Date: Mon, 16 Mar 2015 07:03:49 -0700 From: Mark Millard <markmi@dsl-only.net> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>, freebsd-toolchain@freebsd.org Subject: powerpc64-xtoolchain-gcc (gcc 4.9.1) reports: /usr/srcC/lib/libnv/tests/dnv_tests.cc:453:2: error: ambiguous overload Message-ID: <90144A01-AD41-4B9A-B040-D342B60EAE02@dsl-only.net>
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Basic context (more is listed later):
# freebsd-version -ku ; uname -ap
11.0-CURRENT
11.0-CURRENT
FreeBSD FBSDG5C0 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r279514M: Wed Mar =
11 19:23:14 PDT 2015 =
root@FBSDG4C0:/usr/obj/powerpc.powerpc64/usr/srcC/sys/GENERIC64vtsc-NODEBU=
G powerpc powerpc64
With my limping-along powerpc64-xtoolchain-gcc being used on a powerpc64 =
with CROSS_TOOLCHAIN=3Dpowerpc64-gcc I recently got it as far as...
The reported ambiguous overload...
In file included from =
/usr/obj/usr/srcC/tmp/usr/include/atf-c++.hpp:29:0,^M
from /usr/srcC/lib/libnv/tests/dnv_tests.cc:30:^M
/usr/srcC/lib/libnv/tests/dnv_tests.cc: In member function 'virtual void =
{anonymous}::atfu_tc_dnvlist_take_nvlist__empty::body() const':^M
/usr/srcC/lib/libnv/tests/dnv_tests.cc:453:2: error: ambiguous overload =
for 'operator<<' (operand types are 'std::__1::basic_ostream<char>' and =
'std::nullptr_t')^M
ATF_REQUIRE_EQ(actual_val, NULL);^M
^^M
/usr/srcC/lib/libnv/tests/dnv_tests.cc:453:2: note: candidates are:^M
In file included from =
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/sstream:174:0,^M
from =
/usr/obj/usr/srcC/tmp/usr/include/atf-c++/macros.hpp:29,^M
from =
/usr/obj/usr/srcC/tmp/usr/include/atf-c++.hpp:29,^M
from /usr/srcC/lib/libnv/tests/dnv_tests.cc:30:^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:320:1: note: =
std::__1::basic_ostream<_CharT, _Traits>& =
std::__1::basic_ostream<_CharT, =
_Traits>::operator<<(std::__1::basic_ostream<_CharT, _Traits>& (
*)(std::__1::basic_ostream<_CharT, _Traits>&)) [with _CharT =3D char; =
_Traits =3D std::__1::char_traits<char>]^M
basic_ostream<_CharT, _Traits>::operator<<(basic_ostream& =
(*__pf)(basic_ostream&))^M
^^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:328:1: note: =
std::__1::basic_ostream<_CharT, _Traits>& =
std::__1::basic_ostream<_CharT, =
_Traits>::operator<<(std::__1::basic_ios<_CharT, _Traits>& (*)(s
td::__1::basic_ios<_CharT, _Traits>&)) [with _CharT =3D char; _Traits =3D =
std::__1::char_traits<char>]^M
basic_ostream<_CharT, _Traits>::operator<<(basic_ios<char_type, =
traits_type>&^M
^^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:338:1: note: =
std::__1::basic_ostream<_CharT, _Traits>& =
std::__1::basic_ostream<_CharT, _Traits>::operator<<(std::__1::ios_base& =
(*)(std::__1::ios_base&
)) [with _CharT =3D char; _Traits =3D std::__1::char_traits<char>]^M
basic_ostream<_CharT, _Traits>::operator<<(ios_base& =
(*__pf)(ios_base&))^M
^^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:398:1: note: =
std::__1::basic_ostream<_CharT, _Traits>& =
std::__1::basic_ostream<_CharT, _Traits>::operator<<(bool) [with _CharT =
=3D char; _Traits =3D std::_
_1::char_traits<char>]^M
basic_ostream<_CharT, _Traits>::operator<<(bool __n)^M
^^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:718:1: note: =
std::__1::basic_ostream<_CharT, _Traits>& =
std::__1::basic_ostream<_CharT, _Traits>::operator<<(const void*) [with =
_CharT =3D char; _Traits =3D
std::__1::char_traits<char>]^M
