Re: [Patch] compile libgomp.c++/pr30703.C with -shared-libgcc

[Andreas Tobler <toa at pop dot agri dot ch>]

The issue was handled here, at least the preconditions.

http://gcc.gnu.org/ml/gcc-patches/2007-01/msg00082.html

But it has never been discussed to an end.

I have a patch pending for darwin which should solve this, but as long 
as it is not clear on how to go on with the ILP32 issue I did not submit it.

Another part is the shared lib only build. Here I already got an ok from 
RTH. But I did not submit due to the above reasons.

It was a private ack.

So maybe we can find now a decision or a way top go.

The attached patch lives since jan in my repos on darwin*, linux-ppc, 
sparc-solaris and HPUX PA-32-bit.

Andreas

Index: testsuite/libgomp.c++/c++.exp
===================================================================
--- testsuite/libgomp.c++/c++.exp	(revision 122945)
+++ testsuite/libgomp.c++/c++.exp	(working copy)
@@ -1,14 +1,34 @@
-set lang_library_path	"../libstdc++-v3/src/.libs"
-set lang_test_file	"${lang_library_path}/libstdc++.a"
-set lang_link_flags	"-lstdc++"
-
 load_lib libgomp-dg.exp
+load_gcc_lib target-supports.exp
+load_gcc_lib target-libpath.exp
 
+global shlib_ext
+
+set shlib_ext [get_shlib_extension]
+set lang_link_flags "-lstdc++" 
+set lang_test_file_found 0
+set lang_library_path "../libstdc++-v3/src/.libs"
+
 # Initialize dg.
 dg-init
+ 
+set blddir [lookfor_file [get_multilibs] libgomp]
 
-if [file exists "${blddir}/${lang_test_file}"] {
+# Look for a static libstdc++ first.
+if [file exists "${blddir}/${lang_library_path}/libstdc++.a"] {
+    set lang_test_file "${lang_library_path}/libstdc++.a"
+    set lang_test_file_found 1
+# We may have a shared only build, so look for a shared libstdc++.
+} elseif [file exists "${blddir}/${lang_library_path}/libstdc++.${shlib_ext}"] {
+    set lang_test_file "${lang_library_path}/libstdc++.${shlib_ext}"
+    set lang_test_file_found 1
+} else {
+    puts "No libstdc++ library found, will not execute c++ tests"
+}
 
+libgomp_init
+
+if { $lang_test_file_found } {
     # Gather a list of all tests.
     set tests [lsort [glob -nocomplain $srcdir/$subdir/*.C]]
 
Index: testsuite/libgomp.fortran/fortran.exp
===================================================================
--- testsuite/libgomp.fortran/fortran.exp	(revision 122945)
+++ testsuite/libgomp.fortran/fortran.exp	(working copy)
@@ -6,6 +6,7 @@
 
 # Initialize dg.
 dg-init
+libgomp_init
 
 if [file exists "${blddir}/${lang_test_file}"] {
 
Index: testsuite/lib/libgomp-dg.exp
===================================================================
--- testsuite/lib/libgomp-dg.exp	(revision 122945)
+++ testsuite/lib/libgomp-dg.exp	(working copy)
@@ -130,9 +130,12 @@
     }
 
     # We use atomic operations in the testcases to validate results.
-    if [istarget i?86-*-*] {
+    if { [istarget "i?86-*-*"] && [is-effective-target ilp32] } {
 	lappend ALWAYS_CFLAGS "additional_flags=-march=i486"
     }
+    if [istarget *-*-darwin*] {
+	lappend ALWAYS_CFLAGS "additional_flags=-shared-libgcc"
+    }
     if [istarget sparc*-*-*] {
 	lappend ALWAYS_CFLAGS "additional_flags=-mcpu=v9"
     }
@@ -160,8 +163,6 @@
     global ALWAYS_CFLAGS
     global GCC_UNDER_TEST
 
-    libgomp_init
-
     if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {
 	lappend options "libs=${gluefile}"
 	lappend options "ldflags=${wrap_flags}"
Index: testsuite/libgomp.c/c.exp
===================================================================
--- testsuite/libgomp.c/c.exp	(revision 122945)
+++ testsuite/libgomp.c/c.exp	(working copy)
@@ -13,6 +13,7 @@
 
 # Initialize dg.
 dg-init
+libgomp_init
 
 # Gather a list of all tests.
 set tests [lsort [find $srcdir/$subdir *.c]]