2012-03-26 19:18:29 +00:00
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# Expect script for ld-auto-import tests
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2017-04-10 11:32:00 +00:00
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# Copyright (C) 2002-2017 Free Software Foundation, Inc.
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2012-03-26 19:18:29 +00:00
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#
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# This file is part of the GNU Binutils.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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# Written by Ralf.Habacker@freenet.de
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# Based on ls-shared/shared.exp by Ian Lance Taylor (ian@cygnus.com)
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#
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# Note:
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#
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# This script tests some auto-import functionality:
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#
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# A. "auto importing direct from a dll" functionality, which dramatically reduces the
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# linking time for big libraries and applications by skipping creating/using
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# import libraries. Instead it links directly to the related dll or to a symlinked
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# dll for replacing regular import libraries. The test has 6 stages:
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#
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# 1. compile and link a test dll exporting some text and data symbols and a
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# standard import library
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#
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# 2. create a symbolic link to this dll to simulate a replaced import library.
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#
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# 3. compile and link a client application with the standard import library.
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# This should produce no errors.
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#
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# 4. compile and link a client application with the created dll.
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# This should also produce no errors.
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#
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# 5. compile and link a client application using the "import library".
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# This should also produce no errors.
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#
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# 6. compile and link a client application with auto-import disabled.
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# This should produce a linking error.
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#
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# B. runtime check if there are no segfaults when importing const data variables
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#
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# This test can only be run if ld generates native executables.
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if ![isnative] then {return}
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# This test can only be run on a couple of platforms.
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# Square bracket expressions seem to confuse istarget.
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if { ![istarget *-pc-cygwin]
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&& ![istarget *-pc-mingw*] } {
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return
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}
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if [istarget *-pc-mingw*] {
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# FIXME: Add support for this target.
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unsupported "mingw currently not supported"
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}
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# No compiler, no test.
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if { [which $CC] == 0 } {
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untested "Auto import test (compiler not found)"
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return
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}
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# ld_special_link
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# link a program using ld, without including any libraries
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#
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proc ld_special_link { ld target objects } {
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global host_triplet
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global link_output
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if { [which $ld] == 0 } then {
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perror "$ld does not exist"
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return 0
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}
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if [is_endian_output_format $objects] then {
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set flags [big_or_little_endian]
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} else {
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set flags ""
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}
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verbose -log "$ld $flags -o $target $objects"
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catch "exec $ld $flags -o $target $objects" link_output
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set exec_output [prune_warnings $link_output]
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# We don't care if we get a warning about a non-existent start
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# symbol, since the default linker script might use ENTRY.
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regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
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# We don't care if we get a message about creating a library file.
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regsub -all "(^|\n)(Creating library file\[^\n\]*\n?)" $exec_output "\\1" exec_output
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if [string match "" $exec_output] then {
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return 1
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}
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verbose -log "$exec_output"
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return 0
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}
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set tmpdir tmpdir
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set SHCFLAG ""
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if [istarget *-pc-cygwin] {
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# Set some libs needed for cygwin.
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set MYLIBS "-L/usr/lib -lcygwin -L/usr/lib/w32api -lkernel32"
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# Compile the dll.
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if ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/dll.c $tmpdir/dll.o] {
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fail "compiling shared lib"
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}
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if ![ld_special_link "$ld -shared --enable-auto-import -e __cygwin_dll_entry@12 --out-implib=$tmpdir/libstandard.dll.a" $tmpdir/dll.dll "$tmpdir/dll.o $MYLIBS"] {
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fail "linking shared lib"
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}
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# Create symbolic link.
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catch "exec ln -fs dll.dll $tmpdir/libsymlinked_dll.dll.a" ln_catch
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# Compile and link the client program.
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if ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/client.c $tmpdir/client.o] {
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fail "compiling client"
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}
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# Check linking with import library.
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set msg "linking auto-import client using a standard import library"
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if [ld_special_link $ld $tmpdir/client-linklib.exe "--enable-auto-import --enable-runtime-pseudo-reloc /lib/crt0.o $tmpdir/client.o -L$tmpdir -lstandard $MYLIBS"] {
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pass $msg
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} else {
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fail $msg
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}
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# Check linking directly with dll.
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set msg "linking auto-import client using the dll"
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if [ld_special_link $ld $tmpdir/client-linkdll.exe "--enable-auto-import --enable-runtime-pseudo-reloc /lib/crt0.o $tmpdir/client.o -L$tmpdir -ldll $MYLIBS"] {
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pass $msg
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} else {
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fail $msg
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}
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# Check linking with symlinked dll.
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set msg "linking auto-import client using symbolic linked dll"
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if [ld_special_link $ld $tmpdir/client-symlinkeddll.exe "--enable-auto-import --enable-runtime-pseudo-reloc /lib/crt0.o $tmpdir/client.o -L$tmpdir -lsymlinked_dll $MYLIBS"] {
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pass $msg
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} else {
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fail $msg
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}
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# Check linking with disabled auto-import, this must produce linking error.
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set msg "linking with disabled auto-import"
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if ![ld_special_link $ld $tmpdir/client-failed.exe "--disable-auto-import --enable-runtime-pseudo-reloc /lib/crt0.o $tmpdir/client.o -L$tmpdir -ldll $MYLIBS"] {
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pass $msg
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} else {
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fail $msg
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}
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# Check that the app works - ie that there is output when the applications runs.
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set msg "application runtime segfault check"
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catch "exec $tmpdir/client-linklib.exe" exec_output
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if ![string match "" $exec_output] then {
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pass $msg
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} else {
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fail $msg
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}
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}
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