[Bug testsuite/42843] New: --enable-build-with-cxx plugin tests fail

["amylaar at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

When configuring with --enable-build-with-cxx, most of the exported symbols
in cc1 / cc1plus etc end up with the c++ mangled name.
As the testsuite still compiles plugins with gcc to link against these
compiler binaries, the dso load fails with unresolved symbols:

[amylaar@laria bld-gcc-cxx19]$ grep FAIL check.out |grep plug
FAIL: g++.dg/plugin/attribute_plugin-test-1.C -fplugin=./attribute_plugin.so 
(test for warnings, line )
FAIL: g++.dg/plugin/attribute_plugin-test-1.C -fplugin=./attribute_plugin.so 
(test for warnings, line 7)
FAIL: g++.dg/plugin/attribute_plugin-test-1.C -fplugin=./attribute_plugin.so 
(test for warnings, line 7)
FAIL: g++.dg/plugin/attribute_plugin-test-1.C -fplugin=./attribute_plugin.so 
(test for warnings, line 16)
FAIL: g++.dg/plugin/attribute_plugin-test-1.C -fplugin=./attribute_plugin.so
(test for excess errors)
FAIL: g++.dg/plugin/pragma_plugin-test-1.C -fplugin=./pragma_plugin.so  (test
for warnings, line )
FAIL: g++.dg/plugin/pragma_plugin-test-1.C -fplugin=./pragma_plugin.so  (test
for warnings, line 5)
FAIL: g++.dg/plugin/pragma_plugin-test-1.C -fplugin=./pragma_plugin.so  (test
for warnings, line 9)
FAIL: g++.dg/plugin/pragma_plugin-test-1.C -fplugin=./pragma_plugin.so  (test
for warnings, line 14)
FAIL: g++.dg/plugin/pragma_plugin-test-1.C -fplugin=./pragma_plugin.so (test
for excess errors)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 10)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 13)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 26)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 27)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 33)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 34)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 40)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 41)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 42)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 43)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 44)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 46)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for
warnings, line 47)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so (test for
excess errors)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 10)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 13)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 26)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 27)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 33)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 34)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 40)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 41)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 42)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 46)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for
warnings, line 47)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so (test for
excess errors)
FAIL: g++.dg/plugin/self-assign-test-3.C -fplugin=./selfassign.so (test for
excess errors)
FAIL: g++.dg/plugin/dumb-plugin-test-1.C -fplugin=./dumb_plugin.so  (test for
warnings, line 10)
FAIL: g++.dg/plugin/dumb-plugin-test-1.C -fplugin=./dumb_plugin.so  (test for
warnings, line 14)
FAIL: g++.dg/plugin/dumb-plugin-test-1.C -fplugin=./dumb_plugin.so  (test for
warnings, line 18)
FAIL: g++.dg/plugin/dumb-plugin-test-1.C -fplugin=./dumb_plugin.so  (test for
warnings, line 19)
FAIL: g++.dg/plugin/dumb-plugin-test-1.C -fplugin=./dumb_plugin.so  (test for
warnings, line 24)
FAIL: g++.dg/plugin/dumb-plugin-test-1.C -fplugin=./dumb_plugin.so  (test for
warnings, line 50)
FAIL: g++.dg/plugin/dumb-plugin-test-1.C -fplugin=./dumb_plugin.so  (test for
warnings, line 50)
FAIL: g++.dg/plugin/dumb-plugin-test-1.C -fplugin=./dumb_plugin.so  (test for
warnings, line 50)
FAIL: g++.dg/plugin/dumb-plugin-test-1.C -fplugin=./dumb_plugin.so (test for
excess errors)
FAIL: gcc.dg/plugin/self-assign-test-1.c -fplugin=./selfassign.so  (test for
warnings, line 15)
FAIL: gcc.dg/plugin/self-assign-test-1.c -fplugin=./selfassign.so  (test for
warnings, line 19)
FAIL: gcc.dg/plugin/self-assign-test-1.c -fplugin=./selfassign.so  (test for
warnings, line 20)
FAIL: gcc.dg/plugin/self-assign-test-1.c -fplugin=./selfassign.so  (test for
warnings, line 21)
FAIL: gcc.dg/plugin/self-assign-test-1.c -fplugin=./selfassign.so  (test for
warnings, line 22)
FAIL: gcc.dg/plugin/self-assign-test-1.c -fplugin=./selfassign.so (test for
excess errors)
FAIL: gcc.dg/plugin/self-assign-test-2.c -fplugin=./selfassign.so (test for
excess errors)
FAIL: gcc.dg/plugin/ggcplug-test-1.c -fplugin=./ggcplug.so (test for excess
errors)
FAIL: gcc.dg/plugin/one_time-test-1.c -fplugin=./one_time_plugin.so (test for
excess errors)
FAIL: gcc.dg/plugin/start_unit-test-1.c -fplugin=./start_unit_plugin.so (test
for excess errors)
FAIL: gcc.dg/plugin/finish_unit-test-1.c -fplugin=./finish_unit_plugin.so (test
for excess errors)

When -enable-build-with-cxx is in effect, the testsuite should use g++
to compile GCC plugins.


-- 
           Summary: --enable-build-with-cxx plugin tests fail
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: amylaar at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42843