basic_ostream<_CharT, _Traits>::operator<<(const void* __n)^M
^^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:346:1: note: =
std::__1::basic_ostream<_CharT, _Traits>& =
std::__1::basic_ostream<_CharT, =
_Traits>::operator<<(std::__1::basic_streambuf<_CharT, _Traits>*
) [with _CharT =3D char; _Traits =3D std::__1::char_traits<char>]^M
basic_ostream<_CharT, _Traits>::operator<<(basic_streambuf<char_type, =
traits_type>* __sb)^M
^^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:907:1: note: =
std::__1::basic_ostream<char, _Traits>& =
std::__1::operator<<(std::__1::basic_ostream<char, _Traits>&, const =
unsigned char*) [with _Traits
=3D std::__1::char_traits<char>]^M
operator<<(basic_ostream<char, _Traits>& __os, const unsigned char* =
__str)^M
^^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:899:1: note: =
std::__1::basic_ostream<char, _Traits>& =
std::__1::operator<<(std::__1::basic_ostream<char, _Traits>&, const =
signed char*) [with _Traits =3D
std::__1::char_traits<char>]^M
operator<<(basic_ostream<char, _Traits>& __os, const signed char* =
__str)^M
^^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:892:1: note: =
std::__1::basic_ostream<char, _Traits>& =
std::__1::operator<<(std::__1::basic_ostream<char, _Traits>&, const =
char*) [with _Traits =3D std::__
1::char_traits<char>]^M
operator<<(basic_ostream<char, _Traits>& __os, const char* __str)^M
^^M
/usr/obj/usr/srcC/tmp/usr/include/c++/v1/ostream:846:1: note: =
std::__1::basic_ostream<_CharT, _Traits>& =
std::__1::operator<<(std::__1::basic_ostream<_CharT, _Traits>&, const =
char*) [with _CharT =3D char
; _Traits =3D std::__1::char_traits<char>]^M
operator<<(basic_ostream<_CharT, _Traits>& __os, const char* __strn)^M
^^M
Other context details:
make CROSS_TOOLCHAIN=3Dpowerpc64-gcc \
WITHOUT_CLANG_BOOTSTRAP=3D \
WITHOUT_CLANG_IS_CC=3D WITHOUT_CLANG=3D WITHOUT_CLANG_EXTRAS=3D =
WITHOUT_CLANG_FULL=3D \
WITHOUT_LLDB=3D \
WITHOUT_GCC_BOOTSTRAP=3D WITHOUT_GCC=3D \
WITHOUT_BINUTILS_BOOTSTRAP=3D WITHOUT_BINUTILS=3D
buildworld buildkernel KERNCONF=3DGENERIC64vtsc-NODEBUG \
TARGET=3Dpowerpc TARGET_ARCH=3Dpowerpc64
(Yes I was being paranoid about various automatic settings that are =
based on other ones. Any form of WITH_CLANG=3D blocks getting as far as =
I did above.)
This is a clang-not-in-use context (in fact not built at all, not even =
an old one present), but in order to get by an issue where gcc 4.2.1 is =
unfortunately used but was being told -std=3Dc++11 based on =
clang.build.mk during some of my experiments, I have the local/personal =
hack:
# svnlite diff lib/clang/clang.build.mk
Index: lib/clang/clang.build.mk
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- lib/clang/clang.build.mk (revision 279514)
+++ lib/clang/clang.build.mk (working copy)
@@ -34,8 +34,8 @@
CFLAGS+=3D -DLLVM_DEFAULT_TARGET_TRIPLE=3D\"${TARGET_TRIPLE}\" \
-DLLVM_HOST_TRIPLE=3D\"${BUILD_TRIPLE}\" \
-DDEFAULT_SYSROOT=3D\"${TOOLS_PREFIX}\"
-CXXFLAGS+=3D -std=3Dc++11 -fno-exceptions -fno-rtti
-CXXFLAGS.clang+=3D -stdlib=3Dlibc++
+CXXFLAGS+=3D -fno-exceptions -fno-rtti
+CXXFLAGS.clang+=3D -std=3Dc++11 -stdlib=3Dlibc++
=20
.PATH: ${LLVM_SRCS}/${SRCDIR}
As has been pointed out by Dimitry Andric: this hack is not appropriate =
to the FreeBSD code base since it would only set up -std=3Dc++11 for =
clang contexts were CXXFLAGS+=3D${CXXFLAGS.${COMPILER_TYPE}} was also in =
use.
=3D=3D=3D
Mark Millard
markmi at dsl-only.net
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