sparse - Fixing build warnings - linux-kernel

I'm compiling the sparse - linux kernel checking tool.
But it throws the following warning:
lovegcy#knltest-VirtualBox:~/git_root/sparse$ make
GEN version.h
/bin/sh: 1: llvm-config: not found
Makefile:63: Your system does not have libxml, disabling c2xml
Makefile:75: Your system does not have libgtk2, disabling test-inspect
Makefile:79: Your system does not have llvm, disabling sparse-llvm
CC test-lexing.o
CC target.o
CC parse.o
CC tokenize.o
CC pre-process.o
CC symbol.o
CC lib.o
CC scope.o
CC expression.o
CC show-parse.o
CC evaluate.o
CC expand.o
CC inline.o
CC linearize.o
CC char.o
CC sort.o
CC allocate.o
CC compat-linux.o
CC ptrlist.o
CC flow.o
CC cse.o
CC simplify.o
CC memops.o
CC liveness.o
CC storage.o
CC unssa.o
CC dissect.o
AR libsparse.a
LINK test-lexing
CC test-parsing.o
LINK test-parsing
CC obfuscate.o
LINK obfuscate
CC compile.o
CC compile-i386.o
compile-i386.c: In function ‘emit_insn_atom’:
compile-i386.c:719:7: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
LINK compile
CC graph.o
LINK graph
CC sparse.o
LINK sparse
CC test-linearize.o
LINK test-linearize
CC example.o
LINK example
CC test-unssa.o
LINK test-unssa
CC test-dissect.o
LINK test-dissect
CC ctags.o
LINK ctags
GEN sparse.pc
Fix the following
Makefile:63: Your system does not have libxml, disabling c2xml
Makefile:75: Your system does not have libgtk2, disabling test-inspect
by:
$ sudo apt-get install libxml2-dev libgtk2.0-dev
For
/bin/sh: 1: llvm-config: not found
Makefile:79: Your system does not have llvm, disabling sparse-llvm
the llvm-3.2-dev is installed, but it is still there.
I still donot know how to fix the following warning too:
compile-i386.c: In function ‘emit_insn_atom’:
compile-i386.c:719:7: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
Could anyone give some suggestions?
Thank you very much!
Update : Following TheCodeArtist's suggestion, here is the build error log after llvm installed.
lovegcy#knltest-VirtualBox:~/git_root/sparse$ make
CC test-lexing.o
CC target.o
CC parse.o
CC tokenize.o
CC pre-process.o
CC symbol.o
CC lib.o
CC scope.o
CC expression.o
CC show-parse.o
CC evaluate.o
CC expand.o
CC inline.o
CC linearize.o
CC char.o
CC sort.o
CC allocate.o
CC compat-linux.o
CC ptrlist.o
CC flow.o
CC cse.o
CC simplify.o
CC memops.o
CC liveness.o
CC storage.o
CC unssa.o
CC dissect.o
AR libsparse.a
LINK test-lexing
CC test-parsing.o
LINK test-parsing
CC obfuscate.o
LINK obfuscate
CC compile.o
CC compile-i386.o
compile-i386.c: In function ‘emit_insn_atom’:
compile-i386.c:719:7: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
LINK compile
CC graph.o
LINK graph
CC sparse.o
LINK sparse
CC test-linearize.o
LINK test-linearize
CC example.o
LINK example
CC test-unssa.o
LINK test-unssa
CC test-dissect.o
LINK test-dissect
CC ctags.o
LINK ctags
CC c2xml.o
LINK c2xml
CC test-inspect.o
CC ast-model.o
CC ast-view.o
CC ast-inspect.o
LINK test-inspect
CC sparse-llvm.o
LINK sparse-llvm
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Signals.o): In function PrintStackTrace(void*)':
(.text+0x74): undefined reference todladdr'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Signals.o): In function PrintStackTrace(void*)':
(.text+0x1fe): undefined reference todladdr'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Mutex.o): In function llvm::sys::MutexImpl::MutexImpl(bool)':
(.text+0x58): undefined reference topthread_mutexattr_init'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Mutex.o): In function llvm::sys::MutexImpl::MutexImpl(bool)':
(.text+0x64): undefined reference topthread_mutexattr_settype'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Mutex.o): In function llvm::sys::MutexImpl::MutexImpl(bool)':
(.text+0x74): undefined reference topthread_mutexattr_setpshared'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Mutex.o): In function llvm::sys::MutexImpl::MutexImpl(bool)':
(.text+0x88): undefined reference topthread_mutexattr_destroy'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Mutex.o): In function llvm::sys::MutexImpl::tryacquire()':
(.text+0x179): undefined reference topthread_mutex_trylock'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(RWMutex.o): In function llvm::sys::RWMutexImpl::RWMutexImpl()':
(.text+0x3e): undefined reference topthread_rwlock_init'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(RWMutex.o): In function llvm::sys::RWMutexImpl::~RWMutexImpl()':
(.text+0x80): undefined reference topthread_rwlock_destroy'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(RWMutex.o): In function llvm::sys::RWMutexImpl::reader_acquire()':
(.text+0xb9): undefined reference topthread_rwlock_rdlock'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(RWMutex.o): In function llvm::sys::RWMutexImpl::reader_release()':
