Jonathan MERCIER via llvm-dev
2019-Apr-16 07:51 UTC
[llvm-dev] fail to build libcxx with llvm 8.0.0
Dear,
I try to build llvm 8.0.0 (with clang compiler-rt libcxx libcxxabi lldb
lld polly). But At libcxx build stage I got a wall of error:
'std::abort' has not been declared
This happen when the builder compile the file:
libcxxabi/src/cxa_aux_runtime.cpp
I build using gcc 8.3.0 and I am able to build and run some toys code
(see below)
The command used to compile is (they are some duplicated flag due to var
env):
____________________________________________________________________________
$ /opt/gcc/bin/g++ -D_GNU_SOURCE -D_LIBCPP_DISABLE_EXTERN_TEMPLATE
-D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
-D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
-I/tmp/BUILD/llvm-8.0.0/build/projects/libcxxabi/src
-I/tmp/BUILD/libcxxabi/src -I/usr/include/libxml2
-I/tmp/BUILD/llvm-8.0.0/build/include -I/tmp/BUILD/llvm-8.0.0/include
-I/tmp/BUILD/libcxxabi/include -I/tmp/BUILD/libcxx/include -O3 -g -Wall
-Wformat-security -Wp,-D_GLIBCXX_ASSERTIONS -fPIC -fexceptions
-fstack-protector-strong -grecord-gcc-switches
-fasynchronous-unwind-tables -mtune=generic
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -std=gnu++14 -fPIC
-fvisibility-inlines-hidden -Werror=date-time -std=c++11 -Wall -Wextra
-Wno-unused-parameter -Wwrite-strings -Wcast-qual
-Wno-missing-field-initializers -pedantic -Wno-long-long
-Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-class-memaccess
-Wno-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment
-ffunction-sections -fdata-sections -O3 -g -Wall -Wformat-security
-Wp,-D_GLIBCXX_ASSERTIONS -fPIC -fexceptions -fstack-protector-strong
-grecord-gcc-switches -fasynchronous-unwind-tables -mtune=generic
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -std=gnu++14 -fPIC
-nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion
-Wmissing-braces -Wunused-function -Wshadow -Wsign-compare
-Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4
-Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error
-pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -o
CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o -c
/tmp/BUILD/libcxxabi/src/cxa_aux_runtime.cpp
In file included from /tmp/BUILD/libcxx/include/stdlib.h:94,
from /tmp/BUILD/libcxx/include/cstdlib:86,
from /tmp/BUILD/libcxx/include/exception:82,
from /tmp/BUILD/libcxx/include/new:85,
from /tmp/BUILD/libcxxabi/src/cxa_aux_runtime.cpp:14:
/opt/gcc/include/c++/8/stdlib.h:38:12: error: 'std::abort' has not been
declared
using std::abort;
^~~~~
/opt/gcc/include/c++/8/stdlib.h:39:12: error: 'std::atexit' has not been
declared
using std::atexit;
^~~~~~
/opt/gcc/include/c++/8/stdlib.h:40:12: error: 'std::exit' has not been
declared
____________________________________________________________________________
Thanksfor your help,
Best regards
#############
# TOYS CODE #
#############
it_works.cpp
==========
#include <iostream>
using namespace std;
int main(void) {
cout << "It works for C++!" << endl;
return 0;
}
test_div.cpp
==========#include <iostream>
#include <cstdlib>
using namespace std;
int main()
{
div_t result1 = div(51, 6);
cout << "Quotient of 51/6 = " << result1.quot <<
endl;
cout << "Remainder of 51/6 = " << result1.rem <<
endl;
ldiv_t result2 = div(19237012L,251L);
cout << "Quotient of 19237012L/251L = " << result2.quot
<< endl;
cout << "Remainder of 19237012L/251L = " << result2.rem
<< endl;
return 0;
}
--
Jonathan MERCIER
Centre National de Recherche en Génomique Humaine (CNRGH)
Researcher computational biology
PhD, Jonathan MERCIER
Bioinformatics (LBI)
2, rue Gaston Crémieux
91057 Evry Cedex
Tel :(33) 1 60 87 83 44
Email :jonathan.mercier at cng.fr <mailto:jonathan.mercier at cng.fr>
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