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      1 # Expect script for export table in executables tests
      2 #   Copyright (C) 2003-2016 Free Software Foundation, Inc.
      3 #
      4 # This file is part of the GNU Binutils.
      5 #
      6 # This program is free software; you can redistribute it and/or modify
      7 # it under the terms of the GNU General Public License as published by
      8 # the Free Software Foundation; either version 3 of the License, or
      9 # (at your option) any later version.
     10 #
     11 # This program is distributed in the hope that it will be useful,
     12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 # GNU General Public License for more details.
     15 #
     16 # You should have received a copy of the GNU General Public License
     17 # along with this program; if not, write to the Free Software
     18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     19 # MA 02110-1301, USA.
     20 #
     21 # Written by Fabrizio Gennari <fabrizio.ge (at) tiscalinet.it>
     22 # Based on auto-import.exp  by Ralf.Habacker (at) freenet.de
     23 #
     24 
     25 # This test can only be run on a cygwin platforms.
     26 if {![istarget *-pc-cygwin]} {
     27     verbose "Not a cygwin target."
     28     return
     29 }
     30 
     31 # No compiler, no test.
     32 if { [which $CC] == 0 } {
     33     untested "Exe export test (no compiler available)"
     34     return
     35 }
     36 
     37 proc run_dlltool { lib_file def_file } {
     38     global dlltool
     39     global base_dir
     40     global as
     41 
     42     if ![info exists dlltool] then {
     43 	set dlltool [findfile $base_dir/../binutils/dlltool]
     44     }
     45 
     46     if { [which $dlltool] == 0 } then {
     47 	verbose "$dlltool does not exist"
     48 	return 0
     49     }
     50 
     51     verbose "$dlltool --as $as -l $lib_file -d $def_file"
     52     catch "exec $dlltool --as $as -l $lib_file -d $def_file" dlltool_output
     53 
     54     #remove empty lines
     55     regsub -all "\n+" $dlltool_output "" dlltool_output
     56 
     57     if [string match "" $dlltool_output] then {
     58         return 1
     59     }
     60 
     61     verbose -log "$dlltool_output"
     62     return 0
     63 }
     64 
     65 # ld_special_link
     66 #       A copy of ld_simple_link (from ld-lib.exp) with extra
     67 #       code to strip warnings about creating libraries.
     68 #
     69 proc ld_special_link { ld target objects } {
     70     global host_triplet
     71     global link_output
     72 
     73     if { [which $ld] == 0 } then {
     74 	verbose "$ld does not exist"
     75 	return 0
     76     }
     77 
     78     if [is_endian_output_format $objects] then {
     79         set flags [big_or_little_endian]
     80     } else {
     81         set flags ""
     82     }
     83 
     84     verbose -log "$ld $flags -o $target $objects"
     85     catch "exec $ld $flags -o $target $objects" link_output
     86 
     87     set exec_output [prune_warnings $link_output]
     88 
     89     # We don't care if we get a warning about a non-existent start
     90     # symbol, since the default linker script might use ENTRY.
     91     regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
     92 
     93     # We don't care if we get a message about creating a library file.
     94     regsub -all "(^|\n)(Creating library file\[^\n\]*\n?)" $exec_output "\\1" exec_output
     95 
     96     if [string match "" $exec_output] then {
     97         return 1
     98     }
     99 
    100     verbose -log "$exec_output"
    101     return 0
    102 }
    103 
    104 set tmpdir tmpdir
    105 
    106 # Set some libs needed for cygwin.
    107 set MYLDFLAGS "-Wl,--out-implib,$tmpdir/testexe.lib -nostartfiles -nostdlib"
    108 
    109 # Build an export library for testdll
    110 if ![run_dlltool $tmpdir/testdll.lib $srcdir/$subdir/testdll.def] {
    111     fail "building an export library for the shared lib"
    112     return
    113 }
    114 
    115 # Compile the executable.
    116 if ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/testexe.c $tmpdir/testexe.o] {
    117     fail "compiling executable"
    118     return
    119 }
    120 
    121 if ![ld_special_link "$CC $LDFLAGS $MYLDFLAGS -e _testexe_main@16" $tmpdir/testexe.exe "$tmpdir/testexe.o $srcdir/$subdir/testexe.def $tmpdir/testdll.lib -lkernel32"] {
    122     fail "linking executable"
    123     return
    124 }
    125 
    126 # Compile the dll.
    127 if ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/testdll.c $tmpdir/testdll.o] {
    128     fail "compiling shared lib"
    129     return
    130 }
    131 
    132 if ![ld_special_link "$CC $LDFLAGS -nostartfiles -nostdlib -e _testdll_main@12" $tmpdir/testdll.dll "$tmpdir/testdll.o $srcdir/$subdir/testdll.def $tmpdir/testexe.lib"] {
    133     fail "linking shared lib"
    134     return
    135 }
    136 
    137 # This is as far as we can go with a cross-compiler
    138 if ![isnative] then {
    139     verbose "Not running natively, so cannot execute binary"
    140     pass "Compile and link and executable with an export table"
    141     return
    142 }
    143 
    144 verbose -log "executing $tmpdir/testexe.exe"
    145 catch "exec $tmpdir/testexe.exe" prog_output
    146 
    147 set expected ""
    148 if [string match $expected $prog_output] then {
    149     pass "export table in executable"
    150 } else {
    151     verbose $prog_output
    152     fail "Output does not match expected string $expected"
    153 }
    154