(.text+0xe9): undefined reference topthread_rwlock_unlock'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(RWMutex.o): In function llvm::sys::RWMutexImpl::writer_acquire()':
(.text+0x119): undefined reference topthread_rwlock_wrlock'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(RWMutex.o): In function llvm::sys::RWMutexImpl::writer_release()':
(.text+0x149): undefined reference topthread_rwlock_unlock'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(ThreadLocal.o): In function llvm::sys::ThreadLocalImpl::~ThreadLocalImpl()':
(.text+0x25): undefined reference topthread_key_delete'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(ThreadLocal.o): In function llvm::sys::ThreadLocalImpl::ThreadLocalImpl()':
(.text+0xae): undefined reference topthread_key_create'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(ThreadLocal.o): In function llvm::sys::ThreadLocalImpl::setInstance(void const*)':
(.text+0xe2): undefined reference topthread_setspecific'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(ThreadLocal.o): In function llvm::sys::ThreadLocalImpl::getInstance()':
(.text+0x10a): undefined reference topthread_getspecific'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Threading.o): In function llvm::llvm_execute_on_thread(void (*)(void*), void*, unsigned int)':
(.text+0x1c2): undefined reference topthread_create'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Threading.o): In function llvm::llvm_execute_on_thread(void (*)(void*), void*, unsigned int)':
(.text+0x1da): undefined reference topthread_join'
/usr/lib/llvm-3.2/lib/libLLVMSupport.a(Threading.o): In function llvm::llvm_execute_on_thread(void (*)(void*), void*, unsigned int)':
(.text+0x20c): undefined reference topthread_attr_setstacksize'
collect2: error: ld returned 1 exit status
make: * [sparse-llvm] Error 1

Properly installing llvm :
During the build, for make to detect llvm on the system ,llvm-config is required to be installed on your system properly. On Ubuntu, the following command will download(~16MB packages) and install all the dependencies correctly
$ sudo apt-get install llvm
Download the latest source of sparse
$ git clone git://git.kernel.org/pub/scm/devel/sparse/sparse.git
Build and install sparse
$ cd sparse
$ make
$ make install
(Tested on Ubuntu 10.04)
Fixing the innocuous Warning :
The following error is harmless in the current context as we are not concerned with the result of the call to write() at line 719 of compile-i386.c
compile-i386.c:719:7: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
Fixing this error is as simple as modifying line 719 of compile-i386.c to
comment[0] = write(STDOUT_FILENO, s, strlen(s));
This warning is triggered during build due to the -Wall (Enable ALL warnings) flag passed to gcc at line 16 of the Makefile
CFLAGS += -Wall -Wwrite-strings

Related

GCC Linking Error when Building Fast RCNN

I am trying to build the source code at https://github.com/craftGBD/craftGBD in order to achieve the same results of the published paper of authors to observe whether it is reproducible or not for my term project. I realized that I have to install Fast RCNN by running Makefile inside the craftGBD/evaluation/lib folder. However, I got following results when I run Makefile using make:
/cta/users/byaman/craftEnv/bin/python setup.py build_ext --inplace
python setup.py build_ext --inplace
running build_ext
cythoning utils/bbox.pyx to utils/bbox.c
/cta/users/byaman/craftEnv/lib/python2.7/site-packages/Cython/Compiler/Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: /cta/users/byaman/craftGBD/evaluation/lib/utils/bbox.pyx
tree = Parsing.p_module(s, pxd, full_module_name)
cythoning nms/cpu_nms.pyx to nms/cpu_nms.c
/cta/users/byaman/craftEnv/lib/python2.7/site-packages/Cython/Compiler/Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: /cta/users/byaman/craftGBD/evaluation/lib/nms/cpu_nms.pyx
tree = Parsing.p_module(s, pxd, full_module_name)
cythoning nms/gpu_nms.pyx to nms/gpu_nms.cpp
/cta/users/byaman/craftEnv/lib/python2.7/site-packages/Cython/Compiler/Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: /cta/users/byaman/craftGBD/evaluation/lib/nms/gpu_nms.pyx
tree = Parsing.p_module(s, pxd, full_module_name)
skipping 'pycocotools/_mask.c' Cython extension (up-to-date)
building 'utils.cython_bbox' extension
['-Wno-cpp', '-Wno-unused-function'] .c ['-I/cta/users/byaman/craftEnv/lib/python2.7/site-packages/numpy/core/include', '-I/cta/users/byaman/craftEnv/include/python2.7', '-c'] ['-Wno-cpp', '-Wno-unused-function'] ['-I/cta/users/byaman/craftEnv/lib/python2.7/site-packages/numpy/core/include', '-I/cta/users/byaman/craftEnv/include/python2.7']
