "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/main.c $tmpdir/main.o] {
    unresolved "ELF weak"
    return
}

if {![ld_simple_link $CC $tmpdir/libbar.so "$shared $tmpdir/bar.o"]} {
    fail "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/foo1a.c $tmpdir/foo1a.o] {
    unresolved "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/foo1b.c $tmpdir/foo1b.o] {
    unresolved "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/bar1a.c $tmpdir/bar1a.o] {
    unresolved "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/bar1b.c $tmpdir/bar1b.o] {
    unresolved "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/bar1c.c $tmpdir/bar1c.o] {
    unresolved "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/main1.c $tmpdir/main1.o] {
    unresolved "ELF weak"
    return
}

if {![ld_simple_link $CC $tmpdir/libfoo1a.so "$shared $tmpdir/foo1a.o"]} {
    fail "ELF weak"
    return
}

if {![ld_simple_link $CC $tmpdir/libfoo1b.so "$shared $tmpdir/foo1b.o"]} {
    fail "ELF weak"
    return
}

if {![ld_simple_link $CC $tmpdir/libbar1a.so "$shared $tmpdir/bar1a.o $tmpdir/libfoo1a.so"]} {
    fail "ELF weak"
    return
}

build_lib "ELF DSO weak func first" libfoo "foo.o bar.o" dso.dsym
build_lib "ELF DSO weak func last" libfoo "bar.o foo.o" dso.dsym
build_lib "ELF DSO weak func first DSO" libfoo "foo.o libbar.so" dsow.dsym
build_lib "ELF DSO weak func last DSO" libfoo "libbar.so foo.o" dsow.dsym
build_exec "ELF weak func first" foo "main.o bar.o" "" strong "" strong.sym
build_exec "ELF weak func last" foo "bar.o main.o" "" strong "" strong.sym
setup_xfail_gnu_hurd
build_exec "ELF weak func first DSO" foo "main.o libbar.so" "-Wl,-rpath,." weak weak.dsym ""
setup_xfail_gnu_hurd
build_exec "ELF weak func last DSO" foo "libbar.so main.o" "-Wl,-rpath,." weak weak.dsym ""

build_lib "ELF DSO weak data first" libfoo "bar1a.o foo1a.o" dsodata.dsym
build_lib "ELF DSO weak data last" libfoo "foo1a.o bar1a.o" dsodata.dsym
build_lib "ELF DSO weak data first DSO" libfoo "main1.o libfoo1a.so" dsowdata.dsym
build_lib "ELF DSO weak data last DSO" libfoo "libfoo1a.so main1.o" dsowdata.dsym
build_lib "ELF DSO weak data first DSO common" libfoo "main1.o libfoo1b.so" dsowdata.dsym
build_lib "ELF DSO weak data last DSO common" libfoo "libfoo1b.so main1.o" dsowdata.dsym
build_exec "ELF weak data first" foo "main1.o bar1a.o foo1a.o" "" strongdata "" strongdata.sym
build_exec "ELF weak data last" foo "foo1a.o main1.o bar1a.o" "" strongdata "" strongdata.sym
build_exec "ELF weak data first common" foo "main1.o bar1a.o foo1b.o" "" strongdata "" strongcomm.sym
build_exec "ELF weak data last common" foo "foo1b.o main1.o bar1a.o" "" strongdata "" strongcomm.sym
setup_xfail_gnu_hurd
build_exec "ELF weak data first DSO" foo "main1.o libbar1a.so libfoo1a.so" "-Wl,-rpath,." weakdata weakdata.dsym ""
setup_xfail_gnu_hurd
build_exec "ELF weak data last DSO" foo "libfoo1a.so main1.o libbar1a.so" "-Wl,-rpath,." weakdata weakdata.dsym ""
setup_xfail_gnu_hurd
build_exec "ELF weak data first DSO common" foo "main1.o libbar1a.so libfoo1b.so" "-Wl,-rpath,." weakdata weakdata.dsym ""
setup_xfail_gnu_hurd
build_exec "ELF weak data last DSO common" foo "libfoo1b.so main1.o libbar1a.so" "-Wl,-rpath,." weakdata weakdata.dsym ""

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/size_foo.c $tmpdir/size_foo.o] {
    unresolved "ELF weak (size)"
    return
}

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/size_bar.c $tmpdir/size_bar.o] {
    unresolved "ELF weak (size)"
    return
}

build_lib "ELF DSO small bar (size)" libsize_bar "size_bar.o" ""
build_lib "ELF DSO foo with small bar (size)" libsize_foo "size_foo.o libsize_bar.so" ""

if ![ld_compile "$CC $CFLAGS $picflag -DSIZE_BIG" $srcdir/$subdir/size_bar.c $tmpdir/size_bar.o] {
    unresolved "ELF weak (size)"
    return
}

build_lib "ELF DSO big bar (size)" libsize_bar "size_bar.o" ""

if ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/size_main.c $tmpdir/size_main.o] {
    unresolved "ELF weak (size)"
    return
}

build_exec "ELF weak size" size_main "size_main.o libsize_foo.so libsize_bar.so" "-Wl,-rpath,." size "" ""

verbose "size2"
run_dump_test $srcdir/$subdir/size2