free():invalid pointer

[hjiang13]

When I run the instrument on /lltfi/sample_programs/factorial.ll
An error occurred:

`free(): invalid pointer
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0. Program arguments: /home/hailong/llvm-project/build/bin/opt -load /home/hailong/LLTFI/BUILD/lltfi/bin/../llvm_passes/llfi-passes.so -genllfiindexpass -enable-new-pm=0 -o /home/hailong/LLTFI/BUILD/lltfi/sample_programs/sum/llfi/sum-llfi_index.ll /home/hailong/LLTFI/BUILD/lltfi/sample_programs/sum/sum.ll -S
#0 0x00007f7d04c10374 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
#1 0x00007f7d04c0dc14 SignalHandler(int) Signals.cpp:0:0
#2 0x00007f7d0467f090 (/lib/x86_64-linux-gnu/libc.so.6+0x43090)
#3 0x00007f7d0467f00b raise /build/glibc-SzIz7B/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
#4 0x00007f7d0465e859 abort /build/glibc-SzIz7B/glibc-2.31/stdlib/abort.c:81:7
#5 0x00007f7d046c926e __libc_message /build/glibc-SzIz7B/glibc-2.31/libio/../sysdeps/posix/libc_fatal.c:155:5
#6 0x00007f7d046d12fc /build/glibc-SzIz7B/glibc-2.31/malloc/malloc.c:5348:3
#7 0x00007f7d046d2b2c _int_free /build/glibc-SzIz7B/glibc-2.31/malloc/malloc.c:4173:5
#8 0x00007f7d049712af std::__cxx11::basic_string<char, std::char_traits, std::allocator >::_M_assign(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&) (/lib/x86_64-linux-gnu/libstdc++.so.6+0x1432af)
#9 0x00007f7d035c53ae void llvm::cl::initializer<char [38]>::apply<llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > >(llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >&) const (/home/hailong/LLTFI/BUILD/lltfi/bin/../llvm_passes/llfi-passes.so+0xb83ae)
#10 0x00007f7d035c51df void llvm::cl::applicator<llvm::cl::initializer<char [38]> >::opt<llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > >(llvm::cl::initializer<char [38]> const&, llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >&) (/home/hailong/LLTFI/BUILD/lltfi/bin/../llvm_passes/llfi-passes.so+0xb81df)
#11 0x00007f7d035c4f3a void llvm::cl::apply<llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >, llvm::cl::initializer<char [38]> >(llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >, llvm::cl::initializer<char [38]> const&) (/home/hailong/LLTFI/BUILD/lltfi/bin/../llvm_passes/llfi-passes.so+0xb7f3a)
#12 0x00007f7d035c4ab0 void llvm::cl::apply<llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >, llvm::cl::desc, llvm::cl::initializer<char [38]> >(llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >, llvm::cl::desc const&, llvm::cl::initializer<char [38]> const&) (/home/hailong/LLTFI/BUILD/lltfi/bin/../llvm_passes/llfi-passes.so+0xb7ab0)
#13 0x00007f7d035c43bb void llvm::cl::apply<llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >, char [28], llvm::cl::desc, llvm::cl::initializer<char [38]> >(llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >, char const (&) [28], llvm::cl::desc const&, llvm::cl::initializer<char [38]> const&) (/home/hailong/LLTFI/BUILD/lltfi/bin/../llvm_passes/llfi-passes.so+0xb73bb)
#14 0x00007f7d035c3b84 llvm::cl::opt<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >::opt<char [28], llvm::cl::desc, llvm::cl::initializer<char [38]> >(char const (&) [28], llvm::cl::desc const&, llvm::cl::initializer<char [38]> const&) (/home/hailong/LLTFI/BUILD/lltfi/bin/../llvm_passes/llfi-passes.so+0xb6b84)