/cta/users/byaman/craftEnv/bin/x86_64-conda-linux-gnu-cc -fno-strict-aliasing -march=nocona -mtune=haswell -ftree-vectorize -fPIC -fstack-protector-strong -fno-plt -O3 -pipe -DNDEBUG -fwrapv -O3 -Wall -Wstrict-prototypes -march=nocona -mtune=haswell -ftree-vectorize -fPIC -fstack-protector-strong -fno-plt -O2 -ffunction-sections -pipe -isystem /cta/users/byaman/craftEnv/include -I/cta/apps/opt/spack/linux-ubuntu18.04-cascadelake/gcc-10.2.0/cuda-10.0.130-zjercki4memwdfwjztmfkq2yio2jcev4/include -DNDEBUG -D_FORTIFY_SOURCE=2 -O2 -isystem /cta/users/byaman/craftEnv/include -I/cta/apps/opt/spack/linux-ubuntu18.04-cascadelake/gcc-10.2.0/cuda-10.0.130-zjercki4memwdfwjztmfkq2yio2jcev4/include -fPIC -I/cta/users/byaman/craftEnv/lib/python2.7/site-packages/numpy/core/include -I/cta/users/byaman/craftEnv/include/python2.7 -c utils/bbox.c -o build/temp.linux-x86_64-2.7/utils/bbox.o -Wno-cpp -Wno-unused-function
x86_64-conda_cos6-linux-gnu-gcc -pthread -shared -Wl,-O2 -Wl,--sort-common -Wl,--as-needed -Wl,-z,relro -Wl,-z,now -Wl,-rpath,/cta/users/byaman/craftEnv/lib -L/cta/users/byaman/craftEnv/lib -Wl,--no-as-needed -Wl,-O2 -Wl,--sort-common -Wl,--as-needed -Wl,-z,relro -Wl,-z,now -Wl,--disable-new-dtags -Wl,--gc-sections -Wl,-rpath,/cta/users/byaman/craftEnv/lib -Wl,-rpath-link,/cta/users/byaman/craftEnv/lib -L/cta/users/byaman/craftEnv/lib -march=nocona -mtune=haswell -ftree-vectorize -fPIC -fstack-protector-strong -fno-plt -O2 -ffunction-sections -pipe -isystem /cta/users/byaman/craftEnv/include -I/cta/apps/opt/spack/linux-ubuntu18.04-cascadelake/gcc-10.2.0/cuda-10.0.130-zjercki4memwdfwjztmfkq2yio2jcev4/include -DNDEBUG -D_FORTIFY_SOURCE=2 -O2 -isystem /cta/users/byaman/craftEnv/include -I/cta/apps/opt/spack/linux-ubuntu18.04-cascadelake/gcc-10.2.0/cuda-10.0.130-zjercki4memwdfwjztmfkq2yio2jcev4/include build/temp.linux-x86_64-2.7/utils/bbox.o -L/cta/users/byaman/craftEnv/lib -lpython2.7 -o /cta/users/byaman/craftGBD/evaluation/lib/utils/cython_bbox.so
/cta/users/byaman/craftEnv/bin/../lib/gcc/x86_64-conda-linux-gnu/9.3.0/../../../../x86_64-conda-linux-gnu/bin/ld: /cta/users/byaman/craftEnv/lib/libc.a(__stack_chk_fail.o): relocation R_X86_64_32 against symbol `__stack_chk_guard' can not be used when making a shared object; recompile with -fPIC
collect2: error: ld returned 1 exit status
error: command 'x86_64-conda_cos6-linux-gnu-gcc' failed with exit status 1
Makefile:2: recipe for target 'all' failed
make: *** [all] Error 1
Note that my username is byaman and I run the code inside the Conda environment, which is craftEnv.
The code that is run by Makefile is:
# --------------------------------------------------------
# Fast R-CNN
# Copyright (c) 2015 Microsoft
# Licensed under The MIT License [see LICENSE for details]
# Written by Ross Girshick
# --------------------------------------------------------
import os
from os.path import join as pjoin
from setuptools import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
import subprocess
import numpy as np
def find_in_path(name, path):
"Find a file in a search path"
# Adapted fom
# http://code.activestate.com/recipes/52224-find-a-file-given-a-search-path/
for dir in path.split(os.pathsep):
binpath = pjoin(dir, name)
if os.path.exists(binpath):
return os.path.abspath(binpath)
return None
def locate_cuda():
"""Locate the CUDA environment on the system
Returns a dict with keys 'home', 'nvcc', 'include', and 'lib64'
and values giving the absolute path to each directory.
Starts by looking for the CUDAHOME env variable. If not found, everything
is based on finding 'nvcc' in the PATH.
"""
# first check if the CUDAHOME env variable is in use
if 'CUDAHOME' in os.environ:
home = os.environ['CUDAHOME']
nvcc = pjoin(home, 'bin', 'nvcc')
else:
# otherwise, search the PATH for NVCC
default_path = pjoin(os.sep, 'usr', 'local', 'cuda', 'bin')
nvcc = find_in_path('nvcc', os.environ['PATH'] + os.pathsep + default_path)
if nvcc is None:
raise EnvironmentError('The nvcc binary could not be '
'located in your $PATH. Either add it to your path, or set $CUDAHOME')
home = os.path.dirname(os.path.dirname(nvcc))
cudaconfig = {'home':home, 'nvcc':nvcc,
'include': pjoin(home, 'include'),
'lib64': pjoin(home, 'lib64')}
for k, v in cudaconfig.iteritems():
if not os.path.exists(v):
raise EnvironmentError('The CUDA %s path could not be located in %s' % (k, v))
return cudaconfig
CUDA = locate_cuda()
# Obtain the numpy include directory. This logic works across numpy versions.
try:
numpy_include = np.get_include()
except AttributeError:
numpy_include = np.get_numpy_include()
def customize_compiler_for_nvcc(self):
"""inject deep into distutils to customize how the dispatch
to gcc/nvcc works.
If you subclass UnixCCompiler, it's not trivial to get your subclass
injected in, and still have the right customizations (i.e.
distutils.sysconfig.customize_compiler) run on it. So instead of going
the OO route, I have this. Note, it's kindof like a wierd functional
subclassing going on."""
