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authorNick Clifton <nickc@redhat.com>2002-12-18 16:05:10 +0000
committerNick Clifton <nickc@redhat.com>2002-12-18 16:05:10 +0000
commit6bdf432d0396b82f47cd1fdc2d0e76a3b0e11ca2 (patch)
tree16c7218c3573f9d73b66ac15c706c3e22b28f1e9 /ld/testsuite/ld-auto-import
parentc9012c710642d6bb7ad0065a1099e3d3c7710d28 (diff)
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Test the auto importing direct from a dll functionality.
Diffstat (limited to 'ld/testsuite/ld-auto-import')
-rw-r--r--ld/testsuite/ld-auto-import/auto-import.exp160
-rw-r--r--ld/testsuite/ld-auto-import/client.c55
-rw-r--r--ld/testsuite/ld-auto-import/dll.c20
3 files changed, 235 insertions, 0 deletions
diff --git a/ld/testsuite/ld-auto-import/auto-import.exp b/ld/testsuite/ld-auto-import/auto-import.exp
new file mode 100644
index 0000000..659e702
--- /dev/null
+++ b/ld/testsuite/ld-auto-import/auto-import.exp
@@ -0,0 +1,160 @@
+# 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"
+}
diff --git a/ld/testsuite/ld-auto-import/client.c b/ld/testsuite/ld-auto-import/client.c
new file mode 100644
index 0000000..9ed80c5
--- /dev/null
+++ b/ld/testsuite/ld-auto-import/client.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+
+extern int var;
+extern void (*func_ptr)(void);
+extern void print_var (void);
+extern void print_foo (void);
+extern int foo;
+extern int var2[2];
+
+typedef struct
+{
+ int * var;
+ void (* func_ptr)(void);
+}
+TEST;
+
+TEST xyz = { &var, print_var };
+
+int
+main (void)
+{
+ print_var ();
+
+ printf ("We see var = %d\n", var);
+ printf ("Setting var = 456\n");
+
+ var = 456;
+
+ print_var ();
+ printf ("We see var = %d\n\n", var);
+
+ var = 90;
+ print_var ();
+ printf ("We see var = %d\n\n", var);
+
+ print_foo ();
+ printf ("We see foo = %d\n", foo);
+ printf ("Setting foo = 19\n");
+ foo = 19;
+ print_foo ();
+ printf ("We see foo = %d\n\n", foo);
+ fflush (stdout);
+
+ printf ("Calling dllimported function pointer\n");
+ func_ptr ();
+
+ printf ("Calling functions using global structure\n");
+ xyz.func_ptr ();
+ * xyz.var = 40;
+ xyz.func_ptr ();
+
+ printf ("We see var2[0] = %d\n\n", var2[0]);
+
+ return 0;
+}
diff --git a/ld/testsuite/ld-auto-import/dll.c b/ld/testsuite/ld-auto-import/dll.c
new file mode 100644
index 0000000..ccf85e4
--- /dev/null
+++ b/ld/testsuite/ld-auto-import/dll.c
@@ -0,0 +1,20 @@
+int var = 123;
+int foo = 121;
+
+int var2[2]= { 123, 456 };
+
+#include <stdio.h>
+
+void
+print_var (void)
+{
+ printf ("DLL sees var = %d\n", var);
+}
+
+void
+print_foo (void)
+{
+ printf ("DLL sees foo = %d\n", foo);
+}
+
+void (* func_ptr)(void) = print_foo;