#15 0x00007f7d035c2492 __static_initialization_and_destruction_0(int, int) SoftwareFailureAutoScanPass.cpp:0:0
#16 0x00007f7d035c2555 _GLOBAL__sub_I_SoftwareFailureAutoScanPass.cpp SoftwareFailureAutoScanPass.cpp:0:0
#17 0x00007f7d07750b9a call_init /build/glibc-SzIz7B/glibc-2.31/elf/dl-init.c:71:19
#18 0x00007f7d07750ca1 _dl_init /build/glibc-SzIz7B/glibc-2.31/elf/dl-init.c:118:9
#19 0x00007f7d0479c985 _dl_catch_exception /build/glibc-SzIz7B/glibc-2.31/elf/dl-error-skeleton.c:184:18
#20 0x00007f7d0775543d dl_open_worker /build/glibc-SzIz7B/glibc-2.31/elf/dl-open.c:763:5
#21 0x00007f7d0479c928 _dl_catch_exception /build/glibc-SzIz7B/glibc-2.31/elf/dl-error-skeleton.c:209:18
#22 0x00007f7d0775460a _dl_open /build/glibc-SzIz7B/glibc-2.31/elf/dl-open.c:837:17
#23 0x00007f7d03a1934c dlopen_doit /build/glibc-SzIz7B/glibc-2.31/dlfcn/dlopen.c:66:13
#24 0x00007f7d0479c928 _dl_catch_exception /build/glibc-SzIz7B/glibc-2.31/elf/dl-error-skeleton.c:209:18
#25 0x00007f7d0479c9f3 _dl_catch_error /build/glibc-SzIz7B/glibc-2.31/elf/dl-error-skeleton.c:228:12
#26 0x00007f7d03a19b59 _dlerror_run /build/glibc-SzIz7B/glibc-2.31/dlfcn/dlerror.c:174:40
#27 0x00007f7d03a193da dlopen /build/glibc-SzIz7B/glibc-2.31/dlfcn/dlopen.c:87:51
#28 0x00007f7d04bf0cb8 llvm::sys::DynamicLibrary::getPermanentLibrary(char const, std::__cxx11::basic_string<char, std::char_traits, std::allocator >) (/home/hailong/llvm-project/build/bin/../lib/libLLVMSupport.so.15git+0x1cacb8)
#29 0x00007f7d04b4c2c3 llvm::PluginLoader::operator=(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&) (/home/hailong/llvm-project/build/bin/../lib/libLLVMSupport.so.15git+0x1262c3)
#30 0x000055a3c6de01f1 llvm::cl::opt<llvm::PluginLoader, false, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > >::handleOccurrence(unsigned int, llvm::StringRef, llvm::StringRef) (/home/hailong/llvm-project/build/bin/opt+0x341f1)
#31 0x00007f7d04ad4777 ProvideOption(llvm::cl::Option, llvm::StringRef, llvm::StringRef, int, char const* const*, int&) CommandLine.cpp:0:0
#32 0x00007f7d04ae4292 llvm::cl::ParseCommandLineOptions(int, char const* const*, llvm::StringRef, llvm::raw_ostream*, char const*, bool) (/home/hailong/llvm-project/build/bin/../lib/libLLVMSupport.so.15git+0xbe292)
#33 0x000055a3c6dc9853 main (/home/hailong/llvm-project/build/bin/opt+0x1d853)
#34 0x00007f7d04660083 __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:342:3
#35 0x000055a3c6dcc6ae _start (/home/hailong/llvm-project/build/bin/opt+0x206ae)

ERROR: there was an error during running the instrumentation pass, please follow the provided instructions for instrument.`

[uditagarwal97]

Hi,

Thanks for submitting the bug report. Unfortunately, I'm not able to reproduce this bug on my side. Please provide the output of the following commands:
cat Makefile (Run this command after making factorial.c file from inside the factorial directory)
/home/hailong/llvm-project/build/bin/opt --version
opt --version
cat /etc/os-release
clang --version
Also, please provide the commit id of the LLTFI version you are using.

[hjiang13]

Hi, Thank you for your reply.
This issue has been solved by moving to Clang-13 on Uhuntu 18.04.
This issue happened when I was using Clang 15 on Ubuntu 20.04.
I am not sure what caused it.
Thank you

[karthikp-ubc]

Closing as it's now resolved.