# tell the compiler it can processes .cu
self.src_extensions.append('.cu')
# save references to the default compiler_so and _comple methods
default_compiler_so = self.compiler_so
super = self._compile
# now redefine the _compile method. This gets executed for each
# object but distutils doesn't have the ability to change compilers
# based on source extension: we add it.
def _compile(obj, src, ext, cc_args, extra_postargs, pp_opts):
if os.path.splitext(src)[1] == '.cu':
# use the cuda for .cu files
self.set_executable('compiler_so', CUDA['nvcc'])
# use only a subset of the extra_postargs, which are 1-1 translated
# from the extra_compile_args in the Extension class
postargs = extra_postargs['nvcc']
else:
postargs = extra_postargs['gcc']
super(obj, src, ext, cc_args, postargs, pp_opts)
# reset the default compiler_so, which we might have changed for cuda
self.compiler_so = default_compiler_so
# inject our redefined _compile method into the class
self._compile = _compile
# run the customize_compiler
class custom_build_ext(build_ext):
def build_extensions(self):
customize_compiler_for_nvcc(self.compiler)
build_ext.build_extensions(self)
ext_modules = [
Extension(
"utils.cython_bbox",
["utils/bbox.pyx"],
extra_compile_args={'gcc': ["-Wno-cpp", "-Wno-unused-function"]},
include_dirs = [numpy_include]
),
Extension(
"nms.cpu_nms",
["nms/cpu_nms.pyx"],
extra_compile_args={'gcc': ["-Wno-cpp", "-Wno-unused-function"]},
include_dirs = [numpy_include]
),
Extension('nms.gpu_nms',
['nms/nms_kernel.cu', 'nms/gpu_nms.pyx'],
library_dirs=[CUDA['lib64']],
libraries=['cudart'],
language='c++',
runtime_library_dirs=[CUDA['lib64']],
# this syntax is specific to this build system
# we're only going to use certain compiler args with nvcc and not with
# gcc the implementation of this trick is in customize_compiler() below
extra_compile_args={'gcc': ["-Wno-unused-function"],
'nvcc': ['-arch=sm_35',
'--ptxas-options=-v',
'-c',
'--compiler-options',
"'-fPIC'"]},
include_dirs = [numpy_include, CUDA['include']]
),
Extension(
'pycocotools._mask',
sources=['pycocotools/maskApi.c', 'pycocotools/_mask.pyx'],
include_dirs = [numpy_include, 'pycocotools'],
extra_compile_args={
'gcc': ['-Wno-cpp', '-Wno-unused-function', '-std=c99']},
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]
setup(
name='fast_rcnn',
ext_modules=ext_modules,
# inject our custom trigger
cmdclass={'build_ext': custom_build_ext},
)
I don't know how to solve this problem even though I investigated following questions/answers:
"relocation R_X86_64_32S against " linking Error
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Cython wrapping a class that uses another library

GCC : undefined reference to "__asan_init_v1"

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[ 6%] Building C object CMakeFiles/last.dir/src/ast/ast.c.o
[ 13%] Building C object CMakeFiles/last.dir/src/ast/ast_printer.c.o
[ 20%] Building C object CMakeFiles/last.dir/src/ast/cleaner.c.o
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/home/lyro/Documents/customshell/src/execution/exec_parser.c:1105 : undefined reference to « __asan_init_v1 »
liblexecution.a(exec_utils.c.o) : In function « _GLOBAL__sub_I_00099_0_get_args_array » :
/home/lyro/Documents/customshell/src/execution/exec_utils.c:242 : undefined reference to « __asan_init_v1 »
liblexecution.a(exec_func.c.o) : In function « _GLOBAL__sub_I_00099_1_exec_ast » :
/home/lyro/Documents/customshell/src/execution/exec_func.c:187 : undefined reference to « __asan_init_v1 »
liblexecution.a(exec_parser_options.c.o):/home/lyro/Documents/customshell/src/execution/exec_parser_options.c:149 : more undefined references to « __asan_init_v1 »
collect2: error: ld returned 1 execution state code
make[2]: *** [42sh] Error 1
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make: *** [all] Error 2
Here is my CMakeLists.txt file, I can't find what I am missing..
cmake_minimum_required(VERSION 3.0)
project(42SH LANGUAGES C)
add_compile_options(-Wall -Wextra -Werror -pedantic -fsanitize=address -g -std=c99)
add_library(last ${CMAKE_SOURCE_DIR}/src/ast/ast.c ${CMAKE_SOURCE_DIR}/src/ast/ast_printer.c ${CMAKE_SOURCE_DIR}/src/ast/cleaner.c)
target_include_directories(last PUBLIC ${CMAKE_SOURCE_DIR}/src/ast)
add_library(lutils ${CMAKE_SOURCE_DIR}/tests/utils/utils.c)
target_include_directories(lutils PUBLIC ${CMAKE_SOURCE_DIR}/tests/utils)
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DEPENDS 42sh
)
add_custom_target(doc
COMMENT "Compiling documentation"
COMMAND doxygen ${CMAKE_SOURCE_DIR}/doc/Doxyfile
COMMENT "Compiled documentation"
)
Your toolchain is somewhat confused about which version of GCC it is and
the linkage failure is one consequence of that confusion.
You tell us you are using GCC 7.3.1, but the first of the unresolved references to __asan_init_v1:
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/libasan_preinit.o:(.preinit_array+0x0) : undefined reference to « __asan_init_v1
shows that the gcc that invoked the linkage with -fsanitize=address linked the address santitizer initialization code
from your installation of GCC 4.8.5.
