# Expect script for ld-auto-import tests # Copyright 2002 # Free Software Foundation, Inc. # # This file 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # # Written by Ralf.Habacker@freenet.de # Based on ls-shared/shared.exp by Ian Lance Taylor (ian@cygnus.com) # # Note: # # This test checks the "auto importing direct from a dll" functionality, # which dramatically reduces the linking time for big libraries and applications # by skipping creating/using import libraries. Instead it links directly to the # related dll or to a symlinked dll for replacing regular import libraries. # # The test has 4 stages: # # 1. compile and link a test dll exporting some text and data symbols and a # standard import library # # 2. create a symbolic link to this dll to simulate a replaced import library. # # 3. compile and link a client application with the standard import library. # This should produce no errors. # # 4. compile and link a client application with the created dll. # This should also produce no errors. # # 5. compile and link a client application using the "import library". # This should also produce no errors. # # 6. compile and link a client application with auto-import disabled. # This should produce a linking error. # 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. if { ![istarget *-pc-cygwin] && ![istarget *-pc-mingw*] } { return } # No compiler, no test. if { [which $CC] == 0 } { untested "Auto import test" return } # ld_special_link # link a program using ld, without including any libraries # proc ld_special_link { ld target objects } { global host_triplet global link_output if { [which $ld] == 0 } then { perror "$ld does not exist" return 0 } if [is_endian_output_format $objects] then { set flags [big_or_little_endian] } else { set flags "" } verbose -log "$ld $flags -o $target $objects" catch "exec $ld $flags -o $target $objects" link_output set exec_output [prune_warnings $link_output] # We don't care if we get a warning about a non-existent start # symbol, since the default linker script might use ENTRY. regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output # We don't care if we get a message about creating a library file. regsub -all "(^|\n)(Creating library file\[^\n\]*\n?)" $exec_output "\\1" exec_output if [string match "" $exec_output] then { return 1 } else { verbose -log "$exec_output" return 0 } } set tmpdir tmpdir set SHCFLAG "" if [istarget *-pc-cygwin] { # Set some libs needed for cygwin. set MYLIBS "-L/usr/lib -lcygwin -L/usr/lib/w32api -lkernel32" # Compile the dll. if ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/dll.c $tmpdir/dll.o ] { fail "compiling shared lib" } elseif ![ld_special_link "$ld -shared --out-implib=$tmpdir/libstandard.dll.a" $tmpdir/dll.dll "$tmpdir/dll.o $MYLIBS" ] { fail "linking shared lib" } else { # Create symbolic link. catch "exec ln -fs dll.dll $tmpdir/libsymlinked_dll.dll.a" ln_catch # Compile and link the client program. if ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/client.c $tmpdir/client.o ] { fail "compiling client" } else { # Check linking with import library. set msg "linking auto-import client using a standard import library" if [ld_special_link $ld $tmpdir/client.exe "--enable-auto-import /lib/crt0.o $tmpdir/client.o -L$tmpdir -lstandard $MYLIBS" ] { pass $msg } else { fail $msg } # Check linking directly with dll. set msg "linking auto-import client using the dll" if [ld_special_link $ld $tmpdir/client.exe "--enable-auto-import /lib/crt0.o $tmpdir/client.o -L$tmpdir -ldll $MYLIBS" ] { pass $msg } else { fail $msg } # Check linking with symlinked dll. set msg "linking auto-import client using symbolic linked dll" if [ld_special_link $ld $tmpdir/clientimport.exe "--enable-auto-import /lib/crt0.o $tmpdir/client.o -L$tmpdir -lsymlinked_dll $MYLIBS" ] { pass $msg } else { fail $msg } # Check linking with disabled auto-import, this must produce linking error. set msg "linking with disabled auto-import" if ![ld_special_link $ld $tmpdir/clientimport.exe "--disable-auto-import /lib/crt0.o $tmpdir/client.o -L$tmpdir -ldll $MYLIBS" ] { pass $msg } else { fail $msg } } } } if [istarget *-pc-mingw*] { unsupported "mingw currently not supported" }