In GCC 7, the file libasan_preinit.o makes no references to __asan_init_v1, as seen on
the laptop I'm working on just now:
$ nm /usr/lib/gcc/x86_64-linux-gnu/7/libasan_preinit.o
U __asan_init
0000000000000000 D __local_asan_preinit
It calls __asan_init, which is indeed defined in the toolchain's libasan:
$ nm -D /usr/lib/gcc/x86_64-linux-gnu/7/libasan.so | grep __asan_init
00000000000ecdb0 T __asan_init
On the other hand, in GCC 4.8.5, libasan did not define the function __asan_init
and did define __asan_init_v1:
:~/Downloads/gcc-4.8.5$ grep -r '__asan_init_v'
gcc/ChangeLog: * sanitizer.def: Rename __asan_init to __asan_init_v1.
gcc/sanitizer.def:DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_INIT, "__asan_init_v1",
libsanitizer/asan/asan_interface_internal.h: void __asan_init_v1() SANITIZER_INTERFACE_ATTRIBUTE;
libsanitizer/asan/asan_interface_internal.h: #define __asan_init __asan_init_v1
There, __asan_init was just an internal #define aliasing the real function __asan_init_v1, as
per libsanitizer/asan/asan_interface_internal.h, but in that file in GCC 7
// This function should be called at the very beginning of the process,
// before any instrumented code is executed and before any call to malloc.
SANITIZER_INTERFACE_ATTRIBUTE void __asan_init();
it is a real function, as reported by nm.
So the thrust of the evidence is that you are linking against the libasan of GCC 7.3.1
but also linking the library initialization code of GCC 4.8.5. I have no visibility of
how you've landed in this GCC version mash-up - could be a packaging bug, for all I know - but
you'll have to fix that to solve these linkage failures.

MPFR 3.1.3 fails with "illegal thread local variable reference to regular symbol" on Mac + Intel 15

I downloaded MPFR 3.1.3 from http://www.mpfr.org/mpfr-current/ and attempted to compile with Intel 15 (icc --version returns icc (ICC) 15.0.3 20150408) on Mac Yosemite (10.10.4).
The build fails at this point:
jrhammon-mac01:build jrhammon$ make
Making all in doc
make[1]: Nothing to be done for `all'.
Making all in src
/Applications/Xcode.app/Contents/Developer/usr/bin/make all-am
/bin/sh ../libtool --tag=CC --mode=link icc -Wall -Wmissing-prototypes -Wpointer-arith -fp_port -mp -wd1572 -wd265 -wd186 -wd239 -g -O2 -version-info 5:3:1 -Wl,-search_paths_first -o libmpfr.la -rpath /usr/local/lib exceptions.lo extract.lo uceil_exp2.lo uceil_log2.lo ufloor_log2.lo add.lo add1.lo add_ui.lo agm.lo clear.lo cmp.lo cmp_abs.lo cmp_si.lo cmp_ui.lo comparisons.lo div_2exp.lo div_2si.lo div_2ui.lo div.lo div_ui.lo dump.lo eq.lo exp10.lo exp2.lo exp3.lo exp.lo frac.lo frexp.lo get_d.lo get_exp.lo get_str.lo init.lo inp_str.lo isinteger.lo isinf.lo isnan.lo isnum.lo const_log2.lo log.lo modf.lo mul_2exp.lo mul_2si.lo mul_2ui.lo mul.lo mul_ui.lo neg.lo next.lo out_str.lo printf.lo vasprintf.lo const_pi.lo pow.lo pow_si.lo pow_ui.lo print_raw.lo print_rnd_mode.lo reldiff.lo round_prec.lo set.lo setmax.lo setmin.lo set_d.lo set_dfl_prec.lo set_exp.lo set_rnd.lo set_f.lo set_prc_raw.lo set_prec.lo set_q.lo set_si.lo set_str.lo set_str_raw.lo set_ui.lo set_z.lo sqrt.lo sqrt_ui.lo sub.lo sub1.lo sub_ui.lo rint.lo ui_div.lo ui_sub.lo urandom.lo urandomb.lo get_z_exp.lo swap.lo factorial.lo cosh.lo sinh.lo tanh.lo sinh_cosh.lo acosh.lo asinh.lo atanh.lo atan.lo cmp2.lo exp_2.lo asin.lo const_euler.lo cos.lo sin.lo tan.lo fma.lo fms.lo hypot.lo log1p.lo expm1.lo log2.lo log10.lo ui_pow.lo ui_pow_ui.lo minmax.lo dim.lo signbit.lo copysign.lo setsign.lo gmp_op.lo init2.lo acos.lo sin_cos.lo set_nan.lo set_inf.lo set_zero.lo powerof2.lo gamma.lo set_ld.lo get_ld.lo cbrt.lo volatile.lo fits_sshort.lo fits_sint.lo fits_slong.lo fits_ushort.lo fits_uint.lo fits_ulong.lo fits_uintmax.lo fits_intmax.lo get_si.lo get_ui.lo zeta.lo cmp_d.lo erf.lo inits.lo inits2.lo clears.lo sgn.lo check.lo sub1sp.lo version.lo mpn_exp.lo mpfr-gmp.lo mp_clz_tab.lo sum.lo add1sp.lo free_cache.lo si_op.lo cmp_ld.lo set_ui_2exp.lo set_si_2exp.lo set_uj.lo set_sj.lo get_sj.lo get_uj.lo get_z.lo iszero.lo cache.lo sqr.lo int_ceil_log2.lo isqrt.lo strtofr.lo pow_z.lo logging.lo mulders.lo get_f.lo round_p.lo erfc.lo atan2.lo subnormal.lo const_catalan.lo root.lo sec.lo csc.lo cot.lo eint.lo sech.lo csch.lo coth.lo round_near_x.lo constant.lo abort_prec_max.lo stack_interface.lo lngamma.lo zeta_ui.lo set_d64.lo get_d64.lo jn.lo yn.lo rem1.lo get_patches.lo add_d.lo sub_d.lo d_sub.lo mul_d.lo div_d.lo d_div.lo li2.lo rec_sqrt.lo min_prec.lo buildopt.lo digamma.lo bernoulli.lo isregular.lo set_flt.lo get_flt.lo scale2.lo set_z_exp.lo ai.lo gammaonethird.lo grandom.lo -lgmp
libtool: link: icc -dynamiclib -Wl,-undefined -Wl,dynamic_lookup -o .libs/libmpfr.4.dylib .libs/exceptions.o .libs/extract.o .libs/uceil_exp2.o .libs/uceil_log2.o .libs/ufloor_log2.o .libs/add.o .libs/add1.o .libs/add_ui.o .libs/agm.o .libs/clear.o .libs/cmp.o .libs/cmp_abs.o .libs/cmp_si.o .libs/cmp_ui.o .libs/comparisons.o .libs/div_2exp.o .libs/div_2si.o .libs/div_2ui.o .libs/div.o .libs/div_ui.o .libs/dump.o .libs/eq.o .libs/exp10.o .libs/exp2.o .libs/exp3.o .libs/exp.o .libs/frac.o .libs/frexp.o .libs/get_d.o .libs/get_exp.o .libs/get_str.o .libs/init.o .libs/inp_str.o .libs/isinteger.o .libs/isinf.o .libs/isnan.o .libs/isnum.o .libs/const_log2.o .libs/log.o .libs/modf.o .libs/mul_2exp.o .libs/mul_2si.o .libs/mul_2ui.o .libs/mul.o .libs/mul_ui.o .libs/neg.o .libs/next.o .libs/out_str.o .libs/printf.o .libs/vasprintf.o .libs/const_pi.o .libs/pow.o .libs/pow_si.o .libs/pow_ui.o .libs/print_raw.o .libs/print_rnd_mode.o .libs/reldiff.o .libs/round_prec.o .libs/set.o .libs/setmax.o .libs/setmin.o .libs/set_d.o .libs/set_dfl_prec.o .libs/set_exp.o .libs/set_rnd.o .libs/set_f.o .libs/set_prc_raw.o .libs/set_prec.o .libs/set_q.o .libs/set_si.o .libs/set_str.o .libs/set_str_raw.o .libs/set_ui.o .libs/set_z.o .libs/sqrt.o .libs/sqrt_ui.o .libs/sub.o .libs/sub1.o .libs/sub_ui.o .libs/rint.o .libs/ui_div.o .libs/ui_sub.o .libs/urandom.o .libs/urandomb.o .libs/get_z_exp.o .libs/swap.o .libs/factorial.o .libs/cosh.o .libs/sinh.o .libs/tanh.o .libs/sinh_cosh.o .libs/acosh.o .libs/asinh.o .libs/atanh.o .libs/atan.o .libs/cmp2.o .libs/exp_2.o .libs/asin.o .libs/const_euler.o .libs/cos.o .libs/sin.o .libs/tan.o .libs/fma.o .libs/fms.o .libs/hypot.o .libs/log1p.o .libs/expm1.o .libs/log2.o .libs/log10.o .libs/ui_pow.o .libs/ui_pow_ui.o .libs/minmax.o .libs/dim.o .libs/signbit.o .libs/copysign.o .libs/setsign.o .libs/gmp_op.o .libs/init2.o .libs/acos.o .libs/sin_cos.o .libs/set_nan.o .libs/set_inf.o .libs/set_zero.o .libs/powerof2.o .libs/gamma.o .libs/set_ld.o .libs/get_ld.o .libs/cbrt.o .libs/volatile.o .libs/fits_sshort.o .libs/fits_sint.o .libs/fits_slong.o .libs/fits_ushort.o .libs/fits_uint.o .libs/fits_ulong.o .libs/fits_uintmax.o .libs/fits_intmax.o .libs/get_si.o .libs/get_ui.o .libs/zeta.o .libs/cmp_d.o .libs/erf.o .libs/inits.o .libs/inits2.o .libs/clears.o .libs/sgn.o .libs/check.o .libs/sub1sp.o .libs/version.o .libs/mpn_exp.o .libs/mpfr-gmp.o .libs/mp_clz_tab.o .libs/sum.o .libs/add1sp.o .libs/free_cache.o .libs/si_op.o .libs/cmp_ld.o .libs/set_ui_2exp.o .libs/set_si_2exp.o .libs/set_uj.o .libs/set_sj.o .libs/get_sj.o .libs/get_uj.o .libs/get_z.o .libs/iszero.o .libs/cache.o .libs/sqr.o .libs/int_ceil_log2.o .libs/isqrt.o .libs/strtofr.o .libs/pow_z.o .libs/logging.o .libs/mulders.o .libs/get_f.o .libs/round_p.o .libs/erfc.o .libs/atan2.o .libs/subnormal.o .libs/const_catalan.o .libs/root.o .libs/sec.o .libs/csc.o .libs/cot.o .libs/eint.o .libs/sech.o .libs/csch.o .libs/coth.o .libs/round_near_x.o .libs/constant.o .libs/abort_prec_max.o .libs/stack_interface.o .libs/lngamma.o .libs/zeta_ui.o .libs/set_d64.o .libs/get_d64.o .libs/jn.o .libs/yn.o .libs/rem1.o .libs/get_patches.o .libs/add_d.o .libs/sub_d.o .libs/d_sub.o .libs/mul_d.o .libs/div_d.o .libs/d_div.o .libs/li2.o .libs/rec_sqrt.o .libs/min_prec.o .libs/buildopt.o .libs/digamma.o .libs/bernoulli.o .libs/isregular.o .libs/set_flt.o .libs/get_flt.o .libs/scale2.o .libs/set_z_exp.o .libs/ai.o .libs/gammaonethird.o .libs/grandom.o -lgmp -mp -g -O2 -Wl,-search_paths_first -mp -install_name /usr/local/lib/libmpfr.4.dylib -compatibility_version 6 -current_version 6.3 -Wl,-single_module
icc: command line remark #10148: option '-mp' not supported
icc: command line remark #10148: option '-mp' not supported
ld: illegal thread local variable reference to regular symbol __tls___mpfr_allocate_func for architecture x86_64
make[2]: *** [libmpfr.la] Error 1
make[1]: *** [all] Error 2
make: *** [all-recursive] Error 1
I have never seen this error before. Is it a bug in MPFR, the Intel compiler or the Mac toolchain? I am using the system install of GMP (from Homebrew), which I assume is built with Clang, not Intel. Is there a C ABI incompatibility issue here with TLS?
I found https://github.com/feeley/gambit/issues/109 and https://trac.mpich.org/projects/mpich/ticket/1547, which suggest that it is a Mac issue, but I am able to build with CC=clang so I guess it has something to do with Intel.
I have got MPFR to build in the past with Intel compilers, but (apparently) had to apply this patch: https://github.com/hpcugent/easybuild-easyconfigs/blob/master/easybuild/easyconfigs/m/MPFR/MPFR_ictce_remove-deprecated-mp.patch .
Maybe the warnings you're getting aren't so harmless as they seem.

compiling ffmpeg on msys2 and mingw32-- error creating ffmpeg_g.exe

I have compiled ffmpeg from source using MSYS2 and MinGW. The library files were created successfully during the compilation and when make utility proceeds to build ffmpeg_g, I am getting lot of undefined references.Kindly tell me why the compilation fails....
Thanks in advance
The following library files were generated successfully
libavcodec.a
libavdvice.a
libavfilter.a
libavformat.a
libavutil.a
libpostproc.a
libswresample.a
libswscale.a
Command passed for compiling ffmpeg_g.exe output taken by using -d option with mke
g++ -Llibavcodec -Llibavdevice -Llibavfilter -Llibavformat -Llibavresample -Llibavutil -Llibpostproc -Llibswscale -Llibswresample -Wl,--nxcompat -Wl,--dynamicbase -Wl,--as-needed -Wl,--warn-common -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample -o ffmpeg_g.exe ffmpeg_opt.o ffmpeg_filter.o ffmpeg.o cmdutils.o -lavdevice -lavfilter -lavformat -lavcodec -lpostproc -lswresample -lswscale -lavutil -lavicap32 -lpsapi -lole32 -lstrmiids -luuid -lws2_32 -lx264 -lvpx -lvpx -lvpx -lvpx -lvorbisenc -lvorbis -logg -lopenjpeg -lmp3lame -lfdk-aac -lfaac -lbluray -L/mingw32/lib -lass -lm -lharfbuzz -lfontconfig -lexpat -lfreetype -lexpat -lenca -lm -lfribidi -lglib-2.0 -lintl -lws2_32 -lole32 -lwinmm -lshlwapi -lintl -lfreetype -lz -lbz2 -lm -lbz2 -lz -lpsapi -ladvapi32 -lshell32
The output from gcc is given below
ffmpeg_opt.o: In function new_output_stream:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:1036: undefined reference to avcodec_get_context_defaults3
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:1089: undefined reference to av_get_exact_bits_per_sample
ffmpeg_opt.o: In function find_codec_or_die:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:514: undefined reference to avcodec_find_encoder_by_name
ffmpeg_opt.o: In function choose_encoder:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:965: undefined reference to avcodec_find_encoder
ffmpeg_opt.o: In function find_codec_or_die:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:518: undefined reference to avcodec_find_encoder
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:514: undefined reference to avcodec_find_decoder_by_name
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:518: undefined reference to avcodec_find_decoder
ffmpeg_opt.o: In function add_input_streams:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:596: undefined reference to av_codec_get_lowres
ffmpeg_opt.o: In function choose_decoder:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:546: undefined reference to avcodec_find_decoder
ffmpeg_opt.o: In function add_input_streams:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:546: undefined reference to avcodec_find_decoder
ffmpeg_opt.o: In function open_input_file:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:872: undefined reference to avcodec_get_class
ffmpeg_opt.o: In function add_input_streams:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:631: undefined reference to avcodec_find_decoder
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/ffmpeg_opt.c:595: undefined reference to avcodec_find_decoder
lot of undefined references followed by
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/libavcodec/mlpdsp.c:64: undefined reference to ff_mlpdsp_init_x86
libavcodec/libavcodec.a(mpegaudiodsp.o): In function ff_mpadsp_init:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/libavcodec/mpegaudiodsp.c:46: undefined reference to ff_mpadsp_init_x86
libavcodec/libavcodec.a(cavsdsp.o): In function ff_cavsdsp_init:
E:\software\pkg\ffmpeg-2.1.3.tar\ffmpeg-2.1.3\ffmpeg-2.1.3/libavcodec/cavsdsp.c:565: undefined reference to ff_cavsdsp_init_x86
collect2.exe: error: ld returned 1 exit status
Make output
LD ffmpeg_g.exe
Reaping losing child 01584DA0 PID 29691080
Makefile:105: recipe for target ffmpeg_g.exe failed
Removing child 01584DA0 PID 29691080 from chain.

Compiling libshout using QT/qmake

I'm trying to link my QT application to a DLL (libshout), while building for Windows.
I've added the appropriate lines to my .pro file:
LIBS += -L/local/lib -lmp3lame
LIBS += -L/local/lib -lshout
LIBS += -L/local/lib -logg
LIBS += -L/local/lib -lvorbis
LIBS += -lwsock32
I've also successfully built and installed libshout to /local/lib (I'm using mingw and the gcc-dw2 compiler).
However, qmake fails to link successfully. I've pasted the gcc/make output below. I'm not even sure it's trying to link to the right library (isn't .a/.la a static library?).
I've been tearing my hair out for 3 days over this one so any help appreciated :)
g++-dw2 -c -O2 -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPP
ORT -DQT_DLL -DQT_NO_DEBUG -DQT_WEBKIT_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CO
RE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I'../../Qt/4.6.3/include/QtCore' -I
'../../Qt/4.6.3/include/QtNetwork' -I'../../Qt/4.6.3/include/QtGui' -I'../../Qt/
4.6.3/include/QtWebKit' -I'../../Qt/4.6.3/include' -I'../../Qt/4.6.3/include/Act
iveQt' -I'release' -I'../../Qt/4.6.3/mkspecs/win32-g++' -o release/qrc_resources
.o release/qrc_resources.cpp
g++-dw2 -enable-stdcall-fixup -Wl,-enable-auto-import -Wl,-enable-runtime-pseudo
-reloc -Wl,-s -mthreads -Wl -Wl,-subsystem,windows -o build/release/MyApp.exe ob
ject_script.MyApp.Release -L'c:/Qt/4.6.3/lib' -lmingw32 -lqtmain -L/local/lib -
lmp3lame -L/local/lib -lshout -lwsock32 -lQtWebKit4 -lQtGui4 -lQtNetwork4 -lQtCo
re4
C:/msys/1.0/local/lib/libshout.a(ogg.o): In function `free_codec':
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:188: undefined reference to `ogg_
stream_clear'
C:/msys/1.0/local/lib/libshout.a(ogg.o): In function `close_ogg':
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:144: undefined reference to `ogg_
sync_clear'
C:/msys/1.0/local/lib/libshout.a(ogg.o): In function `send_ogg':
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:90: undefined reference to `ogg_s
ync_buffer'
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:92: undefined reference to `ogg_s
ync_wrote'
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:94: undefined reference to `ogg_s
ync_pageout'
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:95: undefined reference to `ogg_p
age_bos'
C:/msys/1.0/local/lib/libshout.a(ogg.o): In function `open_codec':
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:154: undefined reference to `ogg_
page_serialno'
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:154: undefined reference to `ogg_
stream_init'
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:155: undefined reference to `ogg_
stream_pagein'
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:160: undefined reference to `ogg_
stream_clear'
C:/msys/1.0/local/lib/libshout.a(ogg.o): In function `send_ogg':
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:117: undefined reference to `ogg_
page_serialno'
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:119: undefined reference to `ogg_
stream_pagein'
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:94: undefined reference to `ogg_s
ync_pageout'
C:/msys/1.0/local/lib/libshout.a(ogg.o): In function `shout_open_ogg':
c:\myapp_app\external\libshout-2.2.2\src/ogg.c:74: undefined reference to `ogg_s
ync_init'
C:/msys/1.0/local/lib/libshout.a(vorbis.o): In function `free_vorbis_data':
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:103: undefined reference to `v
orbis_info_clear'
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:104: undefined reference to `v
orbis_comment_clear'
C:/msys/1.0/local/lib/libshout.a(vorbis.o): In function `read_vorbis_page':
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:83: undefined reference to `vo
rbis_synthesis_headerin'
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:82: undefined reference to `og
g_stream_packetout'
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:91: undefined reference to `og
g_stream_packetout'
C:/msys/1.0/local/lib/libshout.a(vorbis.o): In function `vorbis_blocksize':
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:110: undefined reference to `v
orbis_packet_blocksize'
C:/msys/1.0/local/lib/libshout.a(vorbis.o): In function `shout_open_vorbis':
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:57: undefined reference to `vo
rbis_info_init'
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:58: undefined reference to `vo
rbis_comment_init'
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:60: undefined reference to `og
g_stream_packetout'
c:\myapp_app\external\libshout-2.2.2\src/vorbis.c:62: undefined reference to `vo
rbis_synthesis_headerin'
collect2: ld returned 1 exit status
make[1]: *** [build/release/Myapp.exe] Error 1
make[1]: Leaving directory `/c/myapp_app/src'
make: *** [release] Error 2
My first guess would be that libogg and libvorbis aren't installed in /local/lib, did you check that they are there?

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